From pallavi.joshi at Vanderbilt.Edu  Fri Oct  1 05:29:18 2004
From: pallavi.joshi at Vanderbilt.Edu (Joshi, Pallavi)
Date: Fri,  1 Oct 2004 04:29:18 -0500
Subject: [vtkusers] mesh to image conversion
Message-ID: <1096622958.415d236e88994@vuwebmail.vanderbilt.edu>

Hi,
I need some help from you regarding this posting of yours. I have a skull(i
extract it by thresholding the bones of a CT volume) and then I convert it to a
polygonal mesh. I now want to paint the inside of this mesh into an 3D image.
Can you please tell how how to go about this ? 

Any help will be greatly appreciated.

Thank You,
--Pallavi


Quoting Toon Huysmans <denhuys at hotmail.com>:

> Hi Raghu,
> 
>     I once used
> http://www.vtk.org/doc/nightly/html/classvtkPolyDataToImageStencil.html, but
> the input must be polygonal
>     i think. It can be used to paint the inner of the polygonal dataset into
> an image(3D).
> 
>     Maybe you could be a little more clear about your problem...
> 
> Toon.
> 
> ----- Original Message ----- 
> From: "Raghu Venkatram" <raghu.venkatram at gmail.com>
> To: <vtkusers at vtk.org>
> Sent: Monday, September 27, 2004 7:06 PM
> Subject: [vtkusers] mesh to image conversion
> 
> 
> > hello VTK users,
> >
> > We have a biomechanical model of the brain represented as a set of
> > points in 3d space, with x,y,z in millimeters. I would like to convert
> > this to 3 orthogonal image views. I heard from Luis Ibanez, that VTK
> > has some tools to rasterize, I would be glad if somebody could give me
> > some pointers.
> >
> > Thanks in advance,
> > Raghu
> > _______________________________________________
> > This is the private VTK discussion list.
> > Please keep messages on-topic. Check the FAQ at:
> <http://public.kitware.com/cgi-bin/vtkfaq>
> > Follow this link to subscribe/unsubscribe:
> > http://www.vtk.org/mailman/listinfo/vtkusers
> >
> _______________________________________________
> This is the private VTK discussion list. 
> Please keep messages on-topic. Check the FAQ at:
> <http://public.kitware.com/cgi-bin/vtkfaq>
> Follow this link to subscribe/unsubscribe:
> http://www.vtk.org/mailman/listinfo/vtkusers
> 


-----------------------------------------------------------------
Joshi, Pallavi
Vanderbilt University
Email: pallavi.joshi at Vanderbilt.Edu


From denhuys at hotmail.com  Fri Oct  1 06:08:46 2004
From: denhuys at hotmail.com (Toon Huysmans)
Date: Fri, 1 Oct 2004 12:08:46 +0200
Subject: [vtkusers] Re: progressive tetrahedral mesh
References: <415D2522.90601@ifi.unizh.ch>
Message-ID: <BAY14-DAV13UHQHh2wL00038eec@hotmail.com>

Hi Matthias,

        in that post I was looking for something different, a progressive
"tetrahedral" mesh. My
        mesh consisted out of tetrahedrons instead of triangles and
vtkDecimatePro does not
        support that.

        For your question: Since you want access to each step in the
progressive transition, i
        suppose you want to do some processing on the mesh.  In that case
you have to keep
        in mind that vtk is a visualization toolkit and that processing of
your data should be done
        in your own class-library, once the processing is done you can pass
the result to vtk
        and visualize it.

        There are some libs available for progressive meshes, for example
OpenMesh (which I use):

            http://www.openmesh.org

        Writing a filter that converts a OpenMesh-mesh to  vtkPolyData is
easy....

        Hope this helped

Toon.

----- Original Message ----- 
From: "matthias specht" <specht at ifi.unizh.ch>
To: <denhuys at hotmail.com>
Sent: Friday, October 01, 2004 11:36 AM
Subject: progressive tetrahedral mesh


> hi toon,
> I saw you (old) post on the vtkusers list and was wondering how you
> solved the problem since I'm looking for the same thing.
> I understood that vtkDecimatePro does the steps to create a progressive
> mesh; however it only lets you access the decimated mesh, without the
> sequence of edce collapses.
>
> So I guess one could "hack" that code to output the whole progressive
> mesh data structure...
>
> If you found a solution, would you give me (and/or the whole vtk
> comunity) access to the source code?
>
> regards
> matthias
>
>
> [vtkusers] Progressive Tetrahedral mesh
>
> *Toon Huysmans* denhuys at hotmail.com
>
<mailto:vtkusers%40vtk.org?Subject=%5Bvtkusers%5D%20Progressive%20Tetrahedra
l%20mesh&In-Reply-To=>
> /Mon May 3 06:11:10 EDT 2004/
>
>     * Previous message: [vtkusers] How to rotate an object after
>       move/pan ?
>       <http://public.kitware.com/pipermail/vtkusers/2004-May/073643.html>
>     * Next message: [vtkusers] How read the scalar data in a
>       vtkvolume16reader object? (the scalar data associated with some
>       specified voxel)
>       <http://public.kitware.com/pipermail/vtkusers/2004-May/073645.html>
>     * *Messages sorted by:* [ date ]
>
<http://public.kitware.com/pipermail/vtkusers/2004-May/date.html#73644>
>       [ thread ]
>
<http://public.kitware.com/pipermail/vtkusers/2004-May/thread.html#73644>
>       [ subject ]
>
<http://public.kitware.com/pipermail/vtkusers/2004-May/subject.html#73644>
>       [ author ]
>
<http://public.kitware.com/pipermail/vtkusers/2004-May/author.html#73644>
>
>
> ------------------------------------------------------------------------
>
> Hi all,
>
>     I`m looking for a multi-resolution tetrahedral mesh class, which uses
vertex-split and edge-collapse operations for obtaining different
resolutions.  I plan to use it together with vtk, maybe subclass
vtkUnstructuredGrid.
>
> Does anyone know of such a class in vtk or would like to share his
implementation of such a class?  Otherwise does anyone know of a library
outside of vtk, which does the same?
>
> Thanks,
>
> Toon.
>
> -- 
> matthias specht
> | mailto:specht at ifi.unizh.ch  http://www.ifi.unizh.ch/staff/specht
> office
> | multimedia lab, computer science department, university of zurich
> | winterthurerstr. 190, 8057 zurich, switzerland
> | phone +41-1-635-4565 fax +41-1-635-6809
>
>


From denhuys at hotmail.com  Fri Oct  1 06:14:50 2004
From: denhuys at hotmail.com (Toon Huysmans)
Date: Fri, 1 Oct 2004 12:14:50 +0200
Subject: [vtkusers] mesh to image conversion
References: <1096622958.415d236e88994@vuwebmail.vanderbilt.edu>
Message-ID: <BAY14-DAV13L2jpWkfb00038f4d@hotmail.com>

something like this should do the trick:

vtkImageData                       -- |
                                                | -->
vtkImageStencil   --> vtkImageData
vtkPolyDataToImageStencil   --|


Toon.
----- Original Message ----- 
From: "Joshi, Pallavi" <pallavi.joshi at Vanderbilt.Edu>
To: "Toon Huysmans" <denhuys at hotmail.com>
Cc: <vtkusers at vtk.org>
Sent: Friday, October 01, 2004 11:29 AM
Subject: [vtkusers] mesh to image conversion


> Hi,
> I need some help from you regarding this posting of yours. I have a
skull(i
> extract it by thresholding the bones of a CT volume) and then I convert it
to a
> polygonal mesh. I now want to paint the inside of this mesh into an 3D
image.
> Can you please tell how how to go about this ?
>
> Any help will be greatly appreciated.
>
> Thank You,
> --Pallavi
>
>
> Quoting Toon Huysmans <denhuys at hotmail.com>:
>
> > Hi Raghu,
> >
> >     I once used
> > http://www.vtk.org/doc/nightly/html/classvtkPolyDataToImageStencil.html,
but
> > the input must be polygonal
> >     i think. It can be used to paint the inner of the polygonal dataset
into
> > an image(3D).
> >
> >     Maybe you could be a little more clear about your problem...
> >
> > Toon.
> >
> > ----- Original Message ----- 
> > From: "Raghu Venkatram" <raghu.venkatram at gmail.com>
> > To: <vtkusers at vtk.org>
> > Sent: Monday, September 27, 2004 7:06 PM
> > Subject: [vtkusers] mesh to image conversion
> >
> >
> > > hello VTK users,
> > >
> > > We have a biomechanical model of the brain represented as a set of
> > > points in 3d space, with x,y,z in millimeters. I would like to convert
> > > this to 3 orthogonal image views. I heard from Luis Ibanez, that VTK
> > > has some tools to rasterize, I would be glad if somebody could give me
> > > some pointers.
> > >
> > > Thanks in advance,
> > > Raghu
> > > _______________________________________________
> > > This is the private VTK discussion list.
> > > Please keep messages on-topic. Check the FAQ at:
> > <http://public.kitware.com/cgi-bin/vtkfaq>
> > > Follow this link to subscribe/unsubscribe:
> > > http://www.vtk.org/mailman/listinfo/vtkusers
> > >
> > _______________________________________________
> > This is the private VTK discussion list.
> > Please keep messages on-topic. Check the FAQ at:
> > <http://public.kitware.com/cgi-bin/vtkfaq>
> > Follow this link to subscribe/unsubscribe:
> > http://www.vtk.org/mailman/listinfo/vtkusers
> >
>
>
> -----------------------------------------------------------------
> Joshi, Pallavi
> Vanderbilt University
> Email: pallavi.joshi at Vanderbilt.Edu
>


From nacho at lncc.br  Fri Oct  1 07:36:24 2004
From: nacho at lncc.br (Nacho Larrabide)
Date: Fri, 1 Oct 2004 08:36:24 -0300
Subject: [vtkusers] vtk TCL linking error
In-Reply-To: <20041001034416.4DDF330437@public.kitware.com>
References: <20041001034416.4DDF330437@public.kitware.com>
Message-ID: <952015558.20041001083624@lncc.br>

Hi Everybody,

   I'm having a little problem to staticly build vtk. I already
   builded all the libraries, but I'm still having a little error on
   the last part of the process. When its building the vtk.exe file I
   get:

Linking...
   Creating library E:\VTK\vtkbin\bin\Release\vtk.lib and object E:\VTK\vtkbin\bin\Release\vtk.exp
vtkTkAppInit.obj : error LNK2019: unresolved external symbol _Vtkhybridtcl_Init referenced in function _Tcl_AppInit
vtkTkAppInit.obj : error LNK2019: unresolved external symbol "public: __thiscall vtkHybridInstantiator::vtkHybridInstantiator(void)" (??0vtkHybridInstantiator@@QAE at XZ) referenced in function _$E28
vtkTkAppInit.obj : error LNK2019: unresolved external symbol "public: __thiscall vtkHybridInstantiator::~vtkHybridInstantiator(void)" (??1vtkHybridInstantiator@@QAE at XZ) referenced in function _$E29
E:\VTK\vtkbin\bin\Release\vtk.exe : fatal error LNK1120: 3 unresolved externals

Build Time 0:08
Build log was saved at "file://e:\Vtk\vtkbin\Wrapping\Tcl\Release\BuildLog.htm"
vtk - 4 error(s), 0 warning(s)

    Any Ideas?, Thanx's everybody and I'm waiting for an answer.

    Regards,

    Nacho

----------------------------------------------------- 
Nacho Larrabide
Rua Getulio Vargas 333 - Quitandinha - CEP: 25651-070
Petropolis - RJ - Brasil

Tel: +54 24 2233-6137  - Fax: +54 24 2233-6167

mailto:nacho at lncc.br
-----------------------------------------------------



From jerome.lecoq at espci.fr  Fri Oct  1 08:26:05 2004
From: jerome.lecoq at espci.fr (=?iso-8859-1?Q?J=E9r=F4me_Lecoq?=)
Date: Fri, 1 Oct 2004 14:26:05 +0200 (CEST)
Subject: [vtkusers] Destructor and vector
Message-ID: <64387.193.54.85.137.1096633565.squirrel@www.bde.espci.fr>

Thank you very much!
It worked just as you said

J?r?me


From sscomp2004 at yahoo.com.au  Fri Oct  1 09:38:48 2004
From: sscomp2004 at yahoo.com.au (s comp)
Date: Fri, 1 Oct 2004 23:38:48 +1000 (EST)
Subject: [vtkusers] How to operate on the attributes of data imported into
	vtk?
Message-ID: <20041001133848.7863.qmail@web61110.mail.yahoo.com>

How to operate on the attributes of data imported into vtk?
I am using tcl, so I guess this is partly a tcl question...
any info would be appreciated,
 
thanks,
 
Sonam



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From Florent.Chandelier at USherbrooke.ca  Fri Oct  1 09:46:19 2004
From: Florent.Chandelier at USherbrooke.ca (Florent.Chandelier at USherbrooke.ca)
Date: Fri, 01 Oct 2004 09:46:19 -0400
Subject: [vtkusers] 3D modeling .. . prob with thresholding
In-Reply-To: <20040930003103.QWYS5489.tomts14-srv.bellnexxia.net@mxmta.bellnexxia.net>
References: <20040930003103.QWYS5489.tomts14-srv.bellnexxia.net@mxmta.bellnexxia.net>
Message-ID: <415D5FAB.9050008@USherbrooke.ca>

So I've been adding the Update() to my reader .. of  course that was a 
big mistake and thx for that.
now I have a range[0] of 81 and a range[1] fo 255.

I'll post 6 slices , the .exe and the source of my short prog.
see : http://florent.chandelier.free.fr/dean.zip

I've added  the same range thing after my threshold and I get 
range[0]=100 and range[1]=255 ..... so it seems to be ok but when I use 
the vtkContourFilter->SetValue to 150 it extracts me some contours, or 
I've used the inbetween Threshold and it is not supposed to get any 
result there...
I guess my way of using the threshold is not proper and I'll check that

-- 
Florent Chandelier - florent.chandelier at usherbrooke.ca
PhD Student at the university of Sherbrooke (QC, Canada)
Bio mechanical research department - http://www.biomec.gme.usherb.ca/

Lab Phone : (001) (819)-821-7000



From pallavi.joshi at vanderbilt.edu  Fri Oct  1 10:15:18 2004
From: pallavi.joshi at vanderbilt.edu (Pallavi Joshi)
Date: Fri, 1 Oct 2004 09:15:18 -0500
Subject: [vtkusers] mesh to image conversion
References: <1096622958.415d236e88994@vuwebmail.vanderbilt.edu>
	<BAY14-DAV13L2jpWkfb00038f4d@hotmail.com>
Message-ID: <000801c4a7c1$14e0f3b0$da593b81@Pallavi>

  Hi,
  I did it that way and it works as well....but the problem is the code 
takes toooo much time to execute as my images are 256x256x124 sized. Do you 
know any other way which will give the same result but will take less time ?

  thanks,
  --pallavi

  ----- Original Message ----- 
  From: "Toon Huysmans" <denhuys at hotmail.com>
  To: "Joshi, Pallavi" <pallavi.joshi at Vanderbilt.Edu>
  Cc: "VtkUsers" <vtkusers at vtk.org>
  Sent: Friday, October 01, 2004 5:14 AM
  Subject: Re: [vtkusers] mesh to image conversion


  > something like this should do the trick:
  >
  > vtkImageData                       -- |
  >                                                | -->
  > vtkImageStencil   --> vtkImageData
  > vtkPolyDataToImageStencil   --|
  >
  >
  > Toon.
  > ----- Original Message ----- 
  > From: "Joshi, Pallavi" <pallavi.joshi at Vanderbilt.Edu>
  > To: "Toon Huysmans" <denhuys at hotmail.com>
  > Cc: <vtkusers at vtk.org>
  > Sent: Friday, October 01, 2004 11:29 AM
  > Subject: [vtkusers] mesh to image conversion
  >
  >
  >> Hi,
  >> I need some help from you regarding this posting of yours. I have a
  > skull(i
  >> extract it by thresholding the bones of a CT volume) and then I convert 
it
  > to a
  >> polygonal mesh. I now want to paint the inside of this mesh into an 3D
  > image.
  >> Can you please tell how how to go about this ?
  >>
  >> Any help will be greatly appreciated.
  >>
  >> Thank You,
  >> --Pallavi
  >>
  >>
  >> Quoting Toon Huysmans <denhuys at hotmail.com>:
  >>
  >> > Hi Raghu,
  >> >
  >> >     I once used
  >> > 
http://www.vtk.org/doc/nightly/html/classvtkPolyDataToImageStencil.html,
  > but
  >> > the input must be polygonal
  >> >     i think. It can be used to paint the inner of the polygonal 
dataset
  > into
  >> > an image(3D).
  >> >
  >> >     Maybe you could be a little more clear about your problem...
  >> >
  >> > Toon.
  >> >
  >> > ----- Original Message ----- 
  >> > From: "Raghu Venkatram" <raghu.venkatram at gmail.com>
  >> > To: <vtkusers at vtk.org>
  >> > Sent: Monday, September 27, 2004 7:06 PM
  >> > Subject: [vtkusers] mesh to image conversion
  >> >
  >> >
  >> > > hello VTK users,
  >> > >
  >> > > We have a biomechanical model of the brain represented as a set of
  >> > > points in 3d space, with x,y,z in millimeters. I would like to 
convert
  >> > > this to 3 orthogonal image views. I heard from Luis Ibanez, that 
VTK
  >> > > has some tools to rasterize, I would be glad if somebody could give 
me
  >> > > some pointers.
  >> > >
  >> > > Thanks in advance,
  >> > > Raghu
  >> > > _______________________________________________
  >> > > This is the private VTK discussion list.
  >> > > Please keep messages on-topic. Check the FAQ at:
  >> > <http://public.kitware.com/cgi-bin/vtkfaq>
  >> > > Follow this link to subscribe/unsubscribe:
  >> > > http://www.vtk.org/mailman/listinfo/vtkusers
  >> > >
  >> > _______________________________________________
  >> > This is the private VTK discussion list.
  >> > Please keep messages on-topic. Check the FAQ at:
  >> > <http://public.kitware.com/cgi-bin/vtkfaq>
  >> > Follow this link to subscribe/unsubscribe:
  >> > http://www.vtk.org/mailman/listinfo/vtkusers
  >> >
  >>
  >>
  >> -----------------------------------------------------------------
  >> Joshi, Pallavi
  >> Vanderbilt University
  >> Email: pallavi.joshi at Vanderbilt.Edu
  >>
  >



From Florent.Chandelier at USherbrooke.ca  Fri Oct  1 10:44:33 2004
From: Florent.Chandelier at USherbrooke.ca (Florent.Chandelier at USherbrooke.ca)
Date: Fri, 01 Oct 2004 10:44:33 -0400
Subject: [vtkusers] vtkImageThreshold -> ThresholdBetween malfunction
In-Reply-To: <000801c4a7c1$14e0f3b0$da593b81@Pallavi>
References: <1096622958.415d236e88994@vuwebmail.vanderbilt.edu>	<BAY14-DAV13L2jpWkfb00038f4d@hotmail.com>
	<000801c4a7c1$14e0f3b0$da593b81@Pallavi>
Message-ID: <415D6D51.8020006@USherbrooke.ca>

Hi vtk users,

I'm using the [vtkImageThreshold -> ThresholdBetween] to binarise an image.
here is my code :

 vtkBMPReader *imagein=vtkBMPReader::New();
  imagein->SetFilePrefix ("slices"); // name of the files to read
  imagein->SetDataExtent(0, 1024, 0, 1024,0,5);
  imagein->Update();

  vtkImageThreshold *binimg=vtkImageThreshold::New();
  binimg->SetInput( imagein->GetOutput() );
  binimg->ThresholdBetween(TissueLow, TissueHigh); // Tissue** are float 
respec 100 and 220
  binimg->SetReplaceIn(1);
  binimg->SetInValue(250);
  binimg->SetReplaceOut(1);
  binimg->SetOutValue(80);
  binimg->Update();

But the fact is that when I use vtkcontourfilter with a SetValue of 100 
I got a volume in my renderer window .. whereas I binarise my image in 
between 80 and 250 though .... I don't understand this result !!

any idea

-- 
Florent Chandelier - florent.chandelier at usherbrooke.ca
PhD Student at the university of Sherbrooke (QC, Canada)
Bio mechanical research department - http://www.biomec.gme.usherb.ca/

Lab Phone : (001) (819)-821-7000



From j.m.h.thomas at dl.ac.uk  Fri Oct  1 11:06:46 2004
From: j.m.h.thomas at dl.ac.uk (Jens Thomas)
Date: Fri, 01 Oct 2004 16:06:46 +0100
Subject: [vtkusers] Ongong woes building vtk on Mac OSX
In-Reply-To: <A3D22030-124F-11D9-B400-00039383F730@science-and-technology.nl>
References: <A3D22030-124F-11D9-B400-00039383F730@science-and-technology.nl>
Message-ID: <415D7286.4010705@dl.ac.uk>

Hi

I'd just like to thank everybody for their advice, without which I would 
almost certainly now be bald, having pullled all my hair out...

I haven't ended up doing it exactly as was suggested, as I couldn't get 
it to work for me: if I tried to build the shared library from 
libpython2.3a, I got:

cc -dynamiclib -all_load -framework System -framework CoreServices 
-framework Foundation ./lib/python2.3/config/libpython2.3.a -o 
./lib/libpython2.3.dylib -install_name ./python/lib/libpython2.3.dylib 
-current_version 2.3 -compatibility_version 2.3
ld: Undefined symbols:
_environ
/usr/bin/libtool: internal link edit command failed

However, I've found an alternative and I thought I'd let people know 
what I did in case it helps anyone in a similar situation, or anyone can 
think of a better way around it (I've cobbled this together from all 
sorts of place without a full understanding of why it all works, so a 
few of the steps may be redundant).

Anyway, ..

1. I downloaded Python 2.3.4 into my home directory and configured it with:

./configure --prefix=/Users/jens/Python-2.3.4 -with-dyld

then edited the Makefile to add the following flags to BASECFLAGS:

-fno-common -fPIC

running make and make install created the Python installation in 
/Users/jens/Python-2.3.4

2.  I then checked out the latest CVS version of vtk  to the directory 
(/Users/Jens/VTK) and made it with the following (these are what I think 
are the relevant bits from my CMakeCache.txt):

//Build VTK with shared libraries.
BUILD_SHARED_LIBS:BOOL=ON
//Python Framework
PYTHON_DEBUG_LIBRARY:FILEPATH=/Users/jens/Python-2.3.4lib/python2.3/config/libpython2.3.a                                                                                                

//Path to a program.
PYTHON_EXECUTABLE:FILEPATH=/Users/jens/Python-2.3.4/bin/python2.3                                                                                         

//What is the path where the file Python.h can be found
PYTHON_INCLUDE_PATH:PATH=/Users/jens/Python-2.3.4/include/python2.3                                                                                            

//Python Framework
PYTHON_LIBRARY:FILEPATH=/Users/jens/Python-2.3.4/lib/python2.3/config/libpython2.3.a                                                                                           

//Utility library needed for vtkpython
PYTHON_UTIL_LIBRARY:FILEPATH=PYTHON_UTIL_LIBRARY-NOTFOUND
//Install path prefix, prepended onto install directories.
CMAKE_INSTALL_PREFIX:PATH=/Users/jens/VTK_INSTALL

(I linked against the framework version of tcl and tk, which were picked 
up automatically and so I haven't included these).

For some reason couldn't get ccmake to run a build outside the source 
directory. I'm sure that before, I've created an empty directory (e.g 
/Users/jens/VTK_INSTALL) cd'd to this and then run ccmake 
/Users/jens/VTK (where VTK is the directory containing the source 
files), and this has built everything in VTK_INSTALL.

However, since this didn't work, after I ran make and make install, I 
had to run the command:

cmake -P cmake_install.cmake

in /Users/jens/VTK to get the stuff copied across to /Users/jens/VTK_INSTALL

I then had to cd to /Users/jens/VTK/Wrapping/Python and run the command:

/Users/jens/Python-2.3.4/bin/python2.3 setup.py install

to get the vtk into the python directory tree.

After this, I could run /Users/jens/Python-2.3.4/bin/python2.3 and get 
it to import vtk fine.

Thanks again for the help,

Jens








Sander Niemeijer wrote:

>>   Also ... and of possible help to you ... If you are linking static 
>> objects into a dynamic library, you will likely need to compile your 
>> static objects as "position independent" or "relocatable" objects. 
>> Depending on your compiler, this just means adding '-fPIC', '-KPIC', 
>> etc. to the compiler flags.
>
>
> You are right. I must confess that I don't really know the rationale 
> anymore about why we chose the solution we chose back then (it might 
> also just have been a 'it looks like it works now, so lets not touch 
> it anymore' solution). Anyway we also have a patch that we apply to 
> the Python package for Mac OS X.
> I will have to dig into it a bit more to figure out if what we did was 
> actually the proper way to do it, but somehow we were able to create a 
> working version of VTK(X11)/Python/wxPython(Gtk) in the end.
>
> If you want to have a look at the build system/patches/etc. for our 
> application, you can download it for free from our website 
> <http://www.science-and-technology.nl/beat/>. You should get the 
> visan-1.0.0.tar.gz from the download section. This file contains the 
> appropriate sources for Python/VTK/wxPython/etc. and an automatic 
> build system. The Python patch I mentioned is located in the 
> 'packages/patches' directory and the build options we use for building 
> Python can be found in the python.mk file.
>
>
> And for Mathieu:
>
> On woensdag, sep 29, 2004, at 20:27 Europe/Amsterdam, Mathieu 
> Malaterre wrote:
>
>> Could someone confirm that vtkpython doesn't work on MacOSX then ?
>
>
> It does seem to work for us (using VTK4.4 and X11).
>
> Best regards,
> Sander
>
> _______________________________________________
> This is the private VTK discussion list. Please keep messages 
> on-topic. Check the FAQ at: <http://public.kitware.com/cgi-bin/vtkfaq>
> Follow this link to subscribe/unsubscribe:
> http://www.vtk.org/mailman/listinfo/vtkusers
>



From dean.inglis at camris.ca  Fri Oct  1 11:27:22 2004
From: dean.inglis at camris.ca (dean.inglis at camris.ca)
Date: Fri, 1 Oct 2004 11:27:22 -0400
Subject: [vtkusers] 3D modeling .. . prob with thresholding
Message-ID: <20041001152722.JUEC2099.tomts9-srv.bellnexxia.net@mxmta.bellnexxia.net>

Florent,

clearly, you are trying to visualize the boundary between
trabecular bone and the surrounding marrow cavities.  It is 
sufficient to set the threshold filter as you already have
and, in fact, you could use a 3D image/volume visualization pipeline to 
(say with vtkVolumeTextureMapper etc.) to also view the results.
You can also use the contour filter as is by setting the iso-contour
value to 101, 100.1, 100.01 etc. or 254.99.  A value of 100 will not
work because there are no scalars in the output of the threshold
filter below 100 to interpolate against, whereas a value of, for
example, 100.1 is between 100 and 255, so it will work.
Either way, you are still visualizing the boundary between 
bone and non-bone.  If you were measuring the area of
the non-bone surface, I would be inclined to extract an iso-value
of 255.

Dean


> 
> From: "Florent.Chandelier at USherbrooke.ca" <Florent.Chandelier at USherbrooke.ca>
> Date: 2004/10/01 Fri AM 09:46:19 GMT-04:00
> To: <dean.inglis at camris.ca>
> Subject: Re: [vtkusers] 3D modeling .. . prob with thresholding
> 
> So I've been adding the Update() to my reader .. of  course that was a 
> big mistake and thx for that.
> now I have a range[0] of 81 and a range[1] fo 255.
> 
> I'll post 6 slices , the .exe and the source of my short prog.
> see : http://florent.chandelier.free.fr/dean.zip
> 
> I've added  the same range thing after my threshold and I get 
> range[0]=100 and range[1]=255 ..... so it seems to be ok but when I use 
> the vtkContourFilter->SetValue to 150 it extracts me some contours, or 
> I've used the inbetween Threshold and it is not supposed to get any 
> result there...
> I guess my way of using the threshold is not proper and I'll check that
> 
> -- 
> Florent Chandelier - florent.chandelier at usherbrooke.ca
> PhD Student at the university of Sherbrooke (QC, Canada)
> Bio mechanical research department - http://www.biomec.gme.usherb.ca/
> 
> Lab Phone : (001) (819)-821-7000
> 
> 



From sergio at unizar.es  Fri Oct  1 11:46:43 2004
From: sergio at unizar.es (Sergio Andres)
Date: Fri, 01 Oct 2004 17:46:43 +0200
Subject: [vtkusers] ImagePlaneWidget and GetResliceOutput
Message-ID: <415D7BE3.2020304@unizar.es>

Hi all,

I have a problem with vtkImagePlaneWidget and its method GetResliceOutput().

The pipeline is like this:

inputImage --> vtkImagePlangeWidget::GetResliceOutput() --> 
vtkImageMapToColors --> vtkImageActor

I use all these classes to display the same image in other window.
And the problems are:

1) The size of the output image from the widget is not the expected size.
I read that the widget generates an output image whose extent is a power 
of 2.

2) When I set a new inputImage, an error comes up about the update 
extent and whole extent.

I have been reading some previous mails sent to this list about these 
problems,
but I didn't manage to fix them.

So I would appreciate any help.
Thanks in advance.

Sergio.



From mlederer at foster-miller.com  Fri Oct  1 12:38:35 2004
From: mlederer at foster-miller.com (Lederer, Maitland)
Date: Fri, 1 Oct 2004 12:38:35 -0400
Subject: [vtkusers] ImagePlaneWidget and GetResliceOutput
Message-ID: <948A5EDF684ECD4A94C5120EABD66CA90122424B@b1srvmail.foster-miller.com>

Sergio-

I think I had your problem #2 yesterday.  :)  You are probably using
SetDisplayExtent on your vtkImageActor somewhere, yes?  Comment it out
and see what happens.  You probably have your display extent set to
something that is outside the extent of the image.

HTH,
-maitland

-----Original Message-----
From: Sergio Andres [mailto:sergio at unizar.es] 
Sent: Friday, October 01, 2004 11:47 AM
To: vtkusers at vtk.org
Subject: [vtkusers] ImagePlaneWidget and GetResliceOutput

Hi all,

I have a problem with vtkImagePlaneWidget and its method
GetResliceOutput().

The pipeline is like this:

inputImage --> vtkImagePlangeWidget::GetResliceOutput() --> 
vtkImageMapToColors --> vtkImageActor

I use all these classes to display the same image in other window.
And the problems are:

1) The size of the output image from the widget is not the expected
size.
I read that the widget generates an output image whose extent is a power

of 2.

2) When I set a new inputImage, an error comes up about the update 
extent and whole extent.

I have been reading some previous mails sent to this list about these 
problems,
but I didn't manage to fix them.

So I would appreciate any help.
Thanks in advance.

Sergio.

_______________________________________________
This is the private VTK discussion list. 
Please keep messages on-topic. Check the FAQ at:
<http://public.kitware.com/cgi-bin/vtkfaq>
Follow this link to subscribe/unsubscribe:
http://www.vtk.org/mailman/listinfo/vtkusers


From mlederer at foster-miller.com  Fri Oct  1 12:46:42 2004
From: mlederer at foster-miller.com (Lederer, Maitland)
Date: Fri, 1 Oct 2004 12:46:42 -0400
Subject: [vtkusers] picking twice on imageactor?
Message-ID: <948A5EDF684ECD4A94C5120EABD66CA903549EE7@b1srvmail.foster-miller.com>

Hey all-

I'm using a vtkPropPicker to pick on some vtkImageActors.  The
interesting thing is that when I use the keypress-p to pick, it calls
the proc associated with the pick event (AddPointToPlane) twice,
apparently on two different, but close points.  It does this even when I
click on parts of the space that have no props.  It does *not* call the
proc twice when i use the vtkPropPicker->Pick command.  And yes, I am
really really certain that I'm not hitting the 'p' key twice.  :)

vtkPropPicker picker
picker AddObserver PickEvent AddPointToPlane

Any ideas?  

Thanks,
-m

**************************
M. Maitland Lederer
Staff Engineer 
Foster-Miller, Inc.
(781)684-4618




From mlederer at foster-miller.com  Fri Oct  1 12:59:12 2004
From: mlederer at foster-miller.com (Lederer, Maitland)
Date: Fri, 1 Oct 2004 12:59:12 -0400
Subject: [vtkusers] picking twice on imageactor? -- CORRECTION
Message-ID: <948A5EDF684ECD4A94C5120EABD66CA903549EE8@b1srvmail.foster-miller.com>

Hey all-

I'm a big fat liar.  vtkPropPicker doesn't do anything when I try to
pick on parts of the space without Props.

My guess is that it's picking the front and back surfaces of the
ImageActor.  Is there a way to keep it from doing this?

Thanks,
-m

-----Original Message-----
From: Lederer, Maitland 
Sent: Friday, October 01, 2004 12:47 PM
To: vtkusers at vtk.org
Subject: [vtkusers] picking twice on imageactor?

Hey all-

I'm using a vtkPropPicker to pick on some vtkImageActors.  The
interesting thing is that when I use the keypress-p to pick, it calls
the proc associated with the pick event (AddPointToPlane) twice,
apparently on two different, but close points.  It does this even when I
click on parts of the space that have no props.  It does *not* call the
proc twice when i use the vtkPropPicker->Pick command.  And yes, I am
really really certain that I'm not hitting the 'p' key twice.  :)

vtkPropPicker picker
picker AddObserver PickEvent AddPointToPlane

Any ideas?  

Thanks,
-m

**************************
M. Maitland Lederer
Staff Engineer 
Foster-Miller, Inc.
(781)684-4618


_______________________________________________
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Please keep messages on-topic. Check the FAQ at:
<http://public.kitware.com/cgi-bin/vtkfaq>
Follow this link to subscribe/unsubscribe:
http://www.vtk.org/mailman/listinfo/vtkusers


From sergio at unizar.es  Fri Oct  1 13:08:45 2004
From: sergio at unizar.es (Sergio Andres)
Date: Fri, 01 Oct 2004 19:08:45 +0200
Subject: [vtkusers] ImagePlaneWidget and GetResliceOutput
References: <948A5EDF684ECD4A94C5120EABD66CA90122424B@b1srvmail.foster-miller.com>
Message-ID: <415D8F1D.9070808@unizar.es>

Thank you for your answer.

I add SetDisplayExtent to avoid problem #1.... and it works.
I think this is not the problem, because the error came up before adding 
that.


Lederer, Maitland escribi?:

>Sergio-
>
>I think I had your problem #2 yesterday.  :)  You are probably using
>SetDisplayExtent on your vtkImageActor somewhere, yes?  Comment it out
>and see what happens.  You probably have your display extent set to
>something that is outside the extent of the image.
>
>HTH,
>-maitland
>
>-----Original Message-----
>From: Sergio Andres [mailto:sergio at unizar.es] 
>Sent: Friday, October 01, 2004 11:47 AM
>To: vtkusers at vtk.org
>Subject: [vtkusers] ImagePlaneWidget and GetResliceOutput
>
>Hi all,
>
>I have a problem with vtkImagePlaneWidget and its method
>GetResliceOutput().
>
>The pipeline is like this:
>
>inputImage --> vtkImagePlangeWidget::GetResliceOutput() --> 
>vtkImageMapToColors --> vtkImageActor
>
>I use all these classes to display the same image in other window.
>And the problems are:
>
>1) The size of the output image from the widget is not the expected
>size.
>I read that the widget generates an output image whose extent is a power
>
>of 2.
>
>2) When I set a new inputImage, an error comes up about the update 
>extent and whole extent.
>
>I have been reading some previous mails sent to this list about these 
>problems,
>but I didn't manage to fix them.
>
>So I would appreciate any help.
>Thanks in advance.
>
>Sergio.
>
>_______________________________________________
>This is the private VTK discussion list. 
>Please keep messages on-topic. Check the FAQ at:
><http://public.kitware.com/cgi-bin/vtkfaq>
>Follow this link to subscribe/unsubscribe:
>http://www.vtk.org/mailman/listinfo/vtkusers
>_______________________________________________
>This is the private VTK discussion list. 
>Please keep messages on-topic. Check the FAQ at: <http://public.kitware.com/cgi-bin/vtkfaq>
>Follow this link to subscribe/unsubscribe:
>http://www.vtk.org/mailman/listinfo/vtkusers
>
>
>  
>




From niemeijer at science-and-technology.nl  Fri Oct  1 13:38:02 2004
From: niemeijer at science-and-technology.nl (Sander Niemeijer)
Date: Fri, 1 Oct 2004 19:38:02 +0200
Subject: [vtkusers] Ongong woes building vtk on Mac OSX
In-Reply-To: <415D7286.4010705@dl.ac.uk>
Message-ID: <A512D537-13D0-11D9-B3FA-00039383F730@science-and-technology.nl>

Hi Jens,

I'm glad you got it working.

Let me provide some additional information, since some options are not  
really necessary.

> I haven't ended up doing it exactly as was suggested, as I couldn't  
> get it to work for me: if I tried to build the shared library from  
> libpython2.3a, I got:
>
> cc -dynamiclib -all_load -framework System -framework CoreServices  
> -framework Foundation ./lib/python2.3/config/libpython2.3.a -o  
> ./lib/libpython2.3.dylib -install_name ./python/lib/libpython2.3.dylib  
> -current_version 2.3 -compatibility_version 2.3
> ld: Undefined symbols:
> _environ
> /usr/bin/libtool: internal link edit command failed

Did you try this with Python-2.3.3 or Python-2.3.4? And did this Python  
build use -fno-common or not?

> 1. I downloaded Python 2.3.4 into my home directory and configured it  
> with:
>
> ./configure --prefix=/Users/jens/Python-2.3.4 -with-dyld

The -with-dyld option is ignored by the configure script (and you  
probably meant --with-dyld (2 dashes)).
When you run configure you should also see:
---
checking for dyld... always on for Darwin
---
So explicitly enabling dyld is not needed.

> then edited the Makefile to add the following flags to BASECFLAGS:
>
>  -fno-common -fPIC

The -fPIC does not seem to be needed on Mac OS X (according to  
documentation I found in GNU libtool, PIC objects are the default on  
the Mac). You only need to provide -fno-common on Mac OS X to create a  
shared library (the -fno-common option is explained at  
<http://developer.apple.com/documentation/DeveloperTools/Conceptual/ 
MachORuntime/Overview/chapter_2_section_3.html>).

There is also a difference between Python-2.3.3 and Python-2.3.4.  
Python-2.3.3 automatically added the '-fno-common' option to the base  
flags, while Python-2.3.4 does not do this anymore.

Instead of editing your Makefile to add the -fno-common option, you can  
also provide a BASECFLAGS initialization with the configure script (the  
configure script of Python supports this).

So in your case, configuring Python-2.3.4 with

  ./configure --prefix=/Users/jens/Python-2.3.4  BASECFLAGS=-fno-common

should also work (and is a bit cleaner :-).

> running make and make install created the Python installation in  
> /Users/jens/Python-2.3.4
>
> 2.  I then checked out the latest CVS version of vtk  to the directory  
> (/Users/Jens/VTK) and made it with the following (these are what I  
> think are the relevant bits from my CMakeCache.txt):
>
> //Build VTK with shared libraries.
> BUILD_SHARED_LIBS:BOOL=ON
> //Python Framework
> PYTHON_DEBUG_LIBRARY:FILEPATH=/Users/jens/Python-2.3.4lib/python2.3/ 
> config/libpython2.3.a
> //Path to a program.
> PYTHON_EXECUTABLE:FILEPATH=/Users/jens/Python-2.3.4/bin/python2.3
> //What is the path where the file Python.h can be found
> PYTHON_INCLUDE_PATH:PATH=/Users/jens/Python-2.3.4/include/python2.3
> //Python Framework
> PYTHON_LIBRARY:FILEPATH=/Users/jens/Python-2.3.4/lib/python2.3/config/ 
> libpython2.3.a
> //Utility library needed for vtkpython
> PYTHON_UTIL_LIBRARY:FILEPATH=PYTHON_UTIL_LIBRARY-NOTFOUND
> //Install path prefix, prepended onto install directories.
> CMAKE_INSTALL_PREFIX:PATH=/Users/jens/VTK_INSTALL

Normally, you shouldn't link a static library against a shared library  
(because of the PIC problems), but since your static library of Python  
contains PIC objects this will indeed work out fine.
My guess however is that you will get quite large VTK Python modules  
because of this, since each VTK-Python module will now be linked  
statically with the Python library.

> (I linked against the framework version of tcl and tk, which were  
> picked up automatically and so I haven't included these).
>
> For some reason couldn't get ccmake to run a build outside the source  
> directory. I'm sure that before, I've created an empty directory (e.g  
> /Users/jens/VTK_INSTALL) cd'd to this and then run ccmake  
> /Users/jens/VTK (where VTK is the directory containing the source  
> files), and this has built everything in VTK_INSTALL.
>
> However, since this didn't work, after I ran make and make install, I  
> had to run the command:
>
> cmake -P cmake_install.cmake
>
> in /Users/jens/VTK to get the stuff copied across to  
> /Users/jens/VTK_INSTALL

I'm using cmake-1.8.3 and that doesn't have the '-P' option. So, I  
guess you are using a newer version. Could that be the cause of your  
problem?

> I then had to cd to /Users/jens/VTK/Wrapping/Python and run the  
> command:
>
> /Users/jens/Python-2.3.4/bin/python2.3 setup.py install
>
> to get the vtk into the python directory tree.
>
> After this, I could run /Users/jens/Python-2.3.4/bin/python2.3 and get  
> it to import vtk fine.

Best regards,
Sander



From rhodes at sgi.com  Fri Oct  1 19:55:44 2004
From: rhodes at sgi.com (Rocky Rhodes)
Date: Fri, 1 Oct 2004 16:55:44 -0700 
Subject: [vtkusers] MetaImage support
Message-ID: <563CBF90DCC3224184FE10F022533715C7A8E0@mtv-atc-010e--n.corp.sgi.com>

I have used MetaIO headers for reading binary 3d image data files into itk.
I assumed the vtkImageReader would know about this format as well, but it
doesn't seem to.  I don't see anything in the documentation, but wondered if
there was a vtk MetaIO image reader anywhere; or support for any similar
format, where a small text header file contains a pointer to the file
containing the raw binary data.  Nrrd headers are like this as well.  I was
hopeful when I saw the vtk XML file formats, but didn't see any version of
these that allowed the binary data to reside in separate files.

Thanks for the help.

	Rocky



From burlen at apollo.sr.unh.edu  Fri Oct  1 23:50:33 2004
From: burlen at apollo.sr.unh.edu (Burlen Loring)
Date: Fri, 1 Oct 2004 23:50:33 -0400
Subject: [vtkusers] Latex annotation
Message-ID: <200410012350.35053.burlen@apollo.sr.unh.edu>

Hi, does anyone have any method to use latex for 2d/3d annotation in VTK?


 


From sscomp2004 at yahoo.com.au  Sun Oct  3 01:25:16 2004
From: sscomp2004 at yahoo.com.au (s comp)
Date: Sun, 3 Oct 2004 15:25:16 +1000 (EST)
Subject: [vtkusers] Can I extract tetrahedra from vtkConvexPointSet and then
	discard ConvexPointSet?
Message-ID: <20041003052516.96436.qmail@web61107.mail.yahoo.com>

I am using 2 cell types in an unstructured grid:
 
Voxels and ConvexPointSets
 
Apparently the ConvexPointSet is broken into tetrahedra for generating isosurfaces.
 
I would like to know if I can substitute these tetrahedra for the ConvexPointSet into the unstructured grid?
(Since a lot of tools dont seem to work for this cell type)
 
Thanks,
 
Sonam



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From rohlof at gmx.de  Sun Oct  3 11:14:21 2004
From: rohlof at gmx.de (rohlof)
Date: Sun, 3 Oct 2004 17:14:21 +0200
Subject: [vtkusers] Getting orientation of picked points.
Message-ID: <20041003151425.39EEE2D4AE@public.kitware.com>

Hi,

i'm created an image-based volume based on headsq, which visualizes normals
by integrating "vtkHedgeHog".
Now, i use PointPicker to get ID and position of every point but need the
orientation, too.
Is there a way to get the orientation of a normal, which is associated with
a picked point?

Thx in advance.



From guanw at rhpcs.mcmaster.ca  Sun Oct  3 17:29:45 2004
From: guanw at rhpcs.mcmaster.ca (Weiguang Guan)
Date: Sun, 3 Oct 2004 17:29:45 -0400 (EDT)
Subject: [vtkusers] VTK4.2 CD
Message-ID: <Pine.LNX.4.44.0410031719280.12515-100000@hal>

Hi,

We bought vtk books (user guide and visualization toolkit) a few months
ago. Recently I was trying to install it on both linux and windows from
the CD that comes with the books. The version is 4.2. After cmake, the
generated Makefile doesn't include three classes (vtkPushImageFilterSample
vtkPushImageReader vtkPushPipeline) for libHybrid.a. Building it on 
windows has the same problem. Does anyone know how this could happen?

Weiguang

-- 
========================================================
Weiguang Guan, Research Engineer
RHPCS, McMaster University
========================================================



From guernika_devel at yahoo.it  Mon Oct  4 03:50:44 2004
From: guernika_devel at yahoo.it (francesco caruso)
Date: Mon, 04 Oct 2004 09:50:44 +0200
Subject: [vtkusers] question about vtkImageFlip
Message-ID: <416100D4.6090303@yahoo.it>

Hello

I'd like to know why I can get a pointer to the scalar in a vtkImageData 
with method imageData->GetScalarPointer(0,0,0), but I can't get it after 
I flip that with vtkImageFlip->GetOutput()->GetScalarPointer(0,0,0)

Thanks in advance


From goodwin.lawlor at ucd.ie  Mon Oct  4 06:50:26 2004
From: goodwin.lawlor at ucd.ie (Goodwin Lawlor)
Date: Mon, 4 Oct 2004 11:50:26 +0100
Subject: [vtkusers] Re: question about vtkImageFlip
References: <416100D4.6090303@yahoo.it>
Message-ID: <00b601c4a9ff$f5356b90$0e01a8c0@Renasci>

Try:
vtkImageFlip->Update();
before you get the output.
hth

Goodwin
----- Original Message ----- 
From: "francesco caruso" <guernika_devel at yahoo.it>
Newsgroups: gmane.comp.lib.vtk.user
Sent: Monday, October 04, 2004 8:50 AM
Subject: question about vtkImageFlip


> Hello
>
> I'd like to know why I can get a pointer to the scalar in a vtkImageData
> with method imageData->GetScalarPointer(0,0,0), but I can't get it after
> I flip that with vtkImageFlip->GetOutput()->GetScalarPointer(0,0,0)
>
> Thanks in advance
> _______________________________________________
> This is the private VTK discussion list.
> Please keep messages on-topic. Check the FAQ at:
<http://public.kitware.com/cgi-bin/vtkfaq>
> Follow this link to subscribe/unsubscribe:
> http://www.vtk.org/mailman/listinfo/vtkusers
>



From Rupert.Shute at awe.co.uk  Mon Oct  4 04:36:38 2004
From: Rupert.Shute at awe.co.uk (Rupert Shute)
Date: Mon, 4 Oct 2004 09:36:38 +0100 
Subject: [vtkusers] VolumePro on VTK Linux
Message-ID: <JAR20985@awe.co.uk>

Hi Matt,
	I found using the VolumePro card with VTK to be relatively straight
forward. However, there is little development taking place in this area
which means that many of the functionalities of the card are not accessible
via VTK. As far as I'm aware there is only VTK/VP support for structured
data. Perhaps someone else could comment?

Regards
Rupert

-----Original Message-----
From: Matthew J. Turk [mailto:mturk at slac.stanford.edu] 
Sent: 01 October 2004 01:22
To: Rupert.Shute at awe.co.uk
Subject: EXTERNAL: VolumePro on VTK Linux


Hi there!  I saw you posted a message a while back about your 
experiences with the VolumePro 1000 on linux with the VTK toolkit.  I 
was wondering if I could ask you a few questions?

-- Is the VTK support drop-in, or is a large amount of restructuring in 
the code needed?
-- Does the VolumePro 1000 support volume rendering on all of VTK's 
types? -- i.e., we're looking at using vtk for AMR data with the 
vtkAMRbox or vtkHierarchicalBox classes, and we were wondering if we'd 
be able to utilize the VP for that task.

Thanks!

Matt Turk
Stanford University Physics Dep't
--
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From sscomp2004 at yahoo.com.au  Mon Oct  4 07:56:39 2004
From: sscomp2004 at yahoo.com.au (s comp)
Date: Mon, 4 Oct 2004 21:56:39 +1000 (EST)
Subject: [vtkusers] vtkConvexPointSet problems
Message-ID: <20041004115639.65181.qmail@web61105.mail.yahoo.com>

Hi, I am using some cells of type vtkConvexPointSet, but it seems that most  tools (except isosurfaces) dont work with this sort of cell (or at least most that I've tried). I am using precompiled windows binaries, vtk 4.2, I would rather not update right now, but would if this problem has been fixed, so has it?
 
If not, how can I convert the ConvexPointSet to tetrahedra. this should be possible since it does this internally anyway.
 
Otherwise how can I manually triangulate a set of points into tetrahedra with vtk, (or something else)?
 
Many thanks for any help,
 
Sonam
 
 



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From goodwin.lawlor at ucd.ie  Mon Oct  4 08:47:24 2004
From: goodwin.lawlor at ucd.ie (Goodwin Lawlor)
Date: Mon, 4 Oct 2004 13:47:24 +0100
Subject: [vtkusers] Re: picking twice on imageactor? -- CORRECTION
Message-ID: <001c01c4aa10$4c0c4e10$0e01a8c0@Renasci>

Hi Maitland,

This has been a bug in the tcl bindings to vtkTk(ImageViewer/Render)Widget
for a while... see this bug report
http://www.vtk.org/Bug/bug.php?op=show&bugid=637&pos=0. The problem is that
a VTK CharEvent is being fired on each tcl KeyPress and KeyRelease event.

There is a patch in the bug report against
/vtk/wrapping/vtkinteraction/bindings.tcl that corrects the bug. It changes
the behaviour to only fire a CharEvent on a KeyPress.

hth

Goodwin

"Lederer, Maitland" <mlederer at foster-miller.com> wrote in message
news:948A5EDF684ECD4A94C5120EABD66CA903549EE8 at b1srvmail.foster-miller.com...
Hey all-

I'm a big fat liar.  vtkPropPicker doesn't do anything when I try to
pick on parts of the space without Props.

My guess is that it's picking the front and back surfaces of the
ImageActor.  Is there a way to keep it from doing this?

Thanks,
-m

-----Original Message-----
From: Lederer, Maitland
Sent: Friday, October 01, 2004 12:47 PM
To: vtkusers at vtk.org
Subject: [vtkusers] picking twice on imageactor?

Hey all-

I'm using a vtkPropPicker to pick on some vtkImageActors.  The
interesting thing is that when I use the keypress-p to pick, it calls
the proc associated with the pick event (AddPointToPlane) twice,
apparently on two different, but close points.  It does this even when I
click on parts of the space that have no props.  It does *not* call the
proc twice when i use the vtkPropPicker->Pick command.  And yes, I am
really really certain that I'm not hitting the 'p' key twice.  :)

vtkPropPicker picker
picker AddObserver PickEvent AddPointToPlane

Any ideas?

Thanks,
-m

**************************
M. Maitland Lederer
Staff Engineer
Foster-Miller, Inc.
(781)684-4618


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From mathieu.malaterre at kitware.com  Mon Oct  4 09:17:53 2004
From: mathieu.malaterre at kitware.com (Mathieu Malaterre)
Date: Mon, 04 Oct 2004 09:17:53 -0400
Subject: [vtkusers] MetaImage support
In-Reply-To: <563CBF90DCC3224184FE10F022533715C7A8E0@mtv-atc-010e--n.corp.sgi.com>
References: <563CBF90DCC3224184FE10F022533715C7A8E0@mtv-atc-010e--n.corp.sgi.com>
Message-ID: <41614D81.5060207@kitware.com>

Rocky,

	Please use:

http://www.vtk.org/doc/nightly/html/classvtkMetaImageReader.html

[read binary UNC meta image data

One of the formats for which a reader is already available in the 
toolkit is the MetaImage file format. This is a fairly simple yet 
powerful format consisting of a text header and a binary data section. 
The following instructions describe how you can write a MetaImage header 
for the data that you download from the BrainWeb page.

The minimal structure of the MetaImage header is the following:

NDims = 3 DimSize = 181 217 181 ElementType = MET_UCHAR ElementSpacing = 
1.0 1.0 1.0 ElementByteOrderMSB = False ElementDataFile = brainweb1.raw

NDims indicate that this is a 3D image. ITK can handle images of 
arbitrary dimension. DimSize indicates the size of the volume in pixels 
along each direction. ElementType indicate the primitive type used for 
pixels. In this case is "unsigned char", implying that the data is 
digitized in 8 bits / pixel. ElementSpacing indicates the physical 
separation between the center of one pixel and the center of the next 
pixel along each direction in space. The units used are millimeters. 
ElementByteOrderMSB indicates is the data is encoded in little or big 
endian order. You might want to play with this value when moving data 
between different computer platforms. ElementDataFile is the name of the 
file containing the raw binary data of the image. This file must be in 
the same directory as the header.

MetaImage headers are expected to have extension: ".mha" or ".mhd"

Once you write this header text file, it should be possible to read the 
image into your ITK based application using the itk::FileIOToImageFilter 
class.]

HTH
Mathieu

Rocky Rhodes wrote:
> I have used MetaIO headers for reading binary 3d image data files into itk.
> I assumed the vtkImageReader would know about this format as well, but it
> doesn't seem to.  I don't see anything in the documentation, but wondered if
> there was a vtk MetaIO image reader anywhere; or support for any similar
> format, where a small text header file contains a pointer to the file
> containing the raw binary data.  Nrrd headers are like this as well.  I was
> hopeful when I saw the vtk XML file formats, but didn't see any version of
> these that allowed the binary data to reside in separate files.
> 
> Thanks for the help.
> 
> 	Rocky
> 
> _______________________________________________
> This is the private VTK discussion list. 
> Please keep messages on-topic. Check the FAQ at: <http://public.kitware.com/cgi-bin/vtkfaq>
> Follow this link to subscribe/unsubscribe:
> http://www.vtk.org/mailman/listinfo/vtkusers
> 





From mathieu.malaterre at kitware.com  Mon Oct  4 09:18:49 2004
From: mathieu.malaterre at kitware.com (Mathieu Malaterre)
Date: Mon, 04 Oct 2004 09:18:49 -0400
Subject: [vtkusers] Latex annotation
In-Reply-To: <200410012350.35053.burlen@apollo.sr.unh.edu>
References: <200410012350.35053.burlen@apollo.sr.unh.edu>
Message-ID: <41614DB9.3000002@kitware.com>

Burlen Loring wrote:
> Hi, does anyone have any method to use latex for 2d/3d annotation in VTK?

Hum, I would have done the contrary: export it into ps /eps then add it 
to my latex document. What are you trying to achieve ?

thanks
Mathieu




From mathieu.malaterre at kitware.com  Mon Oct  4 09:21:06 2004
From: mathieu.malaterre at kitware.com (Mathieu Malaterre)
Date: Mon, 04 Oct 2004 09:21:06 -0400
Subject: [vtkusers] VTK4.2 CD
In-Reply-To: <Pine.LNX.4.44.0410031719280.12515-100000@hal>
References: <Pine.LNX.4.44.0410031719280.12515-100000@hal>
Message-ID: <41614E42.7000002@kitware.com>

Weiguang,

	This is a known problem in VTK 4.2.3 could you please update your VTK 
version using the one from (latest VTK 4.2.x is 4.2.6):

http://vtk.org/get-software.php#release

This will fix your problem

Thanks
Mathieu


Weiguang Guan wrote:
> Hi,
> 
> We bought vtk books (user guide and visualization toolkit) a few months
> ago. Recently I was trying to install it on both linux and windows from
> the CD that comes with the books. The version is 4.2. After cmake, the
> generated Makefile doesn't include three classes (vtkPushImageFilterSample
> vtkPushImageReader vtkPushPipeline) for libHybrid.a. Building it on 
> windows has the same problem. Does anyone know how this could happen?
> 
> Weiguang
> 





From xiaopingzheng at gmail.com  Mon Oct  4 09:35:31 2004
From: xiaopingzheng at gmail.com (Xiaoping Zheng)
Date: Mon, 4 Oct 2004 14:35:31 +0100
Subject: [vtkusers] Anything removed in the new edition of the book "The
	Visualization Toolkit An Object-Oriented Approach To 3D Graphics"
Message-ID: <cc344bf00410040635591bd9b1@mail.gmail.com>

Hi,
The 2nd edition of this book has more than 600 pages, but the new book
is much thiner. Since new content must have been added into the new
edition,
why did it become smaller?
 
Would you tell me which edition I should buy and why?
Or can I get every thing in the book from the examples, tutorials in Internet?
 
Thank you very much.


From maricantalejo at gmail.com  Mon Oct  4 10:10:56 2004
From: maricantalejo at gmail.com (Mari Cantalejo)
Date: Mon, 4 Oct 2004 16:10:56 +0200
Subject: [vtkusers] Web visualization of VTK models
Message-ID: <f7dd2bc104100407101870962@mail.gmail.com>

Hi!

I have to do a web interface for a project that works with medical
images using VTK from C++.

The objective is to use as much as possible the existing C++ code.

The web page has to allow visualitzation of models and let the user to
rotate, zoom or do other simple operations. Then

collect the parameters of the operation that the user wants to do from
a web form, and send the model to the server with the

parameters, and execute an existing C++ program to process the model.
This program will generate another model, and this

model has to be returned to the web client for visualitzation.

I have been looking for information about this and I would like to
know what you recommend for the web visualization: VRML or

Java using Java3D. I think Java allows to do more things that VRML.

In the case to use Java, are there already made applets to use them?
And if they aren't, do you know if it's easy to

implement them? I also have been reading about EAI, can anyone tell me
some experiences about it?


A lot of thanks in advance.


From fdech at uchicago.edu  Mon Oct  4 10:39:17 2004
From: fdech at uchicago.edu (Fred Dech)
Date: Mon, 4 Oct 2004 09:39:17 -0500
Subject: [vtkusers] looking for declaration of GetSpacing.
Message-ID: <20041004143917.GJ22546@bullet.uchicago.edu>

hi.

i spent a good time hunting for declarations of GetSpacing last week and
was baffled at my inability to track it down in any of the source
directories.

can someone tell me where it is initially declared for, say, vtkImageData?

thanks.

--fred



From julien.alizier at free.fr  Mon Oct  4 10:52:57 2004
From: julien.alizier at free.fr (Julien Alizier (free.fr))
Date: Mon, 4 Oct 2004 16:52:57 +0200
Subject: [vtkusers] looking for declaration of GetSpacing.
References: <20041004143917.GJ22546@bullet.uchicago.edu>
Message-ID: <001301c4aa21$d6c194f0$0100a8c0@totoro>

Hi,

It is declared in vtkImageData.h through a macro :

  vtkGetVector3Macro(Spacing,double);

-- Julien



----- Original Message ----- 
From: "Fred Dech" <fdech at uchicago.edu>
To: "VTK" <vtkusers at vtk.org>
Sent: Monday, October 04, 2004 4:39 PM
Subject: [vtkusers] looking for declaration of GetSpacing.


> hi.
>
> i spent a good time hunting for declarations of GetSpacing last week and
> was baffled at my inability to track it down in any of the source
> directories.
>
> can someone tell me where it is initially declared for, say, vtkImageData?
>
> thanks.
>
> --fred
>
> _______________________________________________
> This is the private VTK discussion list.
> Please keep messages on-topic. Check the FAQ at:
<http://public.kitware.com/cgi-bin/vtkfaq>
> Follow this link to subscribe/unsubscribe:
> http://www.vtk.org/mailman/listinfo/vtkusers
>




From fdech at uchicago.edu  Mon Oct  4 11:23:25 2004
From: fdech at uchicago.edu (Fred Dech)
Date: Mon, 4 Oct 2004 10:23:25 -0500
Subject: [vtkusers] looking for declaration of GetSpacing.
In-Reply-To: <001301c4aa21$d6c194f0$0100a8c0@totoro>
References: <20041004143917.GJ22546@bullet.uchicago.edu>
	<001301c4aa21$d6c194f0$0100a8c0@totoro>
Message-ID: <20041004152325.GM22546@bullet.uchicago.edu>

sneaky.
thanks a lot, Julien!

--fred

On Mon, Oct 04, 2004 at 04:52PM, Julien Alizier (free.fr) said:
> Hi,
> 
> It is declared in vtkImageData.h through a macro :
> 
>   vtkGetVector3Macro(Spacing,double);
> 
> -- Julien
> 
> 
> 
> ----- Original Message ----- 
> From: "Fred Dech" <fdech at uchicago.edu>
> To: "VTK" <vtkusers at vtk.org>
> Sent: Monday, October 04, 2004 4:39 PM
> Subject: [vtkusers] looking for declaration of GetSpacing.
> 
> 
> > hi.
> >
> > i spent a good time hunting for declarations of GetSpacing last week and
> > was baffled at my inability to track it down in any of the source
> > directories.
> >
> > can someone tell me where it is initially declared for, say, vtkImageData?
> >
> > thanks.
> >
> > --fred
> >


From Charles.Boivin at rwdiwest.com  Mon Oct  4 12:42:33 2004
From: Charles.Boivin at rwdiwest.com (Charles Boivin)
Date: Mon, 04 Oct 2004 10:42:33 -0600
Subject: [vtkusers] Destructor and vector
Message-ID: <s1612938.053@mailwest.rwdiwest.com>

Hello Sean,

Thanks for letting me in on this. I must admit that, aside from knowing
that VTK internally had a reference count and was enforcing that count
through the use of the New() and Delete() member functions, I had no
idea how everything was really working. Your explanation helps shed some
light on the topic.

I like the idea of an internal reference count... and I've always
disliked the fact that it was very easy to leak memory through the use
of the STL by forgetting to delete each pointer in an STL container
before clearing it. This is also sometimes very hard to track properly.
The example you gave with vtkSmartPointer pretty much gets rid of that.
Great stuff! I knew there must have been a safer way of doing things
that what I was doing.. Nice to know.

It's nice to be in touch with people who are obviously way more
experienced with C++ than myself. It's a great way to learn. Thanks a
lot for your time and effort. I hope it helped vent out your
frustrations.. ;-)

Charles

>>> Sean McInerney <seanm at nmr.mgh.harvard.edu> 09/30/04 09:31pm >>>
Hi Jerome,

Let me apologize in advance for the overly nerdy explanation that 
follows ... but I believe that it's correct ... maybe it's a Wiki 
candidate???

The STL provides value semantics while VTK objects are dealt with 
exclusively via reference semantics (VTK enforces this by leaving the 
copy constructor and assignment operator of its objects unimplemented).

Thankfully, VTK already provides vtkSmartPointer for use with such 
templated container types. It is a "wrapper class" that implements 
reference semantics for the STL and similar containers. Basically, 
vtkSmartPointer grafts VTK's reference counting scheme into templated 
container classes (list, vector, stack, etc.) so that vtkObjects can be

dealt with just as they are in a vtkCollection. vtkSmartPointer assures

that a vtkObject's reference count is incremented upon its addition to
a 
container and decremented on removal. Proper use of vtkSmartPointer 
makes it easier to prevent an object's reference count being
decremented 
to zero (and its subsequent destruction) happening while a pointer to 
that object is still held within a container.

So ... let's say that you want a vector of vtkPlaneSources ...

// Handy typedefs for brevity (vector is in the vtkstd:: namespace)
typedef vtkSmartPointer<vtkPlaneSource>    vtkPlaneSourceRef;
typedef vtkstd::vector<vtkPlaneSourceRef>  vtkPlaneSourceVector;

{
   // Create the container.
   vtkPlaneSourceVector vec;
   // Create objects destined for the container.
   vtkPlaneSource* planeSource1 = vtkPlaneSource::New();
   vtkPlaneSource* planeSource2 = vtkPlaneSource::New();

   // Push the objects into the container wrapped in smart pointers.
   vec.push_back(vtkPlaneSourceRef(planeSource1));
   vec.push_back(vtkPlaneSourceRef(planeSource2));

   // Decrement the sources' ref counts ... the vector now "owns"
them!
   planeSource1->Delete(); // Ref count is now 1.
   planeSource2->Delete(); // Ref count is now 1.

   // Do something ... like iterate over the container ...
   for ( vtkPlaneSourceVector::iterator pos = vec.begin();
         pos != vec.end(); ++pos )
     {
     // Yeah, I know the added indirection of 'GetPointer()' is
     // ugly, but it's a small price to pay. If you're STL-savvy,
     // you've probably dispensed with petty aesthetic
     // considerations anyway.
     pos->GetPointer()->Print(cerr);
     }

   // Pop the plane source from the back of the container.
   vec.pop_back(); // 'planeSource2' destructs upon its removal.

   // 'vec' destructs as it goes out of scope *AND* so does
   // 'planeSource1' which is still held by the container!
   // No loose ends to worry about!
}


Ah yes, working out my presidential debate frustrations with a little 
soothing VTK fun.

-Sean

Charles Boivin wrote:
> Bonjour Jerome,
> 
> Although I have never done it with vtkPlaneSource specifically, I
use
> the STL with VTK objects... For example, you could have a vector of
> pointers to vtkPlaneSource objects like so:
> 
> std::vector< vtkPlaneSource* > vecPlaneSources;
> 
> Just make sure to instantiate things properly with the
> vtkPlaneSource::New() function before pushing them on the vector,
and
> also, remember to call vtkPlaneSource::Delete() for each item in the
> vector before clearing it. 
> 
> I do just that with other VTK objects.. works fine for me. I'd be
> interested to hear if there are any potential dangers associated
with
> this use of the STL from some of the VTK and C++ gurus on this
mailing
> list, however.
> 
> Hope that helps,
> 
> Charles Boivin
> 
> 
>>>>J?r?me Lecoq <jerome.lecoq at espci.fr> 09/30/04 08:52am >>>
> 
> I guess I found myself the answear.
> the vector are simply not implemented in vtk... But will be in the
> future
> releases.
> 
> http://public.kitware.com/cgi-bin/vtkfaq?req=show&file=faq06.011.htp

> :
> "Further integration of STL and other important C++ constructs (like
> templates)" in Roadmap: What changes are being considered for VTK
> 
> and in vtkPlaneSource.h
> "
> vtkPlaneSource(const vtkPlaneSource&);  // Not implemented.
>   void operator=(const vtkPlaneSource&);  // Not implemented."
> 
> declaration which are needed to use vector, list, stack and so on...
> 
> I'll have to find another solution...

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From kerekes at fastmail.fm  Mon Oct  4 13:42:10 2004
From: kerekes at fastmail.fm (Kate Kerekes)
Date: Mon, 4 Oct 2004 13:42:10 -0400
Subject: [vtkusers] VTK4.2 CD
In-Reply-To: <41614E42.7000002@kitware.com>
Message-ID: <001601c4aa39$7a955000$0300a8c0@kerekeslaptop>

Are there any other known problems with the version of vtk on the cd?  I
installed the binary version from the cd thinking that this would be the
most stable version for windows.

I am also having problems with the vtkImageReader2 and the time it takes to
read a file.  Would upgrading to the newest version of vtk fix this problem?

Thanks,
Kate Kerekes

-----Original Message-----
From: vtkusers-bounces at vtk.org [mailto:vtkusers-bounces at vtk.org] On Behalf
Of Mathieu Malaterre
Sent: Monday, October 04, 2004 9:21 AM
To: Weiguang Guan
Cc: vtkusers at vtk.org
Subject: Re: [vtkusers] VTK4.2 CD

Weiguang,

	This is a known problem in VTK 4.2.3 could you please update your
VTK 
version using the one from (latest VTK 4.2.x is 4.2.6):

http://vtk.org/get-software.php#release

This will fix your problem

Thanks
Mathieu


Weiguang Guan wrote:
> Hi,
> 
> We bought vtk books (user guide and visualization toolkit) a few months
> ago. Recently I was trying to install it on both linux and windows from
> the CD that comes with the books. The version is 4.2. After cmake, the
> generated Makefile doesn't include three classes (vtkPushImageFilterSample
> vtkPushImageReader vtkPushPipeline) for libHybrid.a. Building it on 
> windows has the same problem. Does anyone know how this could happen?
> 
> Weiguang
> 



_______________________________________________
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Please keep messages on-topic. Check the FAQ at:
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From mathieu.malaterre at kitware.com  Mon Oct  4 14:29:25 2004
From: mathieu.malaterre at kitware.com (Mathieu Malaterre)
Date: Mon, 04 Oct 2004 14:29:25 -0400
Subject: [vtkusers] VTK4.2 CD
In-Reply-To: <001601c4aa39$7a955000$0300a8c0@kerekeslaptop>
References: <001601c4aa39$7a955000$0300a8c0@kerekeslaptop>
Message-ID: <41619685.2010501@kitware.com>

Kate,

 > Are there any other known problems with the version of vtk on the cd?

No absolutely not. Why are you saying

'I am also having'
       ^^^^

What does it have to do with an installation problem ?

As a side note, I ran on my linux box this c++ code(*), the reading of a 
512x512x512 unsigned short image took less than 3s:

./bench  1.19s user 1.77s system 101% cpu 2.923 total

Using VTK compiled in *debug* mode with no optimization using gcc 3.3

HTH
Mathieu

(*)
#include "vtkImageNoiseSource.h"
#include "vtkImageReader2.h"
#include "vtkImageWriter.h"
#include "vtkImageData.h"
#include "vtkImageCast.h"

void gen()
{
   vtkImageNoiseSource *noise = vtkImageNoiseSource::New();
   noise->SetWholeExtent(0,511,0,511,0,511);
   noise->SetMinimum(0.0);
   noise->SetMaximum(1.0);
   noise->ReleaseDataFlagOff();
   noise->Update();

   noise->GetOutput()->Print( cout );

   vtkImageCast *cast = vtkImageCast::New();
   cast->SetInput( noise->GetOutput() );
   cast->SetOutputScalarTypeToUnsignedShort ();

   vtkImageWriter *writer = vtkImageWriter::New();
   //writer->SetInput( noise->GetOutput () );
   writer->SetInput( cast->GetOutput () );
   writer->SetFileDimensionality (3);
   writer->SetFileName( "bench.img" );
   writer->Write();

   noise->Delete();
   cast->Delete();
   writer->Delete();

}

int main()
{
   //gen();

   vtkImageReader2 *reader = vtkImageReader2::New();
   reader->SetDataExtent (0, 511, 0, 511, 0, 511 );
   reader->SetDataScalarTypeToUnsignedShort();
   reader->SetDataByteOrderToLittleEndian();
   reader->SetFileName( "bench.img" );
   reader->Update();

   reader->GetOutput()->Print ( cout );

   reader->Delete();

   return 0;
}



Kate Kerekes wrote:
> Are there any other known problems with the version of vtk on the cd?  I
> installed the binary version from the cd thinking that this would be the
> most stable version for windows.
> 
> I am also having problems with the vtkImageReader2 and the time it takes to
> read a file.  Would upgrading to the newest version of vtk fix this problem?
> 
> Thanks,
> Kate Kerekes
> 
> -----Original Message-----
> From: vtkusers-bounces at vtk.org [mailto:vtkusers-bounces at vtk.org] On Behalf
> Of Mathieu Malaterre
> Sent: Monday, October 04, 2004 9:21 AM
> To: Weiguang Guan
> Cc: vtkusers at vtk.org
> Subject: Re: [vtkusers] VTK4.2 CD
> 
> Weiguang,
> 
> 	This is a known problem in VTK 4.2.3 could you please update your
> VTK 
> version using the one from (latest VTK 4.2.x is 4.2.6):
> 
> http://vtk.org/get-software.php#release
> 
> This will fix your problem
> 
> Thanks
> Mathieu
> 
> 
> Weiguang Guan wrote:
> 
>>Hi,
>>
>>We bought vtk books (user guide and visualization toolkit) a few months
>>ago. Recently I was trying to install it on both linux and windows from
>>the CD that comes with the books. The version is 4.2. After cmake, the
>>generated Makefile doesn't include three classes (vtkPushImageFilterSample
>>vtkPushImageReader vtkPushPipeline) for libHybrid.a. Building it on 
>>windows has the same problem. Does anyone know how this could happen?
>>
>>Weiguang
>>
> 
> 
> 
> 
> _______________________________________________
> This is the private VTK discussion list. 
> Please keep messages on-topic. Check the FAQ at:
> <http://public.kitware.com/cgi-bin/vtkfaq>
> Follow this link to subscribe/unsubscribe:
> http://www.vtk.org/mailman/listinfo/vtkusers
> 
> 





From baghdadi at sickkids.ca  Mon Oct  4 14:31:00 2004
From: baghdadi at sickkids.ca (Leila Baghdadi)
Date: 04 Oct 2004 14:31:00 -0400
Subject: [vtkusers] VTK4.2 CD
In-Reply-To: <001601c4aa39$7a955000$0300a8c0@kerekeslaptop>
References: <001601c4aa39$7a955000$0300a8c0@kerekeslaptop>
Message-ID: <1096914660.1000.32.camel@mouse18.phenogenomics.ca>


Kate,

I am not sure about the known problems with the CD version of vtk as I
personally never used those CDs even though I have purchased the new
editions of the books,

I think the best way to tackle this is to make sure that you maintain a
copy of the cvs version of vtk after making sure that the dashboard is
green on your machine,

as you know changes are constantly committed to cvs so it is nearly
impossible to keep the CDs that come with the book updated!

HTH

Leila
On Mon, 2004-10-04 at 13:42, Kate Kerekes wrote:
> Are there any other known problems with the version of vtk on the cd?  I
> installed the binary version from the cd thinking that this would be the
> most stable version for windows.
> 
> I am also having problems with the vtkImageReader2 and the time it takes to
> read a file.  Would upgrading to the newest version of vtk fix this problem?
> 
> Thanks,
> Kate Kerekes
> 
> -----Original Message-----
> From: vtkusers-bounces at vtk.org [mailto:vtkusers-bounces at vtk.org] On Behalf
> Of Mathieu Malaterre
> Sent: Monday, October 04, 2004 9:21 AM
> To: Weiguang Guan
> Cc: vtkusers at vtk.org
> Subject: Re: [vtkusers] VTK4.2 CD
> 
> Weiguang,
> 
> 	This is a known problem in VTK 4.2.3 could you please update your
> VTK 
> version using the one from (latest VTK 4.2.x is 4.2.6):
> 
> http://vtk.org/get-software.php#release
> 
> This will fix your problem
> 
> Thanks
> Mathieu
> 
> 
> Weiguang Guan wrote:
> > Hi,
> > 
> > We bought vtk books (user guide and visualization toolkit) a few months
> > ago. Recently I was trying to install it on both linux and windows from
> > the CD that comes with the books. The version is 4.2. After cmake, the
> > generated Makefile doesn't include three classes (vtkPushImageFilterSample
> > vtkPushImageReader vtkPushPipeline) for libHybrid.a. Building it on 
> > windows has the same problem. Does anyone know how this could happen?
> > 
> > Weiguang
> > 
> 
> 
> 
> _______________________________________________
> This is the private VTK discussion list. 
> Please keep messages on-topic. Check the FAQ at:
> <http://public.kitware.com/cgi-bin/vtkfaq>
> Follow this link to subscribe/unsubscribe:
> http://www.vtk.org/mailman/listinfo/vtkusers
> 
> _______________________________________________
> This is the private VTK discussion list. 
> Please keep messages on-topic. Check the FAQ at: <http://public.kitware.com/cgi-bin/vtkfaq>
> Follow this link to subscribe/unsubscribe:
> http://www.vtk.org/mailman/listinfo/vtkusers



From aylward at unc.edu  Mon Oct  4 16:14:46 2004
From: aylward at unc.edu (Stephen R. Aylward)
Date: Mon, 04 Oct 2004 16:14:46 -0400
Subject: [vtkusers] Research Assistant and Visiting Scholar Positions
	Available
Message-ID: <4161AF36.6030209@unc.edu>


The Computer-Aided Diagnosis and Display Laboratory (CADDLab) in the 
Department of Radiology at the University of North Carolina at Chapel 
Hill has positions available for research assistants and visiting scholars.

For details regarding our research, visit our web site at
http://caddlab.rad.unc.edu

Research Assistants: Qualified research assistant applicants will have 
outstanding C++ programming skills, the ability to work with others, and 
strong self-motivation. Experience with image analysis, computer 
graphics, the NLM's Insight Toolkit, or Kitware's Visualization Toolkit 
(VTK) is a plus. Applicants should have an MS in computer science or 
related program or exceptional practical experience.

Visiting Scholars: The scholars would immerse themselves in the Insight 
Toolkit (http://www.itk.org) and participate on an applied medical image 
analysis research project.  Multiple research topics are available and 
can be adapted to the scholars' interests.

If you are interested, please send your CV and a list of three 
references to me,
Stephen Aylward
aylward at unc.edu

Thanks,
Stephen

===========================================================
Dr. Stephen R. Aylward
Associate Professor of Radiology
Adjunct Associate Professor of Computer Science and Surgery
http://caddlab.rad.unc.edu
aylward at unc.edu
(919) 966-9695



From seanm at nmr.mgh.harvard.edu  Mon Oct  4 16:05:09 2004
From: seanm at nmr.mgh.harvard.edu (Sean McInerney)
Date: Mon, 04 Oct 2004 16:05:09 -0400
Subject: [vtkusers] VTK4.2 CD
In-Reply-To: <41619685.2010501@kitware.com>
References: <001601c4aa39$7a955000$0300a8c0@kerekeslaptop>
	<41619685.2010501@kitware.com>
Message-ID: <4161ACF5.5090406@nmr.mgh.harvard.edu>

Kate,

   Are you reading your data from a slow storage device like a CD, Zip 
drive, or a USB hard disk? Since there are no big computational 
bottlenecks for your read, I am guessing that your storage device is the 
culprit. Reading ~268Mb of data will take a perceptible amount of time 
even with fast IDE or SCSI disks ... but not more than a few seconds ... 
*displaying* these data is another story! You'll need a fast machine to 
contour or volume render these data with any degree of interactivity.

   You could try profiling your code (you'll need to compile VTK for 
profiling as well). If you don't know how to do this, don't worry ... 
given Mathieu's results, I doubt that your problem is CPU bound.

-Sean

Mathieu Malaterre wrote:
> Kate,
> 
>  > Are there any other known problems with the version of vtk on the cd?
> 
> No absolutely not. Why are you saying
> 
> 'I am also having'
>       ^^^^
> 
> What does it have to do with an installation problem ?
> 
> As a side note, I ran on my linux box this c++ code(*), the reading of a 
> 512x512x512 unsigned short image took less than 3s:
> 
> ./bench  1.19s user 1.77s system 101% cpu 2.923 total
> 
> Using VTK compiled in *debug* mode with no optimization using gcc 3.3
> 
> HTH
> Mathieu
> 
> (*)
> #include "vtkImageNoiseSource.h"
> #include "vtkImageReader2.h"
> #include "vtkImageWriter.h"
> #include "vtkImageData.h"
> #include "vtkImageCast.h"
> 
> void gen()
> {
>   vtkImageNoiseSource *noise = vtkImageNoiseSource::New();
>   noise->SetWholeExtent(0,511,0,511,0,511);
>   noise->SetMinimum(0.0);
>   noise->SetMaximum(1.0);
>   noise->ReleaseDataFlagOff();
>   noise->Update();
> 
>   noise->GetOutput()->Print( cout );
> 
>   vtkImageCast *cast = vtkImageCast::New();
>   cast->SetInput( noise->GetOutput() );
>   cast->SetOutputScalarTypeToUnsignedShort ();
> 
>   vtkImageWriter *writer = vtkImageWriter::New();
>   //writer->SetInput( noise->GetOutput () );
>   writer->SetInput( cast->GetOutput () );
>   writer->SetFileDimensionality (3);
>   writer->SetFileName( "bench.img" );
>   writer->Write();
> 
>   noise->Delete();
>   cast->Delete();
>   writer->Delete();
> 
> }
> 
> int main()
> {
>   //gen();
> 
>   vtkImageReader2 *reader = vtkImageReader2::New();
>   reader->SetDataExtent (0, 511, 0, 511, 0, 511 );
>   reader->SetDataScalarTypeToUnsignedShort();
>   reader->SetDataByteOrderToLittleEndian();
>   reader->SetFileName( "bench.img" );
>   reader->Update();
> 
>   reader->GetOutput()->Print ( cout );
> 
>   reader->Delete();
> 
>   return 0;
> }
> 
> 
> 
> Kate Kerekes wrote:
> 
>> Are there any other known problems with the version of vtk on the cd?  I
>> installed the binary version from the cd thinking that this would be the
>> most stable version for windows.
>>
>> I am also having problems with the vtkImageReader2 and the time it 
>> takes to
>> read a file.  Would upgrading to the newest version of vtk fix this 
>> problem?
>>
>> Thanks,
>> Kate Kerekes
>>
>> -----Original Message-----
>> From: vtkusers-bounces at vtk.org [mailto:vtkusers-bounces at vtk.org] On 
>> Behalf
>> Of Mathieu Malaterre
>> Sent: Monday, October 04, 2004 9:21 AM
>> To: Weiguang Guan
>> Cc: vtkusers at vtk.org
>> Subject: Re: [vtkusers] VTK4.2 CD
>>
>> Weiguang,
>>
>>     This is a known problem in VTK 4.2.3 could you please update your
>> VTK version using the one from (latest VTK 4.2.x is 4.2.6):
>>
>> http://vtk.org/get-software.php#release
>>
>> This will fix your problem
>>
>> Thanks
>> Mathieu
>>
>>
>> Weiguang Guan wrote:
>>
>>> Hi,
>>>
>>> We bought vtk books (user guide and visualization toolkit) a few months
>>> ago. Recently I was trying to install it on both linux and windows from
>>> the CD that comes with the books. The version is 4.2. After cmake, the
>>> generated Makefile doesn't include three classes 
>>> (vtkPushImageFilterSample
>>> vtkPushImageReader vtkPushPipeline) for libHybrid.a. Building it on 
>>> windows has the same problem. Does anyone know how this could happen?
>>>
>>> Weiguang
>>>
>>
>>
>>
>>
>> _______________________________________________
>> This is the private VTK discussion list. Please keep messages 
>> on-topic. Check the FAQ at:
>> <http://public.kitware.com/cgi-bin/vtkfaq>
>> Follow this link to subscribe/unsubscribe:
>> http://www.vtk.org/mailman/listinfo/vtkusers
>>
>>
> 
> 
> 
> _______________________________________________
> This is the private VTK discussion list. Please keep messages on-topic. 
> Check the FAQ at: <http://public.kitware.com/cgi-bin/vtkfaq>
> Follow this link to subscribe/unsubscribe:
> http://www.vtk.org/mailman/listinfo/vtkusers
> 


From marshbur at cs.unc.edu  Mon Oct  4 19:08:12 2004
From: marshbur at cs.unc.edu (David Marshburn)
Date: Mon, 4 Oct 2004 19:08:12 -0400 (EDT)
Subject: [vtkusers] export 3D image data sampled along a spline
In-Reply-To: <20040930160010.A90722EF87@public.kitware.com>
References: <20040930160010.A90722EF87@public.kitware.com>
Message-ID: <Pine.LNX.4.58.0409301228050.19832@swan.cs.unc.edu>


I'm wondering about resampling a 3D image (vtkImageData or 
vtkImageToStructuredPoints) along some spline (vtkSplineWidget) and 
exporting the sampled values to a simple comma-separated-value text file 
that can be read by other, data-analysis applications.

I'm specifically wondering if I'm going about this in a reasonable "VTK 
way".  I'm somewhat new to VTK (I inherited from someone else the 
development of the application of which this is a part), and looking at 
the dozen or so classes was a lot for this seemingly simple piece of 
functionality.  I'd appreciate any comments or critiques, please, 
especially about the appropriate use of the various classes or suggestions 
for different ways to do this.

I include below a first-pass idea of how to do this.  The data values 
should be scalars.

Thank you for any assistance!

-David Marshburn



(this uses java-wrapped vtk 4.4)

public static boolean write( File file, vtkSplineWidget spline, vtkPolyDataMapper[] mappers )
throws IOException
{
	vtkProbeFilter[] probes = new vtkProbeFilter[ mappers.length ];
	vtkPolyData polyData = new vtkPolyData();
	spline.GetPolyData(polyData);
	vtkPointData[] pointData = new vtkPointData[ mappers.length ];
	
	// make a probe for each mapper
	for( int i = 0; i <= mappers.length - 1; i++ )
	{
		probes[i] = new vtkProbeFilter();
		probes[i].SetInput( polyData );
		probes[i].SetSource( mappers[i].GetInputAsDataSet() );
		
		pointData[i] = probes[i].GetOutput().GetPointData();
	}
	
	FileWriter out = new FileWriter( file );
	String line = "";

	// write column headers
	for( int i = 0; i <= mappers.length - 1; i++ )
	{
		line += ...
		line += "," + mappers[i].GetArrayName();
	}
	out.write( line );
	
	// write the position of and interpolated data value at each point
	for( int j = 0; j <= polyData.GetNumberOfCells() - 1; j++ )
	{
		line = "";
		// add the xyz position of the point
		double[] point = polyData.GetVerts().GetData().GetTuple3( j );
		line += ...

		// add the interpolated data value
		for( int i = 0; i <= mappers.length - 1; i++ )
		{
			line += ",";
			line += pointData[i].GetScalars().GetTuple1( 0 );
		}
		line += ...
		out.write( line );
	}
	out.flush();
	out.close();
	return true;
}


the vtkPolyDataMappers are all set up in a manner similar to the 
following:

		vtkImageToStructuredPoints colorSource;
		colorSource = new vtkImageToStructuredPoints();
		colorSource.SetInput( ... /* some vtkImageData */ );

		vtkProbeFilter colorProbe = new vtkProbeFilter();
		colorProbe.SetSource(colorSource.GetOutput());
		colorProbe.SetInput(planeFilt.GetOutput());
		
		vtkTransformPolyDataFilter colorFilt = new vtkTransformPolyDataFilter();
		colorFilt.SetInput((vtkPolyData) colorProbe.GetOutput());

		colorPlaneMapper = new vtkPolyDataMapper();
		colorPlaneMapper.SetInput(colorFilt.GetOutput());




From rhodes at sgi.com  Mon Oct  4 19:42:03 2004
From: rhodes at sgi.com (Rocky Rhodes)
Date: Mon, 4 Oct 2004 16:42:03 -0700 
Subject: [vtkusers] VTK-4.4 Histogram.Tcl Example and missing method
Message-ID: <563CBF90DCC3224184FE10F022533715C7A8EA@mtv-atc-010e--n.corp.sgi.com>

I just downloaded and built the 4.4 release and tried running the example
Histogram.tcl from the Examples/ImageProcessing/Tcl directory.  I get an
error complaining that the method "GetScalarComponentAsFloat" could not be
found.  I confirmed that there was such a method in the vtkImageData.cxx
file in the Common subdirectory in the 4.2 release, but this file does not
contain this method in the 4.4 version of the code.

The latest version of the Common directory doesn't contain this file.

I'm wondering what my best option is at this point.  I wanted to use
something newer than 4.2, because I was looking for a release with support
for the MetaImage file format, but would rather use a stable release than a
nightly build.  The Histogram example was close to one little bit of
functionality I I wanted to play with, so I started my investigation there.

Thanks for the help.

	Rocky



From Christopher.Moore at noaa.gov  Mon Oct  4 21:13:21 2004
From: Christopher.Moore at noaa.gov (Christopher.Moore at noaa.gov)
Date: Mon, 4 Oct 2004 18:13:21 -0700 (PDT)
Subject: [vtkusers] vtkLODProp3D crashes java
Message-ID: <Pine.LNX.4.44.0410041800500.353-100000@kingfisher.pmel.noaa.gov>


When the actors exceed a certain number of polygons (> approx 70,000 for 
full LOD), vtkLODProp3D crashes my java application when rendering, with 
the following error:

 
An unexpected exception has been detected in native code outside the VM.
Unexpected Signal : 11 occurred at PC=0x4E8493AD
Function=_ZN20vtkDataSetAttributes9CopyTupleEP12vtkDataArrayS1_ii+0x429
Library=/usr/local/vtk4.2/bin/libvtkCommonJava.so
 
When I add the actors directly to the scene without using the vtkLODProp3D 
there are no problems.

RH9.0, vtk4.2, java1.4.2

Any ideas?  The LOD makes my application much more interactive, so I'd 
like to keep it...

I noticed that ParaView does LOD in a slightly different way (it claims 
vtkLODProp3D can get "confused")?

Cheers,
Chris Moore
UW - Seattle
NOAA/PMEL



From kerekes at fastmail.fm  Mon Oct  4 22:38:39 2004
From: kerekes at fastmail.fm (Kate Kerekes)
Date: Mon, 4 Oct 2004 22:38:39 -0400
Subject: [vtkusers] VTK4.2 CD
In-Reply-To: <4161ACF5.5090406@nmr.mgh.harvard.edu>
Message-ID: <000001c4aa84$6c9eadc0$0300a8c0@kerekeslaptop>

I am reading data from an IDE disk.  Here is a sample timing tcl code that I
wrote to test it:

###############################
#!/bin/sh
load vtkCommonTCL.dll
load vtkFilteringTCL.dll
load vtkGraphicsTCL.dll
load vtkIOTCL.dll
load vtkImagingTCL.dll
load vtkRenderingTCL.dll
load vtkHybridTCL.dll
source Interactor.tcl
source bindings-rw.tcl
source bindings-iw.tcl
source bindings.tcl
source setget.tcl

console show
set time1 [clock clicks -milliseconds]
vtkImageReader2 reader
[reader GetOutput] ReleaseDataFlagOn
	reader SetDataExtent 0 511 0 511 0 511 
	reader SetDataScalarTypeToShort
	reader SetDataByteOrderToLittleEndian
	reader SetFilePrefix "C:\\mouse512\\"
	reader SetFilePattern "%s%.4d.slice"

reader Update
set time2 [clock clicks -milliseconds]
puts "time=[expr ($time2*1.0-$time1*1.0)/1000] seconds"
###########################

using this time code it takes 42 seconds to load my data.  The only
difference I see in my tcl code and Mathieu's c code is that he is reading a
.img file that is 512x512x512 while I am reading a series of slices.  Would
that make any difference in time?  Also there is the obvious difference of
tcl code versus c code, but it can't be that much slower.

I tried to run Mathieu's C++ code, but got bogged down in Visual Studio
.NET.  I haven't worked with it for awhile and just installed it on this
machine and I can't get all of my libraries and include files set up
correctly.

kate

-----Original Message-----
From: Sean McInerney [mailto:seanm at nmr.mgh.harvard.edu] 
Sent: Monday, October 04, 2004 4:05 PM
To: Mathieu Malaterre
Cc: Kate Kerekes; vtkusers at vtk.org
Subject: Re: [vtkusers] VTK4.2 CD

Kate,

   Are you reading your data from a slow storage device like a CD, Zip 
drive, or a USB hard disk? Since there are no big computational 
bottlenecks for your read, I am guessing that your storage device is the 
culprit. Reading ~268Mb of data will take a perceptible amount of time 
even with fast IDE or SCSI disks ... but not more than a few seconds ... 
*displaying* these data is another story! You'll need a fast machine to 
contour or volume render these data with any degree of interactivity.

   You could try profiling your code (you'll need to compile VTK for 
profiling as well). If you don't know how to do this, don't worry ... 
given Mathieu's results, I doubt that your problem is CPU bound.

-Sean

Mathieu Malaterre wrote:
> Kate,
> 
>  > Are there any other known problems with the version of vtk on the cd?
> 
> No absolutely not. Why are you saying
> 
> 'I am also having'
>       ^^^^
> 
> What does it have to do with an installation problem ?
> 
> As a side note, I ran on my linux box this c++ code(*), the reading of a 
> 512x512x512 unsigned short image took less than 3s:
> 
> ./bench  1.19s user 1.77s system 101% cpu 2.923 total
> 
> Using VTK compiled in *debug* mode with no optimization using gcc 3.3
> 
> HTH
> Mathieu
> 
> (*)
> #include "vtkImageNoiseSource.h"
> #include "vtkImageReader2.h"
> #include "vtkImageWriter.h"
> #include "vtkImageData.h"
> #include "vtkImageCast.h"
> 
> void gen()
> {
>   vtkImageNoiseSource *noise = vtkImageNoiseSource::New();
>   noise->SetWholeExtent(0,511,0,511,0,511);
>   noise->SetMinimum(0.0);
>   noise->SetMaximum(1.0);
>   noise->ReleaseDataFlagOff();
>   noise->Update();
> 
>   noise->GetOutput()->Print( cout );
> 
>   vtkImageCast *cast = vtkImageCast::New();
>   cast->SetInput( noise->GetOutput() );
>   cast->SetOutputScalarTypeToUnsignedShort ();
> 
>   vtkImageWriter *writer = vtkImageWriter::New();
>   //writer->SetInput( noise->GetOutput () );
>   writer->SetInput( cast->GetOutput () );
>   writer->SetFileDimensionality (3);
>   writer->SetFileName( "bench.img" );
>   writer->Write();
> 
>   noise->Delete();
>   cast->Delete();
>   writer->Delete();
> 
> }
> 
> int main()
> {
>   //gen();
> 
>   vtkImageReader2 *reader = vtkImageReader2::New();
>   reader->SetDataExtent (0, 511, 0, 511, 0, 511 );
>   reader->SetDataScalarTypeToUnsignedShort();
>   reader->SetDataByteOrderToLittleEndian();
>   reader->SetFileName( "bench.img" );
>   reader->Update();
> 
>   reader->GetOutput()->Print ( cout );
> 
>   reader->Delete();
> 
>   return 0;
> }
> 
> 
> 
> Kate Kerekes wrote:
> 
>> Are there any other known problems with the version of vtk on the cd?  I
>> installed the binary version from the cd thinking that this would be the
>> most stable version for windows.
>>
>> I am also having problems with the vtkImageReader2 and the time it 
>> takes to
>> read a file.  Would upgrading to the newest version of vtk fix this 
>> problem?
>>
>> Thanks,
>> Kate Kerekes
>>
>> -----Original Message-----
>> From: vtkusers-bounces at vtk.org [mailto:vtkusers-bounces at vtk.org] On 
>> Behalf
>> Of Mathieu Malaterre
>> Sent: Monday, October 04, 2004 9:21 AM
>> To: Weiguang Guan
>> Cc: vtkusers at vtk.org
>> Subject: Re: [vtkusers] VTK4.2 CD
>>
>> Weiguang,
>>
>>     This is a known problem in VTK 4.2.3 could you please update your
>> VTK version using the one from (latest VTK 4.2.x is 4.2.6):
>>
>> http://vtk.org/get-software.php#release
>>
>> This will fix your problem
>>
>> Thanks
>> Mathieu
>>
>>
>> Weiguang Guan wrote:
>>
>>> Hi,
>>>
>>> We bought vtk books (user guide and visualization toolkit) a few months
>>> ago. Recently I was trying to install it on both linux and windows from
>>> the CD that comes with the books. The version is 4.2. After cmake, the
>>> generated Makefile doesn't include three classes 
>>> (vtkPushImageFilterSample
>>> vtkPushImageReader vtkPushPipeline) for libHybrid.a. Building it on 
>>> windows has the same problem. Does anyone know how this could happen?
>>>
>>> Weiguang
>>>
>>
>>
>>
>>
>> _______________________________________________
>> This is the private VTK discussion list. Please keep messages 
>> on-topic. Check the FAQ at:
>> <http://public.kitware.com/cgi-bin/vtkfaq>
>> Follow this link to subscribe/unsubscribe:
>> http://www.vtk.org/mailman/listinfo/vtkusers
>>
>>
> 
> 
> 
> _______________________________________________
> This is the private VTK discussion list. Please keep messages on-topic. 
> Check the FAQ at: <http://public.kitware.com/cgi-bin/vtkfaq>
> Follow this link to subscribe/unsubscribe:
> http://www.vtk.org/mailman/listinfo/vtkusers
> 



From mirelle_mellqvist at hotmail.com  Tue Oct  5 02:49:22 2004
From: mirelle_mellqvist at hotmail.com (Mirelle Mellqvist)
Date: Tue, 05 Oct 2004 06:49:22 +0000
Subject: [vtkusers] Interact with data in realtime
Message-ID: <BAY1-F7GSyMp69YDqSk000021b0@hotmail.com>

Hi there!

I have a problem where I want to interact with my VTK application in real 
time.
I have an unstructured mesh that I have read in with the 
unstructuredgridReader( a *.vtk file). In my vtk file I also have vectors 
values for the deformation of the mesh.I have  put it into an application 
where I use the WINAPI. I have two different pipelines. One for the deformed 
and one for the undeformed mesh.

Reader->DatasetMapper
Reader->..some filters....->PolyDataMapper




So to my question; How do I go from undeformed mesh to deformed mesh in my 
application by simple pressing a button in my windows application
I have had a glance at makin subclasses to vtkcommand as suggested by 
kitware in VTK users guide and then override the Execute function and then 
add an observer. But how to I add an observer to the button in my WINAPI 
application?

So this is what i really want to do just change the mapper in real time. is 
it doable or is there a better way?

if(state1) actor->SetMapper(dataMapper);
else {
actor->SetMapper(pMapper);

}


Thanks for your time. I would be really glad for any help
/Mirelle Mellqvist

_________________________________________________________________
Chatt: Tr?ffa nya n?tkompisar p? Habbo Hotel 
http://habbohotel.msn.se/habbo/sv/channelizer



From sscomp2004 at yahoo.com.au  Tue Oct  5 03:17:37 2004
From: sscomp2004 at yahoo.com.au (s comp)
Date: Tue, 5 Oct 2004 17:17:37 +1000 (EST)
Subject: [vtkusers] how to triangulate a set of points?
Message-ID: <20041005071737.64806.qmail@web61101.mail.yahoo.com>

Hi all,
 
how can I get vtk to triangulate a set of points ? (3d and 2d)
 
Many thanks,
 
Sonam



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From sscomp2004 at yahoo.com.au  Tue Oct  5 03:20:00 2004
From: sscomp2004 at yahoo.com.au (s comp)
Date: Tue, 5 Oct 2004 17:20:00 +1000 (EST)
Subject: [vtkusers] cell types: shorthand for all the same?
Message-ID: <20041005072000.15424.qmail@web61102.mail.yahoo.com>

With the vtk file format, is there a way of saying cell types are all the same? Rather than specifying each one separately?
 
Thanks,
 
Sonam



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From sscomp2004 at yahoo.com.au  Tue Oct  5 03:37:56 2004
From: sscomp2004 at yahoo.com.au (s comp)
Date: Tue, 5 Oct 2004 17:37:56 +1000 (EST)
Subject: [vtkusers] extract cell faces?
Message-ID: <20041005073756.68358.qmail@web61101.mail.yahoo.com>

Is there a way to extract faces of cells
 
(since there is a way to extract edges, it would seem likely that there would be, but I can't find anything)
 
Thanks,
 
Sonam



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From sscomp2004 at yahoo.com.au  Tue Oct  5 03:41:40 2004
From: sscomp2004 at yahoo.com.au (s comp)
Date: Tue, 5 Oct 2004 17:41:40 +1000 (EST)
Subject: AW: [vtkusers] how to triangulate a set of points?
In-Reply-To: <345551F83F790F41844B08409471D89E02DCBF83@mailhost.krz.uni-heidelberg.de>
Message-ID: <20041005074140.69097.qmail@web61101.mail.yahoo.com>

Thanks George
 
It seems that it was under my nose, but somehow I missed it.
 
Sonam

"Eggers, Georg" <Georg.Eggers at med.uni-heidelberg.de> wrote:
Hi Sonam,
 
please try vtkDelaunay2D or vtkDelaunay3D, respectively.
 
regards
 
Georg
 
 

Dr. Dr. Georg Eggers MD DMD 

Department of Oral and Cranio-Maxillofacial Surgery 
Heidelberg University 
Im Neuenheimer Feld 400 
69120 Heidelberg 
Germany 

Tel.:   +49 (0) 6221 / 56-7332 
Fax:    +49 (0) 6221 / 56-4222 

-----Urspr?ngliche Nachricht-----
Von: s comp [mailto:sscomp2004 at yahoo.com.au]
Gesendet: Dienstag, 5. Oktober 2004 09:18
An: vtkusers at vtk.org
Betreff: [vtkusers] how to triangulate a set of points?


Hi all,
 
how can I get vtk to triangulate a set of points ? (3d and 2d)
 
Many thanks,
 
Sonam



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From sscomp2004 at yahoo.com.au  Tue Oct  5 05:47:43 2004
From: sscomp2004 at yahoo.com.au (s comp)
Date: Tue, 5 Oct 2004 19:47:43 +1000 (EST)
Subject: [vtkusers] how to join unstructured grids?
Message-ID: <20041005094743.66966.qmail@web61105.mail.yahoo.com>

How can I join several unstructured grids together to make one?
 
Thanks,
 
Sonam



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From I.deBoer at polytec.de  Tue Oct  5 10:21:09 2004
From: I.deBoer at polytec.de (de Boer Ingo)
Date: Tue, 5 Oct 2004 16:21:09 +0200
Subject: [vtkusers] How to disable hardware acceleration in VTK/OpenGL?
Message-ID: <1484AEC8AB498A4EB64D4A8137D23FD901450030@02polywbr.waldbronn.polytec.de>

Hi,

I am trying to disable/enable hardware acceleration
via a GUI of my program. How is that possible ?
Can I use VTK or do I need plain OpenGL stuff ?

greets
  Ingo


---
Dr.-Ing. Ingo H. de Boer

Polytec GmbH
Polytec-Platz 1-7, 76337 Waldbronn, Germany
phone: ++49 7243 604 106
fax  : ++49 7243 604 255
 


From jfavre at cscs.ch  Tue Oct  5 12:11:55 2004
From: jfavre at cscs.ch (Jean M. Favre)
Date: Tue, 05 Oct 2004 18:11:55 +0200
Subject: [vtkusers] how to join unstructured grids?
In-Reply-To: <20041005094743.66966.qmail@web61105.mail.yahoo.com>
References: <20041005094743.66966.qmail@web61105.mail.yahoo.com>
Message-ID: <4162C7CB.2000600@cscs.ch>

s comp wrote:
> How can I join several unstructured grids together to make one?
>  

Several ideas come to mind. Depends on what you really want to do:

1) If you're doing your own Data Source, a Point Locator will help you 
merge coincident points for example.

http://www.vtk.org/doc/nightly/html/classvtkMergePoints.html

2) the Parallel VTK formats will allow you to specify several pieces of 
an unstructured domain.

read page 17 (and maybe more) here

http://www.vtk.org/pdf/file-formats.pdf

-- 
Dr. Jean M. Favre,                            email:favre @ cscs.ch
http://www.cscs.ch/about/Favre.php
CSCS, Swiss National Supercomputing Centre  | Tel:  +41 (91) 610.82.40
Via Cantonale, 6928 Manno, Switzerland      | Fax:  +41 (91) 610.82.82



From Eric.Harlow at edwards.af.mil  Tue Oct  5 12:35:50 2004
From: Eric.Harlow at edwards.af.mil (Harlow Eric D Contr 412 TW/ENR)
Date: Tue, 5 Oct 2004 09:35:50 -0700 
Subject: [vtkusers] Changing the stipple pattern of a curve in XYPlot
Message-ID: <7D4FEEC34EF66843830C74D10D6519690279BDA6@fsfspm38>

?


Hello,


Is there a way to only change the stipple pattern or width of the curves I
am plotting using the vtkXYPlotActor class?

I am using the vtkXYPlotActor to plot data and wish to set the line width of
a curve.  The problem is when I use the GetProperty member SetLineWidth it
changes the line width of the plot object including the axis.  This also
happens when I use SetLineStipplePattern.  I do not want to change the
stipple pattern of the axis.    

Thanks,

Eric



I found this post and would appreciate any help on this.  

What version of VTK are you using?  Sebastien Barre added that 
functionality to vtkProperty last month.

- Amy Henderson

At 01:14 PM 2/14/2001 -0500, Hines, Benjamin wrote:

>Does the VTK support stipple patterns on lines?  This is supported by 
>OpenGL and I thought it would be associated with the vtkProperty object 
>(or the OpenGL derivative), but was unable to find anything about it.


From sscomp2004 at yahoo.com.au  Tue Oct  5 12:45:07 2004
From: sscomp2004 at yahoo.com.au (s comp)
Date: Wed, 6 Oct 2004 02:45:07 +1000 (EST)
Subject: [vtkusers] how to join unstructured grids?
In-Reply-To: <4162C7CB.2000600@cscs.ch>
Message-ID: <20041005164508.7289.qmail@web61109.mail.yahoo.com>

Thanks for the suggestions Jean,
 
Well what I want to do is create one big unstructured grid consisting entirely of voxels, and then create many other small unstructured grids, by triangulating small subsets of the points from the large grid, (only 9 to 26 points) and then merging the large grid with all the small grids. So all the points will already be in the parent grid, and all I really want to do is create more cells.
 
Any more suggestions would be greatly appreciated,
 
Thanks,
 
Sonam

"Jean M. Favre" <jfavre at cscs.ch> wrote:
s comp wrote:
> How can I join several unstructured grids together to make one?
> 

Several ideas come to mind. Depends on what you really want to do:

1) If you're doing your own Data Source, a Point Locator will help you 
merge coincident points for example.

http://www.vtk.org/doc/nightly/html/classvtkMergePoints.html

2) the Parallel VTK formats will allow you to specify several pieces of 
an unstructured domain.

read page 17 (and maybe more) here

http://www.vtk.org/pdf/file-formats.pdf

-- 
Dr. Jean M. Favre, email:favre @ cscs.ch
http://www.cscs.ch/about/Favre.php
CSCS, Swiss National Supercomputing Centre | Tel: +41 (91) 610.82.40
Via Cantonale, 6928 Manno, Switzerland | Fax: +41 (91) 610.82.82




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From sean at millwood.ca  Tue Oct  5 13:30:55 2004
From: sean at millwood.ca (Sean Richards)
Date: Tue, 5 Oct 2004 13:30:55 -0400 (EDT)
Subject: [vtkusers] vtkPoints
Message-ID: <4471444.1096997455830.JavaMail.sean@millwood.ca>

Hello,

I would like to combine the contents of 2 objects of type vtkPoints ... for instance

// a list of points we already have
vtkPoints *combinedPoints = ... ;

// a new set of points we want to add to combinedPoints
vtkPoints *newPoints = ... ;

now I want to be able to add the contents of newPoints to combinedPoints, but I don't want to lose what is already in combinedPoints.

Any help would be greatly appreciated.

Thanks!

Sean

From mathieu.malaterre at kitware.com  Tue Oct  5 14:10:57 2004
From: mathieu.malaterre at kitware.com (Mathieu Malaterre)
Date: Tue, 05 Oct 2004 14:10:57 -0400
Subject: [vtkusers] How to disable hardware acceleration in VTK/OpenGL?
In-Reply-To: <1484AEC8AB498A4EB64D4A8137D23FD901450030@02polywbr.waldbronn.polytec.de>
References: <1484AEC8AB498A4EB64D4A8137D23FD901450030@02polywbr.waldbronn.polytec.de>
Message-ID: <4162E3B1.5010903@kitware.com>

On my ATI card I do:

export LIBGL_ALWAYS_INDIRECT=1

or

export LD_PRELOAD=/opt/Mesa/lib/libGL.so (linux only I guess)

HTH
Mathieu

de Boer Ingo wrote:
> Hi,
> 
> I am trying to disable/enable hardware acceleration
> via a GUI of my program. How is that possible ?
> Can I use VTK or do I need plain OpenGL stuff ?
> 
> greets
>   Ingo
> 
> 
> ---
> Dr.-Ing. Ingo H. de Boer
> 
> Polytec GmbH
> Polytec-Platz 1-7, 76337 Waldbronn, Germany
> phone: ++49 7243 604 106
> fax  : ++49 7243 604 255
>  
> _______________________________________________
> This is the private VTK discussion list. 
> Please keep messages on-topic. Check the FAQ at: <http://public.kitware.com/cgi-bin/vtkfaq>
> Follow this link to subscribe/unsubscribe:
> http://www.vtk.org/mailman/listinfo/vtkusers
> 





From sey_ai at hotmail.com  Tue Oct  5 14:55:18 2004
From: sey_ai at hotmail.com (ai amano)
Date: Tue, 05 Oct 2004 13:55:18 -0500
Subject: [vtkusers] problems with the reading of data????
Message-ID: <BAY18-F14QABZTW5k1E000210b7@hotmail.com>

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From jak4.scr at gmx.net  Tue Oct  5 16:15:08 2004
From: jak4.scr at gmx.net (=?ISO-8859-1?Q?=22Johannes_K=E4fer=22?=)
Date: Tue, 5 Oct 2004 22:15:08 +0200 (MEST)
Subject: [vtkusers] Unicode && vtkObjectBase
Message-ID: <24702.1097007308@www53.gmx.net>

Hi,

I've encountered something within the current CVS vtk which I consider a
bug.

If you are going to compile the code below (it's actually the unaltered
cone6.cxx file from the vtk examples) in Visual Studio 6.0 with: UNICODE,
_UNICODE added to (Project -> Settings > Tab C++  Preprocessor definitions )
and delete _MBCS, than the linker will output the following error:

Cone6.obj : error LNK2001: unresolved external symbol "public: virtual char
const * __thiscall vtkObjectBase::GetClassNameW(void)const "
(?GetClassNameW at vtkObjectBase@@UBEPBDXZ)
Release/test.exe : fatal error LNK1120: 1 unresolved externals

It has to be noted that without the UNICODE options it works fine. The same
example works perfectly with vtk 4.2 and the UNICODE options ON.

If found a bug-report about UNICODE at the bugtracker at:
http://www.vtk.org/Bug/bug.php?op=show&bugid=602&pos=20. However this
bug-report seems not to be related to my "bug".

So, what do you think?

Greetings
 Johannes

---Code
#include "vtkConeSource.h"
#include "vtkPolyDataMapper.h"
#include "vtkRenderWindow.h"
#include "vtkRenderWindowInteractor.h"
#include "vtkCamera.h"
#include "vtkActor.h"
#include "vtkRenderer.h"
#include "vtkCommand.h"
#include "vtkBoxWidget.h"
#include "vtkTransform.h"
#include "vtkInteractorStyleTrackballCamera.h"

//
// Similar to Cone2.cxx, we define a callback for interaction.
// 
class vtkMyCallback : public vtkCommand
{
public:
  static vtkMyCallback *New() 
    { return new vtkMyCallback; }
  virtual void Execute(vtkObject *caller, unsigned long, void*)
    {
      vtkTransform *t = vtkTransform::New();
      vtkBoxWidget *widget = reinterpret_cast<vtkBoxWidget*>(caller);
      widget->GetTransform(t);
      widget->GetProp3D()->SetUserTransform(t);
      t->Delete();
    }
};

class vtkMyCallback1 : public vtkCommand{
public:
	static vtkMyCallback1* New()
		{ return new vtkMyCallback1; }
	
	//TODO: dirty hack, but otherwise I got a linker error and the function is
of no use here
	//virtual const char *GetClassName() const {return "vtkObjectBase";};

	virtual void Execute(vtkObject *caller, unsigned long, void* ){
		// thoughts: since we are determining here the actor we picked it would be
nice
		// to check how the pick was made (which key)

		//modification
		//kaeferj, 09/11/04
		//adding multiple pick functionality to the program
		vtkCellPicker *picker = (vtkCellPicker *)caller;
		unsigned int k;
		
		double coord[3];
//		picker->GetPickPosition( coord );

/*		// we found an actor
		if( picker->GetActor()!=NULL ){
			vtkActor *pickedActor = picker->GetActor();
			bool foundCandidateActor = false;
			
			pickedSurfaceTreeRemovableActorsIndex = -1;
			//TODO: this if is always true (the variable is set above)
			if( !foundCandidateActor )
				for(k=0;k<surfaceTreeRemovableActors.size();k++)
					if(pickedActor==surfaceTreeRemovableActors[k].actor){
						cout << "Picking on tree component " << k << endl;
						
						pickedSurfaceTreeRemovableActorsIndex = k;

						//modification
						//kaeferj, 09/11/04
						//adding multiple pick functionality to the program
						//we need to check if the component has already been picked
						std::vector<int>::iterator theIterator;
						bool add_actor = true;

						for( theIterator = pickedActors.begin(); theIterator !=
pickedActors.end(); theIterator++){
							if( k == *theIterator ){
								add_actor = false;
								break;
							}
						}

						if( add_actor )
							pickedActors.push_back(k);
						else
							pickedActors.erase( theIterator );
						//end
						
						foundCandidateActor = true;
						// update slice
						dlgUpdateSlice(coord);
						break;
					}
		}
		//modification
		//kaeferj, 09/11/04
		//adding multiple pick functionality to the program
		else{
			// we picked no object --> this means we have to delete every selection
thus far
			// the red boxes are deleted within vtk, we just clear our list.
			pickedActors.erase( pickedActors.begin(), pickedActors.end() );
		}

		//TODO: what is this for?
		if(picker->GetVolume()!=NULL)
		{
			vtkVolume* pickedVolume = picker->GetVolume();
			bool foundCandidateVolume = false;
			if( !foundCandidateVolume )
				for(k=0;k<surfaceTreeRemovableActors.size();k++)
					if(pickedVolume==surfaceTreeRemovableActors[k].volume){
						cout << "Picking on tree component " << k << endl;
						
						pickedSurfaceTreeRemovableActorsIndex = k;
					
						foundCandidateVolume = true;
						break;
					}
		}*/
	}
};

int main( int argc, char *argv[] )
{
  // 
  // Next we create an instance of vtkConeSource and set some of its
  // properties. The instance of vtkConeSource "cone" is part of a
  // visualization pipeline (it is a source process object); it produces
data
  // (output type is vtkPolyData) which other filters may process.
  //
  vtkConeSource *cone = vtkConeSource::New();
  cone->SetHeight( 3.0 );
  cone->SetRadius( 1.0 );
  cone->SetResolution( 10 );
  
  // 
  // In this example we terminate the pipeline with a mapper process object.
  // (Intermediate filters such as vtkShrinkPolyData could be inserted in
  // between the source and the mapper.)  We create an instance of
  // vtkPolyDataMapper to map the polygonal data into graphics primitives.
We
  // connect the output of the cone souece to the input of this mapper.
  //
  vtkPolyDataMapper *coneMapper = vtkPolyDataMapper::New();
  coneMapper->SetInput( cone->GetOutput() );

  // 
  // Create an actor to represent the cone. The actor orchestrates rendering
  // of the mapper's graphics primitives. An actor also refers to properties
  // via a vtkProperty instance, and includes an internal transformation
  // matrix. We set this actor's mapper to be coneMapper which we created
  // above.
  //
  vtkActor *coneActor = vtkActor::New();
  coneActor->SetMapper( coneMapper );

  //
  // Create the Renderer and assign actors to it. A renderer is like a
  // viewport. It is part or all of a window on the screen and it is
  // responsible for drawing the actors it has.  We also set the background
  // color here.
  //
  vtkRenderer *ren1= vtkRenderer::New();
  ren1->AddActor( coneActor );
  ren1->SetBackground( 0.1, 0.2, 0.4 );

  //
  // Finally we create the render window which will show up on the screen.
  // We put our renderer into the render window using AddRenderer. We also
  // set the size to be 300 pixels by 300.
  //
  vtkRenderWindow *renWin = vtkRenderWindow::New();
  renWin->AddRenderer( ren1 );
  renWin->SetSize( 300, 300 );

  // 
  // The vtkRenderWindowInteractor class watches for events (e.g., keypress,
  // mouse) in the vtkRenderWindow. These events are translated into
  // event invocations that VTK understands (see VTK/Common/vtkCommand.h
  // for all events that VTK processes). Then observers of these VTK
  // events can process them as appropriate.
  vtkRenderWindowInteractor *iren = vtkRenderWindowInteractor::New();
  iren->SetRenderWindow(renWin);

  //
  // By default the vtkRenderWindowInteractor instantiates an instance
  // of vtkInteractorStyle. vtkInteractorStyle translates a set of events
  // it observes into operations on the camera, actors, and/or properties
  // in the vtkRenderWindow associated with the vtkRenderWinodwInteractor. 
  // Here we specify a particular interactor style.
  vtkInteractorStyleTrackballCamera *style = 
    vtkInteractorStyleTrackballCamera::New();
  iren->SetInteractorStyle(style);

  //
  // Here we use a vtkBoxWidget to transform the underlying coneActor (by
  // manipulating its transformation matrix). Many other types of widgets
  // are available for use, see the documentation for more details.
  //
  // The SetInteractor method is how 3D widgets are associated with the
render
  // window interactor. Internally, SetInteractor sets up a bunch of
callbacks
  // using the Command/Observer mechanism (AddObserver()). The place factor 
  // controls the initial size of the widget with respect to the bounding
box
  // of the input to the widget.
  vtkBoxWidget *boxWidget = vtkBoxWidget::New();
  boxWidget->SetInteractor(iren);
  boxWidget->SetPlaceFactor(1.25);

  //
  // Place the interactor initially. The input to a 3D widget is used to 
  // initially position and scale the widget. The EndInteractionEvent is
  // observed which invokes the SelectPolygons callback.
  //
  boxWidget->SetProp3D(coneActor);
  boxWidget->PlaceWidget();
  vtkMyCallback *callback = vtkMyCallback::New();
  boxWidget->AddObserver(vtkCommand::InteractionEvent, callback);

  //
  // Normally the user presses the "i" key to bring a 3D widget to life.
Here
  // we will manually enable it so it appears with the cone. 
  //
  boxWidget->On();

  //
  // Start the event loop.
  //
  iren->Initialize();
  iren->Start();
  
  //
  // Free up any objects we created. All instances in VTK are deleted by
  // using the Delete() method.
  //
  cone->Delete();
  coneMapper->Delete();
  coneActor->Delete();
  callback->Delete();
  boxWidget->Delete();
  ren1->Delete();
  renWin->Delete();
  iren->Delete();
  style->Delete();

  return 0;
}

-- 
GMX ProMail mit bestem Virenschutz http://www.gmx.net/de/go/mail
+++ Empfehlung der Redaktion +++ Internet Professionell 10/04 +++



From burlen at apollo.sr.unh.edu  Tue Oct  5 22:17:13 2004
From: burlen at apollo.sr.unh.edu (Burlen Loring)
Date: Tue, 5 Oct 2004 22:17:13 -0400
Subject: [vtkusers] positioning the vtkCubeAxisActor2D
Message-ID: <200410052217.14191.burlen@apollo.sr.unh.edu>

Hi 
I am using the vtkCubeAxisActor2D to provide  axes for a contour plot, I have 
translated the plot to the right by 10 units, however the Axes don't move.

 I have tried many things to move the Axes such as SetPosition(), 
SetDisplayPosition(), GetPositionCoordinate().SetValue(), 
GetActualPositionCoordinate.SetValue(), even 
GetXAxisActor2D().GetPoint1Coordinate().SetValue() etc...

The Axes won't budge. Does anyone know what I can do to translate this thing 
10  units (in the world coordinate system) to the right?


From vidya_raghavan at hotmail.com  Wed Oct  6 00:51:09 2004
From: vidya_raghavan at hotmail.com (Vidya Raghavan)
Date: Wed, 06 Oct 2004 04:51:09 +0000
Subject: [vtkusers] error when creating filter for paraview
Message-ID: <BAY2-F11gNjWOiy54Dg0001dd5f@hotmail.com>

Dear VTK and paraview users,

I'm trying to add my own VTK filter to Paraview, and am following the 
example PVLocal in the "Examples" folder supplied with Paraview code. I've 
attached the entire code, which has to be first built in CMake and the the 
.dsw is loaded in vc++ and compiled.

The filter functionaily right now is simple:

When I load a .vtp file in Paraview, I need to select my filter and it 
calculates the normals of the model data loaded. The code is in 
TrilateralFiltering.cxx in ExecuteData method.

When compiled, I get 2 errors:

:\vtkProjects\Paraview-plugins\PVTF\vtkTrilateralFiltering.cxx(52) : error 
C2039: 'AllocateOutputData' : is not a member of 'vtkTrilateralFiltering'
        C:\vtkProjects\Paraview-plugins\PVTF\vtkTrilateralFiltering.h(10) : 
see declaration of 'vtkTrilateralFiltering'
C:\vtkProjects\Paraview-plugins\PVTF\vtkTrilateralFiltering.cxx(56) : error 
C2039: 'GetOutput' : is not a member of 'vtkPolyData'


Please help!

Thanks.

_________________________________________________________________
Steam up your desktop! Get the hottest wallpapers. 
http://www.msn.co.in/cinema/ Right here at MSN movies!
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From kalyan.pushpala at wipro.com  Wed Oct  6 01:53:35 2004
From: kalyan.pushpala at wipro.com (kalyan.pushpala at wipro.com)
Date: Wed, 6 Oct 2004 11:23:35 +0530
Subject: [vtkusers] About Volume rendering
Message-ID: <FDBA3288011F564FA432D9FAF4083C95C45B92@blr-ecwhs-msg.wipro.com>


Hai all,
I am going to implement the Volume rendering Stuff for our  software.
I implemented  this using vtkraycast function that is very slow even
with QuadroFX 1000 graphics card.
So how can I make it fast . Is there any other technique available by
VTK. How to make the Volumerendering fast using VTK
Is there any methods to make it fast and interactive.
How about texture mapping.
How about vtkVolumePro

Thanking u in anticipation

Regards
kalyan





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From guernika_devel at yahoo.it  Wed Oct  6 03:45:10 2004
From: guernika_devel at yahoo.it (francesco caruso)
Date: Wed, 06 Oct 2004 09:45:10 +0200
Subject: [vtkusers] interactor in a main loop
Message-ID: <4163A286.1030508@yahoo.it>

Hello

In my VTK application, there is a main loop in which
frames are grabbed continuously.

I'd like add an interactor, but when I do it the main loop stops
because interactor is waiting for an event.

How can I resolve this?

Thanks in advance


From arbvtk at yahoo.fr  Wed Oct  6 04:05:37 2004
From: arbvtk at yahoo.fr (=?iso-8859-1?q?REGAT-BARREL=20Aur=E9lien?=)
Date: Wed, 6 Oct 2004 10:05:37 +0200 (CEST)
Subject: [vtkusers] Unicode && vtkObjectBase
In-Reply-To: <24702.1097007308@www53.gmx.net>
Message-ID: <20041006080537.34263.qmail@web25204.mail.ukl.yahoo.com>

Hi,
Read this
http://aurelien_regat-barrel.blogspot.com/2004_08_01_aurelien_regat-barrel_archive.html#109231591357369677
(and help me to correct my english :-)


"Johannes K?fer" <jak4.scr at gmx.net> wrote:
Hi,

I've encountered something within the current CVS vtk which I consider a
bug.

If you are going to compile the code below (it's actually the unaltered
cone6.cxx file from the vtk examples) in Visual Studio 6.0 with: UNICODE,
_UNICODE added to (Project -> Settings > Tab C++ Preprocessor definitions )
and delete _MBCS, than the linker will output the following error:

Cone6.obj : error LNK2001: unresolved external symbol "public: virtual char
const * __thiscall vtkObjectBase::GetClassNameW(void)const "
(?GetClassNameW at vtkObjectBase@@UBEPBDXZ)
Release/test.exe : fatal error LNK1120: 1 unresolved externals

It has to be noted that without the UNICODE options it works fine. The same
example works perfectly with vtk 4.2 and the UNICODE options ON.

If found a bug-report about UNICODE at the bugtracker at:
http://www.vtk.org/Bug/bug.php?op=show&bugid=602&pos=20. However this
bug-report seems not to be related to my "bug".

So, what do you think?

Greetings
Johannes

---Code
#include "vtkConeSource.h"
#include "vtkPolyDataMapper.h"
#include "vtkRenderWindow.h"
#include "vtkRenderWindowInteractor.h"
#include "vtkCamera.h"
#include "vtkActor.h"
#include "vtkRenderer.h"
#include "vtkCommand.h"
#include "vtkBoxWidget.h"
#include "vtkTransform.h"
#include "vtkInteractorStyleTrackballCamera.h"

//
// Similar to Cone2.cxx, we define a callback for interaction.
// 
class vtkMyCallback : public vtkCommand
{
public:
static vtkMyCallback *New() 
{ return new vtkMyCallback; }
virtual void Execute(vtkObject *caller, unsigned long, void*)
{
vtkTransform *t = vtkTransform::New();
vtkBoxWidget *widget = reinterpret_cast(caller);
widget->GetTransform(t);
widget->GetProp3D()->SetUserTransform(t);
t->Delete();
}
};

class vtkMyCallback1 : public vtkCommand{
public:
static vtkMyCallback1* New()
{ return new vtkMyCallback1; }

//TODO: dirty hack, but otherwise I got a linker error and the function is
of no use here
//virtual const char *GetClassName() const {return "vtkObjectBase";};

virtual void Execute(vtkObject *caller, unsigned long, void* ){
// thoughts: since we are determining here the actor we picked it would be
nice
// to check how the pick was made (which key)

//modification
//kaeferj, 09/11/04
//adding multiple pick functionality to the program
vtkCellPicker *picker = (vtkCellPicker *)caller;
unsigned int k;

double coord[3];
// picker->GetPickPosition( coord );

/* // we found an actor
if( picker->GetActor()!=NULL ){
vtkActor *pickedActor = picker->GetActor();
bool foundCandidateActor = false;

pickedSurfaceTreeRemovableActorsIndex = -1;
//TODO: this if is always true (the variable is set above)
if( !foundCandidateActor )
for(k=0;k if(pickedActor==surfaceTreeRemovableActors[k].actor){
cout << "Picking on tree component " << k << endl;

pickedSurfaceTreeRemovableActorsIndex = k;

//modification
//kaeferj, 09/11/04
//adding multiple pick functionality to the program
//we need to check if the component has already been picked
std::vector::iterator theIterator;
bool add_actor = true;

for( theIterator = pickedActors.begin(); theIterator !=
pickedActors.end(); theIterator++){
if( k == *theIterator ){
add_actor = false;
break;
}
}

if( add_actor )
pickedActors.push_back(k);
else
pickedActors.erase( theIterator );
//end

foundCandidateActor = true;
// update slice
dlgUpdateSlice(coord);
break;
}
}
//modification
//kaeferj, 09/11/04
//adding multiple pick functionality to the program
else{
// we picked no object --> this means we have to delete every selection
thus far
// the red boxes are deleted within vtk, we just clear our list.
pickedActors.erase( pickedActors.begin(), pickedActors.end() );
}

//TODO: what is this for?
if(picker->GetVolume()!=NULL)
{
vtkVolume* pickedVolume = picker->GetVolume();
bool foundCandidateVolume = false;
if( !foundCandidateVolume )
for(k=0;k if(pickedVolume==surfaceTreeRemovableActors[k].volume){
cout << "Picking on tree component " << k << endl;

pickedSurfaceTreeRemovableActorsIndex = k;

foundCandidateVolume = true;
break;
}
}*/
}
};

int main( int argc, char *argv[] )
{
// 
// Next we create an instance of vtkConeSource and set some of its
// properties. The instance of vtkConeSource "cone" is part of a
// visualization pipeline (it is a source process object); it produces
data
// (output type is vtkPolyData) which other filters may process.
//
vtkConeSource *cone = vtkConeSource::New();
cone->SetHeight( 3.0 );
cone->SetRadius( 1.0 );
cone->SetResolution( 10 );

// 
// In this example we terminate the pipeline with a mapper process object.
// (Intermediate filters such as vtkShrinkPolyData could be inserted in
// between the source and the mapper.) We create an instance of
// vtkPolyDataMapper to map the polygonal data into graphics primitives.
We
// connect the output of the cone souece to the input of this mapper.
//
vtkPolyDataMapper *coneMapper = vtkPolyDataMapper::New();
coneMapper->SetInput( cone->GetOutput() );

// 
// Create an actor to represent the cone. The actor orchestrates rendering
// of the mapper's graphics primitives. An actor also refers to properties
// via a vtkProperty instance, and includes an internal transformation
// matrix. We set this actor's mapper to be coneMapper which we created
// above.
//
vtkActor *coneActor = vtkActor::New();
coneActor->SetMapper( coneMapper );

//
// Create the Renderer and assign actors to it. A renderer is like a
// viewport. It is part or all of a window on the screen and it is
// responsible for drawing the actors it has. We also set the background
// color here.
//
vtkRenderer *ren1= vtkRenderer::New();
ren1->AddActor( coneActor );
ren1->SetBackground( 0.1, 0.2, 0.4 );

//
// Finally we create the render window which will show up on the screen.
// We put our renderer into the render window using AddRenderer. We also
// set the size to be 300 pixels by 300.
//
vtkRenderWindow *renWin = vtkRenderWindow::New();
renWin->AddRenderer( ren1 );
renWin->SetSize( 300, 300 );

// 
// The vtkRenderWindowInteractor class watches for events (e.g., keypress,
// mouse) in the vtkRenderWindow. These events are translated into
// event invocations that VTK understands (see VTK/Common/vtkCommand.h
// for all events that VTK processes). Then observers of these VTK
// events can process them as appropriate.
vtkRenderWindowInteractor *iren = vtkRenderWindowInteractor::New();
iren->SetRenderWindow(renWin);

//
// By default the vtkRenderWindowInteractor instantiates an instance
// of vtkInteractorStyle. vtkInteractorStyle translates a set of events
// it observes into operations on the camera, actors, and/or properties
// in the vtkRenderWindow associated with the vtkRenderWinodwInteractor. 
// Here we specify a particular interactor style.
vtkInteractorStyleTrackballCamera *style = 
vtkInteractorStyleTrackballCamera::New();
iren->SetInteractorStyle(style);

//
// Here we use a vtkBoxWidget to transform the underlying coneActor (by
// manipulating its transformation matrix). Many other types of widgets
// are available for use, see the documentation for more details.
//
// The SetInteractor method is how 3D widgets are associated with the
render
// window interactor. Internally, SetInteractor sets up a bunch of
callbacks
// using the Command/Observer mechanism (AddObserver()). The place factor 
// controls the initial size of the widget with respect to the bounding
box
// of the input to the widget.
vtkBoxWidget *boxWidget = vtkBoxWidget::New();
boxWidget->SetInteractor(iren);
boxWidget->SetPlaceFactor(1.25);

//
// Place the interactor initially. The input to a 3D widget is used to 
// initially position and scale the widget. The EndInteractionEvent is
// observed which invokes the SelectPolygons callback.
//
boxWidget->SetProp3D(coneActor);
boxWidget->PlaceWidget();
vtkMyCallback *callback = vtkMyCallback::New();
boxWidget->AddObserver(vtkCommand::InteractionEvent, callback);

//
// Normally the user presses the "i" key to bring a 3D widget to life.
Here
// we will manually enable it so it appears with the cone. 
//
boxWidget->On();

//
// Start the event loop.
//
iren->Initialize();
iren->Start();

//
// Free up any objects we created. All instances in VTK are deleted by
// using the Delete() method.
//
cone->Delete();
coneMapper->Delete();
coneActor->Delete();
callback->Delete();
boxWidget->Delete();
ren1->Delete();
renWin->Delete();
iren->Delete();
style->Delete();

return 0;
}

-- 
GMX ProMail mit bestem Virenschutz http://www.gmx.net/de/go/mail
+++ Empfehlung der Redaktion +++ Internet Professionell 10/04 +++

_______________________________________________
This is the private VTK discussion list. 
Please keep messages on-topic. Check the FAQ at: 
Follow this link to subscribe/unsubscribe:
http://www.vtk.org/mailman/listinfo/vtkusers


Aur?lien REGAT-BARREL 
My VTK blog : http://aurelien_regat-barrel.blogspot.com


		
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From I.deBoer at polytec.de  Wed Oct  6 04:09:23 2004
From: I.deBoer at polytec.de (de Boer Ingo)
Date: Wed, 6 Oct 2004 10:09:23 +0200
Subject: [vtkusers] How to disable hardware acceleration in VTK/OpenGL?
Message-ID: <1484AEC8AB498A4EB64D4A8137D23FD901450033@02polywbr.waldbronn.polytec.de>


Actually, I need something under windows..

thanks&greets
  Ingo

---
Dr.-Ing. Ingo H. de Boer

Polytec GmbH
Polytec-Platz 1-7, 76337 Waldbronn, Germany
phone: ++49 7243 604 106
fax  : ++49 7243 604 255
 
 
> On my ATI card I do:
> 
> export LIBGL_ALWAYS_INDIRECT=1
> 
> or
> 
> export LD_PRELOAD=/opt/Mesa/lib/libGL.so (linux only I guess)
> 
> HTH
> Mathieu
> 
> de Boer Ingo wrote:
> > Hi,
> > 
> > I am trying to disable/enable hardware acceleration
> > via a GUI of my program. How is that possible ?
> > Can I use VTK or do I need plain OpenGL stuff ?
> > 
> > greets
> >   Ingo
> > 
> > 
> > ---
> > Dr.-Ing. Ingo H. de Boer
> > 
> > Polytec GmbH
> > Polytec-Platz 1-7, 76337 Waldbronn, Germany
> > phone: ++49 7243 604 106
> > fax  : ++49 7243 604 255
> >  
> > _______________________________________________
> > This is the private VTK discussion list. 
> > Please keep messages on-topic. Check the FAQ at: 
<http://public.kitware.com/cgi-bin/vtkfaq>
> Follow this link to subscribe/unsubscribe:
> http://www.vtk.org/mailman/listinfo/vtkusers
> 





From Janne.Hamalainen at hus.fi  Wed Oct  6 04:13:23 2004
From: Janne.Hamalainen at hus.fi (=?iso-8859-1?Q?H=E4m=E4l=E4inen_Janne?=)
Date: Wed, 6 Oct 2004 11:13:23 +0300 
Subject: [vtkusers] ITK->VTK mesh connector?
Message-ID: <57DADDD9B062454A82284FE2A5B97A36055829C1@muikku2.hus.fi>

Hi,

We are in need of connecting itk::Mesh objects to VTK pipeline for
visualization purposes. I tried to browse through the mailing list and
Insight Applications, but I couldn't find (I might have of course missed it)
if some kind of import/export methodology (as with Images) has already been
implemented in the ITK and VTK distributions. If you know how to do this
with existing filters, or if you have implemented an own connector and want
to share it, please let us know. We wouldn't want to "invent the wheel"
again. I'm also quite sure this feature could be used by many people, and it
would be good to make it available.

-Janne




--
Janne H?m?l?inen
Researcher (M.Sc.)
Helsinki University Central Hospital
Department of Radiology


From denhuys at hotmail.com  Wed Oct  6 05:09:03 2004
From: denhuys at hotmail.com (Toon Huysmans)
Date: Wed, 6 Oct 2004 11:09:03 +0200
Subject: [vtkusers] ITK->VTK mesh connector?
References: <57DADDD9B062454A82284FE2A5B97A36055829C1@muikku2.hus.fi>
Message-ID: <BAY14-DAV18QvnbEG10000661c8@hotmail.com>

Hi Janne,

    I found this in the itk archive:


http://public.kitware.com/pipermail/insight-users/2004-September/010504.html

    So it is already implemented :-)!

Greetings,

Toon huysmans.

----- Original Message ----- 
From: "H?m?l?inen Janne" <Janne.Hamalainen at hus.fi>
To: <vtkusers at vtk.org>
Sent: Wednesday, October 06, 2004 10:13 AM
Subject: [vtkusers] ITK->VTK mesh connector?


Hi,

We are in need of connecting itk::Mesh objects to VTK pipeline for
visualization purposes. I tried to browse through the mailing list and
Insight Applications, but I couldn't find (I might have of course missed it)
if some kind of import/export methodology (as with Images) has already been
implemented in the ITK and VTK distributions. If you know how to do this
with existing filters, or if you have implemented an own connector and want
to share it, please let us know. We wouldn't want to "invent the wheel"
again. I'm also quite sure this feature could be used by many people, and it
would be good to make it available.

-Janne




--
Janne H?m?l?inen
Researcher (M.Sc.)
Helsinki University Central Hospital
Department of Radiology
_______________________________________________
This is the private VTK discussion list.
Please keep messages on-topic. Check the FAQ at:
<http://public.kitware.com/cgi-bin/vtkfaq>
Follow this link to subscribe/unsubscribe:
http://www.vtk.org/mailman/listinfo/vtkusers


From sdrouin at bic.mni.mcgill.ca  Wed Oct  6 09:51:33 2004
From: sdrouin at bic.mni.mcgill.ca (Simon Drouin)
Date: Wed, 06 Oct 2004 09:51:33 -0400
Subject: [vtkusers] interactor in a main loop
In-Reply-To: <4163A286.1030508@yahoo.it>
References: <4163A286.1030508@yahoo.it>
Message-ID: <4163F865.2030601@bic.mni.mcgill.ca>

Hi Francesco,

It is not possible to do that unless you run your frame grabbing loop in 
a different thread (see vtkMultiThreader class).  If you use 
vtkVideoSource to grab frames, this is done for you. The Record method 
starts a different thread that grab frames continuously, so it doesn't 
interfere with your vtkInteractor loop.

The other problem is to tell the vtkInteractor loop to redisplay the 
content of its window when a new frame is available. You can solve that 
by using vtk with a gui toolkit, because some toolkits ( Qt and Mfc at 
least, I don't know for the others ) have threadsafe methods to post 
user defined events. In this case, you just need to watch 
vtkVideoSource's "Modified" event and when it is trigered, you post an 
event.

To vtk developers: is it in your plans to add some kind of threadsafe 
mechanism to standard vtkWindow to be able to post user-defined events  
that will be caught by the interactor? (maybe there is already something 
like that available, but I haven't found it)

Good luck Francesco.

Simon


francesco caruso wrote:

> Hello
>
> In my VTK application, there is a main loop in which
> frames are grabbed continuously.
>
> I'd like add an interactor, but when I do it the main loop stops
> because interactor is waiting for an event.
>
> How can I resolve this?
>
> Thanks in advance
> _______________________________________________
> This is the private VTK discussion list. Please keep messages 
> on-topic. Check the FAQ at: <http://public.kitware.com/cgi-bin/vtkfaq>
> Follow this link to subscribe/unsubscribe:
> http://www.vtk.org/mailman/listinfo/vtkusers
>



From jak4.scr at gmx.net  Wed Oct  6 10:01:32 2004
From: jak4.scr at gmx.net (=?ISO-8859-1?Q?=22Johannes_K=E4fer=22?=)
Date: Wed, 6 Oct 2004 16:01:32 +0200 (MEST)
Subject: [vtkusers] Unicode && vtkObjectBase
References: <20B20848358CDA44AB6A2E277D2E1C5E06162BDC@postoffice.scr.siemens.com>
Message-ID: <26488.1097071292@www19.gmx.net>

Hi Aurelien,
 
great read (and the english is fine too ;)). I'm trying to copy your
settings and see whats happening.
 
Thx for that blog!
 
Johannes
 
BTW: I'm almost certain that your blog doesn't show up under google. Is this
intention? Because maybe otherwise I would have found it on my own and maybe
other vtk-users with a similar problem as well.

>  
> -----Original Message-----
> From: REGAT-BARREL Aur?lien [mailto:arbvtk at yahoo.fr]
> Sent: Wednesday, October 06, 2004 4:06 AM
> To: Johannes "K?fer; vtkusers at vtk.org
> Subject: Re: [vtkusers] Unicode && vtkObjectBase
> 
> 
> Hi,
> Read this
>
http://aurelien_regat-barrel.blogspot.com/2004_08_01_aurelien_regat-barrel_archive.html#109231591357369677
>
<http://aurelien_regat-barrel.blogspot.com/2004_08_01_aurelien_regat-barrel_archive.html#109231591357369677>
> (and help me to correct my english :-)
> 
> 
> "Johannes K?fer" <jak4.scr at gmx.net> wrote:
> 
> Hi,
> 
> I've encountered something within the current CVS vtk which I consider a
> bug.
> 
> If you are going to compile the code below (it's actually the unaltered
> cone6.cxx file from the vtk examples) in Visual Studio 6.0 with: UNICODE,
> _UNICODE added to (Project -> Settings > Tab C++ Preprocessor definitions
> )
> and delete _MBCS, than the linker will output the following error:
> 
> Cone6.obj : error LNK2001: unresolved external symbol "public: virtual
> char
> const * __thiscall vtkObjectBase::GetClassNameW(void)const "
> (?GetClassNameW at vtkObjectBase@@UBEPBDXZ)
> Release/test.exe : fatal error LNK1120: 1 unresolved externals
> 
> It has to be noted that without the UNICODE options it works fine. The
> same
> example works perfectly with vtk 4.2 and the UNICODE options ON.
> 
> If found a bug-report about UNICODE at the bugtracker at:
> http://www.vtk.org/Bug/bug.php?op=show&bugid=602&pos=20. However this
> bug-report seems not to be related to my "bug".
> 
> So, what do you think?
> 
> Greetings
> Johannes
> 

-- 
GMX ProMail mit bestem Virenschutz http://www.gmx.net/de/go/mail
+++ Empfehlung der Redaktion +++ Internet Professionell 10/04 +++



From clinton at elemtech.com  Wed Oct  6 10:51:16 2004
From: clinton at elemtech.com (Clinton Stimpson)
Date: Wed,  6 Oct 2004 08:51:16 -0600
Subject: [vtkusers] interactor in a main loop
In-Reply-To: <20041006080557.399172FF0F@public.kitware.com>
References: <20041006080557.399172FF0F@public.kitware.com>
Message-ID: <1097074276.416406643f80a@webmail.xmission.com>

>
> Message: 2
> Date: Wed, 06 Oct 2004 09:45:10 +0200
> From: francesco caruso <guernika_devel at yahoo.it>
> Subject: [vtkusers] interactor in a main loop
> To: vtkusers at vtk.org
> Message-ID: <4163A286.1030508 at yahoo.it>
> Content-Type: text/plain; charset=us-ascii; format=flowed
>
> Hello
>
> In my VTK application, there is a main loop in which
> frames are grabbed continuously.
>
> I'd like add an interactor, but when I do it the main loop stops
> because interactor is waiting for an event.
>
> How can I resolve this?
>
> Thanks in advance
>

You might be able to use a timer to do the frame grabbing.  The
vtkRenderWindowInteractor classes can make timers and they work with the
interactor start method.

Or ..

Have your existing event loop control the VTK windows as well as do the
frame grabbing.

This sample was originally made to show how to do multiple graphics windows
with multiple interactors without putting each window on a separate thread,
which makes it more complicated.

Clint

============================================

#include "vtkRenderWindow.h"
#include "vtkRenderer.h"

#include "vtkActor.h"
#include "vtkPolyDataMapper.h"
#include "vtkCylinderSource.h"
#include "vtkToolkits.h"

#ifdef VTK_USE_X
#include <X11/Intrinsic.h>
#include "vtkXRenderWindowInteractor.h"
#else
#include "vtkRenderWindowInteractor.h"
#include <windows.h>
#endif

int main(int, char**)
{
#ifdef VTK_USE_X
  XtToolkitInitialize();
  // create X11 application context
  XtAppContext app_context = XtCreateApplicationContext();
#endif

  // create two renderers
  vtkRenderer* ren1 = vtkRenderer::New();
  vtkRenderer* ren2 = vtkRenderer::New();

  // create 2 windows and hook the renderers up to them
  vtkRenderWindow* win1 = vtkRenderWindow::New();
  win1->AddRenderer(ren1);
  vtkRenderWindow* win2 = vtkRenderWindow::New();
  win2->AddRenderer(ren2);

#ifdef VTK_USE_X
  // create the X11 interactors and hook our X11 stuff up to them
  vtkXRenderWindowInteractor* iren1 = vtkXRenderWindowInteractor::New();
  iren1->SetRenderWindow(win1);
  iren1->Initialize(app_context);
  vtkXRenderWindowInteractor* iren2 = vtkXRenderWindowInteractor::New();
  iren2->SetRenderWindow(win2);
  iren2->Initialize(app_context);
#else
  // create the win32 interactors
  vtkRenderWindowInteractor* iren1 = vtkRenderWindowInteractor::New();
  iren1->SetRenderWindow(win1);
  iren1->Initialize();
  vtkRenderWindowInteractor* iren2 = vtkRenderWindowInteractor::New();
  iren2->SetRenderWindow(win2);
  iren2->Initialize();
#endif

  // put something in the windows so we know we can interact with it
  vtkActor* actor = vtkActor::New();
  vtkMapper::GlobalImmediateModeRenderingOn(); // allow the same actor in
multiple renderers, but slower
  vtkPolyDataMapper* mapper = vtkPolyDataMapper::New();
  actor->SetMapper(mapper);
  vtkCylinderSource* cyl = vtkCylinderSource::New();
  mapper->SetInput(cyl->GetOutput());

  ren1->AddProp(actor);
  ren2->AddProp(actor);

  // reset the view
  ren1->ResetCamera();
  ren2->ResetCamera();


// there are more things you can do below for more advanced stuff
// (e.g. integrate console input, network sockets, etc..
// to event loop without dealing with threads)

#ifdef VTK_USE_X
  // the main X11 event loop
  XtAppMainLoop(app_context);
#else
  MSG  msg;
  int status;
  while ((status = ::GetMessage (&msg, 0, 0, 0)) != 0)
  {
    if (status == -1)
      return -1;
    ::TranslateMessage (&msg);
    ::DispatchMessage (&msg);
  }
#endif

  return 0;

}


From sdrouin at bic.mni.mcgill.ca  Wed Oct  6 11:18:18 2004
From: sdrouin at bic.mni.mcgill.ca (Simon Drouin)
Date: Wed, 06 Oct 2004 11:18:18 -0400
Subject: [vtkusers] interactor in a main loop
In-Reply-To: <1097074276.416406643f80a@webmail.xmission.com>
References: <20041006080557.399172FF0F@public.kitware.com>
	<1097074276.416406643f80a@webmail.xmission.com>
Message-ID: <41640CBA.2000503@bic.mni.mcgill.ca>

Clinton Stimpson wrote:

>You might be able to use a timer to do the frame grabbing.  The
>vtkRenderWindowInteractor classes can make timers and they work with the
>interactor start method.
>  
>

If you use vtkVideoSource's Record method, you could watch the 
TimerEvent of your vtkRenderWindowInteractor and call Render then. This 
will update the output of the vtkVideoSource to give you the latest 
grabbed frame in the window. It is probably not as exact as posting an 
event when a new frame is available, but it might be enough for you.

Simon


From lindsey at sci.utah.edu  Wed Oct  6 12:20:18 2004
From: lindsey at sci.utah.edu (Lindsey McAninch)
Date: Wed, 06 Oct 2004 10:20:18 -0600
Subject: [vtkusers] Color Mapping Gradients
Message-ID: <web-1576338@sci.utah.edu>

Ok, so here is my problem, if you know the answer please 
be very explicit as I am fairly new to VTK and really need 
things spelled out.

I am using marching cubes to render some ct data of the 
cervical spine, C1 to be specific.  I want to visualize 
the gradients, or the magnitude of the gradients as a 
color map on the rendering.  I notice there is a 
ComputeGradients method and GetComputeGradients method in 
the marching cubes, but I am clueless as to how I should 
go about connecting it all together and using a look up 
table.  I also want to be able to take a portion of my 
image and determine the average gradient within that small 
portion to get an idea of the curvature in specific areas 
of the bone.  I don't know how to do this either.  If 
anyone has examples of setting up lookup tables and 
getting a color mapping of this kind of data or could help 
me, I would really appreciate it.  Thank you so much in 
advance.  

Lindsey Healy
University of Utah
Undergraduate
Department of Bioengineering
50 S. Central Campus Dr. 
Salt Lake City, UT 84112


From Yang at AGIUSA.COM  Wed Oct  6 12:22:52 2004
From: Yang at AGIUSA.COM (Xianjin Yang)
Date: Wed, 6 Oct 2004 11:22:52 -0500 
Subject: [vtkusers] How to disable hardware acceleration in VTK/OpenGL
	?
Message-ID: <6AC51773FA304E469DEE9569AF903E5B9486B0@mail.exchngsvr.agiusa.com>

Check out this link
http://www.opengl.org/resources/faq/technical/mswindows.htm
and find this topic 
5.030 How do I enable and disable hardware rendering on a Wintel card?

Currently, OpenGL doesn't contain a switch to enable or disable hardware
acceleration.....
To force software rendering from your application, choose a pixel format
that is not hardware accelerated.

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From sey_ai at hotmail.com  Wed Oct  6 12:44:23 2004
From: sey_ai at hotmail.com (ai amano)
Date: Wed, 06 Oct 2004 11:44:23 -0500
Subject: [vtkusers] problems with the reading of data????
Message-ID: <BAY18-F13ll7fnp3eEH000354ba@hotmail.com>

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From stout.jeremy at gmail.com  Wed Oct  6 15:48:58 2004
From: stout.jeremy at gmail.com (Jeremy Stout)
Date: Wed, 6 Oct 2004 15:48:58 -0400
Subject: [vtkusers] vtkPDataSetWriter Question
Message-ID: <a6bc6cc04100612483360c6c3@mail.gmail.com>

Hello, I am working with an unstructured grid that contains several
hundred thousand cells. I would like to partition this grid and store
it in vtk's parallel file format.  Looking through the Parallel
folder, I came across a class named vtkPDataSetWriter.  The class
seems to offer methods for writing an unstructured grid in the
parallel format and for setting the number of pieces it should be
broken into.  What I am wondering is whether this class will
intelligently partition my grid or if I need to do that myself. Any
help in this matter would be greatly appreciated.

Jeremy Stout


From pra at trivision.dk  Wed Oct  6 19:27:41 2004
From: pra at trivision.dk (Per R. Andresen)
Date: Thu, 7 Oct 2004 01:27:41 +0200
Subject: [vtkusers] How to debug a vtk class (single step in code)?
Message-ID: <000001c4abfc$139ed0a0$0a46a8c0@Andresen>

Dear VTK users,

I've wrote a VTK class and would like to single step (debug) the Execute()
function in debug-mode. It's possible to set breakpoints, but the
breakpoints change to "question marks" (meaning "A breakpoint cannot be set
because the code at this location is not loaded") when running the program. 

 

I'm running on Win XP using MS Visual Studio 2003 .net and compiled VTK
(4.4) with shared libs. It should be possible to single step in DLL's
according to the Visual Studio manual but apparently not VTK classes. Is
this due to the VTK object factory? If so, how does one debug VTK classes
(hopefully not with print statements:-))?

 

Thanks in advance,

Per

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From vidya_raghavan at hotmail.com  Wed Oct  6 19:39:03 2004
From: vidya_raghavan at hotmail.com (Vidya Raghavan)
Date: Wed, 06 Oct 2004 23:39:03 +0000
Subject: [vtkusers] How to add a filter in ParaView for vtp files
Message-ID: <BAY2-F5Jwg2xIpR3Z6c00027be3@hotmail.com>

Hi all,

I'm sorry for being so persistent, but I looked at PVLocal example to add a 
filter, but it's basically a simple cone display. Basically, I need to 
enable a filter when I load a vtp file, and obtain the surface normals of 
the ploygonal data. I have code below which does it, but am finding it 
difficult to transform the vtk code below as a plug-in to paraview. Several 
questions that I have unanswered are:
1) How do I enable the filter when I load a .vtp file?
2) How do I apply this code below to the current vtp file loaded in 
Paraview?

If someone can help me with this, I think I can go further with this on my 
own, since I need to integrate some code with this that does some processing 
on surface normal values.

I would really appreciate your help!


-------------------------------------------------------------------------------------------------------------------



#include "vtkPolyDataMapper.h"
#include "vtkRenderWindow.h"
#include "vtkCamera.h"
#include "vtkActor.h"
#include "vtkRenderer.h"
#include "vtkXMLPolyDataReader.h"
#include "vtkPolyDataNormals.h"
#include "vtkPolyData.h"
#include "vtkPointData.h"
#include "vtkProperty.h"

int main( int argc, char *argv[] )
{
	vtkXMLPolyDataReader *reader1 = vtkXMLPolyDataReader::New();
	reader1->SetFileName("model1.vtp");

	vtkPolyDataMapper *mapper1 = vtkPolyDataMapper::New();
	mapper1->SetInput(reader1->GetOutput());

	vtkProperty *prop1 = vtkProperty::New();
                prop1->SetDiffuseColor(0.5, 0.5, 0.5);
	prop1->SetSpecularPower(50);
	prop1->SetSpecular(.5);
	prop1->SetDiffuse(.8);

	vtkActor *actor1 = vtkActor::New();
	actor1->SetMapper(mapper1);
	actor1->SetProperty(prop1);

	vtkRenderer *ren= vtkRenderer::New();
	ren->AddActor(actor1);

	vtkPolyDataNormals *dataset = vtkPolyDataNormals::New();
	dataset->SetInput(reader1->GetOutput());
	dataset->SetFeatureAngle(60.0);
	dataset->FlipNormalsOff();
	dataset->Update();


	//to access the values:

	for (int pointID=0; pointID < dataset->GetOutput()->GetNumberOfPoints(); 
pointID++) {
		float *point = 
(float*)reader1->GetOutput()->GetPointData()->GetNormals()->GetTuple(pointID);

	/*	printf("x -> %f",(float)point[0]);
		printf("y -> %f",(float)point[1]);
		printf("z -> %f",(float)point[2]);*/
	}


	vtkRenderWindow *renWin = vtkRenderWindow::New();


	renWin->AddRenderer(ren);
	renWin->SetSize(800, 800 );

	renWin->Render();

               reader1->Delete();
               dataset->Delete();
               actor1->Delete();
               prop1->Delete();
               ren->Delete();
              renWin->Delete();
              return 0;
}

_________________________________________________________________
Apply to over 65,000 jobs now. 
http://www.naukri.com/msn/index.php?source=hottag Post your CV on naukri.com 
today.



From flypureau at hotmail.com  Wed Oct  6 22:58:33 2004
From: flypureau at hotmail.com (Q q)
Date: Thu, 07 Oct 2004 12:58:33 +1000
Subject: [vtkusers] error to diplay VTK image by using windows form.net
Message-ID: <BAY24-F18DBdMFqxLJz0004bdbc@hotmail.com>

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From j-mosso at uniandes.edu.co  Wed Oct  6 23:41:24 2004
From: j-mosso at uniandes.edu.co (John Mosso)
Date: Wed, 6 Oct 2004 22:41:24 -0500
Subject: [vtkusers] display bmp file
Message-ID: <009a01c4ac1f$85788bd0$37ac6ac8@arwen>

Greetings!
I'm VTK freshman (know nothing so far!)
I have an MFC app and I'm trying to display a bmp file using VTK. This is the code I'm using for:

 bmpReader = vtkBMPReader::New();
 bmpReader->SetFileName("C:\\MyFile.bmp");
 atext = vtkTexture::New();
 atext->SetInput(bmpReader->GetOutput());
 plane = vtkPlaneSource::New();
 planeMapper = vtkPolyDataMapper::New();
 planeMapper->SetInput(plane->GetOutput());
 ActorImage = vtkActor::New();
 ActorImage->SetMapper(planeMapper);
 ActorImage->SetTexture(atext);
 ren->AddActor(ActorImage);

This code display the file but it does not conserve lenght-heigth relationship (it's a square!) and centered; plus, I want to display the file starting at the left corner of the window and full size. Does anyone have any suggestions? 

Thanks in advance.

John Mosso





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From flypureau at hotmail.com  Thu Oct  7 01:10:06 2004
From: flypureau at hotmail.com (Tracy)
Date: Thu, 7 Oct 2004 15:10:06 +1000
Subject: [vtkusers] how to display VTK image by using Windows Form.net
Message-ID: <BAY24-DAV128TtEvzox00001e97@hotmail.com>

Hi, 

I am new to VTK. I want to use VTK under .net environment. I am using visual studio.net 2003 and VTK 4.2 now.

I can use CMAKE to generate a .net project  and display the cone  well ,but I want to use the windows form of VC++.net to display the cone. My idea is to create a cone.dll first and then invoke it from windows form. but I got the following error:

An unhandled exception of type 'System.TypeLoadException' occurred in t3.exe

 

Additional information: Could not load type vtkPolyData from assembly cone, Version=1.0.1741.21213, Culture=neutral, PublicKeyToken=null.

 

Can you help me with this ?

 

Thanks in advance



Tracy
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From venu.thomas at nestinfotech.com  Thu Oct  7 01:24:36 2004
From: venu.thomas at nestinfotech.com (=?iso-8859-1?Q?=BF_Venu_Thomas_=BF?=)
Date: Thu, 7 Oct 2004 10:54:36 +0530
Subject: [vtkusers] How To Display ITK Image By Using .NET
Message-ID: <075e01c4ac2d$efe62640$6900080a@nestinfotech.com>


  Dear,
           All ITK users..
   
  I am new to ITK. I want to use ITK under .net environment. I am using visual studio.net 2003
  I can use CMAKE to generate a .net project  and display the cone  well ,but I want to use the windows form of VC++.net to display the cone. My idea is to create a cone.dll first and then invoke it from windows form. but I got the following error:



    
              Venu Thomas
              Nest Information Technologies (P)LTD 
              S.Kalamassery, Cochin, Kerala, India
              0484-2551162/64 0484-2567566 919847655556
              venu.thomas at nestinfotech.com
              http://www.geocities.com/cochin_venu 
        
        

  Add this card to your address book




--------------------------------------------------------------------------------
 
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From julien.alizier at free.fr  Thu Oct  7 02:18:45 2004
From: julien.alizier at free.fr (Julien Alizier (free.fr))
Date: Thu, 7 Oct 2004 08:18:45 +0200
Subject: [vtkusers] How to debug a vtk class (single step in code)?
References: <000001c4abfc$139ed0a0$0a46a8c0@Andresen>
Message-ID: <003901c4ac35$80874790$7d9d7253@totoro>

Hi Per,

There are 2 ways in VC++ to debug shared libs :
1) The simpler (1 DLL) : Set your new dll as "Active Project". Set your
breakpoints wherever you want in your active project source files. When you
debug, specify the excutable you wish to run. The BP are then still active.
2) To step into multiple DLL : Set breakpoints where you want in your code.
Then set a breakpoint in the main executable or at the beginning of the
active project. Take care of setting it in a way that it insure that all DLL
are loaded at that point. When you'll run it in Debug, some breakpoints will
be disabled but not that one. So it will stop at that point. Press CTRL-B to
show the breakpoints dialog box. Check all checkboxes to re-enable your
disabled breakpoints. Run/Continue -> That's it!

Why : VC++ cannot set BP on a DLL that is not loaded. When this DLL is the
active project, VC++ will wait for it to be loaded before enabling BP.
Otherwise you'll have to wait for the DLL to be loaded and then set BP.

HTH

-- Julien


----- Original Message ----- 
From: Per R. Andresen
To: vtkusers at vtk.org
Sent: Thursday, October 07, 2004 1:27 AM
Subject: [vtkusers] How to debug a vtk class (single step in code)?


Dear VTK users,
I've wrote a VTK class and would like to single step (debug) the Execute()
function in debug-mode. It's possible to set breakpoints, but the
breakpoints change to "question marks" (meaning "A breakpoint cannot be set
because the code at this location is not loaded") when running the program.

I'm running on Win XP using MS Visual Studio 2003 .net and compiled VTK
(4.4) with shared libs. It should be possible to single step in DLL's
according to the Visual Studio manual but apparently not VTK classes. Is
this due to the VTK object factory? If so, how does one debug VTK classes
(hopefully not with print statementsJ)?

Thanks in advance,
Per



_______________________________________________
This is the private VTK discussion list.
Please keep messages on-topic. Check the FAQ at:
<http://public.kitware.com/cgi-bin/vtkfaq>
Follow this link to subscribe/unsubscribe:
http://www.vtk.org/mailman/listinfo/vtkusers




From pra at trivision.dk  Thu Oct  7 03:08:27 2004
From: pra at trivision.dk (Per R. Andresen)
Date: Thu, 7 Oct 2004 09:08:27 +0200
Subject: [vtkusers] How to debug a vtk class (single step in code)?
In-Reply-To: <003901c4ac35$80874790$7d9d7253@totoro>
Message-ID: <001101c4ac3c$7195bb70$0a46a8c0@Andresen>

Dear Julien

Thanks for your reply. Unfortunately, I've already tried it. Both running
the exe-file as the active project and "letting" the DLL run the exe-file.
I've also placed a breakpoint at vtk<Class>->Update() in the main function
and tried to step into the class. The debugger correctly stops at the
breakpoint, but I'm not able to "step into" the class. This happens after
the class has been initialized with "SetNumberOfIterations" etc. (which
should ensure that the DLL is loaded). 

None of it seems to work :( (I think it has something to do with the way the
class is allocated and called through the object factory).

/Per

-----Original Message-----
From: Julien Alizier (free.fr) [mailto:julien.alizier at free.fr] 
Sent: 7. oktober 2004 08:19
To: Per R. Andresen; vtkusers at vtk.org
Subject: Re: [vtkusers] How to debug a vtk class (single step in code)?

Hi Per,

There are 2 ways in VC++ to debug shared libs :
1) The simpler (1 DLL) : Set your new dll as "Active Project". Set your
breakpoints wherever you want in your active project source files. When you
debug, specify the excutable you wish to run. The BP are then still active.
2) To step into multiple DLL : Set breakpoints where you want in your code.
Then set a breakpoint in the main executable or at the beginning of the
active project. Take care of setting it in a way that it insure that all DLL
are loaded at that point. When you'll run it in Debug, some breakpoints will
be disabled but not that one. So it will stop at that point. Press CTRL-B to
show the breakpoints dialog box. Check all checkboxes to re-enable your
disabled breakpoints. Run/Continue -> That's it!

Why : VC++ cannot set BP on a DLL that is not loaded. When this DLL is the
active project, VC++ will wait for it to be loaded before enabling BP.
Otherwise you'll have to wait for the DLL to be loaded and then set BP.

HTH

-- Julien


----- Original Message ----- 
From: Per R. Andresen
To: vtkusers at vtk.org
Sent: Thursday, October 07, 2004 1:27 AM
Subject: [vtkusers] How to debug a vtk class (single step in code)?


Dear VTK users,
I've wrote a VTK class and would like to single step (debug) the Execute()
function in debug-mode. It's possible to set breakpoints, but the
breakpoints change to "question marks" (meaning "A breakpoint cannot be set
because the code at this location is not loaded") when running the program.

I'm running on Win XP using MS Visual Studio 2003 .net and compiled VTK
(4.4) with shared libs. It should be possible to single step in DLL's
according to the Visual Studio manual but apparently not VTK classes. Is
this due to the VTK object factory? If so, how does one debug VTK classes
(hopefully not with print statementsJ)?

Thanks in advance,
Per



_______________________________________________
This is the private VTK discussion list.
Please keep messages on-topic. Check the FAQ at:
<http://public.kitware.com/cgi-bin/vtkfaq>
Follow this link to subscribe/unsubscribe:
http://www.vtk.org/mailman/listinfo/vtkusers






From julien.alizier at free.fr  Thu Oct  7 03:26:27 2004
From: julien.alizier at free.fr (Julien Alizier (free.fr))
Date: Thu, 7 Oct 2004 09:26:27 +0200
Subject: [vtkusers] How to debug a vtk class (single step in code)?
References: <001101c4ac3c$7195bb70$0a46a8c0@Andresen>
Message-ID: <005c01c4ac3e$f5876ee0$7d9d7253@totoro>

Have you compiled yourself VTK's DLLs ? In Debug mode with the sources on
your hard drive ?

-- Julien


----- Original Message ----- 
From: "Per R. Andresen" <pra at trivision.dk>
To: "'Julien Alizier (free.fr)'" <julien.alizier at free.fr>;
<vtkusers at vtk.org>
Sent: Thursday, October 07, 2004 9:08 AM
Subject: RE: [vtkusers] How to debug a vtk class (single step in code)?


Dear Julien

Thanks for your reply. Unfortunately, I've already tried it. Both running
the exe-file as the active project and "letting" the DLL run the exe-file.
I've also placed a breakpoint at vtk<Class>->Update() in the main function
and tried to step into the class. The debugger correctly stops at the
breakpoint, but I'm not able to "step into" the class. This happens after
the class has been initialized with "SetNumberOfIterations" etc. (which
should ensure that the DLL is loaded).

None of it seems to work :( (I think it has something to do with the way the
class is allocated and called through the object factory).

/Per

-----Original Message-----
From: Julien Alizier (free.fr) [mailto:julien.alizier at free.fr]
Sent: 7. oktober 2004 08:19
To: Per R. Andresen; vtkusers at vtk.org
Subject: Re: [vtkusers] How to debug a vtk class (single step in code)?

Hi Per,

There are 2 ways in VC++ to debug shared libs :
1) The simpler (1 DLL) : Set your new dll as "Active Project". Set your
breakpoints wherever you want in your active project source files. When you
debug, specify the excutable you wish to run. The BP are then still active.
2) To step into multiple DLL : Set breakpoints where you want in your code.
Then set a breakpoint in the main executable or at the beginning of the
active project. Take care of setting it in a way that it insure that all DLL
are loaded at that point. When you'll run it in Debug, some breakpoints will
be disabled but not that one. So it will stop at that point. Press CTRL-B to
show the breakpoints dialog box. Check all checkboxes to re-enable your
disabled breakpoints. Run/Continue -> That's it!

Why : VC++ cannot set BP on a DLL that is not loaded. When this DLL is the
active project, VC++ will wait for it to be loaded before enabling BP.
Otherwise you'll have to wait for the DLL to be loaded and then set BP.

HTH

-- Julien


----- Original Message ----- 
From: Per R. Andresen
To: vtkusers at vtk.org
Sent: Thursday, October 07, 2004 1:27 AM
Subject: [vtkusers] How to debug a vtk class (single step in code)?


Dear VTK users,
I've wrote a VTK class and would like to single step (debug) the Execute()
function in debug-mode. It's possible to set breakpoints, but the
breakpoints change to "question marks" (meaning "A breakpoint cannot be set
because the code at this location is not loaded") when running the program.

I'm running on Win XP using MS Visual Studio 2003 .net and compiled VTK
(4.4) with shared libs. It should be possible to single step in DLL's
according to the Visual Studio manual but apparently not VTK classes. Is
this due to the VTK object factory? If so, how does one debug VTK classes
(hopefully not with print statementsJ)?

Thanks in advance,
Per



_______________________________________________
This is the private VTK discussion list.
Please keep messages on-topic. Check the FAQ at:
<http://public.kitware.com/cgi-bin/vtkfaq>
Follow this link to subscribe/unsubscribe:
http://www.vtk.org/mailman/listinfo/vtkusers




_______________________________________________
This is the private VTK discussion list.
Please keep messages on-topic. Check the FAQ at:
<http://public.kitware.com/cgi-bin/vtkfaq>
Follow this link to subscribe/unsubscribe:
http://www.vtk.org/mailman/listinfo/vtkusers





From pra at trivision.dk  Thu Oct  7 03:34:29 2004
From: pra at trivision.dk (Per R. Andresen)
Date: Thu, 7 Oct 2004 09:34:29 +0200
Subject: [vtkusers] How to debug a vtk class (single step in code)?
In-Reply-To: <005c01c4ac3e$f5876ee0$7d9d7253@totoro>
Message-ID: <001201c4ac40$14a0bf60$0a46a8c0@Andresen>

Yes and yes:), and I've also made a dependency from the main project to the
project that contains the vtk class.

Are you able to single step into a vtk class? What is your configuration
(compiler, operation system, etc)?

/Per

-----Original Message-----
From: Julien Alizier (free.fr) [mailto:julien.alizier at free.fr] 
Sent: 7. oktober 2004 09:26
To: Per R. Andresen; vtkusers at vtk.org
Subject: Re: [vtkusers] How to debug a vtk class (single step in code)?

Have you compiled yourself VTK's DLLs ? In Debug mode with the sources on
your hard drive ?

-- Julien


----- Original Message ----- 
From: "Per R. Andresen" <pra at trivision.dk>
To: "'Julien Alizier (free.fr)'" <julien.alizier at free.fr>;
<vtkusers at vtk.org>
Sent: Thursday, October 07, 2004 9:08 AM
Subject: RE: [vtkusers] How to debug a vtk class (single step in code)?


Dear Julien

Thanks for your reply. Unfortunately, I've already tried it. Both running
the exe-file as the active project and "letting" the DLL run the exe-file.
I've also placed a breakpoint at vtk<Class>->Update() in the main function
and tried to step into the class. The debugger correctly stops at the
breakpoint, but I'm not able to "step into" the class. This happens after
the class has been initialized with "SetNumberOfIterations" etc. (which
should ensure that the DLL is loaded).

None of it seems to work :( (I think it has something to do with the way the
class is allocated and called through the object factory).

/Per

-----Original Message-----
From: Julien Alizier (free.fr) [mailto:julien.alizier at free.fr]
Sent: 7. oktober 2004 08:19
To: Per R. Andresen; vtkusers at vtk.org
Subject: Re: [vtkusers] How to debug a vtk class (single step in code)?

Hi Per,

There are 2 ways in VC++ to debug shared libs :
1) The simpler (1 DLL) : Set your new dll as "Active Project". Set your
breakpoints wherever you want in your active project source files. When you
debug, specify the excutable you wish to run. The BP are then still active.
2) To step into multiple DLL : Set breakpoints where you want in your code.
Then set a breakpoint in the main executable or at the beginning of the
active project. Take care of setting it in a way that it insure that all DLL
are loaded at that point. When you'll run it in Debug, some breakpoints will
be disabled but not that one. So it will stop at that point. Press CTRL-B to
show the breakpoints dialog box. Check all checkboxes to re-enable your
disabled breakpoints. Run/Continue -> That's it!

Why : VC++ cannot set BP on a DLL that is not loaded. When this DLL is the
active project, VC++ will wait for it to be loaded before enabling BP.
Otherwise you'll have to wait for the DLL to be loaded and then set BP.

HTH

-- Julien


----- Original Message ----- 
From: Per R. Andresen
To: vtkusers at vtk.org
Sent: Thursday, October 07, 2004 1:27 AM
Subject: [vtkusers] How to debug a vtk class (single step in code)?


Dear VTK users,
I've wrote a VTK class and would like to single step (debug) the Execute()
function in debug-mode. It's possible to set breakpoints, but the
breakpoints change to "question marks" (meaning "A breakpoint cannot be set
because the code at this location is not loaded") when running the program.

I'm running on Win XP using MS Visual Studio 2003 .net and compiled VTK
(4.4) with shared libs. It should be possible to single step in DLL's
according to the Visual Studio manual but apparently not VTK classes. Is
this due to the VTK object factory? If so, how does one debug VTK classes
(hopefully not with print statementsJ)?

Thanks in advance,
Per



_______________________________________________
This is the private VTK discussion list.
Please keep messages on-topic. Check the FAQ at:
<http://public.kitware.com/cgi-bin/vtkfaq>
Follow this link to subscribe/unsubscribe:
http://www.vtk.org/mailman/listinfo/vtkusers




_______________________________________________
This is the private VTK discussion list.
Please keep messages on-topic. Check the FAQ at:
<http://public.kitware.com/cgi-bin/vtkfaq>
Follow this link to subscribe/unsubscribe:
http://www.vtk.org/mailman/listinfo/vtkusers








From kalyan.pushpala at wipro.com  Thu Oct  7 03:32:28 2004
From: kalyan.pushpala at wipro.com (kalyan.pushpala at wipro.com)
Date: Thu, 7 Oct 2004 13:02:28 +0530
Subject: [vtkusers] about vtkVolumeShearWarp
Message-ID: <FDBA3288011F564FA432D9FAF4083C95C45B93@blr-ecwhs-msg.wipro.com>


Hai all,

I downloaded vtkVolumeShearWarpmapper.cxx, vtkVolumeShearWarpmapper.h
and vtkOpenGLShearWarpMapper.cxx, .h files and wrote a program for
volume rendering using shearwarp mapper.
I put those files in my current folder in Windowsxp environment

While linking it is giving linker errors about these classes given below

ShearWarp.obj : error LNK2001: unresolved external symbol
"__declspec(dllimport) public: void __thiscall
vtkVolumeShearWarpMapper::SetFunctionTypeToComposite(void)"
(__imp_?SetFunctionTypeToComposite at vtkVolumeShearWarpMapper@@QAEXXZ)
ShearWarp.obj : error LNK2001: unresolved external symbol
"__declspec(dllimport) public: static class
vtkOpenGLVolumeShearWarpMapper * __cdecl
vtkOpenGLVolumeShearWarpMapper::New(void)"
(__imp_?New at vtkOpenGLVolumeShearWarpMapper@@SAPAV1 at XZ)
Debug/volShearWarp.exe : fatal error LNK1120: 2 unresolved externals
Error executing link.exe.


How to update this header files and . how can able to compile this
application

Thanking u in anticipation,

Regards
kalyan





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From julien.alizier at free.fr  Thu Oct  7 03:51:26 2004
From: julien.alizier at free.fr (Julien Alizier (free.fr))
Date: Thu, 7 Oct 2004 09:51:26 +0200
Subject: [vtkusers] How to debug a vtk class (single step in code)?
References: <001201c4ac40$14a0bf60$0a46a8c0@Andresen>
Message-ID: <007f01c4ac42$730cbc50$7d9d7253@totoro>

Yes.
I am developping plugins for ParaView 1.2.1 with VTK 4.4. So it is mainly
adding new classes to VTK and ParaView.
I use only shared libs with VC++ 6 SP5 on XP and 2000. But I tried on XP w/
VC 7 and it worked.

And I don't need any dependency (except linking of course) to the original
ParaView/VTK projects.

I can step into any class, since I have built the external DLL with the
source, VC++ finds itself the right cxx file and steps into it.

What is happening when you "step into" ? Does it show you the assembly ? Or
does it just skip and go to the next line ?

-- Julien



----- Original Message ----- 
From: "Per R. Andresen" <pra at trivision.dk>
To: "'Julien Alizier (free.fr)'" <julien.alizier at free.fr>;
<vtkusers at vtk.org>
Sent: Thursday, October 07, 2004 9:34 AM
Subject: RE: [vtkusers] How to debug a vtk class (single step in code)?


Yes and yes:), and I've also made a dependency from the main project to the
project that contains the vtk class.

Are you able to single step into a vtk class? What is your configuration
(compiler, operation system, etc)?

/Per

-----Original Message-----
From: Julien Alizier (free.fr) [mailto:julien.alizier at free.fr]
Sent: 7. oktober 2004 09:26
To: Per R. Andresen; vtkusers at vtk.org
Subject: Re: [vtkusers] How to debug a vtk class (single step in code)?

Have you compiled yourself VTK's DLLs ? In Debug mode with the sources on
your hard drive ?

-- Julien


----- Original Message ----- 
From: "Per R. Andresen" <pra at trivision.dk>
To: "'Julien Alizier (free.fr)'" <julien.alizier at free.fr>;
<vtkusers at vtk.org>
Sent: Thursday, October 07, 2004 9:08 AM
Subject: RE: [vtkusers] How to debug a vtk class (single step in code)?


Dear Julien

Thanks for your reply. Unfortunately, I've already tried it. Both running
the exe-file as the active project and "letting" the DLL run the exe-file.
I've also placed a breakpoint at vtk<Class>->Update() in the main function
and tried to step into the class. The debugger correctly stops at the
breakpoint, but I'm not able to "step into" the class. This happens after
the class has been initialized with "SetNumberOfIterations" etc. (which
should ensure that the DLL is loaded).

None of it seems to work :( (I think it has something to do with the way the
class is allocated and called through the object factory).

/Per

-----Original Message-----
From: Julien Alizier (free.fr) [mailto:julien.alizier at free.fr]
Sent: 7. oktober 2004 08:19
To: Per R. Andresen; vtkusers at vtk.org
Subject: Re: [vtkusers] How to debug a vtk class (single step in code)?

Hi Per,

There are 2 ways in VC++ to debug shared libs :
1) The simpler (1 DLL) : Set your new dll as "Active Project". Set your
breakpoints wherever you want in your active project source files. When you
debug, specify the excutable you wish to run. The BP are then still active.
2) To step into multiple DLL : Set breakpoints where you want in your code.
Then set a breakpoint in the main executable or at the beginning of the
active project. Take care of setting it in a way that it insure that all DLL
are loaded at that point. When you'll run it in Debug, some breakpoints will
be disabled but not that one. So it will stop at that point. Press CTRL-B to
show the breakpoints dialog box. Check all checkboxes to re-enable your
disabled breakpoints. Run/Continue -> That's it!

Why : VC++ cannot set BP on a DLL that is not loaded. When this DLL is the
active project, VC++ will wait for it to be loaded before enabling BP.
Otherwise you'll have to wait for the DLL to be loaded and then set BP.

HTH

-- Julien


----- Original Message ----- 
From: Per R. Andresen
To: vtkusers at vtk.org
Sent: Thursday, October 07, 2004 1:27 AM
Subject: [vtkusers] How to debug a vtk class (single step in code)?


Dear VTK users,
I've wrote a VTK class and would like to single step (debug) the Execute()
function in debug-mode. It's possible to set breakpoints, but the
breakpoints change to "question marks" (meaning "A breakpoint cannot be set
because the code at this location is not loaded") when running the program.

I'm running on Win XP using MS Visual Studio 2003 .net and compiled VTK
(4.4) with shared libs. It should be possible to single step in DLL's
according to the Visual Studio manual but apparently not VTK classes. Is
this due to the VTK object factory? If so, how does one debug VTK classes
(hopefully not with print statementsJ)?

Thanks in advance,
Per



_______________________________________________
This is the private VTK discussion list.
Please keep messages on-topic. Check the FAQ at:
<http://public.kitware.com/cgi-bin/vtkfaq>
Follow this link to subscribe/unsubscribe:
http://www.vtk.org/mailman/listinfo/vtkusers




_______________________________________________
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Please keep messages on-topic. Check the FAQ at:
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Follow this link to subscribe/unsubscribe:
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From pra at trivision.dk  Thu Oct  7 04:21:00 2004
From: pra at trivision.dk (Per R. Andresen)
Date: Thu, 7 Oct 2004 10:21:00 +0200
Subject: [vtkusers] How to debug a vtk class (single step in code)?
In-Reply-To: <007f01c4ac42$730cbc50$7d9d7253@totoro>
Message-ID: <001d01c4ac46$943b29d0$0a46a8c0@Andresen>

Hmmm... embarrassing... I've just turned on "generate debug info" and that
helps a lot :) My Cmake settings are apparently not correct for debug mode.

I've hadn't been able to solve it without your help. Thanks a lot!
Per

-----Original Message-----
From: Julien Alizier (free.fr) [mailto:julien.alizier at free.fr] 
Sent: 7. oktober 2004 09:51
To: Per R. Andresen; vtkusers at vtk.org
Subject: Re: [vtkusers] How to debug a vtk class (single step in code)?

Yes.
I am developping plugins for ParaView 1.2.1 with VTK 4.4. So it is mainly
adding new classes to VTK and ParaView.
I use only shared libs with VC++ 6 SP5 on XP and 2000. But I tried on XP w/
VC 7 and it worked.

And I don't need any dependency (except linking of course) to the original
ParaView/VTK projects.

I can step into any class, since I have built the external DLL with the
source, VC++ finds itself the right cxx file and steps into it.

What is happening when you "step into" ? Does it show you the assembly ? Or
does it just skip and go to the next line ?

-- Julien



----- Original Message ----- 
From: "Per R. Andresen" <pra at trivision.dk>
To: "'Julien Alizier (free.fr)'" <julien.alizier at free.fr>;
<vtkusers at vtk.org>
Sent: Thursday, October 07, 2004 9:34 AM
Subject: RE: [vtkusers] How to debug a vtk class (single step in code)?


Yes and yes:), and I've also made a dependency from the main project to the
project that contains the vtk class.

Are you able to single step into a vtk class? What is your configuration
(compiler, operation system, etc)?

/Per

-----Original Message-----
From: Julien Alizier (free.fr) [mailto:julien.alizier at free.fr]
Sent: 7. oktober 2004 09:26
To: Per R. Andresen; vtkusers at vtk.org
Subject: Re: [vtkusers] How to debug a vtk class (single step in code)?

Have you compiled yourself VTK's DLLs ? In Debug mode with the sources on
your hard drive ?

-- Julien


----- Original Message ----- 
From: "Per R. Andresen" <pra at trivision.dk>
To: "'Julien Alizier (free.fr)'" <julien.alizier at free.fr>;
<vtkusers at vtk.org>
Sent: Thursday, October 07, 2004 9:08 AM
Subject: RE: [vtkusers] How to debug a vtk class (single step in code)?


Dear Julien

Thanks for your reply. Unfortunately, I've already tried it. Both running
the exe-file as the active project and "letting" the DLL run the exe-file.
I've also placed a breakpoint at vtk<Class>->Update() in the main function
and tried to step into the class. The debugger correctly stops at the
breakpoint, but I'm not able to "step into" the class. This happens after
the class has been initialized with "SetNumberOfIterations" etc. (which
should ensure that the DLL is loaded).

None of it seems to work :( (I think it has something to do with the way the
class is allocated and called through the object factory).

/Per

-----Original Message-----
From: Julien Alizier (free.fr) [mailto:julien.alizier at free.fr]
Sent: 7. oktober 2004 08:19
To: Per R. Andresen; vtkusers at vtk.org
Subject: Re: [vtkusers] How to debug a vtk class (single step in code)?

Hi Per,

There are 2 ways in VC++ to debug shared libs :
1) The simpler (1 DLL) : Set your new dll as "Active Project". Set your
breakpoints wherever you want in your active project source files. When you
debug, specify the excutable you wish to run. The BP are then still active.
2) To step into multiple DLL : Set breakpoints where you want in your code.
Then set a breakpoint in the main executable or at the beginning of the
active project. Take care of setting it in a way that it insure that all DLL
are loaded at that point. When you'll run it in Debug, some breakpoints will
be disabled but not that one. So it will stop at that point. Press CTRL-B to
show the breakpoints dialog box. Check all checkboxes to re-enable your
disabled breakpoints. Run/Continue -> That's it!

Why : VC++ cannot set BP on a DLL that is not loaded. When this DLL is the
active project, VC++ will wait for it to be loaded before enabling BP.
Otherwise you'll have to wait for the DLL to be loaded and then set BP.

HTH

-- Julien


----- Original Message ----- 
From: Per R. Andresen
To: vtkusers at vtk.org
Sent: Thursday, October 07, 2004 1:27 AM
Subject: [vtkusers] How to debug a vtk class (single step in code)?


Dear VTK users,
I've wrote a VTK class and would like to single step (debug) the Execute()
function in debug-mode. It's possible to set breakpoints, but the
breakpoints change to "question marks" (meaning "A breakpoint cannot be set
because the code at this location is not loaded") when running the program.

I'm running on Win XP using MS Visual Studio 2003 .net and compiled VTK
(4.4) with shared libs. It should be possible to single step in DLL's
according to the Visual Studio manual but apparently not VTK classes. Is
this due to the VTK object factory? If so, how does one debug VTK classes
(hopefully not with print statementsJ)?

Thanks in advance,
Per



_______________________________________________
This is the private VTK discussion list.
Please keep messages on-topic. Check the FAQ at:
<http://public.kitware.com/cgi-bin/vtkfaq>
Follow this link to subscribe/unsubscribe:
http://www.vtk.org/mailman/listinfo/vtkusers




_______________________________________________
This is the private VTK discussion list.
Please keep messages on-topic. Check the FAQ at:
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Follow this link to subscribe/unsubscribe:
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From sigmunau at idi.ntnu.no  Thu Oct  7 05:00:24 2004
From: sigmunau at idi.ntnu.no (sigmunau at idi.ntnu.no)
Date: Thu, 7 Oct 2004 11:00:24 +0200
Subject: [vtkusers] [Bug report] vtkIterativeClosestPointTransform does not
	respect the SetLocator() method
Message-ID: <20041007090024.GA5956@hobbes>

Reading the sourcecode of vtkIterativeClosestPointTransform it stikes me
that the InternalUpdate() method (the only method that ever uses the
locator) allways call the CreateDefaultLocator() and then set this new
locators parameters. The CreateDefaultLocator method also cleans and removes
any locator set by the SetLocator method. You also can not call
CreateDefaultLocator yourself and then change it's parameters through
GetLocator() cause even this will be overwritten by InternalUpdate()

Thanks for your replys

Sigmund Augdal

btw: I tried to send this mail once before from a different address than the
one I'm subscribed with. That mail can safly be refused by the moderators


From denhuys at hotmail.com  Thu Oct  7 06:04:45 2004
From: denhuys at hotmail.com (Toon Huysmans)
Date: Thu, 7 Oct 2004 12:04:45 +0200
Subject: [vtkusers] display bmp file
References: <009a01c4ac1f$85788bd0$37ac6ac8@arwen>
Message-ID: <BAY14-DAV16kIN4MmXK000085fe@hotmail.com>

Hi John,

    Maybe you could use an ImageActor to display your image instead of using a textured plane:
    
    http://www.vtk.org/doc/nightly/html/classvtkImageActor.html

Greetings 

Toon.
    
  ----- Original Message ----- 
  From: John Mosso 
  To: vtkusers at vtk.org 
  Sent: Thursday, October 07, 2004 5:41 AM
  Subject: [vtkusers] display bmp file


  Greetings!
  I'm VTK freshman (know nothing so far!)
  I have an MFC app and I'm trying to display a bmp file using VTK. This is the code I'm using for:

   bmpReader = vtkBMPReader::New();
   bmpReader->SetFileName("C:\\MyFile.bmp");
   atext = vtkTexture::New();
   atext->SetInput(bmpReader->GetOutput());
   plane = vtkPlaneSource::New();
   planeMapper = vtkPolyDataMapper::New();
   planeMapper->SetInput(plane->GetOutput());
   ActorImage = vtkActor::New();
   ActorImage->SetMapper(planeMapper);
   ActorImage->SetTexture(atext);
   ren->AddActor(ActorImage);

  This code display the file but it does not conserve lenght-heigth relationship (it's a square!) and centered; plus, I want to display the file starting at the left corner of the window and full size. Does anyone have any suggestions? 

  Thanks in advance.

  John Mosso








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From jfavre at cscs.ch  Thu Oct  7 09:42:12 2004
From: jfavre at cscs.ch (Jean M. Favre)
Date: Thu, 07 Oct 2004 15:42:12 +0200
Subject: [vtkusers] vtkPDataSetWriter Question
In-Reply-To: <a6bc6cc04100612483360c6c3@mail.gmail.com>
References: <a6bc6cc04100612483360c6c3@mail.gmail.com>
Message-ID: <416547B4.8060102@cscs.ch>

Jeremy Stout wrote:
> Hello, I am working with an unstructured grid that contains several
> hundred thousand cells. I would like to partition this grid and store
> it in vtk's parallel file format....

> What I am wondering is whether this class will
> intelligently partition my grid or if I need to do that myself.

Check out vtkDistributedDataFilter. This filter redistributes data among 
processors in a parallel application into spatially contiguous 
vtkUnstructuredGrids.

http://www.vtk.org/doc/nightly/html/classvtkDistributedDataFilter.html

-- 
Dr. Jean M. Favre,                            email:favre @ cscs.ch
http://www.cscs.ch/about/Favre.php
CSCS, Swiss National Supercomputing Centre  | Tel:  +41 (91) 610.82.40
Via Cantonale, 6928 Manno, Switzerland      | Fax:  +41 (91) 610.82.82



From lflong at doc.ic.ac.uk  Thu Oct  7 09:54:33 2004
From: lflong at doc.ic.ac.uk (Longfei Cong)
Date: Thu, 7 Oct 2004 14:54:33 +0100
Subject: [vtkusers] surface with vector
Message-ID: <00c101c4ac75$2ca553c0$9c05a992@win.doc.ic.ac.uk>

Hi everyone:
I want to visual a surface with normal vector on it. Is that  vtkGlyph3D should be used here? I am  working on the windows. Could someone give  me some examples?
        Thanks a lot!
    longfeicong
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From rohlof at gmx.de  Thu Oct  7 12:08:37 2004
From: rohlof at gmx.de (Timo Frenzel)
Date: Thu, 7 Oct 2004 18:08:37 +0200 (MEST)
Subject: [vtkusers] (no subject)
Message-ID: <30205.1097165317@www65.gmx.net>

Hi,

i'm trying to handle some pointdata of an image-based volume (like medical
in the vtk-examples) after picking it.
To get the data i created a callback function like pointpicker:

static	vtkActor		*m_coneActor1;

class vtkMyCallback : public vtkCommand
{
public:
	vtkMyCallback::vtkMyCallback() { };
	static vtkMyCallback *New() { return new vtkMyCallback; }

public:	
       virtual void Execute(vtkObject *caller, unsigned long, void*)
	{
		vtkRenderWindowInteractor *m_iren =
reinterpret_cast<vtkRenderWindowInteractor*>(caller);
		vtkPointPicker *m_ppicker = (vtkPointPicker *)m_iren->GetPicker();
		if (m_ppicker->GetPointId() != -1)
		{
			int m_pointID = m_ppicker -> GetPointId();
			float m_pointValue[3];

			m_ppicker -> GetPickPosition(m_pointValue);
                        m_coneActor1 ->
SetPosition(m_ppicker->GetPickPosition());


			otherclassfunction -> Pick3DPointID(&m_pointID);
			otherclassfunction -> Pick3DPointValue(&m_pointValue[0],
&m_pointValue[1], &m_pointValue[2]);
		}
      }
};

With this code, i get a pointID (pointpicker) and the position. After i left
the callback function the association of the pointID with the coordinates
seems not to be the same.
Cause if i try to re-get the coordinates with this code...

vtkPoints *m_points;
m_points = vtkPoints::New();
m_points -> GetPoint(pointID, p0); //pointID from callback function

...i get a access violation. (debugging shows that the ID is not allocated.)


is it, cause there are no points defined? are cells defined and how can i
access the pointID and the coordinates like pointpicker do?

thx for help. timo frenzel.

-- 
+++ GMX DSL Premiumtarife 3 Monate gratis* + WLAN-Router 0,- EUR* +++
Clevere DSL-Nutzer wechseln jetzt zu GMX: http://www.gmx.net/de/go/dsl



From prashanth.dumpuri at vanderbilt.edu  Thu Oct  7 07:18:24 2004
From: prashanth.dumpuri at vanderbilt.edu (Prashanth)
Date: Thu, 07 Oct 2004 11:18:24 +0000
Subject: [vtkusers] surface with vector
In-Reply-To: <20041007160012.3C5232F8F2@public.kitware.com>
References: <20041007160012.3C5232F8F2@public.kitware.com>
Message-ID: <1097147904.28549.66.camel@snarltux>

Look into vtkHedgeHog. There is a similar question in the September 2004
archives. Hope this helps,
Prashanth
-----------------------------------------
Message: 6
Date: Thu, 7 Oct 2004 14:54:33 +0100
From: "Longfei Cong" <lflong at doc.ic.ac.uk>
Subject: [vtkusers] surface with vector
To: <vtkusers at vtk.org>
Message-ID: <00c101c4ac75$2ca553c0$9c05a992 at win.doc.ic.ac.uk>
Content-Type: text/plain; charset="iso-8859-1"

Hi everyone:
I want to visual a surface with normal vector on it. Is that  vtkGlyph3D
should be used here? I am  working on the windows. Could someone give 
me some examples?
        Thanks a lot!
    longfeicong



From beau.sapach at ualberta.ca  Thu Oct  7 12:18:41 2004
From: beau.sapach at ualberta.ca (Beau Sapach)
Date: Thu, 7 Oct 2004 10:18:41 -0600
Subject: [vtkusers] vtkInteractorStyleUser
Message-ID: <200410071616.i97GGhKm024639@pilsener.srv.ualberta.ca>

Hello,

Anyone out there have a working example of using vtkInteractorStyleUser?  I
can't seem to make it go, but then again I'm no C++ guru.  Particularly I
want to use SetLeftButtonPressMethod() to point it to my own function, but I
keep getting this error:

'SetLeftButtonPressMethod' : cannot convert parameter 1 from 'void' to 'void
(__cdecl *)(void *)'

Thanks in advance!

Beau



From rohlof at gmx.de  Thu Oct  7 12:53:51 2004
From: rohlof at gmx.de (Timo Frenzel)
Date: Thu, 7 Oct 2004 18:53:51 +0200 (MEST)
Subject: [vtkusers] Getting Data (ID, Position, Normals) from a Volume.
Message-ID: <21282.1097168031@www58.gmx.net>

Hi,

i'm trying to handle some pointdata of an image-based volume (like medical
in the vtk-examples) after picking it.
To get the data i created a callback function like pointpicker:

static    vtkActor        *m_coneActor1;

class vtkMyCallback : public vtkCommand
{
public:
    vtkMyCallback::vtkMyCallback() { };
    static vtkMyCallback *New() { return new vtkMyCallback; }

public:    
       virtual void Execute(vtkObject *caller, unsigned long, void*)
    {
        vtkRenderWindowInteractor *m_iren =
reinterpret_cast<vtkRenderWindowInteractor*>(caller);
        vtkPointPicker *m_ppicker = (vtkPointPicker *)m_iren->GetPicker();
        if (m_ppicker->GetPointId() != -1)
        {
            int m_pointID = m_ppicker -> GetPointId();
            float m_pointValue[3];

            m_ppicker -> GetPickPosition(m_pointValue);
                        m_coneActor1 ->
SetPosition(m_ppicker->GetPickPosition());


            otherclassfunction -> Pick3DPointID(&m_pointID);
            otherclassfunction -> Pick3DPointValue(&m_pointValue[0],
&m_pointValue[1], &m_pointValue[2]);
        }
      }
};

With this code, i get a pointID (pointpicker) and the position. After i left
the callback function the association of the pointID with the coordinates
seems not to be the same.
Cause if i try to re-get the coordinates with this code...

vtkPoints *m_points;
m_points = vtkPoints::New();
m_points -> GetPoint(pointID, p0); //pointID from callback function

....i get a access violation. (debugging shows that the ID is not
allocated.)


is it, cause there are no points defined? are cells defined and how can i
access the pointID and the coordinates like pointpicker do?

thx for help. timo frenzel.

-- 
+++ GMX DSL Premiumtarife 3 Monate gratis* + WLAN-Router 0,- EUR* +++
Clevere DSL-Nutzer wechseln jetzt zu GMX: http://www.gmx.net/de/go/dsl



From lflong at doc.ic.ac.uk  Thu Oct  7 14:55:24 2004
From: lflong at doc.ic.ac.uk (Longfei Cong)
Date: Thu, 7 Oct 2004 19:55:24 +0100
Subject: [vtkusers] (no subject)
Message-ID: <00f701c4ac9f$33d5e590$9c05a992@win.doc.ic.ac.uk>

Hi everyone

        I want to visual a vtkPolyData surface with  vector on each of the points on the surface mesh.
Wish for some one to help me. Thanks in advance! 
longfei
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From prashanth.dumpuri at vanderbilt.edu  Thu Oct  7 10:37:52 2004
From: prashanth.dumpuri at vanderbilt.edu (Prashanth)
Date: Thu, 07 Oct 2004 14:37:52 +0000
Subject: [vtkusers] surface with vector
In-Reply-To: <00e701c4ac9e$f4cc3390$9c05a992@win.doc.ic.ac.uk>
References: <20041007160012.3C5232F8F2@public.kitware.com>
	<1097147904.28549.66.camel@snarltux>
	<00e701c4ac9e$f4cc3390$9c05a992@win.doc.ic.ac.uk>
Message-ID: <1097159871.2618.25.camel@snarltux>

Longfei Cong,
  I'm a newbie. There might be better ways to do what you wanna do, but
this works for me.Here'a a sample tcl script.
----------------------------------
# this reads in your polydata
vtkPolyData reader
  reader SetFileName <your poly_data>
# this generates the normals
vtkPolyDataNormals normals
  normals SetInput [reader GetOutput]
  normals FlipNormalsOff
  normals SplittingOff
  normals Update
# i'm using normals as input to the hedgehog.you can use vectors.
# look into the 'SetVectorMode' function
vtkHedgeHog hog
  hog SetInput [normals GetOutput]
  # sets the size of oriented lines.
  hog ScaleFactor <scale_factor>
  hog Update
# mapper for the polydata
vtkPolyDataMapper mapper
  mapper SetInput [reader GetOutput]
# mapper for the hedgehog
vtkPolyDataMapper hog_mapper
  hog_mapper SetInput [hog GetOutput]
  eval hog_mapper SetScalarRange [[hog GetOutput] GetScalarRange]
  hog_mapper ImmediateModeRenderingOn
# actors
vtkActor hog_actor
  hog_actor SetMapper hog_mapper
  # you can play around with the properties
  [hog_actor GetProperty] SetDiffuseColor 0 0 1
vtkActor actor
  actor SetMapper mapper
vtkRenderer ren
  ren AddActor hog_actor
  ren AddActor actor
vtkRenderWindow renwin
  renwin AddRenderer ren
vtkRenderWindowInteractor iren
  iren SetRenderWindow renwin
  iren Initialize
  iren AddObserver UserEvent {wm deiconify .vtkInteract}

  renwin Render
------------------------------------------------------------------------
Hope this helps. I'm a newbie. There might be better ways to do what you
wanna do, but this works for me.
Thanks,
Prashanth

On Thu, 2004-10-07 at 18:53, Longfei Cong wrote:
> Hi:
>    Thank your for your answer first. But i find the similar in the maillist.
> Maybe i donot describe my problem well. I want to visual a vtkPolyData
> surface with  vector on each of the points on the surface mesh.
> wish for your help
> 
> ----- Original Message -----
> From: "Prashanth" <prashanth.dumpuri at vanderbilt.edu>
> To: <vtkusers at vtk.org>; <lflong at doc.ic.ac.uk>
> Sent: Thursday, October 07, 2004 12:18 PM
> Subject: Re:[vtkusers] surface with vector
> 
> 
> > Look into vtkHedgeHog. There is a similar question in the September 2004
> > archives. Hope this helps,
> > Prashanth
> > -----------------------------------------
> > Message: 6
> > Date: Thu, 7 Oct 2004 14:54:33 +0100
> > From: "Longfei Cong" <lflong at doc.ic.ac.uk>
> > Subject: [vtkusers] surface with vector
> > To: <vtkusers at vtk.org>
> > Message-ID: <00c101c4ac75$2ca553c0$9c05a992 at win.doc.ic.ac.uk>
> > Content-Type: text/plain; charset="iso-8859-1"
> >
> > Hi everyone:
> > I want to visual a surface with normal vector on it. Is that  vtkGlyph3D
> > should be used here? I am  working on the windows. Could someone give
> > me some examples?
> >         Thanks a lot!
> >     longfeicong
> >
> >
> 



From lucapl at rc.unesp.br  Thu Oct  7 15:33:38 2004
From: lucapl at rc.unesp.br (Luca Pallozzi Lavorante)
Date: Thu, 07 Oct 2004 16:33:38 -0300
Subject: [vtkusers] vtkMath::Jacobi in Tcl/Tk
Message-ID: <41659A12.7060906@rc.unesp.br>

Hi everybody,
I?d like to use the vtkMath?s Jacobi method in a Tcl/Tk script, but I 
don?t know how to pass it the proper arguments.
In the documentation I?ve seen that in C++ I?d use the following:

    vtkMath::Jacobi (  float **    /a/, float *    /w/, float **    /v/ )

which I have successfully tested.
|
|But how to do it in Tcl/Tk?

Thanks for any help.

   Luca P. Lavorante


From kerekes at fastmail.fm  Thu Oct  7 16:19:08 2004
From: kerekes at fastmail.fm (Kate Kerekes)
Date: Thu, 7 Oct 2004 16:19:08 -0400
Subject: [vtkusers] timings for vtkImageReader2
Message-ID: <003101c4acaa$e851cfb0$0300a8c0@kerekeslaptop>

Hello again,

I apologize for the length of this message.  I am still having problems with
the time it takes vtkImageReader2 to read 268 MB of data (a series of 512
files with 512x512 shorts each.)  I ran the following test program (from
Mathieu Malaterre  translated to tcl by me) to see how long a read takes:

#!/bin/sh
load vtkCommonTCL.dll
load vtkFilteringTCL.dll
load vtkGraphicsTCL.dll
load vtkIOTCL.dll
load vtkImagingTCL.dll
load vtkRenderingTCL.dll
load vtkHybridTCL.dll
source Interactor.tcl
source bindings-rw.tcl
source bindings-iw.tcl
source bindings.tcl
source setget.tcl
 
console show

set createImage yes

if {$createImage=="yes"} {
vtkImageNoiseSource noise
   noise SetWholeExtent 0 511 0 511 0 511
   noise SetMinimum 0.0
   noise SetMaximum 1.0
   [noise GetOutput] ReleaseDataFlagOn
   puts "about to update vtkImageNoiseSource"
   noise Update
   puts "finished updating vtkImageNoiseSource"
 
   vtkImageCast cast
   cast SetInput [noise GetOutput]
   cast SetOutputScalarTypeToUnsignedShort 
 
   vtkImageWriter writer
   writer SetInput [cast GetOutput]
   writer SetFileDimensionality 3
   writer SetFileName "bench.img"
   puts "about to update writer"
   writer Write
   puts "finished updating writer"
}
 
   vtkImageReader2 reader
   [reader GetOutput] ReleaseDataFlagOn
   reader SetDataExtent 0 511 0 511 0 511
   reader SetDataScalarTypeToUnsignedShort
   reader SetDataByteOrderToLittleEndian
   reader SetFileName "bench.img"

   puts "about to update reader"
   set time1 [clock clicks -milliseconds]
   reader Update
   set time2 [clock clicks -milliseconds]
   puts "finished updating reader"
   puts "reader update took [expr $time2-$time1] milliseconds"

The read takes 15 seconds on my machine (Windows XP with service pack 2, AMD
athlon 64 chipset 3000+, with 512 megs of memory).  I am reading data from
the IDE harddrive.  Mathieu's timing was 3 seconds.  This of course is not
the newest machine out there, but it is not that old either.

Then when I try to read my series of slices, my machine takes 45 seconds.
The only difference in reading the slice files and the bench.img created by
ImageNoiseSource is that the bench.img is all three dimensions in one file
(rather than a series of slices), and the bench.img file uses unsigned
shorts rather than shorts (but both are 2 bytes, right?).

So here are my thoughts as to why the problem could be occurring--any
feedback would be appreciated:
1.  my computer is too slow--I don't think this is it
2.  the bench.img file only reads faster because it has just been written to
memory and is probably still in the cache and therefore takes less time to
access
3.  the fact that my slices are in series and 512 different files have to be
read is the slow down
4.  the code running in tcl is slower than code running in c (I can fix this
by calling a c function from tcl--but only if I think this is really the
problem)
5.  there is some other problem that I am unaware of--this is my worst fear
:(

Please help!  All of the other feedback I have gotten before says that the
read should take no more than a few seconds.  45 seconds is way too long for
our customer and this is not even the largest filesize that will be used.

Thanks,
Kate Kerekes





From kerekes at fastmail.fm  Thu Oct  7 16:22:34 2004
From: kerekes at fastmail.fm (Kate Kerekes)
Date: Thu, 7 Oct 2004 16:22:34 -0400
Subject: [vtkusers] one more thing--timing ImageReader2
Message-ID: <003201c4acab$61643a00$0300a8c0@kerekeslaptop>

I forgot to say that I am using the binary installation of vtk for windows
that came with the book (4.2).  

 

Kate Kerekes

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From David.Pont at forestresearch.co.nz  Thu Oct  7 16:25:44 2004
From: David.Pont at forestresearch.co.nz (David.Pont at forestresearch.co.nz)
Date: Fri, 8 Oct 2004 09:25:44 +1300
Subject: [vtkusers] display bmp file
In-Reply-To: <009a01c4ac1f$85788bd0$37ac6ac8@arwen>
Message-ID: <OF5B4CDE57.FBFCC2F3-ONCC256F26.006E53C3-CC256F26.007052D9@forestresearch.co.nz>





Hi John,
  the following code fragment might help (presuming vtkBMPReader has
GetDataExtent). Basically get the image dimensions and use to size the
vtkPlaneSource. Different specification of Point0,1, 2 will give different
location of the image relative to the origin, eg: 0,0,0  ImageWidth,0,0
0,ImageHeight,0 would place bottom left corner at the origin. You can also
use other vtkPlaneSource methods, and/or vtkTransform to move the plane
around. This may only be important if you need to place the image relative
to other actors, it sounds like you just need to dimension the plane
correctly.

  Dave P

  int k, tiffExtent[6];
  TIFFReader->GetDataExtent( tiffExtent );
  for( k=0; k<4; k+=2 ) {
      tiffExtent[k] = tiffExtent[k+1]-tiffExtent[k];
  }
  // save width and height
  ImageWidth  = (tiffExtent[0] + 1);    // without +1 get 1023 722, not
1024, 723 for T112U07t1.tif
  ImageHeight = (tiffExtent[2] + 1);

  // define the plane
  // P2----.
  // |     |
  // |  C  |
  // |     |
  // P0---P1

  float w2, h2;

  // set image corners so centered at origin
  w2 = ImageWidth/2.0;
  h2 = ImageHeight/2.0;
  Plane->SetPoint0( -w2, -h2, 0 );
  Plane->SetPoint1(  w2, -h2, 0 );
  Plane->SetPoint2( -w2,  h2, 0 );



"John Mosso" <j-mosso at uniandes.edu.co> wrote on 07/10/2004 16:41:24:

> Greetings!
> I'm VTK freshman (know nothing so far!)
> I have an MFC app and I'm trying to display a bmp file using VTK.
> This is the code I'm using for:
>
>  bmpReader = vtkBMPReader::New();
>  bmpReader->SetFileName("C:\\MyFile.bmp");
>  atext = vtkTexture::New();
>  atext->SetInput(bmpReader->GetOutput());
>  plane = vtkPlaneSource::New();
>  planeMapper = vtkPolyDataMapper::New();
>  planeMapper->SetInput(plane->GetOutput());
>  ActorImage = vtkActor::New();
>  ActorImage->SetMapper(planeMapper);
>  ActorImage->SetTexture(atext);
>  ren->AddActor(ActorImage);
> This code display the file but it does not conserve lenght-heigth
> relationship (it's a square!) and centered; plus, I want to display
> the file starting at the left corner of the window and full size.
> Does anyone have any suggestions?
>
> Thanks in advance.
>
> John Mosso
>
>
>
>
>
>  _______________________________________________
> This is the private VTK discussion list.
> Please keep messages on-topic. Check the FAQ at: <http://public.
> kitware.com/cgi-bin/vtkfaq>
> Follow this link to subscribe/unsubscribe:
> http://www.vtk.org/mailman/listinfo/vtkusers



From mcoursolle at yahoo.ca  Thu Oct  7 16:49:43 2004
From: mcoursolle at yahoo.ca (Mathieu Coursolle)
Date: Thu, 7 Oct 2004 16:49:43 -0400 (EDT)
Subject: [vtkusers] How to display a line which size and position is defined
	in normalized viewport coordinates.
Message-ID: <20041007204943.46680.qmail@web60204.mail.yahoo.com>

Hi,
I have a multiple renderers window and need to draw a line between
those.
How can I draw a line between the two renderers.
I tried to use a vtkActor2D combined with a vtkLineSource
but I was only able to set the line size and position in display
coordinates, which is not good if the window is resized.
Is there a way to display it in normalized viewport coordinates?
Thank you.
 
Mathieu



---------------------------------
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From sey_ai at hotmail.com  Thu Oct  7 17:52:13 2004
From: sey_ai at hotmail.com (ai amano)
Date: Thu, 07 Oct 2004 16:52:13 -0500
Subject: [vtkusers] how can i read image .raw???
Message-ID: <BAY18-F30rjbudzxxfY0000c877@hotmail.com>

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From bhiron at lsuhsc.edu  Thu Oct  7 20:08:01 2004
From: bhiron at lsuhsc.edu (Budd Hirons)
Date: Thu, 07 Oct 2004 19:08:01 -0500
Subject: [vtkusers] timings for vtkImageReader2
In-Reply-To: <003101c4acaa$e851cfb0$0300a8c0@kerekeslaptop>
References: <003101c4acaa$e851cfb0$0300a8c0@kerekeslaptop>
Message-ID: <4165DA61.4080007@lsuhsc.edu>

3 seconds! you have to let me in on your secret!

UltraATA maximum transfer in the DMA mode 5 is only 100MB/s, so I guess 
it is possible, but unlikely, to read this in 3 seconds.  I ran this 
exercise on two machines, compiled from C++.

machine 1 (p4,ultraATA drive on board,DMA,DDR ram) - 18s read
machine 2 (dual Xeon,SCSI on PCI adapter,no DMA,pc133 ram) - 66s read

We regularly deal with volumes that exceed this one in size, and range 
to 800 megs on disk.  Load times to get very large chunks of data into 
can ram vary wildly, but it should not be expected to happen 
instantaneously.  45 seconds for larger datasets would not be off the 
mark in release on random equipment and with other processes likely running.

Cheers,
Budd.



Kate Kerekes wrote:
> Hello again,
> 
> I apologize for the length of this message.  I am still having problems with
> the time it takes vtkImageReader2 to read 268 MB of data (a series of 512
> files with 512x512 shorts each.)  I ran the following test program (from
> Mathieu Malaterre  translated to tcl by me) to see how long a read takes:
> 
> #!/bin/sh
> load vtkCommonTCL.dll
> load vtkFilteringTCL.dll
> load vtkGraphicsTCL.dll
> load vtkIOTCL.dll
> load vtkImagingTCL.dll
> load vtkRenderingTCL.dll
> load vtkHybridTCL.dll
> source Interactor.tcl
> source bindings-rw.tcl
> source bindings-iw.tcl
> source bindings.tcl
> source setget.tcl
>  
> console show
> 
> set createImage yes
> 
> if {$createImage=="yes"} {
> vtkImageNoiseSource noise
>    noise SetWholeExtent 0 511 0 511 0 511
>    noise SetMinimum 0.0
>    noise SetMaximum 1.0
>    [noise GetOutput] ReleaseDataFlagOn
>    puts "about to update vtkImageNoiseSource"
>    noise Update
>    puts "finished updating vtkImageNoiseSource"
>  
>    vtkImageCast cast
>    cast SetInput [noise GetOutput]
>    cast SetOutputScalarTypeToUnsignedShort 
>  
>    vtkImageWriter writer
>    writer SetInput [cast GetOutput]
>    writer SetFileDimensionality 3
>    writer SetFileName "bench.img"
>    puts "about to update writer"
>    writer Write
>    puts "finished updating writer"
> }
>  
>    vtkImageReader2 reader
>    [reader GetOutput] ReleaseDataFlagOn
>    reader SetDataExtent 0 511 0 511 0 511
>    reader SetDataScalarTypeToUnsignedShort
>    reader SetDataByteOrderToLittleEndian
>    reader SetFileName "bench.img"
> 
>    puts "about to update reader"
>    set time1 [clock clicks -milliseconds]
>    reader Update
>    set time2 [clock clicks -milliseconds]
>    puts "finished updating reader"
>    puts "reader update took [expr $time2-$time1] milliseconds"
> 
> The read takes 15 seconds on my machine (Windows XP with service pack 2, AMD
> athlon 64 chipset 3000+, with 512 megs of memory).  I am reading data from
> the IDE harddrive.  Mathieu's timing was 3 seconds.  This of course is not
> the newest machine out there, but it is not that old either.
> 
> Then when I try to read my series of slices, my machine takes 45 seconds.
> The only difference in reading the slice files and the bench.img created by
> ImageNoiseSource is that the bench.img is all three dimensions in one file
> (rather than a series of slices), and the bench.img file uses unsigned
> shorts rather than shorts (but both are 2 bytes, right?).
> 
> So here are my thoughts as to why the problem could be occurring--any
> feedback would be appreciated:
> 1.  my computer is too slow--I don't think this is it
> 2.  the bench.img file only reads faster because it has just been written to
> memory and is probably still in the cache and therefore takes less time to
> access
> 3.  the fact that my slices are in series and 512 different files have to be
> read is the slow down
> 4.  the code running in tcl is slower than code running in c (I can fix this
> by calling a c function from tcl--but only if I think this is really the
> problem)
> 5.  there is some other problem that I am unaware of--this is my worst fear
> :(
> 
> Please help!  All of the other feedback I have gotten before says that the
> read should take no more than a few seconds.  45 seconds is way too long for
> our customer and this is not even the largest filesize that will be used.
> 
> Thanks,
> Kate Kerekes
> 
> 
> 
> _______________________________________________
> This is the private VTK discussion list. 
> Please keep messages on-topic. Check the FAQ at: <http://public.kitware.com/cgi-bin/vtkfaq>
> Follow this link to subscribe/unsubscribe:
> http://www.vtk.org/mailman/listinfo/vtkusers
> 


From stout.jeremy at gmail.com  Fri Oct  8 00:06:41 2004
From: stout.jeremy at gmail.com (Jeremy Stout)
Date: Fri, 8 Oct 2004 00:06:41 -0400
Subject: [vtkusers] vtkPDataSetWriter Question
In-Reply-To: <416547B4.8060102@cscs.ch>
References: <a6bc6cc04100612483360c6c3@mail.gmail.com>
	<416547B4.8060102@cscs.ch>
Message-ID: <a6bc6cc041007210646be0b94@mail.gmail.com>

Thank you for that reference. The files for vtkDistributedDataFilter
do not seem to be included in my distribution of vtk.

Looking over that class, it seems to do exactly what I want it to do.
Unfortunately, I'm having some trouble understanding how the data is
supposed to be arranged among the processes before I apply the filter.
If I am reading the documentation correctly, each process should have
its own chunk of the larger unstructured grid. You then apply the
fiter so you get spatially contiguous unstructured grids. The problem
is that I am reading from a legacy ASCII VTK file, which does not seem
to support reading in "just a piece".  Would it just be possible for
me to read the data file in on the first process and then apply the
filter?

Jeremy Stout

On Thu, 07 Oct 2004 15:42:12 +0200, Jean M. Favre <jfavre at cscs.ch> wrote:
> Jeremy Stout wrote:
> > Hello, I am working with an unstructured grid that contains several
> > hundred thousand cells. I would like to partition this grid and store
> > it in vtk's parallel file format....
> 
> > What I am wondering is whether this class will
> > intelligently partition my grid or if I need to do that myself.
> 
> Check out vtkDistributedDataFilter. This filter redistributes data among
> processors in a parallel application into spatially contiguous
> vtkUnstructuredGrids.
> 
> http://www.vtk.org/doc/nightly/html/classvtkDistributedDataFilter.html
> 
> --
> Dr. Jean M. Favre,                            email:favre @ cscs.ch
> http://www.cscs.ch/about/Favre.php
> CSCS, Swiss National Supercomputing Centre  | Tel:  +41 (91) 610.82.40
> Via Cantonale, 6928 Manno, Switzerland      | Fax:  +41 (91) 610.82.82
> 
>


From bryan.cole at teraview.com  Fri Oct  8 05:40:13 2004
From: bryan.cole at teraview.com (Bryan Cole)
Date: Fri, 08 Oct 2004 10:40:13 +0100
Subject: [vtkusers] passing vtkDataArray to python/Numeric arrays
Message-ID: <1097228413.23513.9.camel@bryan.teraviewhq.local>

Is there an efficient way to pass the data from a vtkDataArray object to
a python Numeric array (for easier manipulation)?

I can do the reverse using vtkDataArray::SetVoidArray, but
vtkDataArray::GetVoidArray doesn't return anything useful to python.

Note. I need to do this for general vtkDataArrays, so the
vtkImageExportToArray python class doesn help (as it only handles
vtkImageData).

Bryan




From malcolm at geovision.co.za  Fri Oct  8 07:24:49 2004
From: malcolm at geovision.co.za (Malcolm Drummond)
Date: Fri, 8 Oct 2004 13:24:49 +0200
Subject: [vtkusers] passing vtkDataArray to python/Numeric arrays
References: <1097228413.23513.9.camel@bryan.teraviewhq.local>
Message-ID: <000201c4ad29$c36706f0$adf4fea9@bart>

Hi Bryan

There's an array function: fromstring(string,typecode). I haven't used it
myself but it looks like what you need.

HTH
Malcolm

----- Original Message -----
From: "Bryan Cole" <bryan.cole at teraview.com>
To: "VTK users list" <vtkusers at vtk.org>
Sent: Friday, October 08, 2004 11:40 AM
Subject: [vtkusers] passing vtkDataArray to python/Numeric arrays


> Is there an efficient way to pass the data from a vtkDataArray object to
> a python Numeric array (for easier manipulation)?
>
> I can do the reverse using vtkDataArray::SetVoidArray, but
> vtkDataArray::GetVoidArray doesn't return anything useful to python.
>
> Note. I need to do this for general vtkDataArrays, so the
> vtkImageExportToArray python class doesn help (as it only handles
> vtkImageData).
>
> Bryan
>
>
> _______________________________________________
> This is the private VTK discussion list.
> Please keep messages on-topic. Check the FAQ at:
<http://public.kitware.com/cgi-bin/vtkfaq>
> Follow this link to subscribe/unsubscribe:
> http://www.vtk.org/mailman/listinfo/vtkusers
>



From normand at lina.univ-nantes.fr  Fri Oct  8 08:38:52 2004
From: normand at lina.univ-nantes.fr (Jean-Marie Normand)
Date: Fri, 08 Oct 2004 14:38:52 +0200
Subject: [vtkusers] newbie question : vtkPlanes to represent a cube
Message-ID: <1097239132.11002.36.camel@pago.irin.sciences.univ-nantes.prive>

Hi, I'm new to VTK and I try to represent a cube with vtkPlanes (because
I want to perform Bollean operation on this cube afterwards) and I can't
manage to have this working.

Here is the code I use, after these declarations, I create a sample
function, a contourfilter, a polydatamapper and an actor in order to
render the cube, but the window is always empty.

I wonder if there is a problem with the normals of my cube, which should
be centered in (0,0,0) in 3D, I'm also wondering if I use the right
coordinates system (I thought that X would be oriented on the right of
the screen, Y upwards and Z toward the user). I may be wrong on this
point but I haven't been able to find what the orientation of the axes
look like.

// Creating a cube by using vtkPlanes
vtkFloatArray *pcoords = vtkFloatArray::New();
pcoords->SetNumberOfComponents(3);
pcoords->SetNumberOfTuples(6);
  
// the array of normals
vtkFloatArray *pnormals = vtkFloatArray::New();
pnormals->SetNumberOfComponents(3);
pnormals->SetNumberOfTuples(6);
  
float size = 2.;
float half_size = size / 2.;
float pts[6][3] = { {0.0, 0.0, 0.}, {0., half_size, 0.0}, 
  		    {half_size, half_size, 0.0}, {-half_size, half_size,0.0}, 
		    {0.0, half_size, half_size}, {0.0, half_size, -half_size} };
 
  float nrmls[6][3] = { {0., 1., 0.},  {0., -1., 0.},
  			{1., 0., 0.},  {-1., 0., 0.},
			{0., 0., 1.},  {0., 0., -1.}  }; 
 
  for (int i=0; i<6; i++)
  {
    pcoords->SetTuple(i, pts[i]);
    pnormals->InsertTuple(i, nrmls[i]);
  }

  // Create vtkPoints and assign pcoords as the internal data array.
  vtkPoints* points = vtkPoints::New();
  points->SetData(pcoords);
  
  vtkPlanes *cube = vtkPlanes::New();
  cube->SetPoints( points );
  cube->SetNormals( pnormals );


Any help would be appreciated
Thanks 

Jim




From goodwin.lawlor at ucd.ie  Fri Oct  8 08:50:12 2004
From: goodwin.lawlor at ucd.ie (Goodwin Lawlor)
Date: Fri, 8 Oct 2004 13:50:12 +0100
Subject: [vtkusers] Re: vtkMath::Jacobi in Tcl/Tk
References: <41659A12.7060906@rc.unesp.br>
Message-ID: <ck62e6$pfh$1@sea.gmane.org>

Hi Luca,

vtkMath::Jacobi is not wrapped by the tcl wrappers so is not available...
the wrappers dont wrap methods with arrays as arguments. If you have the vtk
source and want to code some c++ you could write a Jacobi method that takes
a few vtkDataArray as arguments.

Alternatively, you could code a jacobi algorithm in tcl... here's a linear
algebra package in tcl that you may get some ideas from
http://www.hume.com/la/

hth

Goodwin

"Luca Pallozzi Lavorante" <lucapl at rc.unesp.br> wrote in message
news:41659A12.7060906 at rc.unesp.br...
Hi everybody,
I?d like to use the vtkMath?s Jacobi method in a Tcl/Tk script, but I
don?t know how to pass it the proper arguments.
In the documentation I?ve seen that in C++ I?d use the following:

    vtkMath::Jacobi (  float **    /a/, float *    /w/, float **    /v/ )

which I have successfully tested.
|
|But how to do it in Tcl/Tk?

Thanks for any help.

   Luca P. Lavorante
_______________________________________________
This is the private VTK discussion list.
Please keep messages on-topic. Check the FAQ at:
<http://public.kitware.com/cgi-bin/vtkfaq>
Follow this link to subscribe/unsubscribe:
http://www.vtk.org/mailman/listinfo/vtkusers





From lucapl at rc.unesp.br  Fri Oct  8 09:08:42 2004
From: lucapl at rc.unesp.br (Luca Pallozzi Lavorante)
Date: Fri, 08 Oct 2004 10:08:42 -0300
Subject: [vtkusers] Re: vtkMath::Jacobi in Tcl/Tk
In-Reply-To: <ck62e6$pfh$1@sea.gmane.org>
References: <41659A12.7060906@rc.unesp.br> <ck62e6$pfh$1@sea.gmane.org>
Message-ID: <4166915A.8000107@rc.unesp.br>

Thanks for your help, Goodwin.
I?ll investigate the site.

   Luca

Goodwin Lawlor wrote:

>Hi Luca,
>
>vtkMath::Jacobi is not wrapped by the tcl wrappers so is not available...
>the wrappers dont wrap methods with arrays as arguments. If you have the vtk
>source and want to code some c++ you could write a Jacobi method that takes
>a few vtkDataArray as arguments.
>
>Alternatively, you could code a jacobi algorithm in tcl... here's a linear
>algebra package in tcl that you may get some ideas from
>http://www.hume.com/la/
>
>hth
>
>Goodwin
>
>"Luca Pallozzi Lavorante" <lucapl at rc.unesp.br> wrote in message
>news:41659A12.7060906 at rc.unesp.br...
>Hi everybody,
>I?d like to use the vtkMath?s Jacobi method in a Tcl/Tk script, but I
>don?t know how to pass it the proper arguments.
>In the documentation I?ve seen that in C++ I?d use the following:
>
>    vtkMath::Jacobi (  float **    /a/, float *    /w/, float **    /v/ )
>
>which I have successfully tested.
>|
>|But how to do it in Tcl/Tk?
>
>Thanks for any help.
>
>   Luca P. Lavorante
>_______________________________________________
>This is the private VTK discussion list.
>Please keep messages on-topic. Check the FAQ at:
><http://public.kitware.com/cgi-bin/vtkfaq>
>Follow this link to subscribe/unsubscribe:
>http://www.vtk.org/mailman/listinfo/vtkusers
>
>
>
>_______________________________________________
>This is the private VTK discussion list. 
>Please keep messages on-topic. Check the FAQ at: <http://public.kitware.com/cgi-bin/vtkfaq>
>Follow this link to subscribe/unsubscribe:
>http://www.vtk.org/mailman/listinfo/vtkusers
>
>  
>



From BBahr at SARK.COM  Fri Oct  8 09:06:26 2004
From: BBahr at SARK.COM (Bahr, Brian)
Date: Fri, 8 Oct 2004 08:06:26 -0500
Subject: [vtkusers] Canny - TCL to C++ conversion
Message-ID: <C0FED46F83EE1A49ABC73437E642DE09013649@chi03ex01.SARKNET.SARKROOT.CORP>

I am trying to create a Canny filter in C++.  I can successfully run the
Canny.tcl example, but I am having a hard time converting the Tcl code
into a C++ equivalent.
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From goodwin.lawlor at ucd.ie  Fri Oct  8 09:08:08 2004
From: goodwin.lawlor at ucd.ie (Goodwin Lawlor)
Date: Fri, 8 Oct 2004 14:08:08 +0100
Subject: [vtkusers] Re: newbie question : vtkPlanes to represent a cube
References: <1097239132.11002.36.camel@pago.irin.sciences.univ-nantes.prive>
Message-ID: <ck63fq$ske$1@sea.gmane.org>

Hi Jim,

Have you had a look at vtkCubeSource to create your cube for you? If you
want to do some boolean operations then implicit functions are best.
Unfortunately, there's no implicit fuction for a cube but you could try to
use vtkCubeSource with vtkImplicitDataSet.

hth

Goodwin

"Jean-Marie Normand" <normand at lina.univ-nantes.fr> wrote in message
news:1097239132.11002.36.camel at pago.irin.sciences.univ-nantes.prive...
> Hi, I'm new to VTK and I try to represent a cube with vtkPlanes (because
> I want to perform Bollean operation on this cube afterwards) and I can't
> manage to have this working.
>
> Here is the code I use, after these declarations, I create a sample
> function, a contourfilter, a polydatamapper and an actor in order to
> render the cube, but the window is always empty.
>
> I wonder if there is a problem with the normals of my cube, which should
> be centered in (0,0,0) in 3D, I'm also wondering if I use the right
> coordinates system (I thought that X would be oriented on the right of
> the screen, Y upwards and Z toward the user). I may be wrong on this
> point but I haven't been able to find what the orientation of the axes
> look like.
>
> // Creating a cube by using vtkPlanes
> vtkFloatArray *pcoords = vtkFloatArray::New();
> pcoords->SetNumberOfComponents(3);
> pcoords->SetNumberOfTuples(6);
>
> // the array of normals
> vtkFloatArray *pnormals = vtkFloatArray::New();
> pnormals->SetNumberOfComponents(3);
> pnormals->SetNumberOfTuples(6);
>
> float size = 2.;
> float half_size = size / 2.;
> float pts[6][3] = { {0.0, 0.0, 0.}, {0., half_size, 0.0},
>       {half_size, half_size, 0.0}, {-half_size, half_size,0.0},
>     {0.0, half_size, half_size}, {0.0, half_size, -half_size} };
>
>   float nrmls[6][3] = { {0., 1., 0.},  {0., -1., 0.},
>   {1., 0., 0.},  {-1., 0., 0.},
> {0., 0., 1.},  {0., 0., -1.}  };
>
>   for (int i=0; i<6; i++)
>   {
>     pcoords->SetTuple(i, pts[i]);
>     pnormals->InsertTuple(i, nrmls[i]);
>   }
>
>   // Create vtkPoints and assign pcoords as the internal data array.
>   vtkPoints* points = vtkPoints::New();
>   points->SetData(pcoords);
>
>   vtkPlanes *cube = vtkPlanes::New();
>   cube->SetPoints( points );
>   cube->SetNormals( pnormals );
>
>
> Any help would be appreciated
> Thanks
>
> Jim
>
>
> _______________________________________________
> This is the private VTK discussion list.
> Please keep messages on-topic. Check the FAQ at:
<http://public.kitware.com/cgi-bin/vtkfaq>
> Follow this link to subscribe/unsubscribe:
> http://www.vtk.org/mailman/listinfo/vtkusers
>





From lflong at doc.ic.ac.uk  Fri Oct  8 07:18:49 2004
From: lflong at doc.ic.ac.uk (Longfei Cong)
Date: Fri, 8 Oct 2004 12:18:49 +0100
Subject: [vtkusers] use vtkPolyData to define vector
Message-ID: <00bc01c4ad38$b47f1e20$9c05a992@win.doc.ic.ac.uk>

Hi :
    I want to visual a surface with normal vector on it, i got that vtkHedgeHog done this, but how can i denote the vector in vtkPolyData, for  vtkHedgeHog->SetInput  is vtkPolyData.
 
wish for your help!!!!!!!
longfei
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From daniel.sidobre at laas.fr  Fri Oct  8 10:33:54 2004
From: daniel.sidobre at laas.fr (Daniel Sidobre)
Date: Fri, 8 Oct 2004 16:33:54 +0200
Subject: [vtkusers] Canny - TCL to C++ conversion
In-Reply-To: <C0FED46F83EE1A49ABC73437E642DE09013649@chi03ex01.SARKNET.SARKROOT.CORP>
References: <C0FED46F83EE1A49ABC73437E642DE09013649@chi03ex01.SARKNET.SARKROOT.CORP>
Message-ID: <16742.42322.424113.545959@laas.fr>

Vous avez ecrit (dans votre message du 8 10 2004)
 > I am trying to create a Canny filter in C++.  I can successfully run the
 > Canny.tcl example, but I am having a hard time converting the Tcl code
 > into a C++ equivalent.

 Hi,

 So, I suppose you have write some Tcl code to create some Canny
 filter that you run successfully. And you want to translate it in c++.

 As a so general question the response is : it's probably impossible
 as Tcl has many concept that doesn't exist in c++. For example you
 can redefine all functions, you can evaluate expressions in differents
 stack levels, ...

 But, if from the begening of your writing, you have had in mind that
 you want to translate to c++, the job may be pretty easy. For each
 line add some comas and brackets and suppress some dollars.

 Daniel



From BBahr at SARK.COM  Fri Oct  8 10:59:14 2004
From: BBahr at SARK.COM (Bahr, Brian)
Date: Fri, 8 Oct 2004 09:59:14 -0500
Subject: [vtkusers] Canny - TCL to C++ conversion
Message-ID: <C0FED46F83EE1A49ABC73437E642DE0901364A@chi03ex01.SARKNET.SARKROOT.CORP>

More specifically, I am trying to write a Canny filter in C++.  I am
using the Canny.tcl file supplied by VTK at the following address...

http://public.kitware.com/cgi-bin/viewcvs.cgi/*checkout*/Graphics/Testin
g/Tcl/Canny.tcl?root=VTK&content-type=text/plain

It seems that most of the classes and methods used in this TCL file map
directly to C++ VTK classes and methods.  I just can't quite get it
right.  Here is the C++ that I am working with...

		vtkJPEGReader* imageInReader = vtkJPEGReader::New();
		imageInReader->SetFileName("MyJPEG.jpg");
		vtkImageLuminance* il = vtkImageLuminance::New();
		il->SetInput(imageInReader->GetOutput());
		il->Update();

		vtkImageCast* ic = vtkImageCast::New();
		ic->SetOutputScalarTypeToFloat();
		ic->SetInput(il->GetOutput());
		ic->Update();

		//smooth the image
		vtkImageGaussianSmooth* pGaussian =
vtkImageGaussianSmooth::New();
		pGaussian->SetInput(ic->GetOutput());
		pGaussian->SetRadiusFactors(RFx,RFy,RFz);
		pGaussian->SetReleaseDataFlag(1);
		pGaussian->Update();

		//gradient the image
		vtkImageGradient* pGradient = vtkImageGradient::New();
		pGradient->SetInput(pGaussian->GetOutput());
		pGradient->SetDimensionality(2);
		pGradient->SetReleaseDataFlag(1);
		pGradient->Update();

		vtkImageMagnitude* pMagnitude =
vtkImageMagnitude::New();
		pMagnitude->SetInput(pGradient->GetOutput());
		pMagnitude->Update();

		vtkImageNonMaximumSuppression* pNonMax =
vtkImageNonMaximumSuppression::New();
		pNonMax->SetMagnitudeInput(pMagnitude->GetOutput());
		pNonMax->SetVectorInput(pGradient->GetOutput());
		pNonMax->SetDimensionality(2);
		pNonMax->Update();

		vtkImageConstantPad* pPad = vtkImageConstantPad::New();
		pPad->SetInput(pGradient->GetOutput());
		pPad->SetOutputNumberOfScalarComponents(3);
		pPad->SetConstant(0);
		pPad->Update();
		
		vtkImageToStructuredPoints* i2sp1 =
vtkImageToStructuredPoints::New();
		i2sp1->SetInput(pNonMax->GetOutput());
		i2sp1->SetVectorInput(pPad->GetOutput());
		i2sp1->Update();

		//link edgles
		vtkLinkEdgels* pLink = vtkLinkEdgels::New();
		pLink->SetInput((vtkImageData*)i2sp1->GetOutput());
		pLink->SetGradientThreshold(2);
		pLink->Update();

		//threshold links
		vtkThreshold* pThreshold = vtkThreshold::New();
		pThreshold->SetInput((vtkDataSet*)pLink->GetOutput());
		pThreshold->ThresholdByUpper(10);
		pThreshold->AllScalarsOff();
		pThreshold->Update();

		vtkGeometryFilter* pGeomFilter =
vtkGeometryFilter::New();
		pGeomFilter->SetInput((vtkDataSet
*)pThreshold->GetOutput());
		pGeomFilter->Update();

		vtkImageToStructuredPoints* i2sp =
vtkImageToStructuredPoints::New();
		i2sp->SetInput(pMagnitude->GetOutput());
		i2sp->SetVectorInput(pPad->GetOutput());
		i2sp->Update();

		//subpixel them
		vtkSubPixelPositionEdgels* spe =
vtkSubPixelPositionEdgels::New();
		spe->SetInput((vtkPolyData *)pGeomFilter->GetOutput());
		spe->SetGradMaps(i2sp->GetOutput());
		spe->Update();

		vtkStripper* strip = vtkStripper::New();
		strip->SetInput(spe->GetOutput());
		strip->Update();

		vtkPolyDataMapper* dsm = vtkPolyDataMapper::New();
		dsm->SetInput(strip->GetOutput());
		//dsm->SetStartVisibilityOff();
		dsm->Update();

		vtkActor* actor = vtkActor::New();
		actor->SetMapper(dsm);
//[planeActor GetProperty] SetAmbient 1.0
//[planeActor GetProperty] SetDiffuse 0.0

		//render
		vtkRenderer *ren1 = vtkRenderer::New();
		ren1->AddActor(actor);
		vtkRenderWindow *renWin = vtkRenderWindow::New();
		renWin->OffScreenRenderingOn();
		renWin->AddRenderer(ren1);
		renWin->Render();

		//get contents from window into image
		vtkWindowToImageFilter *w2if =
vtkWindowToImageFilter::New();
		w2if->SetInput(renWin); 
		this->pImage = w2if->GetOutput();  //where pImage is
vtkImageData*

-----Original Message-----
From: Daniel Sidobre [mailto:daniel.sidobre at laas.fr] 
Sent: Friday, October 08, 2004 10:34 AM
To: Bahr, Brian
Cc: vtkusers at vtk.org
Subject: [FILTERED] - [vtkusers] Canny - TCL to C++ conversion -
Bayesian Filter detected spam


Vous avez ecrit (dans votre message du 8 10 2004)
 > I am trying to create a Canny filter in C++.  I can successfully run
the
 > Canny.tcl example, but I am having a hard time converting the Tcl
code
 > into a C++ equivalent.

 Hi,

 So, I suppose you have write some Tcl code to create some Canny
 filter that you run successfully. And you want to translate it in c++.

 As a so general question the response is : it's probably impossible
 as Tcl has many concept that doesn't exist in c++. For example you
 can redefine all functions, you can evaluate expressions in differents
 stack levels, ...

 But, if from the begening of your writing, you have had in mind that
 you want to translate to c++, the job may be pretty easy. For each
 line add some comas and brackets and suppress some dollars.

 Daniel



From chent at cs.queensu.ca  Fri Oct  8 11:18:29 2004
From: chent at cs.queensu.ca (Thomas - Kuiran Chen)
Date: Fri, 8 Oct 2004 11:18:29 -0400
Subject: [vtkusers] Please Help: Problem to display 2D image in
	volumeusing vtkActor/vtkPlaneSource
Message-ID: <200410081518.i98FITiF009834@cs.queensu.ca>

Hi Andre,

For that question, unfortunately, I didn't get any reply from the VTK group.  Seems like not too much people are interested in that particular appliation, :-).

So I finally I got my own solution to it after trying numerious methods.  My solution was not using the vtkPlaneSource because the transform for it never got right.  Instead, I converted the 2D image from vtkImageData to the vtkPolyData and created another vtkActor specific for that image, then displayed it with the proper transform.  

It worked fine for me.  I think vtkPlaneSource  is supposed (or designed) to be a ideal and elegant way to handle this, but somehow it has bugs.

Are you also working on displaying a 2D ultrasound slice inside a ultrasound volume?

Hope it helps and Good Luck!

Thomas Kuiran Chen

The Image Analysis Laboratory
School of Computing
Queen's University at Kingston
Ontario, Canada K7M 1B6
Email: chent at cs.queensu.ca
Tel: (O) 1(613)533-2797


---------------------- Original Message ------------------------
From: Andr?_Huisman <andre at syand.nl>
To: chent at cs.queensu.ca <chent at cs.queensu.ca>
Sent: 2004-10-07 04:52:27
Subject: re: [vtkusers] Please Help: Problem to display 2D image in volumeusing vtkActor/vtkPlaneSource

Hi Thomas,

On the internet I found a post of you with the above subject.  It is 
exactly the same problem I am facing at the moment. Did you receive any 
usefull comments on your post and did that help you to do the 
visualisation? If so, please could you send me those solutions?

Thank you in advance,

Andr?Huisman
Department of pathology, University Medical Center Utrecht
The Netherlands

--------------------------------------------------------------------
			


From nsv80 at rediffmail.com  Fri Oct  8 11:32:01 2004
From: nsv80 at rediffmail.com (neelam sanjeev verma)
Date: 8 Oct 2004 15:32:01 -0000
Subject: [vtkusers] problem To diplay structured grid in 2D
Message-ID: <20041008153201.28771.qmail@webmail46.rediffmail.com>

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 ?hi all 
   may any one tell me how i can draw structured grid data
   (scalar values )as 2D  image so that i can zoom it but not rotate it 
   if any one have this solution then plz tell me .
   i am very tahnkfull to u.
bye Regards Neelam Sanjeev Verma

   

From mathieu.malaterre at kitware.com  Fri Oct  8 12:56:21 2004
From: mathieu.malaterre at kitware.com (Mathieu Malaterre)
Date: Fri, 08 Oct 2004 12:56:21 -0400
Subject: [vtkusers] timings for vtkImageReader2
In-Reply-To: <4165DA61.4080007@lsuhsc.edu>
References: <003101c4acaa$e851cfb0$0300a8c0@kerekeslaptop>
	<4165DA61.4080007@lsuhsc.edu>
Message-ID: <4166C6B5.3070504@kitware.com>

Budd,

	512x512x512x2 = 268,435,456 so I don't see any problem with a 3s 
reading time. I admit a have 1gig of memory so there is very few chance 
I start swapping. Also to be honest the first time I run the c++ code it 
take 8s, the second time it takes 3s

$ time ./bench 
                                                 ./bench  1.05s user 
1.97s system 99% cpu 3.021 total


	My guess is:
- you are swapping a lot (if you didn't ran defrag in a while swapping 
would be very slow).
- Close any other apps you are using to avoid having to swap.
- Use linux :P

Mathieu
Ps: sys info:

$ cat /proc/cpuinfo 

processor       : 0
vendor_id       : GenuineIntel
cpu family      : 15
model           : 2
model name      : Intel(R) Pentium(R) 4 CPU 2.80GHz
stepping        : 9
cpu MHz         : 2793.067
cache size      : 512 KB
physical id     : 0
siblings        : 2
fdiv_bug        : no
hlt_bug         : no
f00f_bug        : no
coma_bug        : no
fpu             : yes
fpu_exception   : yes
cpuid level     : 2
wp              : yes
flags           : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge 
mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe cid
runqueue        : 0

bogomips        : 5570.56

processor       : 1
vendor_id       : GenuineIntel
cpu family      : 15
model           : 2
model name      : Intel(R) Pentium(R) 4 CPU 2.80GHz
stepping        : 9
cpu MHz         : 2793.067
cache size      : 512 KB
physical id     : 0
siblings        : 2
fdiv_bug        : no
hlt_bug         : no
f00f_bug        : no
coma_bug        : no
fpu             : yes
fpu_exception   : yes
cpuid level     : 2
wp              : yes
flags           : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge 
mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe cid
runqueue        : 0

bogomips        : 5583.66


/sbin/hdparm -t /dev/sda2 


/dev/sda2:
  Timing buffered disk reads:  160 MB in  3.00 seconds =  53.33 MB/sec



Budd Hirons wrote:
> 3 seconds! you have to let me in on your secret!
> 
> UltraATA maximum transfer in the DMA mode 5 is only 100MB/s, so I guess 
> it is possible, but unlikely, to read this in 3 seconds.  I ran this 
> exercise on two machines, compiled from C++.
> 
> machine 1 (p4,ultraATA drive on board,DMA,DDR ram) - 18s read
> machine 2 (dual Xeon,SCSI on PCI adapter,no DMA,pc133 ram) - 66s read
> 
> We regularly deal with volumes that exceed this one in size, and range 
> to 800 megs on disk.  Load times to get very large chunks of data into 
> can ram vary wildly, but it should not be expected to happen 
> instantaneously.  45 seconds for larger datasets would not be off the 
> mark in release on random equipment and with other processes likely 
> running.
> 
> Cheers,
> Budd.
> 
> 
> 
> Kate Kerekes wrote:
> 
>> Hello again,
>>
>> I apologize for the length of this message.  I am still having 
>> problems with
>> the time it takes vtkImageReader2 to read 268 MB of data (a series of 512
>> files with 512x512 shorts each.)  I ran the following test program (from
>> Mathieu Malaterre  translated to tcl by me) to see how long a read takes:
>>
>> #!/bin/sh
>> load vtkCommonTCL.dll
>> load vtkFilteringTCL.dll
>> load vtkGraphicsTCL.dll
>> load vtkIOTCL.dll
>> load vtkImagingTCL.dll
>> load vtkRenderingTCL.dll
>> load vtkHybridTCL.dll
>> source Interactor.tcl
>> source bindings-rw.tcl
>> source bindings-iw.tcl
>> source bindings.tcl
>> source setget.tcl
>>  
>> console show
>>
>> set createImage yes
>>
>> if {$createImage=="yes"} {
>> vtkImageNoiseSource noise
>>    noise SetWholeExtent 0 511 0 511 0 511
>>    noise SetMinimum 0.0
>>    noise SetMaximum 1.0
>>    [noise GetOutput] ReleaseDataFlagOn
>>    puts "about to update vtkImageNoiseSource"
>>    noise Update
>>    puts "finished updating vtkImageNoiseSource"
>>  
>>    vtkImageCast cast
>>    cast SetInput [noise GetOutput]
>>    cast SetOutputScalarTypeToUnsignedShort  
>>    vtkImageWriter writer
>>    writer SetInput [cast GetOutput]
>>    writer SetFileDimensionality 3
>>    writer SetFileName "bench.img"
>>    puts "about to update writer"
>>    writer Write
>>    puts "finished updating writer"
>> }
>>  
>>    vtkImageReader2 reader
>>    [reader GetOutput] ReleaseDataFlagOn
>>    reader SetDataExtent 0 511 0 511 0 511
>>    reader SetDataScalarTypeToUnsignedShort
>>    reader SetDataByteOrderToLittleEndian
>>    reader SetFileName "bench.img"
>>
>>    puts "about to update reader"
>>    set time1 [clock clicks -milliseconds]
>>    reader Update
>>    set time2 [clock clicks -milliseconds]
>>    puts "finished updating reader"
>>    puts "reader update took [expr $time2-$time1] milliseconds"
>>
>> The read takes 15 seconds on my machine (Windows XP with service pack 
>> 2, AMD
>> athlon 64 chipset 3000+, with 512 megs of memory).  I am reading data 
>> from
>> the IDE harddrive.  Mathieu's timing was 3 seconds.  This of course is 
>> not
>> the newest machine out there, but it is not that old either.
>>
>> Then when I try to read my series of slices, my machine takes 45 seconds.
>> The only difference in reading the slice files and the bench.img 
>> created by
>> ImageNoiseSource is that the bench.img is all three dimensions in one 
>> file
>> (rather than a series of slices), and the bench.img file uses unsigned
>> shorts rather than shorts (but both are 2 bytes, right?).
>>
>> So here are my thoughts as to why the problem could be occurring--any
>> feedback would be appreciated:
>> 1.  my computer is too slow--I don't think this is it
>> 2.  the bench.img file only reads faster because it has just been 
>> written to
>> memory and is probably still in the cache and therefore takes less 
>> time to
>> access
>> 3.  the fact that my slices are in series and 512 different files have 
>> to be
>> read is the slow down
>> 4.  the code running in tcl is slower than code running in c (I can 
>> fix this
>> by calling a c function from tcl--but only if I think this is really the
>> problem)
>> 5.  there is some other problem that I am unaware of--this is my worst 
>> fear
>> :(
>>
>> Please help!  All of the other feedback I have gotten before says that 
>> the
>> read should take no more than a few seconds.  45 seconds is way too 
>> long for
>> our customer and this is not even the largest filesize that will be used.
>>
>> Thanks,
>> Kate Kerekes
>>
>>
>>
>> _______________________________________________
>> This is the private VTK discussion list. Please keep messages 
>> on-topic. Check the FAQ at: <http://public.kitware.com/cgi-bin/vtkfaq>
>> Follow this link to subscribe/unsubscribe:
>> http://www.vtk.org/mailman/listinfo/vtkusers
>>
> _______________________________________________
> This is the private VTK discussion list. Please keep messages on-topic. 
> Check the FAQ at: <http://public.kitware.com/cgi-bin/vtkfaq>
> Follow this link to subscribe/unsubscribe:
> http://www.vtk.org/mailman/listinfo/vtkusers
> 





From seanm at nmr.mgh.harvard.edu  Fri Oct  8 13:15:01 2004
From: seanm at nmr.mgh.harvard.edu (Sean McInerney)
Date: Fri, 08 Oct 2004 13:15:01 -0400
Subject: [vtkusers] timings for vtkImageReader2
In-Reply-To: <4166C6B5.3070504@kitware.com>
References: <003101c4acaa$e851cfb0$0300a8c0@kerekeslaptop>	<4165DA61.4080007@lsuhsc.edu>
	<4166C6B5.3070504@kitware.com>
Message-ID: <4166CB15.5060608@nmr.mgh.harvard.edu>

Hi Kate,

   Again I'll second Mathieu. You have far too little memory to be 
handling that much data. In memory your data alone occupies 268Mb before 
you even do anything to it. The memory occupied by your application and 
the VTK libraries that it links in are also significant ... so your 
application and data may be occupying around 350Mb in memory! ... and 
that is a conservative estimate.

   Since Windows XP is not known for being particularly lightweight, you 
are certainly causing a whole lot of its processes to be written out to 
swap. This massive slowdown is even compounded if the swap space is on 
the same disk from which you are reading.

   Using Linux will certainly improve your quality of life, but I think 
investing in, at least, another 512Mb of RAM is compulsory. I used to 
use 1Gb of RAM as standard for any machine expected to do any serious 
imaging work. With the advent of higher field scanners with increased 
resolutions and considering the relatively low price of RAM, I would 
suggest using 2Gb if possible. That will give you the room you need to 
support pipeline operations on your data once it is read in.

-Sean

Mathieu Malaterre wrote:
> Budd,
> 
>     512x512x512x2 = 268,435,456 so I don't see any problem with a 3s 
> reading time. I admit a have 1gig of memory so there is very few chance 
> I start swapping. Also to be honest the first time I run the c++ code it 
> take 8s, the second time it takes 3s
> 
> $ time ./bench                                                 ./bench  
> 1.05s user 1.97s system 99% cpu 3.021 total
> 
> 
>     My guess is:
> - you are swapping a lot (if you didn't ran defrag in a while swapping 
> would be very slow).
> - Close any other apps you are using to avoid having to swap.
> - Use linux :P
> 
> Mathieu
> Ps: sys info:
> 
> $ cat /proc/cpuinfo
> processor       : 0
> vendor_id       : GenuineIntel
> cpu family      : 15
> model           : 2
> model name      : Intel(R) Pentium(R) 4 CPU 2.80GHz
> stepping        : 9
> cpu MHz         : 2793.067
> cache size      : 512 KB
> physical id     : 0
> siblings        : 2
> fdiv_bug        : no
> hlt_bug         : no
> f00f_bug        : no
> coma_bug        : no
> fpu             : yes
> fpu_exception   : yes
> cpuid level     : 2
> wp              : yes
> flags           : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge 
> mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe cid
> runqueue        : 0
> 
> bogomips        : 5570.56
> 
> processor       : 1
> vendor_id       : GenuineIntel
> cpu family      : 15
> model           : 2
> model name      : Intel(R) Pentium(R) 4 CPU 2.80GHz
> stepping        : 9
> cpu MHz         : 2793.067
> cache size      : 512 KB
> physical id     : 0
> siblings        : 2
> fdiv_bug        : no
> hlt_bug         : no
> f00f_bug        : no
> coma_bug        : no
> fpu             : yes
> fpu_exception   : yes
> cpuid level     : 2
> wp              : yes
> flags           : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge 
> mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe cid
> runqueue        : 0
> 
> bogomips        : 5583.66
> 
> 
> /sbin/hdparm -t /dev/sda2
> 
> /dev/sda2:
>  Timing buffered disk reads:  160 MB in  3.00 seconds =  53.33 MB/sec
> 
> 
> 
> Budd Hirons wrote:
> 
>> 3 seconds! you have to let me in on your secret!
>>
>> UltraATA maximum transfer in the DMA mode 5 is only 100MB/s, so I 
>> guess it is possible, but unlikely, to read this in 3 seconds.  I ran 
>> this exercise on two machines, compiled from C++.
>>
>> machine 1 (p4,ultraATA drive on board,DMA,DDR ram) - 18s read
>> machine 2 (dual Xeon,SCSI on PCI adapter,no DMA,pc133 ram) - 66s read
>>
>> We regularly deal with volumes that exceed this one in size, and range 
>> to 800 megs on disk.  Load times to get very large chunks of data into 
>> can ram vary wildly, but it should not be expected to happen 
>> instantaneously.  45 seconds for larger datasets would not be off the 
>> mark in release on random equipment and with other processes likely 
>> running.
>>
>> Cheers,
>> Budd.
>>
>>
>>
>> Kate Kerekes wrote:
>>
>>> Hello again,
>>>
>>> I apologize for the length of this message.  I am still having 
>>> problems with
>>> the time it takes vtkImageReader2 to read 268 MB of data (a series of 
>>> 512
>>> files with 512x512 shorts each.)  I ran the following test program (from
>>> Mathieu Malaterre  translated to tcl by me) to see how long a read 
>>> takes:
>>>
>>> #!/bin/sh
>>> load vtkCommonTCL.dll
>>> load vtkFilteringTCL.dll
>>> load vtkGraphicsTCL.dll
>>> load vtkIOTCL.dll
>>> load vtkImagingTCL.dll
>>> load vtkRenderingTCL.dll
>>> load vtkHybridTCL.dll
>>> source Interactor.tcl
>>> source bindings-rw.tcl
>>> source bindings-iw.tcl
>>> source bindings.tcl
>>> source setget.tcl
>>>  
>>> console show
>>>
>>> set createImage yes
>>>
>>> if {$createImage=="yes"} {
>>> vtkImageNoiseSource noise
>>>    noise SetWholeExtent 0 511 0 511 0 511
>>>    noise SetMinimum 0.0
>>>    noise SetMaximum 1.0
>>>    [noise GetOutput] ReleaseDataFlagOn
>>>    puts "about to update vtkImageNoiseSource"
>>>    noise Update
>>>    puts "finished updating vtkImageNoiseSource"
>>>  
>>>    vtkImageCast cast
>>>    cast SetInput [noise GetOutput]
>>>    cast SetOutputScalarTypeToUnsignedShort     vtkImageWriter writer
>>>    writer SetInput [cast GetOutput]
>>>    writer SetFileDimensionality 3
>>>    writer SetFileName "bench.img"
>>>    puts "about to update writer"
>>>    writer Write
>>>    puts "finished updating writer"
>>> }
>>>  
>>>    vtkImageReader2 reader
>>>    [reader GetOutput] ReleaseDataFlagOn
>>>    reader SetDataExtent 0 511 0 511 0 511
>>>    reader SetDataScalarTypeToUnsignedShort
>>>    reader SetDataByteOrderToLittleEndian
>>>    reader SetFileName "bench.img"
>>>
>>>    puts "about to update reader"
>>>    set time1 [clock clicks -milliseconds]
>>>    reader Update
>>>    set time2 [clock clicks -milliseconds]
>>>    puts "finished updating reader"
>>>    puts "reader update took [expr $time2-$time1] milliseconds"
>>>
>>> The read takes 15 seconds on my machine (Windows XP with service pack 
>>> 2, AMD
>>> athlon 64 chipset 3000+, with 512 megs of memory).  I am reading data 
>>> from
>>> the IDE harddrive.  Mathieu's timing was 3 seconds.  This of course 
>>> is not
>>> the newest machine out there, but it is not that old either.
>>>
>>> Then when I try to read my series of slices, my machine takes 45 
>>> seconds.
>>> The only difference in reading the slice files and the bench.img 
>>> created by
>>> ImageNoiseSource is that the bench.img is all three dimensions in one 
>>> file
>>> (rather than a series of slices), and the bench.img file uses unsigned
>>> shorts rather than shorts (but both are 2 bytes, right?).
>>>
>>> So here are my thoughts as to why the problem could be occurring--any
>>> feedback would be appreciated:
>>> 1.  my computer is too slow--I don't think this is it
>>> 2.  the bench.img file only reads faster because it has just been 
>>> written to
>>> memory and is probably still in the cache and therefore takes less 
>>> time to
>>> access
>>> 3.  the fact that my slices are in series and 512 different files 
>>> have to be
>>> read is the slow down
>>> 4.  the code running in tcl is slower than code running in c (I can 
>>> fix this
>>> by calling a c function from tcl--but only if I think this is really the
>>> problem)
>>> 5.  there is some other problem that I am unaware of--this is my 
>>> worst fear
>>> :(
>>>
>>> Please help!  All of the other feedback I have gotten before says 
>>> that the
>>> read should take no more than a few seconds.  45 seconds is way too 
>>> long for
>>> our customer and this is not even the largest filesize that will be 
>>> used.
>>>
>>> Thanks,
>>> Kate Kerekes
>>>
>>>
>>>
>>> _______________________________________________
>>> This is the private VTK discussion list. Please keep messages 
>>> on-topic. Check the FAQ at: <http://public.kitware.com/cgi-bin/vtkfaq>
>>> Follow this link to subscribe/unsubscribe:
>>> http://www.vtk.org/mailman/listinfo/vtkusers
>>>
>> _______________________________________________
>> This is the private VTK discussion list. Please keep messages 
>> on-topic. Check the FAQ at: <http://public.kitware.com/cgi-bin/vtkfaq>
>> Follow this link to subscribe/unsubscribe:
>> http://www.vtk.org/mailman/listinfo/vtkusers
>>
> 
> 
> 
> _______________________________________________
> This is the private VTK discussion list. Please keep messages on-topic. 
> Check the FAQ at: <http://public.kitware.com/cgi-bin/vtkfaq>
> Follow this link to subscribe/unsubscribe:
> http://www.vtk.org/mailman/listinfo/vtkusers
> 


From seanm at nmr.mgh.harvard.edu  Fri Oct  8 13:22:42 2004
From: seanm at nmr.mgh.harvard.edu (Sean McInerney)
Date: Fri, 08 Oct 2004 13:22:42 -0400
Subject: [vtkusers] Canny - TCL to C++ conversion
In-Reply-To: <C0FED46F83EE1A49ABC73437E642DE0901364A@chi03ex01.SARKNET.SARKROOT.CORP>
References: <C0FED46F83EE1A49ABC73437E642DE0901364A@chi03ex01.SARKNET.SARKROOT.CORP>
Message-ID: <4166CCE2.3080105@nmr.mgh.harvard.edu>

Hi Brian,

   I wrote an example application for vtkFLTK 
<http://vtkfltk.sourceforge.net/Examples/Canny.html> based on Canny.tcl. 
Even if you are not interested in using vtkFLTK, the source code should 
be of help. You can browse the source from the CVS repository by 
clicking 'Canny' above the screenshot.

-Sean

Bahr, Brian wrote:
> More specifically, I am trying to write a Canny filter in C++.  I am
> using the Canny.tcl file supplied by VTK at the following address...
> 
> http://public.kitware.com/cgi-bin/viewcvs.cgi/*checkout*/Graphics/Testin
> g/Tcl/Canny.tcl?root=VTK&content-type=text/plain
> 
> It seems that most of the classes and methods used in this TCL file map
> directly to C++ VTK classes and methods.  I just can't quite get it
> right.  Here is the C++ that I am working with...
> 
> 		vtkJPEGReader* imageInReader = vtkJPEGReader::New();
> 		imageInReader->SetFileName("MyJPEG.jpg");
> 		vtkImageLuminance* il = vtkImageLuminance::New();
> 		il->SetInput(imageInReader->GetOutput());
> 		il->Update();
> 
> 		vtkImageCast* ic = vtkImageCast::New();
> 		ic->SetOutputScalarTypeToFloat();
> 		ic->SetInput(il->GetOutput());
> 		ic->Update();
> 
> 		//smooth the image
> 		vtkImageGaussianSmooth* pGaussian =
> vtkImageGaussianSmooth::New();
> 		pGaussian->SetInput(ic->GetOutput());
> 		pGaussian->SetRadiusFactors(RFx,RFy,RFz);
> 		pGaussian->SetReleaseDataFlag(1);
> 		pGaussian->Update();
> 
> 		//gradient the image
> 		vtkImageGradient* pGradient = vtkImageGradient::New();
> 		pGradient->SetInput(pGaussian->GetOutput());
> 		pGradient->SetDimensionality(2);
> 		pGradient->SetReleaseDataFlag(1);
> 		pGradient->Update();
> 
> 		vtkImageMagnitude* pMagnitude =
> vtkImageMagnitude::New();
> 		pMagnitude->SetInput(pGradient->GetOutput());
> 		pMagnitude->Update();
> 
> 		vtkImageNonMaximumSuppression* pNonMax =
> vtkImageNonMaximumSuppression::New();
> 		pNonMax->SetMagnitudeInput(pMagnitude->GetOutput());
> 		pNonMax->SetVectorInput(pGradient->GetOutput());
> 		pNonMax->SetDimensionality(2);
> 		pNonMax->Update();
> 
> 		vtkImageConstantPad* pPad = vtkImageConstantPad::New();
> 		pPad->SetInput(pGradient->GetOutput());
> 		pPad->SetOutputNumberOfScalarComponents(3);
> 		pPad->SetConstant(0);
> 		pPad->Update();
> 		
> 		vtkImageToStructuredPoints* i2sp1 =
> vtkImageToStructuredPoints::New();
> 		i2sp1->SetInput(pNonMax->GetOutput());
> 		i2sp1->SetVectorInput(pPad->GetOutput());
> 		i2sp1->Update();
> 
> 		//link edgles
> 		vtkLinkEdgels* pLink = vtkLinkEdgels::New();
> 		pLink->SetInput((vtkImageData*)i2sp1->GetOutput());
> 		pLink->SetGradientThreshold(2);
> 		pLink->Update();
> 
> 		//threshold links
> 		vtkThreshold* pThreshold = vtkThreshold::New();
> 		pThreshold->SetInput((vtkDataSet*)pLink->GetOutput());
> 		pThreshold->ThresholdByUpper(10);
> 		pThreshold->AllScalarsOff();
> 		pThreshold->Update();
> 
> 		vtkGeometryFilter* pGeomFilter =
> vtkGeometryFilter::New();
> 		pGeomFilter->SetInput((vtkDataSet
> *)pThreshold->GetOutput());
> 		pGeomFilter->Update();
> 
> 		vtkImageToStructuredPoints* i2sp =
> vtkImageToStructuredPoints::New();
> 		i2sp->SetInput(pMagnitude->GetOutput());
> 		i2sp->SetVectorInput(pPad->GetOutput());
> 		i2sp->Update();
> 
> 		//subpixel them
> 		vtkSubPixelPositionEdgels* spe =
> vtkSubPixelPositionEdgels::New();
> 		spe->SetInput((vtkPolyData *)pGeomFilter->GetOutput());
> 		spe->SetGradMaps(i2sp->GetOutput());
> 		spe->Update();
> 
> 		vtkStripper* strip = vtkStripper::New();
> 		strip->SetInput(spe->GetOutput());
> 		strip->Update();
> 
> 		vtkPolyDataMapper* dsm = vtkPolyDataMapper::New();
> 		dsm->SetInput(strip->GetOutput());
> 		//dsm->SetStartVisibilityOff();
> 		dsm->Update();
> 
> 		vtkActor* actor = vtkActor::New();
> 		actor->SetMapper(dsm);
> //[planeActor GetProperty] SetAmbient 1.0
> //[planeActor GetProperty] SetDiffuse 0.0
> 
> 		//render
> 		vtkRenderer *ren1 = vtkRenderer::New();
> 		ren1->AddActor(actor);
> 		vtkRenderWindow *renWin = vtkRenderWindow::New();
> 		renWin->OffScreenRenderingOn();
> 		renWin->AddRenderer(ren1);
> 		renWin->Render();
> 
> 		//get contents from window into image
> 		vtkWindowToImageFilter *w2if =
> vtkWindowToImageFilter::New();
> 		w2if->SetInput(renWin); 
> 		this->pImage = w2if->GetOutput();  //where pImage is
> vtkImageData*
> 
> -----Original Message-----
> From: Daniel Sidobre [mailto:daniel.sidobre at laas.fr] 
> Sent: Friday, October 08, 2004 10:34 AM
> To: Bahr, Brian
> Cc: vtkusers at vtk.org
> Subject: [FILTERED] - [vtkusers] Canny - TCL to C++ conversion -
> Bayesian Filter detected spam
> 
> 
> Vous avez ecrit (dans votre message du 8 10 2004)
>  > I am trying to create a Canny filter in C++.  I can successfully run
> the
>  > Canny.tcl example, but I am having a hard time converting the Tcl
> code
>  > into a C++ equivalent.
> 
>  Hi,
> 
>  So, I suppose you have write some Tcl code to create some Canny
>  filter that you run successfully. And you want to translate it in c++.
> 
>  As a so general question the response is : it's probably impossible
>  as Tcl has many concept that doesn't exist in c++. For example you
>  can redefine all functions, you can evaluate expressions in differents
>  stack levels, ...
> 
>  But, if from the begening of your writing, you have had in mind that
>  you want to translate to c++, the job may be pretty easy. For each
>  line add some comas and brackets and suppress some dollars.
> 
>  Daniel
> 
> _______________________________________________
> This is the private VTK discussion list. 
> Please keep messages on-topic. Check the FAQ at: <http://public.kitware.com/cgi-bin/vtkfaq>
> Follow this link to subscribe/unsubscribe:
> http://www.vtk.org/mailman/listinfo/vtkusers
> 


From kerekes at fastmail.fm  Fri Oct  8 17:28:32 2004
From: kerekes at fastmail.fm (Kate Kerekes)
Date: Fri, 8 Oct 2004 17:28:32 -0400
Subject: [vtkusers] timings for vtkImageReader2
In-Reply-To: <4166CB15.5060608@nmr.mgh.harvard.edu>
Message-ID: <001b01c4ad7d$c322c6d0$0300a8c0@kerekeslaptop>

Thank you to all for the comments.  

1.  I am developing this app for windows because the final user will be
using windows--although I much prefer linux :)

2.  I understand that I don't have a lot of memory to run such a large
dataset through, but as I said in an earlier message I have read the same
dataset with AMIRA, and it is significantly faster (sorry cannot remember
exact time, but if you look back through the list you can find it)  So why
is AMIRA faster?  I suspect that AMIRA takes advantage of memory mapping in
windows--although it is hard to tell because it is a commercial app and does
not provide source code.  Is there any way to do this with vtk or a vtk
class that already does this?

kate

-----Original Message-----
From: Sean McInerney [mailto:seanm at nmr.mgh.harvard.edu] 
Sent: Friday, October 08, 2004 1:15 PM
To: Mathieu Malaterre
Cc: Budd Hirons; vtk-users; kerekes at fastmail.fm
Subject: Re: [vtkusers] timings for vtkImageReader2

Hi Kate,

   Again I'll second Mathieu. You have far too little memory to be 
handling that much data. In memory your data alone occupies 268Mb before 
you even do anything to it. The memory occupied by your application and 
the VTK libraries that it links in are also significant ... so your 
application and data may be occupying around 350Mb in memory! ... and 
that is a conservative estimate.

   Since Windows XP is not known for being particularly lightweight, you 
are certainly causing a whole lot of its processes to be written out to 
swap. This massive slowdown is even compounded if the swap space is on 
the same disk from which you are reading.

   Using Linux will certainly improve your quality of life, but I think 
investing in, at least, another 512Mb of RAM is compulsory. I used to 
use 1Gb of RAM as standard for any machine expected to do any serious 
imaging work. With the advent of higher field scanners with increased 
resolutions and considering the relatively low price of RAM, I would 
suggest using 2Gb if possible. That will give you the room you need to 
support pipeline operations on your data once it is read in.

-Sean

Mathieu Malaterre wrote:
> Budd,
> 
>     512x512x512x2 = 268,435,456 so I don't see any problem with a 3s 
> reading time. I admit a have 1gig of memory so there is very few chance 
> I start swapping. Also to be honest the first time I run the c++ code it 
> take 8s, the second time it takes 3s
> 
> $ time ./bench                                                 ./bench  
> 1.05s user 1.97s system 99% cpu 3.021 total
> 
> 
>     My guess is:
> - you are swapping a lot (if you didn't ran defrag in a while swapping 
> would be very slow).
> - Close any other apps you are using to avoid having to swap.
> - Use linux :P
> 
> Mathieu
> Ps: sys info:
> 
> $ cat /proc/cpuinfo
> processor       : 0
> vendor_id       : GenuineIntel
> cpu family      : 15
> model           : 2
> model name      : Intel(R) Pentium(R) 4 CPU 2.80GHz
> stepping        : 9
> cpu MHz         : 2793.067
> cache size      : 512 KB
> physical id     : 0
> siblings        : 2
> fdiv_bug        : no
> hlt_bug         : no
> f00f_bug        : no
> coma_bug        : no
> fpu             : yes
> fpu_exception   : yes
> cpuid level     : 2
> wp              : yes
> flags           : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge 
> mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe cid
> runqueue        : 0
> 
> bogomips        : 5570.56
> 
> processor       : 1
> vendor_id       : GenuineIntel
> cpu family      : 15
> model           : 2
> model name      : Intel(R) Pentium(R) 4 CPU 2.80GHz
> stepping        : 9
> cpu MHz         : 2793.067
> cache size      : 512 KB
> physical id     : 0
> siblings        : 2
> fdiv_bug        : no
> hlt_bug         : no
> f00f_bug        : no
> coma_bug        : no
> fpu             : yes
> fpu_exception   : yes
> cpuid level     : 2
> wp              : yes
> flags           : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge 
> mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe cid
> runqueue        : 0
> 
> bogomips        : 5583.66
> 
> 
> /sbin/hdparm -t /dev/sda2
> 
> /dev/sda2:
>  Timing buffered disk reads:  160 MB in  3.00 seconds =  53.33 MB/sec
> 
> 
> 
> Budd Hirons wrote:
> 
>> 3 seconds! you have to let me in on your secret!
>>
>> UltraATA maximum transfer in the DMA mode 5 is only 100MB/s, so I 
>> guess it is possible, but unlikely, to read this in 3 seconds.  I ran 
>> this exercise on two machines, compiled from C++.
>>
>> machine 1 (p4,ultraATA drive on board,DMA,DDR ram) - 18s read
>> machine 2 (dual Xeon,SCSI on PCI adapter,no DMA,pc133 ram) - 66s read
>>
>> We regularly deal with volumes that exceed this one in size, and range 
>> to 800 megs on disk.  Load times to get very large chunks of data into 
>> can ram vary wildly, but it should not be expected to happen 
>> instantaneously.  45 seconds for larger datasets would not be off the 
>> mark in release on random equipment and with other processes likely 
>> running.
>>
>> Cheers,
>> Budd.
>>
>>
>>
>> Kate Kerekes wrote:
>>
>>> Hello again,
>>>
>>> I apologize for the length of this message.  I am still having 
>>> problems with
>>> the time it takes vtkImageReader2 to read 268 MB of data (a series of 
>>> 512
>>> files with 512x512 shorts each.)  I ran the following test program (from
>>> Mathieu Malaterre  translated to tcl by me) to see how long a read 
>>> takes:
>>>
>>> #!/bin/sh
>>> load vtkCommonTCL.dll
>>> load vtkFilteringTCL.dll
>>> load vtkGraphicsTCL.dll
>>> load vtkIOTCL.dll
>>> load vtkImagingTCL.dll
>>> load vtkRenderingTCL.dll
>>> load vtkHybridTCL.dll
>>> source Interactor.tcl
>>> source bindings-rw.tcl
>>> source bindings-iw.tcl
>>> source bindings.tcl
>>> source setget.tcl
>>>  
>>> console show
>>>
>>> set createImage yes
>>>
>>> if {$createImage=="yes"} {
>>> vtkImageNoiseSource noise
>>>    noise SetWholeExtent 0 511 0 511 0 511
>>>    noise SetMinimum 0.0
>>>    noise SetMaximum 1.0
>>>    [noise GetOutput] ReleaseDataFlagOn
>>>    puts "about to update vtkImageNoiseSource"
>>>    noise Update
>>>    puts "finished updating vtkImageNoiseSource"
>>>  
>>>    vtkImageCast cast
>>>    cast SetInput [noise GetOutput]
>>>    cast SetOutputScalarTypeToUnsignedShort     vtkImageWriter writer
>>>    writer SetInput [cast GetOutput]
>>>    writer SetFileDimensionality 3
>>>    writer SetFileName "bench.img"
>>>    puts "about to update writer"
>>>    writer Write
>>>    puts "finished updating writer"
>>> }
>>>  
>>>    vtkImageReader2 reader
>>>    [reader GetOutput] ReleaseDataFlagOn
>>>    reader SetDataExtent 0 511 0 511 0 511
>>>    reader SetDataScalarTypeToUnsignedShort
>>>    reader SetDataByteOrderToLittleEndian
>>>    reader SetFileName "bench.img"
>>>
>>>    puts "about to update reader"
>>>    set time1 [clock clicks -milliseconds]
>>>    reader Update
>>>    set time2 [clock clicks -milliseconds]
>>>    puts "finished updating reader"
>>>    puts "reader update took [expr $time2-$time1] milliseconds"
>>>
>>> The read takes 15 seconds on my machine (Windows XP with service pack 
>>> 2, AMD
>>> athlon 64 chipset 3000+, with 512 megs of memory).  I am reading data 
>>> from
>>> the IDE harddrive.  Mathieu's timing was 3 seconds.  This of course 
>>> is not
>>> the newest machine out there, but it is not that old either.
>>>
>>> Then when I try to read my series of slices, my machine takes 45 
>>> seconds.
>>> The only difference in reading the slice files and the bench.img 
>>> created by
>>> ImageNoiseSource is that the bench.img is all three dimensions in one 
>>> file
>>> (rather than a series of slices), and the bench.img file uses unsigned
>>> shorts rather than shorts (but both are 2 bytes, right?).
>>>
>>> So here are my thoughts as to why the problem could be occurring--any
>>> feedback would be appreciated:
>>> 1.  my computer is too slow--I don't think this is it
>>> 2.  the bench.img file only reads faster because it has just been 
>>> written to
>>> memory and is probably still in the cache and therefore takes less 
>>> time to
>>> access
>>> 3.  the fact that my slices are in series and 512 different files 
>>> have to be
>>> read is the slow down
>>> 4.  the code running in tcl is slower than code running in c (I can 
>>> fix this
>>> by calling a c function from tcl--but only if I think this is really the
>>> problem)
>>> 5.  there is some other problem that I am unaware of--this is my 
>>> worst fear
>>> :(
>>>
>>> Please help!  All of the other feedback I have gotten before says 
>>> that the
>>> read should take no more than a few seconds.  45 seconds is way too 
>>> long for
>>> our customer and this is not even the largest filesize that will be 
>>> used.
>>>
>>> Thanks,
>>> Kate Kerekes
>>>
>>>
>>>
>>> _______________________________________________
>>> This is the private VTK discussion list. Please keep messages 
>>> on-topic. Check the FAQ at: <http://public.kitware.com/cgi-bin/vtkfaq>
>>> Follow this link to subscribe/unsubscribe:
>>> http://www.vtk.org/mailman/listinfo/vtkusers
>>>
>> _______________________________________________
>> This is the private VTK discussion list. Please keep messages 
>> on-topic. Check the FAQ at: <http://public.kitware.com/cgi-bin/vtkfaq>
>> Follow this link to subscribe/unsubscribe:
>> http://www.vtk.org/mailman/listinfo/vtkusers
>>
> 
> 
> 
> _______________________________________________
> This is the private VTK discussion list. Please keep messages on-topic. 
> Check the FAQ at: <http://public.kitware.com/cgi-bin/vtkfaq>
> Follow this link to subscribe/unsubscribe:
> http://www.vtk.org/mailman/listinfo/vtkusers
> 



From zach.malchano at gmail.com  Fri Oct  8 17:55:27 2004
From: zach.malchano at gmail.com (Zach Malchano)
Date: Fri, 8 Oct 2004 17:55:27 -0400
Subject: [vtkusers] Interpolating Sparse Scalars
In-Reply-To: <26250c18041008112450a692f9@mail.gmail.com>
References: <26250c18041008112450a692f9@mail.gmail.com>
Message-ID: <26250c180410081455483e4940@mail.gmail.com>

Hi All -

I am developing an application using the VTK v4.2. I have a surface
model of type vtkPolyData.  In addition, I have a sparse set of scalar
values at various point on the surface. I would like to smoothly
interpolate the scalar values between these points.

Any sample code or suggestions would be great.

many thanks,
- Zach


From neerajk at vitinfotech.com  Sat Oct  9 01:18:24 2004
From: neerajk at vitinfotech.com (Neerajk)
Date: Sat, 09 Oct 2004 00:18:24 -0500
Subject: [vtkusers] Regarding vtkFieldData
Message-ID: <90fa52a0df32c7d491aba8c93c63be92@vitinfotech.com>

Hi all

I want to add my field data into vtkpolydata to keep information about modified data, if I do apply any filter on polydata, then I am getting the same field data as it was earlier.
Here is what I am doing discussed below, please let me know if any part of the logic is wrong here or I am expecting a behavior which is not there.

a. I create vtkPolydata and add VtkPoints and vtkCellArray.

b. Then to this polydata I add vtkFieldData( Having a float array ) by calling SetFieldData.

c. Create a VtkDecimatePro filter and decimate the polydata created in step a.

d. Get the output polydata from filter and call GetFieldData().

Result: The FieldData come out without any modification but the vtk points are reduced.

Question again: 
1. Aren't filter suppose to modify field data?


vtkFloatArray *pElement = vtkFloatArray::New();
for (i=0; iInsertTuple1(i,i);
pElement->SetName("Element");
vtkFieldData *pFieldData = vtkFieldData::New();
pFieldData->AddArray(pElement);

vtkPolyData *cube = vtkPolyData::New();
cube->SetPoints(points);
cube->SetPolys(polys);
cube->GetPointData()->SetScalars(scalars);
cube->SetFieldData(pFieldData);

vtkDecimatePro *pFilter = vtkDecimatePro::New();
pFilter->SetInput( cube );
pFilter->SetTargetReduction( 50 );
pFilter->PreserveTopologyOn();
pFilter->BoundaryVertexDeletionOff();
pFilter->SetFeatureAngle( 90 );
pFilter->UpdateWholeExtent();

vtkFieldData *pFieldDataNew = pFilter->GetOutput()->GetFieldData();
vtkFloatArray *pElementNew = (vtkFloatArray *)pFieldDataNew->GetArray("Element");


Thanks & Regards
Neeraj




From jak4.scr at gmx.net  Sat Oct  9 11:29:44 2004
From: jak4.scr at gmx.net (=?ISO-8859-1?Q?=22Johannes_K=E4fer=22?=)
Date: Sat, 9 Oct 2004 17:29:44 +0200 (MEST)
Subject: [vtkusers] about vtkVolumeShearWarp
Message-ID: <15839.1097335784@www70.gmx.net>

Hello,

Before I get to your real question I have to inform you about a few things:
1) This ShearWarp implementation is not very good. It has view/geometric
errors. I tried it on my own and I won't be able to use it.
2) I mailed with one of the original authors and he told me not to use it.
It should have never been integrated into the vtk-CVS. He believes that the
current RayCasting in vtk is more accurate (true) and even faster (I think
they are equal). 

So in any case there is no need for this ShearWarp Implementation. If there
is another implementation which actually works and is faster than RayCasting
I would be enlighted to here about it.

Now to your real question. I'm almost certain that you did not include the
vtkVolumeShearWarpMapper.cxx in the make File. Please have a look at the
attached CMakeList.txt which contains the vtkVolumeShearWarpMapper class,
marked with #ShearWarp.

best regards
  Johannes


> 
> Hai all,
> 
> I downloaded vtkVolumeShearWarpmapper.cxx, vtkVolumeShearWarpmapper.h
> and vtkOpenGLShearWarpMapper.cxx, .h files and wrote a program for
> volume rendering using shearwarp mapper.
> I put those files in my current folder in Windowsxp environment
> 
> While linking it is giving linker errors about these classes given below
> 
> ShearWarp.obj : error LNK2001: unresolved external symbol
> "__declspec(dllimport) public: void __thiscall
> vtkVolumeShearWarpMapper::SetFunctionTypeToComposite(void)"
> (__imp_?SetFunctionTypeToComposite at vtkVolumeShearWarpMapper@@QAEXXZ)
> ShearWarp.obj : error LNK2001: unresolved external symbol
> "__declspec(dllimport) public: static class
> vtkOpenGLVolumeShearWarpMapper * __cdecl
> vtkOpenGLVolumeShearWarpMapper::New(void)"
> (__imp_?New at vtkOpenGLVolumeShearWarpMapper@@SAPAV1 at XZ)
> Debug/volShearWarp.exe : fatal error LNK1120: 2 unresolved externals
> Error executing link.exe.
> 
> 
> How to update this header files and . how can able to compile this
> application
> 
> Thanking u in anticipation,
> 
> Regards
> kalyan
> 
> 
> 
> 
> 
> Confidentiality Notice
> 
> The information contained in this electronic message and any attachments
> to this message are intended
> for the exclusive use of the addressee(s) and may contain confidential or
> privileged information. If
> you are not the intended recipient, please notify the sender at Wipro or
> Mailadmin at wipro.com immediately
> and destroy all copies of this message and any attachments.

-- 
GMX ProMail mit bestem Virenschutz http://www.gmx.net/de/go/mail
+++ Empfehlung der Redaktion +++ Internet Professionell 10/04 +++
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From eub at kablonet.com.tr  Sat Oct  9 12:36:58 2004
From: eub at kablonet.com.tr (Ugur BOZKAYA)
Date: Sat, 9 Oct 2004 19:36:58 +0300
Subject: [vtkusers] Re:  Interpolating Sparse Scalars
Message-ID: <20041009163250.7504F2ABE0@public.kitware.com>

Hi,

vtkProbeFilter is a probing tool for interpolating any type of data
attributes. It might help.

 

Ugur

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From manoj at bhu.ac.in  Sat Oct  9 12:28:36 2004
From: manoj at bhu.ac.in (Manoj Kumar Singh)
Date: Sat, 09 Oct 2004 21:28:36 +0500
Subject: [vtkusers] problem compiling  vtk-4.5.0  on fedora core 2
Message-ID: <dec11cd.11cddec@mail.bhu.ac.in>

I am trying to compile vtk-4.5.0 (dated 6 oct,2004) on fedora core 2 and
compilation fails with following error message:
Building object file vtkTkAppInit.o...
Building executable /usr/src/redhat/BUILD/VTK/bin/vtk...
/usr/src/redhat/BUILD/VTK/lib/libvtkRendering.so: undefined reference to
`crc32'/usr/src/redhat/BUILD/VTK/lib/libvtkRendering.so: undefined
reference to `compress'
collect2: ld returned 1 exit status
make[3]: *** [/usr/src/redhat/BUILD/VTK/bin/vtk] Error 1
make[2]: *** [default_target] Error 2
make[1]: *** [default_target_Wrapping_Tcl] Error 2
make: *** [default_target] Error 2
error: Bad exit status from /var/tmp/rpm-tmp.70179 (%build)

The compilation is successful till the libraries are built. The problem
starts when wrappers are built. What is going wrong? Any help in this is
appreciated. Thanks in advance
 Manoj



From camilo.jimenez at spymac.com  Sun Oct 10 15:07:34 2004
From: camilo.jimenez at spymac.com (camilo.jimenez at spymac.com)
Date: Sun, 10 Oct 2004 19:07:34 -0000
Subject: [vtkusers] Distance Map in VTK
Message-ID: <200409071403.05681.camilo.jimenez@spymac.com>



Hi all.

I want to make a geodesic distance map from a source point to a target point 
going throgout a tubular surface by the "shortest" way.

In 2D I can make it easy, cause I can scan Pixel by Pixel detecting boundaries 
and all that. But in 3D I havent found a easy way to do this. 

There is way to scan a discretized space with VTK or does somebody know a 
efficient and easy way to achieve this?

ThanX 


LinX



From I.deBoer at polytec.de  Mon Oct 11 04:02:16 2004
From: I.deBoer at polytec.de (de Boer Ingo)
Date: Mon, 11 Oct 2004 10:02:16 +0200
Subject: [vtkusers] Will there be MESA & VTK under Win32 ?
Message-ID: <1484AEC8AB498A4EB64D4A8137D23FD90145003A@02polywbr.waldbronn.polytec.de>

Hi,

I am trying to compile MESA and VTK under Win32 without any
luck...
Are there any efforts in that direction ?

greets
  Ingo


---
Dr.-Ing. Ingo H. de Boer

Polytec GmbH
Polytec-Platz 1-7, 76337 Waldbronn, Germany
phone: ++49 7243 604 106
fax  : ++49 7243 604 255
 


From s012132 at student.dtu.dk  Mon Oct 11 04:46:50 2004
From: s012132 at student.dtu.dk (Hildur Olafsdottir)
Date: Mon, 11 Oct 2004 10:46:50 +0200 (MEST)
Subject: [vtkusers] VTK_USE_ANSI_STDLIB
Message-ID: <Pine.GSO.4.58.0410111039080.28276@erlang.gbar.dtu.dk>

I am using a code which requires the option VTK_USE_ANSI_STDLIB to be
set to ON in VTK.  Unfortunately when I run CMake (with advanced values
shown), the option is not available.  I am using Visual Studio .NET, VTK 4.4
and CMake 2.0.  Has anyone experienced similar problems?
Best regards
Hildur


From brad.king at kitware.com  Mon Oct 11 08:01:21 2004
From: brad.king at kitware.com (Brad King)
Date: Mon, 11 Oct 2004 08:01:21 -0400
Subject: [vtkusers] VTK_USE_ANSI_STDLIB
In-Reply-To: <Pine.GSO.4.58.0410111039080.28276@erlang.gbar.dtu.dk>
References: <Pine.GSO.4.58.0410111039080.28276@erlang.gbar.dtu.dk>
Message-ID: <416A7611.9000109@kitware.com>

Hildur Olafsdottir wrote:
> I am using a code which requires the option VTK_USE_ANSI_STDLIB to be
> set to ON in VTK.  Unfortunately when I run CMake (with advanced values
> shown), the option is not available.  I am using Visual Studio .NET, VTK 4.4
> and CMake 2.0.  Has anyone experienced similar problems?

As of version 4.4, if the option is not available that means your 
compiler supports only one answer for the option.  In your case the VS 
.NET compiler supports only ON, so you should not have a problem.

-Brad


From sjk60 at iastate.edu  Mon Oct 11 08:09:07 2004
From: sjk60 at iastate.edu (Steve Kirstukas)
Date: Mon, 11 Oct 2004 07:09:07 -0500 (CDT)
Subject: [vtkusers] Re: Regarding vtkFieldData
Message-ID: <79711910412841@webmail.iastate.edu>

You need to tie the array to your points. fieldData, the way you are using it,
is attached to the polyData but not to the points.  Rather than explicitly using
vtkFieldData, try ...

cube->GetPointData()->AddArray( pElement );

Now the filter should work as you intended.

-Steve

> Date: Sat, 09 Oct 2004 00:18:24 -0500
> From: "Neerajk" <neerajk at vitinfotech.com>
> Subject: [vtkusers] Regarding vtkFieldData
> To: vtkusers at vtk.org
> 
> Hi all
> 
> I want to add my field data into vtkpolydata to keep information about modified
data, if I do apply any filter on polydata, then I am getting the same field
data as it was earlier.
> Here is what I am doing discussed below, please let me know if any part of the
logic is wrong here or I am expecting a behavior which is not there.
> 
> a. I create vtkPolydata and add VtkPoints and vtkCellArray.
> 
> b. Then to this polydata I add vtkFieldData( Having a float array ) by calling
SetFieldData.
> 
> c. Create a VtkDecimatePro filter and decimate the polydata created in step a.
> 
> d. Get the output polydata from filter and call GetFieldData().
> 
> Result: The FieldData come out without any modification but the vtk points are
reduced.
> 
> Question again: 
> 1. Aren't filter suppose to modify field data?
> 
> 
> vtkFloatArray *pElement = vtkFloatArray::New();
> for (i=0; iInsertTuple1(i,i);
> pElement->SetName("Element");
> vtkFieldData *pFieldData = vtkFieldData::New();
> pFieldData->AddArray(pElement);
> 
> vtkPolyData *cube = vtkPolyData::New();
> cube->SetPoints(points);
> cube->SetPolys(polys);
> cube->GetPointData()->SetScalars(scalars);
> cube->SetFieldData(pFieldData);
> 
> vtkDecimatePro *pFilter = vtkDecimatePro::New();
> pFilter->SetInput( cube );
> pFilter->SetTargetReduction( 50 );
> pFilter->PreserveTopologyOn();
> pFilter->BoundaryVertexDeletionOff();
> pFilter->SetFeatureAngle( 90 );
> pFilter->UpdateWholeExtent();
> 
> vtkFieldData *pFieldDataNew = pFilter->GetOutput()->GetFieldData();
> vtkFloatArray *pElementNew = (vtkFloatArray
*)pFieldDataNew->GetArray("Element");
> 
> 
> Thanks & Regards
> Neeraj
> 




From mathieu.malaterre at kitware.com  Mon Oct 11 08:57:23 2004
From: mathieu.malaterre at kitware.com (Mathieu Malaterre)
Date: Mon, 11 Oct 2004 08:57:23 -0400
Subject: [vtkusers] problem compiling  vtk-4.5.0  on fedora core 2
In-Reply-To: <dec11cd.11cddec@mail.bhu.ac.in>
References: <dec11cd.11cddec@mail.bhu.ac.in>
Message-ID: <416A8333.20201@kitware.com>

Manoj,

	Could you run these commands on your system:

nm -D /usr/lib/libz.so | grep crc32
nm -D /usr/lib/libz.so | grep compress

	For some reasons it looks like those symbols cannot be found in your 
zlib library.

	Anyway you can always turn zlib off from cmake interface to build the 
internal vtk zlib.

HTH
Mathieu

Manoj Kumar Singh wrote:
> I am trying to compile vtk-4.5.0 (dated 6 oct,2004) on fedora core 2 and
> compilation fails with following error message:
> Building object file vtkTkAppInit.o...
> Building executable /usr/src/redhat/BUILD/VTK/bin/vtk...
> /usr/src/redhat/BUILD/VTK/lib/libvtkRendering.so: undefined reference to
> `crc32'/usr/src/redhat/BUILD/VTK/lib/libvtkRendering.so: undefined
> reference to `compress'
> collect2: ld returned 1 exit status
> make[3]: *** [/usr/src/redhat/BUILD/VTK/bin/vtk] Error 1
> make[2]: *** [default_target] Error 2
> make[1]: *** [default_target_Wrapping_Tcl] Error 2
> make: *** [default_target] Error 2
> error: Bad exit status from /var/tmp/rpm-tmp.70179 (%build)
> 
> The compilation is successful till the libraries are built. The problem
> starts when wrappers are built. What is going wrong? Any help in this is
> appreciated. Thanks in advance
>  Manoj
> 
> _______________________________________________
> This is the private VTK discussion list. 
> Please keep messages on-topic. Check the FAQ at: <http://public.kitware.com/cgi-bin/vtkfaq>
> Follow this link to subscribe/unsubscribe:
> http://www.vtk.org/mailman/listinfo/vtkusers
> 





From normand at lina.univ-nantes.fr  Mon Oct 11 09:23:21 2004
From: normand at lina.univ-nantes.fr (Jean-Marie Normand)
Date: Mon, 11 Oct 2004 15:23:21 +0200
Subject: [vtkusers] Re: newbie question : vtkPlanes to represent a cube
In-Reply-To: <ck63fq$ske$1@sea.gmane.org>
References: <1097239132.11002.36.camel@pago.irin.sciences.univ-nantes.prive>
	<ck63fq$ske$1@sea.gmane.org>
Message-ID: <1097501001.1898.24.camel@pago.irin.sciences.univ-nantes.prive>

Hi Goodwin 
thanks for your answer.
I succeed in creating a cube as a collection of VtkPlanes, but I failed
to associate a vtkImplicitDataSet to a cube generated by a
vtkCubeSource.
This is the source code I've written but seems to be wrong :

// Creation of a Cube
vtkCubeSource *cube = vtkCubeSource::New();
cube->SetCenter(0.,0.,0.);
cube->SetXLength(5.);
cube->SetYLength(5.);
cube->SetZLength(5.);
  
vtkPolyDataMapper *cubeMapper = vtkPolyDataMapper::New();
cubeMapper->SetInput( cube->GetOutput() );
 
vtkActor *cubeActor = vtkActor::New();
cubeActor->SetMapper( cubeMapper );

// Declaration of an ImplicitDataSet
vtkImplicitDataSet *theCubeImplicit = vtkImplicitDataSet::New();
theCubeImplicit->SetDataSet((vtkDataSet*)cube->GetOutput());

Then I declare another cube created in the same way, and when I want to
perform a boolean op on them, I got the following error :

ERROR: In /home/jim/VTK/VTK/Filtering/vtkImplicitDataSet.cxx, line 78
vtkImplicitDataSet (0x829ae88): Can't evaluate dataset!


This is how I use the ImplicitBoolean function and which may be wrong:

vtkImplicitBoolean *theCutCube = vtkImplicitBoolean::New();
theCutCube->SetOperationTypeToIntersection();
theCutCube->AddFunction(theCubeImplicit);
theCutCube->AddFunction(theCubeImplicit2);

Afterwards, I declare a vtkSampleFunction, a vtkContourFilter, a
vtkPolyDataMapper and finally a vtkActor to display the result, but then
I get the error given above. But if I don't try to display the actor, I
don't get any error (which may be normal since I don't yet fully
understand how VTK works).

I'm sorry if my questions may seem dumb ones but I'm a total newbie with
VTK, thanks for the help.

Jim

Le ven 08/10/2004 ? 15:08, Goodwin Lawlor a ?crit :
> Hi Jim,
> 
> Have you had a look at vtkCubeSource to create your cube for you? If you
> want to do some boolean operations then implicit functions are best.
> Unfortunately, there's no implicit fuction for a cube but you could try to
> use vtkCubeSource with vtkImplicitDataSet.
> 
> hth
> 
> Goodwin
> 
> "Jean-Marie Normand" <normand at lina.univ-nantes.fr> wrote in message
> news:1097239132.11002.36.camel at pago.irin.sciences.univ-nantes.prive...
> > Hi, I'm new to VTK and I try to represent a cube with vtkPlanes (because
> > I want to perform Bollean operation on this cube afterwards) and I can't
> > manage to have this working.
> >
> > Here is the code I use, after these declarations, I create a sample
> > function, a contourfilter, a polydatamapper and an actor in order to
> > render the cube, but the window is always empty.
> >
> > I wonder if there is a problem with the normals of my cube, which should
> > be centered in (0,0,0) in 3D, I'm also wondering if I use the right
> > coordinates system (I thought that X would be oriented on the right of
> > the screen, Y upwards and Z toward the user). I may be wrong on this
> > point but I haven't been able to find what the orientation of the axes
> > look like.
> >
> > // Creating a cube by using vtkPlanes
> > vtkFloatArray *pcoords = vtkFloatArray::New();
> > pcoords->SetNumberOfComponents(3);
> > pcoords->SetNumberOfTuples(6);
> >
> > // the array of normals
> > vtkFloatArray *pnormals = vtkFloatArray::New();
> > pnormals->SetNumberOfComponents(3);
> > pnormals->SetNumberOfTuples(6);
> >
> > float size = 2.;
> > float half_size = size / 2.;
> > float pts[6][3] = { {0.0, 0.0, 0.}, {0., half_size, 0.0},
> >       {half_size, half_size, 0.0}, {-half_size, half_size,0.0},
> >     {0.0, half_size, half_size}, {0.0, half_size, -half_size} };
> >
> >   float nrmls[6][3] = { {0., 1., 0.},  {0., -1., 0.},
> >   {1., 0., 0.},  {-1., 0., 0.},
> > {0., 0., 1.},  {0., 0., -1.}  };
> >
> >   for (int i=0; i<6; i++)
> >   {
> >     pcoords->SetTuple(i, pts[i]);
> >     pnormals->InsertTuple(i, nrmls[i]);
> >   }
> >
> >   // Create vtkPoints and assign pcoords as the internal data array.
> >   vtkPoints* points = vtkPoints::New();
> >   points->SetData(pcoords);
> >
> >   vtkPlanes *cube = vtkPlanes::New();
> >   cube->SetPoints( points );
> >   cube->SetNormals( pnormals );
> >
> >
> > Any help would be appreciated
> > Thanks
> >
> > Jim
> >
> >
> > _______________________________________________
> > This is the private VTK discussion list.
> > Please keep messages on-topic. Check the FAQ at:
> <http://public.kitware.com/cgi-bin/vtkfaq>
> > Follow this link to subscribe/unsubscribe:
> > http://www.vtk.org/mailman/listinfo/vtkusers
> >
> 
> 
> 
> _______________________________________________
> This is the private VTK discussion list. 
> Please keep messages on-topic. Check the FAQ at: <http://public.kitware.com/cgi-bin/vtkfaq>
> Follow this link to subscribe/unsubscribe:
> http://www.vtk.org/mailman/listinfo/vtkusers



From moitinho at civil.ist.utl.pt  Mon Oct 11 09:24:24 2004
From: moitinho at civil.ist.utl.pt (Jose Paulo Moitinho de Almeida)
Date: Mon, 11 Oct 2004 14:24:24 +0100
Subject: [vtkusers] problem compiling  vtk-4.5.0  on fedora core 2
In-Reply-To: <416A8333.20201@kitware.com>
References: <dec11cd.11cddec@mail.bhu.ac.in> <416A8333.20201@kitware.com>
Message-ID: <200410111424.25325.moitinho@civil.ist.utl.pt>

On Monday 11 October 2004 13:57, Mathieu Malaterre wrote:
> Manoj,
>
>  Could you run these commands on your system:
>
> nm -D /usr/lib/libz.so | grep crc32
> nm -D /usr/lib/libz.so | grep compress
>
>  For some reasons it looks like those symbols cannot be found in your
> zlib library.
>
>  Anyway you can always turn zlib off from cmake interface to build the
> internal vtk zlib.
>

I remember having a similar problem

In my case it was /usr/X11/lib/libz.a (or something similar) standing "in 
front" of the normal libz. 

Regards

ZP


From chent at cs.queensu.ca  Mon Oct 11 11:46:36 2004
From: chent at cs.queensu.ca (Thomas - Kuiran Chen)
Date: Mon, 11 Oct 2004 11:46:36 -0400
Subject: [vtkusers] Re: Question about displaying scalar data as 2D image
Message-ID: <200410111546.i9BFkaiF013638@cs.queensu.ca>

Hi Neelam,

As far as I know, vtkImageMapper/vtkActor2D only shows two dimensional images.  If that is what you want, you have to use vtkLookupTable to set the display range of your image, e.g.,:

	// Gray scale lookup table
	vtkLookupTable *GrayLookupTable = vtkLookupTable::New();
	GrayLookupTable->SetTableRange(0, 255);	
	GrayLookupTable->SetHueRange(0, 0);
	GrayLookupTable->SetSaturationRange(0, 0);
	GrayLookupTable->SetValueRange(0, 1);
	GrayLookupTable->SetAlphaRange(0, 1);
	GrayLookupTable->Build();

Then use mapper to set the colors properly: e.g.

	vtkImageMapToColors* ImageMap2Colors = vtkImageMapToColors::New();
	ImageMap2Colors->SetInput(  InputImage->GetOutput() );
	ImageMap2Colors->SetLookupTable( GrayLookupTable );
	ImageMap2Colors->SetOutputFormatToLuminance();	

Finally pass the output of the vtkImageMapToColors to the vktImageActor.

My understanding of the use of vtkLookupTabe is to adjust the display range according to the intensity of the custom image.  More details can be found in the documentation of VTK.

Hope it helps, :-)

Cheers,

Thomas Kuiran Chen

The Image Analysis Laboratory
School of Computing
Queen's University at Kingston
Ontario, Canada K7L 3N6
Emai: chent at cs.queensu.ca





---------------------- Original Message ------------------------
From: neelam sanjeev verma <nsv80 at rediffmail.com>
To: chent at cs.queensu.ca <chent at cs.queensu.ca>
Sent: 2004-10-09 11:00:28
Subject: Question about displaying scalar data as 2D image

 ?hello sir 
    my problem is that i am unable to draw scalar data of structured grid by using vtkimagedata - vtkimagemapper -vtkactor2d,it is showing only gray color black and white image , my scalar data range is from -127 to 127 . is there any solution fot it. may u help me as u have post a mail to one user that u have solved this problem . may u detail the solution
Thanks For  reply .
bye 
Regards 
Neelam sanjeev verma
lucknow, India



--------------------------------------------------------------------
			


From lflong at doc.ic.ac.uk  Mon Oct 11 15:12:51 2004
From: lflong at doc.ic.ac.uk (Longfei Cong)
Date: Mon, 11 Oct 2004 20:12:51 +0100
Subject: [vtkusers] how to Set   CellType to VTK_TETRA (=10)
Message-ID: <002d01c4afc6$4df5b430$9c05a992@win.doc.ic.ac.uk>

Hi :
    i want to use  vtkPolyData  to build a hexahedron (VTK_TETRA (=10)) mesh, but the result mesh is VTK_QUAD (=9). How can i reset the type of the mesh.Wish for help!!!!!
Thank you!!!!!

Longfei
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From arbvtk at yahoo.fr  Mon Oct 11 16:45:31 2004
From: arbvtk at yahoo.fr (=?iso-8859-1?q?REGAT-BARREL=20Aur=E9lien?=)
Date: Mon, 11 Oct 2004 22:45:31 +0200 (CEST)
Subject: [vtkusers] VTK_USE_ANSI_STDLIB
In-Reply-To: <416A7611.9000109@kitware.com>
Message-ID: <20041011204531.48619.qmail@web25210.mail.ukl.yahoo.com>

Brad King <brad.king at kitware.com> wrote:

Hildur Olafsdottir wrote:
> I am using a code which requires the option VTK_USE_ANSI_STDLIB to be
> set to ON in VTK. Unfortunately when I run CMake (with advanced values
> shown), the option is not available. I am using Visual Studio .NET, VTK 4.4
> and CMake 2.0. Has anyone experienced similar problems?

As of version 4.4, if the option is not available that means your 
compiler supports only one answer for the option. In your case the VS 
.NET compiler supports only ON, so you should not have a problem.


It is the case with VC++ 7.1 (.Net 2003).


Aur?lien REGAT-BARREL 
My VTK blog : http://aurelien_regat-barrel.blogspot.com


		
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From goodwin.lawlor at ucd.ie  Mon Oct 11 17:00:38 2004
From: goodwin.lawlor at ucd.ie (Goodwin Lawlor)
Date: Mon, 11 Oct 2004 22:00:38 +0100
Subject: [vtkusers] Re: Re: newbie question : vtkPlanes to represent a cube
References: <1097239132.11002.36.camel@pago.irin.sciences.univ-nantes.prive><ck63fq$ske$1@sea.gmane.org>
	<1097501001.1898.24.camel@pago.irin.sciences.univ-nantes.prive>
Message-ID: <ckes9m$qss$1@sea.gmane.org>

Hi Jim,

> ERROR: In /home/jim/VTK/VTK/Filtering/vtkImplicitDataSet.cxx, line 78
> vtkImplicitDataSet (0x829ae88): Can't evaluate dataset!

This filter needs the input to have a set a scalars, presumably representing
a distance function.


> But if I don't try to display the actor, I
> don't get any error (which may be normal since I don't yet fully
> understand how VTK works).

That's because the pipeline hasn't been asked to execute by the renderer.

I had another look at the first method you tried using vtkPlanes... There is
some unusual behavior here that I dont have time to go through but you can
play with this code... contour values of -0.75 work but values >-0.75 crash
the contour filter. Looking at the input data to the contour as an image is
looks like vtkPlanes has trouble evaluating the function where it is
equidistant from 3 planes. I am not sure you had the point values correct
either:

package require vtk

vtkPoints points
    points SetNumberOfPoints 6
    points SetPoint 0 1 0 0
    points SetPoint 1 -1 0 0
    points SetPoint 2 0 1 0
    points SetPoint 3 0 -1 0
    points SetPoint 4 0 0 1
    points SetPoint 5 0 0 -1
vtkFloatArray norms
    norms SetNumberOfComponents 3
    norms SetNumberOfTuples 6
    norms SetTuple3 0 1 0 0
    norms SetTuple3 1 -1 0 0
    norms SetTuple3 2 0 1 0
    norms SetTuple3 3 0 -1 0
    norms SetTuple3 4 0 0 1
    norms SetTuple3 5 0 0 -1

vtkPlanes planes
    planes SetPoints points
    planes SetNormals norms

vtkSampleFunction sample
    sample SetImplicitFunction planes
    sample SetModelBounds 2 -2 2 -2 2 -2
    sample SetSampleDimensions 40 40 40
    sample Update

vtkImageViewer viewer
    viewer SetInput [sample GetOutput]
    viewer SetColorWindow 2
    viewer SetColorLevel 0
    viewer SetZSlice 2
    viewer Render

scale .s -command cb
pack .s

proc cb {var} {
    viewer SetZSlice $var
    viewer Render
}

vtkContourFilter contour
    contour SetInput [sample GetOutput]
    contour SetValue 0 -0.75
vtkPolyDataMapper mapper
    mapper SetInput [contour GetOutput]
vtkActor actor
    actor SetMapper mapper
    [actor GetProperty] SetRepresentationToWireframe
vtkRenderer ren
    ren AddActor actor
vtkRenderWindow renwin
    renwin AddRenderer ren
vtkRenderWindowInteractor iren
    iren SetRenderWindow renwin
    iren AddObserver UserEvent {console show}
    iren Initialize





From j-mosso at uniandes.edu.co  Mon Oct 11 21:22:51 2004
From: j-mosso at uniandes.edu.co (John Mosso)
Date: Mon, 11 Oct 2004 20:22:51 -0500
Subject: [vtkusers] How to get image dimensions
Message-ID: <001e01c4aff9$fe4f3da0$37ac6ac8@arwen>

Greetings!

I'm trying to get the dimension of a bmp file using vtkBMPReader. I'm using GetDataExtent but I only get a vector with zeros.
This is the code I'm using for:

bmpReader = vtkBMPReader::New();
bmpReader->SetFileName("C:\\MyFile.bmp");

int Extent[6];
bmpReader->GetDataExtent(Extent);

Thanks in advance
John Mosso.
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From zfjgo at 126.com  Mon Oct 11 21:26:43 2004
From: zfjgo at 126.com (=?gb2312?B?emZqZ28=?=)
Date: Tue, 12 Oct 2004 09:26:43 +0800 (CST)
Subject: [vtkusers] How to use vtkPicker
Message-ID: <416B32D3.0000A3.26726@m64.126.com>

Hello,everybody!!

I want to use vtkPicker and vtkRenderWindowInteractor to interact each other.
That is,I display an 3D object in RenderWindow,and I am eage to interact with it, utilize the mouse to pick two point on the object and obtain their coordinate value and data,connect them with a line.

How to realize it?

Help me!
 C++ code is had better.

Thanks a lot.

                                                   Rocky
 




 




-----------------------------------------------------------
???http://www.126.com??260M????????!
???????????????, ????????!

From listboss at gmail.com  Tue Oct 12 00:05:31 2004
From: listboss at gmail.com (listboss)
Date: Tue, 12 Oct 2004 00:05:31 -0400
Subject: [vtkusers] Image reading order in vtkImageReader class
Message-ID: <1a1893c04101121057601be2a@mail.gmail.com>

Hi

I was just curious why VTK insists on reading image files from bottom to up.

Is there any programming merit to it or it's trying to be consistent
to our typical coordinate image idea which has a lower left origin ?

Thanks
Hamid


From I.deBoer at polytec.de  Tue Oct 12 03:10:17 2004
From: I.deBoer at polytec.de (de Boer Ingo)
Date: Tue, 12 Oct 2004 09:10:17 +0200
Subject: [vtkusers] How to use vtkPicker
Message-ID: <1484AEC8AB498A4EB64D4A8137D23FD901450041@02polywbr.waldbronn.polytec.de>

Hi,

this should help...

http://public.kitware.com/pipermail/vtkusers/2004-April/073344.html

greets
  Ingo

---
Dr.-Ing. Ingo H. de Boer

Polytec GmbH
Polytec-Platz 1-7, 76337 Waldbronn, Germany
phone: ++49 7243 604 106
fax  : ++49 7243 604 255
 
> I want to use vtkPicker and vtkRenderWindowInteractor to 
> interact each other.
> That is,I display an 3D object in RenderWindow,and I am eage 
> to interact with it, utilize the mouse to pick two point on 
> the object and obtain their coordinate value and data,connect 
> them with a line.
> 
> How to realize it?
> 
> Help me!
>  C++ code is had better.
> 


From I.deBoer at polytec.de  Tue Oct 12 03:11:46 2004
From: I.deBoer at polytec.de (de Boer Ingo)
Date: Tue, 12 Oct 2004 09:11:46 +0200
Subject: [vtkusers] How to get image dimensions
Message-ID: <1484AEC8AB498A4EB64D4A8137D23FD901450042@02polywbr.waldbronn.polytec.de>

Hi,

do something like

pvtkBMPReader = vtkBMPReader::New();
pvtkBMPReader->SetFileName("C:\\MyFile.bmp");
pvtkBMPReader->Update();
pvtkBMPReader->GetOutput()->GetDimensions(idim);

greets
 Ingo

---
Dr.-Ing. Ingo H. de Boer

Polytec GmbH
Polytec-Platz 1-7, 76337 Waldbronn, Germany
phone: ++49 7243 604 106
fax  : ++49 7243 604 255

I'm trying to get the dimension of a bmp file using vtkBMPReader. I'm using GetDataExtent but I only get a vector with zeros.
This is the code I'm using for:

bmpReader = vtkBMPReader::New();
bmpReader->SetFileName("C:\\MyFile.bmp");

int Extent[6];
bmpReader->GetDataExtent(Extent);

Thanks in advance
John Mosso.


From lflong at doc.ic.ac.uk  Tue Oct 12 07:18:26 2004
From: lflong at doc.ic.ac.uk (Longfei Cong)
Date: Tue, 12 Oct 2004 12:18:26 +0100
Subject: [vtkusers] set the cell type 
Message-ID: <001701c4b04d$36feb8d0$9c05a992@win.doc.ic.ac.uk>

Hi :
    i want to use  vtkPolyData  to build a hexahedron (VTK_TETRA (=10)) mesh, but the result mesh is VTK_QUAD (=9). How can i reset the type of the mesh.Wish for help!!!!!
Thank you!!!!!

Longfei
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From brian at maths.lth.se  Tue Oct 12 07:44:25 2004
From: brian at maths.lth.se (Brian Lading)
Date: Tue, 12 Oct 2004 13:44:25 +0200
Subject: [vtkusers] installing vtk cvs version. tcl works, cpp does not!
Message-ID: <1097581464.2269.11.camel@localhost.localdomain>

Hello there! 

I have just installed the cvs version of VTK (a few days old).
Everything compiles and 'makes' ok. But when I do a testing of the
examples, eg Medical1.xxx I have no problems with the tcl and the python
scripts BUT the cpp programs all crashes with a segmentation fault! 

The cpp programs compiles and links, and it is possible to instantiate
objects, but its NOT possible to use the objects!, eg for Medical1.cxx:

  vtkRenderer *aRenderer = vtkRenderer::New();
  vtkRenderWindow *renWin = vtkRenderWindow::New();
  renWin->AddRenderer(aRenderer);
  vtkRenderWindowInteractor *iren = vtkRenderWindowInteractor::New();
  iren->SetRenderWindow(renWin);
 
  vtkVolume16Reader *v16 = vtkVolume16Reader::New();
/* until this point everything is ok! */
  v16->SetDataDimensions (64,64);
--- > Segmentation fault


What Da f... is wrong? 

Have A Beautiful One 

Brian


-----------------------------------------------------------------------
-----------------------------------------------------------------------

My system:

DISTRO:  DEBIAN unstable distro installed a few month ago.
COMPILER: g++ (GCC) 3.3.4 (Debian 1:3.3.4-13)
GNU Octave, version 2.1.60 (i386-pc-linux-gnu).

-----------------------------------------------------------------------
AND just to make an impressive long 'first timer in a forum'-mail, heres
my CMakeCache.txt: 
-----------------------------------------------------------------------
-----------------------------------------------------------------------
-----------------------------------------------------------------------

//Build the documentation (Doxygen).
BUILD_DOCUMENTATION:BOOL=OFF

//Build VTK examples.
BUILD_EXAMPLES:BOOL=ON

//Build VTK with shared libraries.
BUILD_SHARED_LIBS:BOOL=ON

//Build the testing tree.
BUILD_TESTING:BOOL=ON

//Path to a program.
CMAKE_AR:FILEPATH=/usr/bin/ar

//For backwards compatibility, what version of CMake commands and
// syntax should this version of CMake allow.
CMAKE_BACKWARDS_COMPATIBILITY:STRING=2.0

//Choose the type of build, options are: None(CMAKE_CXX_FLAGS or
// CMAKE_C_FLAGS used) Debug Release RelWithDebInfo MinSizeRel.
//
CMAKE_BUILD_TYPE:STRING=

//C++ compiler
CMAKE_CXX_COMPILER:STRING=g++

//Flags used by the compiler during all build types.
CMAKE_CXX_FLAGS:STRING=

//Flags used by the compiler during debug builds.
CMAKE_CXX_FLAGS_DEBUG:STRING=-g

//Flags used by the compiler during release minsize builds.
CMAKE_CXX_FLAGS_MINSIZEREL:STRING=-Os

//Flags used by the compiler during release builds (/MD /Ob1 /Oi
// /Ot /Oy /Gs will produce slightly less optimized but smaller
// files).
CMAKE_CXX_FLAGS_RELEASE:STRING=-O3

//Flags used by the compiler during Release with Debug Info builds.
//
CMAKE_CXX_FLAGS_RELWITHDEBINFO:STRING=-O2 -g

//C compiler
CMAKE_C_COMPILER:STRING=gcc

//Flags for C compiler.
CMAKE_C_FLAGS:STRING=

//Flags used by the compiler during debug builds.
CMAKE_C_FLAGS_DEBUG:STRING=-g

//Flags used by the compiler during release minsize builds.
CMAKE_C_FLAGS_MINSIZEREL:STRING=-Os

//Flags used by the compiler during release builds (/MD /Ob1 /Oi
// /Ot /Oy /Gs will produce slightly less optimized but smaller
// files).
CMAKE_C_FLAGS_RELEASE:STRING=-O3

//Flags used by the compiler during Release with Debug Info builds.
//
CMAKE_C_FLAGS_RELWITHDEBINFO:STRING=-O2 -g

//Flags used by the linker.
CMAKE_EXE_LINKER_FLAGS:STRING=

//Flags used by the linker during debug builds.
CMAKE_EXE_LINKER_FLAGS_DEBUG:STRING=

//Flags used by the linker during release minsize builds.
CMAKE_EXE_LINKER_FLAGS_MINSIZEREL:STRING=

//Flags used by the linker during release builds.
CMAKE_EXE_LINKER_FLAGS_RELEASE:STRING=

//Flags used by the linker during Release with Debug Info builds.
//
CMAKE_EXE_LINKER_FLAGS_RELWITHDEBINFO:STRING=

//Use HP pthreads.
CMAKE_HP_PTHREADS:BOOL=OFF

//Install path prefix, prepended onto install directories.
CMAKE_INSTALL_PREFIX:PATH=/usr/local

//Path to a program.
CMAKE_MAKE_PROGRAM:FILEPATH=/usr/bin/make

//Flags used by the linker during the creation of modules.
CMAKE_MODULE_LINKER_FLAGS:STRING=

//Flags used by the linker during debug builds.
CMAKE_MODULE_LINKER_FLAGS_DEBUG:STRING=

//Flags used by the linker during release minsize builds.
CMAKE_MODULE_LINKER_FLAGS_MINSIZEREL:STRING=

//Flags used by the linker during release builds.
CMAKE_MODULE_LINKER_FLAGS_RELEASE:STRING=

//Flags used by the linker during Release with Debug Info builds.
//
CMAKE_MODULE_LINKER_FLAGS_RELWITHDEBINFO:STRING=

//Path to a program.
CMAKE_RANLIB:FILEPATH=/usr/bin/ranlib

//Flags used by the linker during the creation of dll's.
CMAKE_SHARED_LINKER_FLAGS:STRING=

//Flags used by the linker during debug builds.
CMAKE_SHARED_LINKER_FLAGS_DEBUG:STRING=

//Flags used by the linker during release minsize builds.
CMAKE_SHARED_LINKER_FLAGS_MINSIZEREL:STRING=

//Flags used by the linker during release builds.
CMAKE_SHARED_LINKER_FLAGS_RELEASE:STRING=

//Flags used by the linker during Release with Debug Info builds.
//
CMAKE_SHARED_LINKER_FLAGS_RELWITHDEBINFO:STRING=

//If set, runtime paths are not added when using shared libraries.
//
CMAKE_SKIP_RPATH:BOOL=OFF

//Thread library used.
CMAKE_THREAD_LIBS:STRING=-lpthread

//Use the pthreads library.
CMAKE_USE_PTHREADS:BOOL=ON

//If true, cmake will use relative paths in makefiles and projects.
//
CMAKE_USE_RELATIVE_PATHS:BOOL=OFF

//Use sproc libs.
CMAKE_USE_SPROC:BOOL=OFF

//Use the win32 thread library.
CMAKE_USE_WIN32_THREADS:BOOL=OFF

//If this value is on, makefiles will be generated without the
// .SILENT directive, and all commands will be echoed to the console
// during the make.  This is useful for debugging only. With Visual
// Studio IDE projects all commands are done without /nologo.
CMAKE_VERBOSE_MAKEFILE:BOOL=OFF

//X11 extra flags.
CMAKE_X_CFLAGS:STRING=-I/usr/X11R6/include

//Libraries and options used in X11 programs.
CMAKE_X_LIBS:STRING=-lSM;-lICE;-lSM;-lICE;/usr/X11R6/lib/libX11.so;/usr/X11R6/lib/libXext.so;/usr/X11R6/lib/libX11.so;/usr/X11R6/lib/libXext.so

//Path to program used to compress files for transfer to the dart
// server
COMPRESSIONCOMMAND:FILEPATH=/bin/gzip

//Path to the coverage program that Dart client uses for performing
// coverage inspection
COVERAGE_COMMAND:FILEPATH=/usr/bin/gcov

//Path to a program.
CVSCOMMAND:FILEPATH=/usr/bin/cvs

//Options passed to the cvs update command.
CVS_UPDATE_OPTIONS:STRING=-d -A -P

//Limit of reported errors, -1 reports all.
DART_BUILD_ERROR_REPORT_LIMIT:BOOL=OFF

//Limit of reported warnings, -1 reports all.
DART_BUILD_WARNING_REPORT_LIMIT:BOOL=OFF

//If you have Dart installed, where is it located?
DART_ROOT:PATH=DART_ROOT-NOTFOUND

//Time alloted for a test before Dart will kill the test.
DART_TESTING_TIMEOUT:STRING=1500

//Show the actual output of the build, or if off show a . for each
// 1024 bytes.
DART_VERBOSE_BUILD:BOOL=OFF

//Should Dart server send email when build errors are found in
// Continuous builds?
DELIVER_CONTINUOUS_EMAIL:BOOL=OFF

//Value Computed by CMake
DICOMParser_BINARY_DIR:STATIC=/home/mig/installed/vtkCVS/VTK/Utilities/DICOMParser

//Value Computed by CMake
DICOMParser_SOURCE_DIR:STATIC=/home/mig/installed/vtkCVS/VTK/Utilities/DICOMParser

//Path to gunzip executable
GUNZIPCOMMAND:FILEPATH=/bin/gunzip

//Path to java command, used by the Dart server to create html.
//
JAVACOMMAND:FILEPATH=/usr/bin/java

//Command used to build entire project from the command line.
MAKECOMMAND:STRING=/usr/bin/make -i

//What is the path where the file GL/gl_mangle.h can be found
MANGLED_MESA_INCLUDE_DIR:PATH=MANGLED_MESA_INCLUDE_DIR-NOTFOUND

//Where can the MesaGL library be found
MANGLED_MESA_LIBRARY:FILEPATH=MANGLED_MESA_LIBRARY-NOTFOUND

//What is the path where the file GL/osmesa.h can be found
MANGLED_OSMESA_INCLUDE_DIR:PATH=MANGLED_OSMESA_INCLUDE_DIR-NOTFOUND

//Where can the OSMesa library be found
MANGLED_OSMESA_LIBRARY:FILEPATH=MANGLED_OSMESA_LIBRARY-NOTFOUND

//Path to Rational purify command, used for memory error detection.
//
MEMORYCHECK_COMMAND:FILEPATH=MEMORYCHECK_COMMAND-NOTFOUND

//File that contains suppressions for the memmory checker
MEMORYCHECK_SUPPRESSIONS_FILE:FILEPATH=

//If a second mpi library is necessary, specify it here.
MPI_EXTRA_LIBRARY:FILEPATH=/usr/lib/libmpi++.so

//What is the path where the file mpi.h can be found
MPI_INCLUDE_PATH:PATH=/usr/lib/mpich/include

//Where can one of the mpi or mpich libraries be found
MPI_LIBRARY:FILEPATH=/usr/lib/libmpi.so

//What is the path where the file GL/gl.h can be found
OPENGL_INCLUDE_DIR:PATH=/usr/include

//Where can one of the MesaGL or GL libraries be found
OPENGL_gl_LIBRARY:FILEPATH=/usr/lib/libGL.so

//Where can one of the MesaGLU or GLU libraries be found
OPENGL_glu_LIBRARY:FILEPATH=/usr/lib/libGLU.so

//What is the path where the file GL/xmesa.h can be found
OPENGL_xmesa_INCLUDE_DIR:PATH=OPENGL_xmesa_INCLUDE_DIR-NOTFOUND

//What is the path where the file GL/osmesa.h can be found
OSMESA_INCLUDE_DIR:PATH=/usr/include

//Where can the OSMesa library be found
OSMESA_LIBRARY:FILEPATH=/usr/X11R6/lib/libOSMesa.so

//Path to a program.
PYTHON_EXECUTABLE:FILEPATH=/usr/bin/python2.3

//What is the path where the file Python.h can be found
PYTHON_INCLUDE_PATH:PATH=/usr/include/python2.3

//Where can one of the python23, python2.3, python2.3.dll, python22,
// python2.2, python2.2.dll, python21, python2.1, python2.1.dll,
// python20, python2.0, python2.0.dll, python16, python1.6,
python1.6.dll,
// python15, python1.5 or python1.5.dll libraries be found
PYTHON_LIBRARY:FILEPATH=/usr/lib/python2.3/config/libpython2.3.so

//Utility library needed for vtkpython
PYTHON_UTIL_LIBRARY:FILEPATH=/usr/lib/libutil.so

//Path to scp command, used by some Dart clients for submitting
// results to a Dart server (when not using ftp for submissions)
//
SCPCOMMAND:FILEPATH=/usr/bin/scp

//Name of the computer/site where compile is being run
SITE:STRING=momo

//What is the path where the file tcl.h can be found
TCL_INCLUDE_PATH:PATH=/usr/include/tcl8.3

//Where can one of the tcl, tcl84, tcl8.4, tcl83, tcl8.3, tcl82,
// tcl8.2, tcl80 or tcl8.0 libraries be found
TCL_LIBRARY:FILEPATH=/usr/lib/libtcl8.3.so

//Path to a program.
TCL_TCLSH:FILEPATH=/usr/bin/tclsh

//Build with static Tcl/Tk support. TCL_LIBRARY and TK_LIBRARY
// must point to the corresponding Tcl/Tk static libraries (example,
// tcl84sx.lib, tk84sx.lib).
TCL_TK_STATIC:BOOL=OFF

//What is the path where the file tk.h can be found
TK_INCLUDE_PATH:PATH=/usr/include/tcl8.3

//Where can one of the tk, tk84, tk8.4, tk83, tk8.3, tk82, tk8.2,
// tk80 or tk8.0 libraries be found
TK_LIBRARY:FILEPATH=/usr/lib/libtk8.3.so

//Value Computed by CMake
VTKEXPAT_BINARY_DIR:STATIC=/home/mig/installed/vtkCVS/VTK/Utilities/vtkexpat

//Value Computed by CMake
VTKEXPAT_SOURCE_DIR:STATIC=/home/mig/installed/vtkCVS/VTK/Utilities/vtkexpat

//Value Computed by CMake
VTKFREETYPE_BINARY_DIR:STATIC=/home/mig/installed/vtkCVS/VTK/Utilities/freetype

//Value Computed by CMake
VTKFREETYPE_SOURCE_DIR:STATIC=/home/mig/installed/vtkCVS/VTK/Utilities/freetype

//Value Computed by CMake
VTKFTGL_BINARY_DIR:STATIC=/home/mig/installed/vtkCVS/VTK/Utilities/ftgl

//Value Computed by CMake
VTKFTGL_SOURCE_DIR:STATIC=/home/mig/installed/vtkCVS/VTK/Utilities/ftgl

//Value Computed by CMake
VTKJPEG_BINARY_DIR:STATIC=/home/mig/installed/vtkCVS/VTK/Utilities/vtkjpeg

//Value Computed by CMake
VTKJPEG_SOURCE_DIR:STATIC=/home/mig/installed/vtkCVS/VTK/Utilities/vtkjpeg

//Value Computed by CMake
VTKPNG_BINARY_DIR:STATIC=/home/mig/installed/vtkCVS/VTK/Utilities/vtkpng

//Value Computed by CMake
VTKPNG_SOURCE_DIR:STATIC=/home/mig/installed/vtkCVS/VTK/Utilities/vtkpng

//Value Computed by CMake
VTKTIFF_BINARY_DIR:STATIC=/home/mig/installed/vtkCVS/VTK/Utilities/vtktiff

//Value Computed by CMake
VTKTIFF_SOURCE_DIR:STATIC=/home/mig/installed/vtkCVS/VTK/Utilities/vtktiff

//Value Computed by CMake
VTKZLIB_BINARY_DIR:STATIC=/home/mig/installed/vtkCVS/VTK/Utilities/vtkzlib

//Value Computed by CMake
VTKZLIB_SOURCE_DIR:STATIC=/home/mig/installed/vtkCVS/VTK/Utilities/vtkzlib

//Value Computed by CMake
VTK_BINARY_DIR:STATIC=/home/mig/installed/vtkCVS/VTK

//What is the path where the file VTKData.readme can be found
VTK_DATA_ROOT:PATH=/home/mig/installed/VTK42/VTKData-release-4-2

//Build leak checking support into VTK.
VTK_DEBUG_LEAKS:BOOL=OFF

//Path to a program.
VTK_MPIRUN_EXE:FILEPATH=/usr/bin/mpirun

//Maximum number of processors available to run parallel applications.
// (see /home/mig/installed/vtkCVS/VTK/CMakeLists.txt for more
// info.)
VTK_MPI_MAX_NUMPROCS:STRING=1

//Flag used by mpi to specify the number of processes, the next
// option will be the number of processes. (see
/home/mig/installed/vtkCVS/VTK/CMakeLists.txt
// for more info.)
VTK_MPI_NUMPROC_FLAG:STRING=-np

//These flags will come after all flags given to MPIRun.(see
/home/mig/installed/vtkCVS/VTK/CMakeLists.txt
// for more info.)
VTK_MPI_POSTFLAGS:STRING=

//These flags will be directly before the executable that is being
// run by VTK_MPIRUN_EXE. (see
/home/mig/installed/vtkCVS/VTK/CMakeLists.txt
// for more info.)
VTK_MPI_PREFLAGS:STRING=

//The opengl library being used supports off screen Mesa calls.
//
VTK_OPENGL_HAS_OSMESA:BOOL=ON

//Value Computed by CMake
VTK_SOURCE_DIR:STATIC=/home/mig/installed/vtkCVS/VTK

//Build VTK with 64 bit ids
VTK_USE_64BIT_IDS:BOOL=OFF

//Turn this option off and tests will not popup windows
VTK_USE_DISPLAY:BOOL=ON

//Build VTK with gl2ps support.
VTK_USE_GL2PS:BOOL=ON

//Build the vtkHybrid kit.
VTK_USE_HYBRID:BOOL=ON

//Use mangled Mesa with OpenGL.
VTK_USE_MANGLED_MESA:BOOL=OFF

//Use Message Passing Interface (MPI) library for parallel support.
//
VTK_USE_MPI:BOOL=ON

//Build the vtkParallel kit.
VTK_USE_PARALLEL:BOOL=ON

//Build the vtkPatented kit.  These classes are patented and may
// require a license to use.
VTK_USE_PATENTED:BOOL=ON

//Build the vtkRendering kit.  Needed for displaying data.
VTK_USE_RENDERING:BOOL=ON

//Use the system's expat library.
VTK_USE_SYSTEM_EXPAT:BOOL=OFF

//Use the system's jpeg library.
VTK_USE_SYSTEM_JPEG:BOOL=OFF

//Use the system's png library.
VTK_USE_SYSTEM_PNG:BOOL=OFF

//Use the system's tiff library.
VTK_USE_SYSTEM_TIFF:BOOL=OFF

//Use the system's zlib library.
VTK_USE_SYSTEM_ZLIB:BOOL=OFF

//Build VTK with VolumePro support.
VTK_USE_VOLUMEPRO:BOOL=OFF

//Where can the hints file be found
VTK_WRAP_HINTS:FILEPATH=/home/mig/installed/vtkCVS/VTK/Wrapping/hints

//Wrap VTK classes into the Java language.
VTK_WRAP_JAVA:BOOL=OFF

//Wrap VTK classes into the Python language.
VTK_WRAP_PYTHON:BOOL=ON

//Path to an internal program.
VTK_WRAP_PYTHON_EXE:FILEPATH=/home/mig/installed/vtkCVS/VTK/bin/vtkWrapPython

//Wrap VTK classes into the TCL language.
VTK_WRAP_TCL:BOOL=ON

//Path to an internal program.
VTK_WRAP_TCL_EXE:FILEPATH=/home/mig/installed/vtkCVS/VTK/bin/vtkWrapTcl

//Path to an internal program.
VTK_WRAP_TCL_INIT_EXE:FILEPATH=/home/mig/installed/vtkCVS/VTK/bin/vtkWrapTclInit

//What is the path where the file X11/X.h can be found
X11_X11_INCLUDE_PATH:PATH=/usr/X11R6/include

//Where can the X11 library be found
X11_X11_LIB:FILEPATH=/usr/X11R6/lib/libX11.so

//Where can the Xext library be found
X11_Xext_LIB:FILEPATH=/usr/X11R6/lib/libXext.so

//What is the path where the file X11/Xlib.h can be found
X11_Xlib_INCLUDE_PATH:PATH=/usr/X11R6/include

//What is the path where the file X11/Xutil.h can be found
X11_Xutil_INCLUDE_PATH:PATH=/usr/X11R6/include

//Dependencies for the target
vtkCommonPython_LIB_DEPENDS:STATIC=vtkCommon;

//Dependencies for the target
vtkCommonTCL_LIB_DEPENDS:STATIC=vtkCommon;/usr/lib/libtcl8.3.so;m;

//Dependencies for the target
vtkCommon_LIB_DEPENDS:STATIC=-lpthread;-ldl;-lm;

//Dependencies for target
vtkDICOMParser_LIB_DEPENDS:STATIC=

//Dependencies for the target
vtkFilteringPython_LIB_DEPENDS:STATIC=vtkFiltering;vtkCommonPython;

//Dependencies for the target
vtkFilteringTCL_LIB_DEPENDS:STATIC=vtkFiltering;vtkCommonTCL;

//Dependencies for the target
vtkFiltering_LIB_DEPENDS:STATIC=vtkCommon;

//Dependencies for the target
vtkGenericFilteringPython_LIB_DEPENDS:STATIC=vtkGenericFiltering;vtkFilteringPython;

//Dependencies for the target
vtkGenericFilteringTCL_LIB_DEPENDS:STATIC=vtkGenericFiltering;vtkFilteringTCL;

//Dependencies for the target
vtkGenericFiltering_LIB_DEPENDS:STATIC=vtkFiltering;

//Dependencies for the target
vtkGraphicsPython_LIB_DEPENDS:STATIC=vtkGraphics;vtkFilteringPython;

//Dependencies for the target
vtkGraphicsTCL_LIB_DEPENDS:STATIC=vtkGraphics;vtkFilteringTCL;

//Dependencies for the target
vtkGraphics_LIB_DEPENDS:STATIC=vtkFiltering;

//Dependencies for the target
vtkHybridPython_LIB_DEPENDS:STATIC=vtkHybrid;vtkRenderingPython;vtkIOPython;vtkPatentedPython;

//Dependencies for the target
vtkHybridTCL_LIB_DEPENDS:STATIC=vtkHybrid;vtkRenderingTCL;vtkIOTCL;vtkPatentedTCL;

//Dependencies for the target
vtkHybrid_LIB_DEPENDS:STATIC=vtkRendering;vtkIO;vtkPatented;

//Dependencies for the target
vtkIOPython_LIB_DEPENDS:STATIC=vtkIO;vtkFilteringPython;

//Dependencies for the target
vtkIOTCL_LIB_DEPENDS:STATIC=vtkIO;vtkFilteringTCL;

//Dependencies for the target
vtkIO_LIB_DEPENDS:STATIC=vtkFiltering;vtkDICOMParser;vtkpng;vtkzlib;vtkjpeg;vtktiff;vtkexpat;

//Dependencies for the target
vtkImagingPython_LIB_DEPENDS:STATIC=vtkImaging;vtkFilteringPython;

//Dependencies for the target
vtkImagingTCL_LIB_DEPENDS:STATIC=vtkImaging;vtkFilteringTCL;

//Dependencies for the target
vtkImaging_LIB_DEPENDS:STATIC=vtkFiltering;

//Dependencies for the target
vtkParallelPython_LIB_DEPENDS:STATIC=vtkParallel;vtkRenderingPython;vtkIOPython;

//Dependencies for the target
vtkParallelTCL_LIB_DEPENDS:STATIC=vtkParallel;vtkRenderingTCL;vtkIOTCL;

//Dependencies for the target
vtkParallel_LIB_DEPENDS:STATIC=vtkRendering;vtkIO;/usr/lib/libmpi.so;/usr/lib/libmpi++.so;

//Dependencies for the target
vtkPatentedPython_LIB_DEPENDS:STATIC=vtkPatented;vtkGraphicsPython;vtkImagingPython;

//Dependencies for the target
vtkPatentedTCL_LIB_DEPENDS:STATIC=vtkPatented;vtkIOTCL;vtkGraphicsTCL;vtkImagingTCL;

//Dependencies for the target
vtkPatented_LIB_DEPENDS:STATIC=vtkGraphics;vtkImaging;vtkIO;

//Dependencies for the target
vtkRenderingPythonTkWidgets_LIB_DEPENDS:STATIC=vtkRendering;/usr/lib/libtk8.3.so;/usr/lib/libtcl8.3.so;m;

//Dependencies for the target
vtkRenderingPython_LIB_DEPENDS:STATIC=vtkRendering;vtkGraphicsPython;vtkImagingPython;

//Dependencies for the target
vtkRenderingTCL_LIB_DEPENDS:STATIC=vtkRendering;vtkGraphicsTCL;vtkImagingTCL;/usr/lib/libtk8.3.so;/usr/lib/libtcl8.3.so;m;

//Dependencies for the target
vtkRendering_LIB_DEPENDS:STATIC=vtkGraphics;vtkImaging;vtkIO;vtkftgl;vtkfreetype;vtkzlib;/usr/lib/libGL.so;/usr/X11R6/lib/libOSMesa.so;-lXt;-lSM;-lICE;-lSM;-lICE;-lSM;-lICE;/usr/X11R6/lib/libX11.so;/usr/X11R6/lib/libXext.so;/usr/X11R6/lib/libX11.so;/usr/X11R6/lib/libXext.so;/usr/X11R6/lib/libX11.so;/usr/X11R6/lib/libXext.so;

//Dependencies for target
vtkexpat_LIB_DEPENDS:STATIC=

//Dependencies for target
vtkfreetype_LIB_DEPENDS:STATIC=

//Dependencies for the target
vtkftgl_LIB_DEPENDS:STATIC=/usr/lib/libGL.so;vtkfreetype;

//Dependencies for target
vtkjpeg_LIB_DEPENDS:STATIC=

//Dependencies for the target
vtkpng_LIB_DEPENDS:STATIC=vtkzlib;

//Dependencies for the target
vtktiff_LIB_DEPENDS:STATIC=vtkzlib;vtkjpeg;

//Dependencies for target
vtkzlib_LIB_DEPENDS:STATIC=

-----------------------------------------------------------------------------------









From listboss at gmail.com  Tue Oct 12 08:35:53 2004
From: listboss at gmail.com (listboss)
Date: Tue, 12 Oct 2004 08:35:53 -0400
Subject: [vtkusers] Howto just build vtkIO.dll
Message-ID: <1a1893c04101205357a0d3cb3@mail.gmail.com>

Hi

I have added a new function to vtkImageReader class and now I want to build it.
As most of you, I am using CMake and I can see the list of all
projects of VTK in Visual Studio.Net

If I want to create vtkIO.dll, I have to build the whole VTK which is
a lengthy process, but when I just right click on vtkIO project (not
the ALL_BUILD) and select "Build only vtkIO" it won't create the
vtkIO.dll but only the .lib files.

Could you please tell me how to do this ?
Thanks
Hamid


From chent at cs.queensu.ca  Tue Oct 12 10:14:46 2004
From: chent at cs.queensu.ca (Thomas Kuiran Chen)
Date: Tue, 12 Oct 2004 10:14:46 -0400
Subject: [vtkusers] Please Help: Problem to display 2D image in
	volumeusingvtkActor/vtkPlaneSource
Message-ID: <200410121414.i9CEEkiF024798@cs.queensu.ca>

Hi Andre,

In general, my solution is: 
vtkImageData -> vtkPolyData -> vtkPolyDataMapper -> vtkActor -> Set Transform -> visualization.

So in the first step you have to convert the 2D vtkImageData into vtkPolyData using vtkImageToPolyDataFilter:

	// vtkImageData to vtkPolyData
	vtkImageToPolyDataFilter *Image2PolyDataFilter = vtkImageToPolyDataFilter::New();
	Image2PolyDataFilter->SetInput( ImageReader->GetOutput() );

Then create the polydata mapper:

	// Image polydata mapper
	vtkPolyDataMapper *ImageInPolyDataMaper = vtkPolyDataMapper::New();
    ImageInPolyDataMaper->SetInput( Image2PolyDataFilter->GetOutput() );

Finally pass it to vtkActor:
	
	// Image Polydata Actor
	vtkActor *ImageInPolyDataActor = vtkActor::New();
    ImageInPolyDataActor->SetMapper(ImageInPolyDataMaper);

Now this is a very critical step, in which you have to set your homogeneous transform matrix:

	// Set the transform that transfer the image from its own frame to the volume frame.
	ImageInPolyDataActor->SetUserMatrix( TransformMatrix_Image2Volume );

You should be able to visualize the image inside the volume in this way if your transform is correct.

Hope it helps, and
Good Luck!

Cheers,

Thomas Kuiran Chen
2004-10-12 09:53:47

The Image Analysis Laboratory
School of Computing 
Queen's University 
Kingston, Ontario, Canada K7L 3N6 
Email: chent at cs.queensu.ca
Tel: (O) 1(613)533-2797


---------------------- Original Message ------------------------
From: Andr?? Huisman <andre at syand.nl>
To: Thomas - Kuiran Chen <chent at cs.queensu.ca>
Sent: 2004-10-11 09:30:34
Subject: Re: [vtkusers] Please Help: Problem to display 2D image in volumeusingvtkActor/vtkPlaneSource

Dear Thomas,

The application I am working on is in a complete different area: we are
visualizing prostate tissue cells, imaged using a Confocal Laser
Scanning Microscope. Mostly we have 3D datasets, but sometimes we want
to be able to visualize 2D data. We read tiff images, using ITK, because
we want to do more image processing, using ITK. At first we were even
not possible to import itk images into vtk. We worked around that by
converting the image first to a (vtk) structured point set.
We now use some transformation, but if we use it on 2D data (so, we use
just one image plane) it crashes with an access violation (because of
line 237 in vtkFiniteDifferenceGradientEstimator.cxx, where a z-step of
16000 is used). We already use the vtkPolyDataMapper as mapper. I'm not
sure we use the right transformations, although we found it online.
So we can only visualize 3D data at the moment.
If you can show me how you made it possible to show a 2D image, I would
be very grateful.

Thank you in advance, sincerely,

Andr?? Huisman

Thomas - Kuiran Chen wrote:

>Hi Andre,
>
>For that question, unfortunately, I didn't get any reply from the VTK group.  Seems like not too much people are interested in that particular appliation, :-).
>
>So I finally I got my own solution to it after trying numerious methods.  My solution was not using the vtkPlaneSource because the transform for it never got right.  Instead, I converted the 2D image from vtkImageData to the vtkPolyData and created another vtkActor specific for that image, then displayed it with the proper transform.  
>
>It worked fine for me.  I think vtkPlaneSource  is supposed (or designed) to be a ideal and elegant way to handle this, but somehow it has bugs.
>
>Are you also working on displaying a 2D ultrasound slice inside a ultrasound volume?
>
>Hope it helps and Good Luck!
>
>Thomas Kuiran Chen
>
>The Image Analysis Laboratory
>School of Computing
>Queen's University at Kingston
>Ontario, Canada K7M 1B6
>Email: chent at cs.queensu.ca
>Tel: (O) 1(613)533-2797
>
>
>---------------------- Original Message ------------------------
>From: Andr?_Huisman <andre at syand.nl>
>To: chent at cs.queensu.ca <chent at cs.queensu.ca>
>Sent: 2004-10-07 04:52:27
>Subject: re: [vtkusers] Please Help: Problem to display 2D image in volumeusing vtkActor/vtkPlaneSource
>
>Hi Thomas,
>
>On the internet I found a post of you with the above subject.  It is 
>exactly the same problem I am facing at the moment. Did you receive any 
>usefull comments on your post and did that help you to do the 
>visualisation? If so, please could you send me those solutions?
>
>Thank you in advance,
>
>Andr?Huisman
>Department of pathology, University Medical Center Utrecht
>The Netherlands
>
>--------------------------------------------------------------------
>			
>
>  
>


--------------------------------------------------------------------
			


From mathieu.malaterre at kitware.com  Tue Oct 12 10:24:24 2004
From: mathieu.malaterre at kitware.com (Mathieu Malaterre)
Date: Tue, 12 Oct 2004 10:24:24 -0400
Subject: [vtkusers] problem compiling  vtk-4.5.0  on fedora core 2
In-Reply-To: <10db010278.1027810db0@mail.bhu.ac.in>
References: <10db010278.1027810db0@mail.bhu.ac.in>
Message-ID: <416BE918.3040104@kitware.com>

Manoj,

	could you run the make command in verbose mode:

make VERBOSE=1

And send me the compilation line that fail.

Thanks
Mathieu

Manoj Kumar Singh wrote:
> 
> ----- Original Message -----
> From: Mathieu Malaterre <mathieu.malaterre at kitware.com>
> Date: Monday, October 11, 2004 6:27 pm
> Subject: Re: [vtkusers] problem compiling  vtk-4.5.0  on fedora core 2
> 
> 
>>Manoj,
>>
>>   Could you run these commands on your system:
>>
>>nm -D /usr/lib/libz.so | grep crc32
>>nm -D /usr/lib/libz.so | grep compress
>>
>>   For some reasons it looks like those symbols cannot be found 
>>in your 
>>zlib library.
>>
> 
> My system does not have /usr/lib/libz.so but it has
> /usr/lib/libz.so.1.2.1.1 and /usr/lib/libz.so.1 so i have run the
> command suggested by you on libz.so.1.2.1.1 and the output is:
> 004d6880  T  compress
> 004d6910  T  crc32
> should i create symbolic link /usr/lib/libz.so to /usr/lib/libz.so.1.2.1.1 ?
> 
>>   Anyway you can always turn zlib off from cmake interface to 
>>build the 
>>internal vtk zlib.
>>
> 
> I am newbie to vtk and cmake so how to do it. I have checked and found
> that libvtkzlib.so is being built and it has compress and crc32. 
> 
> 
>>HTH
>>Mathieu
>>
>>Manoj Kumar Singh wrote:
>>
>>>I am trying to compile vtk-4.5.0 (dated 6 oct,2004) on fedora 
>>
>>core 2 and
>>
>>>compilation fails with following error message:
>>>Building object file vtkTkAppInit.o...
>>>Building executable /usr/src/redhat/BUILD/VTK/bin/vtk...
>>>/usr/src/redhat/BUILD/VTK/lib/libvtkRendering.so: undefined 
>>
>>reference to
>>
>>>`crc32'/usr/src/redhat/BUILD/VTK/lib/libvtkRendering.so: undefined
>>>reference to `compress'
>>>collect2: ld returned 1 exit status
>>>make[3]: *** [/usr/src/redhat/BUILD/VTK/bin/vtk] Error 1
>>>make[2]: *** [default_target] Error 2
>>>make[1]: *** [default_target_Wrapping_Tcl] Error 2
>>>make: *** [default_target] Error 2
>>>error: Bad exit status from /var/tmp/rpm-tmp.70179 (%build)
>>>
>>>The compilation is successful till the libraries are built. The 
>>
>>problem> starts when wrappers are built. What is going wrong? Any 
>>help in this is
>>
>>>appreciated. Thanks in advance
>>> Manoj
>>>
>>>_______________________________________________
>>>This is the private VTK discussion list. 
>>>Please keep messages on-topic. Check the FAQ at: <" 
>>
>>target="l">http://public.kitware.com/cgi-bin/vtkfaq>
>>
>>>Follow this link to subscribe/unsubscribe:
>>>http://www.vtk.org/mailman/listinfo/vtkusers
>>>
>>
>>
>>
>>
> 
> 





From alletto at dei.unipd.it  Tue Oct 12 10:38:48 2004
From: alletto at dei.unipd.it (alletto at dei.unipd.it)
Date: Tue, 12 Oct 2004 16:38:48 +0200
Subject: [vtkusers] vtkPolyDataWriter
Message-ID: <1097591928.416bec78d203b@mail.dei.unipd.it>

Hi all vtkusers,

I tried to modify an actor  (a simple cube) translating and rotating it. I want 
to keep this information into a file (.vtk) that I write by vtkPolyDataWriter 
class, but I can't manage to do it.
I can't save the changes of the actor, and the file contains always the same 
cube...

Can someone help me?

Thank you in advance for your help.

Michele Alletto



-------------------------------------------------
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From brad.king at kitware.com  Tue Oct 12 12:13:51 2004
From: brad.king at kitware.com (Brad King)
Date: Tue, 12 Oct 2004 12:13:51 -0400
Subject: [vtkusers] Howto just build vtkIO.dll
In-Reply-To: <1a1893c04101205357a0d3cb3@mail.gmail.com>
References: <1a1893c04101205357a0d3cb3@mail.gmail.com>
Message-ID: <416C02BF.3070407@kitware.com>

listboss wrote:
> If I want to create vtkIO.dll, I have to build the whole VTK which is
> a lengthy process, but when I just right click on vtkIO project (not
> the ALL_BUILD) and select "Build only vtkIO" it won't create the
> vtkIO.dll but only the .lib files.
> 
> Could you please tell me how to do this ?

If you want a DLL you have to turn on BUILD_SHARED_LIBS in CMakeSetup to 
enable the building of shared libraries.

-Brad



From mlederer at foster-miller.com  Tue Oct 12 16:55:15 2004
From: mlederer at foster-miller.com (Lederer, Maitland)
Date: Tue, 12 Oct 2004 16:55:15 -0400
Subject: [vtkusers] question about IsTypeOf
Message-ID: <948A5EDF684ECD4A94C5120EABD66CA903549EFD@b1srvmail.foster-miller.com>

Hey everyone-

I'm using a vtkPropPicker, and I'd like to use IsTypeOf to determine
whether the picked prop is of type vtkProp3D.  Well, I was using the Tcl
interactor to determine what all was in my PropCollection and typed in
the following:

> sliceAct10 IsTypeOf "vtkProp"

To which I got the response 0.  I found this rather odd, as
vtkPropPicker seems to be picking this vtkOpenGLImageActor just fine.
So I tried a few other things, only to discover that 

> sliceAct10 IsTypeOf "vtkObject"

Also yields 0, and the only thing that sliceAct10 (or anything else in
my world) seems to be is a vtkObjectBase.  Has anybody else had this
problem?  Am I doing something wrong here?

Thanks,
-M

**************************
M. Maitland Lederer
Staff Engineer 
Foster-Miller, Inc.
(781)684-4618




From chongkm at cet.st.com.sg  Tue Oct 12 20:44:43 2004
From: chongkm at cet.st.com.sg (Chong Kwan Meng)
Date: Wed, 13 Oct 2004 08:44:43 +0800
Subject: [vtkusers] question about IsTypeOf
References: <948A5EDF684ECD4A94C5120EABD66CA903549EFD@b1srvmail.foster-miller.com>
Message-ID: <002801c4b0bd$d4bc8a50$2115420a@chongkm>

Hello,

Would like to know which version of vtk supports Microsoft .Net platform?

Regards,

Chong, Kwan Meng



From sscomp2004 at yahoo.com.au  Tue Oct 12 22:11:00 2004
From: sscomp2004 at yahoo.com.au (s comp)
Date: Wed, 13 Oct 2004 12:11:00 +1000 (EST)
Subject: [vtkusers] How to edit/operate on point and cell atributes in vtk?
Message-ID: <20041013021100.76711.qmail@web61104.mail.yahoo.com>

Hi all,
 
How do I edit/operate on  point and cell atributes of grids from within vtk? Can this be done through tcl or would I have to use C++?
 
Thanks,
 
Sonam



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From brad.king at kitware.com  Wed Oct 13 07:08:28 2004
From: brad.king at kitware.com (Brad King)
Date: Wed, 13 Oct 2004 07:08:28 -0400
Subject: [vtkusers] installing vtk cvs version. tcl works, cpp does not!
In-Reply-To: <1097581464.2269.11.camel@localhost.localdomain>
References: <1097581464.2269.11.camel@localhost.localdomain>
Message-ID: <416D0CAC.80304@kitware.com>

Brian Lading wrote:
> Hello there! 
> 
> I have just installed the cvs version of VTK (a few days old).
> Everything compiles and 'makes' ok. But when I do a testing of the
> examples, eg Medical1.xxx I have no problems with the tcl and the python
> scripts BUT the cpp programs all crashes with a segmentation fault! 
> 
> The cpp programs compiles and links, and it is possible to instantiate
> objects, but its NOT possible to use the objects!, eg for Medical1.cxx:
> 
>   vtkRenderer *aRenderer = vtkRenderer::New();
>   vtkRenderWindow *renWin = vtkRenderWindow::New();
>   renWin->AddRenderer(aRenderer);
>   vtkRenderWindowInteractor *iren = vtkRenderWindowInteractor::New();
>   iren->SetRenderWindow(renWin);
>  
>   vtkVolume16Reader *v16 = vtkVolume16Reader::New();
> /* until this point everything is ok! */
>   v16->SetDataDimensions (64,64);
> --- > Segmentation fault

I cannot duplicate this problem with a CVS version from Monday. 
However, I did have to modify the example to get it to compile because 
the CVS version is undergoing heavy changes right now.  I suggest you 
checkout the "VTK-4-4" branch and use that until the next release.

-Brad


From normand at lina.univ-nantes.fr  Wed Oct 13 08:32:00 2004
From: normand at lina.univ-nantes.fr (Jean-Marie Normand)
Date: Wed, 13 Oct 2004 14:32:00 +0200
Subject: [vtkusers] Re: Re: newbie question : vtkPlanes to represent a cube
In-Reply-To: <ckes9m$qss$1@sea.gmane.org>
References: <1097239132.11002.36.camel@pago.irin.sciences.univ-nantes.prive>
	<ck63fq$ske$1@sea.gmane.org>
	<1097501001.1898.24.camel@pago.irin.sciences.univ-nantes.prive>
	<ckes9m$qss$1@sea.gmane.org>
Message-ID: <1097670720.30140.173.camel@pago.irin.sciences.univ-nantes.prive>

Hi Goodwin!
And thanks for your help!

With your advices and the code source you provided now my boolean
operations are worlking quite well on my ImplicitCubes which are formed
using vtkPlanes.

But I still have problems to use vtkImplicitDataSet, in fact I don't
know how can I give a set of scalars to it. Do I need to parse all the
vertices from the vtkCubeSource and give them a scalar value?

For the moment I just do this :
vtkCubeSource *cubeS = vtkCubeSource::New();
vtkImplicitDataSet *ImplDS = vtkImplicitDataSet::New();
ImplDS->SetData((vtkDataSet*)(cube->GetOutput()));

But I don't know which value I have to give and to what.


In fact my problem is that I want to "cut" some cubes with planes and
then I'd like to retrieve the parts of the cubes that have been cut to
perform some boolean operations on them with others volumes.

So I try to use vtkClipPolyData and vtkCutter, with a vtkCubeSource and
a vtkPlane as ClipFunction,  but the first one returned a part of the
cube which was not closed (mainly a kind of pyramid without its base)
while the second one returns me exactly the part of the cube that is
missing to close (i.e. the part of the plane which was contained in the
original cube).

I don't know which technique I should use but the one based on the
ImplicitBoolean seems to work but produces volumes with ragged edges,
many polygons and seems CPU consuming while the technique based on
Clipping or cutting seems fast and produces simple (in terms of
polygons) meshes but that are opened.

If someone could enlighten me on the use of those techniques, I'd thank
him (her) a lot!

Thanks in advance


Jim


Le lun 11/10/2004 ? 23:00, Goodwin Lawlor a ?crit :
> Hi Jim,
> 
> > ERROR: In /home/jim/VTK/VTK/Filtering/vtkImplicitDataSet.cxx, line 78
> > vtkImplicitDataSet (0x829ae88): Can't evaluate dataset!
> 
> This filter needs the input to have a set a scalars, presumably representing
> a distance function.
> 
> 
> > But if I don't try to display the actor, I
> > don't get any error (which may be normal since I don't yet fully
> > understand how VTK works).
> 
> That's because the pipeline hasn't been asked to execute by the renderer.
> 
> I had another look at the first method you tried using vtkPlanes... There is
> some unusual behavior here that I dont have time to go through but you can
> play with this code... contour values of -0.75 work but values >-0.75 crash
> the contour filter. Looking at the input data to the contour as an image is
> looks like vtkPlanes has trouble evaluating the function where it is
> equidistant from 3 planes. I am not sure you had the point values correct
> either:
> 
> package require vtk
> 
> vtkPoints points
>     points SetNumberOfPoints 6
>     points SetPoint 0 1 0 0
>     points SetPoint 1 -1 0 0
>     points SetPoint 2 0 1 0
>     points SetPoint 3 0 -1 0
>     points SetPoint 4 0 0 1
>     points SetPoint 5 0 0 -1
> vtkFloatArray norms
>     norms SetNumberOfComponents 3
>     norms SetNumberOfTuples 6
>     norms SetTuple3 0 1 0 0
>     norms SetTuple3 1 -1 0 0
>     norms SetTuple3 2 0 1 0
>     norms SetTuple3 3 0 -1 0
>     norms SetTuple3 4 0 0 1
>     norms SetTuple3 5 0 0 -1
> 
> vtkPlanes planes
>     planes SetPoints points
>     planes SetNormals norms
> 
> vtkSampleFunction sample
>     sample SetImplicitFunction planes
>     sample SetModelBounds 2 -2 2 -2 2 -2
>     sample SetSampleDimensions 40 40 40
>     sample Update
> 
> vtkImageViewer viewer
>     viewer SetInput [sample GetOutput]
>     viewer SetColorWindow 2
>     viewer SetColorLevel 0
>     viewer SetZSlice 2
>     viewer Render
> 
> scale .s -command cb
> pack .s
> 
> proc cb {var} {
>     viewer SetZSlice $var
>     viewer Render
> }
> 
> vtkContourFilter contour
>     contour SetInput [sample GetOutput]
>     contour SetValue 0 -0.75
> vtkPolyDataMapper mapper
>     mapper SetInput [contour GetOutput]
> vtkActor actor
>     actor SetMapper mapper
>     [actor GetProperty] SetRepresentationToWireframe
> vtkRenderer ren
>     ren AddActor actor
> vtkRenderWindow renwin
>     renwin AddRenderer ren
> vtkRenderWindowInteractor iren
>     iren SetRenderWindow renwin
>     iren AddObserver UserEvent {console show}
>     iren Initialize
> 
> 
> 
> _______________________________________________
> This is the private VTK discussion list. 
> Please keep messages on-topic. Check the FAQ at: <http://public.kitware.com/cgi-bin/vtkfaq>
> Follow this link to subscribe/unsubscribe:
> http://www.vtk.org/mailman/listinfo/vtkusers



From lucapl at rc.unesp.br  Wed Oct 13 08:39:36 2004
From: lucapl at rc.unesp.br (Luca Pallozzi Lavorante)
Date: Wed, 13 Oct 2004 09:39:36 -0300
Subject: [vtkusers] vtkPolyDataWriter
In-Reply-To: <1097591928.416bec78d203b@mail.dei.unipd.it>
References: <1097591928.416bec78d203b@mail.dei.unipd.it>
Message-ID: <416D2208.2050901@rc.unesp.br>

alletto at dei.unipd.it wrote:

>Hi all vtkusers,
>
>I tried to modify an actor  (a simple cube) translating and rotating it. I want 
>to keep this information into a file (.vtk) that I write by vtkPolyDataWriter 
>class, but I can't manage to do it.
>I can't save the changes of the actor, and the file contains always the same 
>cube...
>
>Can someone help me?
>
>Thank you in advance for your help.
>
>Michele Alletto
>
>
>
>-------------------------------------------------
>This mail sent through IMP: http://horde.org/imp/
>_______________________________________________
>This is the private VTK discussion list. 
>Please keep messages on-topic. Check the FAQ at: <http://public.kitware.com/cgi-bin/vtkfaq>
>Follow this link to subscribe/unsubscribe:
>http://www.vtk.org/mailman/listinfo/vtkusers
>
>  
>
Hi Michele,

you have to modify the geometry of your source object via the following 
pipeline:

vtkCubeSource
         |
 vtkTransformPolyDataFilter-vtkTransform
        |
 vtkPolyDataWriter

You will define translations and rotations using proper methods from the 
vtkTransform class. See vtkTransformPolyDataFilter and vtkTransform?s 
documentation.
The modifications you performed at the actor level didn?t affect its 
geometry in the pipeline. Therefore, when you tried to save it with 
vtkPolyDataWriter the object was not modified.


Hope this help

       Luca



From m.audette at aist.go.jp  Wed Oct 13 09:50:06 2004
From: m.audette at aist.go.jp (Michel Audette)
Date: Wed, 13 Oct 2004 22:50:06 +0900
Subject: [vtkusers] getting reasonable results from
	vtkPolyDataConnectivityFilter 
Message-ID: <001401c4b12b$8c79a930$33751d96@surgsim2>

Hi everyone,

I'm using vtkPolyDataConnectivityFilter, with
SetExtractionModeToAllRegions(), and the number of extracted regions seems
quite high to me. For a brain surface, I'm expecting more or less one
connected surface, but I'm getting 200 regions. Is this the right function
to use to obtain the number of connected vtkPolyData surfaces? Is there a
parameter I should be setting, or a better function to use?

Cheers,

Michel

Michel Audette, Ph.D.,
Research Fellow, Surgical Simulation,
Surgical Assist Technology Group,
AIST,
Namiki 1-2,
Tsukuba, Japan,
305-8564.
--------------------------------------------------------
"If you think you can do it, you're right.
 If you think you can't do it, you're still right."
- Henry Ford



From dgobbi at imaging.robarts.ca  Wed Oct 13 09:48:36 2004
From: dgobbi at imaging.robarts.ca (David Gobbi)
Date: Wed, 13 Oct 2004 09:48:36 -0400 (EDT)
Subject: [vtkusers] getting reasonable results from
	vtkPolyDataConnectivityFilter
In-Reply-To: <001401c4b12b$8c79a930$33751d96@surgsim2>
Message-ID: <Pine.GSO.4.44.0410130946310.19801-100000@crater.irus.robarts.ca>

Hi Michel,

Try passing the data through vtkCleanPolyData first, before passing
it to vtkPolyDataConnectivityFilter.  This will remove degenerate points
that are foiling the connectivity testing.

 - David


On Wed, 13 Oct 2004, Michel Audette wrote:

> Hi everyone,
>
> I'm using vtkPolyDataConnectivityFilter, with
> SetExtractionModeToAllRegions(), and the number of extracted regions seems
> quite high to me. For a brain surface, I'm expecting more or less one
> connected surface, but I'm getting 200 regions. Is this the right function
> to use to obtain the number of connected vtkPolyData surfaces? Is there a
> parameter I should be setting, or a better function to use?
>
> Cheers,
>
> Michel
>
> Michel Audette, Ph.D.,
> Research Fellow, Surgical Simulation,
> Surgical Assist Technology Group,
> AIST,
> Namiki 1-2,
> Tsukuba, Japan,
> 305-8564.
> --------------------------------------------------------
> "If you think you can do it, you're right.
>  If you think you can't do it, you're still right."
> - Henry Ford
>
> _______________________________________________
> This is the private VTK discussion list.
> Please keep messages on-topic. Check the FAQ at: <http://public.kitware.com/cgi-bin/vtkfaq>
> Follow this link to subscribe/unsubscribe:
> http://www.vtk.org/mailman/listinfo/vtkusers
>



From bryan.cole at teraview.com  Wed Oct 13 09:39:53 2004
From: bryan.cole at teraview.com (Bryan Cole)
Date: Wed, 13 Oct 2004 14:39:53 +0100
Subject: [vtkusers] Re: passing vtkDataArray to python/Numeric arrays
References: <1097228413.23513.9.camel@bryan.teraviewhq.local>
	<000201c4ad29$c36706f0$adf4fea9@bart>
Message-ID: <pan.2004.10.13.13.39.52.579814@teraview.com>


> 
> There's an array function: fromstring(string,typecode). I haven't used it
> myself but it looks like what you need.

But how do I get vtkDataArray as a binary string (to pass to
Numeric.fromstring())?

vtkDataArray::GetVoidPointer() returns a pointer in "SWIG" form to python,
i.e. as a python-string. fromstring() interprets this as a literal string
(instead of as a pointer in memory) as so gives the wrong result.

BC

> 



From listboss at gmail.com  Wed Oct 13 12:27:37 2004
From: listboss at gmail.com (listboss)
Date: Wed, 13 Oct 2004 12:27:37 -0400
Subject: [vtkusers] adding a member method to a vtk class
Message-ID: <1a1893c04101309271c18555c@mail.gmail.com>

Hi

I have added a member function to vtkImageReader class. This new
function needs methods which are available in myclass.cpp

To compile my modified vtkImageReader class, first I tried to add
myclass.cpp to the CMakeList.txt file located in IO folder, but the
linker complained about a missing instantiator !!! :(

I removed the file from CMakeList.txt and I opened VisualStudio .Net,
right clicked on IO and selected "Add New Class" and then I added
"myclass.cpp" to "IO".
It compiles fine but my question is "Is it right way of doing this ?"

Am I gonna see problems because how I am doing this, or it's just fine ?
How should I do this if I want to compile VTK under Linux ?

Thanks in advance
Hamid


From baghdadi at sickkids.ca  Wed Oct 13 12:48:14 2004
From: baghdadi at sickkids.ca (Leila Baghdadi)
Date: 13 Oct 2004 12:48:14 -0400
Subject: [vtkusers] adding a member method to a vtk class
In-Reply-To: <1a1893c04101309271c18555c@mail.gmail.com>
References: <1a1893c04101309271c18555c@mail.gmail.com>
Message-ID: <1097686094.1004.62.camel@mouse18.phenogenomics.ca>

Hi Hamid

you should try modifying CMakeList.txt if you are adding new classes,

I think it is better to make your methods available in the class itself!

try looking at the directory
VTK/Examples/Build/vtkLocal

you can place your class in the above directory, there is a
CMakeLists.txt file in the above directory which is good enough to get
you started,


HTH

Leila

On Wed, 2004-10-13 at 12:27, listboss wrote:
> Hi
> 
> I have added a member function to vtkImageReader class. This new
> function needs methods which are available in myclass.cpp
> 
> To compile my modified vtkImageReader class, first I tried to add
> myclass.cpp to the CMakeList.txt file located in IO folder, but the
> linker complained about a missing instantiator !!! :(
> 
> I removed the file from CMakeList.txt and I opened VisualStudio .Net,
> right clicked on IO and selected "Add New Class" and then I added
> "myclass.cpp" to "IO".
> It compiles fine but my question is "Is it right way of doing this ?"
> 
> Am I gonna see problems because how I am doing this, or it's just fine ?
> How should I do this if I want to compile VTK under Linux ?
> 
> Thanks in advance
> Hamid
> _______________________________________________
> This is the private VTK discussion list. 
> Please keep messages on-topic. Check the FAQ at: <http://public.kitware.com/cgi-bin/vtkfaq>
> Follow this link to subscribe/unsubscribe:
> http://www.vtk.org/mailman/listinfo/vtkusers



From listboss at gmail.com  Wed Oct 13 13:01:23 2004
From: listboss at gmail.com (listboss)
Date: Wed, 13 Oct 2004 13:01:23 -0400
Subject: [vtkusers] adding a member method to a vtk class
In-Reply-To: <1097686094.1004.62.camel@mouse18.phenogenomics.ca>
References: <1a1893c04101309271c18555c@mail.gmail.com>
	<1097686094.1004.62.camel@mouse18.phenogenomics.ca>
Message-ID: <1a1893c0410131001774bd6b7@mail.gmail.com>

Thanks Leila for the hints...

As I said, I am trying to avoid creating a complete new class and
introduce it to vtk.

Maybe it's better that I added my methods to vtkImageReader class
rather than keeping them in a seperate file/class.

I'll try your suggestions and keep the list posted about the outcome.

Thanks again
Hamid



On 13 Oct 2004 12:48:14 -0400, Leila Baghdadi <baghdadi at sickkids.ca> wrote:
> Hi Hamid
> 
> you should try modifying CMakeList.txt if you are adding new classes,
> 
> I think it is better to make your methods available in the class itself!
> 
> try looking at the directory
> VTK/Examples/Build/vtkLocal
> 
> you can place your class in the above directory, there is a
> CMakeLists.txt file in the above directory which is good enough to get
> you started,
> 
> HTH
> 
> Leila
> 
> 
> 
> On Wed, 2004-10-13 at 12:27, listboss wrote:
> > Hi
> >
> > I have added a member function to vtkImageReader class. This new
> > function needs methods which are available in myclass.cpp
> >
> > To compile my modified vtkImageReader class, first I tried to add
> > myclass.cpp to the CMakeList.txt file located in IO folder, but the
> > linker complained about a missing instantiator !!! :(
> >
> > I removed the file from CMakeList.txt and I opened VisualStudio .Net,
> > right clicked on IO and selected "Add New Class" and then I added
> > "myclass.cpp" to "IO".
> > It compiles fine but my question is "Is it right way of doing this ?"
> >
> > Am I gonna see problems because how I am doing this, or it's just fine ?
> > How should I do this if I want to compile VTK under Linux ?
> >
> > Thanks in advance
> > Hamid
> > _______________________________________________
> > This is the private VTK discussion list.
> > Please keep messages on-topic. Check the FAQ at: <http://public.kitware.com/cgi-bin/vtkfaq>
> > Follow this link to subscribe/unsubscribe:
> > http://www.vtk.org/mailman/listinfo/vtkusers
> 
>


From malcolm at geovision.co.za  Wed Oct 13 13:04:56 2004
From: malcolm at geovision.co.za (Malcolm Drummond)
Date: Wed, 13 Oct 2004 19:04:56 +0200
Subject: [vtkusers] Re: passing vtkDataArray to python/Numeric arrays
References: <1097228413.23513.9.camel@bryan.teraviewhq.local><000201c4ad29$c36706f0$adf4fea9@bart>
	<pan.2004.10.13.13.39.52.579814@teraview.com>
Message-ID: <000b01c4b146$db787c30$adf4fea9@bart>

You've got me there. The best I could do was a bit convoluted ...

import vtk
import struct
import array

# populate vtkDataArray
n = 10
da = vtk.vtkFloatArray()
da.SetNumberOfTuples(n)
for i in range(n):
 da.SetValue(i,float(i))

# make string
s = ''
s = s.join([struct.pack('f',da.GetValue(i)) for i in
range(da.GetNumberOfTuples())])

# now make array
a = array.array('f')
a.fromstring(s)

# check
print len(a), a

... but there must be a more direct way. Maybe one of the Python gurus can
show how.

Malcolm

----- Original Message -----
From: "Bryan Cole" <bryan.cole at teraview.com>
To: <vtkusers at public.kitware.com>
Sent: Wednesday, October 13, 2004 3:39 PM
Subject: [vtkusers] Re: passing vtkDataArray to python/Numeric arrays



>
> There's an array function: fromstring(string,typecode). I haven't used it
> myself but it looks like what you need.

But how do I get vtkDataArray as a binary string (to pass to
Numeric.fromstring())?

vtkDataArray::GetVoidPointer() returns a pointer in "SWIG" form to python,
i.e. as a python-string. fromstring() interprets this as a literal string
(instead of as a pointer in memory) as so gives the wrong result.

BC

>

_______________________________________________
This is the private VTK discussion list.
Please keep messages on-topic. Check the FAQ at:
<http://public.kitware.com/cgi-bin/vtkfaq>
Follow this link to subscribe/unsubscribe:
http://www.vtk.org/mailman/listinfo/vtkusers



From mathieu.malaterre at kitware.com  Wed Oct 13 13:25:31 2004
From: mathieu.malaterre at kitware.com (Mathieu Malaterre)
Date: Wed, 13 Oct 2004 13:25:31 -0400
Subject: [vtkusers] timings for vtkImageReader2
In-Reply-To: <001b01c4ad7d$c322c6d0$0300a8c0@kerekeslaptop>
References: <001b01c4ad7d$c322c6d0$0300a8c0@kerekeslaptop>
Message-ID: <416D650B.4090001@kitware.com>

Kate,

	Are you sure your customer has as little memory as you do ? If not the 
problem desepear.

	Since AMIRA is a closed source software it is difficult to know what 
they are doing. Are you sure they are loading the *whole* data, they 
could do some striding to remove part which won't need to be displayed.

	Another thing you could do, is compress the raw data(*). then in your 
program read it, uncompress it and use. Since the IO is a slow part in 
the process you should be able to save some time depending on how good 
the compression was.

HTH,
Mathieu

#include "vtkImageNoiseSource.h"
#include "vtkImageData.h"
#include "vtkImageCast.h"
#include "vtkXMLImageDataWriter.h"
#include "vtkXMLImageDataReader.h"

void gen()
{
   vtkImageNoiseSource *noise = vtkImageNoiseSource::New();
   noise->SetWholeExtent(0,511,0,511,0,511);
   noise->SetMinimum(0.0);
   noise->SetMaximum(1.0);
   noise->ReleaseDataFlagOff();
   noise->Update();

//  noise->GetOutput()->Print( cout );

   vtkImageCast *cast = vtkImageCast::New();
   cast->SetInput( noise->GetOutput() );
   cast->SetOutputScalarTypeToUnsignedShort ();

   vtkXMLImageDataWriter *writer = vtkXMLImageDataWriter::New();
   writer->SetInput( cast->GetOutput() );
   writer->SetFileName( "bench.vti" );
   writer->Write();

   noise->Delete();
   cast->Delete();
   writer->Delete();

}

int main()
{
   //gen();

   vtkXMLImageDataReader *reader = vtkXMLImageDataReader::New();
   reader->SetFileName( "bench.vti" );
   reader->Update();

//  reader->GetOutput()->Print ( cout );

   reader->Delete();

   return 0;
}

Kate Kerekes wrote:
> Thank you to all for the comments.  
> 
> 1.  I am developing this app for windows because the final user will be
> using windows--although I much prefer linux :)
> 
> 2.  I understand that I don't have a lot of memory to run such a large
> dataset through, but as I said in an earlier message I have read the same
> dataset with AMIRA, and it is significantly faster (sorry cannot remember
> exact time, but if you look back through the list you can find it)  So why
> is AMIRA faster?  I suspect that AMIRA takes advantage of memory mapping in
> windows--although it is hard to tell because it is a commercial app and does
> not provide source code.  Is there any way to do this with vtk or a vtk
> class that already does this?
> 
> kate
> 
> -----Original Message-----
> From: Sean McInerney [mailto:seanm at nmr.mgh.harvard.edu] 
> Sent: Friday, October 08, 2004 1:15 PM
> To: Mathieu Malaterre
> Cc: Budd Hirons; vtk-users; kerekes at fastmail.fm
> Subject: Re: [vtkusers] timings for vtkImageReader2
> 
> Hi Kate,
> 
>    Again I'll second Mathieu. You have far too little memory to be 
> handling that much data. In memory your data alone occupies 268Mb before 
> you even do anything to it. The memory occupied by your application and 
> the VTK libraries that it links in are also significant ... so your 
> application and data may be occupying around 350Mb in memory! ... and 
> that is a conservative estimate.
> 
>    Since Windows XP is not known for being particularly lightweight, you 
> are certainly causing a whole lot of its processes to be written out to 
> swap. This massive slowdown is even compounded if the swap space is on 
> the same disk from which you are reading.
> 
>    Using Linux will certainly improve your quality of life, but I think 
> investing in, at least, another 512Mb of RAM is compulsory. I used to 
> use 1Gb of RAM as standard for any machine expected to do any serious 
> imaging work. With the advent of higher field scanners with increased 
> resolutions and considering the relatively low price of RAM, I would 
> suggest using 2Gb if possible. That will give you the room you need to 
> support pipeline operations on your data once it is read in.
> 
> -Sean
> 
> Mathieu Malaterre wrote:
> 
>>Budd,
>>
>>    512x512x512x2 = 268,435,456 so I don't see any problem with a 3s 
>>reading time. I admit a have 1gig of memory so there is very few chance 
>>I start swapping. Also to be honest the first time I run the c++ code it 
>>take 8s, the second time it takes 3s
>>
>>$ time ./bench                                                 ./bench  
>>1.05s user 1.97s system 99% cpu 3.021 total
>>
>>
>>    My guess is:
>>- you are swapping a lot (if you didn't ran defrag in a while swapping 
>>would be very slow).
>>- Close any other apps you are using to avoid having to swap.
>>- Use linux :P
>>
>>Mathieu
>>Ps: sys info:
>>
>>$ cat /proc/cpuinfo
>>processor       : 0
>>vendor_id       : GenuineIntel
>>cpu family      : 15
>>model           : 2
>>model name      : Intel(R) Pentium(R) 4 CPU 2.80GHz
>>stepping        : 9
>>cpu MHz         : 2793.067
>>cache size      : 512 KB
>>physical id     : 0
>>siblings        : 2
>>fdiv_bug        : no
>>hlt_bug         : no
>>f00f_bug        : no
>>coma_bug        : no
>>fpu             : yes
>>fpu_exception   : yes
>>cpuid level     : 2
>>wp              : yes
>>flags           : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge 
>>mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe cid
>>runqueue        : 0
>>
>>bogomips        : 5570.56
>>
>>processor       : 1
>>vendor_id       : GenuineIntel
>>cpu family      : 15
>>model           : 2
>>model name      : Intel(R) Pentium(R) 4 CPU 2.80GHz
>>stepping        : 9
>>cpu MHz         : 2793.067
>>cache size      : 512 KB
>>physical id     : 0
>>siblings        : 2
>>fdiv_bug        : no
>>hlt_bug         : no
>>f00f_bug        : no
>>coma_bug        : no
>>fpu             : yes
>>fpu_exception   : yes
>>cpuid level     : 2
>>wp              : yes
>>flags           : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge 
>>mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe cid
>>runqueue        : 0
>>
>>bogomips        : 5583.66
>>
>>
>>/sbin/hdparm -t /dev/sda2
>>
>>/dev/sda2:
>> Timing buffered disk reads:  160 MB in  3.00 seconds =  53.33 MB/sec
>>
>>
>>
>>Budd Hirons wrote:
>>
>>
>>>3 seconds! you have to let me in on your secret!
>>>
>>>UltraATA maximum transfer in the DMA mode 5 is only 100MB/s, so I 
>>>guess it is possible, but unlikely, to read this in 3 seconds.  I ran 
>>>this exercise on two machines, compiled from C++.
>>>
>>>machine 1 (p4,ultraATA drive on board,DMA,DDR ram) - 18s read
>>>machine 2 (dual Xeon,SCSI on PCI adapter,no DMA,pc133 ram) - 66s read
>>>
>>>We regularly deal with volumes that exceed this one in size, and range 
>>>to 800 megs on disk.  Load times to get very large chunks of data into 
>>>can ram vary wildly, but it should not be expected to happen 
>>>instantaneously.  45 seconds for larger datasets would not be off the 
>>>mark in release on random equipment and with other processes likely 
>>>running.
>>>
>>>Cheers,
>>>Budd.
>>>
>>>
>>>
>>>Kate Kerekes wrote:
>>>
>>>
>>>>Hello again,
>>>>
>>>>I apologize for the length of this message.  I am still having 
>>>>problems with
>>>>the time it takes vtkImageReader2 to read 268 MB of data (a series of 
>>>>512
>>>>files with 512x512 shorts each.)  I ran the following test program (from
>>>>Mathieu Malaterre  translated to tcl by me) to see how long a read 
>>>>takes:
>>>>
>>>>#!/bin/sh
>>>>load vtkCommonTCL.dll
>>>>load vtkFilteringTCL.dll
>>>>load vtkGraphicsTCL.dll
>>>>load vtkIOTCL.dll
>>>>load vtkImagingTCL.dll
>>>>load vtkRenderingTCL.dll
>>>>load vtkHybridTCL.dll
>>>>source Interactor.tcl
>>>>source bindings-rw.tcl
>>>>source bindings-iw.tcl
>>>>source bindings.tcl
>>>>source setget.tcl
>>>> 
>>>>console show
>>>>
>>>>set createImage yes
>>>>
>>>>if {$createImage=="yes"} {
>>>>vtkImageNoiseSource noise
>>>>   noise SetWholeExtent 0 511 0 511 0 511
>>>>   noise SetMinimum 0.0
>>>>   noise SetMaximum 1.0
>>>>   [noise GetOutput] ReleaseDataFlagOn
>>>>   puts "about to update vtkImageNoiseSource"
>>>>   noise Update
>>>>   puts "finished updating vtkImageNoiseSource"
>>>> 
>>>>   vtkImageCast cast
>>>>   cast SetInput [noise GetOutput]
>>>>   cast SetOutputScalarTypeToUnsignedShort     vtkImageWriter writer
>>>>   writer SetInput [cast GetOutput]
>>>>   writer SetFileDimensionality 3
>>>>   writer SetFileName "bench.img"
>>>>   puts "about to update writer"
>>>>   writer Write
>>>>   puts "finished updating writer"
>>>>}
>>>> 
>>>>   vtkImageReader2 reader
>>>>   [reader GetOutput] ReleaseDataFlagOn
>>>>   reader SetDataExtent 0 511 0 511 0 511
>>>>   reader SetDataScalarTypeToUnsignedShort
>>>>   reader SetDataByteOrderToLittleEndian
>>>>   reader SetFileName "bench.img"
>>>>
>>>>   puts "about to update reader"
>>>>   set time1 [clock clicks -milliseconds]
>>>>   reader Update
>>>>   set time2 [clock clicks -milliseconds]
>>>>   puts "finished updating reader"
>>>>   puts "reader update took [expr $time2-$time1] milliseconds"
>>>>
>>>>The read takes 15 seconds on my machine (Windows XP with service pack 
>>>>2, AMD
>>>>athlon 64 chipset 3000+, with 512 megs of memory).  I am reading data 
>>>>from
>>>>the IDE harddrive.  Mathieu's timing was 3 seconds.  This of course 
>>>>is not
>>>>the newest machine out there, but it is not that old either.
>>>>
>>>>Then when I try to read my series of slices, my machine takes 45 
>>>>seconds.
>>>>The only difference in reading the slice files and the bench.img 
>>>>created by
>>>>ImageNoiseSource is that the bench.img is all three dimensions in one 
>>>>file
>>>>(rather than a series of slices), and the bench.img file uses unsigned
>>>>shorts rather than shorts (but both are 2 bytes, right?).
>>>>
>>>>So here are my thoughts as to why the problem could be occurring--any
>>>>feedback would be appreciated:
>>>>1.  my computer is too slow--I don't think this is it
>>>>2.  the bench.img file only reads faster because it has just been 
>>>>written to
>>>>memory and is probably still in the cache and therefore takes less 
>>>>time to
>>>>access
>>>>3.  the fact that my slices are in series and 512 different files 
>>>>have to be
>>>>read is the slow down
>>>>4.  the code running in tcl is slower than code running in c (I can 
>>>>fix this
>>>>by calling a c function from tcl--but only if I think this is really the
>>>>problem)
>>>>5.  there is some other problem that I am unaware of--this is my 
>>>>worst fear
>>>>:(
>>>>
>>>>Please help!  All of the other feedback I have gotten before says 
>>>>that the
>>>>read should take no more than a few seconds.  45 seconds is way too 
>>>>long for
>>>>our customer and this is not even the largest filesize that will be 
>>>>used.
>>>>
>>>>Thanks,
>>>>Kate Kerekes
>>>>
>>>>
>>>>
>>>>_______________________________________________
>>>>This is the private VTK discussion list. Please keep messages 
>>>>on-topic. Check the FAQ at: <http://public.kitware.com/cgi-bin/vtkfaq>
>>>>Follow this link to subscribe/unsubscribe:
>>>>http://www.vtk.org/mailman/listinfo/vtkusers
>>>>
>>>
>>>_______________________________________________
>>>This is the private VTK discussion list. Please keep messages 
>>>on-topic. Check the FAQ at: <http://public.kitware.com/cgi-bin/vtkfaq>
>>>Follow this link to subscribe/unsubscribe:
>>>http://www.vtk.org/mailman/listinfo/vtkusers
>>>
>>
>>
>>
>>_______________________________________________
>>This is the private VTK discussion list. Please keep messages on-topic. 
>>Check the FAQ at: <http://public.kitware.com/cgi-bin/vtkfaq>
>>Follow this link to subscribe/unsubscribe:
>>http://www.vtk.org/mailman/listinfo/vtkusers
>>
> 
> 
> _______________________________________________
> This is the private VTK discussion list. 
> Please keep messages on-topic. Check the FAQ at: <http://public.kitware.com/cgi-bin/vtkfaq>
> Follow this link to subscribe/unsubscribe:
> http://www.vtk.org/mailman/listinfo/vtkusers
> 





From i.wegner at dkfz-heidelberg.de  Wed Oct 13 13:41:23 2004
From: i.wegner at dkfz-heidelberg.de (Ingmar Wegner)
Date: Wed, 13 Oct 2004 19:41:23 +0200
Subject: [vtkusers] Video in Background of 3D-Scene
Message-ID: <416D68C3.2000009@dkfz-heidelberg.de>

Hi,
I searched through the users-list and found some helpful tips on how to 
grab frames with vtkVideoSource (vtkWin32VideoSource).
But I need further information on how to declare the video as 
background, or show the video in background and to be able to draw 
OpenGL- objects in front of it.
3D-interaction isn't really needed, so I might as well use a 2D scene. 
But I need OpenGL to do some buffer calculations so a 3D window might be 
a better choice, right?

So far I use a vtkWin32VideoSource to grab the frames.
1.Is there a way to overcome the update-process, cause the video always 
needs to be updated?

Then I need to render the Video in background. I tried adding the actor 
as the first, but didn't succeed.
I tried the combination with a vtkOpenGLImageActor and a vtkActor2D. The 
vtkActor2D didn't show it in the background, and the vtkOpenGLImageActor 
did show the video as a texture on a plane which i could also interact 
with. An adjustment of the plane, which translates that plane, so it 
always shows the video as background would be possible, but quite dirty!
2. What to take and how to show a video in the background?

3. Then for the OpenGL- context? Is there a nice way to add OpenGL- 
calls at desired places? I need clipping and switching buffers. Or 
should I rather implement a new rendererclass derived from vtkRenderer 
or from vtkRenderWindow?

Thank you in advance,
Ingmar



From awalczak at cse.Buffalo.EDU  Wed Oct 13 17:02:12 2004
From: awalczak at cse.Buffalo.EDU (Alan M Walczak)
Date: Wed, 13 Oct 2004 17:02:12 -0400 (EDT)
Subject: [vtkusers] vtkTubeFilter with Multiple Scalars
Message-ID: <Pine.SOL.4.56.0410131550080.18597@pollux.cse.buffalo.edu>

Hi,
I am trying to use the vtkTubeFilter to represent blood vessels using a
set of 3D centerline coordinates of the vessel with each point along the
centerline having a measured size and a measured curvature.

The centerline is represented as poly data and the size and
curvature as scalar values.  Currently I am able to display the tube
filter with only a single scalar value, either size or curvature,
represented as either radius or the color of the tube at each point.  I
am wondering is it possible to use both scalar sets at the same time with
the tube filter, using the measured vessel size as the radius scalar
and the curvature of the vessel as the color scalar.

Please let me know if there is a way to do this, or if there are any other
possible solutions to this problem.

Thank you very much,
Alan Walczak


From a.maclean at cas.edu.au  Wed Oct 13 19:30:59 2004
From: a.maclean at cas.edu.au (Andrew Maclean)
Date: Thu, 14 Oct 2004 09:30:59 +1000
Subject: [vtkusers] adding a member method to a vtk class
In-Reply-To: <1a1893c0410131001774bd6b7@mail.gmail.com>
Message-ID: <200410132331.i9DNV5au026183@lorica.ucc.usyd.edu.au>


The best method is to derive from the class and add in your methods. Use
VTKLocal as the repository for your class if it is of general applicability
to other projects that you may be writing.

In this way if vtkImageReader changes, a simple recompilation of VTKLocal is
all that is necessary.

Works well for Windows and Linux. This also has the advantage that you can
write test routines and also put them into VTKLocal.



Andrew


 
-----Original Message-----
From: listboss [mailto:listboss at gmail.com] 
Sent: Thursday, 14 October 2004 03:01
To: baghdadi at phenogenomics.ca
Cc: vtkusers at vtk.org
Subject: Re: [vtkusers] adding a member method to a vtk class

Thanks Leila for the hints...

As I said, I am trying to avoid creating a complete new class and
introduce it to vtk.

Maybe it's better that I added my methods to vtkImageReader class
rather than keeping them in a seperate file/class.

I'll try your suggestions and keep the list posted about the outcome.

Thanks again
Hamid



On 13 Oct 2004 12:48:14 -0400, Leila Baghdadi <baghdadi at sickkids.ca> wrote:
> Hi Hamid
> 
> you should try modifying CMakeList.txt if you are adding new classes,
> 
> I think it is better to make your methods available in the class itself!
> 
> try looking at the directory
> VTK/Examples/Build/vtkLocal
> 
> you can place your class in the above directory, there is a
> CMakeLists.txt file in the above directory which is good enough to get
> you started,
> 
> HTH
> 
> Leila
> 
> 
> 
> On Wed, 2004-10-13 at 12:27, listboss wrote:
> > Hi
> >
> > I have added a member function to vtkImageReader class. This new
> > function needs methods which are available in myclass.cpp
> >
> > To compile my modified vtkImageReader class, first I tried to add
> > myclass.cpp to the CMakeList.txt file located in IO folder, but the
> > linker complained about a missing instantiator !!! :(
> >
> > I removed the file from CMakeList.txt and I opened VisualStudio .Net,
> > right clicked on IO and selected "Add New Class" and then I added
> > "myclass.cpp" to "IO".
> > It compiles fine but my question is "Is it right way of doing this ?"
> >
> > Am I gonna see problems because how I am doing this, or it's just fine ?
> > How should I do this if I want to compile VTK under Linux ?
> >
> > Thanks in advance
> > Hamid
> > _______________________________________________
> > This is the private VTK discussion list.
> > Please keep messages on-topic. Check the FAQ at:
<http://public.kitware.com/cgi-bin/vtkfaq>
> > Follow this link to subscribe/unsubscribe:
> > http://www.vtk.org/mailman/listinfo/vtkusers
> 
>





From prashanth.dumpuri at vanderbilt.edu  Wed Oct 13 15:29:07 2004
From: prashanth.dumpuri at vanderbilt.edu (Prashanth)
Date: Wed, 13 Oct 2004 19:29:07 +0000
Subject: [vtkusers] vtkMarchingCubes
In-Reply-To: <C84700357DE18243A3380B6BBF6DC54107CB59@mailbe03.mc.vanderbilt.edu>
References: <C84700357DE18243A3380B6BBF6DC54107CB59@mailbe03.mc.vanderbilt.edu>
Message-ID: <1097695747.2775.387.camel@snarltux>

All,
  I'm creating 2 isosurfaces from an image volume using
vtkMarchingCubes. The intensities are such that the 2 surfaces intersect
each other. This creates 3 'regions/zones' in the output polydata:
(i) Cells belonging entirely to isosurface#1
(ii) Cells belonging entirely to isosurface#2
(iii) Cells in the intersection region of isosurface#1 and isosurface#2.
Can I flag the cells in the output polydata based on the above zoning,
using vtkMarchingCubes? Or is there any other vtk filter that can do
this? 
Any help in this will be greatly appreciated.
Thanks,
Prashanth








From craig.scott at csiro.au  Wed Oct 13 21:51:50 2004
From: craig.scott at csiro.au (Craig N. Scott)
Date: Thu, 14 Oct 2004 11:51:50 +1000
Subject: [vtkusers] Glyphs: color by one scalar, scale by another
Message-ID: <1097718710.5485.7.camel@caulfield>

Hi all. Anyone know if it is possible to have the color and scaling of
vtkGlyph3D's controlled by *different* scalars? I need the "radius"
scalar to control the size of a sphere glyph, but I need each sphere
colored according to a different scalar, like "velocity".

I eventually need to do this with vectors instead of scalars too, but I
am assuming the solution to the above would be similar for vectors.

Any suggestions appreciated. Thanks in advance.

-- 
Dr Craig Scott, CSIRO (CMIS)
Melbourne, Australia

Computers are easy to reboot. Attitudes are much harder.


From zfjgo at 126.com  Wed Oct 13 23:00:35 2004
From: zfjgo at 126.com (=?gb2312?B?emZqZ28=?=)
Date: Thu, 14 Oct 2004 11:00:35 +0800 (CST)
Subject: [vtkusers] How to implement overridding the OnLeftButtonDown
Message-ID: <416DEBD3.000033.05220@m62.126.com>

hello,
I am a new vtkuser . Whenever I am overridding the
OnLeftButtonDown(ctrl,shift,X,Y) function . My Picking
function (CellPicking doesnt work )

The follow is a part of my VC++ code,I know it contain many errors.
Kindly reply urgently.Had better provide me with the entire corresponding VC++ code.Thaks a lot.
God bless you 




void vtkInteractorStyle::OnLeftButtonDown(int ctrl,int shift,int X,int Y)  
{
	
	if(ctrl==1&&shift==0)
{    vtkCellPicker *picker=vtkCellPicker::New();
     CWnd *pMainWnd=AfxGetApp()->m_pMainWnd;
	 CMainFrame *pMainFrame=(CMainFrame *)pMainWnd;
	 CMy3DReconstructionofBloodVesselView *pMyView=(CMy3DReconstructionofBloodVesselView *)pMainFrame->GetActiveView();
	 picker=(vtkCellPicker *)pMyView->Iren->GetPicker();
   	
    vtkInteractorStyle *interstyle=vtkInteractorStyle::New();
	pMyView->Iren->SetInteractorStyle(interstyle);
    pMyView->Iren->SetPicker(picker);
    vtkIdType cell_id=picker->GetCellId();
	if(cell_id<0)
		AfxMessageBox("Sorry,you have not selected any point.");
	else
	{   
		float *selPt;
		float *pickpos;
		int xp,yp,zp;

		selPt=picker->GetSelectionPoint();   
        cout<<"Screen location:"<<selPt[0]<<" "<<selPt[1]<<"\n";
		X=selPt[0];
		Y=selPt[1];
		pickpos = picker->GetPickPosition();
		cout<<"Point location:"<<pickpos[0]<<" "<<pickpos[1]<<" "<<pickpos[2]<<"\n";
	    xp=pickpos[0];
		yp=pickpos[1];
		zp=pickpos[2];
		
	  //picker->Pick();
   
    } 
}
}


-----------------------------------------------------------
???http://www.126.com??260M????????!
???????????????, ????????!

From listboss at gmail.com  Thu Oct 14 01:55:36 2004
From: listboss at gmail.com (listboss)
Date: Thu, 14 Oct 2004 01:55:36 -0400
Subject: [vtkusers] adding a member method to a vtk class
In-Reply-To: <200410132331.i9DNV5au026183@lorica.ucc.usyd.edu.au>
References: <1a1893c0410131001774bd6b7@mail.gmail.com>
	<200410132331.i9DNV5au026183@lorica.ucc.usyd.edu.au>
Message-ID: <1a1893c0410132255182cf1fd@mail.gmail.com>

Thanks Andrew,

For now I just copied my methods to vtkImageReader and modified the
headers to account for them.

But based on your and Leilda's repsonse, it seems that adding a new
class is wiser and more efficient way of doing this.

If I do this, i.e. derive a class or add a new one, how can I make
sure that it gets compiled to shared library (vtIO.dll under windows)
?

Thanks
Hamid


On Thu, 14 Oct 2004 09:30:59 +1000, Andrew Maclean <a.maclean at cas.edu.au> wrote:
> 
> The best method is to derive from the class and add in your methods. Use
> VTKLocal as the repository for your class if it is of general applicability
> to other projects that you may be writing.
> 
> In this way if vtkImageReader changes, a simple recompilation of VTKLocal is
> all that is necessary.
> 
> Works well for Windows and Linux. This also has the advantage that you can
> write test routines and also put them into VTKLocal.
> 
> 
> Andrew
> 
> 
> 
> 
> -----Original Message-----
> From: listboss [mailto:listboss at gmail.com]
> Sent: Thursday, 14 October 2004 03:01
> To: baghdadi at phenogenomics.ca
> Cc: vtkusers at vtk.org
> Subject: Re: [vtkusers] adding a member method to a vtk class
> 
> Thanks Leila for the hints...
> 
> As I said, I am trying to avoid creating a complete new class and
> introduce it to vtk.
> 
> Maybe it's better that I added my methods to vtkImageReader class
> rather than keeping them in a seperate file/class.
> 
> I'll try your suggestions and keep the list posted about the outcome.
> 
> Thanks again
> Hamid
> 
> On 13 Oct 2004 12:48:14 -0400, Leila Baghdadi <baghdadi at sickkids.ca> wrote:
> > Hi Hamid
> >
> > you should try modifying CMakeList.txt if you are adding new classes,
> >
> > I think it is better to make your methods available in the class itself!
> >
> > try looking at the directory
> > VTK/Examples/Build/vtkLocal
> >
> > you can place your class in the above directory, there is a
> > CMakeLists.txt file in the above directory which is good enough to get
> > you started,
> >
> > HTH
> >
> > Leila
> >
> >
> >
> > On Wed, 2004-10-13 at 12:27, listboss wrote:
> > > Hi
> > >
> > > I have added a member function to vtkImageReader class. This new
> > > function needs methods which are available in myclass.cpp
> > >
> > > To compile my modified vtkImageReader class, first I tried to add
> > > myclass.cpp to the CMakeList.txt file located in IO folder, but the
> > > linker complained about a missing instantiator !!! :(
> > >
> > > I removed the file from CMakeList.txt and I opened VisualStudio .Net,
> > > right clicked on IO and selected "Add New Class" and then I added
> > > "myclass.cpp" to "IO".
> > > It compiles fine but my question is "Is it right way of doing this ?"
> > >
> > > Am I gonna see problems because how I am doing this, or it's just fine ?
> > > How should I do this if I want to compile VTK under Linux ?
> > >
> > > Thanks in advance
> > > Hamid
> > > _______________________________________________
> > > This is the private VTK discussion list.
> > > Please keep messages on-topic. Check the FAQ at:
> <http://public.kitware.com/cgi-bin/vtkfaq>
> > > Follow this link to subscribe/unsubscribe:
> > > http://www.vtk.org/mailman/listinfo/vtkusers
> >
> >
> 
>


From I.deBoer at polytec.de  Thu Oct 14 02:59:34 2004
From: I.deBoer at polytec.de (de Boer Ingo)
Date: Thu, 14 Oct 2004 08:59:34 +0200
Subject: [vtkusers] How to implement overridding the OnLeftButtonDown
Message-ID: <1484AEC8AB498A4EB64D4A8137D23FD901450055@02polywbr.waldbronn.polytec.de>

Hi,

I think you are overwriting the wrong function.
The virtual function is

virtual void vtkInteractorStyleTrackballCamera::OnLeftButtonDown()

and not

virtual void vtkInteractorStyle::OnLeftButtonDown(int ctrl,int shift,int X,int Y)


greets
  Ingo

---
Dr.-Ing. Ingo H. de Boer

Polytec GmbH
Polytec-Platz 1-7, 76337 Waldbronn, Germany
phone: ++49 7243 604 106
fax  : ++49 7243 604 255

> hello,
> I am a new vtkuser . Whenever I am overridding the
> OnLeftButtonDown(ctrl,shift,X,Y) function . My Picking
> function (CellPicking doesnt work )
> 
> The follow is a part of my VC++ code,I know it contain many errors.
> Kindly reply urgently.Had better provide me with the entire 
> corresponding VC++ code.Thaks a lot.
> God bless you 


From lucapl at rc.unesp.br  Thu Oct 14 08:39:05 2004
From: lucapl at rc.unesp.br (Luca Pallozzi Lavorante)
Date: Thu, 14 Oct 2004 09:39:05 -0300
Subject: [vtkusers] Re: vtkMath::Jacobi in Tcl/Tk
In-Reply-To: <4166915A.8000107@rc.unesp.br>
References: <41659A12.7060906@rc.unesp.br> <ck62e6$pfh$1@sea.gmane.org>
	<4166915A.8000107@rc.unesp.br>
Message-ID: <416E7369.3060805@rc.unesp.br>

Hi Goodwin,
the HUME-LA package has worked perfectly! And it is not so slow as I 
expected.
Thank you very much for your help.

    Luca


Luca Pallozzi Lavorante wrote:

> Thanks for your help, Goodwin.
> I?ll investigate the site.
>
>   Luca
>
> Goodwin Lawlor wrote:
>
>> Hi Luca,
>>
>> vtkMath::Jacobi is not wrapped by the tcl wrappers so is not 
>> available...
>> the wrappers dont wrap methods with arrays as arguments. If you have 
>> the vtk
>> source and want to code some c++ you could write a Jacobi method that 
>> takes
>> a few vtkDataArray as arguments.
>>
>> Alternatively, you could code a jacobi algorithm in tcl... here's a 
>> linear
>> algebra package in tcl that you may get some ideas from
>> http://www.hume.com/la/
>>
>> hth
>>
>> Goodwin
>>
>> "Luca Pallozzi Lavorante" <lucapl at rc.unesp.br> wrote in message
>> news:41659A12.7060906 at rc.unesp.br...
>> Hi everybody,
>> I?d like to use the vtkMath?s Jacobi method in a Tcl/Tk script, but I
>> don?t know how to pass it the proper arguments.
>> In the documentation I?ve seen that in C++ I?d use the following:
>>
>>    vtkMath::Jacobi (  float **    /a/, float *    /w/, float **    /v/ )
>>
>> which I have successfully tested.
>> |
>> |But how to do it in Tcl/Tk?
>>
>> Thanks for any help.
>>
>>   Luca P. Lavorante
>> _______________________________________________
>> This is the private VTK discussion list.
>> Please keep messages on-topic. Check the FAQ at:
>> <http://public.kitware.com/cgi-bin/vtkfaq>
>> Follow this link to subscribe/unsubscribe:
>> http://www.vtk.org/mailman/listinfo/vtkusers
>>
>>
>>
>> _______________________________________________
>> This is the private VTK discussion list. Please keep messages 
>> on-topic. Check the FAQ at: <http://public.kitware.com/cgi-bin/vtkfaq>
>> Follow this link to subscribe/unsubscribe:
>> http://www.vtk.org/mailman/listinfo/vtkusers
>>
>>  
>>
>
> _______________________________________________
> This is the private VTK discussion list. Please keep messages 
> on-topic. Check the FAQ at: <http://public.kitware.com/cgi-bin/vtkfaq>
> Follow this link to subscribe/unsubscribe:
> http://www.vtk.org/mailman/listinfo/vtkusers
>



From petwa055 at student.liu.se  Thu Oct 14 10:25:42 2004
From: petwa055 at student.liu.se (Peter Wallin)
Date: Thu, 14 Oct 2004 16:25:42 +0200
Subject: [vtkusers] Mapping/Interpolate scalars in a suitable way on a Finite
 Element Mesh
Message-ID: <d5e035d5fa25.d5fa25d5e035@liu.se>

Hi there!

I have read in a mesh from a Finite Element solver, into VTK and now I want to map the stresses( point scalars) in a suitable way. The values are mapped correctly in the points(nodes) but the interior of the cell looks bad.

I have attached two pictures that shows the mapping. As seen in the images, the diagonal of the quads has a constant value i.e. the result is interpreted as two planar triangles. In a case with a quad element and with a non-planar response surface this is not a good representation. 


I want the mapping to be like a contour filter that clearly show the stresses around a certain point(s). Any suggestions? Is it possibly to somehow use the contourfilter on my scalars?




code extraction...


this->lut=vtkLookupTable::New();
this->lut->SetTableRange(this->filereader->GetOutput()->GetScalarRange());
this->lut->SetHueRange(0.667, 0.0);
this->lut->Build();


this->bar=vtkScalarBarActor::New();
this->bar->SetLookupTable(lut);
this->bar->SetNumberOfLabels(8);



this->pMapper=vtkPolyDataMapper::New();
this->pMapper->SetInput(gFilter->GetOutput());
this->pMapper->SetLookupTable(lut);
this->pMapper->SetScalarRange(this->filereader->GetOutput()->GetScalarRange());


// furhter down the pipeline..


this->actor->SetMapper(dataMapper);
//this->actor->GetProperty()->SetInterpolationToFlat();
this->actor->GetProperty()->SetInterpolationToGouraud();
this->actor->GetProperty()->SetAmbient(0.4);
this->actor->GetProperty()->SetDiffuse(0.2);
this->actor->GetProperty()->SetSpecular(0.2);
.....

Best Regards,

Peter


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From frank at qfin.net  Thu Oct 14 10:33:26 2004
From: frank at qfin.net (Frank Conradie)
Date: Thu, 14 Oct 2004 07:33:26 -0700
Subject: [vtkusers] Glyphs: color by one scalar, scale by another
References: <1097718710.5485.7.camel@caulfield>
Message-ID: <004701c4b1fa$c523e1e0$6401a8c0@brick>

Hi Craig

As far as I'm aware, you will have to use scalars for the one and vectors
for the other value, e.g:

glyphs.SetColorModeToColorByScalar()
glyphs.SetScaleModeToScaleByVector()

Frank Conradie
Rossland, BC, Canada


----- Original Message -----
From: "Craig N. Scott" <craig.scott at csiro.au>
To: <vtkusers at vtk.org>
Sent: Wednesday, October 13, 2004 6:51 PM
Subject: [vtkusers] Glyphs: color by one scalar, scale by another


> Hi all. Anyone know if it is possible to have the color and scaling of
> vtkGlyph3D's controlled by *different* scalars? I need the "radius"
> scalar to control the size of a sphere glyph, but I need each sphere
> colored according to a different scalar, like "velocity".
>
> I eventually need to do this with vectors instead of scalars too, but I
> am assuming the solution to the above would be similar for vectors.
>
> Any suggestions appreciated. Thanks in advance.
>
> --
> Dr Craig Scott, CSIRO (CMIS)
> Melbourne, Australia
>
> Computers are easy to reboot. Attitudes are much harder.
> _______________________________________________
> This is the private VTK discussion list.
> Please keep messages on-topic. Check the FAQ at:
<http://public.kitware.com/cgi-bin/vtkfaq>
> Follow this link to subscribe/unsubscribe:
> http://www.vtk.org/mailman/listinfo/vtkusers



From Davide.Armeni at TILAB.COM  Thu Oct 14 10:36:07 2004
From: Davide.Armeni at TILAB.COM (Armeni Davide)
Date: Thu, 14 Oct 2004 16:36:07 +0200
Subject: [vtkusers] really simple question HElp smoothing
Message-ID: <FFB2EEAB36E85340AE89377C1AD3CC931106A9@EXC01C.cselt.it>


Hi to everyone,
I've a simple question.
Can i applicate the smooth to a sphere that is done using cubes ??

Or i can use the vtkSmoothPolyDataFilter only for figure that are
done with triangles ??

In allegate the sphere.

Thanks to everyone for help


Gruppo Telecom Italia - Direzione e coordinamento di Telecom Italia S.p.A.

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From frank at qfin.net  Thu Oct 14 10:40:18 2004
From: frank at qfin.net (Frank Conradie)
Date: Thu, 14 Oct 2004 07:40:18 -0700
Subject: [vtkusers] Mapping/Interpolate scalars in a suitable way on a
	Finite Element Mesh
References: <d5e035d5fa25.d5fa25d5e035@liu.se>
Message-ID: <005801c4b1fb$bc390e60$6401a8c0@brick>

Hi Peter

I used a contour filter on an unstructured grid in Python as follows (my
scalars were temperatures):

        geom = vtk.vtkGeometryFilter()
        geom.SetInput(ugrid)

        contour = vtk.vtkBandedPolyDataContourFilter()
        contour.SetInput(geom.GetOutput())
        contour.GenerateValues(num_contours, Tmin, Tmax)
        contour.SetScalarModeToValue()

        mapper.SetInput(contour.GetOutput())
        mapper.SetScalarModeToUseCellData()
        ...

Frank Conradie
Rossland, BC, Canada


----- Original Message -----
From: "Peter Wallin" <petwa055 at student.liu.se>
To: <vtkusers at vtk.org>
Sent: Thursday, October 14, 2004 7:25 AM
Subject: [vtkusers] Mapping/Interpolate scalars in a suitable way on a
Finite Element Mesh


> Hi there!
>
> I have read in a mesh from a Finite Element solver, into VTK and now I
want to map the stresses( point scalars) in a suitable way. The values are
mapped correctly in the points(nodes) but the interior of the cell looks
bad.
>
> I have attached two pictures that shows the mapping. As seen in the
images, the diagonal of the quads has a constant value i.e. the result is
interpreted as two planar triangles. In a case with a quad element and with
a non-planar response surface this is not a good representation.
>
>
> I want the mapping to be like a contour filter that clearly show the
stresses around a certain point(s). Any suggestions? Is it possibly to
somehow use the contourfilter on my scalars?
>
>
>
>
> code extraction...
>
>
> this->lut=vtkLookupTable::New();
> this->lut->SetTableRange(this->filereader->GetOutput()->GetScalarRange());
> this->lut->SetHueRange(0.667, 0.0);
> this->lut->Build();
>
>
> this->bar=vtkScalarBarActor::New();
> this->bar->SetLookupTable(lut);
> this->bar->SetNumberOfLabels(8);
>
>
>
> this->pMapper=vtkPolyDataMapper::New();
> this->pMapper->SetInput(gFilter->GetOutput());
> this->pMapper->SetLookupTable(lut);
>
this->pMapper->SetScalarRange(this->filereader->GetOutput()->GetScalarRange(
));
>
>
> // furhter down the pipeline..
>
>
> this->actor->SetMapper(dataMapper);
> //this->actor->GetProperty()->SetInterpolationToFlat();
> this->actor->GetProperty()->SetInterpolationToGouraud();
> this->actor->GetProperty()->SetAmbient(0.4);
> this->actor->GetProperty()->SetDiffuse(0.2);
> this->actor->GetProperty()->SetSpecular(0.2);
> .....
>
> Best Regards,
>
> Peter
>
>
>


----------------------------------------------------------------------------
----


> _______________________________________________
> This is the private VTK discussion list.
> Please keep messages on-topic. Check the FAQ at:
<http://public.kitware.com/cgi-bin/vtkfaq>
> Follow this link to subscribe/unsubscribe:
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>



From j.robinson at kepler-systems.com  Thu Oct 14 10:40:53 2004
From: j.robinson at kepler-systems.com (James Robinson)
Date: Thu, 14 Oct 2004 15:40:53 +0100
Subject: [vtkusers] Colour map of FE
Message-ID: <20041014144109.C61632AECE@public.kitware.com>

Peter,

 

I haven't looked in detail at your code, but I have looked at your images. I
was wondering if it simply isn't that your mesh is coarse... What is the
error estimate of your solution? What element types are you using for the
analysis and what cell types are you using to represent these in VTK?

 

As far as I am aware (experts please step in here) VTK does linear
interpolation over triangular facets and doesn't do some kind of complex
interpolation over a patch of elements...

 

Regards,

 

Jim

 

James C Robinson, PhD, Chartered Engineer,

CEO,

Kepler Engineering Software Ltd.,

*     42 Rivergrove,

         Glanmire,

         Co. Cork,

         Eire

'     +353 21 4822028

         +353 87 2393010

6      +353 21 4822028

*    j.robinson at kepler-systems.com 

 

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From Steve.Joyce at sercoassurance.com  Thu Oct 14 10:50:29 2004
From: Steve.Joyce at sercoassurance.com (Steve Joyce)
Date: Thu, 14 Oct 2004 15:50:29 +0100
Subject: [vtkusers] Re: Mapping/Interpolate scalars in a suitable way on a
	Finite Element Mesh
Message-ID: <s16ea047.014@gwise1.risley.serco.com>

Hi,

The interpolation is by colour rather than by value by default.
However, I've obtained reasonable results using a
vtkBandedPolyDataContourFilter, which uses the value interpolation
defined for the cell type to create sub-cells of a given scalar value,
which are then coloured. The number of sub-cells depends on your node
values and the number of values you have specified for the filter. It
works like a normal contour filter, but fills in the contours with the
appropriate colour (hence the name). Note that point scalars get
converted to cell scalars by this filter. I've only tried this for
linear hexahedrons so far.

Steve

>>> vtkusers-request at vtk.org 14/10/2004 15:26:16 >>>

------------------------------

I have read in a mesh from a Finite Element solver, into VTK and now I
want to map the stresses( point scalars) in a suitable way. The values
are mapped correctly in the points(nodes) but the interior of the cell
looks bad.

I have attached two pictures that shows the mapping. As seen in the
images, the diagonal of the quads has a constant value i.e. the result
is interpreted as two planar triangles. In a case with a quad element
and with a non-planar response surface this is not a good
representation. 


I want the mapping to be like a contour filter that clearly show the
stresses around a certain point(s). Any suggestions? Is it possibly to
somehow use the contourfilter on my scalars?




code extraction...


this->lut=vtkLookupTable::New();
this->lut->SetTableRange(this->filereader->GetOutput()->GetScalarRange());
this->lut->SetHueRange(0.667, 0.0);
this->lut->Build();


this->bar=vtkScalarBarActor::New();
this->bar->SetLookupTable(lut);
this->bar->SetNumberOfLabels(8);



this->pMapper=vtkPolyDataMapper::New();
this->pMapper->SetInput(gFilter->GetOutput());
this->pMapper->SetLookupTable(lut);
this->pMapper->SetScalarRange(this->filereader->GetOutput()->GetScalarRange());


// furhter down the pipeline..


this->actor->SetMapper(dataMapper);
//this->actor->GetProperty()->SetInterpolationToFlat();
this->actor->GetProperty()->SetInterpolationToGouraud();
this->actor->GetProperty()->SetAmbient(0.4);
this->actor->GetProperty()->SetDiffuse(0.2);
this->actor->GetProperty()->SetSpecular(0.2);
.....

Best Regards,

Peter


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------------------------------

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From srodrigu at gbt.tfo.upm.es  Thu Oct 14 10:55:32 2004
From: srodrigu at gbt.tfo.upm.es (=?iso-8859-1?Q?Samuel_Rodr=EDguez_Bescos?=)
Date: Thu, 14 Oct 2004 16:55:32 +0200
Subject: [vtkusers] Complexity  of Delaunay 3D Implementation in VTK
References: <200410052217.14191.burlen@apollo.sr.unh.edu>
Message-ID: <001f01c4b1fd$db3c4960$5f0a048a@gbt.tfo.upm.es>

Hi, everybody,

I'm trying to generate a triangulated mesh from a set of vertex of a box in
movement and I though of using Delaunay3D for this generation. The object is
introducing this mesh in a detect collision library for laparoscopic
simulation, where the time requirements are critical. I have used but the
calculation time is about 16 miliseconds, that I think isn't as fast as we'd
want.

To my knowledge there are some ways to calculate Delaunay triangulation with
different complexity  (n2, n log n, ...).

?Do somebody knows the complexity of the Delaunay3D implementation in VTK?

If is the case, ?Does anybody knows some more efficient Delaunay
implementation code or some faster triangularization algorithms ?

Thanks in advance.

Samuel



=====================================
Samuel Rodr?guez Besc?s
Grupo de Bioingenier?a y Telemedicina
ETSI Telecomunicaci?n - UPM
Ciudad Universitaria s/n
28040 MADRID - ESPA?A

Tel. +34 91 549 57 00 ext. 332
Fax + 34 91 336 68 28
e-mail: srodrigu at gbt.tfo.upm.es
http://www.gbt.tfo.upm.es
=====================================




From bhiron at lsuhsc.edu  Thu Oct 14 11:36:59 2004
From: bhiron at lsuhsc.edu (Budd Hirons)
Date: Thu, 14 Oct 2004 10:36:59 -0500
Subject: [vtkusers] adding a member method to a vtk class
In-Reply-To: <1a1893c0410132255182cf1fd@mail.gmail.com>
References: <1a1893c0410131001774bd6b7@mail.gmail.com>	<200410132331.i9DNV5au026183@lorica.ucc.usyd.edu.au>
	<1a1893c0410132255182cf1fd@mail.gmail.com>
Message-ID: <416E9D1B.5050706@lsuhsc.edu>

Hi Hamid,

Configure your CMakeLists.txt file in your vtkLocal folder to include 
your list of sources and your VTK kits includes.  be sure to follow the 
example and include LocalConfigure.h in your class header, then from the 
command line in that folder, run:

 > cmake .

CMake will load the VTK CMake file and produce a project to match that 
configuration.  the project result will be either vtkLocal.lib or 
vtkLocal.dll depending on your current VTK CMake setup.  Wrappers and 
tests will also be conveniently generated if that is how you are 
building VTK.

Cheers,
Budd.


listboss wrote:
> Thanks Andrew,
> 
> For now I just copied my methods to vtkImageReader and modified the
> headers to account for them.
> 
> But based on your and Leilda's repsonse, it seems that adding a new
> class is wiser and more efficient way of doing this.
> 
> If I do this, i.e. derive a class or add a new one, how can I make
> sure that it gets compiled to shared library (vtIO.dll under windows)
> ?
> 
> Thanks
> Hamid
> 
> 
> On Thu, 14 Oct 2004 09:30:59 +1000, Andrew Maclean <a.maclean at cas.edu.au> wrote:
> 
>>The best method is to derive from the class and add in your methods. Use
>>VTKLocal as the repository for your class if it is of general applicability
>>to other projects that you may be writing.
>>
>>In this way if vtkImageReader changes, a simple recompilation of VTKLocal is
>>all that is necessary.
>>
>>Works well for Windows and Linux. This also has the advantage that you can
>>write test routines and also put them into VTKLocal.
>>
>>
>>Andrew
>>
>>
>>
>>
>>-----Original Message-----
>>From: listboss [mailto:listboss at gmail.com]
>>Sent: Thursday, 14 October 2004 03:01
>>To: baghdadi at phenogenomics.ca
>>Cc: vtkusers at vtk.org
>>Subject: Re: [vtkusers] adding a member method to a vtk class
>>
>>Thanks Leila for the hints...
>>
>>As I said, I am trying to avoid creating a complete new class and
>>introduce it to vtk.
>>
>>Maybe it's better that I added my methods to vtkImageReader class
>>rather than keeping them in a seperate file/class.
>>
>>I'll try your suggestions and keep the list posted about the outcome.
>>
>>Thanks again
>>Hamid
>>
>>On 13 Oct 2004 12:48:14 -0400, Leila Baghdadi <baghdadi at sickkids.ca> wrote:
>>
>>>Hi Hamid
>>>
>>>you should try modifying CMakeList.txt if you are adding new classes,
>>>
>>>I think it is better to make your methods available in the class itself!
>>>
>>>try looking at the directory
>>>VTK/Examples/Build/vtkLocal
>>>
>>>you can place your class in the above directory, there is a
>>>CMakeLists.txt file in the above directory which is good enough to get
>>>you started,
>>>
>>>HTH
>>>
>>>Leila
>>>
>>>
>>>
>>>On Wed, 2004-10-13 at 12:27, listboss wrote:
>>>
>>>>Hi
>>>>
>>>>I have added a member function to vtkImageReader class. This new
>>>>function needs methods which are available in myclass.cpp
>>>>
>>>>To compile my modified vtkImageReader class, first I tried to add
>>>>myclass.cpp to the CMakeList.txt file located in IO folder, but the
>>>>linker complained about a missing instantiator !!! :(
>>>>
>>>>I removed the file from CMakeList.txt and I opened VisualStudio .Net,
>>>>right clicked on IO and selected "Add New Class" and then I added
>>>>"myclass.cpp" to "IO".
>>>>It compiles fine but my question is "Is it right way of doing this ?"
>>>>
>>>>Am I gonna see problems because how I am doing this, or it's just fine ?
>>>>How should I do this if I want to compile VTK under Linux ?
>>>>
>>>>Thanks in advance
>>>>Hamid
>>>>_______________________________________________
>>>>This is the private VTK discussion list.
>>>>Please keep messages on-topic. Check the FAQ at:
>>
>><http://public.kitware.com/cgi-bin/vtkfaq>
>>
>>>>Follow this link to subscribe/unsubscribe:
>>>>http://www.vtk.org/mailman/listinfo/vtkusers
>>>
>>>
>>
> _______________________________________________
> This is the private VTK discussion list. 
> Please keep messages on-topic. Check the FAQ at: <http://public.kitware.com/cgi-bin/vtkfaq>
> Follow this link to subscribe/unsubscribe:
> http://www.vtk.org/mailman/listinfo/vtkusers
> 


From steuwer at ill.fr  Thu Oct 14 13:18:10 2004
From: steuwer at ill.fr (Axel Steuwer)
Date: Thu, 14 Oct 2004 19:18:10 +0200 (CEST)
Subject: [vtkusers] Complexity  of Delaunay 3D Implementation in VTK
In-Reply-To: <001f01c4b1fd$db3c4960$5f0a048a@gbt.tfo.upm.es>
References: <200410052217.14191.burlen@apollo.sr.unh.edu>
	<001f01c4b1fd$db3c4960$5f0a048a@gbt.tfo.upm.es>
Message-ID: <57670.193.49.43.124.1097774290.squirrel@mail.ill.fr>

Hi,

I don't know much about the complexity of the algorithm, but I noticed
that Delaunay2D does a good job even in non-2D geometrys.
I also use the Power Crust algorithm

http://www.eastman.ucl.ac.uk/~thutton/powercrust/

which is pretty fast. Worth a try.

Axel

> Hi, everybody,
>
> I'm trying to generate a triangulated mesh from a set of vertex of a box
> in movement and I though of using Delaunay3D for this generation. The
> object is introducing this mesh in a detect collision library for
> laparoscopic simulation, where the time requirements are critical. I
> have used but the calculation time is about 16 miliseconds, that I think
> isn't as fast as we'd want.
>
> To my knowledge there are some ways to calculate Delaunay triangulation
> with different complexity  (n2, n log n, ...).
>
> ?Do somebody knows the complexity of the Delaunay3D implementation in
> VTK?
>
> If is the case, ?Does anybody knows some more efficient Delaunay
> implementation code or some faster triangularization algorithms ?
>
> Thanks in advance.
>
> Samuel
>
>
>
> ====================================Samuel Rodr?guez Besc?s
> Grupo de Bioingenier?a y Telemedicina
> ETSI Telecomunicaci?n - UPM
> Ciudad Universitaria s/n
> 28040 MADRID - ESPA?A
>
> Tel. +34 91 549 57 00 ext. 332
> Fax + 34 91 336 68 28
> e-mail: srodrigu at gbt.tfo.upm.es
> http://www.gbt.tfo.upm.es
> ==================================_______________________________________________
> This is the private VTK discussion list.
> Please keep messages on-topic. Check the FAQ at:
> <http://public.kitware.com/cgi-bin/vtkfaq> Follow this link to
> subscribe/unsubscribe:
> http://www.vtk.org/mailman/listinfo/vtkusers





From pbernardes at uaum.uminho.pt  Thu Oct 14 09:47:26 2004
From: pbernardes at uaum.uminho.pt (=?iso-8859-1?Q?Paulo_Jos=E9_Correia_Bernardes?=)
Date: Thu, 14 Oct 2004 14:47:26 +0100
Subject: [vtkusers] DXF (or DWG) to VTK
Message-ID: <000001c4b1f4$58df1cd0$b974a8c0@ua.uminho.pt>

Dear all,
 
I?m a new VTK user and I?m trying to use VTK in the visualization of
Archaeological data. Unfortunately all the data I have is in DWG format.
Before I start to write a parser to convert DXF into a VTK file format,
I would like to know if anyone can give me some information about an
existing DXF2VTK converter.
 
Many thanks,
 
Paulo Bernardes
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From ngonzalez at rcm.upr.edu  Thu Oct 14 14:14:34 2004
From: ngonzalez at rcm.upr.edu (Nathaniel Gonzalez)
Date: Thu, 14 Oct 2004 14:14:34 -0400
Subject: [vtkusers] Human Visible Project Data and VTK
Message-ID: <1097777674.5483.69.camel@linux.site>

Hi:

I have read the VTK User Guide and the ITK Software guide. I have been
trying to load the data from the Human Visible Project. I have been able
to display other types of data. Right now I'm just interested in loading
and displaying the ct image. The only information that I have is that
the files are named c_vm.1012 to 2893 and:

Anatomical Area:  TOTAL BODY
The full set of normal CT male images.

Type image: GE CT, Zeus
  Normal CT.

Frame size:  512,512
  Specifies the image size (width, height) in pixels.

Pixel size: SEE FILE HEADER,,
  Specifies the pixel size (width, height, separation) in millimeters.

Image format:  GE 16 BITS, Compressed
  Unix compressed, use "uncompress [filename]" to restore.

Header size:  3416
  The header block size in byte

I am new to image programming, so any help will be greatly appreciated.
I have tried several reader and vtkVolume16Reader without any luck. I
don't want to do anything fancy to start just display a single slide or
load the data volume.


Nathaniel Gonzalez
Programmer
CIAR-RCMI
Medical Science Campus
University of Puerto Rico  



From goodwin.lawlor at ucd.ie  Thu Oct 14 15:32:55 2004
From: goodwin.lawlor at ucd.ie (Goodwin Lawlor)
Date: Thu, 14 Oct 2004 20:32:55 +0100
Subject: [vtkusers] Re: DXF (or DWG) to VTK
References: <000001c4b1f4$58df1cd0$b974a8c0@ua.uminho.pt>
Message-ID: <ckmk96$cu4$1@sea.gmane.org>

Have a look at www.quick3d.com... a shareware app that supports dxf and vtk
file formats.

hth

Goodwin

"Paulo Jos? Correia Bernardes" <pbernardes at uaum.uminho.pt> wrote in message
news:000001c4b1f4$58df1cd0$b974a8c0 at ua.uminho.pt...
Dear all,

I'm a new VTK user and I'm trying to use VTK in the visualization of
Archaeological data. Unfortunately all the data I have is in DWG format.
Before I start to write a parser to convert DXF into a VTK file format, I
would like to know if anyone can give me some information about an existing
DXF2VTK converter.

Many thanks,

Paulo Bernardes



_______________________________________________
This is the private VTK discussion list.
Please keep messages on-topic. Check the FAQ at:
<http://public.kitware.com/cgi-bin/vtkfaq>
Follow this link to subscribe/unsubscribe:
http://www.vtk.org/mailman/listinfo/vtkusers





From malcolm at geovision.co.za  Thu Oct 14 15:45:03 2004
From: malcolm at geovision.co.za (Malcolm Drummond)
Date: Thu, 14 Oct 2004 21:45:03 +0200
Subject: [vtkusers] DXF (or DWG) to VTK
References: <000001c4b1f4$58df1cd0$b974a8c0@ua.uminho.pt>
Message-ID: <001b01c4b226$635e43c0$adf4fea9@bart>

Hi Paulo

I have a python class - dxfReader - that inherits from vtkProgrammableSource. If you want to try it I'll send it to you.

Malcolm 

----- Original Message ----- 
  From: Paulo Jos? Correia Bernardes 
  To: vtkusers at vtk.org 
  Sent: Thursday, October 14, 2004 3:47 PM
  Subject: [vtkusers] DXF (or DWG) to VTK


  Dear all,

   

  I'm a new VTK user and I'm trying to use VTK in the visualization of Archaeological data. Unfortunately all the data I have is in DWG format. Before I start to write a parser to convert DXF into a VTK file format, I would like to know if anyone can give me some information about an existing DXF2VTK converter.

   

  Many thanks,

   

  Paulo Bernardes



------------------------------------------------------------------------------


  _______________________________________________
  This is the private VTK discussion list. 
  Please keep messages on-topic. Check the FAQ at: <http://public.kitware.com/cgi-bin/vtkfaq>
  Follow this link to subscribe/unsubscribe:
  http://www.vtk.org/mailman/listinfo/vtkusers
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From William.T.Bridgman.1 at gsfc.nasa.gov  Thu Oct 14 16:16:03 2004
From: William.T.Bridgman.1 at gsfc.nasa.gov (W.T. Bridgman)
Date: Thu, 14 Oct 2004 16:16:03 -0400
Subject: [vtkusers] How do I test for an empty dataset?
Message-ID: <DF7B81C4-1E1D-11D9-9440-0030657B87AC@gsfc.nasa.gov>

I'm building some isosurfaces from an unstructured grid using 
vtkContourFilter.  In some cases, my isovalue of choice is beyond the 
data range.

I've got (in Python)

iso=vtkContourFilter()
iso.SetInput(stuff.GetOutput())
iso.SetValue(0,isovalue)
found=iso.GetOutput()

Sometimes, the PolyData object 'found' contains no data and generates 
an error on subsequent processing.

I've tried

found==None
found.GetNumberOfPolys()==0 (which always seems to evaluate as true!!)
len(found.GetPolys())==0

and a few others with no success.  I've not found any examples of this 
situation in the samples or discussed on the mailing list.

Suggestions?

Thanks,
Tom
--
Dr. William T."Tom" Bridgman               Scientific Visualization 
Studio
Global Science & Technology, Inc.          NASA/Goddard Space Flight 
Center
Email: William.T.Bridgman.1 at gsfc.nasa.gov  Code 935
Phone: 301-286-1346                        Greenbelt, MD 20771
FAX:   301-286-1634                        http://svs.gsfc.nasa.gov/



From Charles.Boivin at rwdiwest.com  Thu Oct 14 17:49:25 2004
From: Charles.Boivin at rwdiwest.com (Charles Boivin)
Date: Thu, 14 Oct 2004 15:49:25 -0600
Subject: [vtkusers] Weird problems with my volume reader...
Message-ID: <s16ea01b.072@mailwest.rwdiwest.com>

Hello,

I am currently in the process of writing a volume reader for my own
type of data. The data is on a structured cartesian grid, and is all
stored in one file. I decided to base my reader on the vtkVolume16Reader
so I, too, derived a class from vtkVolumeReader.

Now, this is my first try with 3D structured data, so I am still not
too familiar with the process. I have previously written readers for
vtkPolyData data structures, and things went well there. First thing I
noticed is that, for my previous reader, most of the work was done in
the Execute() member function. For the volume reader, there seems to be
both a ExecuteInformation() and a ExecuteData() functions. I read the
description of my file and data is ExecuteInformation() and read the
actual data from disk in ExecuteData(). Is this what should be done?

I believe the data gets read properly because I am somehow able to
display some of it, and it looks alright. However, there is some strange
behavior that I am not quite sure how to fix. First of all, the data
seems to be read *several* times before it is displayed. ExecuteData()
is called about 2-3 times before the first display, and then, if I
change the array I want displayed, the data is read once more. Should I
be setting some flag saying that the data has been read? That seemed to
be taken care of automatically in the vtkPolyData reader I wrote before
(I derived that one from vtkPolyDataSource).. is this a case where the
volume reader behave differently?

There is also one last strange behavior: I load 7 different scalars in
my data, and stored them the same way I would store point data in the
vtkPolyData reader. The *order* of the scalars seems to change once I
pass the output to my filters, however. The last array now seems to be
the first one, with all other arrays being shifted on spot. As anyone
seen such a behavior before, and if so, could they provide some hints as
to where things might be going wrong? I can provide some sample code if
necessary, but I figured this email was already long enough as it is...
I am trying to see if some of you have experienced these problems before
and if so, what you did to fix them.

Many thanks in advance,

Charles Boivin



From craig.scott at csiro.au  Thu Oct 14 20:01:50 2004
From: craig.scott at csiro.au (Craig N. Scott)
Date: Fri, 15 Oct 2004 10:01:50 +1000
Subject: [vtkusers] Glyphs: color by one scalar, scale by another
In-Reply-To: <004701c4b1fa$c523e1e0$6401a8c0@brick>
References: <1097718710.5485.7.camel@caulfield>
	<004701c4b1fa$c523e1e0$6401a8c0@brick>
Message-ID: <1097798510.5996.7.camel@caulfield>

Thanks Frank. Unfortunately, I have to be able to do both scale and
color with just scalar data or just vector data. However, I have been
able to do what I want using vtkProgrammableGlyphFilter. I had to copy
the data set for one of the scalars and store it, but it looks like the
only solution that I can see.


On Fri, 2004-10-15 at 00:33, Frank Conradie wrote:
> Hi Craig
> 
> As far as I'm aware, you will have to use scalars for the one and vectors
> for the other value, e.g:
> 
> glyphs.SetColorModeToColorByScalar()
> glyphs.SetScaleModeToScaleByVector()
> 
> Frank Conradie
> Rossland, BC, Canada
> 
> 
> ----- Original Message -----
> From: "Craig N. Scott" <craig.scott at csiro.au>
> To: <vtkusers at vtk.org>
> Sent: Wednesday, October 13, 2004 6:51 PM
> Subject: [vtkusers] Glyphs: color by one scalar, scale by another
> 
> 
> > Hi all. Anyone know if it is possible to have the color and scaling of
> > vtkGlyph3D's controlled by *different* scalars? I need the "radius"
> > scalar to control the size of a sphere glyph, but I need each sphere
> > colored according to a different scalar, like "velocity".
> >
> > I eventually need to do this with vectors instead of scalars too, but I
> > am assuming the solution to the above would be similar for vectors.
> >
> > Any suggestions appreciated. Thanks in advance.
> >
> > --
> > Dr Craig Scott, CSIRO (CMIS)
> > Melbourne, Australia
> >
> > Computers are easy to reboot. Attitudes are much harder.
> > _______________________________________________
> > This is the private VTK discussion list.
> > Please keep messages on-topic. Check the FAQ at:
> <http://public.kitware.com/cgi-bin/vtkfaq>
> > Follow this link to subscribe/unsubscribe:
> > http://www.vtk.org/mailman/listinfo/vtkusers
-- 
Craig Scott, CSIRO (CMIS)
Ph:  +613 9545 8096

Computers are easy to reboot. Attitudes are much harder.


From Eric.Harlow at edwards.af.mil  Thu Oct 14 20:36:26 2004
From: Eric.Harlow at edwards.af.mil (Harlow Eric D Contr 412 TW/ENR)
Date: Thu, 14 Oct 2004 17:36:26 -0700
Subject: [vtkusers] Please help with the 2D plotting class vtkxyplotactor?
Message-ID: <7D4FEEC34EF66843830C74D10D651969028B5A02@fsfspm38>

?

Hello,

I am trying to set tick marks in my 2D plot. I realize this should be easy,
but nothing happens when I execute the following code.  It steps into the
macros for setting the various values, but to my dismay no tick marks
appear. 

Here is the code I am using.

	vtkAxisActor2D* myXAxis = PlotActor_->GetXAxisActor2D();
	vtkAxisActor2D* myYAxis = PlotActor_->GetYAxisActor2D();
	myXAxis->SetTickLength(10);

	myXAxis->SetTickOffset(1);
	myXAxis->SetTickVisibility(1);
	myXAxis->TickVisibilityOn();


Any help is appreciated.

Thanks again,

Eric



From sscomp2004 at yahoo.com.au  Fri Oct 15 02:42:36 2004
From: sscomp2004 at yahoo.com.au (s comp)
Date: Fri, 15 Oct 2004 16:42:36 +1000 (EST)
Subject: [vtkusers] Maybe a silly question, but what is an ivar?
Message-ID: <20041015064236.8550.qmail@web61104.mail.yahoo.com>

The documentation keeps mentioning ivar's, what are these, from what I can gather, I think it stands for integer variable...?
 
Thanks



---------------------------------
Find local movie times and trailers on Yahoo! Movies.
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From petwa055 at student.liu.se  Fri Oct 15 05:13:10 2004
From: petwa055 at student.liu.se (Peter Wallin)
Date: Fri, 15 Oct 2004 11:13:10 +0200
Subject: [vtkusers] Re: Mapping/Interpolate scalars in a suitable way on a
	Finite Element Mesh
Message-ID: <daed64da9931.da9931daed64@liu.se>


Im using the vtkBandedPolyDataContourFilter and it works fine, thanks for your help, I must have overlooked that filter somehow.

thanks for all your answers!

Regards,

Peter
----- Original Message -----
From: Steve Joyce <Steve.Joyce at sercoassurance.com>
Date: Thursday, October 14, 2004 4:50 pm
Subject: Re: Mapping/Interpolate scalars in a suitable way on a Finite	Element Mesh

> Hi,
> 
> The interpolation is by colour rather than by value by default.
> However, I've obtained reasonable results using a
> vtkBandedPolyDataContourFilter, which uses the value interpolation
> defined for the cell type to create sub-cells of a given scalar value,
> which are then coloured. The number of sub-cells depends on your node
> values and the number of values you have specified for the filter. It
> works like a normal contour filter, but fills in the contours with the
> appropriate colour (hence the name). Note that point scalars get
> converted to cell scalars by this filter. I've only tried this for
> linear hexahedrons so far.
> 
> Steve
> 
> >>> vtkusers-request at vtk.org 14/10/2004 15:26:16 >>>
> 
> ------------------------------
> 
> I have read in a mesh from a Finite Element solver, into VTK and 
> now I
> want to map the stresses( point scalars) in a suitable way. The values
> are mapped correctly in the points(nodes) but the interior of the cell
> looks bad.
> 
> I have attached two pictures that shows the mapping. As seen in the
> images, the diagonal of the quads has a constant value i.e. the result
> is interpreted as two planar triangles. In a case with a quad element
> and with a non-planar response surface this is not a good
> representation. 
> 
> 
> I want the mapping to be like a contour filter that clearly show the
> stresses around a certain point(s). Any suggestions? Is it 
> possibly to
> somehow use the contourfilter on my scalars?
> 
> 
> 
> 
> code extraction...
> 
> 
> this->lut=vtkLookupTable::New();
> this->lut->SetTableRange(this->filereader->GetOutput()-
> >GetScalarRange());this->lut->SetHueRange(0.667, 0.0);
> this->lut->Build();
> 
> 
> this->bar=vtkScalarBarActor::New();
> this->bar->SetLookupTable(lut);
> this->bar->SetNumberOfLabels(8);
> 
> 
> 
> this->pMapper=vtkPolyDataMapper::New();
> this->pMapper->SetInput(gFilter->GetOutput());
> this->pMapper->SetLookupTable(lut);
> this->pMapper->SetScalarRange(this->filereader->GetOutput()-
> >GetScalarRange());
> 
> // furhter down the pipeline..
> 
> 
> this->actor->SetMapper(dataMapper);
> //this->actor->GetProperty()->SetInterpolationToFlat();
> this->actor->GetProperty()->SetInterpolationToGouraud();
> this->actor->GetProperty()->SetAmbient(0.4);
> this->actor->GetProperty()->SetDiffuse(0.2);
> this->actor->GetProperty()->SetSpecular(0.2);
> .....
> 
> Best Regards,
> 
> Peter
> 
> 
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> 
> ------------------------------
> 
> _______________________________________________
> vtkusers mailing list
> vtkusers at vtk.org 
> http://www.vtk.org/mailman/listinfo/vtkusers 
> 
> 
> End of vtkusers Digest, Vol 6, Issue 26
> ***************************************
> 
> 
> 
> 
> ****Disclaimer***********
> This e-mail and any attachments may contain confidential and/or 
> privileged material; it  is for the intended addressee(s) only.  
> If you are not a named addressee, you must not use, retain or 
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> ****End Disclaimer*******
> <<<<GWIASIG 0.07>>>>
> 



From sandra74 at interfree.it  Fri Oct 15 08:28:14 2004
From: sandra74 at interfree.it (sandra74 at interfree.it)
Date: 15 Oct 2004 12:28:14 -0000
Subject: [vtkusers] Problems for VTK 4.2 for Borland C++ 6.0
Message-ID: <20041015122814.20026.qmail@community6.interfree.it>


Hello,
I'm trying to use VTK Library with Borland C++ 6.0.
I have loaded the exercise to create a sphere and I set the include path and lib path (in Project -> Option -> Directoties), 
but I have the following problem: 

[Linker Error] Unresolved external '[Linker Error] Unresolved external 'vtkSphereSource::New()' referenced from C:\SANDRA\VTK\ESERCIZI\FILE1.OBJ::New()' referenced from C:\SANDRA\VTK\ESERCIZI\FILE1.OBJ

and so on with other object (vtkPolyDataSource, vtkPolyDataMapper, ecc).
Can someone help me?
Thanks in advance.
Alessandra.

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From I.deBoer at polytec.de  Fri Oct 15 08:32:06 2004
From: I.deBoer at polytec.de (de Boer Ingo)
Date: Fri, 15 Oct 2004 14:32:06 +0200
Subject: [vtkusers] Problems for VTK 4.2 for Borland C++ 6.0
Message-ID: <1484AEC8AB498A4EB64D4A8137D23FD901450059@02polywbr.waldbronn.polytec.de>


Hi,

did you link the libs in the linker-section ?
(only setting the path is not enough)

greets
  Ingo

---
Dr.-Ing. Ingo H. de Boer

Polytec GmbH
Polytec-Platz 1-7, 76337 Waldbronn, Germany
phone: ++49 7243 604 106
fax  : ++49 7243 604 255
 
> Hello,
> I'm trying to use VTK Library with Borland C++ 6.0.
> I have loaded the exercise to create a sphere and I set the 
> include path and lib path (in Project -> Option -> Directoties), 
> but I have the following problem: 
> 
> [Linker Error] Unresolved external '[Linker Error] Unresolved 
> external 'vtkSphereSource::New()' referenced from 
> C:\SANDRA\VTK\ESERCIZI\FILE1.OBJ::New()' referenced from 
> C:\SANDRA\VTK\ESERCIZI\FILE1.OBJ
> 
> and so on with other object (vtkPolyDataSource, 
> vtkPolyDataMapper, ecc).
> Can someone help me?
> Thanks in advance.
> Alessandra.
> 


From petwa055 at student.liu.se  Fri Oct 15 10:16:17 2004
From: petwa055 at student.liu.se (Peter Wallin)
Date: Fri, 15 Oct 2004 16:16:17 +0200
Subject: [vtkusers] Fwd: Re: Mapping/Interpolate scalars in a suitable way
 on a Finite Element Mesh
Message-ID: <ddf0a1ddb9ea.ddb9eaddf0a1@liu.se>

An embedded message was scrubbed...
From: Peter Wallin <petwa055 at student.liu.se>
Subject: Re: Mapping/Interpolate scalars in a suitable way on a Finite
	Element Mesh
Date: Fri, 15 Oct 2004 11:13:10 +0200
Size: 5125
URL: <http://www.vtk.org/pipermail/vtkusers/attachments/20041015/67d0a1cc/attachment.eml>

From petwa055 at student.liu.se  Fri Oct 15 10:17:08 2004
From: petwa055 at student.liu.se (Peter Wallin)
Date: Fri, 15 Oct 2004 16:17:08 +0200
Subject: [vtkusers] animation of scalar values
Message-ID: <dde766de2fec.de2fecdde766@liu.se>



Hi there!


I have an application where I animate deformation on a mesh by changing the scalefactor in vtkWarpVector filter for the vectors. Now I also want to include  stresses(scalar values) into the animation that also are to be animated. The scalars are mapped with the vtkBandContourFilter.

basiclly what I want to do for each timestep is to go through all the scalar vaules and multiply them with a current scalefactor. The scalarvalues that I read in are for the maximum stresses so by multipling them with a different scalefactor for each timestep I get a linear animation. Where the scalfactor range between 0-1.

some pseudocode:

GetPointData()

for (all the timesteps) {
		updatedScaleFactor=factor*i;
       for( all the points i ){
    i=i*updatedScaleFactor; }

Update Render;
}

Is there a method doing this that is  accessible for my scalarvalues or do I have to implement it myself. My main concern in that case is how to modify the point data.How to get it.

Any help would be grateful!

Regars Peter




From jbw at ieee.org  Fri Oct 15 11:04:59 2004
From: jbw at ieee.org (Jeremy Winston)
Date: Fri, 15 Oct 2004 11:04:59 -0400
Subject: [vtkusers] Human Visible Project Data and VTK
In-Reply-To: <1097777674.5483.69.camel@linux.site>
References: <1097777674.5483.69.camel@linux.site>
Message-ID: <416FE71B.1030908@ieee.org>

Nathaniel Gonzalez wrote:
> Hi:
> 
> I have read the VTK User Guide and the ITK Software guide. I have been
> trying to load the data from the Human Visible Project.

Nathaniel,
    The VHP CT data are in GE's Signa format.
You can use the convenience class

      vtkGESignaReader

to read them w/o having to worry about the details
such as width/height, etc.  You will have to specify
a level and window in order to see things properly,
though.

HTH,
-Jeremy



From rohlof at gmx.de  Fri Oct 15 11:29:55 2004
From: rohlof at gmx.de (Timo Frenzel)
Date: Fri, 15 Oct 2004 17:29:55 +0200
Subject: AW: [vtkusers] use vtkPolyData to define vector
In-Reply-To: <00bc01c4ad38$b47f1e20$9c05a992@win.doc.ic.ac.uk>
Message-ID: <E1CIU2v-00081F-00@smtp07.web.de>

vtkHedgeHog is using the Filter vtkPolyDataNormals.
To get normal informations copy the output of PolyDataNormals to a new
polydate structure and get the pointdata.
 
For example:
#include "vtkPolyData.h"
#include "vtkPointData.h"
#include "vtkPolyDataNormals.h"
 
vtkPolyDataNormals *normals = vtkPolyDataNormals::New(); //you are using the
output of normals in vtkHedgeHog
normals -> SetInput(yourstructure->GetOutput());
vtkPolyData    *pdata = vtkPolyData::New();
pdata = DeepCopy((vtkDataSet *)normals->GetOutput());
float = p_normal[3]; //your normal vector
pdata -> GetPointData()->GetNormals()->GetTuple(pointid,p_normal); //pointid
is the ID of the chosen point
 
Hope this works, Timo Frenzel.
 

  _____  

Von: vtkusers-bounces at vtk.org [mailto:vtkusers-bounces at vtk.org] Im Auftrag
von Longfei Cong
Gesendet: Freitag, 8. Oktober 2004 13:19
An: vtkusers at vtk.org
Betreff: [vtkusers] use vtkPolyData to define vector


Hi :
    I want to visual a surface with normal vector on it, i got that
vtkHedgeHog done this, but how can i denote the vector in vtkPolyData, for
vtkHedgeHog->SetInput  is vtkPolyData.
 
wish for your help!!!!!!!
longfei
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From rohlof at gmx.de  Fri Oct 15 11:34:02 2004
From: rohlof at gmx.de (Timo Frenzel)
Date: Fri, 15 Oct 2004 17:34:02 +0200
Subject: AW: [vtkusers] use vtkPolyData to define vector
In-Reply-To: <00bc01c4ad38$b47f1e20$9c05a992@win.doc.ic.ac.uk>
Message-ID: <20041015153526.66AD73043D@public.kitware.com>

Perhaps, you have to Update your structure before reading point
informations:
 
 
vtkHedgeHog is using the Filter vtkPolyDataNormals.
To get normal informations copy the output of PolyDataNormals to a new
polydate structure and get the pointdata.
 
For example:
#include "vtkPolyData.h"
#include "vtkPointData.h"
#include "vtkPolyDataNormals.h"
 
vtkPolyDataNormals *normals = vtkPolyDataNormals::New(); //you are using the
output of normals in vtkHedgeHog
normals -> SetInput(yourstructure->GetOutput());
vtkPolyData    *pdata = vtkPolyData::New();
pdata = DeepCopy((vtkDataSet *)normals->GetOutput());
pdata -> Update();
float = p_normal[3]; //your normal vector
pdata -> GetPointData()->GetNormals()->GetTuple(pointid,p_normal); //pointid
is the ID of the chosen point
 
Hope this works, Timo Frenzel.
 

  _____  

Von: vtkusers-bounces at vtk.org [mailto:vtkusers-bounces at vtk.org] Im Auftrag
von Longfei Cong
Gesendet: Freitag, 8. Oktober 2004 13:19
An: vtkusers at vtk.org
Betreff: [vtkusers] use vtkPolyData to define vector


Hi :
    I want to visual a surface with normal vector on it, i got that
vtkHedgeHog done this, but how can i denote the vector in vtkPolyData, for
vtkHedgeHog->SetInput  is vtkPolyData.
 
wish for your help!!!!!!!
longfei
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From karl at elemtech.com  Fri Oct 15 11:52:03 2004
From: karl at elemtech.com (Karl Merkley)
Date: Fri, 15 Oct 2004 09:52:03 -0600
Subject: [vtkusers] Mac Child Window Handling
Message-ID: <283DDAE8-1EC2-11D9-B434-000D9337B8A2@elemtech.com>


I'm looking at vtkCarbonRenderWindow and trying to figure out what 
should happen if I have a vtk window that is a child of another window 
under Mac OS X.  This works nicely on both Windows and Linux but it  is 
not working correctly on the Mac.  In doing some research, it looks 
like the Mac (AGL) method of handling child windows is very different 
and that perhaps this has not been completely implemented yet in the 
vtk Carbon stuff.  There is a comment from the latest CVS snapshot that 
says "if we are a child we'll need to do something smarter."  I don't 
know if that means that the code that is there is doing something 
smarter or if more needs to be done to make it smarter.

Has anybody looked at this in detail?  Any basic ideas on what should 
be done?   I'm willing to give a crack at making it work.  It appears 
that at the very least AGL_BUFFER_RECT needs to be set for a child 
window.  It might also be necessary (or more efficient) to look at 
AGL_CLIP_REGION to set the clipping area.   Does anybody have any 
experience or guidance with this?  Am I making this harder than it 
really is?   I'm looking at examples and feeling my way along.

	TIA,
		Karl

Karl G. Merkley
karl at elemtech dot com 



From jak4.scr at gmx.net  Fri Oct 15 13:38:40 2004
From: jak4.scr at gmx.net (jak4.scr at gmx.net)
Date: Fri, 15 Oct 2004 19:38:40 +0200 (MEST)
Subject: [vtkusers] Multiple Actors for Volume Rendering
Message-ID: <24158.1097861920@www27.gmx.net>

Hi,

I'm currently trying to render two or more Volumes in with one renderer.
Unfortunatly there are 2 problems:
  a) when I use the vtkVolumeRayCastMapper (with
vtkVolumeRayCastCompositeFunction) one actor is always in front while the
other is always behind it (no matter how I rotate them). This doesn't happen
with the vtkVolumeTextureMapper2D.
  b) I want the raycasting to stop if we pass from the first actor (volume)
into the next one. Apparently this is somehow done by the
vtkVolumeTextureMapper2D (somehow because from the "front" i can't see the
actor (actor2) behind actor1 which is what I want, but after rotating until
actor2 is in front I can see actor1). The other problem is that because the
actors are very close to each other the bounding box of actor1 cuts into the
bounding box of actor2.

In short: I want to volume render two or more actors but don't I don't want
to be able to see actors lying behind a actor. How can I accomplish this?

Thank you for your time and input.

Regards
  Johannes

PS: Searched the vtk-users-mailing list but didn't find anything
appropriate.

-- 
GMX ProMail mit bestem Virenschutz http://www.gmx.net/de/go/mail
+++ Empfehlung der Redaktion +++ Internet Professionell 10/04 +++



From glehmann at imaging.robarts.ca  Fri Oct 15 15:14:17 2004
From: glehmann at imaging.robarts.ca (Glen Lehmann)
Date: Fri, 15 Oct 2004 15:14:17 -0400
Subject: [vtkusers] Mac Child Window Handling
In-Reply-To: <283DDAE8-1EC2-11D9-B434-000D9337B8A2@elemtech.com>
References: <283DDAE8-1EC2-11D9-B434-000D9337B8A2@elemtech.com>
Message-ID: <68C56982-1EDE-11D9-849E-000A956FBE16@imaging.robarts.ca>

Hi Karl,

You are correct, child widgets are not supported yet.  Carbon itself 
does not support sub-windows within a Carbon window; however, the 
HIToolbox was introduced in OS X 10.2 to provide a means of supporting 
a hierarchal window structure via HIView.

Eventually, each vtkCarbonRenderWindow should be contained inside a 
HIViewObject and multiple HIViewObjects could be supported.

AGL_BUFFER_RECTs are the way to go for now.

Cheers,
Glen

On Oct 15, 2004, at 11:52 AM, Karl Merkley wrote:

>
> I'm looking at vtkCarbonRenderWindow and trying to figure out what 
> should happen if I have a vtk window that is a child of another window 
> under Mac OS X.  This works nicely on both Windows and Linux but it  
> is not working correctly on the Mac.  In doing some research, it looks 
> like the Mac (AGL) method of handling child windows is very different 
> and that perhaps this has not been completely implemented yet in the 
> vtk Carbon stuff.  There is a comment from the latest CVS snapshot 
> that says "if we are a child we'll need to do something smarter."  I 
> don't know if that means that the code that is there is doing 
> something smarter or if more needs to be done to make it smarter.
>
> Has anybody looked at this in detail?  Any basic ideas on what should 
> be done?   I'm willing to give a crack at making it work.  It appears 
> that at the very least AGL_BUFFER_RECT needs to be set for a child 
> window.  It might also be necessary (or more efficient) to look at 
> AGL_CLIP_REGION to set the clipping area.   Does anybody have any 
> experience or guidance with this?  Am I making this harder than it 
> really is?   I'm looking at examples and feeling my way along.
>
> 	TIA,
> 		Karl
>
> Karl G. Merkley
> karl at elemtech dot com
> _______________________________________________
> This is the private VTK discussion list. Please keep messages 
> on-topic. Check the FAQ at: <http://public.kitware.com/cgi-bin/vtkfaq>
> Follow this link to subscribe/unsubscribe:
> http://www.vtk.org/mailman/listinfo/vtkusers
>



From jffmarker at gmail.com  Fri Oct 15 16:26:16 2004
From: jffmarker at gmail.com (Jeff Marker)
Date: Fri, 15 Oct 2004 16:26:16 -0400
Subject: [vtkusers] Keeping an icon facing the camera
Message-ID: <b45c85504101513261952e9fd@mail.gmail.com>

Good day all,

I've been using VTK for a little while now, but have seemingly hit a
wall; I'd like to display, in effect, an icon on screen that is always
facing the camera, no matter where it is in the scene. However, I also
need to be able to place it in world coordinates (so it can match
position with other objects in the scene that won't be constrained
with the camera).

I've been trying to work with mapping a texture to a vtkPlaneSource
object. I initially tried to use the vtkFollower actor; however, when
the plane source was mapped to this actor, the coordinates and
transforms seemed to be in a coordinate system relative to the camera,
which is something I really didn't want. I've also tried simply
calling SetNormal on the plane source to face the camera, however I
find that when the camera is at an elevation of say 45 degrees, and I
perform sequential azimuth adjustments, the texture slowly rotates
along the normal (eventually resulting in an upside-down icon that
faces the camera).

Any suggestions would be appreciated, thanks!

-- Jeff Marker
 jffmarker at gmail.com


From eugene at salk.edu  Fri Oct 15 17:27:34 2004
From: eugene at salk.edu (Eugene Kim)
Date: Fri, 15 Oct 2004 14:27:34 -0700
Subject: [vtkusers] Backfaces with scalar color mapping
Message-ID: <079F4024-1EF1-11D9-A7DD-000D93AF952C@salk.edu>

Hi everyone,

	I've been looking around to see if VTK supports backface coloring 
AFTER applying a scalar map to an actor.  So far, I haven't been able 
to find anything.  Does anyone know if this is supported or not, and if 
so where?

Thanks,
Eugene Kim



From sscomp2004 at yahoo.com.au  Fri Oct 15 22:46:07 2004
From: sscomp2004 at yahoo.com.au (s comp)
Date: Sat, 16 Oct 2004 12:46:07 +1000 (EST)
Subject: [vtkusers] Are there dummy filters in vtk? (essentially just
	renaming objects)
Message-ID: <20041016024607.11107.qmail@web61107.mail.yahoo.com>

Hi All,
 
Are there dummy filters in vtk, that will essentialy just rename objects? So that I can pass the same data to different filters, but with different names.
 
Thanks,
 
Sonam





---------------------------------
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From zj_best at eyou.com  Sat Oct 16 03:53:28 2004
From: zj_best at eyou.com (ÕŽø)
Date: 16 Oct 2004 15:53:28 +0800
Subject: [vtkusers] Is there any method to calculate the surface area of a
	polyData isoSurface and the Volume which it s
Message-ID: <297913210.12749@eyou.com>

hi,every one:
  i have builded an application of 3d construction of skin,and i want to 
calculate the surface area of an actor,just like  skin ,and also i want to 
calculate the volume whick the actor sorrounds,is there any vtk classes or 
methods can do this job? thank you for reading ,best wishes:)





--http://www.eyou.com
--??????????????????  ????????  ????????  ????????  ????????...????????

--http://vip.eyou.com
--????????????VIP????  ??????????????????




From p3rdigao at netcabo.pt  Sat Oct 16 19:36:18 2004
From: p3rdigao at netcabo.pt (p3rdigao)
Date: Sun, 17 Oct 2004 00:36:18 +0100
Subject: [vtkusers] Once Again....because i didnt get reply the first
	time....how can i solve this problem in VS .Net 2003???
Message-ID: <F60ADD7EC4769848922D798EBE8DD8E904AAD654@VS2.hdi.tvcabo>


The Progran in VS .Net 2003
 
#include "vtkDataSetReader.h"

#include "vtkDataSetWriter.h" 

#include "vtkDataSet.h"

void main(int argc, char *argv[]){

vtkDataSetReader* reader = vtkDataSetReader::New(); 

reader->SetFileName("c:\braquial.vtk"); 

reader->GetOutput();

vtkDataSetWriter *writer=NULL;

writer->SetFileName("foo-ascii.vtk");

 

}

 

The errors

 

1) test error LNK2001: unresolved external symbol "public: class vtkDataSet * __thiscall vtkDataSetReader::GetOutput(void)" (?GetOutput at vtkDataSetReader@@$$FQAEPAVvtkDataSet@@XZ)


 

~2) test error LNK2001: unresolved external symbol "public: static class vtkDataSetReader * __cdecl vtkDataSetReader::New(void)" (?New at vtkDataSetReader@@$$FSAPAV1 at XZ)


 

 

 

3) test fatal error LNK1120: 2 unresolved externals



 

 

 

 



From burlen at apollo.sr.unh.edu  Sat Oct 16 20:56:45 2004
From: burlen at apollo.sr.unh.edu (Burlen Loring)
Date: Sat, 16 Oct 2004 20:56:45 -0400
Subject: [vtkusers] What is the correct way to use vtkAxisActor2D SetRange
Message-ID: <200410162056.45915.burlen@apollo.sr.unh.edu>

Hi,
I am using python.

I have positioned the axis objects to be along side of my contour plots. In 
this case the axis is a vertical one. 

When I use the SetRange of the AxisActor2D what I get doesn't corespond to 
what I sent in as the range. I call set range with the output of GetBounds(). 
for example:

SetRange(-15.26998233795166, 14.528364181518555)

and I get -20 to 20 on the screen. 

This is a problem since I have positioned the axis actor so that it is the 
same length as the plot and the plot bounds are -15 to 14.

The behavior of the horizontally positioned one is similar but the output 
range is not the same even though the call to SetRange has the same 
arguments.

Does any one know how to use these actors to provide axis to a plot??
 





From neelam at apvindia.com  Sun Oct 17 00:30:31 2004
From: neelam at apvindia.com (neelam)
Date: Sun, 17 Oct 2004 10:00:31 +0530
Subject: [vtkusers] To Handle large Structured Grid Data (1000*1000*1000)
Message-ID: <200410170426.JAA12515@pr10.indiatimes.com>


hi all
   I am working On structured grid  and i want to handle  large Structured Grid Data (1000*1000*1000) .Can any one suggest me for such type of large data . 
  when i want to use such dimensions in structured grid i got   vtkfloatarray exception .
thanks in advance for suggestion.
bye
Regards 
Neelam Sanjeev Verma
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From p3rdigao at netcabo.pt  Sun Oct 17 13:37:32 2004
From: p3rdigao at netcabo.pt (p3rdigao)
Date: Sun, 17 Oct 2004 18:37:32 +0100
Subject: [vtkusers] Re: once Again....because i didnt get reply the first
Message-ID: <F60ADD7EC4769848922D798EBE8DD8E904AAD655@VS2.hdi.tvcabo>

 
I include d:\vtk\IO in the include files.

How do I link vtkIO ? It is not the way above?

Or is missing include IO binary dirs of VTKBin?....in the include files also or elsewhere?

 

Thanks for your attention

Regards 

p3

 

> p3rdigao,

> I bet you didn't link againt vtkIO (where vtkDataSetReader is defined), so the linker can not find the symbol.

> HTH

> Mathieu

 
 
 


From lagaffe74130 at yahoo.fr  Sun Oct 17 14:10:55 2004
From: lagaffe74130 at yahoo.fr (Mr Gaffe)
Date: Sun, 17 Oct 2004 20:10:55 +0200 (CEST)
Subject: [vtkusers] mac osx error compilation
Message-ID: <20041017181055.39037.qmail@web25207.mail.ukl.yahoo.com>

hello,
I can' compile VTK 4.2 under mac os x 10.3 with gcc 3.3 and cmake 2.0.3:
 
ERROR:
Building executable /Users/arg/Projects/VTK/bin/GraphicsCxxTests...
ld: /Users/arg/Projects/VTK/binlibvtk.png.a(png.o) illegal reference to symbol: _crc32 defined in indirectly referenced dynamic library /usr/lib/libz.1.dy lib
 
any idea ?
thanks,
Lagaffe
 

		
---------------------------------
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From cnavarro at ncsa.uiuc.edu  Sun Oct 17 14:28:53 2004
From: cnavarro at ncsa.uiuc.edu (Christopher Navarro)
Date: Sun, 17 Oct 2004 13:28:53 -0500
Subject: [vtkusers] Re: once Again....because i didnt get reply the first
In-Reply-To: <F60ADD7EC4769848922D798EBE8DD8E904AAD655@VS2.hdi.tvcabo>
References: <F60ADD7EC4769848922D798EBE8DD8E904AAD655@VS2.hdi.tvcabo>
Message-ID: <6.0.0.22.2.20041017132551.01be0028@pop.ncsa.uiuc.edu>


For setting up visual studios, you might want to check out this old post on 
this mailing list:

http://public.kitware.com/pipermail/vtkusers/2002-October/063590.html

regards,

-chris

At 12:37 PM 10/17/2004, p3rdigao wrote:
>
>I include d:\vtk\IO in the include files.
>
>How do I link vtkIO ? It is not the way above?
>
>Or is missing include IO binary dirs of VTKBin?....in the include files 
>also or elsewhere?
>
>
>
>Thanks for your attention
>
>Regards
>
>p3
>
>
>
> > p3rdigao,
>
> > I bet you didn't link againt vtkIO (where vtkDataSetReader is defined), 
> so the linker can not find the symbol.
>
> > HTH
>
> > Mathieu
>
>
>
>
>_______________________________________________
>This is the private VTK discussion list.
>Please keep messages on-topic. Check the FAQ at: 
><http://public.kitware.com/cgi-bin/vtkfaq>
>Follow this link to subscribe/unsubscribe:
>http://www.vtk.org/mailman/listinfo/vtkusers




From mlaks at verizon.net  Sun Oct 17 16:06:47 2004
From: mlaks at verizon.net (Meshulum Laks)
Date: Sun, 17 Oct 2004 16:06:47 -0400
Subject: [vtkusers] problem with vtk on linux (debian) with opengl libs from
	ati radeon
Message-ID: <200410171606.47961.mlaks@verizon.net>

Hi,

I am working with vtk on 2 different systems. Both are running debian linux 
sid. 

I installed the debian vtk packages on both machines. On the cheapo standard 
video card (using the mesa opengl libraries i guess) machine, the vtk 
packages work fine. the tutorial examples work with both python and c++ 
versions.

On the second machine  I  installed a ati radeon 9800xt video card with the 
proprietary ati opengl packages. This is giving me trouble.

The programs compile fine however when i run the tutorial programs i get 
nonsense images (random coloured flickering pixels instead of the "nice 
rotating cones" of the tutorial).  

I abandoned the debian vtk precompiled binaries and  then downloaded and 
compiled and installed the latest release version of the vtk kit (although i 
had it on both disks from both the textbook and users guide it was easier to 
download...) as well as the data etc. I compiled and set the environmental 
variables to point to the local install /home/mlaks/VTK, and nonetheless 
still get the same effect - nothing more than flickering pixels. No 
Cones!!!!

Note that the card works fine with the gears examples from ati and the fxgl 
variant gears examples that ati provides. 600+ frames per second etc. 
Similarly with Qt gears examples in the opengl examples section of the 
qt3-examples package.

I would like to take advantage of the (!expensive) cards memory and pipeline 
for vtk/opengl (thats why i bought it! not for games :) ). What can i do to 
set it up???

Thanks!
Mitchell


From mathieu.malaterre at kitware.com  Sun Oct 17 16:08:06 2004
From: mathieu.malaterre at kitware.com (Mathieu Malaterre)
Date: Sun, 17 Oct 2004 16:08:06 -0400
Subject: [vtkusers] Re: Re: once Again....because i didnt get reply the first
Message-ID: <20041017200806.OCIB14657.fep03.biz.rr.com@[127.0.0.1]>

p3rdigao,

   You should really start using google or the search engine at the top of vtk.org webpage, to search for question like this. The recommended way is to use cmake to handle everything for you, for instance here are some typical cmakelists.txt you may want to use for your project (*). VC6 might be easy to learn for basic usage, but you'll enter in very difficult problems that cmake handle for you, thus you'll have more time to spent on the intersting side (your real project) compare to some linking/compilation options.

HTH
Mathieu
http://vtk.org/pipermail/vtkusers/2004-September/076557.html
http://vtk.org/pipermail/vtkusers/2003-October/070298.html


> 
> From: "p3rdigao" <p3rdigao at netcabo.pt>
> Date: 2004/10/17 Sun PM 01:37:32 EDT
> To: "Mathieu Malaterre" <mathieu.malaterre at kitware.com>
> CC: <vtkusers at vtk.org>
> Subject: Re: once Again....because i didnt get reply the first
> 
>  
> I include d:\vtk\IO in the include files.
> 
> How do I link vtkIO ? It is not the way above?
> 
> Or is missing include IO binary dirs of VTKBin?....in the include files also or elsewhere?
> 
>  
> 
> Thanks for your attention
> 
> Regards 
> 
> p3
> 
>  
> 
> > p3rdigao,
> 
> > I bet you didn't link againt vtkIO (where vtkDataSetReader is defined), so the linker can not find the symbol.
> 
> > HTH
> 
> > Mathieu
> 
>  
>  
>  
> 




From mathieu.malaterre at kitware.com  Sun Oct 17 16:14:23 2004
From: mathieu.malaterre at kitware.com (Mathieu Malaterre)
Date: Sun, 17 Oct 2004 16:14:23 -0400
Subject: [vtkusers] mac osx error compilation
Message-ID: <20041017201423.OCKH14657.fep03.biz.rr.com@[127.0.0.1]>

Salut Gaston,

   I believe this question has been answered many times in the mailing list :

http://vtk.org/pipermail/vtkusers/2004-August/076068.html

HTH
Mathieu, de chez Smith en face


> 
> From: Mr Gaffe <lagaffe74130 at yahoo.fr>
> Date: 2004/10/17 Sun PM 02:10:55 EDT
> To: vtk mailing list <vtkusers at vtk.org>
> Subject: [vtkusers] mac osx error compilation
> 
> hello,
> I can' compile VTK 4.2 under mac os x 10.3 with gcc 3.3 and cmake 2.0.3:
>  
> ERROR:
> Building executable /Users/arg/Projects/VTK/bin/GraphicsCxxTests...
> ld: /Users/arg/Projects/VTK/binlibvtk.png.a(png.o) illegal reference to symbol: _crc32 defined in indirectly referenced dynamic library /usr/lib/libz.1.dy lib
>  
> any idea ?
> thanks,
> Lagaffe
>  
> 
> 		
> ---------------------------------
> Cr?ez gratuitement votre Yahoo! Mail avec 100 Mo de stockage !
> Cr?ez votre Yahoo! Mail
> 
> Le nouveau Yahoo! Messenger est arriv? ! D?couvrez toutes les nouveaut?s pour dialoguer instantan?ment avec vos amis.T?l?chargez GRATUITEMENT ici !
> _______________________________________________
> This is the private VTK discussion list. 
> Please keep messages on-topic. Check the FAQ at: <http://public.kitware.com/cgi-bin/vtkfaq>
> Follow this link to subscribe/unsubscribe:
> http://www.vtk.org/mailman/listinfo/vtkusers
> 
> 
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From mathieu.malaterre at kitware.com  Sun Oct 17 16:19:56 2004
From: mathieu.malaterre at kitware.com (Mathieu Malaterre)
Date: Sun, 17 Oct 2004 16:19:56 -0400
Subject: [vtkusers] problem with vtk on linux (debian) with opengl libs
	from
Message-ID: <20041017201956.OCNC14657.fep03.biz.rr.com@[127.0.0.1]>

Mitchell,

   We have also problems here with ATI cards, the driver is maybe not as robust as some concurrent on the linux plateform.

   Anyway you should at least have something on the screen. How did you install your ATI driver on your debian system ? I used (require more tweaks but seems more reliable):

  http://www.watchland.org/dmcgraw/ati-debian.html

  also I wasn't able to use the one from :

http://xoomer.virgilio.it/flavio.stanchina/debian/fglrx-installer.html

  You should also be able to swith from one to the other using LD_PRELOAD (either libGL from Mesa, or the ATI one). Be sure to recompile ATI driver properly to match your kernel, if it still fails, I'll send you my XFree86 config file.

HTH
Mathieu


> 
> Hi,
> 
> I am working with vtk on 2 different systems. Both are running debian linux 
> sid. 
> 
> I installed the debian vtk packages on both machines. On the cheapo standard 
> video card (using the mesa opengl libraries i guess) machine, the vtk 
> packages work fine. the tutorial examples work with both python and c++ 
> versions.
> 
> On the second machine  I  installed a ati radeon 9800xt video card with the 
> proprietary ati opengl packages. This is giving me trouble.
> 
> The programs compile fine however when i run the tutorial programs i get 
> nonsense images (random coloured flickering pixels instead of the "nice 
> rotating cones" of the tutorial).  
> 
> I abandoned the debian vtk precompiled binaries and  then downloaded and 
> compiled and installed the latest release version of the vtk kit (although i 
> had it on both disks from both the textbook and users guide it was easier to 
> download...) as well as the data etc. I compiled and set the environmental 
> variables to point to the local install /home/mlaks/VTK, and nonetheless 
> still get the same effect - nothing more than flickering pixels. No 
> Cones!!!!
> 
> Note that the card works fine with the gears examples from ati and the fxgl 
> variant gears examples that ati provides. 600+ frames per second etc. 
> Similarly with Qt gears examples in the opengl examples section of the 
> qt3-examples package.
> 
> I would like to take advantage of the (!expensive) cards memory and pipeline 
> for vtk/opengl (thats why i bought it! not for games :) ). What can i do to 
> set it up???
> 
> Thanks!
> Mitchell
> _______________________________________________
> This is the private VTK discussion list. 
> Please keep messages on-topic. Check the FAQ at: <http://public.kitware.com/cgi-bin/vtkfaq>
> Follow this link to subscribe/unsubscribe:
> http://www.vtk.org/mailman/listinfo/vtkusers
> 




From p3rdigao at netcabo.pt  Sun Oct 17 16:43:34 2004
From: p3rdigao at netcabo.pt (p3rdigao)
Date: Sun, 17 Oct 2004 21:43:34 +0100
Subject: [vtkusers] (no subject)
Message-ID: <F60ADD7EC4769848922D798EBE8DD8E904AAD656@VS2.hdi.tvcabo>

Thanks....

Exactly....this is the SOLUTION....Thanks a lot!

Many Thanks....really.

Regards 

P3

 

>For setting up visual studios, you might want to check out this old post on this mailing list:

>http://public.kitware.com/pipermail/vtkusers/2002-October/063590.html <http://public.kitware.com/pipermail/vtkusers/2002-October/063590.html> 

>regards,

>-chris



From zfjgo at 126.com  Sun Oct 17 20:54:44 2004
From: zfjgo at 126.com (=?gb2312?B?emZqZ28=?=)
Date: Mon, 18 Oct 2004 08:54:44 +0800 (CST)
Subject: [vtkusers] How to update the *.h?
Message-ID: <41731454.00005F.04830@m61.126.com>



Now I am using vtk 4.0,but I find a new version of vtkRenderWindow, I want to implement the function SetCurrentCursor().Only to add the new vtkRenderWindow.h to replace the old one is useless,and many errors appear.
How to do?
Thanks a lot.
God bless you!



-----------------------------------------------------------
??126????????????????????http://www.126.com/
??????????260???12?????????????????

From mlaks at verizon.net  Sun Oct 17 22:00:55 2004
From: mlaks at verizon.net (Meshulum Laks)
Date: Sun, 17 Oct 2004 22:00:55 -0400
Subject: [vtkusers] problem with vtk on linux (debian) with opengl libs
	from
In-Reply-To: <20041017201956.OCNC14657.fep03.biz.rr.com@[127.0.0.1]>
References: <20041017201956.OCNC14657.fep03.biz.rr.com@[127.0.0.1]>
Message-ID: <200410172200.55739.mlaks@verizon.net>

On Sunday 17 October 2004 04:19 pm, you wrote:
> Mitchell,
>
>    We have also problems here with ATI cards, the driver is maybe not as
> robust as some concurrent on the linux plateform.

Oy

>
>    Anyway you should at least have something on the screen. How did you
> install your ATI driver on your debian system ? I used (require more tweaks
> but seems more reliable):
Guess what. I  used the second method you mentioned below 
http://xoomer.virgilio.it/flavio.stanchina/debian/fglrx-installer.html
>
>   http://www.watchland.org/dmcgraw/ati-debian.html

i see  your method seems much easier. 
>
>   also I wasn't able to use the one from :
>
> http://xoomer.virgilio.it/flavio.stanchina/debian/fglrx-installer.html

Funny is that it seems to work fine for the fglrx-gears and for opengl 
applications for Qt. It just doesn't work at all for the vtk applications. 
All I get is random pixel colors in the renderwindow that opens.

>
>   You should also be able to swith from one to the other using LD_PRELOAD
> (either libGL from Mesa, or the ATI one). Be sure to recompile ATI driver
> properly to match your kernel, if it still fails, I'll send you my XFree86
> config file.

Is there an easy way of removing all the stuff i did under the other 
instructions, or should i just reinstall debian. (I am getting good at that). 
I will try to just remove the different debs i   created and installed under 
the other method, and proceed from there....

I also didnt understand the LD_PRELOAD concept, if you could give a little 
more detail. I guess that the xfree86-4 config file will also be helpful.
thanks
mitchell laks

>
> HTH
> Mathieu
>
> > Hi,
> >
> > I am working with vtk on 2 different systems. Both are running debian
> > linux sid.
> >
> > I installed the debian vtk packages on both machines. On the cheapo
> > standard video card (using the mesa opengl libraries i guess) machine,
> > the vtk packages work fine. the tutorial examples work with both python
> > and c++ versions.
> >
> > On the second machine  I  installed a ati radeon 9800xt video card with
> > the proprietary ati opengl packages. This is giving me trouble.
> >
> > The programs compile fine however when i run the tutorial programs i get
> > nonsense images (random coloured flickering pixels instead of the "nice
> > rotating cones" of the tutorial).
> >
> > I abandoned the debian vtk precompiled binaries and  then downloaded and
> > compiled and installed the latest release version of the vtk kit
> > (although i had it on both disks from both the textbook and users guide
> > it was easier to download...) as well as the data etc. I compiled and set
> > the environmental variables to point to the local install
> > /home/mlaks/VTK, and nonetheless still get the same effect - nothing more
> > than flickering pixels. No Cones!!!!
> >
> > Note that the card works fine with the gears examples from ati and the
> > fxgl variant gears examples that ati provides. 600+ frames per second
> > etc. Similarly with Qt gears examples in the opengl examples section of
> > the qt3-examples package.
> >
> > I would like to take advantage of the (!expensive) cards memory and
> > pipeline for vtk/opengl (thats why i bought it! not for games :) ). What
> > can i do to set it up???
> >
> > Thanks!
> > Mitchell
> > _______________________________________________
> > This is the private VTK discussion list.
> > Please keep messages on-topic. Check the FAQ at:
> > <http://public.kitware.com/cgi-bin/vtkfaq> Follow this link to
> > subscribe/unsubscribe:
> > http://www.vtk.org/mailman/listinfo/vtkusers


From mlaks at verizon.net  Sun Oct 17 22:39:27 2004
From: mlaks at verizon.net (Meshulum Laks)
Date: Sun, 17 Oct 2004 22:39:27 -0400
Subject: [vtkusers] problem with vtk on linux (debian) with opengl libs
	from
In-Reply-To: <20041017201956.OCNC14657.fep03.biz.rr.com@[127.0.0.1]>
References: <20041017201956.OCNC14657.fep03.biz.rr.com@[127.0.0.1]>
Message-ID: <200410172239.27169.mlaks@verizon.net>

Dear Mathieu,
I removed all the debs that i added with the other 
( http://xoomer.virgilio.it/flavio.stanchina/debian/fglrx-installer.html) 
approach.
>   http://www.watchland.org/dmcgraw/ati-debian.html

I read this. I went through the steps. It says download the  doesn't mention 
what to do with the ati rpm package.
http://www2.ati.com/drivers/linux/fglrx-4.3.0-3.7.6.i386.rpm
I downloaded  fglrx-4.3.0-3.14.1.i386.rpm
 I converted it to a deb with alien, but when i attempted to install it with 
dpkg -i I got an error message . it would not install cause it tried to 
overwrite  /usr/X11R6/lib/libGL.so.1.2 which is also in package xlibmesa-gl

What do I do about that?
>
>   also I wasn't able to use the one from :

Mitchell


From mlaks at verizon.net  Mon Oct 18 00:40:23 2004
From: mlaks at verizon.net (Meshulum Laks)
Date: Mon, 18 Oct 2004 00:40:23 -0400
Subject: [vtkusers] problem with vtk on linux (debian) with opengl libs
	from
In-Reply-To: <20041018030621.RYCN9098.fep02.biz.rr.com@[127.0.0.1]>
References: <20041018030621.RYCN9098.fep02.biz.rr.com@[127.0.0.1]>
Message-ID: <200410180040.23979.mlaks@verizon.net>

On Sunday 17 October 2004 11:06 pm, you wrote:
> Just remove the mesa package you don't want it anyway.
No problem. I removed it (apt-get remove xlibmesa-gl)
and it removed all of my kde stuff (hey I am easy!!)

Then I went through the install of the drivers according to plan.
I reused my XF86Config-4 .
Then I did 
apt-get install kde

of course it bombed on 
kscreensaver
xbase-clients
xlibmesa-glu

and it wont install kdegraphics kdemultimedia kdenetwork kdeutils kdepim and 
quanta.
Shall I make a backup copy of the good libGL.so 
(/usr/X11R6/lib/libGL.so.1.2 ), 
then do a apt-get -f install to  overwrite it (temporarily),
and then sneakily copy it back over the copy that comes from xlibmesa-glu?
(I have not tricked with the debian install before)
Mitchell


> > xlibmesa-gl
> >
> > What do I do about that?
> >
> > >   also I wasn't able to use the one from :
> >
> > Mitchell


From mlaks at verizon.net  Mon Oct 18 01:11:38 2004
From: mlaks at verizon.net (Meshulum Laks)
Date: Mon, 18 Oct 2004 01:11:38 -0400
Subject: [vtkusers] problem with vtk on linux (debian) with opengl libs
	from
In-Reply-To: <200410180040.23979.mlaks@verizon.net>
References: <20041018030621.RYCN9098.fep02.biz.rr.com@[127.0.0.1]>
	<200410180040.23979.mlaks@verizon.net>
Message-ID: <200410180111.38074.mlaks@verizon.net>

On Monday 18 October 2004 12:40 am, Mitchell Laks wrote:

To sum up.
I converted to using the drivers acording to the method of 
  http://www.watchland.org/dmcgraw/ati-debian.html
I left my kde in a broken state ( ie I  postponed playing around with 
xlibmesa-glu),
and then i went into my /home/mlaks/VTK directory
and when i ran make I get an error
no rule to make /usr/lib/libGL.so needed 
by /home/mlaks/VTK/bin/libvtkRendering.so Stop.
And indeed I don't see a libGL.so in the dpkg -L fglrx, 
however there is a 
/usr/X11R6/lib/libGL.so.1.2 preseent so  I did a
ln -s  /usr/X11R6/lib/libGL.so.1.2        /usr/lib/libGL.so
Now I ran make in the VTK directory.
and I deleted the executables and object files in 
Examples/Tutorial/Step1/Cxx and ran make there too.

and unfortunately I still get the sad sad non working 
non Cone Cone. Still get defective flickering of pixels in the 
renderwindow.

I really appreciate all of your help to bring me to this point!!!!!
Mitchell


From mlaks at verizon.net  Mon Oct 18 01:31:23 2004
From: mlaks at verizon.net (Meshulum Laks)
Date: Mon, 18 Oct 2004 01:31:23 -0400
Subject: [vtkusers] problem with vtk on linux (debian) with opengl libs
	from
In-Reply-To: <200410180111.38074.mlaks@verizon.net>
References: <20041018030621.RYCN9098.fep02.biz.rr.com@[127.0.0.1]>
	<200410180040.23979.mlaks@verizon.net>
	<200410180111.38074.mlaks@verizon.net>
Message-ID: <200410180131.23668.mlaks@verizon.net>

One additional point
I mention also that I clearly again have a satisfactory install of opengl for 
the ati radeon driver
as when i run the application
fgl_glxgears that was installed by the fglrx deb
it again runs with speeds of 600frames/persecond

It seems to be a problem with running vtk via these drivers itself

is there a viable alternative, and what have others done...
also how to trick debian apt to deal with this kind of shared library conflict 
in /usr/X11R6/lib/libGL.so.1.2 etc
so that i can get my kde back?

darn!
Mitchell 


From sscomp2004 at yahoo.com.au  Mon Oct 18 01:37:02 2004
From: sscomp2004 at yahoo.com.au (s comp)
Date: Mon, 18 Oct 2004 15:37:02 +1000 (EST)
Subject: [vtkusers] How to rename an object using tcl?
Message-ID: <20041018053702.44225.qmail@web61106.mail.yahoo.com>

Hi all,
 
I am creating several unstructured grid objects with the one tcl script, and I want to process them all in the same way but not all at the same time, (so I will run the script once to look at one, and then again to look at another). Now of course all the unstructured grids have different names, but I would like to rename the one I am interested in for a particular run, so I don't have to change all the names in the several pipelines take it as input. I am not familiar with tcl so I am sure there is a simple answer to this question. Also how can I be sure that I am just creating a new pointer to the same object and not creating a new copy of it?
 
Thanks,
 
Sonam



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From sscomp2004 at yahoo.com.au  Mon Oct 18 01:40:36 2004
From: sscomp2004 at yahoo.com.au (s comp)
Date: Mon, 18 Oct 2004 15:40:36 +1000 (EST)
Subject: [vtkusers] Best guide/reference for learning essential basics of
	TCL in 1 hour or less?
Message-ID: <20041018054036.90006.qmail@web61102.mail.yahoo.com>

What is the best guide/reference for learning the essential basics of TCL in 1 hour or less, for a user of VTK?
 
Thanks,
 
Sonam



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From shijith at ddd.co.jp  Mon Oct 18 02:10:29 2004
From: shijith at ddd.co.jp (shijith)
Date: Mon, 18 Oct 2004 15:10:29 +0900
Subject: [vtkusers] How to capture mouse events in VTK
In-Reply-To: <20041018020024.60EA23045F@public.kitware.com>
Message-ID: <LGEEICMBGMOGCJKAGDHLEEBOCAAA.shijith@ddd.co.jp>

Hi,
I am new to VTK and trying to develop an application in MFC.
Can any one tell me how to handle the events like mouse move, left
buttondown in VTK?
any help would be appreciated.
Thanks,
shijith





From ursula.goette at philips.com  Mon Oct 18 02:27:04 2004
From: ursula.goette at philips.com (ursula.goette at philips.com)
Date: Mon, 18 Oct 2004 08:27:04 +0200
Subject: [vtkusers] Version 5.0 - Roadmap
Message-ID: <OF19504D15.27860AD3-ONC1256F31.0023288E-C1256F31.00236249@philips.com>





Hi all,

I do have a more general question about the roadmap that is statet
in the FAQ "What changes are being considered for VTK?"

What has happened to the plan of release version 5. 0 at the end of
August 2004?

Will there be a major release of VTK this year?

Ursula



From daniel.sidobre at laas.fr  Mon Oct 18 02:38:24 2004
From: daniel.sidobre at laas.fr (Daniel Sidobre)
Date: Mon, 18 Oct 2004 08:38:24 +0200
Subject: [vtkusers] Best guide/reference for learning essential basics of
	TCL in 1 hour or less?
In-Reply-To: <20041018054036.90006.qmail@web61102.mail.yahoo.com>
References: <20041018054036.90006.qmail@web61102.mail.yahoo.com>
Message-ID: <16755.25824.219761.729144@laas.fr>


 > What is the best guide/reference for learning the essential basics of TCL in 1 hour or less, for a user of VTK?
 >  
 > Thanks,
 >  
 > Sonam
 > 

 Hi,

 I think you have to tell us more if you want good advice... As you
 give no ideas on your knowledge I suppose you can choose yourself
 some "beginning Tcl" or "Tcl tutorial" on the Tcl wiki :
 http://wiki.tcl.tk/references/3122!
 
   Daniel.


From sscomp2004 at yahoo.com.au  Mon Oct 18 02:57:42 2004
From: sscomp2004 at yahoo.com.au (s comp)
Date: Mon, 18 Oct 2004 16:57:42 +1000 (EST)
Subject: [vtkusers] Best guide/reference for learning essential basics of
	TCL in 1 hour or less?
In-Reply-To: <16755.25824.219761.729144@laas.fr>
Message-ID: <20041018065742.61561.qmail@web61106.mail.yahoo.com>

Okay, well I am a programmer but have no knowledge of tcl, except from what I have learned from following some of the VTK Tcl examples.
 
Thanks for the link,

Daniel Sidobre <daniel.sidobre at laas.fr> wrote:

> What is the best guide/reference for learning the essential basics of TCL in 1 hour or less, for a user of VTK?
> 
> Thanks,
> 
> Sonam
> 

Hi,

I think you have to tell us more if you want good advice... As you
give no ideas on your knowledge I suppose you can choose yourself
some "beginning Tcl" or "Tcl tutorial" on the Tcl wiki :
http://wiki.tcl.tk/references/3122!

Daniel.



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From I.deBoer at polytec.de  Mon Oct 18 03:33:13 2004
From: I.deBoer at polytec.de (de Boer Ingo)
Date: Mon, 18 Oct 2004 09:33:13 +0200
Subject: [vtkusers] How to capture mouse events in VTK
Message-ID: <1484AEC8AB498A4EB64D4A8137D23FD90145005D@02polywbr.waldbronn.polytec.de>

Hi,

you just have to redirect the messages to VTK in the WinProc
function. Look at the MFC samples which come along with VTK.

greets
  Ingo


---
Dr.-Ing. Ingo H. de Boer

Polytec GmbH
Polytec-Platz 1-7, 76337 Waldbronn, Germany
phone: ++49 7243 604 106
fax  : ++49 7243 604 255
 
> Hi,
> I am new to VTK and trying to develop an application in MFC.
> Can any one tell me how to handle the events like mouse move, left
> buttondown in VTK?
> any help would be appreciated.
> Thanks,
> shijith
> 


From shijith at ddd.co.jp  Mon Oct 18 04:43:05 2004
From: shijith at ddd.co.jp (shijith)
Date: Mon, 18 Oct 2004 17:43:05 +0900
Subject: [vtkusers] How to capture mouse events in VTK
In-Reply-To: <1484AEC8AB498A4EB64D4A8137D23FD90145005D@02polywbr.waldbronn.polytec.de>
Message-ID: <LGEEICMBGMOGCJKAGDHLOEBOCAAA.shijith@ddd.co.jp>

Hi Ingo,
Thanks for your reply.
I have found an MFC example (vtkMDI).
but while on lbuttondown, it doesnt go into 'case WM_LBUTTONDOWN:' of
winproc function.
do i miss something?
Thanks in advance.
shijith

-----Original Message-----
From: de Boer Ingo [mailto:I.deBoer at polytec.de]
Sent: Monday, October 18, 2004 4:33 PM
To: shijith; vtkusers at vtk.org
Subject: RE: [vtkusers] How to capture mouse events in VTK


Hi,

you just have to redirect the messages to VTK in the WinProc
function. Look at the MFC samples which come along with VTK.

greets
  Ingo


---
Dr.-Ing. Ingo H. de Boer

Polytec GmbH
Polytec-Platz 1-7, 76337 Waldbronn, Germany
phone: ++49 7243 604 106
fax  : ++49 7243 604 255

> Hi,
> I am new to VTK and trying to develop an application in MFC.
> Can any one tell me how to handle the events like mouse move, left
> buttondown in VTK?
> any help would be appreciated.
> Thanks,
> shijith
>





From I.deBoer at polytec.de  Mon Oct 18 04:51:15 2004
From: I.deBoer at polytec.de (de Boer Ingo)
Date: Mon, 18 Oct 2004 10:51:15 +0200
Subject: [vtkusers] How to capture mouse events in VTK
Message-ID: <1484AEC8AB498A4EB64D4A8137D23FD90145005F@02polywbr.waldbronn.polytec.de>

Look at the view class:

LRESULT CvtkMDIView::WindowProc(UINT message, WPARAM wParam, LPARAM lParam)
{
	switch (message)
	{
		case WM_LBUTTONDOWN: 
		case WM_LBUTTONUP: 
		case WM_MBUTTONDOWN: 
		case WM_MBUTTONUP: 
		case WM_RBUTTONDOWN: 
		case WM_RBUTTONUP: 
		case WM_MOUSEMOVE:
		case WM_CHAR:
		case WM_TIMER:
		if (this->pvtkWin32RenderWI->GetInitialized())
		{
			return vtkHandleMessage2(this->GetSafeHwnd(), message, wParam, lParam, this->pvtkWin32RenderWI);
		}
		break;
	}

	return CView::WindowProc(message, wParam, lParam);
}

This does it all...
I don't know, what is wrong? This works...
Did you set a breakpoint to check it ?

greets
 Ingo


---
Dr.-Ing. Ingo H. de Boer

Polytec GmbH
Polytec-Platz 1-7, 76337 Waldbronn, Germany
phone: ++49 7243 604 106
fax  : ++49 7243 604 255
 
> 
> Hi Ingo,
> Thanks for your reply.
> I have found an MFC example (vtkMDI).
> but while on lbuttondown, it doesnt go into 'case WM_LBUTTONDOWN:' of
> winproc function.
> do i miss something?
> Thanks in advance.
> shijith


From shijith at ddd.co.jp  Mon Oct 18 06:49:21 2004
From: shijith at ddd.co.jp (shijith)
Date: Mon, 18 Oct 2004 19:49:21 +0900
Subject: [vtkusers] How to capture mouse events in VTK
In-Reply-To: <1484AEC8AB498A4EB64D4A8137D23FD90145005F@02polywbr.waldbronn.polytec.de>
Message-ID: <LGEEICMBGMOGCJKAGDHLOECACAAA.shijith@ddd.co.jp>

Hi Ingo,
Thanks again.
the code is same in the Windproc()as .
i put break point and checked..it doent enter in to it..

but when i tranlated message from PreTralateMessage(), it enters into
it!!!.. what i did is
something like this...

BOOL CVtkMDIView::PreTranslateMessage(MSG* pMsg)
{
	if(pMsg->message ==WM_LBUTTONDOWN)
	{
		SendMessage(pMsg->message,pMsg->wParam,pMsg->lParam);
		return TRUE;
	}

	return CView::PreTranslateMessage(pMsg);
}

i donno why it was not entering initially...
anyway its ok for the time being.
Thanks a lot.
shijith.


-----Original Message-----
From: de Boer Ingo [mailto:I.deBoer at polytec.de]
Sent: Monday, October 18, 2004 5:51 PM
To: shijith; vtkusers at vtk.org
Subject: RE: [vtkusers] How to capture mouse events in VTK


Look at the view class:

LRESULT CvtkMDIView::WindowProc(UINT message, WPARAM wParam, LPARAM lParam)
{
	switch (message)
	{
		case WM_LBUTTONDOWN:
		case WM_LBUTTONUP:
		case WM_MBUTTONDOWN:
		case WM_MBUTTONUP:
		case WM_RBUTTONDOWN:
		case WM_RBUTTONUP:
		case WM_MOUSEMOVE:
		case WM_CHAR:
		case WM_TIMER:
		if (this->pvtkWin32RenderWI->GetInitialized())
		{
			return vtkHandleMessage2(this->GetSafeHwnd(), message, wParam, lParam,
this->pvtkWin32RenderWI);
		}
		break;
	}

	return CView::WindowProc(message, wParam, lParam);
}

This does it all...
I don't know, what is wrong? This works...
Did you set a breakpoint to check it ?

greets
 Ingo


---
Dr.-Ing. Ingo H. de Boer

Polytec GmbH
Polytec-Platz 1-7, 76337 Waldbronn, Germany
phone: ++49 7243 604 106
fax  : ++49 7243 604 255

>
> Hi Ingo,
> Thanks for your reply.
> I have found an MFC example (vtkMDI).
> but while on lbuttondown, it doesnt go into 'case WM_LBUTTONDOWN:' of
> winproc function.
> do i miss something?
> Thanks in advance.
> shijith





From sscomp2004 at yahoo.com.au  Mon Oct 18 07:59:34 2004
From: sscomp2004 at yahoo.com.au (s comp)
Date: Mon, 18 Oct 2004 21:59:34 +1000 (EST)
Subject: [vtkusers] How to use more than one set of scalar (or other) data
	from a dataset?
Message-ID: <20041018115934.57007.qmail@web61101.mail.yahoo.com>


How, for example, do I contour 2 different scalar fields from the one data set at the same time?

The obvious way of using SetScalarsName once creating a contour, and then using SetScalarsName again to change the scalar field, and creating another contour does not work - both contours are of the same scalar field.

I guess once I have that question answered my other questions will be answered too, but in case not:

How do I choose which scalar field to colour objects with?

and so on.

Thanks in advance,

Sonam




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From jak4.scr at gmx.net  Mon Oct 18 09:54:23 2004
From: jak4.scr at gmx.net (=?ISO-8859-1?Q?=22Johannes_K=E4fer=22?=)
Date: Mon, 18 Oct 2004 15:54:23 +0200 (MEST)
Subject: [vtkusers] Multiple Actors for Volume Rendering
References: <24158.1097861920@www27.gmx.net>
Message-ID: <24422.1098107663@www11.gmx.net>

Well I figured out how to solve problem a). I just had to activate the
Sorter for the culler as mentioned in this post:
http://public.kitware.com/pipermail/vtkusers/2002-November/064096.html.

Anyway I still don't know how to stop the Raycasting when I enter a new
Actor (see point b below). Any help would be more than welcome.

Johannes


> Hi,
> 
> I'm currently trying to render two or more Volumes in with one renderer.
> Unfortunatly there are 2 problems:
>   a) when I use the vtkVolumeRayCastMapper (with
> vtkVolumeRayCastCompositeFunction) one actor is always in front while the
> other is always behind it (no matter how I rotate them). This doesn't
> happen
> with the vtkVolumeTextureMapper2D.
>   b) I want the raycasting to stop if we pass from the first actor
> (volume)
> into the next one. Apparently this is somehow done by the
> vtkVolumeTextureMapper2D (somehow because from the "front" i can't see the
> actor (actor2) behind actor1 which is what I want, but after rotating
> until
> actor2 is in front I can see actor1). The other problem is that because
> the
> actors are very close to each other the bounding box of actor1 cuts into
> the
> bounding box of actor2.
> 
> In short: I want to volume render two or more actors but don't I don't
> want
> to be able to see actors lying behind a actor. How can I accomplish this?
> 
> Thank you for your time and input.
> 
> Regards
>   Johannes
> 
> PS: Searched the vtk-users-mailing list but didn't find anything
> appropriate.
> 
> -- 
> GMX ProMail mit bestem Virenschutz http://www.gmx.net/de/go/mail
> +++ Empfehlung der Redaktion +++ Internet Professionell 10/04 +++
> 
> _______________________________________________
> This is the private VTK discussion list. 
> Please keep messages on-topic. Check the FAQ at:
> <http://public.kitware.com/cgi-bin/vtkfaq>
> Follow this link to subscribe/unsubscribe:
> http://www.vtk.org/mailman/listinfo/vtkusers
> 

-- 
+++ GMX DSL Premiumtarife 3 Monate gratis* + WLAN-Router 0,- EUR* +++
Clevere DSL-Nutzer wechseln jetzt zu GMX: http://www.gmx.net/de/go/dsl



From tfogal at apollo.sr.unh.edu  Mon Oct 18 09:55:42 2004
From: tfogal at apollo.sr.unh.edu (tom fogal)
Date: Mon, 18 Oct 2004 09:55:42 -0400
Subject: [vtkusers] How to use more than one set of scalar (or other) data
	from a dataset? 
In-Reply-To: Your message of "Mon, 18 Oct 2004 21:59:34 +1000."
	<20041018115934.57007.qmail@web61101.mail.yahoo.com> 
References: <20041018115934.57007.qmail@web61101.mail.yahoo.com> 
Message-ID: <200410181355.i9IDtgiq027133@apollo.sr.unh.edu>

 <20041018115934.57007.qmail at web61101.mail.yahoo.com>s comp writes:
>How, for example, do I contour 2 different scalar fields from the one data set
> at the same time?
>
>The obvious way of using SetScalarsName once creating a contour, and then usin
>g SetScalarsName again to change the scalar field, and creating another contou
>r does not work - both contours are of the same scalar field.

Try 'SetActiveScalars(char*)'. The string it takes is the name given to
the scalars via AddArray() and SetArray() [which both use the name of
the vtk<X>Array which is passed into it].
These methods are off of vtkPointData or one of its parents, I believe.
For example, for a rectilinear grid (at least) I would do:

Grid->GetPointData()->SetActiveScalars("data1");
[ . . . generate contour . . .]
Grid->GetPointData()->SetActiveScalars("data2");
[ . . . generate contour . . .]

HTH,

-tom

<snip>


From berklist at nycap.rr.com  Mon Oct 18 10:05:43 2004
From: berklist at nycap.rr.com (Berk Geveci)
Date: Mon, 18 Oct 2004 10:05:43 -0400
Subject: [vtkusers] Maybe a silly question, but what is an ivar?
In-Reply-To: <20041015064236.8550.qmail@web61104.mail.yahoo.com>
References: <20041015064236.8550.qmail@web61104.mail.yahoo.com>
Message-ID: <1098108342.9313.1.camel@silverymoon>

ivar stands for instance variable.

On Fri, 2004-10-15 at 02:42, s comp wrote:
> The documentation keeps mentioning ivar's, what are these, from what I
> can gather, I think it stands for integer variable...?
>  
> Thanks
> 
> 
> 
> ______________________________________________________________________
> Find local movie times and trailers on Yahoo! Movies.
> 
> 
> ______________________________________________________________________
> _______________________________________________
> This is the private VTK discussion list. 
> Please keep messages on-topic. Check the FAQ at: <http://public.kitware.com/cgi-bin/vtkfaq>
> Follow this link to subscribe/unsubscribe:
> http://www.vtk.org/mailman/listinfo/vtkusers
-- 
Berk Geveci <berklist at nycap.rr.com>



From mathieu.malaterre at kitware.com  Mon Oct 18 10:10:06 2004
From: mathieu.malaterre at kitware.com (Mathieu Malaterre)
Date: Mon, 18 Oct 2004 10:10:06 -0400
Subject: [vtkusers] problem with vtk on linux (debian) with opengl libs
	from
In-Reply-To: <200410180131.23668.mlaks@verizon.net>
References: <20041018030621.RYCN9098.fep02.biz.rr.com@[127.0.0.1]>
	<200410180040.23979.mlaks@verizon.net>
	<200410180111.38074.mlaks@verizon.net>
	<200410180131.23668.mlaks@verizon.net>
Message-ID: <4173CEBE.1020601@kitware.com>

Meshulum Laks wrote:
> One additional point
> I mention also that I clearly again have a satisfactory install of opengl for 
> the ati radeon driver
> as when i run the application
> fgl_glxgears that was installed by the fglrx deb
> it again runs with speeds of 600frames/persecond
> 
> It seems to be a problem with running vtk via these drivers itself
> 
> is there a viable alternative, and what have others done...
> also how to trick debian apt to deal with this kind of shared library conflict 
> in /usr/X11R6/lib/libGL.so.1.2 etc
> so that i can get my kde back?

Mitchell,

	Ok I reread the instructions on:

http://www.watchland.org/dmcgraw/ati-debian.html

	I think you should use alien to convert to tgz, extract at top level 
'/', then go to /lib/modules/fglrx/build_mod ...

HTH,
Mathieu
Ps: avoid aving multiple libGL in different directory, it just doesn't 
make sense. Also if you used libGL.a at some point I'd suggest you 
remove all your binaries, 'make clean' if you are paranoid.




From I.deBoer at polytec.de  Mon Oct 18 10:44:07 2004
From: I.deBoer at polytec.de (de Boer Ingo)
Date: Mon, 18 Oct 2004 16:44:07 +0200
Subject: [vtkusers] Version 5.0 - Roadmap
Message-ID: <1484AEC8AB498A4EB64D4A8137D23FD901450060@02polywbr.waldbronn.polytec.de>

Hi,

I asked that also... some weeks ago... without getting
any answer...

anybody on this one ?

greets
  Ingo


---
Dr.-Ing. Ingo H. de Boer

Polytec GmbH
Polytec-Platz 1-7, 76337 Waldbronn, Germany
phone: ++49 7243 604 106
fax  : ++49 7243 604 255
 

> I do have a more general question about the roadmap that is statet
> in the FAQ "What changes are being considered for VTK?"
> 
> What has happened to the plan of release version 5. 0 at the end of
> August 2004?
> 
> Will there be a major release of VTK this year?
> 


From goodwin.lawlor at ucd.ie  Mon Oct 18 11:23:28 2004
From: goodwin.lawlor at ucd.ie (Goodwin Lawlor)
Date: Mon, 18 Oct 2004 16:23:28 +0100
Subject: [vtkusers] Re: Version 5.0 - Roadmap
References: <1484AEC8AB498A4EB64D4A8137D23FD901450060@02polywbr.waldbronn.polytec.de>
Message-ID: <cl0n5e$l1b$1@sea.gmane.org>

To quote Ken Martin from the developer list on 8th October:

"VTK 5.0 will still be a couple months off so that the new pipeline has some
time to mature etc."

hth

Goodwin


"de Boer Ingo" <I.deBoer at polytec.de> wrote in message
news:1484AEC8AB498A4EB64D4A8137D23FD901450060 at 02polywbr.waldbronn.polytec.de...
Hi,

I asked that also... some weeks ago... without getting
any answer...

anybody on this one ?

greets
  Ingo


---
Dr.-Ing. Ingo H. de Boer

Polytec GmbH
Polytec-Platz 1-7, 76337 Waldbronn, Germany
phone: ++49 7243 604 106
fax  : ++49 7243 604 255


> I do have a more general question about the roadmap that is statet
> in the FAQ "What changes are being considered for VTK?"
>
> What has happened to the plan of release version 5. 0 at the end of
> August 2004?
>
> Will there be a major release of VTK this year?
>
_______________________________________________
This is the private VTK discussion list.
Please keep messages on-topic. Check the FAQ at:
<http://public.kitware.com/cgi-bin/vtkfaq>
Follow this link to subscribe/unsubscribe:
http://www.vtk.org/mailman/listinfo/vtkusers





From sscomp2004 at yahoo.com.au  Mon Oct 18 11:52:54 2004
From: sscomp2004 at yahoo.com.au (s comp)
Date: Tue, 19 Oct 2004 01:52:54 +1000 (EST)
Subject: [vtkusers] Re: Vtk Points
Message-ID: <20041018155254.35998.qmail@web61108.mail.yahoo.com>


I believe that vtkAppendFilter should do the job. I have not tried this yet myself though.



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From beau.sapach at ualberta.ca  Mon Oct 18 12:40:17 2004
From: beau.sapach at ualberta.ca (Beau Sapach)
Date: Mon, 18 Oct 2004 10:40:17 -0600
Subject: [vtkusers] Zooming an Image
Message-ID: <200410181640.i9IGeKb2001203@pilsener.srv.ualberta.ca>

Hello everyone,

I'm using vtkImageMapper and vtkActor2D to display an time-series of images
as a movie.  I want to be able to zoom in on a given frame and continue
playing the series at that zoom setting, when I use vtkImageMagnify the
program gets VERY slow, this is seems very CPU intensive.  Is there a better
way to zoom?  Thanks!

Beau



From cmoad at indiana.edu  Mon Oct 18 12:45:00 2004
From: cmoad at indiana.edu (Charles Moad)
Date: Mon, 18 Oct 2004 11:45:00 -0500
Subject: [vtkusers] Zooming an Image
In-Reply-To: <200410181640.i9IGeKb2001203@pilsener.srv.ualberta.ca>
References: <200410181640.i9IGeKb2001203@pilsener.srv.ualberta.ca>
Message-ID: <1098117900.26490.4.camel@localhost>

vtkRenderer.GetActiveCamera().Zoom()

Messing with the camera should have no overhead.

- Charlie

On Mon, 2004-10-18 at 11:40, Beau Sapach wrote:
> Hello everyone,
> 
> I'm using vtkImageMapper and vtkActor2D to display an time-series of images
> as a movie.  I want to be able to zoom in on a given frame and continue
> playing the series at that zoom setting, when I use vtkImageMagnify the
> program gets VERY slow, this is seems very CPU intensive.  Is there a better
> way to zoom?  Thanks!
> 
> Beau
> 
> _______________________________________________
> This is the private VTK discussion list. 
> Please keep messages on-topic. Check the FAQ at: <http://public.kitware.com/cgi-bin/vtkfaq>
> Follow this link to subscribe/unsubscribe:
> http://www.vtk.org/mailman/listinfo/vtkusers
> 
> 



From jdhunter at ace.bsd.uchicago.edu  Mon Oct 18 12:23:58 2004
From: jdhunter at ace.bsd.uchicago.edu (John Hunter)
Date: Mon, 18 Oct 2004 11:23:58 -0500
Subject: [vtkusers] transforming actor collections
Message-ID: <m23c0cro4h.fsf@mother.paradise.lost>


I have two sets of actors, and I would like to register one set with
another.  For concreteness, the first set are surface electrodes and
the second set are subdural electrodes.  I have the x,y,z positions of
each of these, acquired with different instruments in different
coordinate systems, and I want to register them ( I also have some
common reference points in both sets).  Because the measurement of the
surface electrodes is problematic (lots of measurement error), there
will be a certain amount of "hand-tuning" the registration process.  I
would like to use the actor based transformations "a" of the
interactor style to help in this process.  I can do this with single
elements (I use a cylinder to represent single electrodes, but for
some of the operations I would like to apply to mouse movement (actor
based pan, zoom, rotate) to all of the elements of the set.  I naively
tried making the two sets each an vtkActorCollection, but the actor
based interactor movements only applied to the actor under point.
Ideally, I would like to be able to apply the transformations to the
entire set at once, or to elements of the set.

On a related question: if I have x,y,z coords for an ordered set of N
points, and another set of x,y,z coords for the same N points with the
same ordering but in a different coordinate system with measurement
error in both sets, what is the transformation on the second set that
would minimize the sum of squared distances to the points in the
first?  Pointers to tutorials, references, etc, appreciated. 

Thanks!
JDH

Here is the python script I am using for testing, in which I create
two collections of sphere actors


#!/usr/local/bin/python
import os

import pygtk
pygtk.require('2.0')

import gtk
import vtk
from random import random
from vtk.gtk.GtkGLExtVTKRenderWindow import GtkGLExtVTKRenderWindow
from vtk.gtk.GtkGLExtVTKRenderWindowInteractor import GtkGLExtVTKRenderWindowInteractor


window = gtk.Window()
window.set_title("A GtkGLExtVTKRenderWindow Demo!")
window.connect("destroy", gtk.mainquit)
window.connect("delete_event", gtk.mainquit)
window.set_border_width(10)
winwidth, winheight = 600,600
window.set_size_request(winwidth, winheight)

renwinInteractor = GtkGLExtVTKRenderWindowInteractor()        
renwinInteractor.set_size_request(winwidth, winheight)
renwinInteractor.show()
renderer = vtk.vtkRenderer()
renWin = renwinInteractor.GetRenderWindow()
renWin.AddRenderer(renderer)
interactor = renWin.GetInteractor()


vbox = gtk.VBox(spacing=3)
vbox.show()
vbox.pack_start(renwinInteractor, gtk.TRUE, gtk.TRUE)

button = gtk.Button('Quit')
button.show()
button.connect('clicked', gtk.mainquit)
vbox.pack_start(button, gtk.FALSE, gtk.FALSE)
window.add(vbox)


def sphere_collection(color=(1,0,0)):
    collection = vtk.vtkActorCollection()
    for i in range(10):
        sphere = vtk.vtkSphereSource()
        sphere.SetRadius(20)
        res = 20
        sphere.SetThetaResolution(res)
        sphere.SetPhiResolution(res)
        center = [100*random() for i in range(3)]
        sphere.SetCenter(*center)
        mapper = vtk.vtkPolyDataMapper()
        mapper.SetInput(sphere.GetOutput())

        actor = vtk.vtkActor()
        actor.SetMapper(mapper)
        actor.GetProperty().SetOpacity(0.5)
        actor.GetProperty().SetColor(*color)        
        renderer.AddActor(actor)
        collection.AddItem(actor)
    return collection

c1 = sphere_collection(color=(1,0,0))
c2 = sphere_collection(color=(0,1,0))

# show the main window and start event processing.
window.show()
gtk.mainloop()




From dgobbi at imaging.robarts.ca  Mon Oct 18 13:14:22 2004
From: dgobbi at imaging.robarts.ca (David Gobbi)
Date: Mon, 18 Oct 2004 13:14:22 -0400 (EDT)
Subject: [vtkusers] Zooming an Image
In-Reply-To: <1098117900.26490.4.camel@localhost>
Message-ID: <Pine.GSO.4.44.0410181310030.3103-100000@crater.irus.robarts.ca>

Note that in order for Zoom() to work, you will need to display the
image with a vtkImageActor, not a vtkImageMapper, since Zoom only
impacts the appearance of 3D actors.

Also, rather than Zoom, it is better to do this:
camera->ParallelProjectionOn()
camera->SetParallelScale(imagesize/zoom)

For viewing images (as opposed to viewing 3D scenes), parallel projection
is better than perspective projection.

 - David

On Mon, 18 Oct 2004, Charles Moad wrote:

> vtkRenderer.GetActiveCamera().Zoom()
>
> Messing with the camera should have no overhead.
>
> - Charlie
>
> On Mon, 2004-10-18 at 11:40, Beau Sapach wrote:
> > Hello everyone,
> >
> > I'm using vtkImageMapper and vtkActor2D to display an time-series of images
> > as a movie.  I want to be able to zoom in on a given frame and continue
> > playing the series at that zoom setting, when I use vtkImageMagnify the
> > program gets VERY slow, this is seems very CPU intensive.  Is there a better
> > way to zoom?  Thanks!
> >
> > Beau
> >
> > _______________________________________________
> > This is the private VTK discussion list.
> > Please keep messages on-topic. Check the FAQ at: <http://public.kitware.com/cgi-bin/vtkfaq>
> > Follow this link to subscribe/unsubscribe:
> > http://www.vtk.org/mailman/listinfo/vtkusers
> >
> >
>
> _______________________________________________
> This is the private VTK discussion list.
> Please keep messages on-topic. Check the FAQ at: <http://public.kitware.com/cgi-bin/vtkfaq>
> Follow this link to subscribe/unsubscribe:
> http://www.vtk.org/mailman/listinfo/vtkusers
>



From mlederer at foster-miller.com  Mon Oct 18 14:59:49 2004
From: mlederer at foster-miller.com (Lederer, Maitland)
Date: Mon, 18 Oct 2004 14:59:49 -0400
Subject: [vtkusers] problem using vtkImageData::GetScalarComponentAsFloat
Message-ID: <948A5EDF684ECD4A94C5120EABD66CA903549F04@b1srvmail.foster-miller.com>

Good afternoon everyone-

I'm using Tcl and would like to access the scalars of a vtkImageData.  I
tried using 

set foo [imgData GetScalarComponentAsFloat 100 100 0 0]

but got the error message "could not find requested method or method was
called with incorrect arguments."  The point 100,100,0 is definitely
part of the vtkImageData.  I hunted through the archives but didn't find
anything particularly useful.  Has anyone else encountered this sort of
an issue?  Any suggestions?

Thanks,
-Maitland

**************************
M. Maitland Lederer
Staff Engineer 
Foster-Miller, Inc.
(781)684-4618




From dean.inglis at camris.ca  Mon Oct 18 15:37:38 2004
From: dean.inglis at camris.ca (dean.inglis at camris.ca)
Date: Mon, 18 Oct 2004 15:37:38 -0400
Subject: [vtkusers] problem using vtkImageData::GetScalarComponentAsFloat
Message-ID: <20041018193742.GAUD3656.tomts7-srv.bellnexxia.net@mxmta.bellnexxia.net>

Maitland,

GetScalarComponentAsFloat()
was changed a while back to 
GetScalarComponentAsDouble()

Dean




From lindsey at sci.utah.edu  Mon Oct 18 15:40:42 2004
From: lindsey at sci.utah.edu (Lindsey McAninch)
Date: 18 Oct 2004 13:40:42 -0600
Subject: [vtkusers] Image Gradient manipulations
Message-ID: <1098128442.4071.6.camel@widlar.sci.utah.edu>

Hi, 

I have a segmented image for which I want to calculate the gradients at
each point for the image.  I want to take the gradients and for a
certain point, take the vector inner product (or dot product) of that
point with each of the surrounding voxels.  I want to then use these
scalar values to do a color map back on to the image once it is
rendered.  My question is how to pull out the gradient at individual
points so I can further process it.  Also I am not sure exactly what I
am getting when I use vtkImageGradient.  If someone could explain this,
I would really be greatful.  Thanks again!

Lindsey
SCI Institute
University of Utah
-- 
Lindsey McAninch <lindsey at sci.utah.edu>



From jak4.scr at gmx.net  Mon Oct 18 15:57:10 2004
From: jak4.scr at gmx.net (=?ISO-8859-1?Q?=22Johannes_K=E4fer=22?=)
Date: Mon, 18 Oct 2004 21:57:10 +0200 (MEST)
Subject: [vtkusers] [Try Again] Multiple Volumes with one Renderer
Message-ID: <5068.1098129430@www68.gmx.net>

Hi,

I'm trying to render two or more Volumes with one Renderer. I don't want to
be able to see a volume lying behind the volume in front. Can someone give
me a hint?

More detailed. I'm rendering two volumes in one renderer as said above. This
works quite nice. I'm using the vtkVolumeRayCastMapper with the
vtkVolumeRayCastCompositeFunction.
The Volumes I render are quite translucent so when I have two volumes I can
see the volume lying behind the first one. I don't want this to happen. I
want to stop the raycasting when I enter a new Volume. Is there any way this
can be done/ has already been done? If not were to start modifying vtk in
order to get it done.

Thank you for your help.

best regards
  Johannes
Regards
  Johannes


-- 
GMX ProMail mit bestem Virenschutz http://www.gmx.net/de/go/mail
+++ Empfehlung der Redaktion +++ Internet Professionell 10/04 +++



From lindsey at sci.utah.edu  Mon Oct 18 17:34:59 2004
From: lindsey at sci.utah.edu (Lindsey McAninch)
Date: 18 Oct 2004 15:34:59 -0600
Subject: [vtkusers] How do I color map vtkPolyData? Please help
Message-ID: <1098135299.4071.10.camel@widlar.sci.utah.edu>

I want to color map vtkPolyData, which is the curvature of an image I
have segmented and rendered.  I don't know what I should use though or
if there is anything that works, all I have tried hasn't worked. 
Thanks!
Lindsey McAninch
-- 
Lindsey McAninch <lindsey at sci.utah.edu>



From sscomp2004 at yahoo.com.au  Mon Oct 18 22:25:50 2004
From: sscomp2004 at yahoo.com.au (s comp)
Date: Tue, 19 Oct 2004 12:25:50 +1000 (EST)
Subject: [vtkusers] How to use more than one set of scalar (or other) data
	from a dataset? 
In-Reply-To: <200410181355.i9IDtgiq027133@apollo.sr.unh.edu>
Message-ID: <20041019022550.4163.qmail@web61110.mail.yahoo.com>

Thanks Tom,
 
But it did not work, perhaps because I am using an unstructured grid, which doesn't seem to recognise the method "SetActiveScalars", what should be the equivalent I think, "SetScalarsName", is recognised, but doesn't do what I expected as I said (It always uses the scalar field that comes last in the script).
 
Does anyone know how to use different scalar fields in different parts of the one TCL script?
 
I am guessing this has something to do with the lazy algorithm, meaning that these scripts don't execute in a linear fasion?
 
Sonam

tom fogal <tfogal at apollo.sr.unh.edu> wrote:
<20041018115934.57007.qmail at web61101.mail.yahoo.com>s comp writes:
>How, for example, do I contour 2 different scalar fields from the one data set
> at the same time?
>
>The obvious way of using SetScalarsName once creating a contour, and then usin
>g SetScalarsName again to change the scalar field, and creating another contou
>r does not work - both contours are of the same scalar field.

Try 'SetActiveScalars(char*)'. The string it takes is the name given to
the scalars via AddArray() and SetArray() [which both use the name of
the vtkArray which is passed into it].
These methods are off of vtkPointData or one of its parents, I believe.
For example, for a rectilinear grid (at least) I would do:

Grid->GetPointData()->SetActiveScalars("data1");
[ . . . generate contour . . .]
Grid->GetPointData()->SetActiveScalars("data2");
[ . . . generate contour . . .]

HTH,

-tom





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From sscomp2004 at yahoo.com.au  Mon Oct 18 22:36:51 2004
From: sscomp2004 at yahoo.com.au (s comp)
Date: Tue, 19 Oct 2004 12:36:51 +1000 (EST)
Subject: [vtkusers] vtkUnstructuredGridWriter - How to write more than one
	scalar field to file?
Message-ID: <20041019023651.6154.qmail@web61102.mail.yahoo.com>

Hi All,
 
I am using vtkUnstructuredGridWriter to write data that I have read and triangulated, but it doesn't keep all of the fields that were with the original data just the first instances of each type of data. How can I write all of them to file?
 
Thanks,
 
Sonam



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From mlaks at verizon.net  Mon Oct 18 22:58:42 2004
From: mlaks at verizon.net (Meshulum Laks)
Date: Mon, 18 Oct 2004 22:58:42 -0400
Subject: [vtkusers] problem with vtk on linux (debian) with opengl libs
	from
In-Reply-To: <4173CEBE.1020601@kitware.com>
References: <20041018030621.RYCN9098.fep02.biz.rr.com@[127.0.0.1]>
	<200410180131.23668.mlaks@verizon.net>
	<4173CEBE.1020601@kitware.com>
Message-ID: <200410182258.42043.mlaks@verizon.net>

Dear Mathieu,

I am very grateful for all of your help.
I jgave up. I ust pulled the 9800xt card and removed the ati radeon drivers 
and installed a nvidia 5950 utra and ran the nvidia intaller and it ran 
immediately. 
Beautiful Cones!!!! no vtk problems!!
gears of 6000+ frames per second!!!

nvidia rules!!!

I probably could have gotten the ati working, but I really want to learn VTK 
and ITK and build my open source dicom workstation for linux, not figure out 
ati radeon drivers. So I am getting rid of the radeon- putting it in the 
windows pc workstation that yielded the nvidia card, and I am glad I had both 
to try.

You are a very kind and helpful person, and I look forward to asking 
substantive vtk questions as I get through the examples.!!!
Thanks,
MItchell

On Monday 18 October 2004 10:10 am, you wrote:

> Meshulum Laks wrote:
> > One additional point
> > I mention also that I clearly again have a satisfactory install of opengl
> > for the ati radeon driver
> > as when i run the application
> > fgl_glxgears that was installed by the fglrx deb
> > it again runs with speeds of 600frames/persecond
> >
> > It seems to be a problem with running vtk via these drivers itself
> >
> > is there a viable alternative, and what have others done...
> > also how to trick debian apt to deal with this kind of shared library
> > conflict in /usr/X11R6/lib/libGL.so.1.2 etc
> > so that i can get my kde back?
>
> Mitchell,
>
> 	Ok I reread the instructions on:
>
> http://www.watchland.org/dmcgraw/ati-debian.html
>
> 	I think you should use alien to convert to tgz, extract at top level
> '/', then go to /lib/modules/fglrx/build_mod ...
>
> HTH,
> Mathieu
> Ps: avoid aving multiple libGL in different directory, it just doesn't
> make sense. Also if you used libGL.a at some point I'd suggest you
> remove all your binaries, 'make clean' if you are paranoid.


From mathieu.malaterre at kitware.com  Mon Oct 18 23:12:38 2004
From: mathieu.malaterre at kitware.com (Mathieu Malaterre)
Date: Mon, 18 Oct 2004 23:12:38 -0400
Subject: [vtkusers] problem with vtk on linux (debian) with opengl
	libs from
Message-ID: <20041019031238.XAXC9098.fep02.biz.rr.com@[127.0.0.1]>

Thanks Mitchell I was just trying to help you as I had gone through the same problems, that's all. Anyway I did setup a wiki page:

http://vtk.org/Wiki/VTK_OpenGL

That should help other people setup their opengl driver, but as you mention, if nvidia worked out of the box, ATI should *seriously* rethink the quality of their linux driver.

You mentioned an open source dicom workstation, where are you going to get the dicom lib ?

Anyway enjoy,
Mathieu


> Dear Mathieu,
> 
> I am very grateful for all of your help.
> I jgave up. I ust pulled the 9800xt card and removed the ati radeon drivers 
> and installed a nvidia 5950 utra and ran the nvidia intaller and it ran 
> immediately. 
> Beautiful Cones!!!! no vtk problems!!
> gears of 6000+ frames per second!!!
> 
> nvidia rules!!!
> 
> I probably could have gotten the ati working, but I really want to learn VTK 
> and ITK and build my open source dicom workstation for linux, not figure out 
> ati radeon drivers. So I am getting rid of the radeon- putting it in the 
> windows pc workstation that yielded the nvidia card, and I am glad I had both 
> to try.
> 
> You are a very kind and helpful person, and I look forward to asking 
> substantive vtk questions as I get through the examples.!!!
> Thanks,
> MItchell
> 
> On Monday 18 October 2004 10:10 am, you wrote:
> 
> > Meshulum Laks wrote:
> > > One additional point
> > > I mention also that I clearly again have a satisfactory install of opengl
> > > for the ati radeon driver
> > > as when i run the application
> > > fgl_glxgears that was installed by the fglrx deb
> > > it again runs with speeds of 600frames/persecond
> > >
> > > It seems to be a problem with running vtk via these drivers itself
> > >
> > > is there a viable alternative, and what have others done...
> > > also how to trick debian apt to deal with this kind of shared library
> > > conflict in /usr/X11R6/lib/libGL.so.1.2 etc
> > > so that i can get my kde back?
> >
> > Mitchell,
> >
> > 	Ok I reread the instructions on:
> >
> > http://www.watchland.org/dmcgraw/ati-debian.html
> >
> > 	I think you should use alien to convert to tgz, extract at top level
> > '/', then go to /lib/modules/fglrx/build_mod ...
> >
> > HTH,
> > Mathieu
> > Ps: avoid aving multiple libGL in different directory, it just doesn't
> > make sense. Also if you used libGL.a at some point I'd suggest you
> > remove all your binaries, 'make clean' if you are paranoid.
> 




From sscomp2004 at yahoo.com.au  Mon Oct 18 23:54:36 2004
From: sscomp2004 at yahoo.com.au (s comp)
Date: Tue, 19 Oct 2004 13:54:36 +1000 (EST)
Subject: [vtkusers] How to size glyphs with one scalar field,
	and colour with another?
Message-ID: <20041019035436.92753.qmail@web61108.mail.yahoo.com>

Hi All,
 
How can I size glyphs with one scalar field and colour them with another?
 
Thanks,
 
Sonam



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From mlaks at verizon.net  Tue Oct 19 00:09:45 2004
From: mlaks at verizon.net (Meshulum Laks)
Date: Tue, 19 Oct 2004 00:09:45 -0400
Subject: [vtkusers] problem with vtk on linux (debian) with opengl libs
	from
In-Reply-To: <20041019031238.XAXC9098.fep02.biz.rr.com@[127.0.0.1]>
References: <20041019031238.XAXC9098.fep02.biz.rr.com@[127.0.0.1]>
Message-ID: <200410190009.45342.mlaks@verizon.net>

On Monday 18 October 2004 11:12 pm, you wrote:
> You mentioned an open source dicom workstation, where are you going to get
> the dicom lib ?

I have been using dcmtk (c++), which is very nice to use to decode dicom 
files.

I also have been using the open source (essentially c ) wustl ctn software 
which is nice as it has a full database backed (Postgresql) dicom server, 
which I have currently stored over 10 terabytes of dicom files serving my 
hospital.
so I think maybe to use  a combination of both to speed my work and just build 
the gui with qt. 
I have already written a simple toy display with opengl. But now I see from 
the work of the people who wrote Osirix for Mac OSX the power of vtk and I 
want to tap into that! 
Mitchell 


From craig.scott at csiro.au  Tue Oct 19 00:51:49 2004
From: craig.scott at csiro.au (Craig N. Scott)
Date: Tue, 19 Oct 2004 14:51:49 +1000
Subject: [vtkusers] How to size glyphs with one scalar field, and
	colour with another?
In-Reply-To: <20041019035436.92753.qmail@web61108.mail.yahoo.com>
References: <20041019035436.92753.qmail@web61108.mail.yahoo.com>
Message-ID: <1098161509.5505.48.camel@caulfield>

I had to do something similar myself recently, only with scalars and
vectors (not fields). I got little response from the mailing list, but I
eventually worked out a solution using vtkProgammableGlyphFilter. It
involves saving the scalar data array to be used for scaling, then
setting the scalar array for the reader to the one I wanted to color by.
What follows is a brief snippet of Tcl code. It should draw spheres with
radius corresponding to a scalar point data set called "radius" and
color the spheres  according to a different scalar point data set called
"colorValues". I haven't tested the code below (I've pulled it out from
pieces of some of my work), but it should do the trick.

PS: I don't claim that it is good Tcl coding style, nor particularly
efficient!
======================================

vtkUnstructuredGridReader  reader
reader SetFileName "something.vtk"

reader SetScalarsName "radius"
reader Update
  
set srcArray [[[reader GetOutput] GetPointData] GetArray "radius"] 

vtkDoubleArray radiusArray
radiusArray DeepCopy $srcArray
  
reader SetScalarsName "colorValues"

vtkSphereSource sphere

# procedure for generating glyphs
proc Glyph {} {
   set ptId [glypher GetPointId]
   set xyz  [glypher GetPoint]
   set x [lindex $xyz 0] 
   set y [lindex $xyz 1] 
   set z [lindex $xyz 2] 

   set radius [radiusArray GetTuple1 $ptId]
   
   eval sphere SetRadius $radius
   eval sphere SetCenter $xyz
}

vtkProgrammableGlyphFilter glypher
glypher SetInput [reader GetOutput]
glypher SetSource [sphere GetOutput]
glypher SetGlyphMethod {Glyph}

vtkDataSetMapper resultMapper
resultMapper SetInput [glypher GetOutput]

 :
 (set up an actor, renderer, etc. as per usual)
 :


On Tue, 2004-10-19 at 13:54, s comp wrote:
> Hi All,
>  
> How can I size glyphs with one scalar field and colour them with
> another?
>  
> Thanks,
>  
> Sonam

-- 
Dr Craig Scott, CSIRO (CMIS)
Melbourne, Australia

Computers are easy to reboot. Attitudes are much harder.


From mirelle_mellqvist at hotmail.com  Tue Oct 19 02:42:03 2004
From: mirelle_mellqvist at hotmail.com (Mirelle Mellqvist)
Date: Tue, 19 Oct 2004 06:42:03 +0000
Subject: [vtkusers] Static library problem
Message-ID: <BAY1-F22R1JBjbUf9Sp00003a32@hotmail.com>

Hi all!
I decided a while ago to use static libraries with vtk (earlier I used 
dynamically linkend) and I have had a few examples working with the static 
libraries. I am using Visual studio .net and I am pretty sure that I have 
included all the libraries in a correct way. Now when we started working on 
a new project I keep getting these errors that I don't understand.
I have looked through the mailing list for problems of the same kind, but no 
luck there. So therefor I decided to send out an e-mail in hope that someone 
else ran into this problem.
Please let me know if you know what I am missing out on. Here are my errors:

Compiling resources...
Linking...
vtkRendering.lib(vtkOpenGLFreeTypeTextMapper.obj) : error LNK2019: 
unresolved external symbol "public: float __thiscall FTFont::Advance(char 
const *)" (?Advance at FTFont@@QAEMPBD at Z) referenced in function "public: 
virtual void __thiscall vtkOpenGLFreeTypeTextMapper::GetSize(class 
vtkViewport *,int * const)" 
(?GetSize at vtkOpenGLFreeTypeTextMapper@@UAEXPAVvtkViewport@@QAH at Z)
vtkRendering.lib(vtkOpenGLFreeTypeTextMapper.obj) : error LNK2019: 
unresolved external symbol "public: void __thiscall FTFont::BBox(char const 
*,float &,float &,float &,float &,float &,float &)" 
(?BBox at FTFont@@QAEXPBDAAM11111 at Z) referenced in function "public: virtual 
void __thiscall vtkOpenGLFreeTypeTextMapper::GetSize(class vtkViewport *,int 
* const)" (?GetSize at vtkOpenGLFreeTypeTextMapper@@UAEXPAVvtkViewport@@QAH at Z)
vtkRendering.lib(vtkFreeTypeUtilities.obj) : error LNK2019: unresolved 
external symbol "public: static class FTLibrary * __cdecl 
FTLibrary::GetInstance(void)" (?GetInstance at FTLibrary@@SAPAV1 at XZ) referenced 
in function "public: struct FT_LibraryRec_ * * __thiscall 
vtkFreeTypeUtilities::GetLibrary(void)" 
(?GetLibrary at vtkFreeTypeUtilities@@QAEPAPAUFT_LibraryRec_@@XZ)
vtkRendering.lib(vtkFreeTypeUtilities.obj) : error LNK2019: unresolved 
external symbol _FT_Set_Transform referenced in function 
_vtkFreeTypeUtilitiesFaceRequester
vtkRendering.lib(vtkFreeTypeUtilities.obj) : error LNK2019: unresolved 
external symbol _FT_New_Memory_Face referenced in function 
_vtkFreeTypeUtilitiesFaceRequester
vtkRendering.lib(vtkFreeTypeUtilities.obj) : error LNK2019: unresolved 
external symbol _FTC_Manager_Done referenced in function "private: void 
__thiscall vtkFreeTypeUtilities::ReleaseCacheManager(void)" 
(?ReleaseCacheManager at vtkFreeTypeUtilities@@AAEXXZ)
vtkRendering.lib(vtkFreeTypeUtilities.obj) : error LNK2019: unresolved 
external symbol "public: bool __thiscall FTFont::FaceSize(unsigned 
int,unsigned int)" (?FaceSize at FTFont@@QAE_NII at Z) referenced in function 
"public: struct vtkFreeTypeUtilities::Entry * __thiscall 
vtkFreeTypeUtilities::GetFont(class vtkTextProperty *,double * const)" 
(?GetFont at vtkFreeTypeUtilities@@QAEPAUEntry at 1@PAVvtkTextProperty@@QAN at Z)
vtkRendering.lib(vtkFreeTypeUtilities.obj) : error LNK2019: unresolved 
external symbol "public: __thiscall FTGLPixmapFont::FTGLPixmapFont(void)" 
(??0FTGLPixmapFont@@QAE at XZ) referenced in function "public: struct 
vtkFreeTypeUtilities::Entry * __thiscall vtkFreeTypeUtilities::GetFont(class 
vtkTextProperty *,double * const)" 
(?GetFont at vtkFreeTypeUtilities@@QAEPAUEntry at 1@PAVvtkTextProperty@@QAN at Z)
vtkRendering.lib(vtkFreeTypeUtilities.obj) : error LNK2019: unresolved 
external symbol "public: static void __cdecl 
FTLibraryCleanup::AddDependency(void (__cdecl*)(void))" 
(?AddDependency at FTLibraryCleanup@@SAXP6AXXZ at Z) referenced in function 
"public: __thiscall 
vtkFreeTypeUtilitiesCleanup::vtkFreeTypeUtilitiesCleanup(void)" 
(??0vtkFreeTypeUtilitiesCleanup@@QAE at XZ)
vtkRendering.lib(vtkFreeTypeUtilities.obj) : error LNK2019: unresolved 
external symbol _FTC_CMapCache_New referenced in function "private: void 
__thiscall vtkFreeTypeUtilities::InitializeCacheManager(void)" 
(?InitializeCacheManager at vtkFreeTypeUtilities@@AAEXXZ)
vtkRendering.lib(vtkFreeTypeUtilities.obj) : error LNK2019: unresolved 
external symbol _FTC_ImageCache_New referenced in function "private: void 
__thiscall vtkFreeTypeUtilities::InitializeCacheManager(void)" 
(?InitializeCacheManager at vtkFreeTypeUtilities@@AAEXXZ)
vtkRendering.lib(vtkFreeTypeUtilities.obj) : error LNK2019: unresolved 
external symbol _FTC_Manager_New referenced in function "private: void 
__thiscall vtkFreeTypeUtilities::InitializeCacheManager(void)" 
(?InitializeCacheManager at vtkFreeTypeUtilities@@AAEXXZ)
vtkRendering.lib(vtkFreeTypeUtilities.obj) : error LNK2019: unresolved 
external symbol _FTC_Manager_LookupSize referenced in function "public: int 
__thiscall vtkFreeTypeUtilities::GetSize(unsigned long,int,struct 
FT_SizeRec_ * *)" 
(?GetSize at vtkFreeTypeUtilities@@QAEHKHPAPAUFT_SizeRec_@@@Z)
vtkRendering.lib(vtkFreeTypeUtilities.obj) : error LNK2019: unresolved 
external symbol _FTC_Manager_LookupFace referenced in function "public: int 
__thiscall vtkFreeTypeUtilities::GetFace(unsigned long,struct FT_FaceRec_ * 
*)" (?GetFace at vtkFreeTypeUtilities@@QAEHKPAPAUFT_FaceRec_@@@Z)
vtkRendering.lib(vtkFreeTypeUtilities.obj) : error LNK2019: unresolved 
external symbol _FTC_CMapCache_Lookup referenced in function "public: int 
__thiscall vtkFreeTypeUtilities::GetGlyphIndex(unsigned long,char,unsigned 
int *)" (?GetGlyphIndex at vtkFreeTypeUtilities@@QAEHKDPAI at Z)
vtkRendering.lib(vtkFreeTypeUtilities.obj) : error LNK2019: unresolved 
external symbol _FTC_ImageCache_Lookup referenced in function "public: int 
__thiscall vtkFreeTypeUtilities::GetGlyph(unsigned long,int,unsigned 
int,struct FT_GlyphRec_ * *,int)" 
(?GetGlyph at vtkFreeTypeUtilities@@QAEHKHIPAPAUFT_GlyphRec_@@H at Z)
vtkRendering.lib(vtkFreeTypeUtilities.obj) : error LNK2019: unresolved 
external symbol _FT_Get_Kerning referenced in function "public: int 
__thiscall vtkFreeTypeUtilities::GetBoundingBox(class vtkTextProperty *,char 
const *,int * const)" 
(?GetBoundingBox at vtkFreeTypeUtilities@@QAEHPAVvtkTextProperty@@PBDQAH at Z)
Release/WinApp.exe : fatal error LNK1120: 17 unresolved externals

Build log was saved at 
"file://c:\Mirelle\20041019\WinApp_Peter\Release\BuildLog.htm"
WinApp - 18 error(s), 0 warning(s)


---------------------- Done ----------------------

    Rebuild All: 0 succeeded, 1 failed, 0 skipped


Kind regards,
Mirelle Mellqvist

_________________________________________________________________
L?ttare att hitta dr?mresan med MSN Resor http://www.msn.se/resor/



From sscomp2004 at yahoo.com.au  Tue Oct 19 02:53:07 2004
From: sscomp2004 at yahoo.com.au (s comp)
Date: Tue, 19 Oct 2004 16:53:07 +1000 (EST)
Subject: [vtkusers] vtkExtractEdges actor does not respond to SetOpacity,
	is there a fix or workaround for this
Message-ID: <20041019065307.18929.qmail@web61104.mail.yahoo.com>

Hi,
 
I would like to make an edges actor transparent but
 
[edgeActor GetProperty] SetOpacity 0.1
 
does not work.
 
Is there another way to achieve this, or has it been fixed in new versions of vtk?, I am using 4.2.?? windows binary distribution
 
(I would rather not upgrade at the moment if possible)
 
Thanks,
 
Sonam



---------------------------------
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From manoj at bhu.ac.in  Tue Oct 19 02:33:51 2004
From: manoj at bhu.ac.in (Manoj Kumar Singh)
Date: Tue, 19 Oct 2004 11:33:51 +0500
Subject: [vtkusers] problem compiling  vtk-4.5.0  on fedora core 2
Message-ID: <155ec19adb.19adb155ec@mail.bhu.ac.in>



----- Original Message -----
From: Mathieu Malaterre <mathieu.malaterre at kitware.com>
Date: Tuesday, October 12, 2004 7:54 pm
Subject: Re: [vtkusers] problem compiling  vtk-4.5.0  on fedora core 2

> Manoj,
> 
>    could you run the make command in verbose mode:
> 
> make VERBOSE=1
> 
> And send me the compilation line that fail.
> 
> Thanks
> Mathieu
Last few lines from running 'make VERBOSE=1' are :
make[3]: Entering directory `/usr/src/redhat/BUILD/VTK/Wrapping/Python'
Building executable /usr/src/redhat/BUILD/VTK/bin/vtkpython...
g++ -O2 -g -pipe -march=i386 -mcpu=i686 -Wno-deprecated
-Wno-deprecated -fPIC vtkPythonAppInit.o -o
/usr/src/redhat/BUILD/VTK/bin/vtkpython -rdynamic -L.
-L/usr/src/redhat/BUILD/VTK/lib -L/usr/lib/python2.3/config
-L/usr/X11R6/lib -lpython2.3 -lvtkCommon -lvtkFiltering -lvtkIO
-lvtkGraphics -lvtkImaging -lvtkzlib -lutil -lvtkRendering -lvtkPatented
-lvtkHybrid -lvtkParallel -lvtkPatented -lvtkRendering -lvtkGraphics
-lvtkImaging -lvtkftgl -lvtkfreetype -lGL -lXt -lSM -lICE -lSM -lICE
-lSM -lICE -lX11 -lXext -lX11 -lXext -lX11 -lXext -lvtkIO -lvtkFiltering
-lvtkCommon -lpthread -ldl -lm -lvtkDICOMParser -lvtkpng -lvtktiff
-lvtkzlib -lvtkjpeg -lvtkexpat
/usr/lib/python2.3/config/libpython2.3.a(posixmodule.o)(.text+0x410e):
In function `posix_tmpnam':
: warning: the use of `tmpnam_r' is dangerous, better use `mkstemp'
/usr/lib/python2.3/config/libpython2.3.a(posixmodule.o)(.text+0x4039):
In function `posix_tempnam':
: warning: the use of `tempnam' is dangerous, better use `mkstemp'
/usr/src/redhat/BUILD/VTK/lib/libvtkRendering.so: undefined reference to
`crc32'/usr/src/redhat/BUILD/VTK/lib/libvtkRendering.so: undefined
reference to `compress'
collect2: ld returned 1 exit status
make[3]: *** [/usr/src/redhat/BUILD/VTK/bin/vtkpython] Error 1
make[3]: Leaving directory `/usr/src/redhat/BUILD/VTK/Wrapping/Python'
make[2]: *** [default_target] Error 2
make[2]: Leaving directory `/usr/src/redhat/BUILD/VTK/Wrapping/Python'
make[1]: *** [default_target_Wrapping_Python] Error 2
make[1]: Leaving directory `/usr/src/redhat/BUILD/VTK'
make: *** [default_target] Error 2

Thanks
  Manoj
>
> >>>_______________________________________________
> >>>This is the private VTK discussion list. 
> >>>Please keep messages on-topic. Check the FAQ at: <" 
> >>
> >>target="l">" target="l">http://public.kitware.com/cgi-bin/vtkfaq>
> >>
> >>>Follow this link to subscribe/unsubscribe:
> >>>http://www.vtk.org/mailman/listinfo/vtkusers
> >>>
> >>
> >>
> >>
> >>
> > 
> > 
> 
> 
> 
> 



From zfjgo at 126.com  Tue Oct 19 04:25:04 2004
From: zfjgo at 126.com (=?gb2312?B?emZqZ28=?=)
Date: Tue, 19 Oct 2004 16:25:04 +0800 (CST)
Subject: [vtkusers] How to transform a ImageData to BMP type?
Message-ID: <4174CF60.00001C.15765@m59.126.com>



Now I have a ImageData file,but I don't know its data type,I want to transform it to BMP type.How to do?
Thanks for your reply.



-----------------------------------------------------------
??126????????????????????http://www.126.com/
??????????260???12?????????????????

From zfjgo at 126.com  Tue Oct 19 04:48:28 2004
From: zfjgo at 126.com (=?gb2312?B?emZqZ28=?=)
Date: Tue, 19 Oct 2004 16:48:28 +0800 (CST)
Subject: [vtkusers] Seek User "shijith"!
Message-ID: <4174D4DC.000158.21432@m58.126.com>

Hello  shijith
   
I encounter the same problem as you now.That is VTK in MFC.
So I am eager to contact with you.
My Email Add.    zfjgo at 126.com
  




-----------------------------------------------------------
??126????????????????????http://www.126.com/
??????????260???12?????????????????

From shijith at ddd.co.jp  Tue Oct 19 05:01:10 2004
From: shijith at ddd.co.jp (shijith)
Date: Tue, 19 Oct 2004 18:01:10 +0900
Subject: [vtkusers] Seek User "shijith"!
In-Reply-To: <20041019084850.E00A1305B0@public.kitware.com>
Message-ID: <LGEEICMBGMOGCJKAGDHLEECDCAAA.shijith@ddd.co.jp>

Hi,
What's wrong with your VTK MFC application?
Shijith
-----Original Message-----
From: vtkusers-bounces at vtk.org [mailto:vtkusers-bounces at vtk.org]On
Behalf Of vtkusers-request at vtk.org
Sent: Tuesday, October 19, 2004 5:49 PM
To: vtkusers at vtk.org
Subject: vtkusers Digest, Vol 6, Issue 38


Send vtkusers mailing list submissions to
	vtkusers at vtk.org

To subscribe or unsubscribe via the World Wide Web, visit
	http://www.vtk.org/mailman/listinfo/vtkusers
or, via email, send a message with subject or body 'help' to
	vtkusers-request at vtk.org

You can reach the person managing the list at
	vtkusers-owner at vtk.org

When replying, please edit your Subject line so it is more specific
than "Re: Contents of vtkusers digest..."


Today's Topics:

   1. Re: Re: [vtkusers] problem with vtk on linux (debian) with
      opengl	libs from (Mathieu Malaterre)
   2. How to size glyphs with one scalar field,	and colour with
      another? (s comp)
   3. Re: problem with vtk on linux (debian) with opengl libs	from
      (Meshulum Laks)
   4. Re: How to size glyphs with one scalar field, and	colour with
      another? (Craig N. Scott)
   5. Static library problem (Mirelle Mellqvist)
   6. vtkExtractEdges actor does not respond to SetOpacity,	is
      there a fix or workaround for this (s comp)
   7. Re: problem compiling  vtk-4.5.0  on fedora core 2
      (Manoj Kumar Singh)
   8. How to transform a ImageData to BMP type? ( zfjgo )
   9. Seek User "shijith"! ( zfjgo )


----------------------------------------------------------------------

Message: 1
Date: Mon, 18 Oct 2004 23:12:38 -0400
From: Mathieu Malaterre <mathieu.malaterre at kitware.com>
Subject: Re: Re: [vtkusers] problem with vtk on linux (debian) with
	opengl	libs from
To: <mlaks at verizon.net>
Cc: vtkusers at vtk.org
Message-ID: <20041019031238.XAXC9098.fep02.biz.rr.com@[127.0.0.1]>
Content-Type: text/plain; charset=iso-8859-1

Thanks Mitchell I was just trying to help you as I had gone through the same
problems, that's all. Anyway I did setup a wiki page:

http://vtk.org/Wiki/VTK_OpenGL

That should help other people setup their opengl driver, but as you mention,
if nvidia worked out of the box, ATI should *seriously* rethink the quality
of their linux driver.

You mentioned an open source dicom workstation, where are you going to get
the dicom lib ?

Anyway enjoy,
Mathieu


> Dear Mathieu,
>
> I am very grateful for all of your help.
> I jgave up. I ust pulled the 9800xt card and removed the ati radeon
drivers
> and installed a nvidia 5950 utra and ran the nvidia intaller and it ran
> immediately.
> Beautiful Cones!!!! no vtk problems!!
> gears of 6000+ frames per second!!!
>
> nvidia rules!!!
>
> I probably could have gotten the ati working, but I really want to learn
VTK
> and ITK and build my open source dicom workstation for linux, not figure
out
> ati radeon drivers. So I am getting rid of the radeon- putting it in the
> windows pc workstation that yielded the nvidia card, and I am glad I had
both
> to try.
>
> You are a very kind and helpful person, and I look forward to asking
> substantive vtk questions as I get through the examples.!!!
> Thanks,
> MItchell
>
> On Monday 18 October 2004 10:10 am, you wrote:
>
> > Meshulum Laks wrote:
> > > One additional point
> > > I mention also that I clearly again have a satisfactory install of
opengl
> > > for the ati radeon driver
> > > as when i run the application
> > > fgl_glxgears that was installed by the fglrx deb
> > > it again runs with speeds of 600frames/persecond
> > >
> > > It seems to be a problem with running vtk via these drivers itself
> > >
> > > is there a viable alternative, and what have others done...
> > > also how to trick debian apt to deal with this kind of shared library
> > > conflict in /usr/X11R6/lib/libGL.so.1.2 etc
> > > so that i can get my kde back?
> >
> > Mitchell,
> >
> > 	Ok I reread the instructions on:
> >
> > http://www.watchland.org/dmcgraw/ati-debian.html
> >
> > 	I think you should use alien to convert to tgz, extract at top level
> > '/', then go to /lib/modules/fglrx/build_mod ...
> >
> > HTH,
> > Mathieu
> > Ps: avoid aving multiple libGL in different directory, it just doesn't
> > make sense. Also if you used libGL.a at some point I'd suggest you
> > remove all your binaries, 'make clean' if you are paranoid.
>




------------------------------

Message: 2
Date: Tue, 19 Oct 2004 13:54:36 +1000 (EST)
From: s comp <sscomp2004 at yahoo.com.au>
Subject: [vtkusers] How to size glyphs with one scalar field,	and
	colour with another?
To: vtkusers at vtk.org
Message-ID: <20041019035436.92753.qmail at web61108.mail.yahoo.com>
Content-Type: text/plain; charset="iso-8859-1"

Hi All,

How can I size glyphs with one scalar field and colour them with another?

Thanks,

Sonam



---------------------------------
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------------------------------

Message: 3
Date: Tue, 19 Oct 2004 00:09:45 -0400
From: Meshulum Laks <mlaks at verizon.net>
Subject: Re: [vtkusers] problem with vtk on linux (debian) with opengl
	libs	from
To: Mathieu Malaterre <mathieu.malaterre at kitware.com>
Cc: vtkusers at vtk.org
Message-ID: <200410190009.45342.mlaks at verizon.net>
Content-Type: text/plain;  charset="iso-8859-8-i"

On Monday 18 October 2004 11:12 pm, you wrote:
> You mentioned an open source dicom workstation, where are you going to get
> the dicom lib ?

I have been using dcmtk (c++), which is very nice to use to decode dicom
files.

I also have been using the open source (essentially c ) wustl ctn software
which is nice as it has a full database backed (Postgresql) dicom server,
which I have currently stored over 10 terabytes of dicom files serving my
hospital.
so I think maybe to use  a combination of both to speed my work and just
build
the gui with qt.
I have already written a simple toy display with opengl. But now I see from
the work of the people who wrote Osirix for Mac OSX the power of vtk and I
want to tap into that!
Mitchell


------------------------------

Message: 4
Date: Tue, 19 Oct 2004 14:51:49 +1000
From: "Craig N. Scott" <craig.scott at csiro.au>
Subject: Re: [vtkusers] How to size glyphs with one scalar field, and
	colour with another?
To: s comp <sscomp2004 at yahoo.com.au>
Cc: vtkusers at vtk.org
Message-ID: <1098161509.5505.48.camel at caulfield>
Content-Type: text/plain

I had to do something similar myself recently, only with scalars and
vectors (not fields). I got little response from the mailing list, but I
eventually worked out a solution using vtkProgammableGlyphFilter. It
involves saving the scalar data array to be used for scaling, then
setting the scalar array for the reader to the one I wanted to color by.
What follows is a brief snippet of Tcl code. It should draw spheres with
radius corresponding to a scalar point data set called "radius" and
color the spheres  according to a different scalar point data set called
"colorValues". I haven't tested the code below (I've pulled it out from
pieces of some of my work), but it should do the trick.

PS: I don't claim that it is good Tcl coding style, nor particularly
efficient!
======================================

vtkUnstructuredGridReader  reader
reader SetFileName "something.vtk"

reader SetScalarsName "radius"
reader Update

set srcArray [[[reader GetOutput] GetPointData] GetArray "radius"]

vtkDoubleArray radiusArray
radiusArray DeepCopy $srcArray

reader SetScalarsName "colorValues"

vtkSphereSource sphere

# procedure for generating glyphs
proc Glyph {} {
   set ptId [glypher GetPointId]
   set xyz  [glypher GetPoint]
   set x [lindex $xyz 0]
   set y [lindex $xyz 1]
   set z [lindex $xyz 2]

   set radius [radiusArray GetTuple1 $ptId]

   eval sphere SetRadius $radius
   eval sphere SetCenter $xyz
}

vtkProgrammableGlyphFilter glypher
glypher SetInput [reader GetOutput]
glypher SetSource [sphere GetOutput]
glypher SetGlyphMethod {Glyph}

vtkDataSetMapper resultMapper
resultMapper SetInput [glypher GetOutput]

 :
 (set up an actor, renderer, etc. as per usual)
 :


On Tue, 2004-10-19 at 13:54, s comp wrote:
> Hi All,
>
> How can I size glyphs with one scalar field and colour them with
> another?
>
> Thanks,
>
> Sonam

--
Dr Craig Scott, CSIRO (CMIS)
Melbourne, Australia

Computers are easy to reboot. Attitudes are much harder.


------------------------------

Message: 5
Date: Tue, 19 Oct 2004 06:42:03 +0000
From: "Mirelle Mellqvist" <mirelle_mellqvist at hotmail.com>
Subject: [vtkusers] Static library problem
To: vtkusers at vtk.org
Message-ID: <BAY1-F22R1JBjbUf9Sp00003a32 at hotmail.com>
Content-Type: text/plain; charset=iso-8859-1; format=flowed

Hi all!
I decided a while ago to use static libraries with vtk (earlier I used
dynamically linkend) and I have had a few examples working with the static
libraries. I am using Visual studio .net and I am pretty sure that I have
included all the libraries in a correct way. Now when we started working on
a new project I keep getting these errors that I don't understand.
I have looked through the mailing list for problems of the same kind, but no
luck there. So therefor I decided to send out an e-mail in hope that someone
else ran into this problem.
Please let me know if you know what I am missing out on. Here are my errors:

Compiling resources...
Linking...
vtkRendering.lib(vtkOpenGLFreeTypeTextMapper.obj) : error LNK2019:
unresolved external symbol "public: float __thiscall FTFont::Advance(char
const *)" (?Advance at FTFont@@QAEMPBD at Z) referenced in function "public:
virtual void __thiscall vtkOpenGLFreeTypeTextMapper::GetSize(class
vtkViewport *,int * const)"
(?GetSize at vtkOpenGLFreeTypeTextMapper@@UAEXPAVvtkViewport@@QAH at Z)
vtkRendering.lib(vtkOpenGLFreeTypeTextMapper.obj) : error LNK2019:
unresolved external symbol "public: void __thiscall FTFont::BBox(char const
*,float &,float &,float &,float &,float &,float &)"
(?BBox at FTFont@@QAEXPBDAAM11111 at Z) referenced in function "public: virtual
void __thiscall vtkOpenGLFreeTypeTextMapper::GetSize(class vtkViewport *,int
* const)" (?GetSize at vtkOpenGLFreeTypeTextMapper@@UAEXPAVvtkViewport@@QAH at Z)
vtkRendering.lib(vtkFreeTypeUtilities.obj) : error LNK2019: unresolved
external symbol "public: static class FTLibrary * __cdecl
FTLibrary::GetInstance(void)" (?GetInstance at FTLibrary@@SAPAV1 at XZ) referenced
in function "public: struct FT_LibraryRec_ * * __thiscall
vtkFreeTypeUtilities::GetLibrary(void)"
(?GetLibrary at vtkFreeTypeUtilities@@QAEPAPAUFT_LibraryRec_@@XZ)
vtkRendering.lib(vtkFreeTypeUtilities.obj) : error LNK2019: unresolved
external symbol _FT_Set_Transform referenced in function
_vtkFreeTypeUtilitiesFaceRequester
vtkRendering.lib(vtkFreeTypeUtilities.obj) : error LNK2019: unresolved
external symbol _FT_New_Memory_Face referenced in function
_vtkFreeTypeUtilitiesFaceRequester
vtkRendering.lib(vtkFreeTypeUtilities.obj) : error LNK2019: unresolved
external symbol _FTC_Manager_Done referenced in function "private: void
__thiscall vtkFreeTypeUtilities::ReleaseCacheManager(void)"
(?ReleaseCacheManager at vtkFreeTypeUtilities@@AAEXXZ)
vtkRendering.lib(vtkFreeTypeUtilities.obj) : error LNK2019: unresolved
external symbol "public: bool __thiscall FTFont::FaceSize(unsigned
int,unsigned int)" (?FaceSize at FTFont@@QAE_NII at Z) referenced in function
"public: struct vtkFreeTypeUtilities::Entry * __thiscall
vtkFreeTypeUtilities::GetFont(class vtkTextProperty *,double * const)"
(?GetFont at vtkFreeTypeUtilities@@QAEPAUEntry at 1@PAVvtkTextProperty@@QAN at Z)
vtkRendering.lib(vtkFreeTypeUtilities.obj) : error LNK2019: unresolved
external symbol "public: __thiscall FTGLPixmapFont::FTGLPixmapFont(void)"
(??0FTGLPixmapFont@@QAE at XZ) referenced in function "public: struct
vtkFreeTypeUtilities::Entry * __thiscall vtkFreeTypeUtilities::GetFont(class
vtkTextProperty *,double * const)"
(?GetFont at vtkFreeTypeUtilities@@QAEPAUEntry at 1@PAVvtkTextProperty@@QAN at Z)
vtkRendering.lib(vtkFreeTypeUtilities.obj) : error LNK2019: unresolved
external symbol "public: static void __cdecl
FTLibraryCleanup::AddDependency(void (__cdecl*)(void))"
(?AddDependency at FTLibraryCleanup@@SAXP6AXXZ at Z) referenced in function
"public: __thiscall
vtkFreeTypeUtilitiesCleanup::vtkFreeTypeUtilitiesCleanup(void)"
(??0vtkFreeTypeUtilitiesCleanup@@QAE at XZ)
vtkRendering.lib(vtkFreeTypeUtilities.obj) : error LNK2019: unresolved
external symbol _FTC_CMapCache_New referenced in function "private: void
__thiscall vtkFreeTypeUtilities::InitializeCacheManager(void)"
(?InitializeCacheManager at vtkFreeTypeUtilities@@AAEXXZ)
vtkRendering.lib(vtkFreeTypeUtilities.obj) : error LNK2019: unresolved
external symbol _FTC_ImageCache_New referenced in function "private: void
__thiscall vtkFreeTypeUtilities::InitializeCacheManager(void)"
(?InitializeCacheManager at vtkFreeTypeUtilities@@AAEXXZ)
vtkRendering.lib(vtkFreeTypeUtilities.obj) : error LNK2019: unresolved
external symbol _FTC_Manager_New referenced in function "private: void
__thiscall vtkFreeTypeUtilities::InitializeCacheManager(void)"
(?InitializeCacheManager at vtkFreeTypeUtilities@@AAEXXZ)
vtkRendering.lib(vtkFreeTypeUtilities.obj) : error LNK2019: unresolved
external symbol _FTC_Manager_LookupSize referenced in function "public: int
__thiscall vtkFreeTypeUtilities::GetSize(unsigned long,int,struct
FT_SizeRec_ * *)"
(?GetSize at vtkFreeTypeUtilities@@QAEHKHPAPAUFT_SizeRec_@@@Z)
vtkRendering.lib(vtkFreeTypeUtilities.obj) : error LNK2019: unresolved
external symbol _FTC_Manager_LookupFace referenced in function "public: int
__thiscall vtkFreeTypeUtilities::GetFace(unsigned long,struct FT_FaceRec_ *
*)" (?GetFace at vtkFreeTypeUtilities@@QAEHKPAPAUFT_FaceRec_@@@Z)
vtkRendering.lib(vtkFreeTypeUtilities.obj) : error LNK2019: unresolved
external symbol _FTC_CMapCache_Lookup referenced in function "public: int
__thiscall vtkFreeTypeUtilities::GetGlyphIndex(unsigned long,char,unsigned
int *)" (?GetGlyphIndex at vtkFreeTypeUtilities@@QAEHKDPAI at Z)
vtkRendering.lib(vtkFreeTypeUtilities.obj) : error LNK2019: unresolved
external symbol _FTC_ImageCache_Lookup referenced in function "public: int
__thiscall vtkFreeTypeUtilities::GetGlyph(unsigned long,int,unsigned
int,struct FT_GlyphRec_ * *,int)"
(?GetGlyph at vtkFreeTypeUtilities@@QAEHKHIPAPAUFT_GlyphRec_@@H at Z)
vtkRendering.lib(vtkFreeTypeUtilities.obj) : error LNK2019: unresolved
external symbol _FT_Get_Kerning referenced in function "public: int
__thiscall vtkFreeTypeUtilities::GetBoundingBox(class vtkTextProperty *,char
const *,int * const)"
(?GetBoundingBox at vtkFreeTypeUtilities@@QAEHPAVvtkTextProperty@@PBDQAH at Z)
Release/WinApp.exe : fatal error LNK1120: 17 unresolved externals

Build log was saved at
"file://c:\Mirelle\20041019\WinApp_Peter\Release\BuildLog.htm"
WinApp - 18 error(s), 0 warning(s)


---------------------- Done ----------------------

    Rebuild All: 0 succeeded, 1 failed, 0 skipped


Kind regards,
Mirelle Mellqvist

_________________________________________________________________
Ldttare att hitta drvmresan med MSN Resor http://www.msn.se/resor/



------------------------------

Message: 6
Date: Tue, 19 Oct 2004 16:53:07 +1000 (EST)
From: s comp <sscomp2004 at yahoo.com.au>
Subject: [vtkusers] vtkExtractEdges actor does not respond to
	SetOpacity,	is there a fix or workaround for this
To: vtkusers at vtk.org
Message-ID: <20041019065307.18929.qmail at web61104.mail.yahoo.com>
Content-Type: text/plain; charset="iso-8859-1"

Hi,

I would like to make an edges actor transparent but

[edgeActor GetProperty] SetOpacity 0.1

does not work.

Is there another way to achieve this, or has it been fixed in new versions
of vtk?, I am using 4.2.?? windows binary distribution

(I would rather not upgrade at the moment if possible)

Thanks,

Sonam



---------------------------------
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------------------------------

Message: 7
Date: Tue, 19 Oct 2004 11:33:51 +0500
From: "Manoj Kumar Singh" <manoj at bhu.ac.in>
Subject: Re: [vtkusers] problem compiling  vtk-4.5.0  on fedora core 2
To: vtkusers at vtk.org
Message-ID: <155ec19adb.19adb155ec at mail.bhu.ac.in>
Content-Type: text/plain; charset=us-ascii



----- Original Message -----
From: Mathieu Malaterre <mathieu.malaterre at kitware.com>
Date: Tuesday, October 12, 2004 7:54 pm
Subject: Re: [vtkusers] problem compiling  vtk-4.5.0  on fedora core 2

> Manoj,
>
>    could you run the make command in verbose mode:
>
> make VERBOSE=1
>
> And send me the compilation line that fail.
>
> Thanks
> Mathieu
Last few lines from running 'make VERBOSE=1' are :
make[3]: Entering directory `/usr/src/redhat/BUILD/VTK/Wrapping/Python'
Building executable /usr/src/redhat/BUILD/VTK/bin/vtkpython...
g++ -O2 -g -pipe -march=i386 -mcpu=i686 -Wno-deprecated
-Wno-deprecated -fPIC vtkPythonAppInit.o -o
/usr/src/redhat/BUILD/VTK/bin/vtkpython -rdynamic -L.
-L/usr/src/redhat/BUILD/VTK/lib -L/usr/lib/python2.3/config
-L/usr/X11R6/lib -lpython2.3 -lvtkCommon -lvtkFiltering -lvtkIO
-lvtkGraphics -lvtkImaging -lvtkzlib -lutil -lvtkRendering -lvtkPatented
-lvtkHybrid -lvtkParallel -lvtkPatented -lvtkRendering -lvtkGraphics
-lvtkImaging -lvtkftgl -lvtkfreetype -lGL -lXt -lSM -lICE -lSM -lICE
-lSM -lICE -lX11 -lXext -lX11 -lXext -lX11 -lXext -lvtkIO -lvtkFiltering
-lvtkCommon -lpthread -ldl -lm -lvtkDICOMParser -lvtkpng -lvtktiff
-lvtkzlib -lvtkjpeg -lvtkexpat
/usr/lib/python2.3/config/libpython2.3.a(posixmodule.o)(.text+0x410e):
In function `posix_tmpnam':
: warning: the use of `tmpnam_r' is dangerous, better use `mkstemp'
/usr/lib/python2.3/config/libpython2.3.a(posixmodule.o)(.text+0x4039):
In function `posix_tempnam':
: warning: the use of `tempnam' is dangerous, better use `mkstemp'
/usr/src/redhat/BUILD/VTK/lib/libvtkRendering.so: undefined reference to
`crc32'/usr/src/redhat/BUILD/VTK/lib/libvtkRendering.so: undefined
reference to `compress'
collect2: ld returned 1 exit status
make[3]: *** [/usr/src/redhat/BUILD/VTK/bin/vtkpython] Error 1
make[3]: Leaving directory `/usr/src/redhat/BUILD/VTK/Wrapping/Python'
make[2]: *** [default_target] Error 2
make[2]: Leaving directory `/usr/src/redhat/BUILD/VTK/Wrapping/Python'
make[1]: *** [default_target_Wrapping_Python] Error 2
make[1]: Leaving directory `/usr/src/redhat/BUILD/VTK'
make: *** [default_target] Error 2

Thanks
  Manoj
>
> >>>_______________________________________________
> >>>This is the private VTK discussion list.
> >>>Please keep messages on-topic. Check the FAQ at: <"
> >>
> >>target="l">" target="l">http://public.kitware.com/cgi-bin/vtkfaq>
> >>
> >>>Follow this link to subscribe/unsubscribe:
> >>>http://www.vtk.org/mailman/listinfo/vtkusers
> >>>
> >>
> >>
> >>
> >>
> >
> >
>
>
>
>



------------------------------

Message: 8
Date: Tue, 19 Oct 2004 16:25:04 +0800 (CST)
From: " zfjgo " <zfjgo at 126.com>
Subject: [vtkusers] How to transform a ImageData to BMP type?
To: vtkusers at vtk.org
Message-ID: <4174CF60.00001C.15765 at m59.126.com>
Content-Type: text/plain; charset="gb2312"



Now I have a ImageData file,but I don't know its data type,I want to
transform it to BMP type.How to do?
Thanks for your reply.



-----------------------------------------------------------
MxRW126W(R55gWSSJ>V#,N*DzLa9)W?T=5gWSSJ<~7~Nq#,http://www.126.com/
H+9zWn4s5DCb7QSJOd#,260UW?U<d12UW8=<~#,G?A&I16>74@,;x#,=gCfN^9c8f

------------------------------

Message: 9
Date: Tue, 19 Oct 2004 16:48:28 +0800 (CST)
From: " zfjgo " <zfjgo at 126.com>
Subject: [vtkusers] Seek User "shijith"!
To: vtkusers at vtk.org
Message-ID: <4174D4DC.000158.21432 at m58.126.com>
Content-Type: text/plain; charset="gb2312"

Hello  shijith

I encounter the same problem as you now.That is VTK in MFC.
So I am eager to contact with you.
My Email Add.    zfjgo at 126.com





-----------------------------------------------------------
MxRW126W(R55gWSSJ>V#,N*DzLa9)W?T=5gWSSJ<~7~Nq#,http://www.126.com/
H+9zWn4s5DCb7QSJOd#,260UW?U<d12UW8=<~#,G?A&I16>74@,;x#,=gCfN^9c8f

------------------------------

_______________________________________________
vtkusers mailing list
vtkusers at vtk.org
http://www.vtk.org/mailman/listinfo/vtkusers


End of vtkusers Digest, Vol 6, Issue 38
***************************************




From BN.Krishnaswamy at siemens.com  Tue Oct 19 08:52:18 2004
From: BN.Krishnaswamy at siemens.com (Krishnaswamy BN)
Date: Tue, 19 Oct 2004 18:22:18 +0530
Subject: [vtkusers] stack overflow in vc++
Message-ID: <037B536F875D9F4CA23B747E40FCF97B03978C51@blrk001a.sisl.co.in>


 
hi Vivek,
I'm facing the same problem. Please pull me out of this problem, if you know
the solution.
Thanks a lot in advance.
Here is few details:
 
probepages:

sub ecx,_PAGESIZE_ ; yes, move down a page

sub eax,_PAGESIZE_ ; adjust request and...

test dword ptr [ecx],eax ; ...probe it

cmp eax,_PAGESIZE_ ; more than one page requested?

jae short probepages ; no

Bijawara N Krishnaswamy 
Siemens Information System Ltd., 
#43, Keonics Electronics City 
Hosur road, Bangalore-100 
Extn: 3529 

 
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From BN.Krishnaswamy at siemens.com  Tue Oct 19 11:11:32 2004
From: BN.Krishnaswamy at siemens.com (Krishnaswamy BN)
Date: Tue, 19 Oct 2004 20:41:32 +0530
Subject: [vtkusers] stack overflow in vc++
Message-ID: <037B536F875D9F4CA23B747E40FCF97B03978EA2@blrk001a.sisl.co.in>

hi Vivek,
I'm facing the same problem. Please pull me out of this problem, if you know
the solution.
Thanks a lot in advance.
Here is few details:
 
probepages:

sub ecx,_PAGESIZE_ ; yes, move down a page

sub eax,_PAGESIZE_ ; adjust request and...

test dword ptr [ecx],eax ; ...probe it

cmp eax,_PAGESIZE_ ; more than one page requested?

jae short probepages ; no

Bijawara N Krishnaswamy 
Siemens Information System Ltd., 
#43, Keonics Electronics City 
Hosur road, Bangalore-100 
Extn: 3529 

 

Bijawara N Krishnaswamy 
Siemens Information System Ltd., 
#43, Keonics Electronics City 
Hosur road, Bangalore-100 
Extn: 3529 

 
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From sscomp2004 at yahoo.com.au  Tue Oct 19 13:32:53 2004
From: sscomp2004 at yahoo.com.au (s comp)
Date: Wed, 20 Oct 2004 03:32:53 +1000 (EST)
Subject: [vtkusers] What's wrong with my script?
Message-ID: <20041019173253.20441.qmail@web61106.mail.yahoo.com>

Hi all,
 
any help would be appreciated.
 
The relevant section is shown below
I am trying to contour two different sets of scalar point attributes, stored on the same grid, but it always produces 2 contours of the one set of scalar data (In this case since both isovalues are the same just the one contour is seen)
 
Thanks,
 
sonam
 
$octreeSource SetScalarsName "psf1"
$octreeSource Update
 
vtkContourFilter cf
  cf SetInput  [$octreeSource GetOutput]
  cf SetValue 0 0
 vtkPolyDataMapper contoursMapper
  contoursMapper SetInput [cf GetOutput]
 vtkActor contours
  contours SetMapper contoursMapper
 
$octreeSource SetScalarsName "psf2"
$octreeSource Update


vtkContourFilter cf2
  cf2 SetInput  [$octreeSource GetOutput]
  cf2 SetValue 0 0
 vtkPolyDataMapper contoursMapper2
  contoursMapper2 SetInput [cf2 GetOutput]
 vtkActor contours2
  contours2 SetMapper contoursMapper2

  



---------------------------------
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From pallavi.joshi at vanderbilt.edu  Tue Oct 19 14:11:41 2004
From: pallavi.joshi at vanderbilt.edu (Pallavi Joshi)
Date: Tue, 19 Oct 2004 13:11:41 -0500
Subject: [vtkusers] vtkImageStencil
Message-ID: <000a01c4b607$15ff0f80$da593b81@Pallavi>

Hi,
Does vtkImageStencil use interpolation  to create its output?  I am using my stencil as a vtkPolydata and i want a binary mask as an output but the output has gray scale values. Is this because of interpolation ? What can be the possible reason for it ?

thanks,
Pallavi

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From Charles.Boivin at rwdiwest.com  Tue Oct 19 14:35:56 2004
From: Charles.Boivin at rwdiwest.com (Charles Boivin)
Date: Tue, 19 Oct 2004 12:35:56 -0600
Subject: [vtkusers] What's wrong with my script?
Message-ID: <s1750a47.040@mailwest.rwdiwest.com>

Hi Sonam,

I am no VTK expert, but here is where I think the source of your
problem is:

Look at:

vtkContourFilter cf
  cf SetInput  [$octreeSource GetOutput]
  cf SetValue 0 0
 
and:

vtkContourFilter cf2
  cf2 SetInput  [$octreeSource GetOutput]
  cf2 SetValue 0 0


You set the input of both cf and cf2 to the output of octreeSource.
That output is a pointer. By calling octreeSource->SetScalarsName(), you
change the values that are referenced by that pointer, but the pointer
itself does *not* change. Are both contours of the second scalar? If
that is the case, it confirms what I was thinking... Basically, the
contour filter does not store which scalar is active when you make a
call to its SetInput. It simply copies the pointer, and will do the
actual contouring on the active scalar at the moment it is computed
(which, presumably, will be at the same time for both contour filters).

The way I've handled this (on both structured and unstructured grids),
is by writing a filter that extracts a single array out of multiple
ones. By using, say two, "extraction" modules, each of their GetOutput()
*is* different, and I can then display separate values. Now, this might
not be the most efficient way to do things, but this module actually
does a few more things for me, so that's the way I have done things.

Hope this helps,

Charles Boivin

>>> s comp <sscomp2004 at yahoo.com.au> 10/19/04 11:32am >>>
Hi all,
 
any help would be appreciated.
 
The relevant section is shown below
I am trying to contour two different sets of scalar point attributes,
stored on the same grid, but it always produces 2 contours of the one
set of scalar data (In this case since both isovalues are the same just
the one contour is seen)
 
Thanks,
 
sonam
 
$octreeSource SetScalarsName "psf1"
$octreeSource Update
 
vtkContourFilter cf
  cf SetInput  [$octreeSource GetOutput]
  cf SetValue 0 0
 vtkPolyDataMapper contoursMapper
  contoursMapper SetInput [cf GetOutput]
 vtkActor contours
  contours SetMapper contoursMapper
 
$octreeSource SetScalarsName "psf2"
$octreeSource Update


vtkContourFilter cf2
  cf2 SetInput  [$octreeSource GetOutput]
  cf2 SetValue 0 0
 vtkPolyDataMapper contoursMapper2
  contoursMapper2 SetInput [cf2 GetOutput]
 vtkActor contours2
  contours2 SetMapper contoursMapper2

  



---------------------------------
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From tahmaseb at cs.queensu.ca  Tue Oct 19 15:29:33 2004
From: tahmaseb at cs.queensu.ca (Amir M. Tahmasebi)
Date: Tue, 19 Oct 2004 15:29:33 -0400
Subject: [vtkusers] Two vtk rendering windows and one vtk renderer
Message-ID: <025e01c4b611$f69118e0$cd070f82@damavand>

Hi,
I am dealing with two separate vtkrendering windows and they both should show the same vtkrenderer. One of them is interactive and the other one not. So basically, the other one will be only for visualization. 
The problem is that, it doesnt render the object in the interactive window as real time. So it only shows the result of mouse interaction at the end of action and by refreshing the screen. and the other one, updates whenever the first is updated. Can anybody help me how to solve this problem?

Thanks a lot
Amir M. Tahmasebi
Medical Computing Lab
School of Computing
Queen's University
Goodwin Hall
Kingston, ON
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From briprowe at yahoo.com  Tue Oct 19 16:37:15 2004
From: briprowe at yahoo.com (Brian Rowe)
Date: Tue, 19 Oct 2004 13:37:15 -0700 (PDT)
Subject: [vtkusers] CrystalEyes stereo on mac os x
Message-ID: <20041019203715.61893.qmail@web14930.mail.yahoo.com>

Has anyone had success with crystaleyes stereo mode on
mac os x?

=====
1.79 x 10^12 furlongs per fortnight -- it's not just a good idea, it's the law!
Check out my weblog -- http://phasechange.blogspot.com


		
_______________________________
Do you Yahoo!?
Declare Yourself - Register online to vote today!
http://vote.yahoo.com


From sscomp2004 at yahoo.com.au  Tue Oct 19 22:44:11 2004
From: sscomp2004 at yahoo.com.au (s comp)
Date: Wed, 20 Oct 2004 12:44:11 +1000 (EST)
Subject: [vtkusers] What's wrong with my script?
In-Reply-To: <s1750a47.041@mailwest.rwdiwest.com>
Message-ID: <20041020024411.95070.qmail@web61104.mail.yahoo.com>

HI Charles,
 
Thanks for the advice, but I'm not sure how to go about creating these "extraction" modules, I tried by creating two separate readers that both read from the same file, but this did not work either, I really think it should, but I am very much a begginer in VTK so I don't understand how everything works yet.
 
Thanks,
 
Sonam

Charles Boivin <Charles.Boivin at rwdiwest.com> wrote:
Hi Sonam,

I am no VTK expert, but here is where I think the source of your
problem is:

Look at:

vtkContourFilter cf
cf SetInput [$octreeSource GetOutput]
cf SetValue 0 0

and:

vtkContourFilter cf2
cf2 SetInput [$octreeSource GetOutput]
cf2 SetValue 0 0


You set the input of both cf and cf2 to the output of octreeSource.
That output is a pointer. By calling octreeSource->SetScalarsName(), you
change the values that are referenced by that pointer, but the pointer
itself does *not* change. Are both contours of the second scalar? If
that is the case, it confirms what I was thinking... Basically, the
contour filter does not store which scalar is active when you make a
call to its SetInput. It simply copies the pointer, and will do the
actual contouring on the active scalar at the moment it is computed
(which, presumably, will be at the same time for both contour filters).

The way I've handled this (on both structured and unstructured grids),
is by writing a filter that extracts a single array out of multiple
ones. By using, say two, "extraction" modules, each of their GetOutput()
*is* different, and I can then display separate values. Now, this might
not be the most efficient way to do things, but this module actually
does a few more things for me, so that's the way I have done things.

Hope this helps,

Charles Boivin





---------------------------------
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From sscomp2004 at yahoo.com.au  Wed Oct 20 00:44:34 2004
From: sscomp2004 at yahoo.com.au (s comp)
Date: Wed, 20 Oct 2004 14:44:34 +1000 (EST)
Subject: [vtkusers] Is there a way of varying the brightness or colour of
	objects with distance from the camera?
Message-ID: <20041020044434.26895.qmail@web61104.mail.yahoo.com>

Hi all,
 
Is there a way of varying the brightness or colour of objects with distance from the camera? Perhaps there is a colour type that is a function of distance from object?
 
Thanks,
 
Sonam



---------------------------------
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From pallavi.joshi at vanderbilt.edu  Wed Oct 20 00:50:49 2004
From: pallavi.joshi at vanderbilt.edu (Pallavi Joshi)
Date: Tue, 19 Oct 2004 23:50:49 -0500
Subject: [vtkusers] Is there a way to change the origin of a vktPolyData ?
Message-ID: <001401c4b660$5effbaf0$da593b81@Pallavi>

Hi,
Is there a way to change the origin of the vtkPolydata object ? I have a code that deforms a mesh. This mesh has its origin at its center. Now I am using it in another function where I want the origin of the same mesh to be at (0,0,0). How can I do this ?

Please help,

Thanks,
--Pallavi
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From shivanna.prashanth at wipro.com  Wed Oct 20 01:55:52 2004
From: shivanna.prashanth at wipro.com (shivanna.prashanth at wipro.com)
Date: Wed, 20 Oct 2004 11:25:52 +0530
Subject: [vtkusers] Mouse interaction on an overlay plane
Message-ID: <FDBA3288011F564FA432D9FAF4083C95015F5115@blr-ecwhs-msg.wipro.com>


Hi All,
  Is there a way to have a mouse based interaction for overlay plane. My
requirement is to draw lines over a image and should be able to pan the
drawn lines to the desired position
on the image, using mouse. Any pointers to the solution would be
helpful.

Thanks & Regards
Prashanth




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From arbvtk at yahoo.fr  Wed Oct 20 04:31:28 2004
From: arbvtk at yahoo.fr (=?iso-8859-1?q?REGAT-BARREL=20Aur=E9lien?=)
Date: Wed, 20 Oct 2004 10:31:28 +0200 (CEST)
Subject: [vtkusers] Static library problem
In-Reply-To: <BAY1-F22R1JBjbUf9Sp00003a32@hotmail.com>
Message-ID: <20041020083128.50510.qmail@web25202.mail.ukl.yahoo.com>

Hi Mirelle,
Read carefully the errors :
unresolved external symbol "public: float __thiscall FTFont
unresolved external symbol "public: static class FTLibrary * __cdecl 
(vtkFreeTypeUtilities.obj) : error LNK2019: unresolved external symbol "public: bool __thiscall FTFont
=> FTFont, FTLibrary, ...
Did you include vtkfreetype.lib and vtkftgl.lib ?

Mirelle Mellqvist <mirelle_mellqvist at hotmail.com> wrote:
Hi all!
I decided a while ago to use static libraries with vtk (earlier I used 
dynamically linkend) and I have had a few examples working with the static 
libraries. I am using Visual studio .net and I am pretty sure that I have 
included all the libraries in a correct way. Now when we started working on 
a new project I keep getting these errors that I don't understand.
I have looked through the mailing list for problems of the same kind, but no 
luck there. So therefor I decided to send out an e-mail in hope that someone 
else ran into this problem.
Please let me know if you know what I am missing out on. Here are my errors:

Compiling resources...
Linking...
vtkRendering.lib(vtkOpenGLFreeTypeTextMapper.obj) : error LNK2019: 
unresolved external symbol "public: float __thiscall FTFont::Advance(char 
const *)" (?Advance at FTFont@@QAEMPBD at Z) referenced in function "public: 
virtual void __thiscall vtkOpenGLFreeTypeTextMapper::GetSize(class 
vtkViewport *,int * const)" 
(?GetSize at vtkOpenGLFreeTypeTextMapper@@UAEXPAVvtkViewport@@QAH at Z)
vtkRendering.lib(vtkOpenGLFreeTypeTextMapper.obj) : error LNK2019: 
unresolved external symbol "public: void __thiscall FTFont::BBox(char const 
*,float &,float &,float &,float &,float &,float &)" 
(?BBox at FTFont@@QAEXPBDAAM11111 at Z) referenced in function "public: virtual 
void __thiscall vtkOpenGLFreeTypeTextMapper::GetSize(class vtkViewport *,int 
* const)" (?GetSize at vtkOpenGLFreeTypeTextMapper@@UAEXPAVvtkViewport@@QAH at Z)
vtkRendering.lib(vtkFreeTypeUtilities.obj) : error LNK2019: unresolved 
external symbol "public: static class FTLibrary * __cdecl 
FTLibrary::GetInstance(void)" (?GetInstance at FTLibrary@@SAPAV1 at XZ) referenced 
in function "public: struct FT_LibraryRec_ * * __thiscall 
vtkFreeTypeUtilities::GetLibrary(void)" 
(?GetLibrary at vtkFreeTypeUtilities@@QAEPAPAUFT_LibraryRec_@@XZ)
vtkRendering.lib(vtkFreeTypeUtilities.obj) : error LNK2019: unresolved 
external symbol _FT_Set_Transform referenced in function 
_vtkFreeTypeUtilitiesFaceRequester
vtkRendering.lib(vtkFreeTypeUtilities.obj) : error LNK2019: unresolved 
external symbol _FT_New_Memory_Face referenced in function 
_vtkFreeTypeUtilitiesFaceRequester
vtkRendering.lib(vtkFreeTypeUtilities.obj) : error LNK2019: unresolved 
external symbol _FTC_Manager_Done referenced in function "private: void 
__thiscall vtkFreeTypeUtilities::ReleaseCacheManager(void)" 
(?ReleaseCacheManager at vtkFreeTypeUtilities@@AAEXXZ)
vtkRendering.lib(vtkFreeTypeUtilities.obj) : error LNK2019: unresolved 
external symbol "public: bool __thiscall FTFont::FaceSize(unsigned 
int,unsigned int)" (?FaceSize at FTFont@@QAE_NII at Z) referenced in function 
"public: struct vtkFreeTypeUtilities::Entry * __thiscall 
vtkFreeTypeUtilities::GetFont(class vtkTextProperty *,double * const)" 
(?GetFont at vtkFreeTypeUtilities@@QAEPAUEntry at 1@PAVvtkTextProperty@@QAN at Z)
vtkRendering.lib(vtkFreeTypeUtilities.obj) : error LNK2019: unresolved 
external symbol "public: __thiscall FTGLPixmapFont::FTGLPixmapFont(void)" 
(??0FTGLPixmapFont@@QAE at XZ) referenced in function "public: struct 
vtkFreeTypeUtilities::Entry * __thiscall vtkFreeTypeUtilities::GetFont(class 
vtkTextProperty *,double * const)" 
(?GetFont at vtkFreeTypeUtilities@@QAEPAUEntry at 1@PAVvtkTextProperty@@QAN at Z)
vtkRendering.lib(vtkFreeTypeUtilities.obj) : error LNK2019: unresolved 
external symbol "public: static void __cdecl 
FTLibraryCleanup::AddDependency(void (__cdecl*)(void))" 
(?AddDependency at FTLibraryCleanup@@SAXP6AXXZ at Z) referenced in function 
"public: __thiscall 
vtkFreeTypeUtilitiesCleanup::vtkFreeTypeUtilitiesCleanup(void)" 
(??0vtkFreeTypeUtilitiesCleanup@@QAE at XZ)
vtkRendering.lib(vtkFreeTypeUtilities.obj) : error LNK2019: unresolved 
external symbol _FTC_CMapCache_New referenced in function "private: void 
__thiscall vtkFreeTypeUtilities::InitializeCacheManager(void)" 
(?InitializeCacheManager at vtkFreeTypeUtilities@@AAEXXZ)
vtkRendering.lib(vtkFreeTypeUtilities.obj) : error LNK2019: unresolved 
external symbol _FTC_ImageCache_New referenced in function "private: void 
__thiscall vtkFreeTypeUtilities::InitializeCacheManager(void)" 
(?InitializeCacheManager at vtkFreeTypeUtilities@@AAEXXZ)
vtkRendering.lib(vtkFreeTypeUtilities.obj) : error LNK2019: unresolved 
external symbol _FTC_Manager_New referenced in function "private: void 
__thiscall vtkFreeTypeUtilities::InitializeCacheManager(void)" 
(?InitializeCacheManager at vtkFreeTypeUtilities@@AAEXXZ)
vtkRendering.lib(vtkFreeTypeUtilities.obj) : error LNK2019: unresolved 
external symbol _FTC_Manager_LookupSize referenced in function "public: int 
__thiscall vtkFreeTypeUtilities::GetSize(unsigned long,int,struct 
FT_SizeRec_ * *)" 
(?GetSize at vtkFreeTypeUtilities@@QAEHKHPAPAUFT_SizeRec_@@@Z)
vtkRendering.lib(vtkFreeTypeUtilities.obj) : error LNK2019: unresolved 
external symbol _FTC_Manager_LookupFace referenced in function "public: int 
__thiscall vtkFreeTypeUtilities::GetFace(unsigned long,struct FT_FaceRec_ * 
*)" (?GetFace at vtkFreeTypeUtilities@@QAEHKPAPAUFT_FaceRec_@@@Z)
vtkRendering.lib(vtkFreeTypeUtilities.obj) : error LNK2019: unresolved 
external symbol _FTC_CMapCache_Lookup referenced in function "public: int 
__thiscall vtkFreeTypeUtilities::GetGlyphIndex(unsigned long,char,unsigned 
int *)" (?GetGlyphIndex at vtkFreeTypeUtilities@@QAEHKDPAI at Z)
vtkRendering.lib(vtkFreeTypeUtilities.obj) : error LNK2019: unresolved 
external symbol _FTC_ImageCache_Lookup referenced in function "public: int 
__thiscall vtkFreeTypeUtilities::GetGlyph(unsigned long,int,unsigned 
int,struct FT_GlyphRec_ * *,int)" 
(?GetGlyph at vtkFreeTypeUtilities@@QAEHKHIPAPAUFT_GlyphRec_@@H at Z)
vtkRendering.lib(vtkFreeTypeUtilities.obj) : error LNK2019: unresolved 
external symbol _FT_Get_Kerning referenced in function "public: int 
__thiscall vtkFreeTypeUtilities::GetBoundingBox(class vtkTextProperty *,char 
const *,int * const)" 
(?GetBoundingBox at vtkFreeTypeUtilities@@QAEHPAVvtkTextProperty@@PBDQAH at Z)
Release/WinApp.exe : fatal error LNK1120: 17 unresolved externals

Build log was saved at 
"file://c:\Mirelle\20041019\WinApp_Peter\Release\BuildLog.htm"
WinApp - 18 error(s), 0 warning(s)


---------------------- Done ----------------------

Rebuild All: 0 succeeded, 1 failed, 0 skipped


Kind regards,
Mirelle Mellqvist

_________________________________________________________________
L?ttare att hitta dr?mresan med MSN Resor http://www.msn.se/resor/

_______________________________________________
This is the private VTK discussion list. 
Please keep messages on-topic. Check the FAQ at: 
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Aur?lien REGAT-BARREL 
My VTK blog : http://aurelien_regat-barrel.blogspot.com


		
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From normand at lina.univ-nantes.fr  Wed Oct 20 07:02:17 2004
From: normand at lina.univ-nantes.fr (Jean-Marie Normand)
Date: Wed, 20 Oct 2004 11:02:17 +0000
Subject: [vtkusers] Questions on Boolean Ops & vtkPolyData merging
Message-ID: <1098270137.3799.23.camel@pago.irin.sciences.univ-nantes.prive>

Hi all!

I am new to VTK, and  I'm trying to use vtk to perform boolean
operations on polyData, it seems to be possible by using
vtkImplicitDataSet but I haven't been able to use it properly and I
haven't found many examples of it. 

I've searched in the archives of the mailing list and I saw that David
Pont had written a vtkImplicitPolyData class that could handle what I'd
like to do. I would be very glad if he (or someone else ;) could provide
me the code of this class and even better some examples on how to use
it.

Moreover since I failed using vtkImplicitDataSet, I tested the boolean
ops on some ImplicitFunctions, which worked very well, but I have a
question about the visualization of the resulting surfaces. Once I get
the implicit boolean, I declare a vtkSampleFunction which I think (but I
may be wrong) represent the distance function of the implicit function
nd afterwards I need a vtkContourFilter which will represent the
polgonal surface (I still may be wrong). 

My question is what does the vtkContourFilter::SetValue actually do, I
don't really understand what does the 2nd parameter represent, I know
this question may seems dumb but I'm not used working on Implicit
Functions, I usually work on volumic surfaces and polygonal datas.


I also wonder if it is possible to merge the geometry/topology of 2
vtkPolyData objects, I saw the vtkMergeFilter in the doc, but it seems
that you could only merge the geometry of one DataSet with the Scalars
or normals of antoher, but not with the geometry. I again may be wrong
since I'm really new to VTK.

I could provide further information if my questions are not clear
enough, any help would be greatly appreciated.
Thanks in advance.

Jim



From stout.jeremy at gmail.com  Wed Oct 20 10:27:50 2004
From: stout.jeremy at gmail.com (Jeremy Stout)
Date: Wed, 20 Oct 2004 10:27:50 -0400
Subject: [vtkusers] 'Undefined Reference' Error Message
Message-ID: <a6bc6cc04102007277b92dab4@mail.gmail.com>

Hello, I am trying to compile a VTK program with the following line:

g++ translator.cpp -otranslator -I/usr/local/include/vtk
-I/usr/local/packages/mpich/include -L /usr/local/
lib/vtk/ -lvtkParallel  -L /usr/local/packages/mpich/lib -lmpich -ldl

Unfortunately, this results in the following error messages:

In file included from /usr/include/c++/3.3.3/backward/strstream:51,
                 from /usr/local/include/vtk/vtkIOStream.h:36,
                 from /usr/local/include/vtk/vtkSystemIncludes.h:40,
                 from /usr/local/include/vtk/vtkIndent.h:24,
                 from /usr/local/include/vtk/vtkObjectBase.h:43,
                 from /usr/local/include/vtk/vtkObject.h:41,
                 from /usr/local/include/vtk/vtkMultiProcessController.h:40,
                 from /usr/local/include/vtk/vtkMPIController.h:43,
                 from translator.cpp:2:
/usr/include/c++/3.3.3/backward/backward_warning.h:32:2: warning:
#warning This file includes at least one deprecated or antiquated
header. Please consider using one of the 32 headers found in section
17.4.1.2 of the C++ standard. Examples include substituting the <X>
header for the <X.h> header for C++ includes, or <sstream> instead of
the deprecated header <strstream.h>. To disable this warning use
-Wno-deprecated.
/tmp/ccZVONeC.o(.text+0x11): In function `main':
: undefined reference to `vtkMPIController::New()'
/tmp/ccZVONeC.o(.text+0x36): In function `main':
: undefined reference to `vtkConeSource::New()'

The code for the program can be seen here:
#include "vtkMPIController.h"
#include "vtkConeSource.h"
#include "mpi.h"

using namespace std;

main(int argc, char* argv[])
        {
        vtkMPIController *controller;
        bool okToContinue;
        int numberOfProcesses;
        int myProcessID;

        controller = vtkMPIController::New();
        controller->Initialize(&argc, &argv);
        
        //Testing the Linker here
        vtkConeSource *test;
        test = vtkConeSource::New();
        
        numberOfProcesses = controller->GetNumberOfProcesses();
        myProcessID = controller->GetLocalProcessId();
        
        controller->Finalize();
        controller->Delete();
        }

I've tried several variations on linking options, including linking in
all of the vtk libraries.  If anyone could provide some assistance in
this matter, it would be greatly appreciated.

Jeremy Stout


From ngonzalez at rcm.upr.edu  Wed Oct 20 11:28:41 2004
From: ngonzalez at rcm.upr.edu (Nathaniel Gonzalez)
Date: Wed, 20 Oct 2004 11:28:41 -0400
Subject: [vtkusers] .raw Can't See Any Color
Message-ID: <1098286121.26271.28.camel@linux.site>

Hi:
I'm reading a raw image, this image is part of the human visible
project. When I display it I only see gray image. When I open the image
in photoshop with the following raw parameter Header 0, Width 2048,
Height 1216, Count 3, Bits 8, Interlaced No I get a full color image. If
any one knows what can be my error please let me know. This is how I'm
doing it.

vtkImageReader part
     part SetFileName "a_vm1002.raw"
     part SetDataSpacing 0.33 0.33 1.0
     part SetDataExtent 0 2047 0 1215 0 0
     part SetDataScalarTypeToUnsignedChar

 vtkImageActor imageActor
    imageActor SetInput [ part GetOutput ]

I don't know how to add the parameter Count or Interlaced.

Thanks for any help.

Nathaniel Gonzalez
Programmer
University of Puerto Rico
Medical Science Campus




From mathieu.malaterre at kitware.com  Wed Oct 20 11:43:19 2004
From: mathieu.malaterre at kitware.com (Mathieu Malaterre)
Date: Wed, 20 Oct 2004 11:43:19 -0400
Subject: [vtkusers] .raw Can't See Any Color
In-Reply-To: <1098286121.26271.28.camel@linux.site>
References: <1098286121.26271.28.camel@linux.site>
Message-ID: <41768797.8050400@kitware.com>

Nathaniel,

If the raw image is RGB, use:

SetNumberOfScalarComponents 3

http://www.vtk.org/doc/nightly/html/classvtkImageReader2.html#z2829_0

HTH
Mathieu

Nathaniel Gonzalez wrote:
> Hi:
> I'm reading a raw image, this image is part of the human visible
> project. When I display it I only see gray image. When I open the image
> in photoshop with the following raw parameter Header 0, Width 2048,
> Height 1216, Count 3, Bits 8, Interlaced No I get a full color image. If
> any one knows what can be my error please let me know. This is how I'm
> doing it.
> 
> vtkImageReader part
>      part SetFileName "a_vm1002.raw"
>      part SetDataSpacing 0.33 0.33 1.0
>      part SetDataExtent 0 2047 0 1215 0 0
>      part SetDataScalarTypeToUnsignedChar
> 
>  vtkImageActor imageActor
>     imageActor SetInput [ part GetOutput ]
> 
> I don't know how to add the parameter Count or Interlaced.
> 
> Thanks for any help.
> 
> Nathaniel Gonzalez
> Programmer
> University of Puerto Rico
> Medical Science Campus
> 
> 
> _______________________________________________
> This is the private VTK discussion list. 
> Please keep messages on-topic. Check the FAQ at: <http://public.kitware.com/cgi-bin/vtkfaq>
> Follow this link to subscribe/unsubscribe:
> http://www.vtk.org/mailman/listinfo/vtkusers
> 





From mathieu.malaterre at kitware.com  Wed Oct 20 11:42:36 2004
From: mathieu.malaterre at kitware.com (Mathieu Malaterre)
Date: Wed, 20 Oct 2004 11:42:36 -0400
Subject: [vtkusers] .raw Can't See Any Color
In-Reply-To: <1098286121.26271.28.camel@linux.site>
References: <1098286121.26271.28.camel@linux.site>
Message-ID: <4176876C.8090605@kitware.com>

Nathaniel,

If the raw is RGB, use:

SetNumberOfScalarComponents

http://www.vtk.org/doc/nightly/html/classvtkImageReader2.html#z2829_0

HTH
Mathieu

Nathaniel Gonzalez wrote:
> Hi:
> I'm reading a raw image, this image is part of the human visible
> project. When I display it I only see gray image. When I open the image
> in photoshop with the following raw parameter Header 0, Width 2048,
> Height 1216, Count 3, Bits 8, Interlaced No I get a full color image. If
> any one knows what can be my error please let me know. This is how I'm
> doing it.
> 
> vtkImageReader part
>      part SetFileName "a_vm1002.raw"
>      part SetDataSpacing 0.33 0.33 1.0
>      part SetDataExtent 0 2047 0 1215 0 0
>      part SetDataScalarTypeToUnsignedChar
> 
>  vtkImageActor imageActor
>     imageActor SetInput [ part GetOutput ]
> 
> I don't know how to add the parameter Count or Interlaced.
> 
> Thanks for any help.
> 
> Nathaniel Gonzalez
> Programmer
> University of Puerto Rico
> Medical Science Campus
> 
> 
> _______________________________________________
> This is the private VTK discussion list. 
> Please keep messages on-topic. Check the FAQ at: <http://public.kitware.com/cgi-bin/vtkfaq>
> Follow this link to subscribe/unsubscribe:
> http://www.vtk.org/mailman/listinfo/vtkusers
> 





From goodwin.lawlor at ucd.ie  Wed Oct 20 13:22:25 2004
From: goodwin.lawlor at ucd.ie (Goodwin Lawlor)
Date: Wed, 20 Oct 2004 18:22:25 +0100
Subject: [vtkusers] Re: .raw Can't See Any Color
References: <1098286121.26271.28.camel@linux.site>
	<41768797.8050400@kitware.com>
Message-ID: <cl66sg$hie$1@sea.gmane.org>

Hi Nathaniel,

The VHP images are raw planar... not interlaced the way vtkImageReader
expects. You are seeing a grayscale image because you are only reading in
the first (monochrome) channel out of three.

I have a tcl script to read in a raw vhp image and display it in colour. You
can get it here:

http://www.bioengineering-research.com/vtk/vhpreader.tcl

You can get some test images to play with here:
ftp://ftp.nlm.nih.gov/visible/bitmaps/color24/
Decompress them first!

I was going to write a small vtk/tcl app to read/view/crop/write vhp raw
images but time doesn't permit. This script was an initial test. There are
shareware apps out there that can batch convert raw planar images to bmp/png
that vtk can read directly.


hth

Goodwin


"Mathieu Malaterre" <mathieu.malaterre at kitware.com> wrote in message
news:41768797.8050400 at kitware.com...
> Nathaniel,
>
> If the raw image is RGB, use:
>
> SetNumberOfScalarComponents 3
>
> http://www.vtk.org/doc/nightly/html/classvtkImageReader2.html#z2829_0
>
> HTH
> Mathieu
>
> Nathaniel Gonzalez wrote:
> > Hi:
> > I'm reading a raw image, this image is part of the human visible
> > project. When I display it I only see gray image. When I open the image
> > in photoshop with the following raw parameter Header 0, Width 2048,
> > Height 1216, Count 3, Bits 8, Interlaced No I get a full color image. If
> > any one knows what can be my error please let me know. This is how I'm
> > doing it.
> >
> > vtkImageReader part
> >      part SetFileName "a_vm1002.raw"
> >      part SetDataSpacing 0.33 0.33 1.0
> >      part SetDataExtent 0 2047 0 1215 0 0
> >      part SetDataScalarTypeToUnsignedChar
> >
> >  vtkImageActor imageActor
> >     imageActor SetInput [ part GetOutput ]
> >
> > I don't know how to add the parameter Count or Interlaced.
> >
> > Thanks for any help.
> >
> > Nathaniel Gonzalez
> > Programmer
> > University of Puerto Rico
> > Medical Science Campus
> >
> >
> > _______________________________________________
> > This is the private VTK discussion list.
> > Please keep messages on-topic. Check the FAQ at:
<http://public.kitware.com/cgi-bin/vtkfaq>
> > Follow this link to subscribe/unsubscribe:
> > http://www.vtk.org/mailman/listinfo/vtkusers
> >
>
>
>
> _______________________________________________
> This is the private VTK discussion list.
> Please keep messages on-topic. Check the FAQ at:
<http://public.kitware.com/cgi-bin/vtkfaq>
> Follow this link to subscribe/unsubscribe:
> http://www.vtk.org/mailman/listinfo/vtkusers
>





From stout.jeremy at gmail.com  Wed Oct 20 15:17:21 2004
From: stout.jeremy at gmail.com (Jeremy Stout)
Date: Wed, 20 Oct 2004 15:17:21 -0400
Subject: [vtkusers] 'Undefined Reference' Error Message
In-Reply-To: <200410201819.i9KIJWok000954@apollo.sr.unh.edu>
References: <a6bc6cc04102007277b92dab4@mail.gmail.com>
	<200410201819.i9KIJWok000954@apollo.sr.unh.edu>
Message-ID: <a6bc6cc041020121717c388ee@mail.gmail.com>

Even when I use this command:

g++ translator.cpp -otranslator -I/usr/local/include/vtk
-I/usr/local/packages/mpich/include -L/usr/local/lib/vtk/ -lvtkCommon
-lvtkDICOMParser -lvtkParallel -lvtkIO -lvtkGraphics -lvtkFiltering
-lvtkHybrid -lvtkImaging -lvtkRendering -lvtkexpat -lvtkfreetype
-lvtkftgl -lvtkjpeg -lvtkpng -lvt
ktiff -lvtkzlib -L/usr/local/packages/mpich/lib -lmpich -ldl

I get:

/tmp/ccPx6BGK.o(.text+0x11): In function `main':
: undefined reference to `vtkMPIController::New()'
/tmp/ccPx6BGK.o(.text+0x36): In function `main':
: undefined reference to `vtkConeSource::New()'
collect2: ld returned 1 exit status

I have no idea what is causing the error and I can't continue work on
my program until I fix this. Thank you for your prompt response
though.

Jeremy Stout

On Wed, 20 Oct 2004 14:19:32 -0400, tom fogal <tfogal at apollo.sr.unh.edu> wrote:
> <a6bc6cc04102007277b92dab4 at mail.gmail.com>Jeremy Stout writes:
> >Hello, I am trying to compile a VTK program with the following line:
> >
> >g++ translator.cpp -otranslator -I/usr/local/include/vtk
> >-I/usr/local/packages/mpich/include -L /usr/local/
> >lib/vtk/ -lvtkParallel  -L /usr/local/packages/mpich/lib -lmpich -ldl
> 
> This is valid? I guess you learn something new everyday. I had always
> though you could not have a space between -L and its argument, but you
> seem to be using it and not getting link errors due to mpich...
> 
> >Unfortunately, this results in the following error messages:
> 
> <snip>
> 
> >/tmp/ccZVONeC.o(.text+0x11): In function `main':
> >: undefined reference to `vtkMPIController::New()'
> >/tmp/ccZVONeC.o(.text+0x36): In function `main':
> >: undefined reference to `vtkConeSource::New()'
> 
> You're forgetting to link in a library, my guess is vtkCommon. add in
> '-lvtkCommon' to your link line and see if that fixes it. I wouldve
> thought vtkMPIController would be in vtkParallel though...
> 
> HTH,
> 
> -tom
>


From ngonzalez at rcm.upr.edu  Wed Oct 20 15:55:10 2004
From: ngonzalez at rcm.upr.edu (=?Windows-1252?Q?Nathaniel_Gonz=E1lez?=)
Date: Wed, 20 Oct 2004 15:55:10 -0400
Subject: [vtkusers] Re: .raw Can't See Any Color
Message-ID: <3C8804C86547144E9C93270FAD9D8B4A01EA86A8@WEBMAIL.rcm.upr.edu>

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From mathieu.malaterre at kitware.com  Wed Oct 20 15:29:27 2004
From: mathieu.malaterre at kitware.com (Mathieu Malaterre)
Date: Wed, 20 Oct 2004 15:29:27 -0400
Subject: [vtkusers] 'Undefined Reference' Error Message
In-Reply-To: <a6bc6cc041020121717c388ee@mail.gmail.com>
References: <a6bc6cc04102007277b92dab4@mail.gmail.com>	<200410201819.i9KIJWok000954@apollo.sr.unh.edu>
	<a6bc6cc041020121717c388ee@mail.gmail.com>
Message-ID: <4176BC97.8010907@kitware.com>

Jeremy,

	What is the output of:

nm libvtkParallel.so| c++filt| grep vtkMPIController::New
and
nm libvtkGraphics.so| c++filt| grep vtkConeSource::New

I get:

0016d0b6 T vtkMPIController::New()
0016ea3c W vtkMPIController::NewInstanceInternal() const

and

000c821e T vtkConeSource::New()
000c9604 W vtkConeSource::NewInstanceInternal() const

If you don't get anything, that mean you didn't build VTK properly, turn 
MPI on for example

HTH
Mathieu


Jeremy Stout wrote:
> Even when I use this command:
> 
> g++ translator.cpp -otranslator -I/usr/local/include/vtk
> -I/usr/local/packages/mpich/include -L/usr/local/lib/vtk/ -lvtkCommon
> -lvtkDICOMParser -lvtkParallel -lvtkIO -lvtkGraphics -lvtkFiltering
> -lvtkHybrid -lvtkImaging -lvtkRendering -lvtkexpat -lvtkfreetype
> -lvtkftgl -lvtkjpeg -lvtkpng -lvt
> ktiff -lvtkzlib -L/usr/local/packages/mpich/lib -lmpich -ldl
> 
> I get:
> 
> /tmp/ccPx6BGK.o(.text+0x11): In function `main':
> : undefined reference to `vtkMPIController::New()'
> /tmp/ccPx6BGK.o(.text+0x36): In function `main':
> : undefined reference to `vtkConeSource::New()'
> collect2: ld returned 1 exit status
> 
> I have no idea what is causing the error and I can't continue work on
> my program until I fix this. Thank you for your prompt response
> though.
> 
> Jeremy Stout
> 
> On Wed, 20 Oct 2004 14:19:32 -0400, tom fogal <tfogal at apollo.sr.unh.edu> wrote:
> 
>><a6bc6cc04102007277b92dab4 at mail.gmail.com>Jeremy Stout writes:
>>
>>>Hello, I am trying to compile a VTK program with the following line:
>>>
>>>g++ translator.cpp -otranslator -I/usr/local/include/vtk
>>>-I/usr/local/packages/mpich/include -L /usr/local/
>>>lib/vtk/ -lvtkParallel  -L /usr/local/packages/mpich/lib -lmpich -ldl
>>
>>This is valid? I guess you learn something new everyday. I had always
>>though you could not have a space between -L and its argument, but you
>>seem to be using it and not getting link errors due to mpich...
>>
>>
>>>Unfortunately, this results in the following error messages:
>>
>><snip>
>>
>>>/tmp/ccZVONeC.o(.text+0x11): In function `main':
>>>: undefined reference to `vtkMPIController::New()'
>>>/tmp/ccZVONeC.o(.text+0x36): In function `main':
>>>: undefined reference to `vtkConeSource::New()'
>>
>>You're forgetting to link in a library, my guess is vtkCommon. add in
>>'-lvtkCommon' to your link line and see if that fixes it. I wouldve
>>thought vtkMPIController would be in vtkParallel though...
>>
>>HTH,
>>
>>-tom
>>
> 
> _______________________________________________
> This is the private VTK discussion list. 
> Please keep messages on-topic. Check the FAQ at: <http://public.kitware.com/cgi-bin/vtkfaq>
> Follow this link to subscribe/unsubscribe:
> http://www.vtk.org/mailman/listinfo/vtkusers
> 





From David.Pont at ForestResearch.co.nz  Wed Oct 20 16:11:11 2004
From: David.Pont at ForestResearch.co.nz (David.Pont at ForestResearch.co.nz)
Date: Thu, 21 Oct 2004 09:11:11 +1300
Subject: [vtkusers] Questions on Boolean Ops & vtkPolyData merging
In-Reply-To: <1098270137.3799.23.camel@pago.irin.sciences.univ-nantes.prive>
Message-ID: <OF4AD4FD84.F22ED27A-ONCC256F33.006D214A-CC256F33.006EFF1F@forestresearch.co.nz>





Hi Jim,

normand at lina.univ-nantes.fr wrote on 21/10/2004 00:02:17:

> Hi all!
>
> I am new to VTK, and  I'm trying to use vtk to perform boolean
> operations on polyData, it seems to be possible by using
> vtkImplicitDataSet but I haven't been able to use it properly and I
> haven't found many examples of it.
>
> I've searched in the archives of the mailing list and I saw that David
> Pont had written a vtkImplicitPolyData class that could handle what I'd
> like to do. I would be very glad if he (or someone else ;) could provide
> me the code of this class and even better some examples on how to use
> it.
>
I will send you the source code for vtkImplicitPolyData (off the list to
avoid unecessary traffic). It is a bit of a hack, usually does what is
expected, someday I might find time to develop it a bit further...

> Moreover since I failed using vtkImplicitDataSet, I tested the boolean
> ops on some ImplicitFunctions, which worked very well, but I have a
> question about the visualization of the resulting surfaces. Once I get
> the implicit boolean, I declare a vtkSampleFunction which I think (but I
> may be wrong) represent the distance function of the implicit function
> nd afterwards I need a vtkContourFilter which will represent the
> polgonal surface (I still may be wrong).
>
> My question is what does the vtkContourFilter::SetValue actually do, I
> don't really understand what does the 2nd parameter represent, I know
> this question may seems dumb but I'm not used working on Implicit
> Functions, I usually work on volumic surfaces and polygonal datas.
>
vtkSampleFunction evaluates an implicit function (or boolean combination)
over a regular 3D grid to give 'volume' type data. vtkContourFilter then
produces a surface at the given function value (SetValue). It interpolates
between point values and triangulates within the cubical cells of the grid.
I think I am right in saying this means you can also get a surface using
the vtkMarchingCubes filter(s). Hope that is clear.
Note that this is quite a brute force approach, the function is evaluated
at many positions, then just a few values are used to derive the surface.
The advantage is that multiple surfaces at different function values can be
generated, and this approach fits with the vtk philosophy of generality and
makes connection with many other vtk filters possible as 3D grid data is
well supported in vtk.
If you are interested I do have source code for an adaptive polygonizer
which takes an implicit function and produces a surface directly, ie
without generating a 3D grid first. There are tradeoffs between the two
approaches, to sum it up the adaptive approach can run in a similar time,
and can give a better surface...

>
> I also wonder if it is possible to merge the geometry/topology of 2
> vtkPolyData objects, I saw the vtkMergeFilter in the doc, but it seems
> that you could only merge the geometry of one DataSet with the Scalars
> or normals of antoher, but not with the geometry. I again may be wrong
> since I'm really new to VTK.
>
vtkAppendPolyData will lump two polydata sets together, it simply copies
all points and cells into a single dataset. Scalars, vectors and normals
are also copied if present in both datasets. This is a handy filter when
working with boolean operations.

  regards
      Dave Pont

> I could provide further information if my questions are not clear
> enough, any help would be greatly appreciated.
> Thanks in advance.
>
> Jim
>
> _______________________________________________
> This is the private VTK discussion list.
> Please keep messages on-topic. Check the FAQ at: <http://public.
> kitware.com/cgi-bin/vtkfaq>
> Follow this link to subscribe/unsubscribe:
> http://www.vtk.org/mailman/listinfo/vtkusers



From stout.jeremy at gmail.com  Wed Oct 20 16:12:49 2004
From: stout.jeremy at gmail.com (Jeremy Stout)
Date: Wed, 20 Oct 2004 16:12:49 -0400
Subject: [vtkusers] 'Undefined Reference' Error Message
In-Reply-To: <4176BC97.8010907@kitware.com>
References: <a6bc6cc04102007277b92dab4@mail.gmail.com>
	<200410201819.i9KIJWok000954@apollo.sr.unh.edu>
	<a6bc6cc041020121717c388ee@mail.gmail.com>
	<4176BC97.8010907@kitware.com>
Message-ID: <a6bc6cc04102013126d6d1a23@mail.gmail.com>

If I use those commands, here is what I get:

[stout at energy stout]$ cd /usr/local/lib/vtk
[stout at energy vtk]$ nm libvtkParallel.so| c++filt| grep vtkMPIController::New
0016db2c W vtkMPIController::NewInstanceInternal(void) const
0016db50 W vtkMPIController::NewInstance(void) const
00107000 T vtkMPIController::New(void)
[stout at energy vtk]$ nm libvtkGraphics.so| c++filt| grep vtkConeSource::New
001dcb34 W vtkConeSource::NewInstanceInternal(void) const
001dcb58 W vtkConeSource::NewInstance(void) const
000d5df0 T vtkConeSource::New(void)

It has been about a month since I compiled VTK, but I believe I
included MPI support.

Jeremy Stout

On Wed, 20 Oct 2004 15:29:27 -0400, Mathieu Malaterre
<mathieu.malaterre at kitware.com> wrote:
> Jeremy,
> 
>        What is the output of:
> 
> nm libvtkParallel.so| c++filt| grep vtkMPIController::New
> and
> nm libvtkGraphics.so| c++filt| grep vtkConeSource::New
> 
> I get:
> 
> 0016d0b6 T vtkMPIController::New()
> 0016ea3c W vtkMPIController::NewInstanceInternal() const
> 
> and
> 
> 000c821e T vtkConeSource::New()
> 000c9604 W vtkConeSource::NewInstanceInternal() const
> 
> If you don't get anything, that mean you didn't build VTK properly, turn
> MPI on for example
> 
> HTH
> Mathieu
> 
> 
> 
> 
> Jeremy Stout wrote:
> > Even when I use this command:
> >
> > g++ translator.cpp -otranslator -I/usr/local/include/vtk
> > -I/usr/local/packages/mpich/include -L/usr/local/lib/vtk/ -lvtkCommon
> > -lvtkDICOMParser -lvtkParallel -lvtkIO -lvtkGraphics -lvtkFiltering
> > -lvtkHybrid -lvtkImaging -lvtkRendering -lvtkexpat -lvtkfreetype
> > -lvtkftgl -lvtkjpeg -lvtkpng -lvt
> > ktiff -lvtkzlib -L/usr/local/packages/mpich/lib -lmpich -ldl
> >
> > I get:
> >
> > /tmp/ccPx6BGK.o(.text+0x11): In function `main':
> > : undefined reference to `vtkMPIController::New()'
> > /tmp/ccPx6BGK.o(.text+0x36): In function `main':
> > : undefined reference to `vtkConeSource::New()'
> > collect2: ld returned 1 exit status
> >
> > I have no idea what is causing the error and I can't continue work on
> > my program until I fix this. Thank you for your prompt response
> > though.
> >
> > Jeremy Stout
> >
> > On Wed, 20 Oct 2004 14:19:32 -0400, tom fogal <tfogal at apollo.sr.unh.edu> wrote:
> >
> >><a6bc6cc04102007277b92dab4 at mail.gmail.com>Jeremy Stout writes:
> >>
> >>>Hello, I am trying to compile a VTK program with the following line:
> >>>
> >>>g++ translator.cpp -otranslator -I/usr/local/include/vtk
> >>>-I/usr/local/packages/mpich/include -L /usr/local/
> >>>lib/vtk/ -lvtkParallel  -L /usr/local/packages/mpich/lib -lmpich -ldl
> >>
> >>This is valid? I guess you learn something new everyday. I had always
> >>though you could not have a space between -L and its argument, but you
> >>seem to be using it and not getting link errors due to mpich...
> >>
> >>
> >>>Unfortunately, this results in the following error messages:
> >>
> >><snip>
> >>
> >>>/tmp/ccZVONeC.o(.text+0x11): In function `main':
> >>>: undefined reference to `vtkMPIController::New()'
> >>>/tmp/ccZVONeC.o(.text+0x36): In function `main':
> >>>: undefined reference to `vtkConeSource::New()'
> >>
> >>You're forgetting to link in a library, my guess is vtkCommon. add in
> >>'-lvtkCommon' to your link line and see if that fixes it. I wouldve
> >>thought vtkMPIController would be in vtkParallel though...
> >>
> >>HTH,
> >>
> >>-tom
> >>
> > 
> > _______________________________________________
> > This is the private VTK discussion list.
> > Please keep messages on-topic. Check the FAQ at: <http://public.kitware.com/cgi-bin/vtkfaq>
> > Follow this link to subscribe/unsubscribe:
> > http://www.vtk.org/mailman/listinfo/vtkusers
> >
> 
>


From brad.king at kitware.com  Wed Oct 20 16:32:33 2004
From: brad.king at kitware.com (Brad King)
Date: Wed, 20 Oct 2004 16:32:33 -0400
Subject: [vtkusers] 'Undefined Reference' Error Message
In-Reply-To: <a6bc6cc04102013126d6d1a23@mail.gmail.com>
References: <a6bc6cc04102007277b92dab4@mail.gmail.com>	<200410201819.i9KIJWok000954@apollo.sr.unh.edu>	<a6bc6cc041020121717c388ee@mail.gmail.com>	<4176BC97.8010907@kitware.com>
	<a6bc6cc04102013126d6d1a23@mail.gmail.com>
Message-ID: <4176CB61.7090102@kitware.com>

Jeremy Stout wrote:

> If I use those commands, here is what I get:
> 
> [stout at energy stout]$ cd /usr/local/lib/vtk
> [stout at energy vtk]$ nm libvtkParallel.so| c++filt| grep vtkMPIController::New
> 0016db2c W vtkMPIController::NewInstanceInternal(void) const
> 0016db50 W vtkMPIController::NewInstance(void) const
> 00107000 T vtkMPIController::New(void)
> [stout at energy vtk]$ nm libvtkGraphics.so| c++filt| grep vtkConeSource::New
> 001dcb34 W vtkConeSource::NewInstanceInternal(void) const
> 001dcb58 W vtkConeSource::NewInstance(void) const
> 000d5df0 T vtkConeSource::New(void)
> 
> It has been about a month since I compiled VTK, but I believe I
> included MPI support.

Are you using the same version of GCC to build your program that you did 
to build VTK?  C++ is not link-compatible across compilers or even 
compiler versions (at least until the multi-vendor standard is widely 
accepted).

-Brad



From mathieu.malaterre at kitware.com  Wed Oct 20 16:37:50 2004
From: mathieu.malaterre at kitware.com (Mathieu Malaterre)
Date: Wed, 20 Oct 2004 16:37:50 -0400
Subject: [vtkusers] 'Undefined Reference' Error Message
In-Reply-To: <a6bc6cc04102013126d6d1a23@mail.gmail.com>
References: <a6bc6cc04102007277b92dab4@mail.gmail.com>	
	<200410201819.i9KIJWok000954@apollo.sr.unh.edu>	
	<a6bc6cc041020121717c388ee@mail.gmail.com>	
	<4176BC97.8010907@kitware.com>
	<a6bc6cc04102013126d6d1a23@mail.gmail.com>
Message-ID: <4176CC9E.7010008@kitware.com>

Jeremy,

	What cmakelists file do you use to compile this ?
	By any chance do you have static lib of VTK somewhere in a path that 
can be found by g++ ? Compiling an example with vtk static libs 
*require* the use of cmake otherwise it's too much a trouble.

HTH
Mathieu

This one works for me:

FIND_PACKAGE(VTK)
IF (VTK_FOUND)
   INCLUDE (${VTK_USE_FILE})
ENDIF (VTK_FOUND)

ADD_EXECUTABLE(translator translator.cpp )
TARGET_LINK_LIBRARIES (translator
   vtkParallel
)

$ cat translator.cpp 

#include "vtkMPIController.h"
#include "vtkConeSource.h"

int main()
{
   vtkMPIController::New()->Delete();
   vtkConeSource::New()->Delete();
   return 0;
}


Jeremy Stout wrote:
> If I use those commands, here is what I get:
> 
> [stout at energy stout]$ cd /usr/local/lib/vtk
> [stout at energy vtk]$ nm libvtkParallel.so| c++filt| grep vtkMPIController::New
> 0016db2c W vtkMPIController::NewInstanceInternal(void) const
> 0016db50 W vtkMPIController::NewInstance(void) const
> 00107000 T vtkMPIController::New(void)
> [stout at energy vtk]$ nm libvtkGraphics.so| c++filt| grep vtkConeSource::New
> 001dcb34 W vtkConeSource::NewInstanceInternal(void) const
> 001dcb58 W vtkConeSource::NewInstance(void) const
> 000d5df0 T vtkConeSource::New(void)
> 
> It has been about a month since I compiled VTK, but I believe I
> included MPI support.
> 
> Jeremy Stout
> 
> On Wed, 20 Oct 2004 15:29:27 -0400, Mathieu Malaterre
> <mathieu.malaterre at kitware.com> wrote:
> 
>>Jeremy,
>>
>>       What is the output of:
>>
>>nm libvtkParallel.so| c++filt| grep vtkMPIController::New
>>and
>>nm libvtkGraphics.so| c++filt| grep vtkConeSource::New
>>
>>I get:
>>
>>0016d0b6 T vtkMPIController::New()
>>0016ea3c W vtkMPIController::NewInstanceInternal() const
>>
>>and
>>
>>000c821e T vtkConeSource::New()
>>000c9604 W vtkConeSource::NewInstanceInternal() const
>>
>>If you don't get anything, that mean you didn't build VTK properly, turn
>>MPI on for example
>>
>>HTH
>>Mathieu
>>
>>
>>
>>
>>Jeremy Stout wrote:
>>
>>>Even when I use this command:
>>>
>>>g++ translator.cpp -otranslator -I/usr/local/include/vtk
>>>-I/usr/local/packages/mpich/include -L/usr/local/lib/vtk/ -lvtkCommon
>>>-lvtkDICOMParser -lvtkParallel -lvtkIO -lvtkGraphics -lvtkFiltering
>>>-lvtkHybrid -lvtkImaging -lvtkRendering -lvtkexpat -lvtkfreetype
>>>-lvtkftgl -lvtkjpeg -lvtkpng -lvt
>>>ktiff -lvtkzlib -L/usr/local/packages/mpich/lib -lmpich -ldl
>>>
>>>I get:
>>>
>>>/tmp/ccPx6BGK.o(.text+0x11): In function `main':
>>>: undefined reference to `vtkMPIController::New()'
>>>/tmp/ccPx6BGK.o(.text+0x36): In function `main':
>>>: undefined reference to `vtkConeSource::New()'
>>>collect2: ld returned 1 exit status
>>>
>>>I have no idea what is causing the error and I can't continue work on
>>>my program until I fix this. Thank you for your prompt response
>>>though.
>>>
>>>Jeremy Stout
>>>
>>>On Wed, 20 Oct 2004 14:19:32 -0400, tom fogal <tfogal at apollo.sr.unh.edu> wrote:
>>>
>>>
>>>><a6bc6cc04102007277b92dab4 at mail.gmail.com>Jeremy Stout writes:
>>>>
>>>>
>>>>>Hello, I am trying to compile a VTK program with the following line:
>>>>>
>>>>>g++ translator.cpp -otranslator -I/usr/local/include/vtk
>>>>>-I/usr/local/packages/mpich/include -L /usr/local/
>>>>>lib/vtk/ -lvtkParallel  -L /usr/local/packages/mpich/lib -lmpich -ldl
>>>>
>>>>This is valid? I guess you learn something new everyday. I had always
>>>>though you could not have a space between -L and its argument, but you
>>>>seem to be using it and not getting link errors due to mpich...
>>>>
>>>>
>>>>
>>>>>Unfortunately, this results in the following error messages:
>>>>
>>>><snip>
>>>>
>>>>>/tmp/ccZVONeC.o(.text+0x11): In function `main':
>>>>>: undefined reference to `vtkMPIController::New()'
>>>>>/tmp/ccZVONeC.o(.text+0x36): In function `main':
>>>>>: undefined reference to `vtkConeSource::New()'
>>>>
>>>>You're forgetting to link in a library, my guess is vtkCommon. add in
>>>>'-lvtkCommon' to your link line and see if that fixes it. I wouldve
>>>>thought vtkMPIController would be in vtkParallel though...
>>>>
>>>>HTH,
>>>>
>>>>-tom
>>>>
>>>
>>>_______________________________________________
>>>This is the private VTK discussion list.
>>>Please keep messages on-topic. Check the FAQ at: <http://public.kitware.com/cgi-bin/vtkfaq>
>>>Follow this link to subscribe/unsubscribe:
>>>http://www.vtk.org/mailman/listinfo/vtkusers
>>>
>>
>>
> 





From rharder at uiuc.edu  Wed Oct 20 23:26:40 2004
From: rharder at uiuc.edu (rharder at uiuc.edu)
Date: Wed, 20 Oct 2004 22:26:40 -0500
Subject: [vtkusers] image viewing slowdown?
Message-ID: <b07833ca.928d52f2.8210600@expms6.cites.uiuc.edu>

Hi,
I am wondering what the standard operating procedure is for
sending a new array down a pipeline.  I've found, using vtk4.2
python, and wxPython, that things run fine if a have a separate
pipeline, up to the renderwindow, for each array.  i just remove
one renderer and add another to see a different image.  If i have
just one pipeline, and send a new array through vtkImageImport, things
slow down (zoom, pan, rotate) after a few arrays have been cycled
through.  They still show up fine, but like a said, things slow
down.
Any thoughts?
Ross

Here is what I have.
pseudo code:
ii=vtkImageImport()
id=ii.GetOutput()

lut=vtkLookupTable()
lut.SetNumberOfTableValues(256)
lut.Build

in2c=vtkImageMapToColors()
im2c.SetLookupTable( lut )
im2c.SetInput( id )

ia=vtkImageActor()
ia.SetInput( in2c.GetOutput() )

ren=vtkRenderer()
ren.SetActor( ia )

to send data i do 
ii.CopyImportVoidPointer( pointer, size )

That's actually another point, ii.SetImportVoidPointer(pointer)
doesn't seem to work in python.   


From rharder at uiuc.edu  Thu Oct 21 02:02:59 2004
From: rharder at uiuc.edu (rharder at uiuc.edu)
Date: Thu, 21 Oct 2004 01:02:59 -0500
Subject: [vtkusers] image viewing slowdown?
Message-ID: <df7a6609.929ba277.81b8200@expms6.cites.uiuc.edu>

Ahhh... sorry, I am an idiot.... I was reconnecting the
renderer to the renderwindow everytime I set a new array.
This is bad i guess....

Ross
  

---- Original message ----
>Date: Wed, 20 Oct 2004 22:26:40 -0500
>From: <rharder at uiuc.edu>  
>Subject: [vtkusers] image viewing slowdown?  
>To: vtkusers at vtk.org
>
>Hi,
>I am wondering what the standard operating procedure is for
>sending a new array down a pipeline.  I've found, using vtk4.2
>python, and wxPython, that things run fine if a have a separate
>pipeline, up to the renderwindow, for each array.  i just remove
>one renderer and add another to see a different image.  If i have
>just one pipeline, and send a new array through vtkImageImport, things
>slow down (zoom, pan, rotate) after a few arrays have been cycled
>through.  They still show up fine, but like a said, things slow
>down.
>Any thoughts?
>Ross
>
>Here is what I have.
>pseudo code:
>ii=vtkImageImport()
>id=ii.GetOutput()
>
>lut=vtkLookupTable()
>lut.SetNumberOfTableValues(256)
>lut.Build
>
>in2c=vtkImageMapToColors()
>im2c.SetLookupTable( lut )
>im2c.SetInput( id )
>
>ia=vtkImageActor()
>ia.SetInput( in2c.GetOutput() )
>
>ren=vtkRenderer()
>ren.SetActor( ia )
>
>to send data i do 
>ii.CopyImportVoidPointer( pointer, size )
>
>That's actually another point, ii.SetImportVoidPointer(pointer)
>doesn't seem to work in python.   
>_______________________________________________
>This is the private VTK discussion list. 
>Please keep messages on-topic. Check the FAQ at: <http://public.kitware.
com/cgi-bin/vtkfaq>
>Follow this link to subscribe/unsubscribe:
>http://www.vtk.org/mailman/listinfo/vtkusers


From aussieind at rediffmail.com  Thu Oct 21 04:24:04 2004
From: aussieind at rediffmail.com (Michael  Thomas)
Date: 21 Oct 2004 08:24:04 -0000
Subject: [vtkusers] vtkTypeRevisionMacro & New( )
Message-ID: <20041021082404.24691.qmail@webmail35.rediffmail.com>

An HTML attachment was scrubbed...
URL: <http://www.vtk.org/pipermail/vtkusers/attachments/20041021/512707a7/attachment.htm>
-------------- next part --------------
Hi Guys,   

    I am trying to use the latest vtkDICOMImageReader class but when I compile the app, I get linker errors related to vtkTypeRevisionMacro & New( )functions in the vtkDICOMImageReader.h file.

== CUT ==

class CTestDicomImage : public vtkImageReader2
{
 public:
  static CTLADicomImage *New();
  vtkTypeRevisionMacro( CTLADicomImage, vtkImageReader2);
  .....
  .....
  .....
}

== CUT ==

The linker errors I get are these...
 
TLADicomImage.obj : error LNK2001: unresolved external symbol "protected: virtual void __thiscall CTestDicomImage::CollectRevisions(class ostream &)" (?CollectRevisions at CTestDicomImage@@MAEXAAVostream@@@Z)
TLADicomImage.obj : error LNK2001: unresolved external symbol "public: static class CTestDicomImage * __cdecl CTestDicomImage::New(void)" (?New at CTestDicomImage@@SAPAV1 at XZ)

As you guys would have noticed, I am not using the vtkDICOMImageReader class as is... Using them as is gives me several linker errors. So I created a dummy C++ class on VC++ 6.0 & used the content of vtkDICOMImageReader & replaced all vtkDICOMImageReader occurances with my Test class name i.e. CTestDicomImage. I had to remove the references to the vtkstd in the vtkDICOMImageReaderVector class as its a recent implementation while I am still using VTK 4.0( I suppose I will replace them with some other MFC list or collections). Everything seems fine except for these 2 linker errors. Whats going wrong here???

Could someone give some helpful pointers. What is the revision macro used for??? Why is there no implementation of *New() in most .cxx files. Am I missing something???

Cheers,
Michael  

From zfjgo at 126.com  Thu Oct 21 04:36:36 2004
From: zfjgo at 126.com (=?gb2312?B?emZqZ28=?=)
Date: Thu, 21 Oct 2004 16:36:36 +0800 (CST)
Subject: [vtkusers] How to interact?
Message-ID: <41777514.0000B9.31511@m61.126.com>

Hello
    
I am attempting to interact with vtkRenderWindow,so I add the following VC++ code into my Project.But all the message have no response except WM_CHAR.
Why?
Do I need to overwrite them?How to do it ?

Thanks for your reply.



LRESULT CVtkSDIView::WindowProc(UINT message, WPARAM wParam, LPARAM lParam) 
{
  switch (message)
  {
    //case WM_PAINT: 
    case WM_LBUTTONDOWN: 
    case WM_LBUTTONUP: 
    case WM_MBUTTONDOWN: 
    case WM_MBUTTONUP: 
    case WM_RBUTTONDOWN: 
    case WM_RBUTTONUP: 
    case WM_MOUSEMOVE:
    case WM_CHAR:
    case WM_TIMER:
      if (this->iren->GetInitialized())
      {
        return vtkHandleMessage2(this->m_hWnd, message, wParam, lParam, this->iren);
      }
      break;
  }
   
  return CView::WindowProc(message, wParam, lParam);
 
}


-----------------------------------------------------------
??126????????????????????http://www.126.com/
??????????260???12?????????????????

From I.deBoer at polytec.de  Thu Oct 21 04:42:39 2004
From: I.deBoer at polytec.de (de Boer Ingo)
Date: Thu, 21 Oct 2004 10:42:39 +0200
Subject: [vtkusers] How to interact?
Message-ID: <1484AEC8AB498A4EB64D4A8137D23FD901450064@02polywbr.waldbronn.polytec.de>

Hi,

did you try the vtkMFC samples shipped with VTK ?
They work on my system...

greets
  Ingo

---
Dr.-Ing. Ingo H. de Boer

Polytec GmbH
Polytec-Platz 1-7, 76337 Waldbronn, Germany
phone: ++49 7243 604 106
fax  : ++49 7243 604 255
 
> Hello
>     
> I am attempting to interact with vtkRenderWindow,so I add the 
> following VC++ code into my Project.But all the message have 
> no response except WM_CHAR.
> Why?
> Do I need to overwrite them?How to do it ?
> 
> Thanks for your reply.


From Karl.Fritscher at umit.at  Thu Oct 21 05:04:00 2004
From: Karl.Fritscher at umit.at (Karl Fritscher)
Date: Thu, 21 Oct 2004 11:04:00 +0200
Subject: [vtkusers] vtkImagePlaneWidget-TexturePlaneActor
Message-ID: <s17797af.050@ZNMAIL01.TCC>

Hi to all,

I would like to save the (output of the) vtkTexturePlaneActor (not the
output of GetResliceOutput()) of the vtkImagePlaneWidget class as an
image. Can somebody tell me, what would be the easiest way to do this?

Thanks,

Karl


From venu.thomas at nestinfotech.com  Thu Oct 21 06:13:51 2004
From: venu.thomas at nestinfotech.com (=?iso-8859-1?Q?=BF_Venu_Thomas_=BF?=)
Date: Thu, 21 Oct 2004 15:43:51 +0530
Subject: [vtkusers] Error: abnormal program termination
Message-ID: <00d001c4b756$aa4f2300$a900080a@nestinfotech.com>

Dear,
       all...

        iam making a new sample pgm.. if i want to build this sample program in VS C++ .. then i got a error(as bellow).. how is avoid it? pls send to me..

Error:
  Debug error !
        
        program :..../sample/myproject.cxx

    abnormal program termination

    (Press Retry to debug the application)


My program is ..

myprogram.cxx:

#include "itkImage.h"
#include "itkImageFileReader.h"
#include "itkImageToVTKImageFilter.h"
#include "vtkImageViewer.h"
#include "vtkRenderWindowInteractor.h"
int main( int argc, char **argv ) {
typedef itk::Image<unsigned short,2> ImageType;
typedef itk::ImageFileReader<ImageType> ReaderType;
typedef itk::ImageToVTKImageFilter< ImageType> ConnectorType;
ReaderType::Pointer reader = ReaderType::New();
ConnectorType::Pointer connector = ConnectorType::New();
reader->SetFileName( argv[1] );
connector->SetInput( reader->GetOutput() );
vtkImageViewer * viewer = vtkImageViewer::New();
vtkRenderWindowInteractor * renderWindowInteractor =
vtkRenderWindowInteractor::New();
viewer->SetupInteractor( renderWindowInteractor );
viewer->SetInput( connector->GetOutput() );
viewer->Render();
viewer->SetColorWindow( 255 );
viewer->SetColorLevel( 128 );
renderWindowInteractor->Start();
return 0;
}

I wait for ur reply....


Regards,
          Venu Thomas
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From shijith at ddd.co.jp  Thu Oct 21 06:49:59 2004
From: shijith at ddd.co.jp (shijith)
Date: Thu, 21 Oct 2004 19:49:59 +0900
Subject: [vtkusers] How to interact?
In-Reply-To: <20041021102100.B4C1A2E86C@public.kitware.com>
Message-ID: <LGEEICMBGMOGCJKAGDHLGECHCAAA.shijith@ddd.co.jp>

Hi,
I think you need to override preTranslateMessage() of the view class
and redirect the message to the current window.
for example, if you want to capture LBUTTONDOWN event, do something like
this,

BOOL CVTKDeomoView::PreTranslateMessage(MSG* pMsg)
{
	// TODO: Add your specialized code here and/or call the base class


			if(pMsg->message ==WM_LBUTTONDOWN)
			{
				SendMessage(WM_LBUTTONDOWN,pMsg->lParam,pMsg->wParam);
			}

	return CView::PreTranslateMessage(pMsg);
}
I hope this will do.
shijith.

Message: 6
Date: Thu, 21 Oct 2004 16:36:36 +0800 (CST)
From: " zfjgo " <zfjgo at 126.com>
Subject: [vtkusers] How to interact?
To: vtkusers at vtk.org
Message-ID: <41777514.0000B9.31511 at m61.126.com>
Content-Type: text/plain; charset="gb2312"

Hello

I am attempting to interact with vtkRenderWindow,so I add the following VC++
code into my Project.But all the message have no response except WM_CHAR.
Why?
Do I need to overwrite them?How to do it ?

Thanks for your reply.



LRESULT CVtkSDIView::WindowProc(UINT message, WPARAM wParam, LPARAM lParam)
{
  switch (message)
  {
    //case WM_PAINT:
    case WM_LBUTTONDOWN:
    case WM_LBUTTONUP:
    case WM_MBUTTONDOWN:
    case WM_MBUTTONUP:
    case WM_RBUTTONDOWN:
    case WM_RBUTTONUP:
    case WM_MOUSEMOVE:
    case WM_CHAR:
    case WM_TIMER:
      if (this->iren->GetInitialized())
      {
        return vtkHandleMessage2(this->m_hWnd, message, wParam, lParam,
this->iren);
      }
      break;
  }

  return CView::WindowProc(message, wParam, lParam);

}





From pingkun at ieee.org  Thu Oct 21 08:58:16 2004
From: pingkun at ieee.org (Pingkun Yan)
Date: Thu, 21 Oct 2004 20:58:16 +0800
Subject: [vtkusers] Error: abnormal program termination
References: <00d001c4b756$aa4f2300$a900080a@nestinfotech.com>
Message-ID: <001a01c4b76d$a8a1c9b0$525f13ac@stf.nus.edu.sg>

Hi Thomas,

You may try to add

connector->Update();

into your program, because connector can not be triggered in the pipeline.

Pingkun
  ----- Original Message ----- 
  From: ? Venu Thomas ? 
  To: vtkusers at vtk.org 
  Cc: insight-users at itk.org 
  Sent: Thursday, October 21, 2004 6:13 PM
  Subject: [vtkusers] Error: abnormal program termination


  Dear,
         all...

          iam making a new sample pgm.. if i want to build this sample program in VS C++ .. then i got a error(as bellow).. how is avoid it? pls send to me..

  Error:
    Debug error !
          
          program :..../sample/myproject.cxx

      abnormal program termination

      (Press Retry to debug the application)


  My program is ..

  myprogram.cxx:

  #include "itkImage.h"
  #include "itkImageFileReader.h"
  #include "itkImageToVTKImageFilter.h"
  #include "vtkImageViewer.h"
  #include "vtkRenderWindowInteractor.h"
  int main( int argc, char **argv ) {
  typedef itk::Image<unsigned short,2> ImageType;
  typedef itk::ImageFileReader<ImageType> ReaderType;
  typedef itk::ImageToVTKImageFilter< ImageType> ConnectorType;
  ReaderType::Pointer reader = ReaderType::New();
  ConnectorType::Pointer connector = ConnectorType::New();
  reader->SetFileName( argv[1] );
  connector->SetInput( reader->GetOutput() );
  vtkImageViewer * viewer = vtkImageViewer::New();
  vtkRenderWindowInteractor * renderWindowInteractor =
  vtkRenderWindowInteractor::New();
  viewer->SetupInteractor( renderWindowInteractor );
  viewer->SetInput( connector->GetOutput() );
  viewer->Render();
  viewer->SetColorWindow( 255 );
  viewer->SetColorLevel( 128 );
  renderWindowInteractor->Start();
  return 0;
  }

  I wait for ur reply....


  Regards,
            Venu Thomas
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From brad.king at kitware.com  Thu Oct 21 09:27:02 2004
From: brad.king at kitware.com (Brad King)
Date: Thu, 21 Oct 2004 09:27:02 -0400
Subject: [vtkusers] vtkTypeRevisionMacro & New( )
In-Reply-To: <20041021082404.24691.qmail@webmail35.rediffmail.com>
References: <20041021082404.24691.qmail@webmail35.rediffmail.com>
Message-ID: <4177B926.7060007@kitware.com>

Michael Thomas wrote:
> Hi Guys,   
> 
>     I am trying to use the latest vtkDICOMImageReader class but when I compile the app, I get linker errors related to vtkTypeRevisionMacro & New( )functions in the vtkDICOMImageReader.h file.
> 
> == CUT ==
> 
> class CTestDicomImage : public vtkImageReader2
> {
>  public:
>   static CTLADicomImage *New();
>   vtkTypeRevisionMacro( CTLADicomImage, vtkImageReader2);
>   .....
>   .....
>   .....
> }
> 
> == CUT ==
> 
> The linker errors I get are these...
>  
> TLADicomImage.obj : error LNK2001: unresolved external symbol "protected: virtual void __thiscall CTestDicomImage::CollectRevisions(class ostream &)" (?CollectRevisions at CTestDicomImage@@MAEXAAVostream@@@Z)
> TLADicomImage.obj : error LNK2001: unresolved external symbol "public: static class CTestDicomImage * __cdecl CTestDicomImage::New(void)" (?New at CTestDicomImage@@SAPAV1 at XZ)
> 
> As you guys would have noticed, I am not using the vtkDICOMImageReader class as is... Using them as is gives me several linker errors. So I created a dummy C++ class on VC++ 6.0 & used the content of vtkDICOMImageReader & replaced all vtkDICOMImageReader occurances with my Test class name i.e. CTestDicomImage. I had to remove the references to the vtkstd in the vtkDICOMImageReaderVector class as its a recent implementation while I am still using VTK 4.0( I suppose I will replace them with some other MFC list or collections). Everything seems fine except for these 2 linker errors. Whats going wrong here???
> 
> Could someone give some helpful pointers. What is the revision macro used for??? Why is there no implementation of *New() in most .cxx files. Am I missing something???

You left these two lines out of the .cxx file in your modified version:

vtkCxxRevisionMacro(vtkDICOMImageReader, "$Revision: 1.1 $");
vtkStandardNewMacro(vtkDICOMImageReader);

These macros expand into definitions of the symbols you are missing.

-Brad


From stout.jeremy at gmail.com  Thu Oct 21 09:50:17 2004
From: stout.jeremy at gmail.com (Jeremy Stout)
Date: Thu, 21 Oct 2004 09:50:17 -0400
Subject: [vtkusers] 'Undefined Reference' Error Message
In-Reply-To: <4176CB61.7090102@kitware.com>
References: <a6bc6cc04102007277b92dab4@mail.gmail.com>
	<200410201819.i9KIJWok000954@apollo.sr.unh.edu>
	<a6bc6cc041020121717c388ee@mail.gmail.com>
	<4176BC97.8010907@kitware.com>
	<a6bc6cc04102013126d6d1a23@mail.gmail.com>
	<4176CB61.7090102@kitware.com>
Message-ID: <a6bc6cc0410210650657118d9@mail.gmail.com>

It seems that the system administrator upgraded gcc between when I
compiled vtk and now. I'll recompile vtk and see if that works. Thank
you for the suggestion.

Jeremy Stout


On Wed, 20 Oct 2004 16:32:33 -0400, Brad King <brad.king at kitware.com> wrote:
> Jeremy Stout wrote:
> 
> > If I use those commands, here is what I get:
> >
> > [stout at energy stout]$ cd /usr/local/lib/vtk
> > [stout at energy vtk]$ nm libvtkParallel.so| c++filt| grep vtkMPIController::New
> > 0016db2c W vtkMPIController::NewInstanceInternal(void) const
> > 0016db50 W vtkMPIController::NewInstance(void) const
> > 00107000 T vtkMPIController::New(void)
> > [stout at energy vtk]$ nm libvtkGraphics.so| c++filt| grep vtkConeSource::New
> > 001dcb34 W vtkConeSource::NewInstanceInternal(void) const
> > 001dcb58 W vtkConeSource::NewInstance(void) const
> > 000d5df0 T vtkConeSource::New(void)
> >
> > It has been about a month since I compiled VTK, but I believe I
> > included MPI support.
> 
> Are you using the same version of GCC to build your program that you did
> to build VTK?  C++ is not link-compatible across compilers or even
> compiler versions (at least until the multi-vendor standard is widely
> accepted).
> 
> -Brad
> 
>


From normand at lina.univ-nantes.fr  Thu Oct 21 12:06:42 2004
From: normand at lina.univ-nantes.fr (Jean-Marie Normand)
Date: Thu, 21 Oct 2004 16:06:42 +0000
Subject: [vtkusers] Segmentation Fault in vtkPointLocator::BuildLocator
Message-ID: <1098374802.3799.79.camel@pago.irin.sciences.univ-nantes.prive>

Hi,
I've just added in my code a new class that uses vtkPointLocator, the
compilation step is ok, but at runtime I get a segmentation fault:

#0  0x008ef798 in vtkPointLocator::BuildLocator () from
/usr/local/lib/vtk/libvtkCommon.so

This is the part of code where it crashes:
locator = vtkPointLocator::New();
this->locator->SetDataSet( this->input );
this->locator->AutomaticOff();
this->locator->SetMaxLevel( 5 );
this->locator->BuildLocator(); //! Here is the seg fault

where this->input is a vtkPolyData* obtained via a vtkAppendPolyData. It
seems that the crash may be linked with the input.

But one thing is when I try to check the number of vertices of my
vtkPolyData  (by calling appUnClipped->GetOutput()->GetNumberOfPoints() 
appUnClipped being a vtkAppendPolyData) I get 0 as an answer, whereas
when I declare a mapper, an actor and that I render the actor, I see the
right surface. Is this normal ?

Has anyone got a clue ?
 
Thanks in advance.


Jim



From christine.schaller at arcor.de  Thu Oct 21 10:09:44 2004
From: christine.schaller at arcor.de (christine.schaller at arcor.de)
Date: Thu, 21 Oct 2004 16:09:44 +0200 (CEST)
Subject: [vtkusers] SLCReader and MarchingCubes
Message-ID: <29416819.1098367784239.JavaMail.ngmail@webmail03.arcor-online.net>

Hello.
I'm rather new to VTK and therefore I meet a problem, that may be quite trivial to you. Nevertheless I'd very much appreciate an tip.
I need to extreact isosurfaces from an .slc-file. So the vital parts of the programm are the following:

vtkSLCReader *reader = vtkSLCReader::New();
reader->SetFileName(fn);

vtkMarchingCubes *skinExtractor = vtkMarchingCubes::New();
skinExtractor->SetInput(reader->GetOutput());
 
vtkPolyDataMapper *skinMapper = vtkPolyDataMapper::New();
skinMapper->SetInput(skinExtractor->GetOutput());

vtkActor *skinActor = vtkActor::New();
skinActor->SetMapper(skinMapper);
	 
vtkRenderer *ren1 = vtkRenderer::New();

renWin->AddRenderer(ren1);
ren1->AddActor(skinActor);
renWin->Render();
iren->Start();

The problem is, all I can see is a black RenderWindow. Nothing else.
Could anyone please give me a tip where the problem with this code lies?
Greetings
Chrsitine Schaller 


From luis.ibanez at kitware.com  Thu Oct 21 10:41:51 2004
From: luis.ibanez at kitware.com (Luis Ibanez)
Date: Thu, 21 Oct 2004 10:41:51 -0400
Subject: [vtkusers] Error: abnormal program termination
In-Reply-To: <00d001c4b756$aa4f2300$a900080a@nestinfotech.com>
References: <00d001c4b756$aa4f2300$a900080a@nestinfotech.com>
Message-ID: <4177CAAF.4050203@kitware.com>


Hi Venu,

Please look at the example:


   InsightApplications/Auxiliary/vtk/
              itkReadITKImageShowVTK.cxx


it loads an image using ITK readers,
converts it to a vtkImageData and then
displays the image using a minimal VTK
visualization pipeline.

In the future, please put try/catch blocks
around code that may trigger exceptions.

You will find numerous examples on how to
catch exception in the ITK Software Guide


http://www.itk.org/ItkSoftwareGuide.pdf




    Regards,


       Luis


------------------------
? Venu Thomas ? wrote:

> Dear,
>        all...
>  
>         iam making a new sample pgm.. if i want to build this sample 
> program in VS C++ .. then i got a error(as bellow).. how is avoid it? 
> pls send to me..
>  
> Error:
>   *Debug error !*
> *        *
> *        program :..../sample/myproject.cxx*
> ** 
> *    abnormal program termination*
> ** 
> *    (Press Retry to debug the application)*
>  
>  
> My program is ..
>  
> *myprogram.cxx:*
>  
> #include "itkImage.h"
> #include "itkImageFileReader.h"
> #include "itkImageToVTKImageFilter.h"
> #include "vtkImageViewer.h"
> #include "vtkRenderWindowInteractor.h"
> int main( int argc, char **argv ) {
> typedef itk::Image<unsigned short,2> ImageType;
> typedef itk::ImageFileReader<ImageType> ReaderType;
> typedef itk::ImageToVTKImageFilter< ImageType> ConnectorType;
> ReaderType::Pointer reader = ReaderType::New();
> ConnectorType::Pointer connector = ConnectorType::New();
> reader->SetFileName( argv[1] );
> connector->SetInput( reader->GetOutput() );
> vtkImageViewer * viewer = vtkImageViewer::New();
> vtkRenderWindowInteractor * renderWindowInteractor =
> vtkRenderWindowInteractor::New();
> viewer->SetupInteractor( renderWindowInteractor );
> viewer->SetInput( connector->GetOutput() );
> viewer->Render();
> viewer->SetColorWindow( 255 );
> viewer->SetColorLevel( 128 );
> renderWindowInteractor->Start();
> return 0;
> }
>  
> I wait for ur reply....
>  
>  
> Regards,
>           Venu Thomas
> 
> 
> ------------------------------------------------------------------------
> 
> _______________________________________________
> This is the private VTK discussion list. 
> Please keep messages on-topic. Check the FAQ at: <http://public.kitware.com/cgi-bin/vtkfaq>
> Follow this link to subscribe/unsubscribe:
> http://www.vtk.org/mailman/listinfo/vtkusers






From michnay at freemail.hu  Thu Oct 21 11:32:05 2004
From: michnay at freemail.hu (=?ISO-8859-2?Q?Michnay_Bal=E1zs?=)
Date: Thu, 21 Oct 2004 17:32:05 +0200 (CEST)
Subject: [vtkusers] VTK VC++ question
Message-ID: <freemail.20040921173205.72181@fm8.freemail.hu>

Dear VTKUsers,
I'm using Visual C++ 6 to develop VTK applications and it works just 
fine. But there's one thing I couldn't figure out...
My application uses MFC, so I have a menu in the main window.
In one of the menu options I have two other options to select.
Let's suppose that clicking on one of them reads a BMP file using 
vtkBMPReader and another one displays it using vtkImageViewer.
Since I couldn't find a way to store the image data globally I had to 
read the whole BMP file again each time I'd like to display it.
As far as I think "static vtkBMPReader *BMPReader;" doesn't make 
sense, because BMPReader is an object so it cannot be made static (as 
methods and data members can be).
Is there a way to store vtk-related data globally?
So once I read a BMP file by clicking on "Read BMP" in the menu for 
instance I don't want to read it again when clicking on "Display BMP".
On this exaple can someone please explain how these data can be 
stored globally?
Thank you very much, I'm looking forward to your reply,
Regards,
  Michnay


From steven.robbins at videotron.ca  Thu Oct 21 12:09:14 2004
From: steven.robbins at videotron.ca (Steve M. Robbins)
Date: Thu, 21 Oct 2004 12:09:14 -0400
Subject: [vtkusers] java pipeline browser
Message-ID: <20041021160914.GE22095@nyongwa.montreal.qc.ca>

Howdy,

I've used and really liked the VTK pipeline browser that comes with
MayaVi, which is written in Python.  I know that a similar browser
exists in Tcl.

I imagine that a similar beast could be done in Java, with its
reflection capability.  Does such a beast exist?

Thanks,
-Steve



From jshalf at lbl.gov  Thu Oct 21 12:43:45 2004
From: jshalf at lbl.gov (John Shalf)
Date: Thu, 21 Oct 2004 09:43:45 -0700
Subject: [vtkusers] java pipeline browser
In-Reply-To: <20041021160914.GE22095@nyongwa.montreal.qc.ca>
References: <20041021160914.GE22095@nyongwa.montreal.qc.ca>
Message-ID: <5FCB0E18-2380-11D9-9323-000A959D1FA8@lbl.gov>


Please take a look at Triana

To see an image of it, check out the "Triana How To Guide"
	http://www.triana.co.uk/docs/index.html#

It is very flexible for supporting a number of workflows.  I think
several of these incorporate VTK, but mix it with other Grid
services for distributed workflows.
	http://www.triana.co.uk/links/

-john

On Oct 21, 2004, at 9:09 AM, Steve M. Robbins wrote:
> Howdy,
>
> I've used and really liked the VTK pipeline browser that comes with
> MayaVi, which is written in Python.  I know that a similar browser
> exists in Tcl.
>
> I imagine that a similar beast could be done in Java, with its
> reflection capability.  Does such a beast exist?
>
> Thanks,
> -Steve
>
> _______________________________________________
> This is the private VTK discussion list.
> Please keep messages on-topic. Check the FAQ at: 
> <http://public.kitware.com/cgi-bin/vtkfaq>
> Follow this link to subscribe/unsubscribe:
> http://www.vtk.org/mailman/listinfo/vtkusers



From wbuckley at sigmainc.com  Thu Oct 21 15:51:35 2004
From: wbuckley at sigmainc.com (William Buckley)
Date: Thu, 21 Oct 2004 15:51:35 -0400
Subject: [vtkusers] NEED GIFTED GUI DEVELOPERS [Boston Scientific
	Endovations division - Watertown, Mass.]
Message-ID: <1D11636D65C359488722858249D6B58FB826F8@sigmail>

 

William J. Buckley

Manager, IT Life Sciences

Sigma Systems, Inc.

Phone:  (508) 925-3233 or (800) 462-3976

Fax:  (508) 357-6301

URL:   <http://www.sigmainc.com> www.sigmainc.com

Email:   <mailto:wbuckley at sigmainc.com> wbuckley at sigmainc.com

 

Note:  this message (including attachments, files, replies and forwarded
copies) contains confidential information for use by the intended
recipients(s) only, for purposes authorized by Sigma Systems, Inc.
(Sigma).

 

Sigma Systems, Inc. is a provider of contract software and hardware
engineering, IT staff augmentation and project solutions doing business
nationwide and serving the mission-critical users of experienced
software technologists.  Sigma, from its corporate location outside of
Boston provides companies in any area of the US with a single contractor
up to staffing an entire project team. Established in 1994, Sigma has
succeeded in being recognized in the IT consulting industry as a go-to
service provider; viewed as experts by the software professionals we
hire, and the companies that hire them who benefit from their expertise.


 

Sigma is an award winning consulting firm, recognized nationally by many
large business associations, to include achieving an Inc 500
fastest-growing privately held company award. Today, we continue to
evolve to meet new and innovative technology needs, to support both
mature & emerging industries and to act as HR and IT industry advisors
to current and prospective clients in the ever changing use of contract
resources, staff augmentation and project resource support.  

 

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From raghu.venkatram at gmail.com  Thu Oct 21 16:50:42 2004
From: raghu.venkatram at gmail.com (Raghu Venkatram)
Date: Thu, 21 Oct 2004 16:50:42 -0400
Subject: [vtkusers] entry point not found in vtkrendering.dll
Message-ID: <2a4cfcc7041021135013c5fad8@mail.gmail.com>

Hi,

I compiled the latest cvs version of vtk,  and i get this error
"The procedure entry point could not be flocated in vtkrendering.dll"
when i run my program.

I have inclued the debug folder path in the PATH variable, this is
where I have my vtkrendering.dll.

My program ran fine using an earlier version of VTK, installed using
the self extracting .exe file.

Thanks in advane,
Raghu


From arbvtk at yahoo.fr  Thu Oct 21 17:07:54 2004
From: arbvtk at yahoo.fr (=?iso-8859-1?q?REGAT-BARREL=20Aur=E9lien?=)
Date: Thu, 21 Oct 2004 23:07:54 +0200 (CEST)
Subject: [vtkusers] entry point not found in vtkrendering.dll
In-Reply-To: <2a4cfcc7041021135013c5fad8@mail.gmail.com>
Message-ID: <20041021210755.23818.qmail@web25210.mail.ukl.yahoo.com>

Hi,
Test your program with dependecy walker, and check which dlls are used ("View Full Paths" option).
http://www.dependencywalker.com/

Raghu Venkatram <raghu.venkatram at gmail.com> wrote:
Hi,

I compiled the latest cvs version of vtk, and i get this error
"The procedure entry point could not be flocated in vtkrendering.dll"
when i run my program.

I have inclued the debug folder path in the PATH variable, this is
where I have my vtkrendering.dll.

My program ran fine using an earlier version of VTK, installed using
the self extracting .exe file.

Thanks in advane,
Raghu
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From darshanpai at gmail.com  Thu Oct 21 17:12:57 2004
From: darshanpai at gmail.com (Darshan Pai)
Date: Thu, 21 Oct 2004 17:12:57 -0400
Subject: [vtkusers] Error while compiling a vtk program
Message-ID: <f964bb9204102114124568b394@mail.gmail.com>

I have installed vtk3.42 in Solaris.

I am trying to run an sample example from the kitware site. Let name
it sample.cpp

I make an object file .. sample1.o

But i cant make an executable 

I set the library paths and all . But it just doesnt work . 

i use
g++ -o sample -lvtkRendering sample.o

the error is as follows

Undefined                       first referenced
 symbol                             in file
vtkPolyDataSource::GetOutput()      sample.o
vtkActor::GetProperty()             sample.o
vtkProperty::SetColor(float, float, float)sample.o
vtkRenderWindow::New()              sample.o
vtkRenderWindowInteractor::New()     sample.o
vtkRenderer::New()                  sample.o
vtkViewport::AddProp(vtkProp*)      sample.o
vtkActor::New()                     sample.o
vtkPolyDataMapper::SetInput(vtkPolyData*)      sample.o
vtkSphereSource::New()              sample.o
vtkPolyDataMapper::New()            sample.o
vtkRenderWindowInteractor::SetRenderWindow(vtkRenderWindow*)       sample.o
ld: fatal: Symbol referencing errors. No output written to sample
collect2: ld returned 1 exit status

What am i missing here 

The code is the first on in Example code of kitware site ..

Thanx

Darshan


From lost_bits1110 at hotmail.com  Thu Oct 21 17:45:41 2004
From: lost_bits1110 at hotmail.com (Louis Desjardins)
Date: Thu, 21 Oct 2004 21:45:41 +0000
Subject: [vtkusers] trackball interface
Message-ID: <BAY16-F35s4ddqN19bB00011324@hotmail.com>

Hi vtkusers,

I wanted to know if there are any classes that I can use to interface to 
trackball motion ?

I looked at vtkInteractorStyleTrackball but it doesnt seem to be fully 
implemented

Thanks

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From rohlof at gmx.de  Thu Oct 21 18:12:32 2004
From: rohlof at gmx.de (Timo Frenzel)
Date: Fri, 22 Oct 2004 00:12:32 +0200
Subject: [vtkusers] Exact order of rotations in transformation matrix?
Message-ID: <E1CKlAs-000654-00@smtp07.web.de>

Hi,

I've build a 3D modell. In this modell I got another coordinate system with
coordinates which are exact projected in the initial coordination system
(x-,y- and z-axis are vectors in the initial system).
Now i wanna get the rotation angles of my transformation matrix, therefore i
have to know the order of rotations in the usertransform by a 4x4 matrix.
Then i am able to reconstruct the angles with trigonometrical connections of
the matrix elements. Because any order of rotation causes another rotation
matrix.
The vtkProp3D says that the order of rotation in use with
vtkProp3D::SetOrientation(float[3]) is Z,X,Y. But if i try this to get a
rotation matrix it does not seem correct. Just a minimal or non-existing
rotation about the x-axis gets a exact orientation of an actor.

The transformation matrix for Z,X,Y order:
x=angle about X-axis, y=angle about Y-axis and z=angle about Z-axis.
s=sin, c=cos
  |-------------------------|-----------|-------------------------|--|
  |c(y)*c(z)-s(x)*s(y)*s(z) |-c(x)*s(z) |s(y)*c(z)+s(x)*s(y)*s(z) |0 |
  |                         |           |                         |  |
  |c(y)*s(z)+s(x)*s(y)*c(z) |-c(x)*c(z) |s(y)*s(z)-s(x)*c(y)*c(z) |0 |
T=|                         |           |                         |  |
  |-c(x)*s(y)               |s(x)       |c(x)*c(y)                |0 |
  |-------------------------|-----------|-------------------------|--|
  |           0             |     0     |             0           |1 |
  |-------------------------|-----------|-------------------------|--|



May anybody help me? Thx in advance, Timo Frenzel.



From flypureau at hotmail.com  Thu Oct 21 20:50:37 2004
From: flypureau at hotmail.com (Tracy)
Date: Fri, 22 Oct 2004 10:50:37 +1000
Subject: [vtkusers] No data to generate normals for!?
Message-ID: <BAY24-DAV1O8FNpyLAP00000372@hotmail.com>

Dear All, 

Does anybody know the reason to cause error message like 
"ERROR: In \Program Files\vtk42\VTK-4.2-LatestRelease\Vtk\Graphics\vtkPolyDataNormals.cxx, line 88
vtkPolyDataNormals (09C53780): No data to generate normals for!"? 

Acturally what I do is following the example from "VTK\Example\Visual...\TCL\ExtractUgGrid.tcl with my own source file.
The format of my source file is exactly same as the original file "..\data\blow.vtk" except the specific data.
I do change the related parameters from the code file like SetScalarsName(), setVectorsName(), setCellMinimum() and SetCellMaximum().
But it doesn't  work well (I work it with C++.net).

Anybody can help me?

Thanks In advance.

Tracy

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From I.deBoer at polytec.de  Fri Oct 22 02:34:17 2004
From: I.deBoer at polytec.de (de Boer Ingo)
Date: Fri, 22 Oct 2004 08:34:17 +0200
Subject: [vtkusers] VTK VC++ question
Message-ID: <1484AEC8AB498A4EB64D4A8137D23FD90145006E@02polywbr.waldbronn.polytec.de>

Hi,

well.. I don't exactly know where the problem is, but
why don't you store a pointer to the bmp as a member
in your CView or CDocument class?
There is no need for global storage...

greets
  Ingo

---
Dr.-Ing. Ingo H. de Boer

Polytec GmbH
Polytec-Platz 1-7, 76337 Waldbronn, Germany
phone: ++49 7243 604 106
fax  : ++49 7243 604 255
 
> Dear VTKUsers,
> I'm using Visual C++ 6 to develop VTK applications and it works just 
> fine. But there's one thing I couldn't figure out...
> My application uses MFC, so I have a menu in the main window.
> In one of the menu options I have two other options to select.
> Let's suppose that clicking on one of them reads a BMP file using 
> vtkBMPReader and another one displays it using vtkImageViewer.
> Since I couldn't find a way to store the image data globally I had to 
> read the whole BMP file again each time I'd like to display it.
> As far as I think "static vtkBMPReader *BMPReader;" doesn't make 
> sense, because BMPReader is an object so it cannot be made static (as 
> methods and data members can be).
> Is there a way to store vtk-related data globally?
> So once I read a BMP file by clicking on "Read BMP" in the menu for 
> instance I don't want to read it again when clicking on "Display BMP".
> On this exaple can someone please explain how these data can be 
> stored globally?
> Thank you very much, I'm looking forward to your reply,
> Regards,
>   Michnay


From lconcha at gmail.com  Fri Oct 22 02:40:04 2004
From: lconcha at gmail.com (Luis Concha)
Date: Fri, 22 Oct 2004 00:40:04 -0600
Subject: [vtkusers] update render window
Message-ID: <c73745b704102123404258f66@mail.gmail.com>

Hello fellow vtk users.

I am new to this wonderful tool, and I am creating a simple MRI
viewer.  The idea is to have a window (written in wxPython) with
controls for the slice number (in 3 planes).  I want to be able to
load slices one at a time and the render window should update
automatically.  So far, I can only pre-set what slices I want to see,
and render them;  then, if I want to add another one, the render
window crashes.  I just need to know how to update the render window
in Python.  Here's my code.  I will appreciate all the help and
patience you  may have for this newbie.

Sincerely,

Luis Concha




###############################################################
import vtk

class MyViewer:
    """MyViewer.  Class to view an image volume with 1 to 3 ortho slices."""
    global aRenderer
    aRenderer=vtk.vtkRenderer()
    aRenderer.SetBackground(.2,.2,.3)

    def ReadVolume(self,filename,xmin,xmax,ymin,ymax,zmin,zmax):
        """read image volume.  Needs data set dimensions.
           ReadVolume(filename,xmin,xmax,ymin,ymax,zmin,zmax)"""
        global reader
        reader=vtk.vtkImageReader()
        reader.SetFileDimensionality(3)
        reader.SetFileName(filename)
        reader.SetDataExtent(xmin,xmax,ymin,ymax,zmin,zmax)
        reader.SetDataOrigin(0,0,0)
        reader.SetDataSpacing(.5,.5,1)
        reader.UpdateWholeExtent()
        global extent
        extent=reader.GetDataExtent()
        

    def LUT(self,mindata,maxdata):
        """create a lookup table.  mindata and maxdata are extreme values.
        LUT(mindata,maxdata)"""
        global bwlut        
        bwlut=vtk.vtkLookupTable()
        bwlut.SetTableRange(mindata,maxdata)
        bwlut.SetSaturationRange(0,0)
        bwlut.SetHueRange(0,0)
        bwlut.SetValueRange(0,1)
        bwlut.Build()
        

    def axialslice(self,axialnum):
        """get axial slice.  axialnum is the slice to display.
        axialslice(axialnum)"""
        axialcolors=vtk.vtkImageMapToColors()
        axialcolors.SetInput(reader.GetOutput())
        axialcolors.SetLookupTable(bwlut)
        axial=vtk.vtkImageActor()
        axial.SetInput(axialcolors.GetOutput())
        axial.SetDisplayExtent(extent[0],extent[1],extent[2],extent[3],axialnum,axialnum)
        aRenderer.AddActor(axial)        

    def sagitalslice(self,sagnum):
        """get sagital slice.  sagnum is the slice to display.
        sagitalslice(sagnum)"""
        sagcolors=vtk.vtkImageMapToColors()
        sagcolors.SetInput(reader.GetOutput())
        sagcolors.SetLookupTable(bwlut)
        sagital=vtk.vtkImageActor()
        sagital.SetInput(sagcolors.GetOutput())
        sagital.SetDisplayExtent(sagnum,sagnum,extent[2],extent[3],extent[4],extent[5])
        aRenderer.AddActor(sagital)

    def coronalslice(self,cornum):
        """get coronal slice. cornum is the slice to display.
        coronalslice(cornum)"""
        corcolors=vtk.vtkImageMapToColors()
        corcolors.SetInput(reader.GetOutput())
        corcolors.SetLookupTable(bwlut)
        coronal=vtk.vtkImageActor()
        coronal.SetInput(corcolors.GetOutput())
        coronal.SetDisplayExtent(extent[0],extent[1],cornum,cornum,extent[4],extent[5])
        aRenderer.AddActor(coronal)
        
    def display(self,x,y):
        """Display the slices the render window. x and y are window
size (pixels)
        display()"""
        aRenderer.ResetCamera()
        renwin=vtk.vtkRenderWindow()
        renwin.AddRenderer(aRenderer)
        renwin.SetSize(x,y)
        renwin.Render()                 #start!
        #set the interactor
        global iren
        iren=vtk.vtkRenderWindowInteractor()
        iren.SetRenderWindow(renwin)
        style=vtk.vtkInteractorStyleTrackballCamera()
        iren.SetInteractorStyle(style)
        iren.Initialize()
        iren.Start()
        key=iren.GetKeySym()
        if key=="q":
           iren.TerminateApp()
        iren.ExitCallback()


From trull78yaoo at yahoo.de  Fri Oct 22 03:25:16 2004
From: trull78yaoo at yahoo.de (trull78yaoo)
Date: Fri, 22 Oct 2004 09:25:16 +0200
Subject: [vtkusers] stereoskopic view with two projectors
Message-ID: <20041022072929.E681B2D989@public.kitware.com>

Hi all,

now somebody how can i test the stereoscopic view without vtk.
Because i have no stereoscopic effect with my
nvidia quadro fx500 in vtk. Can somebody help me?
Which settinge need Windows, graphic card or vtk?
My settings for graphic card: display mode is Clone,
enable stereo in OpenGL and the stereo display mode
is set to nView Clone.
Here my code:

#include "vtkConeSource.h"
#include "vtkPolyDataMapper.h"
#include "vtkRenderWindow.h"
#include "vtkRenderWindowInteractor.h"
#include "vtkCamera.h"
#include "vtkActor.h"
#include "vtkRenderer.h"
#include "vtkInteractorStyleTrackballCamera.h"


int main( int argc, char *argv[] )
{
  vtkConeSource *cone = vtkConeSource::New();
  cone->SetHeight( 3.0 );
  cone->SetRadius( 1.0 );
  cone->SetResolution( 1000 );
  
  vtkPolyDataMapper *coneMapper = vtkPolyDataMapper::New();
  coneMapper->SetInput( cone->GetOutput() );

  vtkActor *coneActor = vtkActor::New();
  coneActor->SetMapper( coneMapper );

  vtkRenderer *ren1= vtkRenderer::New();
  ren1->AddActor( coneActor );
  ren1->SetBackground( 0.1, 0.2, 0.4 );
	
  vtkRenderWindow *renWin = vtkRenderWindow::New();
  renWin->StereoCapableWindowOn();
  renWin->SetStereoTypeToCrystalEyes();
  // renWin->SetStereoTypeToDresden();
  renWin->StereoRenderOn();
  renWin->SetFullScreen(1);
  renWin->AddRenderer( ren1 );

  vtkRenderWindowInteractor *iren = vtkRenderWindowInteractor::New();
  iren->SetRenderWindow(renWin);

  vtkInteractorStyleTrackballCamera *style = 
    vtkInteractorStyleTrackballCamera::New();
  iren->SetInteractorStyle(style);

  iren->Initialize();
  iren->Start();
  
  cone->Delete();
  coneMapper->Delete();
  coneActor->Delete();
  ren1->Delete();
  renWin->Delete();
  iren->Delete();
  style->Delete();

  return 0;
}

Thank J?rg



From specht at ifi.unizh.ch  Fri Oct 22 03:47:33 2004
From: specht at ifi.unizh.ch (matthias specht)
Date: Fri, 22 Oct 2004 09:47:33 +0200
Subject: [vtkusers] java pipeline browser
In-Reply-To: <20041021214628.5B9BE2EBAB@public.kitware.com>
References: <20041021214628.5B9BE2EBAB@public.kitware.com>
Message-ID: <4178BB15.8010408@ifi.unizh.ch>

hi steve, i was looking for the same a while ago and wrote a little 
"proof-of-concept" test in java. it's very primitive...but if you're 
interested I could send it to you. I don't have the time to develop 
something serious, but I would be very interested if somebody else does...

greets

matthias

>Message: 1
>Date: Thu, 21 Oct 2004 12:09:14 -0400
>From: "Steve M. Robbins" <steven.robbins at videotron.ca>
>Subject: [vtkusers] java pipeline browser
>To: vtkusers at vtk.org
>Message-ID: <20041021160914.GE22095 at nyongwa.montreal.qc.ca>
>Content-Type: text/plain; charset=us-ascii
>
>Howdy,
>
>I've used and really liked the VTK pipeline browser that comes with
>MayaVi, which is written in Python.  I know that a similar browser
>exists in Tcl.
>
>I imagine that a similar beast could be done in Java, with its
>reflection capability.  Does such a beast exist?
>
>Thanks,
>-Steve
>  
>



From jxjx at sjtu.edu.cn  Fri Oct 22 05:14:05 2004
From: jxjx at sjtu.edu.cn (jiang-gx)
Date: Fri, 22 Oct 2004 17:14:05 +0800
Subject: [vtkusers] the memory allocation problem
Message-ID: <20041022091527.B4F9D7B0240@mx1.sjtu.edu.cn>

hi:  
   i am developing a project using the vtk as image packet. my computer's memory size is 2G ,and the  testing data is a  dicom format medical image data ,which dimension is 512*512*549. but when i read the whole data , the system will throw  out a memory allcation error,but the memory is enough. (and if i read just a part of the data ,it will succeed.)

  can anyone help me? thanks a lot!
 				

????????jiang-gx
????????jxjx at sjtu.edu.cn
??????????2004-10-22

From ningcao at uky.edu  Fri Oct 22 10:37:34 2004
From: ningcao at uky.edu (Ning Cao)
Date: Fri, 22 Oct 2004 10:37:34 -0400
Subject: [vtkusers] how to link with .so file under linux?
Message-ID: <41791B2E.8010908@uky.edu>

hi all,
   I am sorry for asking a CMake question here.
   Could anyone kind enough tell me how to link a .so file to my 
executable file in CMake?


   Thank you for help.

Yours,
Ning


From lost_bits1110 at hotmail.com  Fri Oct 22 11:38:18 2004
From: lost_bits1110 at hotmail.com (Louis Desjardins)
Date: Fri, 22 Oct 2004 15:38:18 +0000
Subject: [vtkusers] vtkInteractorStyleTrackball 
Message-ID: <BAY16-F285DWG6tACfE00009afb@hotmail.com>

Hello,

has anyone used a vtk class to interface to a trackball?? I've checked some 
of the 'trackball' classes but it doesnt seem fully implemented.. I want to 
associate motion of the trackball itself with my image..
Or shoudl I be resorting to something else?

Thank you

_________________________________________________________________
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From jichang at startechsoft.net  Fri Oct 22 11:44:48 2004
From: jichang at startechsoft.net (Jichang-Startech)
Date: Fri, 22 Oct 2004 11:44:48 -0400
Subject: [vtkusers] Dynamic number of mappers 
References: <c73745b704102123404258f66@mail.gmail.com>
Message-ID: <066001c4b84e$10e21b70$0400a8c0@STARTECH1>

Hi, all:

I have many geometries with each one assigned a different color. I guess that I must use one mapper for each color. Say, if I have 5 geometries, I have to use 5 mappers.

Unfortunately, the total number of geometries is dynamic and depends on the user selection. How can I set a dynamic number of mappers in VTK?

Thank you for help in advance.

Jichang
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From steuwer at ill.fr  Fri Oct 22 12:51:19 2004
From: steuwer at ill.fr (Axel Steuwer)
Date: Fri, 22 Oct 2004 18:51:19 +0200 (CEST)
Subject: [vtkusers] java pipeline browser
In-Reply-To: <4178BB15.8010408@ifi.unizh.ch>
References: <20041021214628.5B9BE2EBAB@public.kitware.com>
	<4178BB15.8010408@ifi.unizh.ch>
Message-ID: <55428.193.49.43.124.1098463879.squirrel@mail.ill.fr>

hi,

i was looking for something like that, too. could
you send me a copy, perhaps?
many thanks,

axel

> hi steve, i was looking for the same a while ago and wrote a little
> "proof-of-concept" test in java. it's very primitive...but if you're
> interested I could send it to you. I don't have the time to develop
> something serious, but I would be very interested if somebody else
> does...
>
> greets
>
> matthias
>
>>Message: 1
>>Date: Thu, 21 Oct 2004 12:09:14 -0400
>>From: "Steve M. Robbins" <steven.robbins at videotron.ca>
>>Subject: [vtkusers] java pipeline browser
>>To: vtkusers at vtk.org
>>Message-ID: <20041021160914.GE22095 at nyongwa.montreal.qc.ca>
>>Content-Type: text/plain; charset=us-ascii
>>
>>Howdy,
>>
>>I've used and really liked the VTK pipeline browser that comes with
>> MayaVi, which is written in Python.  I know that a similar browser
>> exists in Tcl.
>>
>>I imagine that a similar beast could be done in Java, with its
>>reflection capability.  Does such a beast exist?
>>
>>Thanks,
>>-Steve
>>
>>
>
> _______________________________________________
> This is the private VTK discussion list.
> Please keep messages on-topic. Check the FAQ at:
> <http://public.kitware.com/cgi-bin/vtkfaq> Follow this link to
> subscribe/unsubscribe:
> http://www.vtk.org/mailman/listinfo/vtkusers





From jak4.scr at gmx.net  Fri Oct 22 14:06:33 2004
From: jak4.scr at gmx.net (=?ISO-8859-1?Q?=22Johannes_K=E4fer=22?=)
Date: Fri, 22 Oct 2004 20:06:33 +0200 (MEST)
Subject: [vtkusers] [Try Again] Multiple Volumes with one Renderer
References: <5068.1098129430@www68.gmx.net>
Message-ID: <2564.1098468393@www47.gmx.net>

Okay answering my own question.

I had to modify two files in order to get the desired result. 
1) vtkWin32OpenGLRenderWindow.cxx
   There I had to enable the stencil buffer (which was disabled). In the
function void vtkWin32OpenGLRenderWindow::SetupPixelFormat(...) I had to put
"1" instead of "0" into the line with the comment /* no stencil buffer */
(parameter 12).

2) VtkRenderer.cxx 
  There I made modifications to the "int vtkRenderer::UpdateGeometry()"
function. The changes were made before and in the second for loop (rendering
translucent geometry). See the code below.

	// enable some opengl commands, so we achieve the effect of
	// translucent volumes but not beeing able to see a volume lying behind
	// another volume

	glEnable(GL_DEPTH_TEST);
	// the stencil test basically writes to a different buffer than the frame
buffer
	// and based on the values in the stencil buffer we write a pixel to the
frame buffer or we don't
	glEnable(GL_STENCIL_TEST);
	// we only write to the frame/stencil buffer if the value in the stencil
buffer is 0x0 (zero)
	glStencilFunc(GL_NOTEQUAL, 0x1, 0xff);
	// when drawing, replace the value in the stencil buffer
	glStencilOp(GL_REPLACE, GL_REPLACE, GL_REPLACE);
	// reset the stencil buffer to all zeros (we can draw everywhere)
	glClearStencil(0x0);

	// needed
	glClear(GL_STENCIL_BUFFER_BIT);

	// loop through props and give them a chance to 
	// render themselves as translucent geometry
  	for ( i = 0; i < this->PropArrayCount; i++ ){
		// we need to do this in here because after the RenderTranslucentGeometry
the alpha test is 
		// not enabled any more
		// we need the alpha test too, so we can "blend out" the black area
surrounding our object
		glEnable(GL_ALPHA_TEST);
		// draw only pixels with a alpha value greater than 0.00001, this should
also work with zero
		// as the background should have zero alpha but it doesn't (maybe float
inaccurancy)
		glAlphaFunc(GL_GREATER, 0.00001);
	
		this->NumberOfPropsRendered +=
this->PropArray[i]->RenderTranslucentGeometry(this);
	}

	// disable the stencil and alpha test
	glDisable(GL_STENCIL_TEST);
	glDisable(GL_ALPHA_TEST);


Hope this helps someone.

Regards
  Johannes







> Hi,
> 
> I'm trying to render two or more Volumes with one Renderer. I don't want
> to
> be able to see a volume lying behind the volume in front. Can someone give
> me a hint?
> 
> More detailed. I'm rendering two volumes in one renderer as said above.
> This
> works quite nice. I'm using the vtkVolumeRayCastMapper with the
> vtkVolumeRayCastCompositeFunction.
> The Volumes I render are quite translucent so when I have two volumes I
> can
> see the volume lying behind the first one. I don't want this to happen. I
> want to stop the raycasting when I enter a new Volume. Is there any way
> this
> can be done/ has already been done? If not were to start modifying vtk in
> order to get it done.
> 
> Thank you for your help.
> 
> best regards
>   Johannes
> Regards
>   Johannes
> 
> 
> -- 
> GMX ProMail mit bestem Virenschutz http://www.gmx.net/de/go/mail
> +++ Empfehlung der Redaktion +++ Internet Professionell 10/04 +++
> 
> _______________________________________________
> This is the private VTK discussion list. 
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From lindsey at sci.utah.edu  Fri Oct 22 15:51:17 2004
From: lindsey at sci.utah.edu (Lindsey McAninch)
Date: 22 Oct 2004 13:51:17 -0600
Subject: [vtkusers] (no subject)
Message-ID: <1098474677.7734.5.camel@widlar.sci.utah.edu>

I can't seem to figure out how to create a color map for vtkPolyData.  A
pointer in the right direction would be much appreciated.  PLEASE help
if you know or even may know.  Thanks!

Lindsey McAninch
-- 
Lindsey McAninch <lindsey at sci.utah.edu>



From beau.sapach at ualberta.ca  Fri Oct 22 18:02:29 2004
From: beau.sapach at ualberta.ca (Beau Sapach)
Date: Fri, 22 Oct 2004 16:02:29 -0600
Subject: [vtkusers] Window/Level and vtkImageActor
Message-ID: <200410222200.i9MM0R71024398@pilsener.srv.ualberta.ca>

Hello everyone,

How does one set the window/level using vtkImageActor?  Using vtkActor2D I
would simply call its mapper's SetColorWindow() and SetColorLevel()
functions..... 

Thanks!

Beau




From petwa055 at student.liu.se  Sun Oct 24 05:23:13 2004
From: petwa055 at student.liu.se (Peter Wallin)
Date: Sun, 24 Oct 2004 11:23:13 +0200
Subject: [vtkusers] animation and interaction at the same time
Message-ID: <21c9cf21fcd4.21fcd421c9cf@liu.se>

Hi all vtk users!

Im currently writing an app where I animate  FEM calcualtions. Now I wnat to interact (zoom and rotate) the data at the same time.

How do I approach this? Is multithreading the best way? or how to approach it?
If you have any good ideas please let me know. I havent approached multithreading in vtk, are there any examples?

best regards
/Peter



From sscomp2004 at yahoo.com.au  Sun Oct 24 11:05:16 2004
From: sscomp2004 at yahoo.com.au (s comp)
Date: Mon, 25 Oct 2004 01:05:16 +1000 (EST)
Subject: [vtkusers] Are the cells of unstructured grids broken into
	tetrahedra for contouring?
Message-ID: <20041024150516.74436.qmail@web61105.mail.yahoo.com>

Are the cells of unstructured grids broken into tetrahedra for contouring?
 
Thanks,
 
Sonam



---------------------------------
Find local movie times and trailers on Yahoo! Movies.
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From stefano.perticoni at virgilio.it  Sun Oct 24 19:53:27 2004
From: stefano.perticoni at virgilio.it (stefano perticoni)
Date: Mon, 25 Oct 2004 01:53:27 +0200
Subject: [vtkusers] Cell data visualization for meshes made of parabolic
	tetra in vtk4.2 is crashing the application
Message-ID: <414B19D300FD2610@vsmtp12.tin.it> (added by postmaster@virgilio.it)

Dear vtk users,

I'm trying to visualize cell data for meshes made of parabolic tetra with
vtk 4.2. Cell data visualization is crashing the application while point
data displaying is ok. Here is a little test program with some test data to
replicate the problem. To replicate the crash uncomment the "# PDM
SetScalarMode 2" line and comment the  "# PDM SetScalarMode 0" line.
Please let me know if I'm doing some mistakes trying to visualize this data.

Regards,
Stefano Perticoni

# -------------------------------------
#   test program
# -------------------------------------


package require vtk
package require vtkinteraction
package require vtktesting

vtkRenderer R
   R SetBackground 0.5 0.5 0.5 
   R SetLightFollowCamera 1

vtkRenderWindow RW
   RW AddRenderer R
   RW AddRenderer R
   RW SetSize 500 451 

vtkRenderWindowInteractor RWI
   RWI SetRenderWindow RW
   RWI SetLightFollowCamera 1

vtkUnstructuredGridReader UGR
   UGR SetFileName 2Tetra10Nodes.vtk

vtkDataSetSurfaceFilter DSSF
   DSSF SetInput [UGR GetOutput]
   DSSF SetUseStrips 0

vtkPolyDataMapper PDM
   PDM SetInput [DSSF GetOutput]
   PDM SetNumberOfPieces 1
   PDM SetScalarRange 0 1 
   PDM SetColorMode 0
   PDM SetResolveCoincidentTopology 0
   PDM SetScalarMode 0
   # -------------------------------------
   # Why set scalar mode to use cell data is crashing the pipeline ??
   # -------------------------------------
   # PDM SetScalarMode 2	

   PDM SetImmediateModeRendering 0
   PDM SetScalarVisibility 1
   PDM SetUseLookupTableScalarRange 0

vtkActor A
   A SetMapper PDM
   A SetOrigin 0 0 0 
   A SetPosition 0 0 0 
   A SetScale 1 1 1 
   A SetPickable 1
   A SetVisibility 1

   R AddActor A

R ResetCamera
R ResetCameraClippingRange
RW Render
#RWI Start

;# To enable a console, uncomment next line
#console show
wm withdraw .

update


# -------------------------------------
#   test data  2Tetra10Nodes.vtk
# -------------------------------------

# vtk DataFile Version 2.0 
Vtk Unstructured Grid input file for fem 
ASCII
DATASET UNSTRUCTURED_GRID
POINTS 14 float
10.0000000000       10.0000000000       0.00000000000    
5.00000000000       5.00000000000       0.00000000000    
10.0000000000       5.00000000000       5.00000000000    
5.00000000000       10.0000000000       5.00000000000    
7.50000000000       7.50000000000       0.00000000000    
7.50000000000       5.00000000000       2.50000000000    
10.0000000000       7.50000000000       2.50000000000    
7.50000000000       10.0000000000       2.50000000000   
5.00000000000       7.50000000000       2.50000000000    
7.50000000000       7.50000000000       5.00000000000    
4.99983835220       4.99983835220       4.99983835220    
4.99991917610       7.49991917610       4.99991917610    
4.99991917610       4.99991917610       2.49991917610    
7.49991917610       4.99991917610       4.99991917610    

CELLS 2 22
10 0 1 2 3 4 5 6 7 8 9
10 3 1 2 10 8 5 9 11 12 13

CELL_TYPES 2
24
24

POINT_DATA 14 
SCALARS scalars float 1
LOOKUP_TABLE default
0
0.5
0.7
0.1
0
0.5
0.7
0.1
0
0.5
0
0.5
0.7
0.1

CELL_DATA 2 
SCALARS scalars float 1
LOOKUP_TABLE default
0.2
0.5

# -------------------------------------






From michnay at freemail.hu  Mon Oct 25 06:08:00 2004
From: michnay at freemail.hu (=?ISO-8859-2?Q?Michnay_Bal=E1zs?=)
Date: Mon, 25 Oct 2004 12:08:00 +0200 (CEST)
Subject: [vtkusers] Labeling
Message-ID: <freemail.20040925120800.39479@fm13.freemail.hu>

Hi there,
I have two questions.
Firstly, I'd like to know how should a vtkImageThreshold object be set 
to perform BINARY thresholding? Because my application performs 
thresholding with multi-color output...
Secondly, I'd like to know if there was a way to label a vtkImageData, 
which was thresholded earlier (with vtkImageThreshold). (coherent 
components get different labels).

thanks,
 MB



From ramakrishna.prakash at quest-global.com  Mon Oct 25 06:17:40 2004
From: ramakrishna.prakash at quest-global.com (R K Shyam Prakash)
Date: Mon, 25 Oct 2004 15:47:40 +0530
Subject: [vtkusers] vtkSTLReader does not accept foreign characters in file
	name
In-Reply-To: <LGEEICMBGMOGCJKAGDHLOECACAAA.shijith@ddd.co.jp>
Message-ID: <029101c4ba7b$de09bb60$7ef0d103@questgedc.com>

Hi,
     I am using vtkSTLReader to read the STL files in my application.
Suppose my stl file has a foreign character in the path, then that
character is ignored and I am not able to read that file. For example if
the stl file path is "D:\STLFiles\ my?file.stl" the character "?" is
ignored by the vtkSTLReader. Is there any workaround for this problem?

Thanks,
Shyam



From specht at ifi.unizh.ch  Mon Oct 25 06:43:48 2004
From: specht at ifi.unizh.ch (matthias specht)
Date: Mon, 25 Oct 2004 12:43:48 +0200
Subject: [vtkusers] java pipeline browser
In-Reply-To: <BEE18CF6-2449-11D9-88A1-000393A467E2@web.de>
References: <20041021214628.5B9BE2EBAB@public.kitware.com>
	<4178BB15.8010408@ifi.unizh.ch>
	<BEE18CF6-2449-11D9-88A1-000393A467E2@web.de>
Message-ID: <417CD8E4.5080108@ifi.unizh.ch>

hi all,
there seems to be some interest for my code. so here it is - sorry for the lengthy post. as I said, it's not very sophisticated...if somebody developes something more advanced, it would be great if you would pass it back to the comunity. 

regards

matthias

-----------------------------------

import vtk.*;
import java.lang.reflect.*;

// export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:~/apps/VTK/bin/
// javac -classpath ~/apps/VTK/bin/vtk.jar JVTKPipelineBrowser.java
// java -classpath ~/apps/VTK/bin/vtk.jar:. JVTKPipelineBrowser 


public class JVTKPipelineBrowser {
    public class JVTKPipelineReader implements Runnable {
	public JVTKPipelineReader(vtkRenderWindow renW) {
	    _renW = renW;
	}

	public void run() {
	    System.out.println("pipe reader started");

	    // renderers
	    vtkRendererCollection rendCol = _renW.GetRenderers();
	    System.out.println("nr. of Renderers: " + rendCol.GetNumberOfItems());

	    rendCol.InitTraversal();
	    vtkRenderer ren = rendCol.GetNextItem();
	    while(ren != null) {
		System.out.println("found renderer: " + ren.Print());
		printJavaClass(ren);

		// actors
		vtkActorCollection actCol = ren.GetActors();
		System.out.println("nr. of Actors: " + actCol.GetNumberOfItems());
		actCol.InitTraversal();
		vtkActor act = actCol.GetNextItem();
		while(act != null) {
		    System.out.println("found Actor: " + act.Print());
		    printJavaClass(act);

		    // mapper
		    vtkMapper map = act.GetMapper();
		    System.out.println("found Mapper: " + map.Print());

		    // dataset
		    vtkDataSet set = map.GetInputAsDataSet();
		    System.out.println("found DataSet: " + set.Print());
		    
		    // source
		    vtkSource src = set.GetSource();
		    System.out.println("found Source: " + src.Print());

		    act = actCol.GetNextItem();
		}

		ren = rendCol.GetNextItem();
	    }

	} 	

	// print java class information. lots of stuff.
	// and there is more....fields, interfaces, private shit....
	// todo: query some values. which ones?
	public void printJavaClass(Object o) {
	    Class c = o.getClass();
	    while(c != null) {
		Method[] m = c.getDeclaredMethods();
		for(int i=0; i<m.length; i++) {
		    String s = m[i].toString();
		    if(s.startsWith("public"))
			System.out.println(s);
		}
		c = c.getSuperclass();
	    }
	}

	private vtkRenderWindow _renW;
    }


  // in the static contructor we load in the native code
  // The libraries must be in your path to work
  static { 
    System.loadLibrary("vtkCommonJava"); 
    System.loadLibrary("vtkFilteringJava"); 
    System.loadLibrary("vtkIOJava"); 
    System.loadLibrary("vtkImagingJava"); 
    System.loadLibrary("vtkGraphicsJava"); 
    System.loadLibrary("vtkRenderingJava"); 
  }

    public void startReader(vtkRenderWindow renW) {
	JVTKPipelineReader r = new JVTKPipelineReader(renW);
	Thread t = new Thread(r);
	t.start();
    }

  // Define the callback
  public void myCallback()
  {
    System.out.println("my bloody callback");
  }

  // now the main program
  public static void main (String []args) {
    //
    // Now we create the pipeline as usual, see Cone.java in Step1 for details
    //
    vtkConeSource cone = new vtkConeSource();
    cone.SetHeight( 3.0 );
    cone.SetRadius( 1.0 );
    cone.SetResolution( 10 );
  
    vtkPolyDataMapper coneMapper = new vtkPolyDataMapper();
    coneMapper.SetInput( cone.GetOutput() );
    vtkActor coneActor = new vtkActor();
    coneActor.SetMapper( coneMapper );

    vtkTextSource text = new vtkTextSource();
    text.SetText("yo man, easy!");
    vtkPolyDataMapper textMapper = new vtkPolyDataMapper();
    textMapper.SetInput( text.GetOutput() );
    vtkActor textActor = new vtkActor();
    textActor.SetMapper( textMapper );

    vtkRenderer ren1 = new vtkRenderer();
    ren1.AddActor( coneActor );

    ren1.AddActor( textActor );

    ren1.SetBackground( 0.1, 0.2, 0.4 );

    // Add the observer here, the first argument is the event name
    // the second argument is the instance to invoke the method on
    // the third argument is which method to invoke
    JVTKPipelineBrowser me = new JVTKPipelineBrowser();
    ren1.AddObserver("StartEvent",me,"myCallback");

    // setup the window
    vtkRenderWindow renWin = new vtkRenderWindow();
    renWin.AddRenderer( ren1 );
    renWin.SetSize( 300, 300 );
    

     // 
    // The vtkRenderWindowInteractor class watches for events (e.g., keypress,
    // mouse) in the vtkRenderWindow. These events are translated into event
    // invocations that VTK understands (see VTK/Common/vtkCommand.h for all
    // events that VTK processes). Then observers of these VTK events can
    // process them as appropriate.
    vtkRenderWindowInteractor iren = new vtkRenderWindowInteractor();
    iren.SetRenderWindow(renWin);

    //
    // By default the vtkRenderWindowInteractor instantiates an instance
    // of vtkInteractorStyle. vtkInteractorStyle translates a set of events
    // it observes into operations on the camera, actors, and/or properties
    // in the vtkRenderWindow associated with the vtkRenderWinodwInteractor. 
    // Here we specify a particular interactor style.
    vtkInteractorStyleTrackballCamera style = 
        new vtkInteractorStyleTrackballCamera();
    iren.SetInteractorStyle(style);

    //
    // Unlike the previous examples where we performed some operations and then
    // exited, here we leave an event loop running. The user can use the mouse
    // and keyboard to perform the operations on the scene according to the
    // current interaction style.
    //

    
    //
    // Initialize and start the event loop. Once the render window appears,
    // mouse in the window to move the camera. The Start() method executes
    // an event loop which listens to user mouse and keyboard events. Note
    // that keypress-e exits the event loop. (Look in vtkInteractorStyle.h
    // for a summary of events, or the appropriate Doxygen documentation.)
    //
    iren.Initialize();

    me.startReader(renWin);

    iren.Start();


    //

  }
}


-- 
matthias specht
| mailto:specht at ifi.unizh.ch  http://www.ifi.unizh.ch/staff/specht
office
| morphometrics lab, institute for anthropology, university of zurich
| winterthurerstr. 190, 8057 zurich, switzerland
| phone +41-44-635-54-28 fax +41-44-635-68-04



From bluehorse at digitus.cz  Mon Oct 25 07:45:20 2004
From: bluehorse at digitus.cz (Andreas Bednarek)
Date: Mon, 25 Oct 2004 13:45:20 +0200
Subject: [vtkusers] VTK good for games?
Message-ID: <0e0901c4ba88$1e403720$a3c77252@ziho>

Hello all,

would anyone say, that using VTK for a 3D game engine is a good idea?
How is it with VTK's performance?


Thank you for suggestions
A.B.


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From olli.hornung at gmx.de  Mon Oct 25 09:39:01 2004
From: olli.hornung at gmx.de (Oliver Hornung)
Date: Mon, 25 Oct 2004 15:39:01 +0200 (MEST)
Subject: [vtkusers] Texture Mapping
Message-ID: <17773.1098711541@www45.gmx.net>

Hi VTK-Users!
I am pretty new to VTK! I have the following problem. From a video sequence
I reconstructed a 3D scene (point cloud) as well as the camera locations.
Using all the different views of the cameras I would now like to ?map? this
image information onto the scene to make it look realistic. I have no idea
if this is possible using VTK. At this time I reconstructed the surface of
the point cloud successfully using a surface reconstruction filter but now I
am stuck. 
Thanks for any help in advance.  
Oliver

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From vtkdicom at 163.com  Mon Oct 25 10:27:43 2004
From: vtkdicom at 163.com (vtkdicomer)
Date: Mon, 25 Oct 2004 22:27:43 +0800
Subject: [vtkusers] request for help about "how to dicom read into and out
	dicom files" 
Message-ID: <20041025143324.696F92F77E@public.kitware.com>

hello,
i am a VC programming freshman deal with dicom file. Now i have a problem that is i want to read a dicom data from CT by programming which will use MFC, wherea not by software directly. And what kind of struct could I define to save my read result in other data type (eg. save picture in BMP type, and person name in char type). how could I make this problem out? 
      thanks a lot !
                                               hongsongyang  (a new vtkdicomer)

	
???
????????vtkdicom at 163.com
??????????2004-10-25

From sean at millwood.ca  Mon Oct 25 11:24:49 2004
From: sean at millwood.ca (Sean Richards)
Date: Mon, 25 Oct 2004 11:24:49 -0400 (EDT)
Subject: [vtkusers] Interactors
Message-ID: <16177610.1098717889522.JavaMail.sean@millwood.ca>

Hello!

I would like to use vtkInteractorStyleJoystickActor, but I also want to be able to catch keyboard events.

I was able to catch keyboard events by using
vtkInteractorStyleUser

and the method GetKeySym()

I cannot find a way to get which key was pressed by using vtkInteractorStyleJoystickActor.

Thanks for any help!

Sean

From alexander.trum at teraport.de  Mon Oct 25 11:44:19 2004
From: alexander.trum at teraport.de (Alexander Trum)
Date: Mon, 25 Oct 2004 17:44:19 +0200
Subject: [vtkusers] Looking for a graduand and an intern
Message-ID: <417D1F53.2010400@teraport.de>

Hello

We are a German service company working for automotive industry here in
Germany like BMW, Daimler Chrysler, VW and so on.
In some projects we develop software for our customers.
Now we are looking for a graduand and an intern for software development.
Attached are two profiles. One for the graduand and the second one for
the intern.
These documents are in german because we are looking for persons which
are good in speaking german.
Graduands with good knowledge in VTK and wxWidget will be prefered.

profile for the graduand:

Standort:
Muenchen

Stellenbezeichnung:
Diplomarbeit zur Entwicklung eines 3D-Viewers

Aufgabengebiet:
Software-Entwicklung
Entwicklung eines 3D-Viewers fuer alle Plattformen (Entwicklung unter 
Linux, Portierung auf Unix und Windows)
Der Viewer soll die Moeglichkeit bieten, grosse Mengen von polygonalen 
3D-Modellen sowie deren Animation zu visualisieren. Die geforderte 
Performance soll mit Hilfe eines geeigneten Cache-Konzeptes realisiert 
werden. Eine Kopplung des Viewers an batchfaehige 
Simulations-Software-Module macht ihn zur Kommandozentrale und zum 
Monitoringwerkzeug fuer komplexe Berechnungslaeufe.

Qualifikationsprofil:
Studiengang Informatik oder verwandtes Studium
Erfahrung mit C++, wxWidget, QT, oder anderen Technologien
Erfahrungen in der Visualisierung (OpenGL, VTK, oder aehnliche Technologien)
Entwicklung unter Linux



profile for the intern:
Standort:
Muenchen

Stellenbezeichnung:
Praktikum zur Entwicklung eines Datenkonvertierungsmoduls

Aufgabengebiet:
Software-Entwicklung
Entwicklung eines flexiblen Datenkonvertierungsmoduls zum Lesen von 
VRML-Modellen.
Aufgrund der sehr unterschiedlichen Auslegung des VRML-Standards 
schreiben unterschiedliche Applikationen unterschiedliche VRML-Modelle. 
Aufbauend auf einem bestehenden VRML-Reader, der den Austausch von 
VRML-Modellen nur mit bestimmten Applikationen ermoeglicht, soll ein 
flexibler VRML-Reader entwickelt werden, der unabhaengig von der 
Applikation alle VRML-Modelle liest.

Qualifikationsprofil:
Studiengang Informatik oder verwandtes Studium
Erfahrung mit C++, Lex/Flex und Yacc/Bison
Entwicklung unter Linux



Best regards
    Alexander Trum

-- 
Alexander Trum
Dipl.-Math. (FH)
Senior Software Developer
Engineering IT Consulting
Teraport GmbH
Phone +49 89 651086 721
Fax +49 89 651086 701
Mobile +49 173 38 25 490
mailto:alexander.trum at teraport.de
http://www.teraport.de





From beau.sapach at ualberta.ca  Mon Oct 25 12:42:41 2004
From: beau.sapach at ualberta.ca (Beau Sapach)
Date: Mon, 25 Oct 2004 10:42:41 -0600
Subject: [vtkusers] moving actor2d
Message-ID: <200410251640.i9PGef59011753@pilsener.srv.ualberta.ca>

Hello everyone,

I have a problem with moving an actor2d and vtkPropPicker.  The picker will
only find the actor if the pick() method gets xy coordinates starting from
0,0 and extending to the xy limits of the actor.  So, no matter where the
actor is positioned in the window, I have to click near the lower left
corner in order to pick it..... can anyone help me with this?

Thanks! 

Beau



From zj_best at eyou.com  Mon Oct 25 13:35:35 2004
From: zj_best at eyou.com (ÕŽø)
Date: 26 Oct 2004 01:35:35 +0800
Subject: [vtkusers] help for MPI techniques in 3d restruction
Message-ID: <298725736.30440@eyou.com>

I have written some code about 3d restruction using isosurface techniques,but
i
 find that the the result of restruction of blood vessel is very bad,and then
i  smoothed it ,but the result is still awful,i have heard that the MIP
technique can do this job well,but i can't find out how can i do it with
VTK,Does VTK provide this technique?thank you for reading:)

          Best Wishes!
                                           
                                                      ZhangJin





--http://www.eyou.com
--??????????????????  ????????  ????????  ????????  ????????...????????

--http://vip.eyou.com
--????????????VIP????  ??????????????????




From snrf at no-log.org  Mon Oct 25 14:20:08 2004
From: snrf at no-log.org (freshy flo)
Date: Mon, 25 Oct 2004 14:20:08 -0400
Subject: [vtkusers] problem in mapping colors
Message-ID: <417D43D8.2040400@no-log.org>

Hello all vtk users,

I have a simple code to open a STL file that works fine.  This file 
contains only one structure (bone tissue) and i'm able to give a color 
to it ((1,0.5,0);). But what I can't set so far is the a color of the 
rest of the information in the stl file (the bone marrow). I have to 
precise that the STL file are created from Binarised images.

 vtkSTLReader *sr = vtkSTLReader::New();
     sr->SetFileName ("porous.stl");

 vtkPolyDataNormals *pNormals = vtkPolyDataNormals::New();
     pNormals->SetFeatureAngle (80);
     pNormals->SetInput(sr->GetOutput());

 vtkPolyDataMapper *stlMapper = vtkPolyDataMapper::New();
     stlMapper->SetInput(pNormals->GetOutput());
    stlMapper->SetColorModeToMapScalars();
    stlMapper->ScalarVisibilityOff();
   
   
    vtkActor *stlActor = vtkActor::New();
     stlActor->SetMapper(stlMapper);
     stlActor->GetProperty()->SetColor(1,0.5,0); // bone color ???? how 
to give a color to the marrow ?????
     stlActor->GetProperty()->SetInterpolationToGouraud();

 ren->AddActor(stlActor);
 ren->SetBackground(0,0,0);

  // draw the resulting scene
 renWindow->SetSize( 300, 300 );
 renWindow->Render();
 //Start the interactor
 iren->Start();

If anyone could point me to some suggestions .....
Jean


From gil at femplusplus.com  Mon Oct 25 17:08:16 2004
From: gil at femplusplus.com (Gil at FEMplusplus.com)
Date: Mon, 25 Oct 2004 23:08:16 +0200
Subject: [vtkusers] Problem upgrading from VTK3.1 (UG+Field)
Message-ID: <001e01c4bad6$c4240880$780aa8c0@JUPITER>

Hi,
When upgrading an old application from VTK3.1 to VTK4.2 I get the following error:
"...could not find the requested method: SetFieldData...  while executing [[Ureader GetOutput] GetPointData] SetFieldData $f"
What the program tries to do is to read an Unstructured grid and its results field from different files, and display the deformed grid (and eventually other results).

Searching the lists, I know that there have been many changes in the FieldData area, but couldn't figure how to change the code.
A simplified tcl file+data files are attached.

Can anyone help?
Thanks,
Gil

Email: gil at femplusplus.com
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From amy.henderson at kitware.com  Mon Oct 25 17:26:20 2004
From: amy.henderson at kitware.com (Amy Henderson)
Date: Mon, 25 Oct 2004 17:26:20 -0400
Subject: [vtkusers] Problem upgrading from VTK3.1 (UG+Field)
In-Reply-To: <001e01c4bad6$c4240880$780aa8c0@JUPITER>
References: <001e01c4bad6$c4240880$780aa8c0@JUPITER>
Message-ID: <6.1.2.0.2.20041025171825.03ce61b0@pop.biz.rr.com>

Hi Gil,

Maybe you've seen this already, this section of the VTK FAQ (now in the VTK 
wiki) should be of help to you: 
http://www.vtk.org/Wiki/VTK_FAQ#Changes_in_VTK_between_3.2_and_4.0. In VTK 
4.2, vtkPointData is a subclass of vtkFieldData. The SetFieldData method 
has been removed. Try using ShallowCopy or DeepCopy instead.

- Amy

At 05:08 PM 10/25/2004, Gil at FEMplusplus.com wrote:
>Hi,
>When upgrading an old application from VTK3.1 to VTK4.2 I get the 
>following error:
>"...could not find the requested method: SetFieldData...  while executing 
>[[Ureader GetOutput] GetPointData] SetFieldData $f"
>What the program tries to do is to read an Unstructured grid and its 
>results field from different files, and display the deformed grid (and 
>eventually other results).
>
>Searching the lists, I know that there have been many changes in the 
>FieldData area, but couldn't figure how to change the code.
>A simplified tcl file+data files are attached.
>
>Can anyone help?
>Thanks,
>Gil
>
>Email: <mailto:gil at femplusplus.com>gil at femplusplus.com
>---
>
>
>
>_______________________________________________
>This is the private VTK discussion list.
>Please keep messages on-topic. Check the FAQ at: 
><http://public.kitware.com/cgi-bin/vtkfaq>
>Follow this link to subscribe/unsubscribe:
>http://www.vtk.org/mailman/listinfo/vtkusers





From rosspan2004 at yahoo.com.cn  Mon Oct 25 20:33:24 2004
From: rosspan2004 at yahoo.com.cn (=?gb2312?q?=FFffffc8=FFffffd9=FFffffbd=FFffffad=20=FFffffc5=FFffffcb?=)
Date: Tue, 26 Oct 2004 08:33:24 +0800 (CST)
Subject: [vtkusers] (no subject)
Message-ID: <20041026003324.51366.qmail@web15706.mail.cnb.yahoo.com>

Can anyone tell me how to use vtkImageViewer in MFC? I am new to VTK. I just want to open an image file and display it in a window under MFC. I am success to do it in console, but I can not do it in MFC.
 
Thanks.




---------------------------------
Do You Yahoo!?
150??MP3????????????
???????????????????
1G??1000???????????
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From Christopher.Moore at noaa.gov  Mon Oct 25 20:43:47 2004
From: Christopher.Moore at noaa.gov (Christopher.Moore at noaa.gov)
Date: Mon, 25 Oct 2004 17:43:47 -0700 (PDT)
Subject: [vtkusers] matrix rotation "jumps"
Message-ID: <Pine.LNX.4.44.0410251736470.23129-100000@kingfisher.pmel.noaa.gov>


I'm using the GetTransformedPosition() method in vtkLight to simply rotate 
a light's position around the origin (as the sun would rotate around the 
earth).

I set up a vtkMatrix4x4 with the proper elements to rotate around the z 
axis, and use a callback to repeatedly call:

light->SetPosition(light->GetTransformedPosition());

It works great until it reaches a certain point in the orbit (angle=3pi/2) 
where it "jumps" to angle=0.

Any ideas?

Just when I thought I was getting good at this,
Chris

sample code (sorry so long):
don't forget to press "u" to see the action...

#include "vtkRenderer.h"
#include "vtkCamera.h"
#include "vtkRenderWindow.h"
#include "vtkRenderWindowInteractor.h"
#include "vtkLight.h"
#include "vtkSphereSource.h"
#include "vtkPolyDataMapper.h"
#include "vtkActor.h"
#include "vtkMatrix4x4.h"
#include "vtkCommand.h"

vtkLight *light;
vtkMatrix4x4 *matrix;

class rotateCallback : public vtkCommand {
public:
  static rotateCallback *New() {
    return new rotateCallback;
  }
  virtual void Execute(vtkObject *caller, unsigned long, void*) {
    vtkRenderWindowInteractor *rwi = 
reinterpret_cast<vtkRenderWindowInteractor*>(caller);
    light->SetPosition(light->GetTransformedPosition());
    rwi->GetRenderWindow()->Render();
  }
};

int main( int argc, char *argv[] ) {

  float angle = 0.1; // radians

  vtkRenderWindow *renWin = vtkRenderWindow::New();
  vtkRenderer *ren = vtkRenderer::New();
  vtkRenderWindowInteractor *iren = vtkRenderWindowInteractor::New();
  vtkSphereSource *ss = vtkSphereSource::New();
  vtkPolyDataMapper *sMapper = vtkPolyDataMapper::New();
  vtkActor *sphereActor = vtkActor::New();

  renWin->AddRenderer(ren);
  iren->SetRenderWindow(renWin);

  matrix = vtkMatrix4x4::New();
  matrix->Identity();
  matrix->SetElement(0, 0, cos(angle));
  matrix->SetElement(0, 1, -1.0 * sin(angle));
  matrix->SetElement(1, 0, sin(angle));
  matrix->SetElement(1, 1, cos(angle));

  light = vtkLight::New();
  light->SetLightTypeToSceneLight();
  light->SetIntensity(1.0);
  light->SetPosition(-1.0,0.0,0.0);
  light->SetFocalPoint(1.0,0.0,0.0);
  light->SetTransformMatrix(matrix);
  light->SwitchOn();
  ren->AddLight(light);

  ss->SetRadius(1.0);
  sMapper->SetInput(ss->GetOutput());
  sphereActor->SetMapper(sMapper);
  ren->AddActor(sphereActor);

  rotateCallback *rotate = rotateCallback::New();
  iren->AddObserver(vtkCommand::UserEvent, rotate);

  iren->Start();

}




From tfogal at apollo.sr.unh.edu  Mon Oct 25 21:12:33 2004
From: tfogal at apollo.sr.unh.edu (tom fogal)
Date: Mon, 25 Oct 2004 21:12:33 -0400
Subject: [vtkusers] matrix rotation "jumps" 
Message-ID: <200410260112.i9Q1CXbF012454@apollo.sr.unh.edu>

I hate when I forget to CC the list...
------- Forwarded Message

From: tom fogal <tfogal at apollo.sr.unh.edu>
To: Christopher.Moore at noaa.gov
Subject: Re: [vtkusers] matrix rotation "jumps" 
In-Reply-To: Your message of "Mon, 25 Oct 2004 17:43:47 PDT."
             <Pine.LNX.4.44.0410251736470.23129-100000 at kingfisher.pmel.noaa.gov> 
References: <Pine.LNX.4.44.0410251736470.23129-100000 at kingfisher.pmel.noaa.gov> 
Date: Mon, 25 Oct 2004 21:12:02 -0400
Sender: tfogal at apollo

 <Pine.LNX.4.44.0410251736470.23129-100000 at kingfisher.pmel.noaa.gov>Christopher
.Moore at noaa.gov writes:
>
>I'm using the GetTransformedPosition() method in vtkLight to simply rotate 
>a light's position around the origin (as the sun would rotate around the 
>earth).
>
>I set up a vtkMatrix4x4 with the proper elements to rotate around the z 
>axis, and use a callback to repeatedly call:

It seems weird to me that you would have to do this. I have yet to try
anything of the sort (in VTK), but intuitively i'd believe that the
underlying graphics library should do this for you and you should only
have to tell it what angle/axes to rotate around. *shrug* I could be
wrong.

Anyway this all boils down to: have you looked for possibly solving
this without explicitly specifying the 4x4 matrix? I would hope that
the 'internal' method (assuming it exists) would "just work".

HTH, and good luck,

- -tom

<snip>

------- End of Forwarded Message



From jichang at startechsoft.net  Mon Oct 25 21:42:50 2004
From: jichang at startechsoft.net (Jichang-Startech)
Date: Mon, 25 Oct 2004 21:42:50 -0400
Subject: [vtkusers] (no subject)
References: <20041026003324.51366.qmail@web15706.mail.cnb.yahoo.com>
Message-ID: <002001c4bafd$1e638f70$0400a8c0@STARTECH1>

Check the example of SDI and change the classes and pipleline function to be used for Image type data.

Jichang
  ----- Original Message ----- 
  From: ?ffffc8?ffffd9?ffffbd?ffffad ?ffffc5?ffffcb 
  To: vtkusers at vtk.org 
  Sent: Monday, October 25, 2004 20:33 PM
  Subject: [vtkusers] (no subject)


  Can anyone tell me how to use vtkImageViewer in MFC? I am new to VTK. I just want to open an image file and display it in a window under MFC. I am success to do it in console, but I can not do it in MFC.

  Thanks.





------------------------------------------------------------------------------
  Do You Yahoo!?
  150????MP3????????????????????????
  ??????????????????????????????????????
  1G????1000??????????????????????


------------------------------------------------------------------------------


  _______________________________________________
  This is the private VTK discussion list. 
  Please keep messages on-topic. Check the FAQ at: <http://public.kitware.com/cgi-bin/vtkfaq>
  Follow this link to subscribe/unsubscribe:
  http://www.vtk.org/mailman/listinfo/vtkusers
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From a.maclean at cas.edu.au  Mon Oct 25 22:24:30 2004
From: a.maclean at cas.edu.au (Andrew Maclean)
Date: Tue, 26 Oct 2004 12:24:30 +1000
Subject: [vtkusers] matrix rotation "jumps"
In-Reply-To: <Pine.LNX.4.44.0410251736470.23129-100000@kingfisher.pmel.noaa.gov>
Message-ID: <200410260224.i9Q2Oa9b015606@lorica.ucc.usyd.edu.au>

What you are seeing is probably correct behavior. I suspect you are
experiencing the dreaded "gimbal-lock".

for a solution, look at:
"Real-Time Rendering"; T. Akenine-M?ller, Eric Haines; 2ndEdn, A.K.Peters
Ltd.
In particular 3.3.2 Quaternions, Rotation from one vector to another. 

This may give you a way of doing it.   

-----Original Message-----
From: Christopher.Moore at noaa.gov [mailto:Christopher.Moore at noaa.gov] 
Sent: Tuesday, 26 October 2004 10:44
To: vtkusers at vtk.org
Subject: [vtkusers] matrix rotation "jumps"

...





From rohlof at gmx.de  Tue Oct 26 03:27:38 2004
From: rohlof at gmx.de (rohlof)
Date: Tue, 26 Oct 2004 09:27:38 +0200
Subject: AW: [vtkusers] matrix rotation "jumps"
In-Reply-To: <Pine.LNX.4.44.0410251736470.23129-100000@kingfisher.pmel.noaa.gov>
Message-ID: <20041026072811.787122B03E@public.kitware.com>

First...the earth rotates around the sun. ;)

Second: Are the other elements of your rotation- and transformation matrix
respectively correct? You should check this (Element(3,3) and Element(4,4)
have to be '1', the others '0').
Perhaps the two positioning functions collide. With your matrix you set
rotation and position (position elements are probably '0') like you do with
'light->SetPosition(-1.0,0.0,0.0)'. Though VTK says that this should work, I
would test it.

Third: I have done this with a transformed actor (Prop3D) by setting
'actor->SetUserTransform(matrix)'. This works fine. But other attempts with
'vtkTransform' or 'vtkLinearTransform' don't work correct. Perhaps there are
some bugs in these functions (or in my code...).

I would try the same with your sphereactor. Afterwards you could see, if the
transforming is working.

Greets, Timo Frenzel.

-----Urspr?ngliche Nachricht-----
Von: vtkusers-bounces at vtk.org [mailto:vtkusers-bounces at vtk.org] Im Auftrag
von Christopher.Moore at noaa.gov
Gesendet: Dienstag, 26. Oktober 2004 02:44
An: vtkusers at vtk.org
Betreff: [vtkusers] matrix rotation "jumps"


I'm using the GetTransformedPosition() method in vtkLight to simply rotate a
light's position around the origin (as the sun would rotate around the
earth).

I set up a vtkMatrix4x4 with the proper elements to rotate around the z
axis, and use a callback to repeatedly call:

light->SetPosition(light->GetTransformedPosition());

It works great until it reaches a certain point in the orbit (angle=3pi/2)
where it "jumps" to angle=0.

Any ideas?

Just when I thought I was getting good at this, Chris

sample code (sorry so long):
don't forget to press "u" to see the action...

#include "vtkRenderer.h"
#include "vtkCamera.h"
#include "vtkRenderWindow.h"
#include "vtkRenderWindowInteractor.h"
#include "vtkLight.h"
#include "vtkSphereSource.h"
#include "vtkPolyDataMapper.h"
#include "vtkActor.h"
#include "vtkMatrix4x4.h"
#include "vtkCommand.h"

vtkLight *light;
vtkMatrix4x4 *matrix;

class rotateCallback : public vtkCommand {
public:
  static rotateCallback *New() {
    return new rotateCallback;
  }
  virtual void Execute(vtkObject *caller, unsigned long, void*) {
    vtkRenderWindowInteractor *rwi =
reinterpret_cast<vtkRenderWindowInteractor*>(caller);
    light->SetPosition(light->GetTransformedPosition());
    rwi->GetRenderWindow()->Render();
  }
};

int main( int argc, char *argv[] ) {

  float angle = 0.1; // radians

  vtkRenderWindow *renWin = vtkRenderWindow::New();
  vtkRenderer *ren = vtkRenderer::New();
  vtkRenderWindowInteractor *iren = vtkRenderWindowInteractor::New();
  vtkSphereSource *ss = vtkSphereSource::New();
  vtkPolyDataMapper *sMapper = vtkPolyDataMapper::New();
  vtkActor *sphereActor = vtkActor::New();

  renWin->AddRenderer(ren);
  iren->SetRenderWindow(renWin);

  matrix = vtkMatrix4x4::New();
  matrix->Identity();
  matrix->SetElement(0, 0, cos(angle));
  matrix->SetElement(0, 1, -1.0 * sin(angle));
  matrix->SetElement(1, 0, sin(angle));
  matrix->SetElement(1, 1, cos(angle));

  light = vtkLight::New();
  light->SetLightTypeToSceneLight();
  light->SetIntensity(1.0);
  light->SetPosition(-1.0,0.0,0.0);
  light->SetFocalPoint(1.0,0.0,0.0);
  light->SetTransformMatrix(matrix);
  light->SwitchOn();
  ren->AddLight(light);

  ss->SetRadius(1.0);
  sMapper->SetInput(ss->GetOutput());
  sphereActor->SetMapper(sMapper);
  ren->AddActor(sphereActor);

  rotateCallback *rotate = rotateCallback::New();
  iren->AddObserver(vtkCommand::UserEvent, rotate);

  iren->Start();

}


_______________________________________________
This is the private VTK discussion list. 
Please keep messages on-topic. Check the FAQ at:
<http://public.kitware.com/cgi-bin/vtkfaq>
Follow this link to subscribe/unsubscribe:
http://www.vtk.org/mailman/listinfo/vtkusers



From gil at femplusplus.com  Tue Oct 26 04:35:00 2004
From: gil at femplusplus.com (Gil)
Date: Tue, 26 Oct 2004 10:35:00 +0200
Subject: [vtkusers] Problem upgrading from VTK3.1 (UG+Field)
References: <001e01c4bad6$c4240880$780aa8c0@JUPITER>
	<6.1.2.0.2.20041025171825.03ce61b0@pop.biz.rr.com>
Message-ID: <003801c4bb36$b413a170$780aa8c0@JUPITER>

Hi Amy,

When I DeepCopy the displacements array from the field, 
vtkFieldDataToAttributeDataFilter tells me :
"ERROR: In 
C:\martink\vtk42\VTK\Graphics\vtkFieldDataToAttributeDataFilter.cxx, line 
477
vtkFieldDataToAttributeDataFilter (0x00619AD0): Can't find array requested"
Any Idea?
Thanks,
Gil
---
----- Original Message ----- 
From: "Amy Henderson" <amy.henderson at kitware.com>
To: "Gil at FEMplusplus.com" <gil at femplusplus.com>; "vtkusers" 
<vtkusers at vtk.org>
Sent: Monday, October 25, 2004 11:26 PM
Subject: Re: [vtkusers] Problem upgrading from VTK3.1 (UG+Field)


> Hi Gil,
>
> Maybe you've seen this already, this section of the VTK FAQ (now in the 
> VTK wiki) should be of help to you: 
> http://www.vtk.org/Wiki/VTK_FAQ#Changes_in_VTK_between_3.2_and_4.0. In VTK 
> 4.2, vtkPointData is a subclass of vtkFieldData. The SetFieldData method 
> has been removed. Try using ShallowCopy or DeepCopy instead.
>
> - Amy
>
> At 05:08 PM 10/25/2004, Gil at FEMplusplus.com wrote:
>>Hi,
>>When upgrading an old application from VTK3.1 to VTK4.2 I get the 
>>following error:
>>"...could not find the requested method: SetFieldData...  while executing 
>>[[Ureader GetOutput] GetPointData] SetFieldData $f"
>>What the program tries to do is to read an Unstructured grid and its 
>>results field from different files, and display the deformed grid (and 
>>eventually other results).
>>
>>Searching the lists, I know that there have been many changes in the 
>>FieldData area, but couldn't figure how to change the code.
>>A simplified tcl file+data files are attached.
>>
>>Can anyone help?
>>Thanks,
>>Gil
>>
>>Email: <mailto:gil at femplusplus.com>gil at femplusplus.com
>>---
>>
>>
>>
>>_______________________________________________
>>This is the private VTK discussion list.
>>Please keep messages on-topic. Check the FAQ at: 
>><http://public.kitware.com/cgi-bin/vtkfaq>
>>Follow this link to subscribe/unsubscribe:
>>http://www.vtk.org/mailman/listinfo/vtkusers
>
>
> 
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From julien.celle at atlas.cermep.fr  Tue Oct 26 04:41:00 2004
From: julien.celle at atlas.cermep.fr (Julien CELLE)
Date: Tue, 26 Oct 2004 10:41:00 +0200
Subject: [vtkusers] vtkImageAnisotropicDiffusion3D Problem.
Message-ID: <417E0D9C.8030507@cermep.fr>

Hi,

I am currently developping  medical apps in VTK and Python.
I have a problem with 'vtkImageAnisotropicDiffusion3D'. When I load more 
than
50Mo of image data I have an error occuring.
This is the very first opeartion of my program (except for image 
loading) and I don't
really understand why it is crashing (50Mo is really the low limit for us).
Could someone point me to some solution ?
Thanks,

Julien.

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From francesco.fassi at polimi.it  Tue Oct 26 05:46:33 2004
From: francesco.fassi at polimi.it (Ing. Francesco Fassi)
Date: Tue, 26 Oct 2004 11:46:33 +0200
Subject: [vtkusers] Postgraduate opportunity - Ricerca collaboratori per
	ricerca nazionale
Message-ID: <007501c4bb40$b0f4f0c0$65586bc0@toponefranzone>





Our department is involved in a very important research program which name is SIDART (Sistema Integrato per la Diagnostica dei beni ARTistici).
This project involve many partners such CETMA (CEntro di progettazione, design & Tecnologie dei MAteriali), ENEA (Ente Nazionale Energie Alternative) and INOA. The target is to create a big embedded system for the diagnostics of artistic works, that allow to acquire, elaborate and aggregate measures and survey to carry out  operations in the restoration and conservation sector.

In particular our interest is directed to study, elaborate and model point clouds and 3D laser scanned surfaces for architectural structures.

The final aim is to create a software to support a laser scanner prototype that is built inside the project. 

These are the most important points our interest.

-         Surface recognition 

-         Surface extraction

-         Points decimation

-         Breaklines definition and extraction

-         Advanced methods of mesh creation

-    Mesh surface to nurbs 

 

We are searching qualified programmers and post graduates 

that are interested to cooperate in the research project.

These people must have good knowledge in 3D programming

(C++, openGL, 3D libraries)

 


Please contact Prof. Carlo Monti or Prof.ssa Raffaella Brumana for more information

and send Curriculum Vitae to these Mail Address if interested.

carlo.monti at polimi.it

raffaella.brumana at polimi.it

Or reply to this message.



Work place is in Brindisi (Italy)

  

POLITECNICO DI MILANO

Dipartimento di Ingegneria Idraulica, Infrastrutture Viarie, Ambientale e Rilevamento-Sezione Rilevamento

P.zza Leonardo da Vinci, 32, 20133 MILANO - ITALY

Tel. +39 02 2399 6533 - Fax +39 02 2399 6550
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From bluehorse at digitus.cz  Tue Oct 26 07:58:25 2004
From: bluehorse at digitus.cz (Andreas Bednarek)
Date: Tue, 26 Oct 2004 13:58:25 +0200
Subject: [vtkusers] VTK good for games? 
References: <0e0901c4ba88$1e403720$a3c77252@ziho>
	<200410251805.i9PI5rc6011016@apollo.sr.unh.edu>
Message-ID: <005c01c4bb53$1e2f42f0$a3c77252@ziho>

> I would think it would be a very bad library for writing a real time
> game. VTK is meant for visualizing large datasets and is not really
> meant to be embedded in any sort of frame-based system -- filters are
> not built with the idea of incremental changes to their output.


Hi,

thanks for suggestions, seems that maybe the next time I'll have the 
opportunity to use VTK? ;-) Although I like its concept and there is lot of 
work done which I hoped would simplify reaching my goal.

>In an other way, if you are expert in OpenGL, you can re-implement some 
>rendering parts
>to have a best result (in terms of speed). In VTK, there is the "Factory" 
>to offer you the
>possibility to replace one or more components of VTK (and I think it might 
>be used to
>replace vtkActor, vtkMapper or vtkTexture objects).

Yes (great feature of free licensing), but I think that replacing the 
renderer and some 3D model parts means to write lot of a 3D engine, which is 
what I tried to avoid vith VTK ...

Huh..seems like I'm probably going to check my skills on writing my own 
engine :)

Thakns
A.B.




----- Original Message ----- 
From: "tom fogal" <tfogal at apollo.sr.unh.edu>
To: "Andreas Bednarek" <bluehorse at digitus.cz>
Sent: Monday, October 25, 2004 8:05 PM
Subject: Re: [vtkusers] VTK good for games?


> <0e0901c4ba88$1e403720$a3c77252 at ziho>"Andreas Bednarek" writes:
>>would anyone say, that using VTK for a 3D game engine is a good idea?
>>How is it with VTK's performance?
>
> I would think it would be a very bad library for writing a real time
> game. VTK is meant for visualizing large datasets and is not really
> meant to be embedded in any sort of frame-based system -- filters are
> not built with the idea of incremental changes to their output.
>
> I would recommend you look at Crystal Space or OGRE.
>
> -tom
>
>><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
>
> BTW, please avoid HTML posting, at least on mailing lists. In general
> it is a terrible idea but if you searched hard enough you might be able
> to find someone with a differing opinion. 



From jak4.scr at gmx.net  Tue Oct 26 09:11:53 2004
From: jak4.scr at gmx.net (=?ISO-8859-1?Q?=22Johannes_K=E4fer=22?=)
Date: Tue, 26 Oct 2004 15:11:53 +0200 (MEST)
Subject: [vtkusers] VTK good for games?
References: <005c01c4bb53$1e2f42f0$a3c77252@ziho>
Message-ID: <23281.1098796313@www43.gmx.net>

Hello,

maybe you have a look at Irrlicht at http://irrlicht.sourceforge.net/
It's a open source 3d rendering engine with games in mind. I never used it
so I can't comment on it but it made it to slashdot so maybe... See the
slashdot article and comments here:
http://developers.slashdot.org/article.pl?sid=04/09/18/1747257&tid=152&tid=156&tid=8

regards
  Johannes


> > I would think it would be a very bad library for writing a real time
> > game. VTK is meant for visualizing large datasets and is not really
> > meant to be embedded in any sort of frame-based system -- filters are
> > not built with the idea of incremental changes to their output.
> 
> 
> Hi,
> 
> thanks for suggestions, seems that maybe the next time I'll have the 
> opportunity to use VTK? ;-) Although I like its concept and there is lot
> of 
> work done which I hoped would simplify reaching my goal.
> 
> >In an other way, if you are expert in OpenGL, you can re-implement some 
> >rendering parts
> >to have a best result (in terms of speed). In VTK, there is the "Factory"
> >to offer you the
> >possibility to replace one or more components of VTK (and I think it
> might 
> >be used to
> >replace vtkActor, vtkMapper or vtkTexture objects).
> 
> Yes (great feature of free licensing), but I think that replacing the 
> renderer and some 3D model parts means to write lot of a 3D engine, which
> is 
> what I tried to avoid vith VTK ...
> 
> Huh..seems like I'm probably going to check my skills on writing my own 
> engine :)
> 
> Thakns
> A.B.
> 
> 
> 
> 
> ----- Original Message ----- 
> From: "tom fogal" <tfogal at apollo.sr.unh.edu>
> To: "Andreas Bednarek" <bluehorse at digitus.cz>
> Sent: Monday, October 25, 2004 8:05 PM
> Subject: Re: [vtkusers] VTK good for games?
> 
> 
> > <0e0901c4ba88$1e403720$a3c77252 at ziho>"Andreas Bednarek" writes:
> >>would anyone say, that using VTK for a 3D game engine is a good idea?
> >>How is it with VTK's performance?
> >
> > I would think it would be a very bad library for writing a real time
> > game. VTK is meant for visualizing large datasets and is not really
> > meant to be embedded in any sort of frame-based system -- filters are
> > not built with the idea of incremental changes to their output.
> >
> > I would recommend you look at Crystal Space or OGRE.
> >
> > -tom
> >
> >><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
> >
> > BTW, please avoid HTML posting, at least on mailing lists. In general
> > it is a terrible idea but if you searched hard enough you might be able
> > to find someone with a differing opinion. 
> 
> _______________________________________________
> This is the private VTK discussion list. 
> Please keep messages on-topic. Check the FAQ at:
> <http://public.kitware.com/cgi-bin/vtkfaq>
> Follow this link to subscribe/unsubscribe:
> http://www.vtk.org/mailman/listinfo/vtkusers
> 

-- 
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From amy.henderson at kitware.com  Tue Oct 26 09:33:32 2004
From: amy.henderson at kitware.com (Amy Henderson)
Date: Tue, 26 Oct 2004 09:33:32 -0400
Subject: [vtkusers] Problem upgrading from VTK3.1 (UG+Field)
In-Reply-To: <003801c4bb36$b413a170$780aa8c0@JUPITER>
References: <001e01c4bad6$c4240880$780aa8c0@JUPITER>
	<6.1.2.0.2.20041025171825.03ce61b0@pop.biz.rr.com>
	<003801c4bb36$b413a170$780aa8c0@JUPITER>
Message-ID: <6.1.2.0.2.20041026091914.03a5fa90@pop.biz.rr.com>

Hi Gil,

I don't think the vtkFieldDataToAttributeFilter is actually what you want 
to use; it is for moving arrays from field data to point or cell data 
within the same vtkDataSet. In your case, you have a vtkUnstructuredGrid 
and a separate vtkFieldData. Instead of


set numarray [$f0 GetNumberOfArrays]
for {set i 0} {$i < $numarray} {incr i} {
         if { [$f0 GetArrayName $i] == "DISPLACE" } {
                 set dispNumArray $i
         }
}

vtkDoubleArray Disp
         Disp DeepCopy [$f0 GetArray $dispNumArray]

vtkFieldDataToAttributeDataFilter resfd2ad2
         resfd2ad2 SetInput [Ureader GetOutput]
         resfd2ad2 SetInputFieldToPointDataField
         resfd2ad2 SetOutputAttributeDataToPointData
         resfd2ad2 SetVectorComponent 0 Disp 0
         resfd2ad2 SetVectorComponent 1 Disp 1
         resfd2ad2 SetVectorComponent 2 Disp 2

# un-deformed mesh
vtkGeometryFilter surf2
         surf2 SetInput [Ureader GetOutput]


try the following

vtkUnstructuredGrid uGrid
uGrid DeepCopy [UReader GetOutput]
[uGrid GetPointData] SetVectors [$f0 GetArray "DISPLACE"]  # This will work 
if you have an array named "DISPLACE".

vtkGeometryFilter surf2
surf2 SetInput $uGrid

- Amy

At 04:35 AM 10/26/2004, Gil wrote:
>Hi Amy,
>
>When I DeepCopy the displacements array from the field, 
>vtkFieldDataToAttributeDataFilter tells me :
>"ERROR: In 
>C:\martink\vtk42\VTK\Graphics\vtkFieldDataToAttributeDataFilter.cxx, line 477
>vtkFieldDataToAttributeDataFilter (0x00619AD0): Can't find array requested"
>Any Idea?
>Thanks,
>Gil
>---
>----- Original Message ----- From: "Amy Henderson" <amy.henderson at kitware.com>
>To: "Gil at FEMplusplus.com" <gil at femplusplus.com>; "vtkusers" 
><vtkusers at vtk.org>
>Sent: Monday, October 25, 2004 11:26 PM
>Subject: Re: [vtkusers] Problem upgrading from VTK3.1 (UG+Field)
>
>
>>Hi Gil,
>>
>>Maybe you've seen this already, this section of the VTK FAQ (now in the 
>>VTK wiki) should be of help to you: 
>>http://www.vtk.org/Wiki/VTK_FAQ#Changes_in_VTK_between_3.2_and_4.0. In 
>>VTK 4.2, vtkPointData is a subclass of vtkFieldData. The SetFieldData 
>>method has been removed. Try using ShallowCopy or DeepCopy instead.
>>
>>- Amy
>>
>>At 05:08 PM 10/25/2004, Gil at FEMplusplus.com wrote:
>>>Hi,
>>>When upgrading an old application from VTK3.1 to VTK4.2 I get the 
>>>following error:
>>>"...could not find the requested method: SetFieldData...  while 
>>>executing [[Ureader GetOutput] GetPointData] SetFieldData $f"
>>>What the program tries to do is to read an Unstructured grid and its 
>>>results field from different files, and display the deformed grid (and 
>>>eventually other results).
>>>
>>>Searching the lists, I know that there have been many changes in the 
>>>FieldData area, but couldn't figure how to change the code.
>>>A simplified tcl file+data files are attached.
>>>
>>>Can anyone help?
>>>Thanks,
>>>Gil
>>>
>>>Email: <mailto:gil at femplusplus.com>gil at femplusplus.com
>>>---
>>>
>>>
>>>
>>>_______________________________________________
>>>This is the private VTK discussion list.
>>>Please keep messages on-topic. Check the FAQ at: 
>>><http://public.kitware.com/cgi-bin/vtkfaq>
>>>Follow this link to subscribe/unsubscribe:
>>>http://www.vtk.org/mailman/listinfo/vtkusers
>>
>>
>
>
>
>_______________________________________________
>This is the private VTK discussion list.
>Please keep messages on-topic. Check the FAQ at: 
><http://public.kitware.com/cgi-bin/vtkfaq>
>Follow this link to subscribe/unsubscribe:
>http://www.vtk.org/mailman/listinfo/vtkusers





From sscomp2004 at yahoo.com.au  Tue Oct 26 10:01:56 2004
From: sscomp2004 at yahoo.com.au (s comp)
Date: Wed, 27 Oct 2004 00:01:56 +1000 (EST)
Subject: [vtkusers] how to export image of current render window?
Message-ID: <20041026140156.30133.qmail@web61101.mail.yahoo.com>

How to export image of current render window?
 
(Apart from screen capture)
 
I tried using vtkWindowToImageFilter, and calling it from the vtk interactor window but this only showed the initial view, not the current one.
 
Thanks,
 
Sonam



---------------------------------
Find local movie times and trailers on Yahoo! Movies.
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From mathieu.malaterre at kitware.com  Tue Oct 26 10:27:22 2004
From: mathieu.malaterre at kitware.com (Mathieu Malaterre)
Date: Tue, 26 Oct 2004 10:27:22 -0400
Subject: [vtkusers] VTK good for games?
In-Reply-To: <005c01c4bb53$1e2f42f0$a3c77252@ziho>
References: <0e0901c4ba88$1e403720$a3c77252@ziho>	<200410251805.i9PI5rc6011016@apollo.sr.unh.edu>
	<005c01c4bb53$1e2f42f0$a3c77252@ziho>
Message-ID: <417E5ECA.5020507@kitware.com>

Andreas Bednarek wrote:
>> I would think it would be a very bad library for writing a real time
>> game. VTK is meant for visualizing large datasets and is not really
>> meant to be embedded in any sort of frame-based system -- filters are
>> not built with the idea of incremental changes to their output.
> 
> 
> 
> Hi,
> 
> thanks for suggestions, seems that maybe the next time I'll have the 
> opportunity to use VTK? ;-) Although I like its concept and there is lot 
> of work done which I hoped would simplify reaching my goal.
> 
>> In an other way, if you are expert in OpenGL, you can re-implement 
>> some rendering parts
>> to have a best result (in terms of speed). In VTK, there is the 
>> "Factory" to offer you the
>> possibility to replace one or more components of VTK (and I think it 
>> might be used to
>> replace vtkActor, vtkMapper or vtkTexture objects).
> 
> 
> Yes (great feature of free licensing), but I think that replacing the 
> renderer and some 3D model parts means to write lot of a 3D engine, 
> which is what I tried to avoid vith VTK ...
> 
> Huh..seems like I'm probably going to check my skills on writing my own 
> engine :)

Reinventing the wheel again and again...
You should really read slashdot / freshmeat  about new stuff in the 
linux world. For instance:

http://home.gna.org/oomadness/en/slune/

It's a 3D game written in python ! It uses Soya3D for the 3D engine

HTH
Mathieu




From philippe.verney at laposte.net  Tue Oct 26 13:12:59 2004
From: philippe.verney at laposte.net (philippe.verney)
Date: Tue, 26 Oct 2004 19:12:59 +0200
Subject: [vtkusers] Embed vtkRenderWindow into a wxPythonFrame
Message-ID: <I67BTN$B2C14CDA7EA5351744A5AFC4919EDDE4@laposte.net>

Hi,

Does someone know how to embed a vtkRenderWindow into a
wxFrame under Linux ?
I have no problem to do that on Microsoft Windows XP using
this code :

self.renWin3D = vtk.vtkRenderWindow()
self.renWin3D.SetParentInfo( str( self.panel1.GetHandle() ) )

It works very well on MS Windows : VTK windows is embeded and
I can use interactor very easily...
I'd really like to do the same on Linux...

Furthermore, I can't use AddObserver command on my
vtkRenderWindow() on Linux : it doesn't work.. I only can use
AddObserver with my vtkRenderWindowInteractor...

I have already seen messages about this problem but no answer
: is there any???

Regards
Philippe

Acc?dez au courrier ?lectronique de La Poste : www.laposte.net ; 
3615 LAPOSTENET (0,34?/mn) ; t?l : 08 92 68 13 50 (0,34?/mn)





From raman_nagarajan at vsnl.net  Tue Oct 26 13:19:00 2004
From: raman_nagarajan at vsnl.net (Nagarajan)
Date: Tue, 26 Oct 2004 22:49:00 +0530
Subject: [vtkusers] Nuclear Medicine
Message-ID: <000c01c4bb7f$e34e80b0$5a02a8c0@MAINDEV>

Hello,
Is there any vtk application to nuclear medicine?.

Nagarajan
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From mathieu.malaterre at kitware.com  Tue Oct 26 13:25:42 2004
From: mathieu.malaterre at kitware.com (Mathieu Malaterre)
Date: Tue, 26 Oct 2004 13:25:42 -0400
Subject: [vtkusers] Embed vtkRenderWindow into a wxPythonFrame
In-Reply-To: <I67BTN$B2C14CDA7EA5351744A5AFC4919EDDE4@laposte.net>
References: <I67BTN$B2C14CDA7EA5351744A5AFC4919EDDE4@laposte.net>
Message-ID: <417E8896.3000803@kitware.com>

Philippe,

	This should work. I believe the wxWidgets guys recently change the 
behavior in one direction or the other, so the GetHandle is now 
returning a pointer to a gtk window, which VTK doesn't understand. What 
you really need is the X window behind the gtk pointer.

	I'd suggest you ask your question to wxPython user list, about the 
change in GetHandle, and depending on their anwers switch either to a 
newer or older version of the lib.

HTH
Mathieu


philippe.verney wrote:
> Hi,
> 
> Does someone know how to embed a vtkRenderWindow into a
> wxFrame under Linux ?
> I have no problem to do that on Microsoft Windows XP using
> this code :
> 
> self.renWin3D = vtk.vtkRenderWindow()
> self.renWin3D.SetParentInfo( str( self.panel1.GetHandle() ) )
> 
> It works very well on MS Windows : VTK windows is embeded and
> I can use interactor very easily...
> I'd really like to do the same on Linux...
> 
> Furthermore, I can't use AddObserver command on my
> vtkRenderWindow() on Linux : it doesn't work.. I only can use
> AddObserver with my vtkRenderWindowInteractor...
> 
> I have already seen messages about this problem but no answer
> : is there any???
> 
> Regards
> Philippe
> 
> Acc?dez au courrier ?lectronique de La Poste : www.laposte.net ; 
> 3615 LAPOSTENET (0,34?/mn) ; t?l : 08 92 68 13 50 (0,34?/mn)
> 
> 
> 
> _______________________________________________
> This is the private VTK discussion list. 
> Please keep messages on-topic. Check the FAQ at: <http://public.kitware.com/cgi-bin/vtkfaq>
> Follow this link to subscribe/unsubscribe:
> http://www.vtk.org/mailman/listinfo/vtkusers
> 





From bryan.cole at teraview.com  Tue Oct 26 13:34:11 2004
From: bryan.cole at teraview.com (Bryan Cole)
Date: Tue, 26 Oct 2004 18:34:11 +0100
Subject: [vtkusers] Re: Embed vtkRenderWindow into a wxPythonFrame
References: <I67BTN$B2C14CDA7EA5351744A5AFC4919EDDE4@laposte.net>
Message-ID: <pan.2004.10.26.17.34.07.712807@teraview.com>

On Tue, 26 Oct 2004 19:12:59 +0200, philippe.verney wrote:

> Hi,
> 
> Does someone know how to embed a vtkRenderWindow into a
> wxFrame under Linux ?

The 'wxVTKRenderWindowInteractor' class from 
module vtk.wx.wxVTKRenderWindowInteractor seems to work on both wxMSW
and wxGTK. This class actually subclasses wxWindow. It contains an
instance of vtkGenericRenderWindowInteractor which can be used to trigger
VTK event.


> 
> Furthermore, I can't use AddObserver command on my
> vtkRenderWindow() on Linux : it doesn't work.. I only can use
> AddObserver with my vtkRenderWindowInteractor...

Your using the wxWindows event system for events, so there's less need for
VTK events. You can trigger VTK events using the
vtkGenericRenderWindowInteractor mentioned about.


> 
> I have already seen messages about this problem but no answer
> : is there any???
> 
> Regards
> Philippe
> 
> Acc?dez au courrier ?lectronique de La Poste : www.laposte.net ; 
> 3615 LAPOSTENET (0,34?/mn) ; t?l : 08 92 68 13 50 (0,34?/mn)
> 
> 
> 
> _______________________________________________
> This is the private VTK discussion list. 
> Please keep messages on-topic. Check the FAQ at: <http://public.kitware.com/cgi-bin/vtkfaq>
> Follow this link to subscribe/unsubscribe:
> http://www.vtk.org/mailman/listinfo/vtkusers




From lost_bits1110 at hotmail.com  Tue Oct 26 14:11:41 2004
From: lost_bits1110 at hotmail.com (Louis Desjardins)
Date: Tue, 26 Oct 2004 18:11:41 +0000
Subject: [vtkusers] trackball interface
Message-ID: <BAY16-F17XWb9DYccSN000117b4@hotmail.com>

Hello,

Does anyone have a trackball interface already made?  I have a Logitech 
trackball which I need to incorporate in my application (not as a pointing 
device, but moreso to control how my image changes as the trackball is moved 
up down or left right)
If there's one already implemented this would save me a great deal of 
time..!
Thank you
LD

_________________________________________________________________
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From stefano.perticoni at virgilio.it  Tue Oct 26 14:28:41 2004
From: stefano.perticoni at virgilio.it (stefano perticoni)
Date: Tue, 26 Oct 2004 20:28:41 +0200
Subject: [vtkusers] vtkQuadraticTetra cell data displaying bug in vtk 4.2.1
Message-ID: <4170117200502AC5@vsmtp3.tin.it> (added by postmaster@virgilio.it)

Dear vtkusers,

 

I'm posting again the question about cell data visualization in meshes made
of vtkQuadraticTetra since there were some errors in test data formatting of
my last post.

I'm using vtk 4.2.1 stable distribution and displaying cell data for meshes
made of parabolic tetra is crashing the application while displaying point
data is ok as you can see in attached image. 

You can find some files attached:

 

#--------------------------------------------------------

# Test program for displaying the mesh:

#--------------------------------------------------------

testVtkQuadTetra.tcl

 

 if you comment the point data visualization part and uncomment the cell
data section the application is 

crashing:

 

#--------------------------------------------------------

# Test data for the test program: 

#--------------------------------------------------------

2vtkQuadTetraWPDandCD.vtk

 

This is a vtkUnstructuredGrid made of 2 parabolic tetra with associated
point data and cell data.

 

Regards,

Stefano 

 

 

 

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From Christopher.Moore at noaa.gov  Tue Oct 26 14:43:07 2004
From: Christopher.Moore at noaa.gov (Christopher.Moore at noaa.gov)
Date: Tue, 26 Oct 2004 11:43:07 -0700 (PDT)
Subject: [vtkusers] matrix rotation "jumps"
In-Reply-To: <200410260224.i9Q2Oa9b015606@lorica.ucc.usyd.edu.au>
Message-ID: <Pine.LNX.4.44.0410261138130.23129-100000@kingfisher.pmel.noaa.gov>


I found the problem with my matrix multiplication (after much gnashing of 
teeth):

I accidentally set the focal point of the light to (1,0,0) instead of 
(0,0,0), so when the light's _position_ came around the circle to (1,0,0) 
it was understandably confused.

Operator error: my apologies.

Thanks for all the help - you guys are great.

Chris

On Tue, 26 Oct 2004, Andrew Maclean wrote:

> What you are seeing is probably correct behavior. I suspect you are
> experiencing the dreaded "gimbal-lock".
> 
> for a solution, look at:
> "Real-Time Rendering"; T. Akenine-M?ller, Eric Haines; 2ndEdn, A.K.Peters
> Ltd.
> In particular 3.3.2 Quaternions, Rotation from one vector to another. 
> 
> This may give you a way of doing it.   
> 
> -----Original Message-----
> From: Christopher.Moore at noaa.gov [mailto:Christopher.Moore at noaa.gov] 
> Sent: Tuesday, 26 October 2004 10:44
> To: vtkusers at vtk.org
> Subject: [vtkusers] matrix rotation "jumps"
> 
> ...
> 
> 
> 
> 



From ngonzalez at rcm.upr.edu  Tue Oct 26 14:47:17 2004
From: ngonzalez at rcm.upr.edu (Nathaniel Gonzalez)
Date: Tue, 26 Oct 2004 14:47:17 -0400
Subject: [vtkusers] The Visible Human project Display Script
Message-ID: <1098816437.5810.21.camel@linux.site>

I'm trying to display the anatomy images of the Human Visible Project.
I'm able to see the images using vtk, but I'm unable to load the images
in a 3d volume form. If anyone has a simple script to do this I will
greatly appreciate your help. I'm also looking for a way to remove the
blue gel from the anatomy images. I think that I have to use the
vtkColorTransferFunction any hint on how to do this will be great.

This is what I have managed to do so far using examples, but I only get
a white outline in a volume form, the images are in ppm format:

package require vtk
package require vtkinteraction


vtkPNMReader part
     part SetFilePrefix"/VTK/VTKData/Male/Fullcolor/head/ppm/a_vm"
     part SetFilePattern %s%d.ppm
     part SetDataSpacing 0.33 0.33 1.0
     part SetDataExtent 0 2047 0 1215 1001 1050
     part SetDataByteOrderToBigEndian


#vtkVolume16Reader v16
#  v16 SetDataDimensions 2048 1216
#  [v16 GetOutput] SetOrigin 0.0 0.0 0.0
# v16 SetDataByteOrderToLittleEndian
#  v16 SetDataByteOrderToBigEndian
#  v16 SetFilePrefix "/home/VTK/VTKData/Male/Fullcolor/head/ppm/a_vm"
#  v16 SetFilePattern %s%d.ppm
#  v16 SetImageRange 1001 1050
# v16 SetImageRange 1 93
#  v16 SetDataSpacing .33 .33 1

vtkPiecewiseFunction tfun
  tfun AddPoint  0.0  0.0
  tfun AddPoint  127.5 0.8
  tfun AddPoint  255 0.0

vtkPiecewiseFunction white_tfun
  tfun AddPoint  0.0  1.0
  tfun AddPoint  255  1.0 
 

vtkVolumeProperty volumeProperty
  volumeProperty SetColor white_tfun
  volumeProperty SetScalarOpacity tfun
  volumeProperty SetInterpolationTypeToLinear
  volumeProperty ShadeOn


vtkVolumeRayCastCompositeFunction  compositeFunction

vtkVolumeRayCastMapper volumeMapper
  volumeMapper SetVolumeRayCastFunction compositeFunction
  volumeMapper SetInput [part GetOutput] 
  volumeMapper SetSampleDistance 1.0

vtkVolume newvol
  newvol SetMapper volumeMapper
  newvol SetProperty volumeProperty

 
vtkOutlineFilter outline
    outline SetInput [part GetOutput]
vtkPolyDataMapper outlineMapper
    outlineMapper SetInput [outline GetOutput]
vtkActor outlineActor
    outlineActor SetMapper outlineMapper



# Create the RenderWindow, Renderer and both Actors
#
vtkRenderer ren1
vtkRenderWindow renWin
    renWin AddRenderer ren1
vtkRenderWindowInteractor iren
    iren SetRenderWindow renWin

# The SetInteractor method is how 3D widgets are associated with the
render
# window interactor. Internally, SetInteractor sets up a bunch of
callbacks
# using the Command/Observer mechanism (AddObserver()).
vtkBoxWidget boxWidget
    boxWidget SetInteractor iren
    boxWidget SetPlaceFactor 1.0

# Add the actors to the renderer, set the background and size
#
ren1 AddActor outlineActor
ren1 AddVolume newvol

ren1 SetBackground 0 0 0
renWin SetSize 300 300

# Place the interactor initially. The output of the reader is used to
place
# the box widget.
#boxWidget SetInput [v16 GetOutput]
boxWidget SetInput [part GetOutput]
boxWidget PlaceWidget
boxWidget InsideOutOn
boxWidget AddObserver StartInteractionEvent StartInteraction
boxWidget AddObserver InteractionEvent ClipVolumeRender
boxWidget AddObserver EndInteractionEvent EndInteraction
set outlineProperty [boxWidget GetOutlineProperty]
    $outlineProperty SetRepresentationToWireframe
    $outlineProperty SetAmbient 1.0
    $outlineProperty SetAmbientColor 1 1 1
    $outlineProperty SetLineWidth 3
set selectedOutlineProperty [boxWidget GetSelectedOutlineProperty]
    $selectedOutlineProperty SetRepresentationToWireframe
    $selectedOutlineProperty SetAmbient 1.0
    $selectedOutlineProperty SetAmbientColor 1 0 0
    $selectedOutlineProperty SetLineWidth 3

# This adds the "u" keypress event...it pops up a Tcl interpreter.
#
iren AddObserver UserEvent {wm deiconify .vtkInteract}
iren Initialize

# Prevent the tk window from showing up then start the event loop.
wm withdraw .

# When interaction starts, the requested frame rate is increased.
proc StartInteraction {} {
   renWin SetDesiredUpdateRate 10
}

# When interaction ends, the requested frame rate is decreased to
# normal levels. This causes a full resolution render to occur.
proc EndInteraction {} {
   renWin SetDesiredUpdateRate 0.001
}

# The implicit function vtkPlanes is used in conjunction with the
# volume ray cast mapper to limit which portion of the volume is
# volume rendered.
vtkPlanes planes
proc ClipVolumeRender {} {
   boxWidget GetPlanes planes
   volumeMapper SetClippingPlanes planes
}


Thanks.


Nathaniel Gonzalez
RCMI-CIAR
Medical Science Campus
University of Puerto Rico  



From cowboy_ct2002 at yahoo.com.cn  Wed Oct 27 02:29:22 2004
From: cowboy_ct2002 at yahoo.com.cn (tao chen)
Date: Wed, 27 Oct 2004 14:29:22 +0800 (CST)
Subject: [vtkusers] Does VTK could work with Visual C++.Net
Message-ID: <20041027062922.80418.qmail@web15808.mail.cnb.yahoo.com>

HI All,
 I am new to VTK and I need help . I build a project as MFC exe, use Visual C++.Net together with VTK.  The error is :
c:\Program Files\vtk42\include\vtk\vtkIOStream.h(61) : fatal error C1083: Cannot open include file:?iostream.h?: No such file or directory. 
    Request help in this regard,thanks in advance

Daniel Chen



---------------------------------
Do You Yahoo!?
150??MP3????????????
???????????????????
1G??1000???????????
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From I.deBoer at polytec.de  Wed Oct 27 03:34:02 2004
From: I.deBoer at polytec.de (de Boer Ingo)
Date: Wed, 27 Oct 2004 09:34:02 +0200
Subject: [vtkusers] Does VTK could work with Visual C++.Net
Message-ID: <1484AEC8AB498A4EB64D4A8137D23FD901450077@02polywbr.waldbronn.polytec.de>

Hi,

use

VTK_USE_ANSI_STDLIB

as a VTK/compiler option.

greets
  Ingo

---
Dr.-Ing. Ingo H. de Boer

Polytec GmbH
Polytec-Platz 1-7, 76337 Waldbronn, Germany
phone: ++49 7243 604 106
fax  : ++49 7243 604 255
  

HI All,
 I am new to VTK and I need help . I build a project as MFC exe, use Visual C++.Net together with VTK.  The error is :
c:\Program Files\vtk42\include\vtk\vtkIOStream.h(61) : fatal error C1083: Cannot open include file:?iostream.h?: No such file or directory. 
    Request help in this regard,thanks in advance

Daniel Chen


From jdc at lnec.pt  Wed Oct 27 03:43:02 2004
From: jdc at lnec.pt (=?iso-8859-1?Q?Jo=E3o?= Cunha)
Date: Wed, 27 Oct 2004 08:43:02 +0100
Subject: [vtkusers] vtkQuadraticTetra cell data displaying bug in vtk 4.2.1
References: <4170117200502AC5@vsmtp3.tin.it> (added by postmaster@virgilio.it)
Message-ID: <417F5186.E7032D01@lnec.pt>

I got into similar trouble dealing with a data file including quadratic
hexahedrons some time ago and the suggestion from Mathieu Malaterre was
to use VTK from CVS.
I've not tried that yet hoping that version 5 will solve the problem.
May be the same problem exists with quadratic tetrahedrons.
Jo?o Cunha

stefano perticoni wrote:

> Dear vtkusers,
>
> I?m posting again the question about cell data visualization in meshes
> made of vtkQuadraticTetra since there were some errors in test data
> formatting of my last post.
>
> I?m using vtk 4.2.1 stable distribution and displaying cell data for
> meshes made of parabolic tetra is crashing the application while
> displaying point data is ok as you can see in attached image.
>
> You can find some files attached:
>
> #--------------------------------------------------------
>
> # Test program for displaying the mesh:
>
> #--------------------------------------------------------
>
> testVtkQuadTetra.tcl
>
> if you comment the point data visualization part and uncomment the
> cell data section the application is
>
> crashing:
>
> #--------------------------------------------------------
>
> # Test data for the test program:
>
> #--------------------------------------------------------
>
> 2vtkQuadTetraWPDandCD.vtk
>
> This is a vtkUnstructuredGrid made of 2 parabolic tetra with
> associated point data and cell data.
>
> Regards,
>
> Stefano
>
>    ----------------------------------------------------------------
> _______________________________________________
> This is the private VTK discussion list.
> Please keep messages on-topic. Check the FAQ at: <http://public.kitware.com/cgi-bin/vtkfaq>
> Follow this link to subscribe/unsubscribe:
> http://www.vtk.org/mailman/listinfo/vtkusers
>
--
Jo?o Duarte Cunha
Investigador-Coordenador
Director do Centro da Qualidade na Constru??o
jdc at lnec.pt

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From jcplatt at lineone.net  Wed Oct 27 06:30:40 2004
From: jcplatt at lineone.net (John Platt)
Date: Wed, 27 Oct 2004 11:30:40 +0100
Subject: [vtkusers] vtkQuadraticTetra cell data displaying bug in vtk 4.2.1
In-Reply-To: <4170117200502AC5@vsmtp3.tin.it> (added by postmaster@virgilio.it)
Message-ID: <000001c4bc10$025e0030$32482850@pacsys4>

Hi Sefano,

 

Colour mapping of point and cell data on 2 quadratic tetrahedrons is ok
in version 4.5. You will have problems with quadratic cells in version
4.2.

 

John

 

-----Original Message-----
From: vtkusers-bounces at vtk.org [mailto:vtkusers-bounces at vtk.org] On
Behalf Of stefano perticoni
Sent: 26 October 2004 19:29
To: vtkusers at vtk.org
Subject: [vtkusers] vtkQuadraticTetra cell data displaying bug in vtk
4.2.1

 

Dear vtkusers,

 

I'm posting again the question about cell data visualization in meshes
made of vtkQuadraticTetra since there were some errors in test data
formatting of my last post.

I'm using vtk 4.2.1 stable distribution and displaying cell data for
meshes made of parabolic tetra is crashing the application while
displaying point data is ok as you can see in attached image. 

You can find some files attached:

 

#--------------------------------------------------------

# Test program for displaying the mesh:

#--------------------------------------------------------

testVtkQuadTetra.tcl

 

 if you comment the point data visualization part and uncomment the cell
data section the application is 

crashing:

 

#--------------------------------------------------------

# Test data for the test program: 

#--------------------------------------------------------

2vtkQuadTetraWPDandCD.vtk

 

This is a vtkUnstructuredGrid made of 2 parabolic tetra with associated
point data and cell data.

 

Regards,

Stefano 

 

 

 

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From brad.king at kitware.com  Wed Oct 27 06:49:41 2004
From: brad.king at kitware.com (Brad King)
Date: Wed, 27 Oct 2004 06:49:41 -0400
Subject: [vtkusers] Does VTK could work with Visual C++.Net
In-Reply-To: <20041027062922.80418.qmail@web15808.mail.cnb.yahoo.com>
References: <20041027062922.80418.qmail@web15808.mail.cnb.yahoo.com>
Message-ID: <417F7D45.3090902@kitware.com>

tao chen wrote:
> HI All,
>  I am new to VTK and I need help . I build a project as MFC exe, use 
> Visual C++.Net together with VTK.  The error is :
> c:\Program Files\vtk42\include\vtk\vtkIOStream.h(61) : fatal error 
> C1083: Cannot open include file:?iostream.h?: No such file or directory.
>     Request help in this regard,thanks in advance

It looks like you are using the pre-compiled binaries.  These were built
with Visual Studio 6 and therefore will not work with .NET.  You may
however download the source and built it with .NET yourself and then it
will work.

-Brad


From massimo.ivani at mlsw.com  Sat Oct 30 08:30:09 2004
From: massimo.ivani at mlsw.com (Massimo Ivani)
Date: Sat, 30 Oct 2004 14:30:09 +0200
Subject: [vtkusers] RayCast, MIP and Plane
Message-ID: <3hc759$pr388@mail-r2.cs.interbusiness.it>

Hello vtk Users,
 
I'm working with vtk 4.0 with CT images and using RayCasy or MIP functions
to create Volume Models. All is working well but if I add a plane or a
sphere to the scene using a texture on them, for example a bone texture of
cut plane, I get strange results when I rotate the model: cut plane
disappears, cut plane change dimension and so on. All is ok if I add a plane
to the scene with no texture on it. May be that is a bug of vtk 4.0???
 
Thank you for your help. 
 
Dr. Massimo Ivani
Media Lab Software
Ph. (+39) 0187517775
Fax (+39) 0187511833
 <mailto:massimo.ivani at mlsw.com> massimo.ivani at mlsw.com
 <http://www.mlsw.com> www.mlsw.com
 <http://www.implant3d.com> www.implant3d.com
 
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From gil at femplusplus.com  Wed Oct 27 10:02:18 2004
From: gil at femplusplus.com (Gil)
Date: Wed, 27 Oct 2004 16:02:18 +0200
Subject: [vtkusers] Read dual fileusing tcl (was: Problem upgrading from
	VTK3.1 (UG+Field))
References: <001e01c4bad6$c4240880$780aa8c0@JUPITER><6.1.2.0.2.20041025171825.03ce61b0@pop.biz.rr.com><003801c4bb36$b413a170$780aa8c0@JUPITER>
	<6.1.2.0.2.20041026091914.03a5fa90@pop.biz.rr.com>
Message-ID: <015f01c4bc2d$9412d970$780aa8c0@JUPITER>

Hi Amy,
Thanks a lot for your help - it really did the magic!

Just for the records and the sake of other users, I'm attaching the 
corrected example files. It might be helpful for other users.

Gil 
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From l.a.pereira at uol.com.br  Wed Oct 27 10:32:03 2004
From: l.a.pereira at uol.com.br (Luis Alberto Pereira)
Date: Wed, 27 Oct 2004 11:32:03 -0300
Subject: [vtkusers] vtk application on Document/View (MDI) pattern.
Message-ID: <20041027142945.D1A57A11C@scorpion3.uol.com.br>

 
Dears,
 
I?m using VC++ 2003 to construct my vtk application on Document/View (MDI)
pattern.
I?m using in Create event in CView class follow code:
 
BOOL C3DView::Create(LPCTSTR lpszClassName, LPCTSTR lpszWindowName, DWORD
dwStyle, const RECT& rect, CWnd* pParentWnd, UINT nID, CCreateContext*
pContext)
{
       // TODO: Add your specialized code here and/or call the base class
    this->renWin->AddRenderer(this->ren);
    this->renWin->SetParentId(this->m_hWnd);
    this->iren->SetRenderWindow(this->renWin);
              
    return CView::Create(lpszClassName, lpszWindowName, dwStyle, rect,
pParentWnd, nID, pContext);
}
 
And vtk render window is being created out of CchildFrame client area. It is
creating a separeted/duplicated render window of Cview in CchildFrame.
Can someone help me solve this problem ?
 
Thanks
 
Luis Alberto
55 11 8184 8444
55 11 3744 9965
l.a.pereira at uol.com.br
lapereira_br at hotmail.com
lalberto at stefanini.com.br <mailto:lalberto at steftanini.com.br> 
 
 
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From I.deBoer at polytec.de  Wed Oct 27 10:35:01 2004
From: I.deBoer at polytec.de (de Boer Ingo)
Date: Wed, 27 Oct 2004 16:35:01 +0200
Subject: [vtkusers] vtk application on Document/View (MDI) pattern.
Message-ID: <1484AEC8AB498A4EB64D4A8137D23FD90145007B@02polywbr.waldbronn.polytec.de>


Hi,

use

this->renWin->SetParentId(this->GetParent()->GetSafeHwnd());
this->renWin->SetWindowId(this->GetSafeHwnd());

instead of
this->renWin->SetParentId(this->m_hWnd);

greets
  Ingo


---
Dr.-Ing. Ingo H. de Boer

Polytec GmbH
Polytec-Platz 1-7, 76337 Waldbronn, Germany
phone: ++49 7243 604 106
fax  : ++49 7243 604 255
  
-----Original Message-----
 
Dears,
 
I'm using VC++ 2003 to construct my vtk application on Document/View (MDI) pattern.
I'm using in Create event in CView class follow code:
 
BOOL C3DView::Create(LPCTSTR lpszClassName, LPCTSTR lpszWindowName, DWORD dwStyle, const RECT& rect, CWnd* pParentWnd, UINT nID, CCreateContext* pContext)
{
       // TODO: Add your specialized code here and/or call the base class
    this->renWin->AddRenderer(this->ren);
    this->renWin->SetParentId(this->m_hWnd);
    this->iren->SetRenderWindow(this->renWin);
              
    return CView::Create(lpszClassName, lpszWindowName, dwStyle, rect, pParentWnd, nID, pContext);
}
 
And vtk render window is being created out of CchildFrame client area. It is creating a separeted/duplicated render window of Cview in CchildFrame.
Can someone help me solve this problem ?
 
Thanks
 
Luis Alberto
55 11 8184 8444
55 11 3744 9965
l.a.pereira at uol.com.br
lapereira_br at hotmail.com
lalberto at stefanini.com.br
 
 


From bogdan at to.adexa.com  Wed Oct 27 11:31:58 2004
From: bogdan at to.adexa.com (Bogdan Munteanu)
Date: Wed, 27 Oct 2004 11:31:58 -0400
Subject: [vtkusers] GUI resources access slowed down while using vtk
Message-ID: <000501c4bc3a$18ddca50$7c0aa8c0@adexainc.com>

Hi,

I am using vtk 4.2 in a C++ environment. The application I am working on
is an MDI-based program running on Windows XP with Service Pack 2 installed.

The hardware is decently good (1.5G of RAM, 128M video RAM, 1.7GHz
Centrino).

My MDI contains several views, one of which is based on the examples coming
with VTK.

Now comes the bad part: from time to time when the VTK view is brought up,
the system slows down significantly.

This is not due to the visualization pipeline ( I am rendering under 10
cubes, and the memory
consumption is under 200M for my application at that moment).

Moreover, the task manager doesn't show anything out of ordinary neither in
terms of CPU usage (under 6%!) nor of page faults.

Refreshing the other applications (.NET Studio, task manager) takes a lot
and one can see (literally) how the widgets of the other applications and
the icons on the desktop are refreshed one by one.

This situation continues even if I break my application in the debugger
(i.e., MY APPLICATION DOESN'T RUN). It looks like the access to the system's
GUI resources is being slowed down.

However, if I shut down the view, everything returns to normal.

Has anyone experienced anything similar?

I browsed the mailing list archive and the bug tracker: the only thing I
found was reported under the BUG #130.
However, even if the issue dealt with GUI resources, that case seemed to be
a combination of JVM and
VTK - Java wrappers, so it didn't help me much.

I really appreciate any help,

Cheers,
Bogdan




From jeff at cdnorthamerica.com  Wed Oct 27 11:37:46 2004
From: jeff at cdnorthamerica.com (Jeff Lee)
Date: Wed, 27 Oct 2004 11:37:46 -0400
Subject: [vtkusers] GUI resources access slowed down while using vtk
In-Reply-To: <000501c4bc3a$18ddca50$7c0aa8c0@adexainc.com>
References: <000501c4bc3a$18ddca50$7c0aa8c0@adexainc.com>
Message-ID: <417FC0CA.3080803@cdnorthamerica.com>



Bogdan Munteanu wrote:

>Hi,
>
>I am using vtk 4.2 in a C++ environment. The application I am working on
>is an MDI-based program running on Windows XP with Service Pack 2 installed.
>
>The hardware is decently good (1.5G of RAM, 128M video RAM, 1.7GHz
>Centrino).
>
>My MDI contains several views, one of which is based on the examples coming
>with VTK.
>
>Now comes the bad part: from time to time when the VTK view is brought up,
>the system slows down significantly.
>
>This is not due to the visualization pipeline ( I am rendering under 10
>cubes, and the memory
>consumption is under 200M for my application at that moment).
>
>Moreover, the task manager doesn't show anything out of ordinary neither in
>terms of CPU usage (under 6%!) nor of page faults.
>  
>
what about number of gdi objects?  does it increase as you interact with 
the scene?
-J

>Refreshing the other applications (.NET Studio, task manager) takes a lot
>and one can see (literally) how the widgets of the other applications and
>the icons on the desktop are refreshed one by one.
>
>This situation continues even if I break my application in the debugger
>(i.e., MY APPLICATION DOESN'T RUN). It looks like the access to the system's
>GUI resources is being slowed down.
>
>However, if I shut down the view, everything returns to normal.
>
>Has anyone experienced anything similar?
>
>I browsed the mailing list archive and the bug tracker: the only thing I
>found was reported under the BUG #130.
>However, even if the issue dealt with GUI resources, that case seemed to be
>a combination of JVM and
>VTK - Java wrappers, so it didn't help me much.
>
>I really appreciate any help,
>
>Cheers,
>Bogdan
>
>
>_______________________________________________
>This is the private VTK discussion list. 
>Please keep messages on-topic. Check the FAQ at: <http://public.kitware.com/cgi-bin/vtkfaq>
>Follow this link to subscribe/unsubscribe:
>http://www.vtk.org/mailman/listinfo/vtkusers
>
>
>  
>



From l.a.pereira at uol.com.br  Wed Oct 27 12:36:53 2004
From: l.a.pereira at uol.com.br (Luis Alberto Pereira)
Date: Wed, 27 Oct 2004 13:36:53 -0300
Subject: [vtkusers] RES: vtkusers Digest, Vol 6, Issue 57
In-Reply-To: <20041027160014.DE3EE2FD1D@public.kitware.com>
Message-ID: <20041027163420.3B93782AA@scorpion3.uol.com.br>

Hi Ingo, 

 

I followed your orientations and get this message: Debug Assertion failed
... Afxwin2.inl ... Line 282.

Then , if I press Ignore, the execution application continue with same
problem wich I related
 

BOOL CAnalitica3DBIView::Create(LPCTSTR lpszClassName, LPCTSTR
lpszWindowName, DWORD dwStyle, const RECT& rect, CWnd* pParentWnd, UINT nID,
CCreateContext* pContext)

{

       // TODO: Add your specialized code here and/or call the base class

    this->renWin->AddRenderer(this->ren);

       this->renWin->SetParentId(this->GetParent()->GetSafeHwnd());

    this->renWin->SetWindowId(this->GetSafeHwnd());

       this->iren->SetRenderWindow(this->renWin);

              

       return CView::Create(lpszClassName, lpszWindowName, dwStyle, rect,
pParentWnd, nID, pContext);

}


Luis Alberto
55 11 8184 8444
55 11 3744 9965
l.a.pereira at uol.com.br
lapereira_br at hotmail.com
lalberto at stefanini.com.br
 

-----Mensagem original-----
De: vtkusers-bounces at vtk.org [mailto:vtkusers-bounces at vtk.org] Em nome de
vtkusers-request at vtk.org
Enviada em: quarta-feira, 27 de outubro de 2004 13:00
Para: vtkusers at vtk.org
Assunto: vtkusers Digest, Vol 6, Issue 57

Send vtkusers mailing list submissions to
	vtkusers at vtk.org

To subscribe or unsubscribe via the World Wide Web, visit
	http://www.vtk.org/mailman/listinfo/vtkusers
or, via email, send a message with subject or body 'help' to
	vtkusers-request at vtk.org

You can reach the person managing the list at
	vtkusers-owner at vtk.org

When replying, please edit your Subject line so it is more specific
than "Re: Contents of vtkusers digest..."


Today's Topics:

   1. RE: vtk application on Document/View (MDI) pattern. (de Boer Ingo)
   2. GUI resources access slowed down while using vtk (Bogdan Munteanu)
   3. Re: GUI resources access slowed down while using vtk (Jeff Lee)


----------------------------------------------------------------------

Message: 1
Date: Wed, 27 Oct 2004 16:35:01 +0200
From: "de Boer Ingo" <I.deBoer at polytec.de>
Subject: RE: [vtkusers] vtk application on Document/View (MDI)
	pattern.
To: "Luis Alberto Pereira" <l.a.pereira at uol.com.br>,
	<vtkusers at vtk.org>
Message-ID:
	
<1484AEC8AB498A4EB64D4A8137D23FD90145007B at 02polywbr.waldbronn.polytec.de>
	
Content-Type: text/plain;	charset="iso-8859-1"


Hi,

use

this->renWin->SetParentId(this->GetParent()->GetSafeHwnd());
this->renWin->SetWindowId(this->GetSafeHwnd());

instead of
this->renWin->SetParentId(this->m_hWnd);

greets
  Ingo


---
Dr.-Ing. Ingo H. de Boer

Polytec GmbH
Polytec-Platz 1-7, 76337 Waldbronn, Germany
phone: ++49 7243 604 106
fax  : ++49 7243 604 255
  
-----Original Message-----
 
Dears,
 
I'm using VC++ 2003 to construct my vtk application on Document/View (MDI)
pattern.
I'm using in Create event in CView class follow code:
 
BOOL C3DView::Create(LPCTSTR lpszClassName, LPCTSTR lpszWindowName, DWORD
dwStyle, const RECT& rect, CWnd* pParentWnd, UINT nID, CCreateContext*
pContext)
{
       // TODO: Add your specialized code here and/or call the base class
    this->renWin->AddRenderer(this->ren);
    this->renWin->SetParentId(this->m_hWnd);
    this->iren->SetRenderWindow(this->renWin);
              
    return CView::Create(lpszClassName, lpszWindowName, dwStyle, rect,
pParentWnd, nID, pContext);
}
 
And vtk render window is being created out of CchildFrame client area. It is
creating a separeted/duplicated render window of Cview in CchildFrame.
Can someone help me solve this problem ?
 
Thanks
 
Luis Alberto
55 11 8184 8444
55 11 3744 9965
l.a.pereira at uol.com.br
lapereira_br at hotmail.com
lalberto at stefanini.com.br
 
 


------------------------------

Message: 2
Date: Wed, 27 Oct 2004 11:31:58 -0400
From: "Bogdan Munteanu" <bogdan at to.adexa.com>
Subject: [vtkusers] GUI resources access slowed down while using vtk
To: <vtkusers at vtk.org>
Message-ID: <000501c4bc3a$18ddca50$7c0aa8c0 at adexainc.com>
Content-Type: text/plain;	charset="iso-8859-1"

Hi,

I am using vtk 4.2 in a C++ environment. The application I am working on
is an MDI-based program running on Windows XP with Service Pack 2 installed.

The hardware is decently good (1.5G of RAM, 128M video RAM, 1.7GHz
Centrino).

My MDI contains several views, one of which is based on the examples coming
with VTK.

Now comes the bad part: from time to time when the VTK view is brought up,
the system slows down significantly.

This is not due to the visualization pipeline ( I am rendering under 10
cubes, and the memory
consumption is under 200M for my application at that moment).

Moreover, the task manager doesn't show anything out of ordinary neither in
terms of CPU usage (under 6%!) nor of page faults.

Refreshing the other applications (.NET Studio, task manager) takes a lot
and one can see (literally) how the widgets of the other applications and
the icons on the desktop are refreshed one by one.

This situation continues even if I break my application in the debugger
(i.e., MY APPLICATION DOESN'T RUN). It looks like the access to the system's
GUI resources is being slowed down.

However, if I shut down the view, everything returns to normal.

Has anyone experienced anything similar?

I browsed the mailing list archive and the bug tracker: the only thing I
found was reported under the BUG #130.
However, even if the issue dealt with GUI resources, that case seemed to be
a combination of JVM and
VTK - Java wrappers, so it didn't help me much.

I really appreciate any help,

Cheers,
Bogdan




------------------------------

Message: 3
Date: Wed, 27 Oct 2004 11:37:46 -0400
From: Jeff Lee <jeff at cdnorthamerica.com>
Subject: Re: [vtkusers] GUI resources access slowed down while using
	vtk
To: Bogdan Munteanu <bogdan at adexa.com>
Cc: vtkusers at vtk.org
Message-ID: <417FC0CA.3080803 at cdnorthamerica.com>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed



Bogdan Munteanu wrote:

>Hi,
>
>I am using vtk 4.2 in a C++ environment. The application I am working on
>is an MDI-based program running on Windows XP with Service Pack 2
installed.
>
>The hardware is decently good (1.5G of RAM, 128M video RAM, 1.7GHz
>Centrino).
>
>My MDI contains several views, one of which is based on the examples coming
>with VTK.
>
>Now comes the bad part: from time to time when the VTK view is brought up,
>the system slows down significantly.
>
>This is not due to the visualization pipeline ( I am rendering under 10
>cubes, and the memory
>consumption is under 200M for my application at that moment).
>
>Moreover, the task manager doesn't show anything out of ordinary neither in
>terms of CPU usage (under 6%!) nor of page faults.
>  
>
what about number of gdi objects?  does it increase as you interact with 
the scene?
-J

>Refreshing the other applications (.NET Studio, task manager) takes a lot
>and one can see (literally) how the widgets of the other applications and
>the icons on the desktop are refreshed one by one.
>
>This situation continues even if I break my application in the debugger
>(i.e., MY APPLICATION DOESN'T RUN). It looks like the access to the
system's
>GUI resources is being slowed down.
>
>However, if I shut down the view, everything returns to normal.
>
>Has anyone experienced anything similar?
>
>I browsed the mailing list archive and the bug tracker: the only thing I
>found was reported under the BUG #130.
>However, even if the issue dealt with GUI resources, that case seemed to be
>a combination of JVM and
>VTK - Java wrappers, so it didn't help me much.
>
>I really appreciate any help,
>
>Cheers,
>Bogdan
>
>
>_______________________________________________
>This is the private VTK discussion list. 
>Please keep messages on-topic. Check the FAQ at:
<http://public.kitware.com/cgi-bin/vtkfaq>
>Follow this link to subscribe/unsubscribe:
>http://www.vtk.org/mailman/listinfo/vtkusers
>
>
>  
>



------------------------------

_______________________________________________
vtkusers mailing list
vtkusers at vtk.org
http://www.vtk.org/mailman/listinfo/vtkusers


End of vtkusers Digest, Vol 6, Issue 57
***************************************



From Jared.Cohen at noaa.gov  Wed Oct 27 13:35:53 2004
From: Jared.Cohen at noaa.gov (Jared Cohen)
Date: Wed, 27 Oct 2004 13:35:53 -0400
Subject: [vtkusers] How to capture images from ONLY the RenderWindow?
Message-ID: <417FDC79.1000301@noaa.gov>

  Hi all. I'm part of a team that's building a large, multi-window GUI; 
one of the windows contains the VTK RenderWindow. We implemented a 
function to save the scene as a PNG, but there's a problem: if any of 
the other windows are in the way of the RenderWindow, they get 
incorporated into the resulting PNG snapshot! What I want to do is take 
a snapshot of ONLY the contents of the RenderWindow, regardless of 
whether or not there are other windows in front of the RenderWindow. Is 
there a way to do this?
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From Charles.Boivin at rwdiwest.com  Wed Oct 27 13:43:31 2004
From: Charles.Boivin at rwdiwest.com (Charles Boivin)
Date: Wed, 27 Oct 2004 11:43:31 -0600
Subject: [vtkusers] How to capture images from ONLY the
	RenderWindow?
Message-ID: <s17f89f5.020@mailwest.rwdiwest.com>

Hey Jared,

Have you tried using offscreen rendering? Something like this:

this->renWin->SetOffScreenRendering(1);

... take a snapshot of the render window here

this->renWin->SetOffScreenRendering(0);

I use this to output a series of snapshots (to later create an
animation) and it seems to work fine for me, although I do not have
multiple windows that overlap each other. 

Hope this helps,

Charles

>>> "Jared Cohen" <Jared.Cohen at noaa.gov> 10/27/04 11:35am >>>
  Hi all. I'm part of a team that's building a large, multi-window GUI;

one of the windows contains the VTK RenderWindow. We implemented a 
function to save the scene as a PNG, but there's a problem: if any of 
the other windows are in the way of the RenderWindow, they get 
incorporated into the resulting PNG snapshot! What I want to do is take

a snapshot of ONLY the contents of the RenderWindow, regardless of 
whether or not there are other windows in front of the RenderWindow. Is

there a way to do this?



From cbadke at gmail.com  Wed Oct 27 13:54:49 2004
From: cbadke at gmail.com (Curtis Badke)
Date: Wed, 27 Oct 2004 11:54:49 -0600
Subject: [vtkusers] SegFault with vtkPoints->SetNumberOfPoints
Message-ID: <1050bc8d041027105474a2d163@mail.gmail.com>

Good Day.

I am having problems with a recurring segFault when I call
SetNumberOfPoints on an instance of vtkPoints.  This problem does not
arise consistently which suggests to me that it is a memory problem.

I noticed in the documentation that SetNumberOfPoints does a memory
allocation so I wonder if perhaps there is a problem with an
allocation error.

Does anyone know in what conditions SetNumberOfPoints could cause a
segFault and whether or not there is something I could really do about
it?  Or perhaps there is an alternate function I could call that might
be safer but perform the same job?

Just so you know, I am trying to set the number of points to be ~600000.

Thanks.
Curtis

-- 
Light travels faster than sound. This is why some people appear bright
until you hear them speak.


From Jared.Cohen at noaa.gov  Wed Oct 27 14:14:07 2004
From: Jared.Cohen at noaa.gov (Jared Cohen)
Date: Wed, 27 Oct 2004 14:14:07 -0400
Subject: [vtkusers] How to capture images from ONLY the RenderWindow?
Message-ID: <417FE56F.1060809@noaa.gov>

  Ok, the first message didn't seem to get through to the mailing list, 
so I'll try this again :-)
------------------------------------------------------------------------------------------------------

Hi Charles, thanx for the quick reply! :-)

Yes, I tried offscreen rendering, but it didn't seem to make any 
difference at all. Do I need to enable this "MESA" thing before 
offscreen rendering will work?

Charles Boivin wrote:

>Hey Jared,
>
>Have you tried using offscreen rendering? Something like this:
>
>this->renWin->SetOffScreenRendering(1);
>
>... take a snapshot of the render window here
>
>this->renWin->SetOffScreenRendering(0);
>
>I use this to output a series of snapshots (to later create an
>animation) and it seems to work fine for me, although I do not have
>multiple windows that overlap each other. 
>
>Hope this helps,
>
>Charles
>
>  
>
>>>>"Jared Cohen" <Jared.Cohen at noaa.gov> 10/27/04 11:35am >>>
>>>>        
>>>>
>  Hi all. I'm part of a team that's building a large, multi-window GUI;
>
>one of the windows contains the VTK RenderWindow. We implemented a 
>function to save the scene as a PNG, but there's a problem: if any of 
>the other windows are in the way of the RenderWindow, they get 
>incorporated into the resulting PNG snapshot! What I want to do is take
>
>a snapshot of ONLY the contents of the RenderWindow, regardless of 
>whether or not there are other windows in front of the RenderWindow. Is
>
>there a way to do this?
>
>  
>
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From durusute at boun.edu.tr  Wed Oct 27 15:04:06 2004
From: durusute at boun.edu.tr (=?iso-8859-9?Q?Erhan_Durus=FCt?=)
Date: Wed, 27 Oct 2004 22:04:06 +0300
Subject: [vtkusers] ConnectPipelines
Message-ID: <005501c4bc57$bb76fad0$bcc38cc1@assos>

Hi,
 
I wonder if there is a generic connection between the itk and vtk
pipelines. I mean some export import functionality like it is available
for image data. I don't mean only to convert for example from itkMesh to
vtkUnstructuredGrid, but also the callbacks should be integrated so that
when I change some parameters of an itk filter that gives as output
itkMesh which is converted to vtkUnstructuredGrid to be processed in a
vtk pipeline, I should not work on converting data etc. and when I say
Render() to the vtkRenderWindow instance all the necessary updates
should be carried out. Is there a way to do that? Can anyone help or
suggest anything?
 
Thanks
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From Jared.Cohen at noaa.gov  Wed Oct 27 15:12:33 2004
From: Jared.Cohen at noaa.gov (Jared Cohen)
Date: Wed, 27 Oct 2004 15:12:33 -0400
Subject: [vtkusers] How to capture images from ONLY the	RenderWindow?
References: <s17f9c17.045@mailwest.rwdiwest.com>
Message-ID: <417FF321.5060305@noaa.gov>

Actually, I'm not using "Mesa"; I'm using a regular vtkRenderWindow. Do 
I need to use the Mesa version before offscreen rendering will work?

Charles Boivin wrote:

>Hi Jared,
>
>Hmmm.... I am running in the evil world of Microsoft, so I would not
>know anything about the MESA business. 
>
>Documentation says:
>
>virtual void vtkWindow::SetOffScreenRendering  	(int)   	
>[virtual]
>  	
>Create a window in memory instead of on the screen. This may not be
>supported for every type of window and on some windows you may need to
>invoke this prior to the first render.
>
>Reimplemented in vtkWin32OpenGLRenderWindow, vtkXMesaRenderWindow, and
>vtkXOpenGLRenderWindow. 
>
>I am assuming that you are running a vtkXMesaRenderWindow then... I
>must say that the last sentence (about invoking this before the first
>render) is a bit strange, as I am not too sure how this would work out.
>
>
>Sorry I could not be of more help...
>
>Charles
>
>  
>
>>>>"Jared Cohen" <Jared.Cohen at noaa.gov> 10/27/04 12:14pm >>>
>>>>        
>>>>
>Hi Charles, thanx for the quick reply! :-)
>
>Yes, I tried offscreen rendering, but it didn't seem to make any 
>difference at all. Do I need to enable this "MESA" thing before 
>offscreen rendering will work?
>
>Charles Boivin wrote:
>
>  
>
>>Hey Jared,
>>
>>Have you tried using offscreen rendering? Something like this:
>>
>>this->renWin->SetOffScreenRendering(1);
>>
>>... take a snapshot of the render window here
>>
>>this->renWin->SetOffScreenRendering(0);
>>
>>I use this to output a series of snapshots (to later create an
>>animation) and it seems to work fine for me, although I do not have
>>multiple windows that overlap each other. 
>>
>>Hope this helps,
>>
>>Charles
>>
>> 
>>
>>    
>>
>>>>>"Jared Cohen" <Jared.Cohen at noaa.gov> 10/27/04 11:35am >>>
>>>>>       
>>>>>
>>>>>          
>>>>>
>> Hi all. I'm part of a team that's building a large, multi-window
>>    
>>
>GUI;
>  
>
>>one of the windows contains the VTK RenderWindow. We implemented a 
>>function to save the scene as a PNG, but there's a problem: if any of
>>    
>>
>
>  
>
>>the other windows are in the way of the RenderWindow, they get 
>>incorporated into the resulting PNG snapshot! What I want to do is
>>    
>>
>take
>  
>
>>a snapshot of ONLY the contents of the RenderWindow, regardless of 
>>whether or not there are other windows in front of the RenderWindow.
>>    
>>
>Is
>  
>
>>there a way to do this?
>>
>> 
>>
>>    
>>
>
>  
>

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From Charles.Boivin at rwdiwest.com  Wed Oct 27 15:23:18 2004
From: Charles.Boivin at rwdiwest.com (Charles Boivin)
Date: Wed, 27 Oct 2004 13:23:18 -0600
Subject: [vtkusers] How to capture images from ONLY
	the	RenderWindow?
Message-ID: <s17fa166.056@mailwest.rwdiwest.com>

I believe vtkRenderWindow ends up instantiating something like a
vtkXMesaRenderWindow in the end (or whatever is more appropriate -- on
Windows, it ends up instantiating a vtkWin32OpenGLRenderWindow). 

I am relatively new to VTK, and have never used it under anything else
than Windows, so that is about as far as I know, unfortunately.
Hopefully people with more Linux/Unix experience will be able to help
here...

Good luck,

Charles

>>> "Jared Cohen" <Jared.Cohen at noaa.gov> 10/27/04 01:12pm >>>
Actually, I'm not using "Mesa"; I'm using a regular vtkRenderWindow. Do

I need to use the Mesa version before offscreen rendering will work?

Charles Boivin wrote:

>Hi Jared,
>
>Hmmm.... I am running in the evil world of Microsoft, so I would not
>know anything about the MESA business. 
>
>Documentation says:
>
>virtual void vtkWindow::SetOffScreenRendering  	(int)  
	
>[virtual]
>  	
>Create a window in memory instead of on the screen. This may not be
>supported for every type of window and on some windows you may need
to
>invoke this prior to the first render.
>
>Reimplemented in vtkWin32OpenGLRenderWindow, vtkXMesaRenderWindow,
and
>vtkXOpenGLRenderWindow. 
>
>I am assuming that you are running a vtkXMesaRenderWindow then... I
>must say that the last sentence (about invoking this before the first
>render) is a bit strange, as I am not too sure how this would work
out.
>
>
>Sorry I could not be of more help...
>
>Charles
>
>  
>
>>>>"Jared Cohen" <Jared.Cohen at noaa.gov> 10/27/04 12:14pm >>>
>>>>        
>>>>
>Hi Charles, thanx for the quick reply! :-)
>
>Yes, I tried offscreen rendering, but it didn't seem to make any 
>difference at all. Do I need to enable this "MESA" thing before 
>offscreen rendering will work?
>
>Charles Boivin wrote:
>
>  
>
>>Hey Jared,
>>
>>Have you tried using offscreen rendering? Something like this:
>>
>>this->renWin->SetOffScreenRendering(1);
>>
>>... take a snapshot of the render window here
>>
>>this->renWin->SetOffScreenRendering(0);
>>
>>I use this to output a series of snapshots (to later create an
>>animation) and it seems to work fine for me, although I do not have
>>multiple windows that overlap each other. 
>>
>>Hope this helps,
>>
>>Charles
>>
>> 
>>
>>    
>>
>>>>>"Jared Cohen" <Jared.Cohen at noaa.gov> 10/27/04 11:35am >>>
>>>>>       
>>>>>
>>>>>          
>>>>>
>> Hi all. I'm part of a team that's building a large, multi-window
>>    
>>
>GUI;
>  
>
>>one of the windows contains the VTK RenderWindow. We implemented a 
>>function to save the scene as a PNG, but there's a problem: if any
of
>>    
>>
>
>  
>
>>the other windows are in the way of the RenderWindow, they get 
>>incorporated into the resulting PNG snapshot! What I want to do is
>>    
>>
>take
>  
>
>>a snapshot of ONLY the contents of the RenderWindow, regardless of 
>>whether or not there are other windows in front of the RenderWindow.
>>    
>>
>Is
>  
>
>>there a way to do this?
>>
>> 
>>
>>    
>>
>
>  
>




From tfogal at apollo.sr.unh.edu  Wed Oct 27 16:05:39 2004
From: tfogal at apollo.sr.unh.edu (tom fogal)
Date: Wed, 27 Oct 2004 16:05:39 -0400
Subject: [vtkusers] How to capture images from ONLY the RenderWindow? 
In-Reply-To: Your message of "Wed, 27 Oct 2004 11:43:31 MDT."
	<s17f89f5.020@mailwest.rwdiwest.com> 
References: <s17f89f5.020@mailwest.rwdiwest.com> 
Message-ID: <200410272005.i9RK5dME023591@apollo.sr.unh.edu>

 <s17f89f5.020 at mailwest.rwdiwest.com>"Charles Boivin" writes:
>Hey Jared,
>
>Have you tried using offscreen rendering? Something like this:
>
>this->renWin->SetOffScreenRendering(1);
>
>... take a snapshot of the render window here
>
>this->renWin->SetOffScreenRendering(0);

I can confirm this to work.

We also ran into this issue and its a huge hassle. Luckily for our app
we mostly WANT to do offscreen rendering so its not so bad.

It sounds like you need to both display the window and save the image.
I think the solution for you is to have two render windows, one
onscreen and one offscreen, and throw the actors at both.
It will be slow but I don't see much of an alternative at this time.

If you're on any sort of UNIX, I'd recommend you look into Glen
Lehmann/John Shalf's vtkXOpenGLOffscreenRenderWindow at:

http://www.imaging.robarts.ca/~glehmann/OffScreen/OffScreen.html

This is also mentioned on the wiki: http://www.vtk.org/Wiki/VTK_Classes.

If you're on windows, the SetOffScreenRendering mentioned by Charles
should work.

HTH, good luck.

-tom

<snip>

>>>> "Jared Cohen" <Jared.Cohen at noaa.gov> 10/27/04 11:35am >>>
>  Hi all. I'm part of a team that's building a large, multi-window GUI;
>
>one of the windows contains the VTK RenderWindow. We implemented a 
>function to save the scene as a PNG, but there's a problem: if any of 
>the other windows are in the way of the RenderWindow, they get 
>incorporated into the resulting PNG snapshot! What I want to do is take
>a snapshot of ONLY the contents of the RenderWindow, regardless of 
>whether or not there are other windows in front of the RenderWindow. Is
>there a way to do this?


From beau.sapach at ualberta.ca  Wed Oct 27 16:42:35 2004
From: beau.sapach at ualberta.ca (Beau Sapach)
Date: Wed, 27 Oct 2004 14:42:35 -0600
Subject: [vtkusers] Moving Actor2d
Message-ID: <200410272040.i9RKeaBP011658@pilsener.srv.ualberta.ca>


Hello everyone,

I'm trying to "pick" an actor2d like this:

vtkRenderWindowInteractor * iact = vtkRenderWindowInteractor::New();
int x = iact->GetEventPosition()[0];
int y = iact->GetEventPosition()[1];

vtkPropPicker * picker = vtkPropPicker::New();
picker->PickProp(x,y,0,renderer);

Is this the right way to do it?  If my actor2D is an image that's 10x10 my
xy coordinates passed to pickprop must be within that square, but starting
at the lower left corner of the renderwindow.  If I explicitly set the
position of the actor like this:

actor->GetPositionCoordinate()->SetValue(100,100);

then pass 101,101 to PickProp() the pick fails.... what's wrong here?

I am setting the actor's coordinate system:

actor->GetPositionCoordinate()->SetCoordinateSystemToDisplay();

I suspect it's a coordinate system problem, but I can't seem to figure it
out..... Anyone out there have any ideas?

Beau



From clinton at elemtech.com  Wed Oct 27 16:57:00 2004
From: clinton at elemtech.com (Clinton Stimpson)
Date: Wed, 27 Oct 2004 14:57:00 -0600
Subject: [vtkusers] How to capture images from ONLY the RenderWindow?
In-Reply-To: <20041027190416.80F8F2ECC5@public.kitware.com>
References: <20041027190416.80F8F2ECC5@public.kitware.com>
Message-ID: <41800B9C.1090502@elemtech.com>

Have you tried?

  vtkWindowToImageFilter* wintoimage = vtkWindowToImageFilter::New();
  wintoimage->ReadFrontBufferOff();

Clint


------------------------------

>Message: 2
>Date: Wed, 27 Oct 2004 13:35:53 -0400
>From: "Jared Cohen" <Jared.Cohen at noaa.gov>
>Subject: [vtkusers] How to capture images from ONLY the RenderWindow?
>To: vtkusers at vtk.org
>Message-ID: <417FDC79.1000301 at noaa.gov>
>Content-Type: text/plain; charset="us-ascii"
>
>  Hi all. I'm part of a team that's building a large, multi-window GUI; 
>one of the windows contains the VTK RenderWindow. We implemented a 
>function to save the scene as a PNG, but there's a problem: if any of 
>the other windows are in the way of the RenderWindow, they get 
>incorporated into the resulting PNG snapshot! What I want to do is take 
>a snapshot of ONLY the contents of the RenderWindow, regardless of 
>whether or not there are other windows in front of the RenderWindow. Is 
>there a way to do this?
>-------------- next part --------------
>An HTML attachment was scrubbed...
>URL: http://public.kitware.com/pipermail/vtkusers/attachments/20041027/a49c0973/attachment-0001.html
>  
>
>  
>



From emiliano at veccsa.com  Wed Oct 27 17:42:38 2004
From: emiliano at veccsa.com (Emiliano Beronich)
Date: Wed, 27 Oct 2004 18:42:38 -0300
Subject: [vtkusers] Moving Actor2d
In-Reply-To: <200410272040.i9RKeaBP011658@pilsener.srv.ualberta.ca>
References: <200410272040.i9RKeaBP011658@pilsener.srv.ualberta.ca>
Message-ID: <4180164E.1030007@veccsa.com>

Hi Beau,

Sometime ago I worked with moving Actor2D, but now I don't remember 
every detail. I have sent a previous message on this issue. Maybe this 
could be of help. In this message, there is a class with some working 
code for moving actor2d.

http://public.kitware.com/pipermail/vtkusers/2004-September/076278.html

Try to set the actor2d's position with
Actor2D->SetPosition() instead of Actor2D->GetPositionCoordinate()...

Maybe this could produces better results.

Regards,
Emiliano



Beau Sapach wrote:

> Hello everyone,
> 
> I'm trying to "pick" an actor2d like this:
> 
> vtkRenderWindowInteractor * iact = vtkRenderWindowInteractor::New();
> int x = iact->GetEventPosition()[0];
> int y = iact->GetEventPosition()[1];
> 
> vtkPropPicker * picker = vtkPropPicker::New();
> picker->PickProp(x,y,0,renderer);
> 
> Is this the right way to do it?  If my actor2D is an image that's 10x10 my
> xy coordinates passed to pickprop must be within that square, but starting
> at the lower left corner of the renderwindow.  If I explicitly set the
> position of the actor like this:
> 
> actor->GetPositionCoordinate()->SetValue(100,100);
> 
> then pass 101,101 to PickProp() the pick fails.... what's wrong here?
> 
> I am setting the actor's coordinate system:
> 
> actor->GetPositionCoordinate()->SetCoordinateSystemToDisplay();
> 
> I suspect it's a coordinate system problem, but I can't seem to figure it
> out..... Anyone out there have any ideas?
> 
> Beau
> 
> _______________________________________________
> This is the private VTK discussion list. 
> Please keep messages on-topic. Check the FAQ at: <http://public.kitware.com/cgi-bin/vtkfaq>
> Follow this link to subscribe/unsubscribe:
> http://www.vtk.org/mailman/listinfo/vtkusers
> 
> 


From skboyd at ucalgary.ca  Wed Oct 27 19:56:52 2004
From: skboyd at ucalgary.ca (Steve Boyd)
Date: Wed, 27 Oct 2004 16:56:52 -0700
Subject: [vtkusers] Cell Picking to return FE element ID?
Message-ID: <418035C4.1090602@ucalgary.ca>

Hi,

I read in my finite element results as unstructured data and then render 
them.  I'd like to use cell picking to ID certain cells from the FE model.

Right now, cell picking returns the ID of the rendered primative (i.e., 
a face of one of the elements) rather than the original element ID.

How can I return the FE element ID rather than the rendered face ID 
(which is meaningless in terms of the original FE data)?

Thanks,

Steve



From shijith at ddd.co.jp  Wed Oct 27 21:33:03 2004
From: shijith at ddd.co.jp (shijith)
Date: Thu, 28 Oct 2004 10:33:03 +0900
Subject: [vtkusers] RE: vtk application on Document/View (MDI) pattern.
In-Reply-To: <20041027143009.0B7C82FF98@public.kitware.com>
Message-ID: <LGEEICMBGMOGCJKAGDHLGEDACAAA.shijith@ddd.co.jp>

Hi,
I think you have overridden virtual function Create().
But in instead you Add WM_CREATE in your view class using class wizard.
which looks something like this.

int C3DView::OnCreate(LPCREATESTRUCT lpCreateStruct)
{
	if (CView::OnCreate(lpCreateStruct) == -1)
		return -1;

	this->renWin->AddRenderer(this->ren);
    	this->renWin->SetParentId(this->m_hWnd);
    	this->iren->SetRenderWindow(this->renWin);

}
Bye
Shijith

Message: 4
Date: Wed, 27 Oct 2004 11:32:03 -0300
From: "Luis Alberto Pereira" <l.a.pereira at uol.com.br>
Subject: [vtkusers] vtk application on Document/View (MDI) pattern.
To: <vtkusers at vtk.org>
Message-ID: <20041027142945.D1A57A11C at scorpion3.uol.com.br>
Content-Type: text/plain; charset="iso-8859-1"


Dears,

Im using VC++ 2003 to construct my vtk application on Document/View (MDI)
pattern.
Im using in Create event in CView class follow code:

BOOL C3DView::Create(LPCTSTR lpszClassName, LPCTSTR lpszWindowName, DWORD
dwStyle, const RECT& rect, CWnd* pParentWnd, UINT nID, CCreateContext*
pContext)
{
       // TODO: Add your specialized code here and/or call the base class
    this->renWin->AddRenderer(this->ren);
    this->renWin->SetParentId(this->m_hWnd);
    this->iren->SetRenderWindow(this->renWin);

    return CView::Create(lpszClassName, lpszWindowName, dwStyle, rect,
pParentWnd, nID, pContext);
}

And vtk render window is being created out of CchildFrame client area. It is
creating a separeted/duplicated render window of Cview in CchildFrame.
Can someone help me solve this problem ?

Thanks

Luis Alberto
55 11 8184 8444
55 11 3744 9965
l.a.pereira at uol.com.br
lapereira_br at hotmail.com
lalberto at stefanini.com.br <mailto:lalberto at steftanini.com.br>






From markww at gmail.com  Wed Oct 27 22:14:49 2004
From: markww at gmail.com (Mark Wyszomierski)
Date: Wed, 27 Oct 2004 22:14:49 -0400
Subject: [vtkusers] running example program
Message-ID: <dfdfe01e04102719147fae609@mail.gmail.com>

Hi everyone,

I just downloaded and compiled VTK. I am trying to use the example
programs, specifically Medical1.
(C:\VTK\Examples\Medical\Cxx\Medical1).

I have a dicom dataset I would like to visualize. I have them in a
single directory. Do I need to convert this dataset into some kind of
3D file type? Or will that be generated from the 2D slices?

This is my first work in 3D file types for medical imaging, what are
the most popular formats?

Thank you,
Mark


From l.a.pereira at uol.com.br  Wed Oct 27 22:23:11 2004
From: l.a.pereira at uol.com.br (Luis Alberto Pereira)
Date: Wed, 27 Oct 2004 23:23:11 -0300
Subject: [vtkusers] vtk application on Document/View (MDI) pattern X
	vtkWin32RenderWindowInteractor
Message-ID: <20041028022038.3C1478181@scorpion2.uol.com.br>

Hi all,
 
I succeeded to solve the setup renWin using code below, however now I am
having problem with "this->iren->SetRenderWindow(this->renWin);" in the same
code block. The vtkWin32RenderWindowInteractor class do not operate.
Can someone help me again ?
 
 
BOOL CAnalitica3DBIView::Create(LPCTSTR lpszClassName, LPCTSTR
lpszWindowName, DWORD dwStyle, const RECT& rect, CWnd* pParentWnd, UINT nID,
CCreateContext* pContext) {
      // TODO: Add your specialized code here and/or call the base class
      if ((CView::Create(lpszClassName, lpszWindowName, dwStyle, rect,
pParentWnd, nID, pContext))==-1)
            return false;
      
      this->renWin->AddRenderer(this->ren);
      this->renWin->SetParentId(this->GetParent()->GetSafeHwnd());
      this->renWin->SetWindowId(this->GetSafeHwnd());
      this->iren->SetRenderWindow(this->renWin);
 
      return true;
}
 
Thanks all,
 
 
 
Luis Alberto
55 11 8184 8444
55 11 3744 9965
l.a.pereira at uol.com.br
lapereira_br at hotmail.com
 <mailto:lalberto at steftanini.com.br>  
 
 
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From flypureau at hotmail.com  Wed Oct 27 22:30:26 2004
From: flypureau at hotmail.com (Tracy)
Date: Thu, 28 Oct 2004 12:30:26 +1000
Subject: [vtkusers] Eorrr:No data to generate normals for!
Message-ID: <BAY24-DAV11XrRjbDt30000f4ab@hotmail.com>

Dear All, 

Does anybody know the reason to cause error message like 
"ERROR: In \Program Files\vtk42\VTK-4.2-LatestRelease\Vtk\Graphics\vtkPolyDataNormals.cxx, line 88
vtkPolyDataNormals (09C53780): No data to generate normals for!"? 

Actually what I do is following the example from "VTK\Example\Visual...\TCL\ExtractUgGrid.tcl with my own source file.
The format of my source file is exactly same as the original file "..\data\blow.vtk" except the specific data.
I do change the related parameters from the code file like SetScalarsName(), setVectorsName(), setCellMinimum() and SetCellMaximum().
But it doesn't  work well (I work it with C++.net).

Anybody can help me?

Thanks In advance.

Tracy
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From jxjx at sjtu.edu.cn  Thu Oct 28 01:32:09 2004
From: jxjx at sjtu.edu.cn (jiang-gx)
Date: Thu, 28 Oct 2004 13:32:09 +0800
Subject: [vtkusers] help:a memory allocation error in vtkMarchingCubes!
Message-ID: <20041028053333.D88CA7B03BD@mx1.sjtu.edu.cn>

hi! 
	i used the vktMarchingCubes for surface visualiation of a medcial image data which have  544 slices, and the data size is 512*512*544. my coputer's memeory size is 2G and is big enough.
   but a error saying--- "Cannot allocate memory\n"--- occured in the file vtkIdTypeArray.cxx  at line 181,(my vtk version is 4.2)   .

    The following codes is where the error thrown out in the file vtkIdTypeArray.cxx:
		if ( (newArray = new vtkIdType[newSize]) == NULL )
   		 {
   			 vtkErrorMacro(<< "Cannot allocate memory\n");
   			 return 0;
   		 }

   what can i do ? please help me or give me some advice !  thanks ! 

 when i only read 300 slice of the data or read some other smaller data ,the program will run successfully.  so it seemed that the 512*512*544 data the too big for  vktMarchingCubes. but i don't think it should be the course.

????????jiang-gx
????????jxjx at sjtu.edu.cn
??????????2004-10-28

From stefan.wesarg at igd.fraunhofer.de  Thu Oct 28 03:08:56 2004
From: stefan.wesarg at igd.fraunhofer.de (Stefan Wesarg)
Date: Thu, 28 Oct 2004 09:08:56 +0200
Subject: [vtkusers] running example program
In-Reply-To: <dfdfe01e04102719147fae609@mail.gmail.com>
References: <dfdfe01e04102719147fae609@mail.gmail.com>
Message-ID: <41809B08.3030505@igd.fraunhofer.de>

Hi Mark,

the example that you are using does not support the loading of DICOM  
data. In fact VTK doesn't do that at all.
If you want to load your DICOM data it has to be converted to 16 Bit 
image data without any additional information in the files. For 
uncompressed 16 Bit DICOM data - I gues that this is what you are 
dealing with - it is quite easy.

Simply write a small program that removes the header from the DICOM file 
and that writes the remaining information back to a new file. The 
program has to look for the Tag "7FE0" that signifies the start of the 
image information. The image information itself starts 2 Bytes after the 
"7FE0" Tag, i.e. "E0 7F xx xx ii" where "ii" is the first byte of the 
image information.

Stripping the DICOM header this way allows you to load the image data 
with the vtkVolume16Reader that is used in the Medical1 example. (I did 
it a several times like this, and it works quite well.)

Best regards,
Stefan

Mark Wyszomierski wrote:

>Hi everyone,
>
>I just downloaded and compiled VTK. I am trying to use the example
>programs, specifically Medical1.
>(C:\VTK\Examples\Medical\Cxx\Medical1).
>
>I have a dicom dataset I would like to visualize. I have them in a
>single directory. Do I need to convert this dataset into some kind of
>3D file type? Or will that be generated from the 2D slices?
>
>This is my first work in 3D file types for medical imaging, what are
>the most popular formats?
>
>Thank you,
>Mark
>_______________________________________________
>This is the private VTK discussion list. 
>Please keep messages on-topic. Check the FAQ at: <http://public.kitware.com/cgi-bin/vtkfaq>
>Follow this link to subscribe/unsubscribe:
>http://www.vtk.org/mailman/listinfo/vtkusers
>  
>

-- 
---------------------------------------------------------------------
Dipl.-Phys. Stefan Wesarg

Fraunhofer Institute for Computer Graphics
Cognitive Computing and Medical Imaging (A7)
Fraunhoferstr. 5, 64283 Darmstadt, Germany
---------------------------------------------------------------------
email:	stefan.wesarg at igd.fraunhofer.de
http://www.igd.fhg.de/~swesarg/

phone:	+49 6151 - 155 511
fax:	+49 6151 - 155 480
---------------------------------------------------------------------

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From laramee at vrvis.at  Thu Oct 28 03:13:16 2004
From: laramee at vrvis.at (Robert S Laramee)
Date: Thu, 28 Oct 2004 09:13:16 +0200
Subject: [vtkusers] creating a demo test program
Message-ID: <20041028071316.431C85B207@mail2.avl.com>

Dear Fellow VTK Users,

We here at the VRVis Research Center
(vrvis.at) are trying to perform a simple
evaluation of the VTK against three other 
packages: Open Inventer from Mercury, Coin3D, 
and Hoops3D.

As part of our evaluation we would like to
construct a very simple test program.
We would like a program to:

1.  Load an arbitrary (one of our own)
    triangular surface mesh
2.  Rotate the mesh 360 degrees
3.  Measure and print out the frames/second
    and (optionally)
4.  Perform some off-screen rendering of
    the resulting image

Can anyone suggest the best place for us to
start?  Is there an existing sample VTK demo 
program that could be modified to perform
this task?  Any suggestions would be appreciated.

-cheers, bob

-- 
Robert S. Laramee
tel: +43 (316) 787-1740
fax: +43 (316) 787-777
http://www.VRVis.at/ar3/pr2/
John Kerry for President: http://www.johnkerry.com/


From rohlof at gmx.de  Thu Oct 28 03:35:20 2004
From: rohlof at gmx.de (Timo Frenzel)
Date: Thu, 28 Oct 2004 09:35:20 +0200
Subject: AW: [vtkusers] Cell Picking to return FE element ID?
In-Reply-To: <418035C4.1090602@ucalgary.ca>
Message-ID: <20041028073555.B9EC82C5E8@public.kitware.com>

I don't understand your problem exactly...
But if your problem is that you pick IDs of a wrong body you should try to
turn it unpickable

actor -> PickableOff();

If you can't pick any point or cell IDs afterwards, the other body may not
contain these. Perhaps you have to convert your original to a pickable
dataset.

Try to copy it, to a polydata (with DeepCopy or CopyStructure) or
similiar... 

Good Luck, Timo Frenzel.


-----Urspr?ngliche Nachricht-----
Von: vtkusers-bounces at vtk.org [mailto:vtkusers-bounces at vtk.org] Im Auftrag
von Steve Boyd
Gesendet: Donnerstag, 28. Oktober 2004 01:57
An: vtk
Betreff: [vtkusers] Cell Picking to return FE element ID?

Hi,

I read in my finite element results as unstructured data and then render
them.  I'd like to use cell picking to ID certain cells from the FE model.

Right now, cell picking returns the ID of the rendered primative (i.e., a
face of one of the elements) rather than the original element ID.

How can I return the FE element ID rather than the rendered face ID (which
is meaningless in terms of the original FE data)?

Thanks,

Steve

_______________________________________________
This is the private VTK discussion list. 
Please keep messages on-topic. Check the FAQ at:
<http://public.kitware.com/cgi-bin/vtkfaq>
Follow this link to subscribe/unsubscribe:
http://www.vtk.org/mailman/listinfo/vtkusers



From massimo.ivani at mlsw.com  Thu Oct 28 02:38:21 2004
From: massimo.ivani at mlsw.com (Massimo Ivani)
Date: Thu, 28 Oct 2004 08:38:21 +0200
Subject: [vtkusers] RayCast, MIP and Plane
Message-ID: <3hc759$q43j3@mail-r2.cs.interbusiness.it>

Hello vtk Users,
 
I'm working with vtk 4.0 with CT images and using RayCasy or MIP functions
to create Volume Models. All is working well but if I add a plane or a
sphere to the scene using a texture on them, for example a bone texture of
cut plane, I get strange results when I rotate the model: cut plane
disappears, cut plane change dimension and so on. All is ok if I add a plane
to the scene with no texture on it. May be that is a bug of vtk 4.0???
 
Thank you for your help. 
 
Dr. Massimo Ivani
Media Lab Software
Ph. (+39) 0187517775
Fax (+39) 0187511833
 <mailto:massimo.ivani at mlsw.com> massimo.ivani at mlsw.com
 <http://www.mlsw.com> www.mlsw.com
 <http://www.implant3d.com> www.implant3d.com
 
 
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From I.deBoer at polytec.de  Thu Oct 28 04:18:54 2004
From: I.deBoer at polytec.de (de Boer Ingo)
Date: Thu, 28 Oct 2004 10:18:54 +0200
Subject: [vtkusers] vtk application on Document/View (MDI) pattern.
Message-ID: <1484AEC8AB498A4EB64D4A8137D23FD90145007D@02polywbr.waldbronn.polytec.de>


Hi Luis,

well, I guess the problem is, that you have to create the actuall
window before setting the handle to vtk, like:

BOOL CAnalitica3DBIView::Create(LPCTSTR lpszClassName, LPCTSTR lpszWindowName, DWORD dwStyle, const RECT& rect, CWnd* pParentWnd, UINT nID, CCreateContext* pContext)
{
    BOOL bResult = CView::Create(lpszClassName, lpszWindowName, dwStyle, rect, pParentWnd, nID, pContext);

    if (bResult)
    {
     // TODO: Add your specialized code here and/or call the base class
     this->renWin->AddRenderer(this->ren);
     this->renWin->SetParentId(this->GetParent()->GetSafeHwnd());
     this->renWin->SetWindowId(this->GetSafeHwnd());
     this->iren->SetRenderWindow(this->renWin);
    }
         
    return bResult;
}

you can also take a look at my MFC samples:
http://www.vtk.org/Bug/bug.php?op=show&bugid=649&pos=0

greets
  Ingo

---
Dr.-Ing. Ingo H. de Boer

Polytec GmbH
Polytec-Platz 1-7, 76337 Waldbronn, Germany
phone: ++49 7243 604 106
fax  : ++49 7243 604 255

I followed your orientations and get this message:
Then , if I press Ignore, the execution application continue with same problem wich I related
 
 
BOOL CAnalitica3DBIView::Create(LPCTSTR lpszClassName, LPCTSTR lpszWindowName, DWORD dwStyle, const RECT& rect, CWnd* pParentWnd, UINT nID, CCreateContext* pContext)
{
       // TODO: Add your specialized code here and/or call the base class
    this->renWin->AddRenderer(this->ren);
       this->renWin->SetParentId(this->GetParent()->GetSafeHwnd());
    this->renWin->SetWindowId(this->GetSafeHwnd());
       this->iren->SetRenderWindow(this->renWin);
              
       return CView::Create(lpszClassName, lpszWindowName, dwStyle, rect, pParentWnd, nID, pContext);
}


From michnay at freemail.hu  Thu Oct 28 05:43:32 2004
From: michnay at freemail.hu (=?ISO-8859-2?Q?Michnay_Bal=E1zs?=)
Date: Thu, 28 Oct 2004 11:43:32 +0200 (CEST)
Subject: [vtkusers] vtkImageActor; Key events
Message-ID: <freemail.20040928114332.50458@fm3.freemail.hu>

Dear all,
I'm using a vtkImageActor object to display an image. What I noticed is 
that it doesn't display images with a width of more than 1024 pixels. 
1024 still works but it won't display an image being 1025 pixels wide. I 
use vtkBMPReader to read the image and the reader works fine, 
because the image can be displayed with a vtkImageViewer. How can I 
make vtkImageActor display higher resolution images?
My other question is about vtkRenderWindowInteractor. Having 
instantiated the class I initialize the interactor but it doesn't catch key 
events. Do I need to do some special settings to make it catch key 
events? Mouse events work, I can rotate, translate, scale without 
problems.
Thanks for you reply,
All the best,
  MB.


From sscomp2004 at yahoo.com.au  Thu Oct 28 06:12:05 2004
From: sscomp2004 at yahoo.com.au (s comp)
Date: Thu, 28 Oct 2004 20:12:05 +1000 (EST)
Subject: [vtkusers] Where time calls in vtk (tcl) script?
Message-ID: <20041028101205.46771.qmail@web61103.mail.yahoo.com>

Where should I put calls to time, in a tcl script to find how long a filter takes to process data?
 
simply puting directly before and after doesnt work (both time are same when actual time is around 15 minutes.
 
 
Thanks,
 
Sonam



---------------------------------
Find local movie times and trailers on Yahoo! Movies.
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From rohlof at gmx.de  Thu Oct 28 06:51:35 2004
From: rohlof at gmx.de (Timo Frenzel)
Date: Thu, 28 Oct 2004 12:51:35 +0200 (MEST)
Subject: [vtkusers] How do I get points from vtkClipPolyData?
Message-ID: <17425.1098960695@www45.gmx.net>

Hi,

i clipped PolyDataSet with vtkClipPolyData and added it to the renderer.
I can pick the new meshes and points, but i cannot add them to my
PolyDataSet.

Which filter or data conversion i have to use to copy the point and cell
informations?

Heres my code:

vtkClipPolyData *boneclipper = vtkClipPolyData::New();
boneclipper -> SetInput(polydatastructure);
boneclipper -> SetClipFunction(plane);      //defined vtkplane
boneclipper -> GenerateClippedOutputOn();
boneclipper -> SetValue(0.0);

polydatastructure -> Update();

vtkPolyDataMapper *clipMapper = vtkPolyDataMapper::New();
clipMapper -> SetInput((vtkPolyData *)boneclipper -> GetOutput());

vtkActor *clipActor = vtkActor::New();
clipActor -> SetMapper(clipMapper);

ren -> AddActor(clipActor);

// First and not working attempt to get point data from the vtkClipPolyData
// Whats my fault?
vtkPolyData *clipData = vtkPolyData::New();
clipData -> DeepCopy((vtkDataSet *)boneclipper->GetOutput());
clipData -> Update();
clipData -> BuildLinks();

Thx in advance, Timo Frenzel

-- 
NEU +++ DSL Komplett von GMX +++ http://www.gmx.net/de/go/dsl
GMX DSL-Netzanschluss + Tarif zum superg?nstigen Komplett-Preis!



From michnay at freemail.hu  Thu Oct 28 07:04:55 2004
From: michnay at freemail.hu (=?ISO-8859-2?Q?Michnay_Bal=E1zs?=)
Date: Thu, 28 Oct 2004 13:04:55 +0200 (CEST)
Subject: [vtkusers] Connected component labeling with VTK
Message-ID: <freemail.20040928130455.41365@fm13.freemail.hu>

Hi all,
Is there a way to perform connected component labeling with VTK or do 
I need to write my own function?
Thanks,
 MB


From malcolm at geovision.co.za  Thu Oct 28 07:16:05 2004
From: malcolm at geovision.co.za (Malcolm Drummond)
Date: Thu, 28 Oct 2004 13:16:05 +0200
Subject: [vtkusers] Cell Picking to return FE element ID?
References: <418035C4.1090602@ucalgary.ca>
Message-ID: <000301c4bcdf$e6980d70$adf4fea9@bart>

Hi Steve

If the problem is due to cell decomposition for rendering, then using
vtkIdFilter upstream might help. Otherwise you'll have to assign IDs as cell
values when creating your unstructured grid (or when you write the UG file).
You can just use the pick ID as an index into the array of original IDs (in
cell-data scalars).

HTH
Malcolm

----- Original Message -----
From: "Steve Boyd" <skboyd at ucalgary.ca>
To: "vtk" <vtkusers at public.kitware.com>
Sent: Thursday, October 28, 2004 1:56 AM
Subject: [vtkusers] Cell Picking to return FE element ID?


> Hi,
>
> I read in my finite element results as unstructured data and then render
> them.  I'd like to use cell picking to ID certain cells from the FE model.
>
> Right now, cell picking returns the ID of the rendered primative (i.e.,
> a face of one of the elements) rather than the original element ID.
>
> How can I return the FE element ID rather than the rendered face ID
> (which is meaningless in terms of the original FE data)?
>
> Thanks,
>
> Steve
>
> _______________________________________________
> This is the private VTK discussion list.
> Please keep messages on-topic. Check the FAQ at:
<http://public.kitware.com/cgi-bin/vtkfaq>
> Follow this link to subscribe/unsubscribe:
> http://www.vtk.org/mailman/listinfo/vtkusers
>



From malcolm at geovision.co.za  Thu Oct 28 07:15:02 2004
From: malcolm at geovision.co.za (Malcolm Drummond)
Date: Thu, 28 Oct 2004 13:15:02 +0200
Subject: [vtkusers] Where time calls in vtk (tcl) script?
References: <20041028101205.46771.qmail@web61103.mail.yahoo.com>
Message-ID: <000201c4bcdf$e5c21fd0$adf4fea9@bart>

Hi Sonam

Use the AddObserver method for 'StartEvent' and 'EndEvent'. From the user's guide ...

proc myCallback {} {
 puts "starting to render"
}

vtkRenderer ren1
ren1 AddObserver StartEvent myCallback

HTH
Malcolm
  ----- Original Message ----- 
  From: s comp 
  To: vtkusers at vtk.org 
  Sent: Thursday, October 28, 2004 12:12 PM
  Subject: [vtkusers] Where time calls in vtk (tcl) script?


  Where should I put calls to time, in a tcl script to find how long a filter takes to process data?

  simply puting directly before and after doesnt work (both time are same when actual time is around 15 minutes.


  Thanks,

  Sonam




------------------------------------------------------------------------------
  Find local movie times and trailers on Yahoo! Movies.



------------------------------------------------------------------------------


  _______________________________________________
  This is the private VTK discussion list. 
  Please keep messages on-topic. Check the FAQ at: <http://public.kitware.com/cgi-bin/vtkfaq>
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From GeorgeCHarrison at aol.com  Thu Oct 28 08:39:22 2004
From: GeorgeCHarrison at aol.com (GeorgeCHarrison at aol.com)
Date: Thu, 28 Oct 2004 08:39:22 EDT
Subject: [vtkusers] vtkInteractorStyleUser
Message-ID: <1fa.8d1f52.2eb2427a@aol.com>

We have worked on and off with vtk for perhaps five years using 
vtkInteractorStyleUser (C++) to handle custom made user interaction. Now getting back to 
using it we see that many of the programs we're using contain legacy methods. We 
would prefer to reconstruct some of these programs getting rid of the legacy 
code without moving out of the vtk environs to customize interaction. Does 
anyone have a pointer to any examples using vtkInteractorStyleUser without the 
legacy code?

Thanks.

George
George C. Harrison
Professor of Computer Science
Norfolk State University
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From Davide.Armeni at TILAB.COM  Thu Oct 28 09:23:09 2004
From: Davide.Armeni at TILAB.COM (Armeni Davide)
Date: Thu, 28 Oct 2004 15:23:09 +0200
Subject: [vtkusers] important, please help simple question
Message-ID: <FFB2EEAB36E85340AE89377C1AD3CC932A4782@EXC01C.cselt.it>

Hi to everyone,
i've a simple question ..

I've an actor an i want to use a vtkOutlineFilter
that contains the actor that i have to render 
calculating the bounds ...

there is a function that automatically do this ?
This is the code:

int Visualize(CString pathoffile)
{
	vtkPolyDataReader *part = vtkPolyDataReader::New();
	part->SetFileName(pathoffile);

	vtkOutlineFilter *outline = vtkOutlineFilter::New();
	outline->SetInput((vtkDataSet*)part->GetOutput());

	vtkDataSetMapper *partMapper = vtkDataSetMapper::New();
	partMapper->SetInput((vtkDataSet*)part->GetOutput());
		
	vtkPolyDataMapper *outlineMapper = vtkPolyDataMapper::New();
	outlineMapper->SetInput(outline->GetOutput());

	vtkPolyDataMapper *partMapper1 = vtkPolyDataMapper::New();
	partMapper1->SetInput(axes->GetOutput());
	
  //The actor is a grouping mechanism: besides the geometry (mapper), it
  // also has a property, transformation matrix, and/or texture map.
  // Here we set its color and rotate it -22.5 degrees.
  vtkLODActor *partActor = vtkLODActor::New();
  partActor->SetMapper(partMapper);
  partActor->GetProperty()->SetColor(0.9, 0.82, 0.54);
  partActor->RotateX(30.0);
  partActor->RotateY(-45.0);

  vtkActor *outlineActor = vtkActor::New();
  outlineActor->SetMapper(outlineMapper);
  outlineActor->GetProperty()->SetColor(0.9, 0.82, 0.54);
  	  
  // Create the graphics structure. The renderer renders into the 
  // render window. The render window interactor captures mouse events
  // and will perform appropriate camera or actor manipulation
  // depending on the nature of the events.
  
  vtkRenderer *ren1 = vtkRenderer::New();
  vtkRenderWindow *renWin = vtkRenderWindow::New();
  renWin->AddRenderer(ren1);
  
  vtkRenderWindowInteractor *iren = vtkRenderWindowInteractor::New();
  iren->SetRenderWindow(renWin);
  
  ren1->AddActor(outlineActor);
  
  ren1->SetViewport(0.0, 0.0, 1.0, 1.0);

  ren1->AddActor(partActor);

  ren1->SetBackground(1.0, 1.0, 1.4);
  	
  renWin->SetSize(800, 800);
  
  // We'll zoom in a little by accessing the camera and invoking a "Zoom"
  // method on it.
  renWin->Render();
  
 
  // This starts the event loop and as a side effect causes an initial render.
  iren->Start();

  // Exiting from here, we have to delete all the instances that
  // have been created.
  part->Delete();
  partMapper->Delete();
  partActor->Delete();
  ren1->Delete();
  renWin->Delete();
  iren->Delete();

  return 0;
}


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From castelo at qiwi.es.dupont.com  Thu Oct 28 10:27:16 2004
From: castelo at qiwi.es.dupont.com (Adalberto Castelo)
Date: Thu, 28 Oct 2004 10:27:16 -0400
Subject: [vtkusers] VTK good for games?
In-Reply-To: <005c01c4bb53$1e2f42f0$a3c77252@ziho>
References: <0e0901c4ba88$1e403720$a3c77252@ziho>
	<200410251805.i9PI5rc6011016@apollo.sr.unh.edu>
	<005c01c4bb53$1e2f42f0$a3c77252@ziho>
Message-ID: <200410281027.16350.castelo@qiwi.es.dupont.com>

Have you ever heard of the Torque engine, by garage games (http://
www.garagegames.com)? Very complete game engine, and a seat only costs US$100 
(if your company is small enough - it becomes $10k, IIRC, if your company 
size or your games sales cross a certain threshold). That's very cheap, as 
game engines go. It's actually being used for commercial games. And it's 
multiplatform. There's a bunch of demos in their website that show the 
engine's capabilities.

Cheers,
Adalberto


On Tuesday 26 October 2004 07:58, Andreas Bednarek wrote:
> Hi,
>
> thanks for suggestions, seems that maybe the next time I'll have the
> opportunity to use VTK? ;-) Although I like its concept and there is lot of
> work done which I hoped would simplify reaching my goal.
>
> >In an other way, if you are expert in OpenGL, you can re-implement some
> >rendering parts
> >to have a best result (in terms of speed). In VTK, there is the "Factory"
> >to offer you the
> >possibility to replace one or more components of VTK (and I think it might
> >be used to
> >replace vtkActor, vtkMapper or vtkTexture objects).
>
> Yes (great feature of free licensing), but I think that replacing the
> renderer and some 3D model parts means to write lot of a 3D engine, which
> is what I tried to avoid vith VTK ...
>
> Huh..seems like I'm probably going to check my skills on writing my own
> engine :)
>
> Thakns
> A.B.

-- 
Adalberto Castelo
DuPont CR&D/I&CT
Wilmington, DE, USA


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From ngonzalez at rcm.upr.edu  Thu Oct 28 10:32:35 2004
From: ngonzalez at rcm.upr.edu (Nathaniel Gonzalez)
Date: Thu, 28 Oct 2004 10:32:35 -0400
Subject: [vtkusers] Color Filter(Human Visible Project)
Message-ID: <1098973955.5810.75.camel@linux.site>

Hi,

I'm currently working on a simple application to display the Visible
Human Data and then add a little more information to the image. I'm
having problems removing the blue gel from the images. I think that
vtk can do it but I don't know how. Many people have process the images
before loading them in vtk. In the web page of Steven Matuszek he says

"In Making use of the fact that little or none of the human body is
green, blue or magenta, this filter simply replaces with black any pixel
whose blue value is more than 1.2 times the red and green values"


If anyone knows how to do this in vtk or in a pre-process script and can
point me in the right direction It would be of a lot of help.

Thanks


Nathaniel Gonzalez
RCMI-CIAR
Medical Science Campus
University of Puerto Rico



From burlen at apollo.sr.unh.edu  Thu Oct 28 10:49:22 2004
From: burlen at apollo.sr.unh.edu (Burlen Loring)
Date: Thu, 28 Oct 2004 10:49:22 -0400
Subject: [vtkusers] How to capture images from ONLY the RenderWindow?
In-Reply-To: <417FE56F.1060809@noaa.gov>
References: <417FE56F.1060809@noaa.gov>
Message-ID: <200410281049.23489.burlen@apollo.sr.unh.edu>

Hi I came into this problem as well, and the offscreen method proposed, didn't work for me. What I ended up doing was forcing my render window to the top, using the tkinter lift method just before the save. I have the render and the save code bound to two different buttons, included below.


	################
	# render code
	renwin = Toplevel(self.MainWindow)  # create child window
        self.PlotWindow = renwin            # save it for use from save
        
        subplot = vtk.vtkRenderer()
        subplot.SetBackground(1,1,1)

        for actor in plotactors:            # add actors only if their draw state is true
            if (actor[2] == True):
                #print "adding %s..."%(actor[1])
                subplot.AddActor(actor[0])
                
        #print self.ActorGenerator.GetPlotAspect()
                                            # pack in a vtk render widget
        tkrw = vtkTkRenderWidget(renwin, width=WINDOW_WIDTH,height=int(WINDOW_HEIGHT*self.ActorGenerator.GetPlotAspect()))
        tkrw.pack(expand=YES, fill=BOTH)

	rw = tkrw.GetRenderWindow()
        rw.AddRenderer(subplot)

        rw.Modified()                       # force vtk to updat scalar bar
        rw.Render()
        
        self.RenderWidget = tkrw            # save this render window




	###################33
	# save as code
	
	# code to get file name excluded

	self.PlotWindow.lift()
        
        renwin = self.RenderWidget.GetRenderWindow()
        renwin.Modified()
        renwin.Render()
        
        ############
        # save png #
        ############
        w2i = vtk.vtkWindowToImageFilter()
        w2i.SetInput(renwin)
        png = vtk.vtkPNGWriter()
        png.SetInput(w2i.GetOutput())        

        png.SetFileName(sfn)
        png.Write()



On Wednesday 27 October 2004 14:14, Jared Cohen wrote:
>   Ok, the first message didn't seem to get through to the mailing list,
> so I'll try this again :-)
> ---------------------------------------------------------------------------
>---------------------------
>
> Hi Charles, thanx for the quick reply! :-)
>
> Yes, I tried offscreen rendering, but it didn't seem to make any
> difference at all. Do I need to enable this "MESA" thing before
> offscreen rendering will work?
>
> Charles Boivin wrote:
> >Hey Jared,
> >
> >Have you tried using offscreen rendering? Something like this:
> >
> >this->renWin->SetOffScreenRendering(1);
> >
> >... take a snapshot of the render window here
> >
> >this->renWin->SetOffScreenRendering(0);
> >
> >I use this to output a series of snapshots (to later create an
> >animation) and it seems to work fine for me, although I do not have
> >multiple windows that overlap each other.
> >
> >Hope this helps,
> >
> >Charles
> >
> >>>>"Jared Cohen" <Jared.Cohen at noaa.gov> 10/27/04 11:35am >>>
> >
> >  Hi all. I'm part of a team that's building a large, multi-window GUI;
> >
> >one of the windows contains the VTK RenderWindow. We implemented a
> >function to save the scene as a PNG, but there's a problem: if any of
> >the other windows are in the way of the RenderWindow, they get
> >incorporated into the resulting PNG snapshot! What I want to do is take
> >
> >a snapshot of ONLY the contents of the RenderWindow, regardless of
> >whether or not there are other windows in front of the RenderWindow. Is
> >
> >there a way to do this?


From stefan.wesarg at igd.fraunhofer.de  Thu Oct 28 10:49:38 2004
From: stefan.wesarg at igd.fraunhofer.de (Stefan Wesarg)
Date: Thu, 28 Oct 2004 16:49:38 +0200
Subject: [vtkusers] running example program
In-Reply-To: <dfdfe01e041028071065e46d3e@mail.gmail.com>
References: <dfdfe01e04102719147fae609@mail.gmail.com>	
	<4180963E.1040403@igd.fraunhofer.de>
	<dfdfe01e041028071065e46d3e@mail.gmail.com>
Message-ID: <41810702.6070407@igd.fraunhofer.de>

Hi Mark,

Your right! Just write the raw image data to a new file for every slice 
and it is done. I looked through my old code and found the read and 
write functions you need. You find them just below.

("unsigned short usVol[iImgSizeX * iImgSizeY]" contains the raw image data)

Best regards,
Stefan

 >>>> start of code snippet <<<<
void read_image(ifstream* pFile)
{
    int iImgSize = iImgSizeX * iImgSizeY;
    int i;
    unsigned char byte;
    unsigned char high, low;
    unsigned short usTag = 0x0000;

    // ignore header
    while (usTag != 0x7fe0)
    {
        pFile->read((unsigned char*) &low, sizeof(low));
        pFile->read((unsigned char*) &high, sizeof(high));
        usTag = (256 * high + low);
    }

    // read the last header bytes
    pFile->read((unsigned char*) &low, sizeof(low));
    pFile->read((unsigned char*) &high, sizeof(high));

    // start reading the data
    for (i = 0; i < iImgSize; i++)
    {
        pFile->read((unsigned char*) &low, sizeof(low));
        pFile->read((unsigned char*) &high, sizeof(high));
        usVol[i] = (256 * high + low);
    }

}

void write_image(ofstream* pFileOut)
{
    int iImgSize = iImgSizeX * iImgSizeY;

    for (int i = 0; i < iImgSize; i++)
    {
        unsigned short high    = usVol[i] >> 8;
        unsigned short low = unsigned short(usVol[i] << 8);
        low = low >> 8;
        *pFileOut << unsigned char(low);
        *pFileOut << unsigned char(high);
    }
}
 >>>> end of code snippet <<<<

Mark Wyszomierski wrote:

>Hi Stefan,
>
>Thanks this is just what I needed to know, I am in fact using
>uncompressed 16 bit data. Getting the pixel data as you suggested will
>be easy, in what form should I save it though? For each image slice do
>I literally extract byte 1 of the pixel data to the end, then write
>ONLY that information to a new file? No other information, just the
>pixel data?
>
>Thanks!
>
>
>On Thu, 28 Oct 2004 08:48:30 +0200, Stefan Wesarg
><stefan.wesarg at igd.fraunhofer.de> wrote:
>  
>
>>Hi Mark,
>>
>>the example that you are using does not support the loading of DICOM
>>data. In fact VTK doesn't do that at all.
>>If you want to load your DICOM data it has to be converted to 16 Bit
>>image data without any additional information in the files. For
>>uncompressed 16 Bit DICOM data - I gues that this is what you are
>>dealing with - it is quite easy.
>>
>>Simply write a small program that removes the header from the DICOM file
>>and that writes the remaining information back to a new file. The
>>program has to look for the Tag "7FE0" that signifies the start of the
>>image information. The image information itself starts 2 Bytes after the
>>"7FE0" Tag, i.e. "E0 7F xx xx ii" where "ii" is the first byte of the
>>image information.
>>
>>Stripping the DICOM header this way allows you to load the image data
>>with the vtkVolume16Reader that is used in the Medical1 example. (I did
>>it a several times like this, and it works quite well.)
>>
>>Best regards,
>>Stefan
>>
>>
>>
>>Mark Wyszomierski wrote:
>>
>>    
>>
>>>Hi everyone,
>>>
>>>I just downloaded and compiled VTK. I am trying to use the example
>>>programs, specifically Medical1.
>>>(C:\VTK\Examples\Medical\Cxx\Medical1).
>>>
>>>I have a dicom dataset I would like to visualize. I have them in a
>>>single directory. Do I need to convert this dataset into some kind of
>>>3D file type? Or will that be generated from the 2D slices?
>>>
>>>This is my first work in 3D file types for medical imaging, what are
>>>the most popular formats?
>>>
>>>Thank you,
>>>Mark
>>>_______________________________________________
>>>      
>>>
---------------------------------------------------------------------
Dipl.-Phys. Stefan Wesarg

Fraunhofer Institute for Computer Graphics
Cognitive Computing and Medical Imaging (A7)
Fraunhoferstr. 5, 64283 Darmstadt, Germany
---------------------------------------------------------------------
email:	stefan.wesarg at igd.fraunhofer.de
http://www.igd.fhg.de/~swesarg/

phone:	+49 6151 - 155 511
fax:	+49 6151 - 155 480
---------------------------------------------------------------------

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From mathieu.malaterre at kitware.com  Thu Oct 28 11:13:47 2004
From: mathieu.malaterre at kitware.com (Mathieu Malaterre)
Date: Thu, 28 Oct 2004 11:13:47 -0400
Subject: [vtkusers] creating a demo test program
In-Reply-To: <20041028071316.431C85B207@mail2.avl.com>
References: <20041028071316.431C85B207@mail2.avl.com>
Message-ID: <41810CAB.4010800@kitware.com>

Robert S Laramee wrote:
> Dear Fellow VTK Users,
> 
> We here at the VRVis Research Center
> (vrvis.at) are trying to perform a simple
> evaluation of the VTK against three other 
> packages: Open Inventer from Mercury, Coin3D, 
> and Hoops3D.
> 
> As part of our evaluation we would like to
> construct a very simple test program.
> We would like a program to:
> 
> 1.  Load an arbitrary (one of our own)
>     triangular surface mesh

In python/tcl I would recommend the use of:

vtkProgrammableSource
http://www.vtk.org/doc/nightly/html/classvtkProgrammableSource.html
Ex:
For example: reconstructSurface.py

For C++ I would just create a vtkUnstructuredGrid/vtkPolyData:

VTK/Examples/DataManipulation/Cxx/Cube.cxx

> 2.  Rotate the mesh 360 degrees

Ex:
VTK/Examples/Tutorial/Step1/Cone.cxx

> 3.  Measure and print out the frames/second
>     and (optionally)

Look for some existing benchmark:

- TimeRenderer
- TimeRenderer2

and if you use VTK from CVS:

- VTKBenchMark


> 4.  Perform some off-screen rendering of
>     the resulting image

On windows this is straightforward, just use the opengl driver. On 
linux/unix you'll haver to build Mesa.

http://vtk.org/Wiki/VTK_FAQ#How_to_build_VTK_for_offscreen_rendering.3F

VTK/Examples/MangledMesa/Tcl/OffScreenCone.tcl
VTK/Examples/MangledMesa/Tcl/OffScreenPrinting.tcl

> Can anyone suggest the best place for us to
> start?  Is there an existing sample VTK demo 
> program that could be modified to perform
> this task?  Any suggestions would be appreciated.

HTH
Mathieu




From laramee at vrvis.at  Thu Oct 28 11:20:52 2004
From: laramee at vrvis.at (Robert S Laramee)
Date: Thu, 28 Oct 2004 17:20:52 +0200
Subject: [vtkusers] problems compiling VTK with Tcl/Tk
Message-ID: <20041028152052.A07F15B1E1@mail2.avl.com>

Dear Fellow VTK Users,

i'm having a problem compiling the VTK with
Tcl/Tk.  i can compile and run the demo
programs just fine without Tcl/Tk.

i've downloaded and installed Tcl and
Tk v 8.4.7.  i've run ccmake and added 
the Tcl/Tk include directories as follows:

 BUILD_EXAMPLES                   ON
 BUILD_SHARED_LIBS                OFF
 CMAKE_BACKWARDS_COMPATIBILITY    1.6
 CMAKE_BUILD_TYPE
 CMAKE_INSTALL_PREFIX             /home/larameer/evaluation/vtk/vtk-src-unix
 TCL_INCLUDE_PATH                 /home/larameer/tcl/tcl8.4.7/unix/include
 TCL_LIBRARY                      /home/larameer/tcl/tcl8.4.7/unix/lib
 TK_INCLUDE_PATH                  /home/larameer/tcl/tk8.4.7/unix/include
 TK_LIBRARY                       /home/larameer/tcl/tk8.4.7/unix/lib
 VTK_DATA_ROOT                    /home/larameer/evaluation/vtk/VTKData
 VTK_USE_HYBRID                   ON
 VTK_USE_PARALLEL                 ON
 VTK_USE_PATENTED                 ON
 VTK_USE_RENDERING                ON
 VTK_WRAP_JAVA                    OFF
 VTK_WRAP_PYTHON                  OFF
 VTK_WRAP_TCL                     ON

And ccmake generates the makefiles without
reporting any errors.  However, i get a problem
compiling the VTK.  It compiles for quite awhile,
(~15 minutes) and then run into the following
problem:

...
Building object file vtkPatentedInstantiator.o...
Building static library 
/home/larameer/evaluation/vtk/vtk-src-unix/bin/libvtkPatented.a.../home/larameer/evaluation/vtk/vtk-src-unix/Parallel: 
building default_target
Building dependencies. cmake.depends...
Building object file vtkBranchExtentTranslator.o...
Building object file vtkCollectPolyData.o...
Building object file vtkCommunicator.o...
Building object file vtkCompositeManager.o...

(more classes) ...

Building object file vtkTreeCompositer.o...
Building object file vtkSharedMemoryCommunicator.o...
Building object file vtkThreadedController.o...
Building object file vtkParallelInstantiator.o...
Building static library 
/home/larameer/evaluation/vtk/vtk-src-unix/bin/libvtkParallel.a.../home/larameer/evaluation/vtk/vtk-src-unix/Wrapping/Tcl: 
building default_target
Building dependencies. cmake.depends...
Building executable /home/larameer/evaluation/vtk/vtk-src-unix/bin/vtk...
/home/larameer/tcl/tcl8.4.7/unix/lib: file not recognized: Is a directory
collect2: ld returned 1 exit status
make[3]: *** [/home/larameer/evaluation/vtk/vtk-src-unix/bin/vtk] Error 1
make[2]: *** [default_target] Error 2
make[1]: *** [default_target_Wrapping_Tcl] Error 2
make: *** [default_target] Error 2
[larameer at lnxc25 vtk-src-unix]$

Any hints/suggestions would be greatly appreciated!

-cheers, bob

-- 
Robert S. Laramee
tel: +43 (316) 787-1740
fax: +43 (316) 787-777
http://www.VRVis.at/ar3/pr2/
John Kerry for President: http://www.johnkerry.com/


From massimo.ivani at mlsw.com  Thu Oct 28 10:20:00 2004
From: massimo.ivani at mlsw.com (Massimo Ivani)
Date: Thu, 28 Oct 2004 16:20:00 +0200
Subject: [vtkusers] Please Help : RayCast, MIP and Plane
Message-ID: <3hc759$qburc@mail-r2.cs.interbusiness.it>

Hello vtk Users,
 
I'm working with vtk 4.0 with CT images and using RayCasy or MIP functions
to create Volume Models. All is working well but if I add a plane or a
sphere to the scene using a texture on them, for example a bone texture of
cut plane, I get strange results when I rotate the model: cut plane
disappears, cut plane change dimension and so on. All is ok if I add a plane
to the scene with no texture on it. May be that is a bug of vtk 4.0???
 
Thank you for your help. 
 
Dr. Massimo Ivani
Media Lab Software
Ph. (+39) 0187517775
Fax (+39) 0187511833
 <mailto:massimo.ivani at mlsw.com> massimo.ivani at mlsw.com
 <http://www.mlsw.com> www.mlsw.com
 <http://www.implant3d.com> www.implant3d.com
 
 
 
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From stout.jeremy at gmail.com  Thu Oct 28 11:26:03 2004
From: stout.jeremy at gmail.com (Jeremy Stout)
Date: Thu, 28 Oct 2004 11:26:03 -0400
Subject: [vtkusers] Is vtkDistributedDataFilter put in the libvtkParallel.so
	library?
Message-ID: <a6bc6cc0410280826a5f24f5@mail.gmail.com>

Hello, I am working on a program that uses the
vtkDistributedDataFilter class. I can compile the program, but linking
phase fails. Here are the error messages I am receiving:

[stout at energy translator]$ g++ translator.cpp -otranslator
-I/usr/local/include/vtk -I/usr/local/packages/mpich/include
-L/usr/local/lib/vtk/ -lvtkCommon -lvtkDICOMParser -lvtkParallel
-lvtkIO -lvtkGraphics -lvtkFiltering -lvtkHybrid -lvtkImaging
-lvtkRendering -lvtkexpat -lvtkfreetype -lvtkftgl -lvtkjpeg -lvtkpng
-lvtktiff -lvtkzlib -L/usr/local/packages/mpich/lib -lmpich -ldl
-Wno-deprecated

tmp/ccQfSGzK.o(.text+0x21b): In function
`performTranslation(vtkDataSet*, char*, int, int, vtkMPIController*)':
: undefined reference to `vtkDistributedDataFilter::New()'
/tmp/ccQfSGzK.o(.text+0x246): In function
`performTranslation(vtkDataSet*, char*, int, int, vtkMPIController*)':
: undefined reference to
`vtkDistributedDataFilter::SetController(vtkMultiProcessController*)'
collect2: ld returned 1 exit status

Now, if I switch to the library and do a "nm" on it, this is what I get:

[stout at energy vtk]$ cd /usr/local/lib/vtk/
[stout at energy vtk]$ nm libvtkParallel.so| c++filt| grep vtkDistributedDataFilter
[stout at energy vtk]$ 

The vtkDistributedDataFilter is an essential part of my program and I
would prefer to use it over rolling my own implementation. I'm using
VTK4.4.

Any help in this matter would be greatly appreciated.

Jeremy Stout


From mathieu.malaterre at kitware.com  Thu Oct 28 11:26:52 2004
From: mathieu.malaterre at kitware.com (Mathieu Malaterre)
Date: Thu, 28 Oct 2004 11:26:52 -0400
Subject: [vtkusers] problems compiling VTK with Tcl/Tk
In-Reply-To: <20041028152052.A07F15B1E1@mail2.avl.com>
References: <20041028152052.A07F15B1E1@mail2.avl.com>
Message-ID: <41810FBC.5050204@kitware.com>

Robert,

Change

 >  TCL_LIBRARY                      /home/larameer/tcl/tcl8.4.7/unix/lib
 >  TK_LIBRARY                       /home/larameer/tcl/tk8.4.7/unix/lib

into

TCL_LIBRARY                    /home/larameer/tcl/tcl8.4.7/unix/lib/libtcl.a
TK_LIBRARY                    /home/larameer/tcl/tk8.4.7/unix/lib/libtk.a

(or .so)

HTH
Mathieu


Robert S Laramee wrote:
> Dear Fellow VTK Users,
> 
> i'm having a problem compiling the VTK with
> Tcl/Tk.  i can compile and run the demo
> programs just fine without Tcl/Tk.
> 
> i've downloaded and installed Tcl and
> Tk v 8.4.7.  i've run ccmake and added 
> the Tcl/Tk include directories as follows:
> 
>  BUILD_EXAMPLES                   ON
>  BUILD_SHARED_LIBS                OFF
>  CMAKE_BACKWARDS_COMPATIBILITY    1.6
>  CMAKE_BUILD_TYPE
>  CMAKE_INSTALL_PREFIX             /home/larameer/evaluation/vtk/vtk-src-unix
>  TCL_INCLUDE_PATH                 /home/larameer/tcl/tcl8.4.7/unix/include
>  TCL_LIBRARY                      /home/larameer/tcl/tcl8.4.7/unix/lib
>  TK_INCLUDE_PATH                  /home/larameer/tcl/tk8.4.7/unix/include
>  TK_LIBRARY                       /home/larameer/tcl/tk8.4.7/unix/lib
>  VTK_DATA_ROOT                    /home/larameer/evaluation/vtk/VTKData
>  VTK_USE_HYBRID                   ON
>  VTK_USE_PARALLEL                 ON
>  VTK_USE_PATENTED                 ON
>  VTK_USE_RENDERING                ON
>  VTK_WRAP_JAVA                    OFF
>  VTK_WRAP_PYTHON                  OFF
>  VTK_WRAP_TCL                     ON
> 
> And ccmake generates the makefiles without
> reporting any errors.  However, i get a problem
> compiling the VTK.  It compiles for quite awhile,
> (~15 minutes) and then run into the following
> problem:
> 
> ...
> Building object file vtkPatentedInstantiator.o...
> Building static library 
> /home/larameer/evaluation/vtk/vtk-src-unix/bin/libvtkPatented.a.../home/larameer/evaluation/vtk/vtk-src-unix/Parallel: 
> building default_target
> Building dependencies. cmake.depends...
> Building object file vtkBranchExtentTranslator.o...
> Building object file vtkCollectPolyData.o...
> Building object file vtkCommunicator.o...
> Building object file vtkCompositeManager.o...
> 
> (more classes) ...
> 
> Building object file vtkTreeCompositer.o...
> Building object file vtkSharedMemoryCommunicator.o...
> Building object file vtkThreadedController.o...
> Building object file vtkParallelInstantiator.o...
> Building static library 
> /home/larameer/evaluation/vtk/vtk-src-unix/bin/libvtkParallel.a.../home/larameer/evaluation/vtk/vtk-src-unix/Wrapping/Tcl: 
> building default_target
> Building dependencies. cmake.depends...
> Building executable /home/larameer/evaluation/vtk/vtk-src-unix/bin/vtk...
> /home/larameer/tcl/tcl8.4.7/unix/lib: file not recognized: Is a directory
> collect2: ld returned 1 exit status
> make[3]: *** [/home/larameer/evaluation/vtk/vtk-src-unix/bin/vtk] Error 1
> make[2]: *** [default_target] Error 2
> make[1]: *** [default_target_Wrapping_Tcl] Error 2
> make: *** [default_target] Error 2
> [larameer at lnxc25 vtk-src-unix]$
> 
> Any hints/suggestions would be greatly appreciated!
> 
> -cheers, bob
> 





From wyssa1 at hta-bi.bfh.ch  Thu Oct 28 11:34:28 2004
From: wyssa1 at hta-bi.bfh.ch (Adrian Wyssmann)
Date: Thu, 28 Oct 2004 17:34:28 +0200
Subject: [vtkusers] vtkImagePlaneWidget problem on vtkImageData (C++)
In-Reply-To: <mailman.0.1098976223.2756.vtkusers@vtk.org>
Message-ID: <200410281534.i9SFYSDj025497@service7.hta-bi.bfh.ch>

Hello

I have a simple 2D-image (vtkImageData). I want to be able to change the
window-level by the mouse. So I used a vtkImagePlaneWidget, which implements
that. Actual it works, but not as expected:
The widget seems to be like a fog over the image. Some pixels habe the
original color, others have been set to black. If I turn the widget by one
of it's margins, I see again the proper image.

vtkImageData* myImageData;
vtkImagePlaneWidget* = myImagePlaneWidget;
vtkLookupTable* = myLookupTable;

//initialization ...

myImagePlaneWidget->SetInput(myImageData);
myImagePlaneWidget->SetPlaneOrientation(2); //Z-Axe
myImagePlaneWidget->On();
myImagePlaneWidget->SetSlicePosition(0);
myImagePlaneWidget->GetLookuptable()->DeepCopy(myLookupTable);

//more code ...

Can anybody help?

Thanks

Adrian







From mathieu.malaterre at kitware.com  Thu Oct 28 11:36:22 2004
From: mathieu.malaterre at kitware.com (Mathieu Malaterre)
Date: Thu, 28 Oct 2004 11:36:22 -0400
Subject: [vtkusers] Is vtkDistributedDataFilter put in the
	libvtkParallel.so library?
In-Reply-To: <a6bc6cc0410280826a5f24f5@mail.gmail.com>
References: <a6bc6cc0410280826a5f24f5@mail.gmail.com>
Message-ID: <418111F6.3000807@kitware.com>

Jeremy,

	You need MPI to use this class. I you do, then turn VTK_USE_MPI ON with 
cmake. If cmake doesn't find the lib, you need to specify it explicitely 
in the cmake cache entries.

HTH
Mathieu

Jeremy Stout wrote:
> Hello, I am working on a program that uses the
> vtkDistributedDataFilter class. I can compile the program, but linking
> phase fails. Here are the error messages I am receiving:
> 
> [stout at energy translator]$ g++ translator.cpp -otranslator
> -I/usr/local/include/vtk -I/usr/local/packages/mpich/include
> -L/usr/local/lib/vtk/ -lvtkCommon -lvtkDICOMParser -lvtkParallel
> -lvtkIO -lvtkGraphics -lvtkFiltering -lvtkHybrid -lvtkImaging
> -lvtkRendering -lvtkexpat -lvtkfreetype -lvtkftgl -lvtkjpeg -lvtkpng
> -lvtktiff -lvtkzlib -L/usr/local/packages/mpich/lib -lmpich -ldl
> -Wno-deprecated
> 
> tmp/ccQfSGzK.o(.text+0x21b): In function
> `performTranslation(vtkDataSet*, char*, int, int, vtkMPIController*)':
> : undefined reference to `vtkDistributedDataFilter::New()'
> /tmp/ccQfSGzK.o(.text+0x246): In function
> `performTranslation(vtkDataSet*, char*, int, int, vtkMPIController*)':
> : undefined reference to
> `vtkDistributedDataFilter::SetController(vtkMultiProcessController*)'
> collect2: ld returned 1 exit status
> 
> Now, if I switch to the library and do a "nm" on it, this is what I get:
> 
> [stout at energy vtk]$ cd /usr/local/lib/vtk/
> [stout at energy vtk]$ nm libvtkParallel.so| c++filt| grep vtkDistributedDataFilter
> [stout at energy vtk]$ 
> 
> The vtkDistributedDataFilter is an essential part of my program and I
> would prefer to use it over rolling my own implementation. I'm using
> VTK4.4.
> 
> Any help in this matter would be greatly appreciated.
> 
> Jeremy Stout
> _______________________________________________
> This is the private VTK discussion list. 
> Please keep messages on-topic. Check the FAQ at: <http://public.kitware.com/cgi-bin/vtkfaq>
> Follow this link to subscribe/unsubscribe:
> http://www.vtk.org/mailman/listinfo/vtkusers
> 





From burlen at apollo.sr.unh.edu  Thu Oct 28 11:40:23 2004
From: burlen at apollo.sr.unh.edu (Burlen Loring)
Date: Thu, 28 Oct 2004 11:40:23 -0400
Subject: [vtkusers] problems compiling VTK with Tcl/Tk
In-Reply-To: <20041028152052.A07F15B1E1@mail2.avl.com>
References: <20041028152052.A07F15B1E1@mail2.avl.com>
Message-ID: <200410281140.23776.burlen@apollo.sr.unh.edu>

going through this myself...
I think you need to include the file name and the path and the error will go 
away.

On Thursday 28 October 2004 11:20, Robert S Laramee wrote:
> Dear Fellow VTK Users,
>
> i'm having a problem compiling the VTK with
> Tcl/Tk.  i can compile and run the demo
> programs just fine without Tcl/Tk.
>
> i've downloaded and installed Tcl and
> Tk v 8.4.7.  i've run ccmake and added
> the Tcl/Tk include directories as follows:
>
>  BUILD_EXAMPLES                   ON
>  BUILD_SHARED_LIBS                OFF
>  CMAKE_BACKWARDS_COMPATIBILITY    1.6
>  CMAKE_BUILD_TYPE
>  CMAKE_INSTALL_PREFIX            
> /home/larameer/evaluation/vtk/vtk-src-unix TCL_INCLUDE_PATH                
> /home/larameer/tcl/tcl8.4.7/unix/include TCL_LIBRARY                     
> /home/larameer/tcl/tcl8.4.7/unix/lib TK_INCLUDE_PATH                 
> /home/larameer/tcl/tk8.4.7/unix/include TK_LIBRARY                      
> /home/larameer/tcl/tk8.4.7/unix/lib VTK_DATA_ROOT                   
> /home/larameer/evaluation/vtk/VTKData VTK_USE_HYBRID                   ON
>  VTK_USE_PARALLEL                 ON
>  VTK_USE_PATENTED                 ON
>  VTK_USE_RENDERING                ON
>  VTK_WRAP_JAVA                    OFF
>  VTK_WRAP_PYTHON                  OFF
>  VTK_WRAP_TCL                     ON
>
> And ccmake generates the makefiles without
> reporting any errors.  However, i get a problem
> compiling the VTK.  It compiles for quite awhile,
> (~15 minutes) and then run into the following
> problem:
>
> ...
> Building object file vtkPatentedInstantiator.o...
> Building static library
> /home/larameer/evaluation/vtk/vtk-src-unix/bin/libvtkPatented.a.../home/lar
>ameer/evaluation/vtk/vtk-src-unix/Parallel: building default_target
> Building dependencies. cmake.depends...
> Building object file vtkBranchExtentTranslator.o...
> Building object file vtkCollectPolyData.o...
> Building object file vtkCommunicator.o...
> Building object file vtkCompositeManager.o...
>
> (more classes) ...
>
> Building object file vtkTreeCompositer.o...
> Building object file vtkSharedMemoryCommunicator.o...
> Building object file vtkThreadedController.o...
> Building object file vtkParallelInstantiator.o...
> Building static library
> /home/larameer/evaluation/vtk/vtk-src-unix/bin/libvtkParallel.a.../home/lar
>ameer/evaluation/vtk/vtk-src-unix/Wrapping/Tcl: building default_target
> Building dependencies. cmake.depends...
> Building executable /home/larameer/evaluation/vtk/vtk-src-unix/bin/vtk...
> /home/larameer/tcl/tcl8.4.7/unix/lib: file not recognized: Is a directory
> collect2: ld returned 1 exit status
> make[3]: *** [/home/larameer/evaluation/vtk/vtk-src-unix/bin/vtk] Error 1
> make[2]: *** [default_target] Error 2
> make[1]: *** [default_target_Wrapping_Tcl] Error 2
> make: *** [default_target] Error 2
> [larameer at lnxc25 vtk-src-unix]$
>
> Any hints/suggestions would be greatly appreciated!
>
> -cheers, bob


From stout.jeremy at gmail.com  Thu Oct 28 12:27:35 2004
From: stout.jeremy at gmail.com (Jeremy Stout)
Date: Thu, 28 Oct 2004 12:27:35 -0400
Subject: [vtkusers] Is vtkDistributedDataFilter put in the
	libvtkParallel.so library?
In-Reply-To: <418111F6.3000807@kitware.com>
References: <a6bc6cc0410280826a5f24f5@mail.gmail.com>
	<418111F6.3000807@kitware.com>
Message-ID: <a6bc6cc041028092759d48d33@mail.gmail.com>

Hello, MPI is installed and that particular switch was turned on when
I was compiling VTK.  I've been able to compile and link other
programs that use MPI specific vtk classes (such as vtkMPIController
and vtkMPICommunicator) without any problems.

Jeremy Stout


On Thu, 28 Oct 2004 11:36:22 -0400, Mathieu Malaterre
<mathieu.malaterre at kitware.com> wrote:
> Jeremy,
> 
>        You need MPI to use this class. I you do, then turn VTK_USE_MPI ON with
> cmake. If cmake doesn't find the lib, you need to specify it explicitely
> in the cmake cache entries.
> 
> HTH
> Mathieu
> 
> 
> 
> Jeremy Stout wrote:
> > Hello, I am working on a program that uses the
> > vtkDistributedDataFilter class. I can compile the program, but linking
> > phase fails. Here are the error messages I am receiving:
> >
> > [stout at energy translator]$ g++ translator.cpp -otranslator
> > -I/usr/local/include/vtk -I/usr/local/packages/mpich/include
> > -L/usr/local/lib/vtk/ -lvtkCommon -lvtkDICOMParser -lvtkParallel
> > -lvtkIO -lvtkGraphics -lvtkFiltering -lvtkHybrid -lvtkImaging
> > -lvtkRendering -lvtkexpat -lvtkfreetype -lvtkftgl -lvtkjpeg -lvtkpng
> > -lvtktiff -lvtkzlib -L/usr/local/packages/mpich/lib -lmpich -ldl
> > -Wno-deprecated
> >
> > tmp/ccQfSGzK.o(.text+0x21b): In function
> > `performTranslation(vtkDataSet*, char*, int, int, vtkMPIController*)':
> > : undefined reference to `vtkDistributedDataFilter::New()'
> > /tmp/ccQfSGzK.o(.text+0x246): In function
> > `performTranslation(vtkDataSet*, char*, int, int, vtkMPIController*)':
> > : undefined reference to
> > `vtkDistributedDataFilter::SetController(vtkMultiProcessController*)'
> > collect2: ld returned 1 exit status
> >
> > Now, if I switch to the library and do a "nm" on it, this is what I get:
> >
> > [stout at energy vtk]$ cd /usr/local/lib/vtk/
> > [stout at energy vtk]$ nm libvtkParallel.so| c++filt| grep vtkDistributedDataFilter
> > [stout at energy vtk]$
> >
> > The vtkDistributedDataFilter is an essential part of my program and I
> > would prefer to use it over rolling my own implementation. I'm using
> > VTK4.4.
> >
> > Any help in this matter would be greatly appreciated.
> >
> > Jeremy Stout
> > _______________________________________________
> > This is the private VTK discussion list.
> > Please keep messages on-topic. Check the FAQ at: <http://public.kitware.com/cgi-bin/vtkfaq>
> > Follow this link to subscribe/unsubscribe:
> > http://www.vtk.org/mailman/listinfo/vtkusers
> >
> 
>


From mathieu.malaterre at kitware.com  Thu Oct 28 12:46:22 2004
From: mathieu.malaterre at kitware.com (Mathieu Malaterre)
Date: Thu, 28 Oct 2004 12:46:22 -0400
Subject: [vtkusers] Is vtkDistributedDataFilter put in the
	libvtkParallel.so library?
In-Reply-To: <a6bc6cc041028092759d48d33@mail.gmail.com>
References: <a6bc6cc0410280826a5f24f5@mail.gmail.com>	
	<418111F6.3000807@kitware.com>
	<a6bc6cc041028092759d48d33@mail.gmail.com>
Message-ID: <4181225E.1040005@kitware.com>

Jeremy,

	My mistake the filter is recent. So it din't made into 4.4. You have 
two options:

- stick to 4.4, and copy/paste only this class from CVS into your VTK 
directory. Recompile

- Use CVS

HTH
Mathieu


Jeremy Stout wrote:
> Hello, MPI is installed and that particular switch was turned on when
> I was compiling VTK.  I've been able to compile and link other
> programs that use MPI specific vtk classes (such as vtkMPIController
> and vtkMPICommunicator) without any problems.
> 
> Jeremy Stout
> 
> 
> On Thu, 28 Oct 2004 11:36:22 -0400, Mathieu Malaterre
> <mathieu.malaterre at kitware.com> wrote:
> 
>>Jeremy,
>>
>>       You need MPI to use this class. I you do, then turn VTK_USE_MPI ON with
>>cmake. If cmake doesn't find the lib, you need to specify it explicitely
>>in the cmake cache entries.
>>
>>HTH
>>Mathieu
>>
>>
>>
>>Jeremy Stout wrote:
>>
>>>Hello, I am working on a program that uses the
>>>vtkDistributedDataFilter class. I can compile the program, but linking
>>>phase fails. Here are the error messages I am receiving:
>>>
>>>[stout at energy translator]$ g++ translator.cpp -otranslator
>>>-I/usr/local/include/vtk -I/usr/local/packages/mpich/include
>>>-L/usr/local/lib/vtk/ -lvtkCommon -lvtkDICOMParser -lvtkParallel
>>>-lvtkIO -lvtkGraphics -lvtkFiltering -lvtkHybrid -lvtkImaging
>>>-lvtkRendering -lvtkexpat -lvtkfreetype -lvtkftgl -lvtkjpeg -lvtkpng
>>>-lvtktiff -lvtkzlib -L/usr/local/packages/mpich/lib -lmpich -ldl
>>>-Wno-deprecated
>>>
>>>tmp/ccQfSGzK.o(.text+0x21b): In function
>>>`performTranslation(vtkDataSet*, char*, int, int, vtkMPIController*)':
>>>: undefined reference to `vtkDistributedDataFilter::New()'
>>>/tmp/ccQfSGzK.o(.text+0x246): In function
>>>`performTranslation(vtkDataSet*, char*, int, int, vtkMPIController*)':
>>>: undefined reference to
>>>`vtkDistributedDataFilter::SetController(vtkMultiProcessController*)'
>>>collect2: ld returned 1 exit status
>>>
>>>Now, if I switch to the library and do a "nm" on it, this is what I get:
>>>
>>>[stout at energy vtk]$ cd /usr/local/lib/vtk/
>>>[stout at energy vtk]$ nm libvtkParallel.so| c++filt| grep vtkDistributedDataFilter
>>>[stout at energy vtk]$
>>>
>>>The vtkDistributedDataFilter is an essential part of my program and I
>>>would prefer to use it over rolling my own implementation. I'm using
>>>VTK4.4.
>>>
>>>Any help in this matter would be greatly appreciated.
>>>
>>>Jeremy Stout
>>>_______________________________________________
>>>This is the private VTK discussion list.
>>>Please keep messages on-topic. Check the FAQ at: <http://public.kitware.com/cgi-bin/vtkfaq>
>>>Follow this link to subscribe/unsubscribe:
>>>http://www.vtk.org/mailman/listinfo/vtkusers
>>>
>>
>>
> 





From hvidal at tesseract-tech.com  Thu Oct 28 13:31:59 2004
From: hvidal at tesseract-tech.com (H.Vidal, Jr.)
Date: Thu, 28 Oct 2004 13:31:59 -0400
Subject: [vtkusers] potentially useful page of links
Message-ID: <41812D0F.7040206@tesseract-tech.com>

Hello. I have set up a page of VTK related links, and am starting a 
small series
of related tutorials. Thought that this might be of use.

Criticisms welcome, as are other useful links.

http://www.tesseract-tech.com/tech/projects/vtk/index.html

Hernando Vidal, Jr.
Tesseract Technology

Oh, an in case you're into XVideo (the programming/display kind....)

http://www.tesseract-tech.com/tech/projects/xvideo/index.html




From dean.inglis at camris.ca  Thu Oct 28 13:22:07 2004
From: dean.inglis at camris.ca (Dean Inglis)
Date: Thu, 28 Oct 2004 13:22:07 -0400
Subject: [vtkusers] Re: vtkImagePlaneWidget problem on vtkImageData (C++)
Message-ID: <FBEIKIAGJCCFIBIPBIGMOEIACDAA.dean.inglis@camris.ca>

Adrian,

tyry using class vtkImageViewer2, as it was meant for 2D image display
and has built in window-level functionality controlled by the mouse.
vtkImagePlaneWidget is really designed to work with 3D image data.

Dean


I have a simple 2D-image (vtkImageData). I want to be able to change the
window-level by the mouse. So I used a vtkImagePlaneWidget, which implements
that. Actual it works, but not as expected:
The widget seems to be like a fog over the image. Some pixels habe the
original color, others have been set to black. If I turn the widget by one
of it's margins, I see again the proper image.

vtkImageData* myImageData;
vtkImagePlaneWidget* = myImagePlaneWidget;
vtkLookupTable* = myLookupTable;

//initialization ...

myImagePlaneWidget->SetInput(myImageData);
myImagePlaneWidget->SetPlaneOrientation(2); //Z-Axe
myImagePlaneWidget->On();
myImagePlaneWidget->SetSlicePosition(0);
myImagePlaneWidget->GetLookuptable()->DeepCopy(myLookupTable);

//more code ...

Can anybody help?

Thanks

Adrian




From goodwin.lawlor at ucd.ie  Thu Oct 28 13:29:42 2004
From: goodwin.lawlor at ucd.ie (Goodwin Lawlor)
Date: Thu, 28 Oct 2004 18:29:42 +0100
Subject: [vtkusers] Re: Color Filter(Human Visible Project)
References: <1098973955.5810.75.camel@linux.site>
Message-ID: <clraa6$bkk$1@sea.gmane.org>

Hi Nathaniel,

Try thesholding the blue channel to create a mask.

hth

Goodwin

"Nathaniel Gonzalez" <ngonzalez at rcm.upr.edu> wrote in message
news:1098973955.5810.75.camel at linux.site...
> Hi,
>
> I'm currently working on a simple application to display the Visible
> Human Data and then add a little more information to the image. I'm
> having problems removing the blue gel from the images. I think that
> vtk can do it but I don't know how. Many people have process the images
> before loading them in vtk. In the web page of Steven Matuszek he says
>
> "In Making use of the fact that little or none of the human body is
> green, blue or magenta, this filter simply replaces with black any pixel
> whose blue value is more than 1.2 times the red and green values"
>
>
> If anyone knows how to do this in vtk or in a pre-process script and can
> point me in the right direction It would be of a lot of help.
>
> Thanks
>
>
> Nathaniel Gonzalez
> RCMI-CIAR
> Medical Science Campus
> University of Puerto Rico
>
> _______________________________________________
> This is the private VTK discussion list.
> Please keep messages on-topic. Check the FAQ at:
<http://public.kitware.com/cgi-bin/vtkfaq>
> Follow this link to subscribe/unsubscribe:
> http://www.vtk.org/mailman/listinfo/vtkusers
>





From goodwin.lawlor at ucd.ie  Thu Oct 28 13:41:42 2004
From: goodwin.lawlor at ucd.ie (Goodwin Lawlor)
Date: Thu, 28 Oct 2004 18:41:42 +0100
Subject: [vtkusers] Re: potentially useful page of links
References: <41812D0F.7040206@tesseract-tech.com>
Message-ID: <clrb0n$dov$1@sea.gmane.org>

Hi Hernando,

You could add your links here: http://www.vtk.org/Wiki/VTK_Tools or here:
http://www.vtk.org/Wiki/VTK_Scripts

or start up your own wiki links page, maybe here:
http://www.vtk.org/Wiki/VTK_Links

Just a suggestion- if there is a wiki available, its a shame not to use it.

Goodwin

"H.Vidal, Jr." <hvidal at tesseract-tech.com> wrote in message
news:41812D0F.7040206 at tesseract-tech.com...
> Hello. I have set up a page of VTK related links, and am starting a
> small series
> of related tutorials. Thought that this might be of use.
>
> Criticisms welcome, as are other useful links.
>
> http://www.tesseract-tech.com/tech/projects/vtk/index.html
>
> Hernando Vidal, Jr.
> Tesseract Technology
>
> Oh, an in case you're into XVideo (the programming/display kind....)
>
> http://www.tesseract-tech.com/tech/projects/xvideo/index.html
>
>
> _______________________________________________
> This is the private VTK discussion list.
> Please keep messages on-topic. Check the FAQ at:
<http://public.kitware.com/cgi-bin/vtkfaq>
> Follow this link to subscribe/unsubscribe:
> http://www.vtk.org/mailman/listinfo/vtkusers
>





From goodwin.lawlor at ucd.ie  Thu Oct 28 13:43:56 2004
From: goodwin.lawlor at ucd.ie (Goodwin Lawlor)
Date: Thu, 28 Oct 2004 18:43:56 +0100
Subject: [vtkusers] Re: Connected component labeling with VTK
References: <freemail.20040928130455.41365@fm13.freemail.hu>
Message-ID: <clrb4t$e6s$1@sea.gmane.org>

Hi Michnay,

How about vtkConnectivityFilter or vtkPolyDataConnectivityFilter

hth

Goodwin

"Michnay Bal?zs" <michnay at freemail.hu> wrote in message
news:freemail.20040928130455.41365 at fm13.freemail.hu...
> Hi all,
> Is there a way to perform connected component labeling with VTK or do
> I need to write my own function?
> Thanks,
>  MB
> _______________________________________________
> This is the private VTK discussion list.
> Please keep messages on-topic. Check the FAQ at:
<http://public.kitware.com/cgi-bin/vtkfaq>
> Follow this link to subscribe/unsubscribe:
> http://www.vtk.org/mailman/listinfo/vtkusers
>





From peng-cheng at uiowa.edu  Thu Oct 28 18:51:34 2004
From: peng-cheng at uiowa.edu (Peng (Patrick) Cheng)
Date: Thu, 28 Oct 2004 16:51:34 -0600
Subject: [vtkusers] How to write multiple vtkPolyData into on single XML file
Message-ID: <418177F6.8050800@uiowa.edu>

hi all,

I have hundreds of vtkPolyData in a list need to be output to a XML 
file, and later on read back. each of them is a line with a points and a 
scalars. I was just wondering is it possible to write all these data 
into  one XML file with current vtkXMLWriter? or do I have to output one 
file for each vtkPolyData?

Patrick
-- 

Peng (Patrick) Cheng
Research Assistant
Radiology, Magnetic Resonance Imaging (MRI) Center
University of Iowa Hospital and Clinics
Iowa City, IA 52246

Office:  0453-E JCP
Phone:   (319)356-7808 (O)
          (319)400-7442 (C)
Email:   peng-cheng at uiowa.edu
Website: http://css.engineering.uiowa.edu/~pcheng/





From goodwin.lawlor at ucd.ie  Thu Oct 28 20:10:54 2004
From: goodwin.lawlor at ucd.ie (Goodwin Lawlor)
Date: Fri, 29 Oct 2004 01:10:54 +0100
Subject: [vtkusers] Re: How to write multiple vtkPolyData into on single XML
	file
References: <418177F6.8050800@uiowa.edu>
Message-ID: <cls1qf$be0$1@sea.gmane.org>

Hi Patrick,

Use vtkAppendPolyData to append all your polydatas into one, then write this
appended polydata out using vtkXMLWriter.

hth

Goodwin

"Peng (Patrick) Cheng" <peng-cheng at uiowa.edu> wrote in message
news:418177F6.8050800 at uiowa.edu...
> hi all,
>
> I have hundreds of vtkPolyData in a list need to be output to a XML
> file, and later on read back. each of them is a line with a points and a
> scalars. I was just wondering is it possible to write all these data
> into  one XML file with current vtkXMLWriter? or do I have to output one
> file for each vtkPolyData?
>
> Patrick
> -- 
>
> Peng (Patrick) Cheng
> Research Assistant
> Radiology, Magnetic Resonance Imaging (MRI) Center
> University of Iowa Hospital and Clinics
> Iowa City, IA 52246
>
> Office:  0453-E JCP
> Phone:   (319)356-7808 (O)
>           (319)400-7442 (C)
> Email:   peng-cheng at uiowa.edu
> Website: http://css.engineering.uiowa.edu/~pcheng/
>
>
>
> _______________________________________________
> This is the private VTK discussion list.
> Please keep messages on-topic. Check the FAQ at:
<http://public.kitware.com/cgi-bin/vtkfaq>
> Follow this link to subscribe/unsubscribe:
> http://www.vtk.org/mailman/listinfo/vtkusers
>





From beau.sapach at ualberta.ca  Fri Oct 29 01:13:41 2004
From: beau.sapach at ualberta.ca (Beau Sapach)
Date: Thu, 28 Oct 2004 23:13:41 -0600
Subject: [vtkusers] Help with picking please!
Message-ID: <1099026821.4181d1850e6bc@webmail.bme.med.ualberta.ca>

Hi everyone,  I've been beating my head against the wall with this... Anyone 
know why (in the following code) pick operation #2 works?  Even though the 
actor is NOT using that point?

Beau

	vtkBMPReader * bmpread = vtkBMPReader::New();
	vtkRenderWindow * renwin = vtkRenderWindow::New();
	vtkRenderer * ren = vtkRenderer::New();
	vtkImageMapper * mapper = vtkImageMapper::New();
	vtkActor2D * actor = vtkActor2D::New();

	bmpread->SetFileName("d:\\blah.bmp");
	mapper->SetInput(bmpread->GetOutput());
	actor->SetMapper(mapper);
	ren->AddActor2D(actor);
	// offset the actor's position so that
	// a pick with x or y < 12 should not work...
	actor->SetDisplayPosition(12,12);
	renwin->AddRenderer(ren);
	renwin->SetSize(1000,500);
	renwin->Render();
	double x,y;

        // PICK #1
	// First try picking something that's obviously
	// outside of the image bounds
	x=990; y=499;
	int r = 0;
	vtkPropPicker * picker = vtkPropPicker::New();
	r = picker->Pick(x,y,0,ren);
	if(r==1){AfxMessageBox("success");}
	
        // PICK #2
        // Again pick a point that the image is not
	// using ( less than 12! )
	x=y=10;
	r = picker->Pick(x,y,0,ren);
	if(r==1){AfxMessageBox("success");}	



From sscomp2004 at yahoo.com.au  Fri Oct 29 02:48:03 2004
From: sscomp2004 at yahoo.com.au (s comp)
Date: Fri, 29 Oct 2004 16:48:03 +1000 (EST)
Subject: [vtkusers] Is there a tutorial or guide,
	for producing animations with vtk?
Message-ID: <20041029064803.37286.qmail@web61110.mail.yahoo.com>

Is there a tutorial or guide, for producing animations with vtk?
 
Sonam



---------------------------------
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From wyssa1 at hta-bi.bfh.ch  Fri Oct 29 03:06:42 2004
From: wyssa1 at hta-bi.bfh.ch (Adrian Wyssmann)
Date: Fri, 29 Oct 2004 09:06:42 +0200
Subject: [vtkusers] Re: vtkImagePlaneWidget problem on vtkImageData (C++)
In-Reply-To: <FBEIKIAGJCCFIBIPBIGMOEIACDAA.dean.inglis@camris.ca>
Message-ID: <200410290706.i9T76iDj009285@service7.hta-bi.bfh.ch>

In the line of the declaration of vtkImageViewer2 I get the compile error
(using VS6):
vtkImageViewer2* pMyImageViewer2; //c2143 sytnax error: missing ";" before
'*'

Adrian

-----Original Message-----
From: vtkusers-bounces at vtk.org [mailto:vtkusers-bounces at vtk.org] On Behalf
Of Dean Inglis
Sent: Donnerstag, 28. Oktober 2004 19:22
To: vtkusers archive
Subject: [vtkusers] Re: vtkImagePlaneWidget problem on vtkImageData (C++)

Adrian,

tyry using class vtkImageViewer2, as it was meant for 2D image display and
has built in window-level functionality controlled by the mouse.
vtkImagePlaneWidget is really designed to work with 3D image data.

Dean


I have a simple 2D-image (vtkImageData). I want to be able to change the
window-level by the mouse. So I used a vtkImagePlaneWidget, which implements
that. Actual it works, but not as expected:
The widget seems to be like a fog over the image. Some pixels habe the
original color, others have been set to black. If I turn the widget by one
of it's margins, I see again the proper image.

vtkImageData* myImageData;
vtkImagePlaneWidget* = myImagePlaneWidget;
vtkLookupTable* = myLookupTable;

//initialization ...

myImagePlaneWidget->SetInput(myImageData);
myImagePlaneWidget->SetPlaneOrientation(2); //Z-Axe On(); 
myImagePlaneWidget->SetSlicePosition(0);
myImagePlaneWidget->GetLookuptable()->DeepCopy(myLookupTable);

//more code ...

Can anybody help?

Thanks

Adrian


_______________________________________________
This is the private VTK discussion list. 
Please keep messages on-topic. Check the FAQ at:
<http://public.kitware.com/cgi-bin/vtkfaq>
Follow this link to subscribe/unsubscribe:
http://www.vtk.org/mailman/listinfo/vtkusers




From neelam at apvindia.com  Fri Oct 29 03:35:57 2004
From: neelam at apvindia.com (neelam)
Date: Fri, 29 Oct 2004 13:05:57 +0530
Subject: [vtkusers] Query Related To useability of vtk in c#
Message-ID: <200410290730.NAA24089@pr10.indiatimes.com>



Hi vtk users ,
  can any one tell wether iit is posible to use vtk in c# language
  please reply soon if any answer
 thanks in advance
Regards 
Neelam



From arbvtk at yahoo.fr  Fri Oct 29 05:33:47 2004
From: arbvtk at yahoo.fr (=?iso-8859-1?q?REGAT-BARREL=20Aur=E9lien?=)
Date: Fri, 29 Oct 2004 11:33:47 +0200 (CEST)
Subject: [vtkusers] Query Related To useability of vtk in c#
In-Reply-To: <200410290730.NAA24089@pr10.indiatimes.com>
Message-ID: <20041029093347.14406.qmail@web25210.mail.ukl.yahoo.com>

Hi,
Last year we successfully used this wrapper :
http://herakles.zcu.cz/research/vtk.net/
Greets.

neelam <neelam at apvindia.com> wrote:
Hi vtk users ,
can any one tell wether iit is posible to use vtk in c# language
please reply soon if any answer
thanks in advance
Regards 
Neelam

_______________________________________________
This is the private VTK discussion list. 
Please keep messages on-topic. Check the FAQ at: 
Follow this link to subscribe/unsubscribe:
http://www.vtk.org/mailman/listinfo/vtkusers


Aur?lien REGAT-BARREL 
My VTK blog : http://aurelien_regat-barrel.blogspot.com


		
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From Markus.Erbacher at gmx.de  Fri Oct 29 06:27:05 2004
From: Markus.Erbacher at gmx.de (Markus Erbacher)
Date: Fri, 29 Oct 2004 12:27:05 +0200 (MEST)
Subject: [vtkusers] Playing a sequence of images
Message-ID: <17620.1099045625@www13.gmx.net>

Hi,
I am trying to play an sequence of images. I have all those images as slices
in an vtkImageData. If I play the sequence from the mainthread, the whole
application is frozen till the sequence ends. So I tried to play it in a
different thread. If I do so, I always recieve that Error:

ERROR: In \Programme\Vtk\Rendering\vtkWin32OpenGLRenderWindow.cxx, line 228
vtkWin32OpenGLRenderWindow (06A6D028): wglMakeCurrent failed in
MakeCurrent(), error: Die angeforderte Ressource wird bereits verwendet.

Although that error occurs, the changes in the scene are made. But they are
not rendered.

How can I get the Renderer to rerender the scene? Is there a way without
using Render() (because of the error)?
Or even better: Is their in VTK a possibility to play sequences a other way?

Thanks in advance

Regards
Markus

-- 
NEU +++ DSL Komplett von GMX +++ http://www.gmx.net/de/go/dsl
GMX DSL-Netzanschluss + Tarif zum superg?nstigen Komplett-Preis!



From sergio at unizar.es  Fri Oct 29 06:49:02 2004
From: sergio at unizar.es (Sergio Andres)
Date: Fri, 29 Oct 2004 12:49:02 +0200
Subject: [vtkusers] vtkImageResample and extents
Message-ID: <4182201E.60605@unizar.es>

Hi all,

I have a problem with vtkImageResample.
First I use vtkImageResample to generate a new image with a given 
magnification factor.
Then I change set a smaller magnification factor, and a vtkOutputWindow 
comes up with the message:

"Update extent does not lie within whole extent"
The update extent is 0,1008,0,1008,0,0, whereas the whole extent 0, 
504,0,504,0,0.

My code is the following:

   this->filter->SetAxisMagnificationFactor(0, factor);
    this->filter->SetAxisMagnificationFactor(1, factor);
    this->filter->SetDimensionality(2);
    this->filter->SetOutputExtent(0, imageWidth - 1,
                                    0, imageHeight - 1,
                                    0, 0);
    this->filter->Update();

The output of this filter goes to a vtkImageMapper.

I don't know what happens. I would appreciate any help.
Thank you!

Sergio.



From luca.picello at libero.it  Fri Oct 29 06:57:42 2004
From: luca.picello at libero.it (Luca Picello)
Date: Fri, 29 Oct 2004 12:57:42 +0200
Subject: [vtkusers] Re: vtkImagePlaneWidget problem on vtkImageData (C++)
In-Reply-To: <200410290706.i9T76iDj009285@service7.hta-bi.bfh.ch>
References: <200410290706.i9T76iDj009285@service7.hta-bi.bfh.ch>
Message-ID: <41822226.7070101@libero.it>


Not sure but usually you obtain this error with VS6 compiler when the 
declaration for vtkImageViewer2 is missing.
Check you have #include "vtkImageViewer2.h" in your sources.

Bye,
Luca




Adrian Wyssmann wrote:

>In the line of the declaration of vtkImageViewer2 I get the compile error
>(using VS6):
>vtkImageViewer2* pMyImageViewer2; //c2143 sytnax error: missing ";" before
>'*'
>
>Adrian
>
>-----Original Message-----
>From: vtkusers-bounces at vtk.org [mailto:vtkusers-bounces at vtk.org] On Behalf
>Of Dean Inglis
>Sent: Donnerstag, 28. Oktober 2004 19:22
>To: vtkusers archive
>Subject: [vtkusers] Re: vtkImagePlaneWidget problem on vtkImageData (C++)
>
>Adrian,
>
>tyry using class vtkImageViewer2, as it was meant for 2D image display and
>has built in window-level functionality controlled by the mouse.
>vtkImagePlaneWidget is really designed to work with 3D image data.
>
>Dean
>
>
>I have a simple 2D-image (vtkImageData). I want to be able to change the
>window-level by the mouse. So I used a vtkImagePlaneWidget, which implements
>that. Actual it works, but not as expected:
>The widget seems to be like a fog over the image. Some pixels habe the
>original color, others have been set to black. If I turn the widget by one
>of it's margins, I see again the proper image.
>
>vtkImageData* myImageData;
>vtkImagePlaneWidget* = myImagePlaneWidget;
>vtkLookupTable* = myLookupTable;
>
>//initialization ...
>
>myImagePlaneWidget->SetInput(myImageData);
>myImagePlaneWidget->SetPlaneOrientation(2); //Z-Axe On(); 
>myImagePlaneWidget->SetSlicePosition(0);
>myImagePlaneWidget->GetLookuptable()->DeepCopy(myLookupTable);
>
>//more code ...
>
>Can anybody help?
>
>Thanks
>
>Adrian
>
>
>_______________________________________________
>This is the private VTK discussion list. 
>Please keep messages on-topic. Check the FAQ at:
><http://public.kitware.com/cgi-bin/vtkfaq>
>Follow this link to subscribe/unsubscribe:
>http://www.vtk.org/mailman/listinfo/vtkusers
>
>
>_______________________________________________
>This is the private VTK discussion list. 
>Please keep messages on-topic. Check the FAQ at: <http://public.kitware.com/cgi-bin/vtkfaq>
>Follow this link to subscribe/unsubscribe:
>http://www.vtk.org/mailman/listinfo/vtkusers
>.
>
>  
>



From laramee at vrvis.at  Fri Oct 29 09:21:46 2004
From: laramee at vrvis.at (Robert S Laramee)
Date: Fri, 29 Oct 2004 15:21:46 +0200
Subject: [vtkusers] problems compiling VTK with Tcl/Tk
In-Reply-To: <41810FBC.5050204@kitware.com>
References: <20041028152052.A07F15B1E1@mail2.avl.com>
	<41810FBC.5050204@kitware.com>
Message-ID: <20041029132146.829665B1B4@mail2.avl.com>

Dear Mathieu and Fellow VTK Users,

Thanks for your support thus far.
Ok, now i've got the VTK compiling
with Tcl/Tk just fine.  However,
now i'm running into problems at
run-time.  i have the following
paths set up:

 BUILD_EXAMPLES                   ON
 BUILD_SHARED_LIBS                OFF
 CMAKE_BACKWARDS_COMPATIBILITY    1.6
 CMAKE_BUILD_TYPE
 CMAKE_INSTALL_PREFIX        /home/larameer/evaluation/vtk/vtk-src-unix
 TCL_INCLUDE_PATH            /home/larameer/tcl/tcl8.4.7/unix/include
 TCL_LIBRARY                 /home/larameer/tcl/tcl8.4.7/unix/lib/libtcl8.4.so
 TK_INCLUDE_PATH             /home/larameer/tcl/tk8.4.7/unix/include
 TK_LIBRARY                  /home/larameer/tcl/tk8.4.7/unix/lib/libtk8.4.so
 VTK_DATA_ROOT               /home/larameer/evaluation/vtk/VTKData
 VTK_USE_HYBRID                   ON
 VTK_USE_PARALLEL                 ON
 VTK_USE_PATENTED                 ON
 VTK_USE_RENDERING                ON
 VTK_WRAP_JAVA                    OFF
 VTK_WRAP_PYTHON                  OFF
 VTK_WRAP_TCL                     ON

Now, when i try to run an Tcl/Tk example, i run
into the following error:

--- BEGIN ERROR ---

[larameer at lnxc25 vtk-src-unix]$ cd Examples/Tutorial/Step1/
[larameer at lnxc25 Step1]$ cd Tcl/
[larameer at lnxc25 Tcl]$ /home/larameer/evaluation/vtk/vtk-src-unix/bin/vtk 
Cone.tcl
Application initialization failed: Can't find a usable tk.tcl in the 
following directories:
/home/larameer/tcl/tcl8.4.7/unix/lib/tk8.4 
/home/larameer/evaluation/vtk/vtk-src-unix/lib/tk8.4 
/home/larameer/evaluation/vtk/lib/tk8.4 
/home/larameer/evaluation/vtk/vtk-src-unix/library 
/home/larameer/evaluation/vtk/library 
/home/larameer/evaluation/vtk/tk8.4.7/library 
/home/larameer/evaluation/tk8.4.7/library

This probably means that tk wasn't installed properly.

Error in startup script: can't find package vtk
    while executing
"package require vtk"
    (file "Cone.tcl" line 12)

--- END ERROR ---

Any idea(s) how to fix this problem?
Now, if i manually look into the first directory:
/home/larameer/tcl/tk8.4.7/unix/lib/tk8.4
i can see a tk.tcl file.  Also, i'm not sure
i understand where all these paths are 
coming from, for example:

/home/larameer/evaluation/vtk/vtk-src-unix/lib/tk8.4 
/home/larameer/evaluation/vtk/lib/tk8.4 
/home/larameer/evaluation/vtk/vtk-src-unix/library 
/home/larameer/evaluation/vtk/library 
/home/larameer/evaluation/vtk/tk8.4.7/library 
/home/larameer/evaluation/tk8.4.7/library

Because, i never gave these paths to ccmake.
i installed tcl/tk in a separate directory
from the vtk.
Thanks again for the help thus far!

-cheers, bob

On Thursday 28 October 2004 05:26 pm, Mathieu Malaterre wrote:
> Robert,
>
> Change
>
>  >  TCL_LIBRARY                      /home/larameer/tcl/tcl8.4.7/unix/lib
>  >  TK_LIBRARY                       /home/larameer/tcl/tk8.4.7/unix/lib
>
> into
>
> TCL_LIBRARY                   
> /home/larameer/tcl/tcl8.4.7/unix/lib/libtcl.a TK_LIBRARY                   
> /home/larameer/tcl/tk8.4.7/unix/lib/libtk.a
>
> (or .so)
>
> HTH
> Mathieu
>
> Robert S Laramee wrote:
> > Dear Fellow VTK Users,
> >
> > i'm having a problem compiling the VTK with
> > Tcl/Tk.  i can compile and run the demo
> > programs just fine without Tcl/Tk.
> >
> > i've downloaded and installed Tcl and
> > Tk v 8.4.7.  i've run ccmake and added
> > the Tcl/Tk include directories as follows:
> >
> >  BUILD_EXAMPLES                   ON
> >  BUILD_SHARED_LIBS                OFF
> >  CMAKE_BACKWARDS_COMPATIBILITY    1.6
> >  CMAKE_BUILD_TYPE
> >  CMAKE_INSTALL_PREFIX            
> > /home/larameer/evaluation/vtk/vtk-src-unix TCL_INCLUDE_PATH              
> >   /home/larameer/tcl/tcl8.4.7/unix/include TCL_LIBRARY                   
> >   /home/larameer/tcl/tcl8.4.7/unix/lib TK_INCLUDE_PATH                 
> > /home/larameer/tcl/tk8.4.7/unix/include TK_LIBRARY                      
> > /home/larameer/tcl/tk8.4.7/unix/lib VTK_DATA_ROOT                   
> > /home/larameer/evaluation/vtk/VTKData VTK_USE_HYBRID                   ON
> >  VTK_USE_PARALLEL                 ON
> >  VTK_USE_PATENTED                 ON
> >  VTK_USE_RENDERING                ON
> >  VTK_WRAP_JAVA                    OFF
> >  VTK_WRAP_PYTHON                  OFF
> >  VTK_WRAP_TCL                     ON
> >
> > And ccmake generates the makefiles without
> > reporting any errors.  However, i get a problem
> > compiling the VTK.  It compiles for quite awhile,
> > (~15 minutes) and then run into the following
> > problem:
> >
> > ...
> > Building object file vtkPatentedInstantiator.o...
> > Building static library
> > /home/larameer/evaluation/vtk/vtk-src-unix/bin/libvtkPatented.a.../home/l
> >arameer/evaluation/vtk/vtk-src-unix/Parallel: building default_target
> > Building dependencies. cmake.depends...
> > Building object file vtkBranchExtentTranslator.o...
> > Building object file vtkCollectPolyData.o...
> > Building object file vtkCommunicator.o...
> > Building object file vtkCompositeManager.o...
> >
> > (more classes) ...
> >
> > Building object file vtkTreeCompositer.o...
> > Building object file vtkSharedMemoryCommunicator.o...
> > Building object file vtkThreadedController.o...
> > Building object file vtkParallelInstantiator.o...
> > Building static library
> > /home/larameer/evaluation/vtk/vtk-src-unix/bin/libvtkParallel.a.../home/l
> >arameer/evaluation/vtk/vtk-src-unix/Wrapping/Tcl: building default_target
> > Building dependencies. cmake.depends...
> > Building executable /home/larameer/evaluation/vtk/vtk-src-unix/bin/vtk...
> > /home/larameer/tcl/tcl8.4.7/unix/lib: file not recognized: Is a directory
> > collect2: ld returned 1 exit status
> > make[3]: *** [/home/larameer/evaluation/vtk/vtk-src-unix/bin/vtk] Error 1
> > make[2]: *** [default_target] Error 2
> > make[1]: *** [default_target_Wrapping_Tcl] Error 2
> > make: *** [default_target] Error 2
> > [larameer at lnxc25 vtk-src-unix]$
> >
> > Any hints/suggestions would be greatly appreciated!
> >
> > -cheers, bob

-- 
Robert S. Laramee
tel: +43 (316) 787-1740
fax: +43 (316) 787-777
http://www.VRVis.at/ar3/pr2/
John Kerry for President: http://www.johnkerry.com/


From wyssa1 at hta-bi.bfh.ch  Fri Oct 29 10:32:56 2004
From: wyssa1 at hta-bi.bfh.ch (Adrian Wyssmann)
Date: Fri, 29 Oct 2004 16:32:56 +0200
Subject: [vtkusers] Re: vtkImagePlaneWidget problem on vtkImageData (C++)
In-Reply-To: <41822226.7070101@libero.it>
Message-ID: <200410291432.i9TEWvDj018241@service7.hta-bi.bfh.ch>

Well, that was the point! I get now a separate window. But i want to be able
to change the window-level in the "original" window. How can I set the
RenderWindow of the myImageViewer2? Or what have I to do? Her's my code:

...
myRenderWindow = vtkRenderWindow::New();
...
myRenderWindow->AddRenderer(myRenderer);
...
myRenderWindowInteractor = vtkRenderWindowInteractor::New();
myRenderWindowInteractor->SetRenderWindow(myRenderWindow);
...
myActor = vtkImageActor::New();
myActor->SetInput(myImageData);
myRenderer->AddActor(myActor);
...
myImageViewer2 = vtkImageViewer2::New();
myImageViewer2->SetupInteractor(myWindowInteractor);
myImageViewer2->SetInput(myImageData);
...


Adrian

-----Original Message-----
From: Luca Picello [mailto:luca.picello at libero.it] 
Sent: Freitag, 29. Oktober 2004 12:58
To: Adrian Wyssmann
Cc: 'Dean Inglis'; 'vtkusers archive'
Subject: Re: [vtkusers] Re: vtkImagePlaneWidget problem on vtkImageData
(C++)


Not sure but usually you obtain this error with VS6 compiler when the
declaration for vtkImageViewer2 is missing.
Check you have #include "vtkImageViewer2.h" in your sources.

Bye,
Luca




Adrian Wyssmann wrote:

>In the line of the declaration of vtkImageViewer2 I get the compile 
>error (using VS6):
>vtkImageViewer2* pMyImageViewer2; //c2143 sytnax error: missing ";" 
>before '*'
>
>Adrian
>
>-----Original Message-----
>From: vtkusers-bounces at vtk.org [mailto:vtkusers-bounces at vtk.org] On 
>Behalf Of Dean Inglis
>Sent: Donnerstag, 28. Oktober 2004 19:22
>To: vtkusers archive
>Subject: [vtkusers] Re: vtkImagePlaneWidget problem on vtkImageData 
>(C++)
>
>Adrian,
>
>tyry using class vtkImageViewer2, as it was meant for 2D image display 
>and has built in window-level functionality controlled by the mouse.
>vtkImagePlaneWidget is really designed to work with 3D image data.
>
>Dean
>
>
>I have a simple 2D-image (vtkImageData). I want to be able to change 
>the window-level by the mouse. So I used a vtkImagePlaneWidget, which 
>implements that. Actual it works, but not as expected:
>The widget seems to be like a fog over the image. Some pixels habe the 
>original color, others have been set to black. If I turn the widget by 
>one of it's margins, I see again the proper image.
>
>vtkImageData* myImageData;
>vtkImagePlaneWidget* = myImagePlaneWidget;
>vtkLookupTable* = myLookupTable;
>
>//initialization ...
>
>myImagePlaneWidget->SetInput(myImageData);
>myImagePlaneWidget->SetPlaneOrientation(2); //Z-Axe On(); 
>myImagePlaneWidget->SetSlicePosition(0);
>myImagePlaneWidget->GetLookuptable()->DeepCopy(myLookupTable);
>
>//more code ...
>
>Can anybody help?
>
>Thanks
>
>Adrian
>
>
>_______________________________________________
>This is the private VTK discussion list. 
>Please keep messages on-topic. Check the FAQ at:
><http://public.kitware.com/cgi-bin/vtkfaq>
>Follow this link to subscribe/unsubscribe:
>http://www.vtk.org/mailman/listinfo/vtkusers
>
>
>_______________________________________________
>This is the private VTK discussion list. 
>Please keep messages on-topic. Check the FAQ at: 
><http://public.kitware.com/cgi-bin/vtkfaq>
>Follow this link to subscribe/unsubscribe:
>http://www.vtk.org/mailman/listinfo/vtkusers
>.
>
>  
>





From beau.sapach at ualberta.ca  Fri Oct 29 12:05:27 2004
From: beau.sapach at ualberta.ca (Beau Sapach)
Date: Fri, 29 Oct 2004 10:05:27 -0600
Subject: [vtkusers] Playing a sequence of images
In-Reply-To: <17620.1099045625@www13.gmx.net>
Message-ID: <200410291605.i9TG5Sb8000871@pilsener.srv.ualberta.ca>

I've done the exact same thing, and even tried multithreading as you have.
In the end I used a timer, so that my "Play" function is:

void MyAppDlg::OnbtnPlay() 
{
	UINT t = this->SetTimer(1,40,NULL);
}

1 being the timer's ID and 40 milliseconds being the interval, setting the
timer function to NULL means it will run the function pointed to by your
WM_TIMER message.  So in class wizard you want to select your MyAppDlg
objectid, then choose it's WM_TIMER message and Add or Edit the function
associated with it, this function should move to the next image "frame" and
re-render every time it is called, mine looks like this:

void MyAppDlg::OnTimer(UINT nIDEvent) 
{
	// Imagedata uses vtkFloatArray ifloat as it's scalar values, change
the 
	// actual float array that ifloat points to by grabbing and casting
the
	// next pointer from the CPtrArray frames
	this->ifloat->SetArray((float*)frames->GetAt(frame),40960,1);
	RenWindow->Render();
	frame++;
	// Loop indefinitely through 35 frames
	if(frame==35){frame = 0;}
	CDialog::OnTimer(nIDEvent);
}

 The KillTimer(timerid) function should be used in your "Stop" button.

Everything still runs on the main thread but the UI should remain
responsive....

Beau

-----Original Message-----
From: vtkusers-bounces at vtk.org [mailto:vtkusers-bounces at vtk.org] On Behalf
Of Markus Erbacher
Sent: Friday, October 29, 2004 4:27 AM
To: vtkusers at vtk.org
Subject: [vtkusers] Playing a sequence of images

Hi,
I am trying to play an sequence of images. I have all those images as slices
in an vtkImageData. If I play the sequence from the mainthread, the whole
application is frozen till the sequence ends. So I tried to play it in a
different thread. If I do so, I always recieve that Error:

ERROR: In \Programme\Vtk\Rendering\vtkWin32OpenGLRenderWindow.cxx, line 228
vtkWin32OpenGLRenderWindow (06A6D028): wglMakeCurrent failed in
MakeCurrent(), error: Die angeforderte Ressource wird bereits verwendet.

Although that error occurs, the changes in the scene are made. But they are
not rendered.

How can I get the Renderer to rerender the scene? Is there a way without
using Render() (because of the error)?
Or even better: Is their in VTK a possibility to play sequences a other way?

Thanks in advance

Regards
Markus

-- 
NEU +++ DSL Komplett von GMX +++ http://www.gmx.net/de/go/dsl
GMX DSL-Netzanschluss + Tarif zum superg|nstigen Komplett-Preis!

_______________________________________________
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Please keep messages on-topic. Check the FAQ at:
<http://public.kitware.com/cgi-bin/vtkfaq>
Follow this link to subscribe/unsubscribe:
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From lafisk at sandia.gov  Fri Oct 29 12:18:02 2004
From: lafisk at sandia.gov (Fisk, Lee Ann)
Date: Fri, 29 Oct 2004 10:18:02 -0600
Subject: [vtkusers] Is vtkDistributedDataFilter put in
	thelibvtkParallel.s o library?
Message-ID: <1099066682.14804.26.camel@sadl14088.sandia.gov>

Hello... vtkDistributedDataFilter depends on several other new classes.
You will need them as well:

vtkPKdTree
vtkKdTree
vtkKdNode
vtkMergeCells
vtkExtractCells
vtkBoxClipDataSet
vtkExtractUserDefinedPiece
vtkModelMetadata
vtkPlanesIntersection
vtkPointsProjectedHull
vtkSubGroup

If you pull these out of the CVS head and try to run them in 4.4, I
think it's likely there will be problems.  I would just check out the
CVS head.

Lee Ann

Jeremy,

	My mistake the filter is recent. So it din't made into 4.4. You have

two options:

- stick to 4.4, and copy/paste only this class from CVS into your VTK 
directory. Recompile

- Use CVS

HTH
Mathieu


Jeremy Stout wrote:
> Hello, MPI is installed and that particular switch was turned on when
> I was compiling VTK.  I've been able to compile and link other
> programs that use MPI specific vtk classes (such as vtkMPIController
> and vtkMPICommunicator) without any problems.
> 
> Jeremy Stout
>
-- 
Lee Ann Fisk, Department 9227
Data Analysis and Visualization
Sandia National Laboratories
505-844-2059




From sqsavage at tom.com  Fri Oct 29 12:43:32 2004
From: sqsavage at tom.com (=?gb2312?B?t8q3yg==?=)
Date: Sat, 30 Oct 2004 00:43:32 +0800 (CST)
Subject: [vtkusers] How to use VTK in JBuilderX?
Message-ID: <41827334.000013.02855@bjapp14>

How to use VTK in JBuilderX?

I try the example Cone.java in JBuilderX, but an error ?UnsatisfiedLinkError? occoured. 

In the example there is a script of source code to load native .dll model(such as vtkCommonJava, vtkRenderingJava, and so on):

public class Cone {

  // In the static contructor we load in the native code.
  // The libraries must be in your path to work.
  static { 
    System.loadLibrary("vtkCommonJava"); 
    System.loadLibrary("vtkFilteringJava"); 
    System.loadLibrary("vtkIOJava"); 
    System.loadLibrary("vtkImagingJava"); 
    System.loadLibrary("vtkGraphicsJava"); 
    System.loadLibrary("vtkRenderingJava");

  }

 public static void main (String []args) {
     ................................

Run the project ,then an error occurred like this:

java.lang.UnsatisfiedLinkError: no vtkCommonJava in java.library.path 	at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1491) 	at java.lang.Runtime.loadLibrary0(Runtime.java:788) 	at java.lang.System.loadLibrary(System.java:834) 	at cone.Cone.(Cone.java:22) 

I have install the VTK on the path ?F:\vtk42Learning\vtk42?. And I have set the entironment variable classpath like this: F:\vtk42Learning\vtk42. My OS is WinXP professional. 

How can I correct this error?
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From hastings at bmi.osu.edu  Fri Oct 29 12:43:32 2004
From: hastings at bmi.osu.edu (Shannon L. Hastings)
Date: Fri, 29 Oct 2004 12:43:32 -0400
Subject: [vtkusers] vtkDataWriter and Java
Message-ID: <9924B07B7EF14B41A23561C0F575221E3484@exchange.bmi.ohio-state.edu>

Did anyone ever help you out with this.  I am having similar problems.
 
http://public.kitware.com/pipermail/vtkusers/2001-August/056966.html
 
Shannon
 
 
_____________________________
      Shannon L. Hastings
                           Senior Research Specialist
 
Multiscale Computing Lab        333 W. Tenth Ave
Biomedical Informatics               3175 Graves Hall
Ohio State University                 Columbus, OH 43210
                                                614-292-9461
 
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From apbai at yahoo.com  Fri Oct 29 12:45:20 2004
From: apbai at yahoo.com (P Bai)
Date: Fri, 29 Oct 2004 09:45:20 -0700 (PDT)
Subject: [vtkusers] vtkTexture: rectangular texture??
Message-ID: <20041029164520.69631.qmail@web13122.mail.yahoo.com>

Hi all,

I found a very confusing behavior when I use
vtkTexture. Say, if I use a 30x40 rectangular map as
the texture and map it on to a square. Turn off the
interpolation. Shouldn't I get rectangular pixels on
the square. But instead I got SQUARE pixels. I'm 100%
sure it's not because of wrong texture coordinates. It
looks like vtk resample the texture or something. Has
anyone experienced this? Is this  a bug or the way it
is?

Thanks a bunch,

P


		
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From apbai at yahoo.com  Fri Oct 29 12:50:05 2004
From: apbai at yahoo.com (P Bai)
Date: Fri, 29 Oct 2004 09:50:05 -0700 (PDT)
Subject: [vtkusers] strange vtkTexture behavior
Message-ID: <20041029165005.70488.qmail@web13122.mail.yahoo.com>

I forgot to mention. I'm using vtk 4.2 on Win XP. I
also tried it on different graphics card. Same
results.

Thanks,

P

--- P Bai <apbai at yahoo.com> wrote:

> Date: Fri, 29 Oct 2004 09:45:20 -0700 (PDT)
> From: P Bai <apbai at yahoo.com>
> Subject: vtkTexture: rectangular texture??
> To: vtkusers at vtk.org
> 
> Hi all,
> 
> I found a very confusing behavior when I use
> vtkTexture. Say, if I use a 30x40 rectangular map as
> the texture and map it on to a square. Turn off the
> interpolation. Shouldn't I get rectangular pixels on
> the square. But instead I got SQUARE pixels. I'm
> 100%
> sure it's not because of wrong texture coordinates.
> It
> looks like vtk resample the texture or something.
> Has
> anyone experienced this? Is this  a bug or the way
> it
> is?
> 
> Thanks a bunch,
> 
> P
> 
> 
> 		
> __________________________________
> Do you Yahoo!?
> Yahoo! Mail Address AutoComplete - You start. We
> finish.
> http://promotions.yahoo.com/new_mail 
> 



		
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From clyne at ucar.edu  Fri Oct 29 13:16:21 2004
From: clyne at ucar.edu (John Clyne)
Date: Fri, 29 Oct 2004 11:16:21 -0600
Subject: [vtkusers] coloring an isosurface with a second variable
Message-ID: <003901c4bddb$02a91760$45dc7580@scd.ucar.edu>

I'm trying to do what I would think would be a trivial operation but I
can't for for the life of me figure out how to do in vtk. I have an XML data
file (.vts) that contains two scalar variables (temperature and humidity).
I'd like to generate an isosurface of one and color it with the other.
Selecting the field to isosurface is easy enough:

vtkXMLStructuredGridReader reader
    reader SetFileName $Datafile
    reader Update
    [[reader GetOutput] GetPointData] SetActiveScalars "humidity"

This selects the appropriate field for the isosurfacer, and if I do a

puts "[[mapper GetInput] Print"


I see both the temperature and humidity arrays named as "Point Data", but
now I have no idea how to tell the mapper to map the temperature field
through the lookup table to assign color to the resulting geometry coming
out of the vtkContour.

Any pointers would be greatly appreciated.

thanks!


John Clyne (clyne at ncar.ucar.edu)
National Center for Atmospheric Research
1850 Table Mesa Dr. Boulder, CO 80303 USA
1.303.497.1236



From Charles.Boivin at rwdiwest.com  Fri Oct 29 13:31:10 2004
From: Charles.Boivin at rwdiwest.com (Charles Boivin)
Date: Fri, 29 Oct 2004 11:31:10 -0600
Subject: [vtkusers] coloring an isosurface with a second variable
Message-ID: <s1822a1a.045@mailwest.rwdiwest.com>

Hi John,

I have been using vtkPolyDataMapper::SelectColorArray() to color an
isosurface with another variable. Seems to work pretty well for me.

Charles

>>> "John Clyne" <clyne at ucar.edu> 10/29/04 11:16am >>>
I'm trying to do what I would think would be a trivial operation but I
can't for for the life of me figure out how to do in vtk. I have an XML
data
file (.vts) that contains two scalar variables (temperature and
humidity).
I'd like to generate an isosurface of one and color it with the other.
Selecting the field to isosurface is easy enough:

vtkXMLStructuredGridReader reader
    reader SetFileName $Datafile
    reader Update
    [[reader GetOutput] GetPointData] SetActiveScalars "humidity"

This selects the appropriate field for the isosurfacer, and if I do a

puts "[[mapper GetInput] Print"


I see both the temperature and humidity arrays named as "Point Data",
but
now I have no idea how to tell the mapper to map the temperature field
through the lookup table to assign color to the resulting geometry
coming
out of the vtkContour.

Any pointers would be greatly appreciated.

thanks!


John Clyne (clyne at ncar.ucar.edu)
National Center for Atmospheric Research
1850 Table Mesa Dr. Boulder, CO 80303 USA
1.303.497.1236

_______________________________________________
This is the private VTK discussion list. 
Please keep messages on-topic. Check the FAQ at:
<http://public.kitware.com/cgi-bin/vtkfaq>
Follow this link to subscribe/unsubscribe:
http://www.vtk.org/mailman/listinfo/vtkusers



From pallavi.joshi at vanderbilt.edu  Fri Oct 29 14:04:53 2004
From: pallavi.joshi at vanderbilt.edu (Pallavi Joshi)
Date: Fri, 29 Oct 2004 13:04:53 -0500
Subject: [vtkusers] vtkPolyData question...please help
Message-ID: <001201c4bde1$cb22c000$da593b81@Pallavi>

Hi,
I have a vtkPolyData which has dimensions of 256*256*124 and spacing of 0.9375*0.9375*1.3.
I have to cut this at points of 1 mm spacing and convert it into isotropic polydata with dims of 256*256*256 and 1mm spcing in all directions. I am able to cut it but how to I create a polydata from this ?

Please help,

--Pallavi

-------------------------------------------------------------------
Pallavi Joshi
Graduate Student
Medical Image Processing Lab
Vanderbilt University
Phone: 615-343-6259
--------------------------------------------------------------------
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From rjstevens3 at yahoo.com  Fri Oct 29 14:04:55 2004
From: rjstevens3 at yahoo.com (Richard Stevens)
Date: Fri, 29 Oct 2004 11:04:55 -0700 (PDT)
Subject: [vtkusers] Trouble building VTK in SuSE Linux 9.1
Message-ID: <20041029180455.17223.qmail@web54202.mail.yahoo.com>

Hi, when i build VTK with Cmake i get this error:

Building executable
/VTKITK/VTK-binary/bin/GraphicsCxxTests...
/usr/X11R6/lib/X11: file not recognized: Is a
directory
collect2: ld returned 1 exit status
make[5]: *** [/VTKITK/VTK-binary/bin/GraphicsCxxTests]
Error 1
make[4]: *** [default_target] Error 2
make[3]: *** [default_target_Cxx] Error 2
make[2]: *** [default_target] Error 2
make[1]: *** [default_target_Graphics_Testing] Error 2

i don't understand the first error because the build
is looking for the X11 libraries which should be a
directory. I have also tried the paths

/usr/X11R6/lib
/usr/X11R6/lib/X11

and i get the same errors. Has anyone had this problem
before? how did you solve it?

Thanks
Richard Stevens


		
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From tfogal at apollo.sr.unh.edu  Fri Oct 29 14:10:52 2004
From: tfogal at apollo.sr.unh.edu (tom fogal)
Date: Fri, 29 Oct 2004 14:10:52 -0400
Subject: [vtkusers] Trouble building VTK in SuSE Linux 9.1 
In-Reply-To: Your message of "Fri, 29 Oct 2004 11:04:55 PDT."
	<20041029180455.17223.qmail@web54202.mail.yahoo.com> 
References: <20041029180455.17223.qmail@web54202.mail.yahoo.com> 
Message-ID: <200410291810.i9TIAqHR017767@apollo.sr.unh.edu>

 <20041029180455.17223.qmail at web54202.mail.yahoo.com>Richard Stevens writes:
>Hi, when i build VTK with Cmake i get this error:
>
>Building executable
>/VTKITK/VTK-binary/bin/GraphicsCxxTests...
>/usr/X11R6/lib/X11: file not recognized: Is a
>directory

You should not be giving CMake a directory when it asks for X11 libs.
If it wants 'libX11', give it the full path to libX11.so or libX11.a.
If it wants Xlib, give it the full path to libXlib.so, etc. etc..

-tom

<snip>


From hastings at bmi.osu.edu  Fri Oct 29 14:10:47 2004
From: hastings at bmi.osu.edu (Shannon L. Hastings)
Date: Fri, 29 Oct 2004 14:10:47 -0400
Subject: [vtkusers] (no subject)
Message-ID: <9924B07B7EF14B41A23561C0F575221E3486@exchange.bmi.ohio-state.edu>

I am using the 4.2 windows release with the java wrappers and have
noticed the following problem.   I am trying to serialize from a
vtkDataWriter  to a vtkDataReader using a byte array or string etc
whatever will work.  I have this code working in c++ but with the java
wrappers I get a "Error reading binary data" in reader.  Also, I have
tried to use the writer to write out ASCII to a string and noticed that
is not supported as it gives a "OutputString was not long enough."  So I
am using binary on both ends (see below). The image comes out on the
other side corrupted.  There is something definitely wrong with the
bytes or the interpretation of them, possible due to the JNI layer or
due to the fact that the RegisterAndGetOutputString() is returning a
Java String and not a char[];  Any thoughts?
 
Thanks in advance!
Shannon
 
 
Here is the snippet:
 
vtkStructuredPointsWriter writer = new vtkStructuredPointsWriter();
vtkStructuredPointsReader reader = new vtkStructuredPointsReader();
vtkImageData output;  //assume output has some image in it
 
writer.SetInput(output);
writer.SetFileTypeToBinary();                  
writer.SetWriteToOutputString(1);
writer.Write();
 
//serialize
String data = writer.RegisterAndGetOutputString();
 
//deserialize
reader.ReadFromInputStringOn();
reader.SetBinaryInputString(data.getBytes(),data.length());
reader.Update();
 
 
_____________________________
      Shannon L. Hastings
                           Senior Research Specialist
 
Multiscale Computing Lab        333 W. Tenth Ave
Biomedical Informatics               3175 Graves Hall
Ohio State University                 Columbus, OH 43210
                                                614-292-9461
 
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From clyne at ucar.edu  Fri Oct 29 14:23:03 2004
From: clyne at ucar.edu (John Clyne)
Date: Fri, 29 Oct 2004 12:23:03 -0600
Subject: [vtkusers] coloring an isosurface with a second variable
References: <s1822a1a.044@mailwest.rwdiwest.com>
Message-ID: <006701c4bde4$546f4cf0$45dc7580@scd.ucar.edu>

Charles, this shows my ignorance of vtk, but it looks like SelectColorArray
can be used when you have "Field" data. the vtkXMLStructureGridReader loads
the scalar data as "Point" data. I don't really understand the difference
between Point and Field data, nor how you might convert one to the other.
Any insight here?

Thanks for your quick response, Charlse.

cheers - jc


----- Original Message ----- 
From: "Charles Boivin" <Charles.Boivin at rwdiwest.com>
To: <clyne at ucar.edu>; <vtkusers at vtk.org>
Sent: Friday, October 29, 2004 11:31 AM
Subject: Re: [vtkusers] coloring an isosurface with a second variable


> Hi John,
> 
> I have been using vtkPolyDataMapper::SelectColorArray() to color an
> isosurface with another variable. Seems to work pretty well for me.
> 
> Charles
> 
> >>> "John Clyne" <clyne at ucar.edu> 10/29/04 11:16am >>>
> I'm trying to do what I would think would be a trivial operation but I
> can't for for the life of me figure out how to do in vtk. I have an XML
> data
> file (.vts) that contains two scalar variables (temperature and
> humidity).
> I'd like to generate an isosurface of one and color it with the other.
> Selecting the field to isosurface is easy enough:
> 
> vtkXMLStructuredGridReader reader
>     reader SetFileName $Datafile
>     reader Update
>     [[reader GetOutput] GetPointData] SetActiveScalars "humidity"
> 
> This selects the appropriate field for the isosurfacer, and if I do a
> 
> puts "[[mapper GetInput] Print"
> 
> 
> I see both the temperature and humidity arrays named as "Point Data",
> but
> now I have no idea how to tell the mapper to map the temperature field
> through the lookup table to assign color to the resulting geometry
> coming
> out of the vtkContour.
> 
> Any pointers would be greatly appreciated.
> 
> thanks!
> 
> 
> John Clyne (clyne at ncar.ucar.edu)
> National Center for Atmospheric Research
> 1850 Table Mesa Dr. Boulder, CO 80303 USA
> 1.303.497.1236
> 
> _______________________________________________
> This is the private VTK discussion list. 
> Please keep messages on-topic. Check the FAQ at:
> <http://public.kitware.com/cgi-bin/vtkfaq>
> Follow this link to subscribe/unsubscribe:
> http://www.vtk.org/mailman/listinfo/vtkusers
> 


From Charles.Boivin at rwdiwest.com  Fri Oct 29 14:34:21 2004
From: Charles.Boivin at rwdiwest.com (Charles Boivin)
Date: Fri, 29 Oct 2004 12:34:21 -0600
Subject: [vtkusers] coloring an isosurface with a second variable
Message-ID: <s18238e9.061@mailwest.rwdiwest.com>

Hi John,

Well, this perhaps will show my ignorance of VTK as I am a relative
newbie, but as far as I know, point data *is* field data. If you look at
the vtkPointData documentation, you will see that that class is derived
from vtkFieldData. 

By the way, a call to vtkPolyData::GetPointData() (like you have in
your example code below) returns a pointer to a vtkPointData object, so
I think using vtkPolyDataMapper::SelectColorArray() should still work.
Make sure that you have called
vtkPolyDataMapper::SetScalarModeToUsePointFieldData() first. 

So, as far as I understand it, this should work (it does for me,
although I am not using the vtkXMLStructuredGridReader). Hope this
helps!

Charles

>>> "John Clyne" <clyne at ucar.edu> 10/29/04 12:23pm >>>
Charles, this shows my ignorance of vtk, but it looks like
SelectColorArray
can be used when you have "Field" data. the vtkXMLStructureGridReader
loads
the scalar data as "Point" data. I don't really understand the
difference
between Point and Field data, nor how you might convert one to the
other.
Any insight here?

Thanks for your quick response, Charlse.

cheers - jc


----- Original Message ----- 
From: "Charles Boivin" <Charles.Boivin at rwdiwest.com>
To: <clyne at ucar.edu>; <vtkusers at vtk.org>
Sent: Friday, October 29, 2004 11:31 AM
Subject: Re: [vtkusers] coloring an isosurface with a second variable


> Hi John,
> 
> I have been using vtkPolyDataMapper::SelectColorArray() to color an
> isosurface with another variable. Seems to work pretty well for me.
> 
> Charles
> 
> >>> "John Clyne" <clyne at ucar.edu> 10/29/04 11:16am >>>
> I'm trying to do what I would think would be a trivial operation but
I
> can't for for the life of me figure out how to do in vtk. I have an
XML
> data
> file (.vts) that contains two scalar variables (temperature and
> humidity).
> I'd like to generate an isosurface of one and color it with the
other.
> Selecting the field to isosurface is easy enough:
> 
> vtkXMLStructuredGridReader reader
>     reader SetFileName $Datafile
>     reader Update
>     [[reader GetOutput] GetPointData] SetActiveScalars "humidity"
> 
> This selects the appropriate field for the isosurfacer, and if I do
a
> 
> puts "[[mapper GetInput] Print"
> 
> 
> I see both the temperature and humidity arrays named as "Point
Data",
> but
> now I have no idea how to tell the mapper to map the temperature
field
> through the lookup table to assign color to the resulting geometry
> coming
> out of the vtkContour.
> 
> Any pointers would be greatly appreciated.
> 
> thanks!
> 
> 
> John Clyne (clyne at ncar.ucar.edu)
> National Center for Atmospheric Research
> 1850 Table Mesa Dr. Boulder, CO 80303 USA
> 1.303.497.1236
> 
> _______________________________________________
> This is the private VTK discussion list. 
> Please keep messages on-topic. Check the FAQ at:
> <http://public.kitware.com/cgi-bin/vtkfaq>
> Follow this link to subscribe/unsubscribe:
> http://www.vtk.org/mailman/listinfo/vtkusers 
> 
_______________________________________________
This is the private VTK discussion list. 
Please keep messages on-topic. Check the FAQ at:
<http://public.kitware.com/cgi-bin/vtkfaq>
Follow this link to subscribe/unsubscribe:
http://www.vtk.org/mailman/listinfo/vtkusers



From amy.henderson at kitware.com  Fri Oct 29 14:49:44 2004
From: amy.henderson at kitware.com (Amy Henderson)
Date: Fri, 29 Oct 2004 14:49:44 -0400
Subject: [vtkusers] vtkPolyData question...please help
In-Reply-To: <001201c4bde1$cb22c000$da593b81@Pallavi>
References: <001201c4bde1$cb22c000$da593b81@Pallavi>
Message-ID: <6.1.2.0.2.20041029144855.03b49ce0@pop.biz.rr.com>

It sounds like you're using vtkImageData, not vtkPolyData. (Image data has 
dimensions and spacing; poly data does not.)
- Amy

At 02:04 PM 10/29/2004, Pallavi Joshi wrote:
>Hi,
>I have a vtkPolyData which has dimensions of 256*256*124 and spacing of 
>0.9375*0.9375*1.3.
>I have to cut this at points of 1 mm spacing and convert it into isotropic 
>polydata with dims of 256*256*256 and 1mm spcing in all directions. I am 
>able to cut it but how to I create a polydata from this ?
>
>Please help,
>
>--Pallavi
>
>-------------------------------------------------------------------
>Pallavi Joshi
>Graduate Student
>Medical Image Processing Lab
>Vanderbilt University
>Phone: 615-343-6259
>--------------------------------------------------------------------
>_______________________________________________
>This is the private VTK discussion list.
>Please keep messages on-topic. Check the FAQ at: 
><http://public.kitware.com/cgi-bin/vtkfaq>
>Follow this link to subscribe/unsubscribe:
>http://www.vtk.org/mailman/listinfo/vtkusers





From clyne at ucar.edu  Fri Oct 29 15:49:46 2004
From: clyne at ucar.edu (John Clyne)
Date: Fri, 29 Oct 2004 13:49:46 -0600
Subject: [vtkusers] coloring an isosurface with a second variable
References: <s18238e9.060@mailwest.rwdiwest.com>
Message-ID: <008301c4bdf0$717a55e0$45dc7580@scd.ucar.edu>

Hmm. Doing a print on the vtkPolyData coming out of the isosurfacer shows
"Field Data", "Cell Data", and "Point Data" elements. Only the last, "Point
Data", appears to contain non-empty arrays. So there does seem to be a
distinction between point and field data. Perhaps someone else out there can
explain.

I did call SetScalarModeToUsePointFieldData but that didn't seem to have any
effect.

thanks again

----- Original Message ----- 
From: "Charles Boivin" <Charles.Boivin at rwdiwest.com>
To: <clyne at ucar.edu>; <vtkusers at vtk.org>
Sent: Friday, October 29, 2004 12:34 PM
Subject: Re: [vtkusers] coloring an isosurface with a second variable


> Hi John,
>
> Well, this perhaps will show my ignorance of VTK as I am a relative
> newbie, but as far as I know, point data *is* field data. If you look at
> the vtkPointData documentation, you will see that that class is derived
> from vtkFieldData.
>
> By the way, a call to vtkPolyData::GetPointData() (like you have in
> your example code below) returns a pointer to a vtkPointData object, so
> I think using vtkPolyDataMapper::SelectColorArray() should still work.
> Make sure that you have called
> vtkPolyDataMapper::SetScalarModeToUsePointFieldData() first.
>
> So, as far as I understand it, this should work (it does for me,
> although I am not using the vtkXMLStructuredGridReader). Hope this
> helps!
>
> Charles
>
> >>> "John Clyne" <clyne at ucar.edu> 10/29/04 12:23pm >>>
> Charles, this shows my ignorance of vtk, but it looks like
> SelectColorArray
> can be used when you have "Field" data. the vtkXMLStructureGridReader
> loads
> the scalar data as "Point" data. I don't really understand the
> difference
> between Point and Field data, nor how you might convert one to the
> other.
> Any insight here?
>
> Thanks for your quick response, Charlse.
>
> cheers - jc
>
>
> ----- Original Message ----- 
> From: "Charles Boivin" <Charles.Boivin at rwdiwest.com>
> To: <clyne at ucar.edu>; <vtkusers at vtk.org>
> Sent: Friday, October 29, 2004 11:31 AM
> Subject: Re: [vtkusers] coloring an isosurface with a second variable
>
>
> > Hi John,
> >
> > I have been using vtkPolyDataMapper::SelectColorArray() to color an
> > isosurface with another variable. Seems to work pretty well for me.
> >
> > Charles
> >
> > >>> "John Clyne" <clyne at ucar.edu> 10/29/04 11:16am >>>
> > I'm trying to do what I would think would be a trivial operation but
> I
> > can't for for the life of me figure out how to do in vtk. I have an
> XML
> > data
> > file (.vts) that contains two scalar variables (temperature and
> > humidity).
> > I'd like to generate an isosurface of one and color it with the
> other.
> > Selecting the field to isosurface is easy enough:
> >
> > vtkXMLStructuredGridReader reader
> >     reader SetFileName $Datafile
> >     reader Update
> >     [[reader GetOutput] GetPointData] SetActiveScalars "humidity"
> >
> > This selects the appropriate field for the isosurfacer, and if I do
> a
> >
> > puts "[[mapper GetInput] Print"
> >
> >
> > I see both the temperature and humidity arrays named as "Point
> Data",
> > but
> > now I have no idea how to tell the mapper to map the temperature
> field
> > through the lookup table to assign color to the resulting geometry
> > coming
> > out of the vtkContour.
> >
> > Any pointers would be greatly appreciated.
> >
> > thanks!
> >
> >
> > John Clyne (clyne at ncar.ucar.edu)
> > National Center for Atmospheric Research
> > 1850 Table Mesa Dr. Boulder, CO 80303 USA
> > 1.303.497.1236
> >
> > _______________________________________________
> > This is the private VTK discussion list.
> > Please keep messages on-topic. Check the FAQ at:
> > <http://public.kitware.com/cgi-bin/vtkfaq>
> > Follow this link to subscribe/unsubscribe:
> > http://www.vtk.org/mailman/listinfo/vtkusers
> >
> _______________________________________________
> This is the private VTK discussion list.
> Please keep messages on-topic. Check the FAQ at:
> <http://public.kitware.com/cgi-bin/vtkfaq>
> Follow this link to subscribe/unsubscribe:
> http://www.vtk.org/mailman/listinfo/vtkusers
>



From peng-cheng at uiowa.edu  Fri Oct 29 17:59:26 2004
From: peng-cheng at uiowa.edu (Peng (Patrick) Cheng)
Date: Fri, 29 Oct 2004 15:59:26 -0600
Subject: [vtkusers] How to use paraview glyph to visualize tensor field
Message-ID: <4182BD3E.9010902@uiowa.edu>

Hi all,
I have a tensor image, I want to use the paraview to visualiaze it, 
using the oriented glyph, I am trying to use the three eigen vector as 
the orientation of the sphere, and another scalar value to scale it. how 
do I do this? How do I write a file for the paraview to read in?
Thanks
Patrick
-- 

Peng (Patrick) Cheng
Research Assistant
Radiology, Magnetic Resonance Imaging (MRI) Center
University of Iowa Hospital and Clinics
Iowa City, IA 52246

Office:  0453-E JCP
Phone:   (319)356-7808 (O)
          (319)400-7442 (C)
Email:   peng-cheng at uiowa.edu
Website: http://css.engineering.uiowa.edu/~pcheng/





From sqsavage at tom.com  Fri Oct 29 21:28:26 2004
From: sqsavage at tom.com (=?gb2312?B?t8q3yg==?=)
Date: Sat, 30 Oct 2004 09:28:26 +0800 (CST)
Subject: [vtkusers] =?gb2312?b?V2h5IEkgY2Fuoa90IHNlZSB0aGUgVlRLIHNvdXJj?=
 =?gb2312?b?ZSBjb2RlPyhTb3VyY2UgQ29kZSk=?=
Message-ID: <4182EE3A.0000C5.18609@bjapp16>

 Why I can?t see the VTK source code?(Source Code)

Hi, all.

I had downloaded the VTK source code and make a VC-project using CMake. In CMake, I turn the Cache Values vtk_USE_RENDERING, VTK_WRAP_JAVA on.

But after I open this project using VC6.0, I found that I can?t see the source code of some function. Take the VTKIOJava classes-->VTKIWriter-->WriteData() for example. When double click the string ?WriteData()?, threr is an warning apprearing ?Cannot find the definition (implementation) of this function.? So I can?t see the source code of the function  ?WriteData()?. Why? And How can I solute this problem?

Thanks in advance.
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From sscomp2004 at yahoo.com.au  Fri Oct 29 22:35:04 2004
From: sscomp2004 at yahoo.com.au (s comp)
Date: Sat, 30 Oct 2004 12:35:04 +1000 (EST)
Subject: [vtkusers] Re: coloring an isosurface with a second variable
Message-ID: <20041030023504.34672.qmail@web61107.mail.yahoo.com>

I have not had any luck using SelectColorArray, the script runs regardless of the argument I pass to this, whether it is an existing array or not, and if I pass a valid array name or number it doesn't use it. I get this behaviour for structured and unstructured grids.

If anyone knows why this is so, I would really like to know.
 
Sonam
 

Hi John,

I have been using vtkPolyDataMapper::SelectColorArray() to color an
isosurface with another variable. Seems to work pretty well for me.

Charles





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From luca.picello at libero.it  Sat Oct 30 05:44:23 2004
From: luca.picello at libero.it (Luca Picello)
Date: Sat, 30 Oct 2004 11:44:23 +0200
Subject: [vtkusers] Why I =?UTF-8?B?Y2Fu4oCZdCBzZWUgdGhlIFZUSyBzb3VyYw==?=
	=?UTF-8?B?ZSBjb2RlPyhTb3VyY2UgQ29kZSk=?=
In-Reply-To: <4182EE3A.0000C5.18609@bjapp16>
References: <4182EE3A.0000C5.18609@bjapp16>
Message-ID: <41836277.5090903@libero.it>


At the beginning, in Cmake environment, change CMAKE_BUILT_TYPE to Debug.
Bye

Luca

?? wrote:

> Why I can?t see the VTK source code?(Source Code) Hi, all. I had 
> downloaded the VTK source code and make a VC-project using CMake. In 
> CMake, I turn the Cache Values vtk_USE_RENDERING, VTK_WRAP_JAVA on. 
> But after I open this project using VC6.0, I found that I can?t see 
> the source code of some function. Take the VTKIOJava 
> classes-->VTKIWriter-->WriteData() for example. When double click the 
> string ?WriteData()?, threr is an warning apprearing ?Cannot find the 
> definition (implementation) of this function.? So I can?t see the 
> source code of the function ?WriteData()?. Why? And How can I solute 
> this problem? Thanks in advance.
>
> ------------------------------------------------------------------------
> ??????????? ?????!!! 
> <http://sms1.ctn.com.cn/ivr/usms_ivr_free_song_01_1_0.htm?user_id=3&code_id=w006> 
>
> ????????????TOM ??? <http://card.tom.com/catalog/120/>
> 150?????MP3??????? <http://mp3.tom.com/>
>
> 163???????????????????????
> ????????????????????????? <http://vip.163.net>
> ?????????(24??)?8008309163 ? 020-87324711 
> <http://vip.163.net>
>
>------------------------------------------------------------------------
>
>_______________________________________________
>This is the private VTK discussion list. 
>Please keep messages on-topic. Check the FAQ at: <http://public.kitware.com/cgi-bin/vtkfaq>
>Follow this link to subscribe/unsubscribe:
>http://www.vtk.org/mailman/listinfo/vtkusers
>  
>



From sscomp2004 at yahoo.com.au  Sat Oct 30 10:41:53 2004
From: sscomp2004 at yahoo.com.au (s comp)
Date: Sun, 31 Oct 2004 00:41:53 +1000 (EST)
Subject: [vtkusers] Re: coloring an isosurface with a second variable
Message-ID: <20041030144153.32653.qmail@web61104.mail.yahoo.com>

SetScalarModeToUsePointFieldData did the trick for me :)
 
thanks
 
sonam



---------------------------------
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From sqsavage at tom.com  Sat Oct 30 13:14:09 2004
From: sqsavage at tom.com (=?gb2312?B?t8q3yg==?=)
Date: Sun, 31 Oct 2004 01:14:09 +0800 (CST)
Subject: [vtkusers] =?gb2312?b?SG93IHRvIHVzZSB0aGUgbWV0aG9kIKGwQWRkT2Jz?=
 =?gb2312?b?ZXJ2ZXKhsSB0aGF0IGxpZXMgaW4gdGhlIGZpbGUgobB2dGtPYmplY3QuamF2?=
 =?gb2312?b?YaGxPyhKYXZhKQ==?=
Message-ID: <4183CBE1.00012A.00167@bjapp14>

Hi,all

I am replant the example ?annotatePick.tcl? using Java. But I don?t how to use the method ?AddObserver? in java.

?AddObserver? method has three parameters. In C++, we can carry a function pointer as the second parameter, but in ?vtkObject.java?, the method defined as follow:

public native int AddObserver(String id0, Object id1, String id2);

so what can I do to translate the real parameter to the second formal parameter?

The script of annotatePick.tcl as follow:
???????.
# Create a cell picker.
vtkCellPicker picker
    picker AddObserver EndPickEvent annotatePick
???????.
# Create a Tcl procedure to create the text for the text mapper used to
# display the results of picking.
proc annotatePick {} {
    if { [picker GetCellId] 
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From kshivann at engineering.uiowa.edu  Sat Oct 30 18:44:52 2004
From: kshivann at engineering.uiowa.edu (kshivann at engineering.uiowa.edu)
Date: Sat, 30 Oct 2004 17:44:52 -0500
Subject: [vtkusers] vtkpicker examples
Message-ID: <1099176292.418419648ac5f@webmail.engineering.uiowa.edu>


hi,

does anyone have a simple example for vtkpicker.

thak you

kiran 



From jarek at ieee.org  Sat Oct 30 23:08:24 2004
From: jarek at ieee.org (Jarek Sacha)
Date: Sat, 30 Oct 2004 23:08:24 -0400
Subject: [vtkusers] How to use the method =?GB2312?B?obBBZGRPYnNlcnZl?=
	=?GB2312?B?cqGxIHRoYXQgbGllcyBpbiB0aGUgZmlsZSChsHZ0a09iamVjdC5qYXZhobE/KA==?=
	=?GB2312?B?SmF2YSk=?=
In-Reply-To: <4183CBE1.00012A.00167@bjapp14>
References: <4183CBE1.00012A.00167@bjapp14>
Message-ID: <41845728.5030702@ieee.org>

??:

Here is Java example of calling AddObserver():
picker.AddObserver("EndPickEvent", AnnotatePick.this, "annotatePick");

The first argument specifies the event you want to observe, second is a
reference of object that will handle callback, the third parameter is a
name of a method that should be called by callback.
Here is the full code of AnnotatePick.java
http://cvs.sourceforge.net/viewcvs.py/ij-plugins/VTK-Examples/Examples/Annotation/Java/AnnotatePick.java?rev=HEAD&view=auto

You can find Java version of AnnotatePick and over 70 other Java
examples at
http://ij-plugins.sourceforge.net/vtk-examples/

Jarek

?? wrote:

> Hi,all I am replant the example ?annotatePick.tcl? using Java. But I
> don?t how to use the method ?AddObserver? in java. ?AddObserver?
> method has three parameters. In C++, we can carry a function pointer
> as the second parameter, but in ?vtkObject.java?, the method defined
> as follow: public native int AddObserver(String id0, Object id1,
> String id2); so what can I do to translate the real parameter to the
> second formal parameter? The script of annotatePick.tcl as follow:
> ???????. # Create a cell picker. vtkCellPicker picker picker
> AddObserver EndPickEvent annotatePick ???????. # Create a Tcl
> procedure to create the text for the text mapper used to # display the
> results of picking. proc annotatePick {} { if { [picker GetCellId] < 0
> } { textActor VisibilityOff } else { set selPt [picker
> GetSelectionPoint] set x [lindex $selPt 0] set y [lindex $selPt 1] set
> pickPos [picker GetPickPosition] set xp [lindex $pickPos 0] set yp
> [lindex $pickPos 1] set zp [lindex $pickPos 2] textMapper SetInput
> "($xp, $yp, $zp)" textActor SetPosition $x $y textActor VisibilityOn }
> renWin Render } Thanks in advance. 




From sscomp2004 at yahoo.com.au  Sun Oct 31 02:14:04 2004
From: sscomp2004 at yahoo.com.au (s comp)
Date: Sun, 31 Oct 2004 18:14:04 +1100 (EST)
Subject: [vtkusers] How to vary transparency of actor with time?
Message-ID: <20041031071404.90580.qmail@web61110.mail.yahoo.com>

How to vary transparency of actor with time?
 
So that it fades away gradually
 
Thanks,
 
Sonam



---------------------------------
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From sqsavage at tom.com  Sun Oct 31 04:08:20 2004
From: sqsavage at tom.com (=?gb2312?B?U2F2YWdl?=)
Date: Sun, 31 Oct 2004 17:08:20 +0800 (CST)
Subject: =?gb2312?B?Rnc6IFJlOiBSZTogW3Z0a3VzZXJzXSBXaHkgSWNhbqGvdCBzZWUgdGg=?=
	=?gb2312?B?ZSBWVEsgc291cmNlIGNvZGU/KFNvdXJjZSBDb2RlKQ==?=
Message-ID: <4184AB84.00004F.02878@bjapp16>


===============================================
????? http://sms.tom.com/index2.php?inc=3&type=24
?????? http://sms.tom.com/index2.php?inc=3&type=26
????? http://sms.tom.com/index2.php?inc=3&type=25

????? http://sms.tom.com/index2.php?inc=2
????? http://sms.tom.com/index2.php?inc=2&type=3740
????? http://sms.tom.com/index2.php?inc=2&type=30

???? http://sms.tom.com/index2.php?inc=song
===============================================
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From sqsavage at tom.com  Sun Oct 31 04:08:45 2004
From: sqsavage at tom.com (=?gb2312?B?U2F2YWdl?=)
Date: Sun, 31 Oct 2004 17:08:45 +0800 (CST)
Subject: [vtkusers] =?gb2312?b?V2h5IEljYW6hr3Qgc2VlIHRoZSBWVEsgc291cmNl?=
 =?gb2312?b?IGNvZGU/KFNvdXJjZSBDb2RlLHRvbyk=?=
Message-ID: <4184AB9D.000075.02294@bjapp16>


===============================================
????? http://sms.tom.com/index2.php?inc=3&type=24
?????? http://sms.tom.com/index2.php?inc=3&type=26
????? http://sms.tom.com/index2.php?inc=3&type=25

????? http://sms.tom.com/index2.php?inc=2
????? http://sms.tom.com/index2.php?inc=2&type=3740
????? http://sms.tom.com/index2.php?inc=2&type=30

???? http://sms.tom.com/index2.php?inc=song
===============================================
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From g.momferratos at echonet.gr  Sun Oct 31 07:21:53 2004
From: g.momferratos at echonet.gr (Giorgos Momferratos)
Date: Sun, 31 Oct 2004 14:21:53 +0200
Subject: [vtkusers] Legacy VTK Structured Grid Binary output 
Message-ID: <200410311421.53630.g.momferratos@echonet.gr>

Hallo vtkusers!
	I've been trying to get legacy vtk (.vtk) output from the following c 
routine:
#include <stdio.h>

void vtk_output_(int *pimax, int *pjmax, int *pkmax, double *x, double *area, 
double *theta, double *asp) {
    int imax,jmax,kmax;
    int ncoor, npts;
    int i, j;
    FILE *gf;
    /*x are the coordinates of the rectilinear grid*/
    /*area, theta, asp are point data*/	
    gf=fopen("b.vtk","w");
    imax=*pimax;
    jmax=*pjmax;
    kmax=*pkmax;
    ncoor=3*imax*jmax*kmax;
    npts=imax*jmax*kmax;
    
    /*vtk output*/
    fprintf(gf, "# vtk DataFile Version 2.0\n");
    fprintf(gf, "Elliptic grid\n");
    fprintf(gf, "BINARY\n");
    fprintf(gf, "\n");
    fprintf(gf, "DATASET STRUCTURED_GRID\n");
    fprintf(gf, "DIMENSIONS  %d  %d  %d\n", imax, jmax, kmax);
    fprintf(gf, "POINTS  %d  double\n", npts);
    fprintf(gf, "\n");
    fwrite(x,sizeof(double),(size_t)ncoor,gf);
    fprintf(gf, "\n");
    fprintf(gf, "FIELD metrics 3\n");
    fprintf(gf, "area  1 %d  double\n", (size_t)npts);
    fwrite(area,sizeof(double),(size_t)npts,gf);
    fprintf(gf, "\n");
    fprintf(gf, "theta 1 %d  double\n",npts);
    fwrite(theta,sizeof(double),(size_t)npts,gf);
    fprintf(gf, "\n");
    fprintf(gf, "aspectratio  1 %d  double\n",(size_t)npts);
    fwrite(asp,sizeof(double),(size_t)npts,gf);
    fprintf(gf, "\n");
    fclose(gf);
    return;
}

As you can see, the dataset is a structured grid with a 3-scalar field. 
My goal is to write it down so i can read it and visualise it in paraview.
I'd like to write binary data because of disk space and cpu time limitations.
Data comes from an f95 program.
If i write my dataset and points in ascii, everything works fine (the f95-c 
interface works fine), but when I am trying to write them in binary, paraview 
either reads completely wrong data, either chrashes immediatelly (depending 
on the presence of newlines before and after binary data). The .pdf 
describing the vtk fileformats offers no help on this issue. I would be very 
grateful if anyone could correct the above code, or even better, point me to 
information about writing such datasets through vtk library calls.

Thanx for your help.






From bluehorse at digitus.cz  Sun Oct 31 10:17:57 2004
From: bluehorse at digitus.cz (Andreas Bednarek)
Date: Sun, 31 Oct 2004 16:17:57 +0100
Subject: [vtkusers] VTK good for games?
Message-ID: <006601c4bf5c$d2352050$a3c77252@ziho>

Hello,
thank you all for tips
 
 maybe you have a look at Irrlicht at http://irrlicht.sourceforge.net/
 
 Yes, became a serious adept, didn't hear of it before.
 
 O.k., to make it short, thanks again (not a VTK topic anymore..)
 
 Regards
 A.B.
 



From kenneth.gage at gmail.com  Sun Oct 31 17:14:33 2004
From: kenneth.gage at gmail.com (Kenneth Gage)
Date: Sun, 31 Oct 2004 17:14:33 -0500
Subject: [vtkusers] unable to read multiple parts with vtkEnSightReader and
	derivative classes - VTK 4.4.2 on Linux
Message-ID: <cc005638041031141424669b40@mail.gmail.com>

Hello -

I am having much trouble reading multiple parts from an EnSight6 file
output from FLUENT.  When I use CastToConcrete and GeometryFilter as
shown in the examples, I can only view the first part in my file. 
Despite reading through both the VTK manual and textbook, I haven't
been able to figure out how to gain access to the other parts in the
file; Is there a way to request the number of geometric parts and read
a specific part for processing?

Apologies in advance if I am missing something obvious; I'm stuck at
square one and have been for some time.

Thanks!
Ken

-- 
Kenneth Gage
MD-PhD Student
McGowan Institute for Regenerative Medicine
University of Pittsburgh
Pittsburgh, PA 15203-2155


From pallavi.joshi at vanderbilt.edu  Sun Oct 31 17:52:50 2004
From: pallavi.joshi at vanderbilt.edu (Pallavi Joshi)
Date: Sun, 31 Oct 2004 16:52:50 -0600
Subject: [vtkusers] vtkImageStencil algorithm
Message-ID: <000a01c4bf9c$59c36ec0$da593b81@Pallavi>

Hi,
I would like to know how are two images combined in a vtkImageStencil. What I specifically want to know is if I have a polygonal mesh representing a structure and I create an image of say 256x256x256 dimensions and I want to combine these two, then will they be combined by simply taking nearest neighbors of the mesh on the image grid ? 

Please let me know....

thank you,
pallavi
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From kshivann at engineering.uiowa.edu  Sun Oct 31 18:05:47 2004
From: kshivann at engineering.uiowa.edu (kshivann at engineering.uiowa.edu)
Date: Sun, 31 Oct 2004 17:05:47 -0600
Subject: [vtkusers] how vtkpointpicker->getpickposition works
Message-ID: <1099263947.41856fcb4a854@webmail.engineering.uiowa.edu>

hi,
  i am using vtkpointpicker->getpickposition. some how the values that i get 
are not correct. does anyone know how does vtkpointpicker->getpickposition 
works. And also is there a way to disable rotations from mouse interaction.

thanks

kiran





From mathieu.malaterre at kitware.com  Sun Oct 31 18:19:04 2004
From: mathieu.malaterre at kitware.com (Mathieu Malaterre)
Date: Sun, 31 Oct 2004 18:19:04 -0500
Subject: [vtkusers] unable to read multiple parts with vtkEnSightReader and
Message-ID: <20041031231904.BVKF9098.fep02.biz.rr.com@[127.0.0.1]>

Ken,

  Are you using:

vtkGenericEnSightReader::ReadAllVariablesOn ?

http://www.vtk.org/doc/nightly/html/classvtkGenericEnSightReader.html#z2815_0

HTH
Mathieu

> 
> Hello -
> 
> I am having much trouble reading multiple parts from an EnSight6 file
> output from FLUENT.  When I use CastToConcrete and GeometryFilter as
> shown in the examples, I can only view the first part in my file. 
> Despite reading through both the VTK manual and textbook, I haven't
> been able to figure out how to gain access to the other parts in the
> file; Is there a way to request the number of geometric parts and read
> a specific part for processing?
> 
> Apologies in advance if I am missing something obvious; I'm stuck at
> square one and have been for some time.
> 
> Thanks!
> Ken
> 
> -- 
> Kenneth Gage
> MD-PhD Student
> McGowan Institute for Regenerative Medicine
> University of Pittsburgh
> Pittsburgh, PA 15203-2155
> _______________________________________________
> This is the private VTK discussion list. 
> Please keep messages on-topic. Check the FAQ at: <http://public.kitware.com/cgi-bin/vtkfaq>
> Follow this link to subscribe/unsubscribe:
> http://www.vtk.org/mailman/listinfo/vtkusers
> 




From sqsavage at tom.com  Sun Oct 31 21:43:16 2004
From: sqsavage at tom.com (=?gb2312?B?U2F2YWdl?=)
Date: Mon, 1 Nov 2004 10:43:16 +0800 (CST)
Subject: [vtkusers] =?gb2312?b?V2h5IHRoZSChsFJlbmRlckNyZWF0ZaGxY2Fubm90?=
 =?gb2312?b?IGZpbmQ/KEphdmEsQ1hYKQ==?=
Message-ID: <4185A2C4.000088.21492@bjapp17>

Why the ?RenderCreate?cannot find?

Hi?all.


But When Run the example ?Annotation? download by 
http://cvs.sourceforge.net/viewcvs.py/ij-plugins/VTK-Examples/Examples/Annotation/Java/AnnotatePick.java?rev=HEAD&view=auto

An error occurred:
java.lang.UnsatisfiedLinkError: RenderCreate 	at annotatepick.vtkPanel.RenderCreate(Native Method) 
I found that the RenderCreate method defined in  ?vtkPanel.java? lies in vtkRenderingJava.dll:
000004B1	10003E86	_Java_vtk_vtkPanel_RenderCreate at 12

 Why JBuilderX cannot found it?

My OS is WinXP professional. I am using JBuilderX. I had suceed to run the example "cone". So I thought I have load the following *.dll file successfully:
System.loadLibrary("vtkCommonJava");
    System.loadLibrary("vtkFilteringJava");
    System.loadLibrary("vtkIOJava");
    System.loadLibrary("vtkImagingJava");
    System.loadLibrary("vtkGraphicsJava");
System.loadLibrary("vtkRenderingJava");

Thanks in advance.
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From sqsavage at tom.com  Sun Oct 31 21:45:17 2004
From: sqsavage at tom.com (=?gb2312?B?U2F2YWdl?=)
Date: Mon, 1 Nov 2004 10:45:17 +0800 (CST)
Subject: [vtkusers] =?gb2312?b?V2h5IHRoZSChsFJlbmRlckNyZWF0ZaGxbWV0aG9k?=
 =?gb2312?b?IGNhbm5vdCBmaW5kPw==?=
Message-ID: <4185A33D.0000FE.08860@bjapp17>

Why the ?RenderCreate?method cannot find?

Hi?all.


But When Run the example ?Annotation? download by 
http://cvs.sourceforge.net/viewcvs.py/ij-plugins/VTK-Examples/Examples/Annotation/Java/AnnotatePick.java?rev=HEAD&view=auto

An error occurred:
java.lang.UnsatisfiedLinkError: RenderCreate 	at annotatepick.vtkPanel.RenderCreate(Native Method) 
I found that the RenderCreate method defined in  ?vtkPanel.java? lies in vtkRenderingJava.dll:
000004B1	10003E86	_Java_vtk_vtkPanel_RenderCreate at 12

 Why JBuilderX cannot found it?

My OS is WinXP professional. I am using JBuilderX. I had suceed to run the example "cone". So I thought I have load the following *.dll file successfully:
System.loadLibrary("vtkCommonJava");
    System.loadLibrary("vtkFilteringJava");
    System.loadLibrary("vtkIOJava");
    System.loadLibrary("vtkImagingJava");
    System.loadLibrary("vtkGraphicsJava");
System.loadLibrary("vtkRenderingJava");

Thanks in advance.
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From sqsavage at tom.com  Sun Oct 31 22:00:45 2004
From: sqsavage at tom.com (=?gb2312?B?U2F2YWdl?=)
Date: Mon, 1 Nov 2004 11:00:45 +0800 (CST)
Subject: [vtkusers] Where is the environment "CMAKE_BUILT_TYPE" In
 CMake?(source code)
Message-ID: <4185A6DD.000001.07427@bjapp17>

Where is the environment "CMAKE_BUILT_TYPE" In CMake?

Hi, all.

Luca told me that when change the environment "CMAKE_BUILT_TYPE" to debug, then Ican build the VTK project can see all the source. When I run the CMake, I clicked the ?Show Advanced Values? and look for it. But I cannot find this environment. Where is it?


At the beginning, in Cmake environment, change CMAKE_BUILT_TYPE to Debug.
Bye

Luca

?? wrote:

> Why I can?t see the VTK source code?(Source Code) Hi, all. I had 
> downloaded the VTK source code and make a VC-project using CMake. In 
> CMake, I turn the Cache Values vtk_USE_RENDERING, VTK_WRAP_JAVA on. 
> But after I open this project using VC6.0, I found that I can?t see 
> the source code of some function. Take the VTKIOJava 
> classes-->VTKIWriter-->WriteData() for example. When double click the 
> string ?WriteData()?, threr is an warning apprearing ?Cannot find the 
> definition (implementation) of this function.? So I can?t see the 
> source code of the function ?WriteData()?. Why? And How can I solute 
> this problem? Thanks in advance.
>
>_______________________________________________
>This is the private VTK discussion list. 
>Please keep messages on-topic. Check the FAQ at: 
>Follow this link to subscribe/unsubscribe:
>http://www.vtk.org/mailman/listinfo/vtkusers
>  
>


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From p3rdigao at netcabo.pt  Sat Oct 16 19:36:21 2004
From: p3rdigao at netcabo.pt (p3rdigao)
Date: Sat, 16 Oct 2004 23:36:21 -0000
Subject: [vtkusers] Once Again....because i didnt get reply the first
	time....how can i solve this problem in VS .Net 2003???
Message-ID: <F60ADD7EC4769848922D798EBE8DD8E904AAD654@VS2.hdi.tvcabo>


The Progran in VS .Net 2003
 
#include "vtkDataSetReader.h"

#include "vtkDataSetWriter.h" 

#include "vtkDataSet.h"

void main(int argc, char *argv[]){

vtkDataSetReader* reader = vtkDataSetReader::New(); 

reader->SetFileName("c:\braquial.vtk"); 

reader->GetOutput();

vtkDataSetWriter *writer=NULL;

writer->SetFileName("foo-ascii.vtk");

 

}

 

The errors

 

1) test error LNK2001: unresolved external symbol "public: class vtkDataSet * __thiscall vtkDataSetReader::GetOutput(void)" (?GetOutput at vtkDataSetReader@@$$FQAEPAVvtkDataSet@@XZ)


 

~2) test error LNK2001: unresolved external symbol "public: static class vtkDataSetReader * __cdecl vtkDataSetReader::New(void)" (?New at vtkDataSetReader@@$$FSAPAV1 at XZ)


 

 

 

3) test fatal error LNK1120: 2 unresolved externals



 

 

 

 



From mathieu.malaterre at kitware.com  Sat Oct 16 20:25:45 2004
From: mathieu.malaterre at kitware.com (Mathieu Malaterre)
Date: Sun, 17 Oct 2004 00:25:45 -0000
Subject: [vtkusers] Once Again....because i didnt get reply the first
Message-ID: <20041017002537.JXFS8244.fep01.biz.rr.com@[127.0.0.1]>

p3rdigao,

I bet you didn't link againt vtkIO (where vtkDataSetReader is defined), so the linker can not find the symbol.

HTH
Mathieu

> 
> The Progran in VS .Net 2003
>  
> #include "vtkDataSetReader.h"
> 
> #include "vtkDataSetWriter.h" 
> 
> #include "vtkDataSet.h"
> 
> void main(int argc, char *argv[]){
> 
> vtkDataSetReader* reader = vtkDataSetReader::New(); 
> 
> reader->SetFileName("c:\braquial.vtk"); 
> 
> reader->GetOutput();
> 
> vtkDataSetWriter *writer=NULL;
> 
> writer->SetFileName("foo-ascii.vtk");
> 
>  
> 
> }
> 
>  
> 
> The errors
> 
>  
> 
> 1) test error LNK2001: unresolved external symbol "public: class vtkDataSet * __thiscall vtkDataSetReader::GetOutput(void)" (?GetOutput at vtkDataSetReader@@$$FQAEPAVvtkDataSet@@XZ)
> 
> 
>  
> 
> ~2) test error LNK2001: unresolved external symbol "public: static class vtkDataSetReader * __cdecl vtkDataSetReader::New(void)" (?New at vtkDataSetReader@@$$FSAPAV1 at XZ)
> 
> 
>  
> 
>  
> 
>  
> 
> 3) test fatal error LNK1120: 2 unresolved externals
> 
> 
> 
>  
> 
>  
> 
>  
> 
>  
> 
> _______________________________________________
> This is the private VTK discussion list.
> Please keep messages on-topic. Check the FAQ at: <http://public.kitware.com/cgi-bin/vtkfaq>
> Follow this link to subscribe/unsubscribe:
> http://www.vtk.org/mailman/listinfo/vtkusers
>