From Mark.Newiger@post.RWTH-Aachen.DE Thu Aug 2 16:36:16 2001 From: Mark.Newiger@post.RWTH-Aachen.DE (Mark Newiger) Date: Thu, 02 Aug 2001 17:36:16 +0200 Subject: [vtkusers] ok Message-ID: <01C11B79.A3AB7480@s4m115.dialup.RWTH-Aachen.DE> confirm 275156 -----Ursprüngliche Nachricht----- Von: Mark Newiger [SMTP:mark.newiger@post.rwth-aachen.de] Gesendet am: Dienstag, 3. Juli 2001 13:24 An: mark.newiger@post.rwth-aachen.de Betreff: [Fwd: vtkusers -- confirmation of subscription -- request 275156] -------- Original Message -------- Subject: vtkusers -- confirmation of subscription -- request 275156 Date: Mon, 02 Jul 2001 13:11:25 -0400 From: vtkusers-request@public.kitware.com Reply-To: vtkusers-request@public.kitware.com To: mark.newiger@post.rwth-aachen.de vtkusers -- confirmation of subscription -- request 275156 We have received a request from 137.226.8.86 for subscription of your email address, , to the vtkusers@public.kitware.com mailing list. To confirm the request, please send a message to vtkusers-request@public.kitware.com, and either: - maintain the subject line as is (the reply's additional "Re:" is ok), - or include the following line - and only the following line - in the message body: confirm 275156 (Simply sending a 'reply' to this message should work from most email interfaces, since that usually leaves the subject line in the right form.) If you do not wish to subscribe to this list, please simply disregard this message. Send questions to vtkusers-admin@public.kitware.com. From robmitch@eng.uts.edu.au Wed Aug 1 03:03:33 2001 From: robmitch@eng.uts.edu.au (Robert Mitchell) Date: Wed, 01 Aug 2001 12:03:33 +1000 Subject: [vtkusers] Large Image rendered white? Message-ID: <3B676375.E96EE875@eng.uts.edu.au> Dear Users, I am reading in a large (10MB) Bitmap (vtkBMPReader) and rendering it with a vtkImageActor having been passed through vtkImageLuminance (see previous message re:Dynamic Pipeline changes). The problem is that the whole image is rendered completely white, although when I clip the data and only render the clipped extent, it does it properly. Is there some limit on the size of the extent to render properly, or is there some caching things that need to be attended to? Cheers, Rob -- Robert Mitchell Faculty of Engineering University of Technology, Sydney +61 2 9514 2317 From jbiddiscombe@skippingmouse.co.uk Wed Aug 1 03:33:25 2001 From: jbiddiscombe@skippingmouse.co.uk (John Biddiscombe) Date: Wed, 01 Aug 2001 03:33:25 +0100 Subject: [vtkusers] Large Image rendered white? In-Reply-To: <3B676375.E96EE875@eng.uts.edu.au> Message-ID: <5.0.0.25.0.20010801033244.033f3010@mail.btinternet.com> glGetIntegerv(GL_MAX_TEXTURE_SIZE, ¶ms); if your bitmap is bigger than this, then it won't be displayed correctly JB At 03:03 01/08/2001, Robert Mitchell wrote: >Dear Users, > >I am reading in a large (10MB) Bitmap (vtkBMPReader) and rendering it >with a vtkImageActor having been passed through vtkImageLuminance (see >previous message re:Dynamic Pipeline changes). The problem is that the >whole image is rendered completely white, although when I clip the data >and only render the clipped extent, it does it properly. Is there some >limit on the size of the extent to render properly, or is there some >caching things that need to be attended to? >Cheers, >Rob > >-- >Robert Mitchell >Faculty of Engineering >University of Technology, Sydney >+61 2 9514 2317 > > > >_______________________________________________ >This is the private VTK discussion list. >Please keep messages on-topic. Check the FAQ at: > >Follow this link to subscribe/unsubscribe: >http://public.kitware.com/mailman/listinfo/vtkusers From c-attanasio@paris1.matra-dtv.fr Wed Aug 1 13:04:35 2001 From: c-attanasio@paris1.matra-dtv.fr (Christophe ATTANASIO (cai)) Date: Wed, 01 Aug 2001 14:04:35 +0200 Subject: [vtkusers] Fps in VTK Message-ID: <3B67F053.B1BE4E63@paris1.matra-dtv.fr> Hello all, Is there a way to display dynamically the fps (frame per seconds) in a VTK viewer ? I use a vtkRenderWindowInteractor to display large STL mesh. Thanks for your help Christophe. -- Christophe ATTANASIO Open CASCADE email : c-attanasio@opencascade.com http://www.opencascade.com Open CASCADE, the Open Source Standard for 3D modeling solutions From J.A.Schaap@lumc.nl Wed Aug 1 13:15:09 2001 From: J.A.Schaap@lumc.nl (Schaap, J.A. (LKEB)) Date: Wed, 01 Aug 2001 14:15:09 +0200 Subject: [vtkusers] Fps in VTK Message-ID: <200108011210.IAA16538@public.kitware.com> vtkRenderer::GetLastRenderTimeInSeconds () 1-8-2001 14:04:35, "Christophe ATTANASIO (cai)" wrote: > >Hello all, > >Is there a way to display dynamically the fps (frame per seconds) in a >VTK viewer ? >I use a vtkRenderWindowInteractor to display large STL mesh. > >Thanks for your help >Christophe. > >-- >Christophe ATTANASIO >Open CASCADE >email : c-attanasio@opencascade.com >http://www.opencascade.com >Open CASCADE, the Open Source Standard for 3D modeling solutions > > > >_______________________________________________ >This is the private VTK discussion list. >Please keep messages on-topic. Check the FAQ at: >Follow this link to subscribe/unsubscribe: >http://public.kitware.com/mailman/listinfo/vtkusers > From rene.hommel@addcom.de Wed Aug 1 13:54:07 2001 From: rene.hommel@addcom.de (Rene Hommel) Date: Wed, 01 Aug 2001 14:54:07 +0200 Subject: [vtkusers] Problems on SuSE7.0 and VTK3.2 Message-ID: <3B67FBEF.42112AC4@addcom.de> VTK3.2 compile problems on SuSE7.0: Configuration: ./configure --with-shared --with-contrib --with-tcl --with-tkwidget --with-mesa --with-python System: gpp-2.95.2 libc-2.1.3 mesa-3.2-41 (incl. mesadev) tcl-8.3.1 (incl. header files) python-1.5.2 My user.make: TCL_INCLUDE=-I/usr/include TCL_LIB=/usr/lib/libtcl8.3.so TK_INCLUDE=-I/usr/include TK_LIB=/usr/lib/libtk8.3.so MESA_INCLUDE=-I/usr/include/GL MESA_LIB=/usr/lib/libMesaGL.so PYTHON_INCLUDES=-I/usr/include/python Error message: make[1]: Leaving directory `/opt/PAKETE/VTK-3.2/vtk3.2/contrib' cd tcl; make - vtk make[1]: Entering directory `/opt/PAKETE/VTK-3.2/vtk3.2/tcl' c++ -g -O2 -fPIC -I. -I./../common -I../common -I/usr/include -I/usr/include -I/usr/include/GL -I/usr/X11R6/include -I./../graphics -DVTK_USE_GRAPHICS -I./../imaging -DVTK_USE_IMAGING -I./../contrib -DVTK_USE_CONTRIB -c -o tkAppInit.o ./tkAppInit.cxx c++ -o vtk tkAppInit.o \ -L. -g -O2 -fPIC -I. -I./../common -I../common -I/usr/include -I/usr/include -I/usr/include/GL -I/usr/X11R6/include -I./../graphics -DVTK_USE_GRAPHICS -I./../imaging -DVTK_USE_IMAGING -I./../contrib -DVTK_USE_CONTRIB -rdynamic -L/opt/PAKETE/VTK-3.2/vtk3.2/contrib -lVTKContribTcl -lVTKContrib -L/opt/PAKETE/VTK-3.2/vtk3.2/imaging -lVTKImagingTcl -lVTKImaging -L/opt/PAKETE/VTK-3.2/vtk3.2/graphics -lVTKGraphicsTcl -lVTKGraphics -L../common -lVTKCommonTcl -lVTKCommon -L/usr/X11R6/lib /usr/lib/libMesaGL.so /usr/lib/libtk8.3.so /usr/lib/libtcl8.3.so -ldl -lpthread \ -L/usr/X11R6/lib -lXext -lXt -lSM -lICE -lX11 -lm /opt/PAKETE/VTK-3.2/vtk3.2/imaging/libVTKImaging.so: undefined reference to `OSMesaMakeCurrent' /opt/PAKETE/VTK-3.2/vtk3.2/imaging/libVTKImaging.so: undefined reference to `OSMesaCreateContext' /opt/PAKETE/VTK-3.2/vtk3.2/imaging/libVTKImaging.so: undefined reference to `OSMesaDestroyContext' collect2: ld returned 1 exit status make[1]: *** [vtk] Error 1 make[1]: Leaving directory `/opt/PAKETE/VTK-3.2/vtk3.2/tcl' make: *** [build_tcl] Error 2 I guess: `OSMesaMakeCurrent' o.s.o. are in /usr/include/GL/osmesa.h #ll /usr/include/GL -rw-r--r-- 1 root root 77761 Jul 29 2000 gl.h -rw-r--r-- 1 root root 21360 Jul 29 2000 gl_mangle.h -rw-r--r-- 1 root root 15441 Jul 29 2000 glu.h -rw-r--r-- 1 root root 3335 Jul 29 2000 glu_mangle.h -rw-r--r-- 1 root root 29986 Jul 29 2000 glut.h -rw-r--r-- 1 root root 4113 Jul 29 2000 glutf90.h -rw-r--r-- 1 root root 5827 Jul 29 2000 glx.h -rw-r--r-- 1 root root 2464 Jul 29 2000 glx_mangle.h -rw-r--r-- 1 root root 7358 Jul 29 2000 osmesa.h -rw-r--r-- 1 root root 9281 Jul 29 2000 xmesa.h -rw-r--r-- 1 root root 3593 Jul 29 2000 xmesa_x.h -rw-r--r-- 1 root root 6056 Jul 29 2000 xmesa_xf86.h Where is the Problem? More configuration details on request! Please help! Regards, Rene Hommel From A.Meijster@rc.rug.nl Wed Aug 1 17:05:08 2001 From: A.Meijster@rc.rug.nl (A. Meijster) Date: Wed, 01 Aug 2001 18:05:08 +0200 Subject: [vtkusers] Stereo on an ONYX3400 Message-ID: <3B6828B4.DCFB15DC@rc.rug.nl> Hi All, We have a brand new ONYX 3400 with shutter glasses. We are able to run several 3D stereo demo's from SGI, and were also able to compile some on stereo glut programs. Now my problem. I compiled VTK for this machine, and tried to use the stereo capabilities by simply pressing '3' in the render window. Then the system replies (on stderr) that the system has not Crystal glasses capabilities. In my view this should be working on an ONYX, since GL-stereo is obviously supported. Anyone got this working? Cheers, Arnold Meijster (a.meijster@rc.rug.nl) From leung@arlut.utexas.edu Wed Aug 1 17:35:32 2001 From: leung@arlut.utexas.edu (leung@arlut.utexas.edu) Date: Wed, 1 Aug 2001 11:35:32 -0500 Subject: [vtkusers] Plotting individual X and Y points using vtkXYPlotActor Message-ID: Hi, I am wondering if anyone has any examples of plotting individual X and Y points using vtkXYPlotActor. Thanks. Al From jonesde@rainbow.es.dupont.com Wed Aug 1 17:35:38 2001 From: jonesde@rainbow.es.dupont.com (David E. Jones) Date: Wed, 01 Aug 2001 12:35:38 -0400 Subject: [vtkusers] Stereo on an ONYX3400 References: <3B6828B4.DCFB15DC@rc.rug.nl> Message-ID: <3B682FDA.6E02B68D@rainbow.es.dupont.com> --------------527D8543E7A56A377C26EC91 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit A. Meijster wrote: > Hi All, > > We have a brand new ONYX 3400 with shutter glasses. We > are able to run several 3D stereo demo's from SGI, and were also > able to compile some on stereo glut programs. > > Now my problem. I compiled VTK for this machine, > and tried to use the stereo capabilities by simply > pressing '3' in the render window. Then the system > replies (on stderr) that the system has > not Crystal glasses capabilities. In my view this should > be working on an ONYX, since GL-stereo is obviously > supported. Anyone got this working? > > Cheers, > > Arnold Meijster (a.meijster@rc.rug.nl) > I recently used vtk Crystal Eyes stereo on my Octane and I had to give this commend to enter stereo: /usr/gfx/setmon -n 1024x768_96s This resulted in "stereo in a window" which is really nice because nothing outside the window that you're interested in is affected. To get out of stereo I had to give this command: /usr/gfx/setmon -n 1280x1024_72 See "man setmon" for details. I don'know if the Onyx 3400 works the same way as the Octane MXI I used. Good Luck, Dave -- David E Jones Du Pont Central Research Experimental Station, Bldg 320 Wilmington, DE 19880-0320 --------------527D8543E7A56A377C26EC91 Content-Type: text/html; charset=us-ascii Content-Transfer-Encoding: 7bit A. Meijster wrote:
Hi All,

We have a brand new ONYX 3400 with shutter glasses. We
are able to run several 3D stereo demo's from SGI, and were also
able to compile some on stereo glut programs.

Now my problem. I compiled VTK for this machine,
and tried to use the stereo capabilities by simply
pressing '3' in the render window. Then the system
replies (on stderr) that the system has
not Crystal glasses capabilities. In my view this should
be working on an ONYX, since GL-stereo is obviously
supported. Anyone got this working?

Cheers,

   Arnold Meijster (a.meijster@rc.rug.nl)
 

 I recently used vtk Crystal Eyes stereo on my Octane and I had to
give this commend to enter stereo:

    /usr/gfx/setmon -n 1024x768_96s

This resulted in "stereo in a window" which is really nice because
 nothing outside the window that you're interested in is affected.

To get out of stereo I had to give this command:

   /usr/gfx/setmon -n 1280x1024_72

See "man setmon" for details.   I don'know if the Onyx  3400 works the
same way as the Octane MXI I used.

Good Luck,
Dave 

-- 
David E Jones
Du Pont Central Research
Experimental Station, Bldg 320
Wilmington, DE 19880-0320
  --------------527D8543E7A56A377C26EC91-- From berkgeveci@hotmail.com Wed Aug 1 17:44:06 2001 From: berkgeveci@hotmail.com (Berk Geveci) Date: Wed, 01 Aug 2001 12:44:06 -0400 Subject: [vtkusers] Problems on SuSE7.0 and VTK3.2 Message-ID: Don't use --with-mesa in configure. >From: Rene Hommel >Reply-To: rene.hommel@addcom.de >To: vtkusers >Subject: [vtkusers] Problems on SuSE7.0 and VTK3.2 >Date: Wed, 01 Aug 2001 14:54:07 +0200 > >VTK3.2 compile problems on SuSE7.0: > >Configuration: >./configure --with-shared --with-contrib --with-tcl --with-tkwidget >--with-mesa --with-python > >System: > gpp-2.95.2 > libc-2.1.3 > mesa-3.2-41 (incl. mesadev) > tcl-8.3.1 (incl. header files) > python-1.5.2 > >My user.make: > > TCL_INCLUDE=-I/usr/include > TCL_LIB=/usr/lib/libtcl8.3.so > > TK_INCLUDE=-I/usr/include > TK_LIB=/usr/lib/libtk8.3.so > > MESA_INCLUDE=-I/usr/include/GL > MESA_LIB=/usr/lib/libMesaGL.so > > PYTHON_INCLUDES=-I/usr/include/python > > >Error message: > >make[1]: Leaving directory `/opt/PAKETE/VTK-3.2/vtk3.2/contrib' >cd tcl; make - vtk >make[1]: Entering directory `/opt/PAKETE/VTK-3.2/vtk3.2/tcl' >c++ -g -O2 -fPIC -I. -I./../common -I../common -I/usr/include >-I/usr/include -I/usr/include/GL -I/usr/X11R6/include -I./../graphics >-DVTK_USE_GRAPHICS -I./../imaging -DVTK_USE_IMAGING -I./../contrib >-DVTK_USE_CONTRIB -c -o tkAppInit.o ./tkAppInit.cxx >c++ -o vtk tkAppInit.o \ >-L. -g -O2 -fPIC -I. -I./../common -I../common -I/usr/include >-I/usr/include -I/usr/include/GL -I/usr/X11R6/include -I./../graphics >-DVTK_USE_GRAPHICS -I./../imaging -DVTK_USE_IMAGING -I./../contrib >-DVTK_USE_CONTRIB -rdynamic -L/opt/PAKETE/VTK-3.2/vtk3.2/contrib >-lVTKContribTcl -lVTKContrib -L/opt/PAKETE/VTK-3.2/vtk3.2/imaging >-lVTKImagingTcl -lVTKImaging -L/opt/PAKETE/VTK-3.2/vtk3.2/graphics >-lVTKGraphicsTcl -lVTKGraphics -L../common -lVTKCommonTcl -lVTKCommon >-L/usr/X11R6/lib /usr/lib/libMesaGL.so /usr/lib/libtk8.3.so >/usr/lib/libtcl8.3.so -ldl -lpthread \ >-L/usr/X11R6/lib -lXext -lXt -lSM -lICE -lX11 -lm >/opt/PAKETE/VTK-3.2/vtk3.2/imaging/libVTKImaging.so: undefined reference >to `OSMesaMakeCurrent' >/opt/PAKETE/VTK-3.2/vtk3.2/imaging/libVTKImaging.so: undefined reference >to `OSMesaCreateContext' >/opt/PAKETE/VTK-3.2/vtk3.2/imaging/libVTKImaging.so: undefined reference >to `OSMesaDestroyContext' >collect2: ld returned 1 exit status >make[1]: *** [vtk] Error 1 >make[1]: Leaving directory `/opt/PAKETE/VTK-3.2/vtk3.2/tcl' >make: *** [build_tcl] Error 2 > >I guess: `OSMesaMakeCurrent' o.s.o. are in /usr/include/GL/osmesa.h > >#ll /usr/include/GL >-rw-r--r-- 1 root root 77761 Jul 29 2000 gl.h >-rw-r--r-- 1 root root 21360 Jul 29 2000 gl_mangle.h >-rw-r--r-- 1 root root 15441 Jul 29 2000 glu.h >-rw-r--r-- 1 root root 3335 Jul 29 2000 glu_mangle.h >-rw-r--r-- 1 root root 29986 Jul 29 2000 glut.h >-rw-r--r-- 1 root root 4113 Jul 29 2000 glutf90.h >-rw-r--r-- 1 root root 5827 Jul 29 2000 glx.h >-rw-r--r-- 1 root root 2464 Jul 29 2000 glx_mangle.h >-rw-r--r-- 1 root root 7358 Jul 29 2000 osmesa.h >-rw-r--r-- 1 root root 9281 Jul 29 2000 xmesa.h >-rw-r--r-- 1 root root 3593 Jul 29 2000 xmesa_x.h >-rw-r--r-- 1 root root 6056 Jul 29 2000 xmesa_xf86.h > > >Where is the Problem? More configuration details on request! Please >help! > >Regards, > >Rene Hommel > >_______________________________________________ >This is the private VTK discussion list. >Please keep messages on-topic. Check the FAQ at: > >Follow this link to subscribe/unsubscribe: >http://public.kitware.com/mailman/listinfo/vtkusers _________________________________________________________________ Get your FREE download of MSN Explorer at http://explorer.msn.com/intl.asp From rene.hommel@addcom.de Wed Aug 1 17:43:56 2001 From: rene.hommel@addcom.de (Rene Hommel) Date: Wed, 01 Aug 2001 18:43:56 +0200 Subject: [vtkusers] Problems on SuSE7.0 and VTK3.2 Message-ID: <3B6831CC.E71DA311@addcom.de> On Wed, 01 Aug 2001 12:44:06 -0400 "Berk Geveci" wrote: > > Don't use --with-mesa in configure. > I have to, because I will use VTK with MAYAVI data visualizer. what Mesa and Tcl Versions are recomended for VTK3.2 (or 3.1.2)?? > >VTK3.2 compile problems on SuSE7.0: > > > >Configuration: > >./configure --with-shared --with-contrib --with-tcl --with-tkwidget > >--with-mesa --with-python > > > >System: > > gpp-2.95.2 > > libc-2.1.3 > > mesa-3.2-41 (incl. mesadev) > > tcl-8.3.1 (incl. header files) > > python-1.5.2 > > > >My user.make: > > > > TCL_INCLUDE=-I/usr/include > > TCL_LIB=/usr/lib/libtcl8.3.so > > > > TK_INCLUDE=-I/usr/include > > TK_LIB=/usr/lib/libtk8.3.so > > > > MESA_INCLUDE=-I/usr/include/GL > > MESA_LIB=/usr/lib/libMesaGL.so > > > > PYTHON_INCLUDES=-I/usr/include/python > > > > > >Error message: > > > >make[1]: Leaving directory `/opt/PAKETE/VTK-3.2/vtk3.2/contrib' > >cd tcl; make - vtk > >make[1]: Entering directory `/opt/PAKETE/VTK-3.2/vtk3.2/tcl' > >c++ -g -O2 -fPIC -I. -I./../common -I../common -I/usr/include > >-I/usr/include -I/usr/include/GL -I/usr/X11R6/include > -I./../graphics > >-DVTK_USE_GRAPHICS -I./../imaging -DVTK_USE_IMAGING -I./../contrib > >-DVTK_USE_CONTRIB -c -o tkAppInit.o ./tkAppInit.cxx > >c++ -o vtk tkAppInit.o \ > >-L. -g -O2 -fPIC -I. -I./../common -I../common -I/usr/include > >-I/usr/include -I/usr/include/GL -I/usr/X11R6/include > -I./../graphics > >-DVTK_USE_GRAPHICS -I./../imaging -DVTK_USE_IMAGING -I./../contrib > >-DVTK_USE_CONTRIB -rdynamic -L/opt/PAKETE/VTK-3.2/vtk3.2/contrib > >-lVTKContribTcl -lVTKContrib -L/opt/PAKETE/VTK-3.2/vtk3.2/imaging > >-lVTKImagingTcl -lVTKImaging -L/opt/PAKETE/VTK-3.2/vtk3.2/graphics > >-lVTKGraphicsTcl -lVTKGraphics -L../common -lVTKCommonTcl -lVTKCommon > >-L/usr/X11R6/lib /usr/lib/libMesaGL.so /usr/lib/libtk8.3.so > >/usr/lib/libtcl8.3.so -ldl -lpthread \ > >-L/usr/X11R6/lib -lXext -lXt -lSM -lICE -lX11 -lm > >/opt/PAKETE/VTK-3.2/vtk3.2/imaging/libVTKImaging.so: undefined > reference > >to `OSMesaMakeCurrent' > >/opt/PAKETE/VTK-3.2/vtk3.2/imaging/libVTKImaging.so: undefined > reference > >to `OSMesaCreateContext' > >/opt/PAKETE/VTK-3.2/vtk3.2/imaging/libVTKImaging.so: undefined > reference > >to `OSMesaDestroyContext' > >collect2: ld returned 1 exit status > >make[1]: *** [vtk] Error 1 > >make[1]: Leaving directory `/opt/PAKETE/VTK-3.2/vtk3.2/tcl' > >make: *** [build_tcl] Error 2 > > > >I guess: `OSMesaMakeCurrent' o.s.o. are in /usr/include/GL/osmesa.h > > > >#ll /usr/include/GL > >-rw-r--r-- 1 root root 77761 Jul 29 2000 gl.h > >-rw-r--r-- 1 root root 21360 Jul 29 2000 gl_mangle.h > >-rw-r--r-- 1 root root 15441 Jul 29 2000 glu.h > >-rw-r--r-- 1 root root 3335 Jul 29 2000 glu_mangle.h > >-rw-r--r-- 1 root root 29986 Jul 29 2000 glut.h > >-rw-r--r-- 1 root root 4113 Jul 29 2000 glutf90.h > >-rw-r--r-- 1 root root 5827 Jul 29 2000 glx.h > >-rw-r--r-- 1 root root 2464 Jul 29 2000 glx_mangle.h > >-rw-r--r-- 1 root root 7358 Jul 29 2000 osmesa.h > >-rw-r--r-- 1 root root 9281 Jul 29 2000 xmesa.h > >-rw-r--r-- 1 root root 3593 Jul 29 2000 xmesa_x.h > >-rw-r--r-- 1 root root 6056 Jul 29 2000 xmesa_xf86.h > > > > > >Where is the Problem? More configuration details on request! Please > >help! From rene.hommel@addcom.de Wed Aug 1 17:48:45 2001 From: rene.hommel@addcom.de (Rene Hommel) Date: Wed, 01 Aug 2001 18:48:45 +0200 Subject: [vtkusers] Problems on SuSE7.0 and VTK3.2 Message-ID: <3B6832ED.2AECB4A7@addcom.de> I just finished a successful compilation run without --with-tcl ! so the cause of the problem seems the Tcl-Version tcl-8.3.1. what are you using? Rene From karshi.hasanov@utoronto.ca Wed Aug 1 18:38:51 2001 From: karshi.hasanov@utoronto.ca (Karshi Hasanov) Date: Wed, 1 Aug 2001 13:38:51 -0400 Subject: [vtkusers] SuSe7.0_VTK3.2 Message-ID: <01080113385100.02337@cr322577-a> On SuSe 7.0, I did "./confige --with-opengl" instead of " --with-mesa", and it worked for me. May be you should try it? ---------- Forwarded Message ---------- Subject: vtkusers digest, Vol 1 #503 - 8 msgs Date: Wed, 1 Aug 2001 12:00:07 -0400 From: vtkusers-admin@public.kitware.com To: vtkusers@public.kitware.com Send vtkusers mailing list submissions to vtkusers@public.kitware.com To subscribe or unsubscribe via the web, visit http://public.kitware.com/mailman/listinfo/vtkusers or, via email, send a message with subject or body 'help' to vtkusers-request@public.kitware.com You can reach the person managing the list at vtkusers-admin@public.kitware.com When replying, please edit your Subject line so it is more specific than "Re: Contents of vtkusers digest..." Today's Topics: 1. VRMLExporter bug? (sacha.jp@pg.com) 2. MRI Tiff stacks (Maneesh Yadav) 3. Large Image rendered white? (Robert Mitchell) 4. Re: Large Image rendered white? (John Biddiscombe) 5. Fps in VTK (Christophe ATTANASIO (cai)) 6. Re: Fps in VTK (Schaap, J.A. (LKEB)) 7. Problems on SuSE7.0 and VTK3.2 (Rene Hommel) 8. Stereo on an ONYX3400 (A. Meijster) --__--__-- Message: 1 From: sacha.jp@pg.com To: vtkusers@public.kitware.com Date: Tue, 31 Jul 2001 17:16:09 -0400 Subject: [vtkusers] VRMLExporter bug? Looks that VRMLExporter creates incorrect view point while saving VRML files. When the generated file is loaded into Cosmo Player the scene is typically somewhere off the screen. It takes some "blind" rotation and zooming before it shows in the field of view. Is there some way around it? Jarek --__--__-- Message: 2 Date: Tue, 31 Jul 2001 17:58:03 -0400 (EDT) From: Maneesh Yadav <97yadavm@utsc.utoronto.ca> To: Subject: [vtkusers] MRI Tiff stacks Hi all, Many moons ago I was trying to write some molecular viz stuff in vtk but it never turned out (not so much vtk's fault as it was sort of underlying molecular semantics that frusturated me) Anyhoo I'm back to vtk as I have some mouse embryo MRI data that I'd like to visualize and I've been given a tiff stack, which I really not sure how to process (is it just a concatenated set of tiff files?). I think Sebastien Barre's tutorial provides me with most of the other help I'll need. Any other advice from people who have done this sort of thing would be appreciated. Many Thanks, Maneesh Yadav --__--__-- Message: 3 Date: Wed, 01 Aug 2001 12:03:33 +1000 From: Robert Mitchell Organization: University of Technology, Sydney To: VTK USERS Subject: [vtkusers] Large Image rendered white? Dear Users, I am reading in a large (10MB) Bitmap (vtkBMPReader) and rendering it with a vtkImageActor having been passed through vtkImageLuminance (see previous message re:Dynamic Pipeline changes). The problem is that the whole image is rendered completely white, although when I clip the data and only render the clipped extent, it does it properly. Is there some limit on the size of the extent to render properly, or is there some caching things that need to be attended to? Cheers, Rob -- Robert Mitchell Faculty of Engineering University of Technology, Sydney +61 2 9514 2317 --__--__-- Message: 4 Date: Wed, 01 Aug 2001 03:33:25 +0100 To: Robert Mitchell , VTK USERS From: John Biddiscombe Subject: Re: [vtkusers] Large Image rendered white? glGetIntegerv(GL_MAX_TEXTURE_SIZE, ¶ms); if your bitmap is bigger than this, then it won't be displayed correctly JB At 03:03 01/08/2001, Robert Mitchell wrote: >Dear Users, > >I am reading in a large (10MB) Bitmap (vtkBMPReader) and rendering it >with a vtkImageActor having been passed through vtkImageLuminance (see >previous message re:Dynamic Pipeline changes). The problem is that the >whole image is rendered completely white, although when I clip the data >and only render the clipped extent, it does it properly. Is there some >limit on the size of the extent to render properly, or is there some >caching things that need to be attended to? >Cheers, >Rob > >-- >Robert Mitchell >Faculty of Engineering >University of Technology, Sydney >+61 2 9514 2317 > > > >_______________________________________________ >This is the private VTK discussion list. >Please keep messages on-topic. Check the FAQ at: > >Follow this link to subscribe/unsubscribe: >http://public.kitware.com/mailman/listinfo/vtkusers --__--__-- Message: 5 Date: Wed, 01 Aug 2001 14:04:35 +0200 From: "Christophe ATTANASIO (cai)" To: vtkusers@public.kitware.com Subject: [vtkusers] Fps in VTK Hello all, Is there a way to display dynamically the fps (frame per seconds) in a VTK viewer ? I use a vtkRenderWindowInteractor to display large STL mesh. Thanks for your help Christophe. -- Christophe ATTANASIO Open CASCADE email : c-attanasio@opencascade.com http://www.opencascade.com Open CASCADE, the Open Source Standard for 3D modeling solutions --__--__-- Message: 6 From: "Schaap, J.A. (LKEB)" To: Christophe ATTANASIO , vtkusers@public.kitware.com Date: Wed, 01 Aug 2001 14:15:09 +0200 Subject: Re: [vtkusers] Fps in VTK vtkRenderer::GetLastRenderTimeInSeconds () 1-8-2001 14:04:35, "Christophe ATTANASIO (cai)" wrote: >Hello all, > >Is there a way to display dynamically the fps (frame per seconds) in a >VTK viewer ? >I use a vtkRenderWindowInteractor to display large STL mesh. > >Thanks for your help >Christophe. > >-- >Christophe ATTANASIO >Open CASCADE >email : c-attanasio@opencascade.com >http://www.opencascade.com >Open CASCADE, the Open Source Standard for 3D modeling solutions > > > >_______________________________________________ >This is the private VTK discussion list. >Please keep messages on-topic. Check the FAQ at: > Follow this link to > subscribe/unsubscribe: >http://public.kitware.com/mailman/listinfo/vtkusers --__--__-- Message: 7 Date: Wed, 01 Aug 2001 14:54:07 +0200 From: Rene Hommel Reply-To: rene.hommel@addcom.de To: vtkusers Subject: [vtkusers] Problems on SuSE7.0 and VTK3.2 VTK3.2 compile problems on SuSE7.0: Configuration: ./configure --with-shared --with-contrib --with-tcl --with-tkwidget --with-mesa --with-python System: gpp-2.95.2 libc-2.1.3 mesa-3.2-41 (incl. mesadev) tcl-8.3.1 (incl. header files) python-1.5.2 My user.make: TCL_INCLUDE=-I/usr/include TCL_LIB=/usr/lib/libtcl8.3.so TK_INCLUDE=-I/usr/include TK_LIB=/usr/lib/libtk8.3.so MESA_INCLUDE=-I/usr/include/GL MESA_LIB=/usr/lib/libMesaGL.so PYTHON_INCLUDES=-I/usr/include/python Error message: make[1]: Leaving directory `/opt/PAKETE/VTK-3.2/vtk3.2/contrib' cd tcl; make - vtk make[1]: Entering directory `/opt/PAKETE/VTK-3.2/vtk3.2/tcl' c++ -g -O2 -fPIC -I. -I./../common -I../common -I/usr/include -I/usr/include -I/usr/include/GL -I/usr/X11R6/include -I./../graphics -DVTK_USE_GRAPHICS -I./../imaging -DVTK_USE_IMAGING -I./../contrib -DVTK_USE_CONTRIB -c -o tkAppInit.o ./tkAppInit.cxx c++ -o vtk tkAppInit.o \ -L. -g -O2 -fPIC -I. -I./../common -I../common -I/usr/include -I/usr/include -I/usr/include/GL -I/usr/X11R6/include -I./../graphics -DVTK_USE_GRAPHICS -I./../imaging -DVTK_USE_IMAGING -I./../contrib -DVTK_USE_CONTRIB -rdynamic -L/opt/PAKETE/VTK-3.2/vtk3.2/contrib -lVTKContribTcl -lVTKContrib -L/opt/PAKETE/VTK-3.2/vtk3.2/imaging -lVTKImagingTcl -lVTKImaging -L/opt/PAKETE/VTK-3.2/vtk3.2/graphics -lVTKGraphicsTcl -lVTKGraphics -L../common -lVTKCommonTcl -lVTKCommon -L/usr/X11R6/lib /usr/lib/libMesaGL.so /usr/lib/libtk8.3.so /usr/lib/libtcl8.3.so -ldl -lpthread \ -L/usr/X11R6/lib -lXext -lXt -lSM -lICE -lX11 -lm /opt/PAKETE/VTK-3.2/vtk3.2/imaging/libVTKImaging.so: undefined reference to `OSMesaMakeCurrent' /opt/PAKETE/VTK-3.2/vtk3.2/imaging/libVTKImaging.so: undefined reference to `OSMesaCreateContext' /opt/PAKETE/VTK-3.2/vtk3.2/imaging/libVTKImaging.so: undefined reference to `OSMesaDestroyContext' collect2: ld returned 1 exit status make[1]: *** [vtk] Error 1 make[1]: Leaving directory `/opt/PAKETE/VTK-3.2/vtk3.2/tcl' make: *** [build_tcl] Error 2 I guess: `OSMesaMakeCurrent' o.s.o. are in /usr/include/GL/osmesa.h #ll /usr/include/GL -rw-r--r-- 1 root root 77761 Jul 29 2000 gl.h -rw-r--r-- 1 root root 21360 Jul 29 2000 gl_mangle.h -rw-r--r-- 1 root root 15441 Jul 29 2000 glu.h -rw-r--r-- 1 root root 3335 Jul 29 2000 glu_mangle.h -rw-r--r-- 1 root root 29986 Jul 29 2000 glut.h -rw-r--r-- 1 root root 4113 Jul 29 2000 glutf90.h -rw-r--r-- 1 root root 5827 Jul 29 2000 glx.h -rw-r--r-- 1 root root 2464 Jul 29 2000 glx_mangle.h -rw-r--r-- 1 root root 7358 Jul 29 2000 osmesa.h -rw-r--r-- 1 root root 9281 Jul 29 2000 xmesa.h -rw-r--r-- 1 root root 3593 Jul 29 2000 xmesa_x.h -rw-r--r-- 1 root root 6056 Jul 29 2000 xmesa_xf86.h Where is the Problem? More configuration details on request! Please help! Regards, Rene Hommel --__--__-- Message: 8 Date: Wed, 01 Aug 2001 18:05:08 +0200 From: "A. Meijster" Organization: Center for High-Performance Computing and Visualization To: vtkusers@public.kitware.com Subject: [vtkusers] Stereo on an ONYX3400 Hi All, We have a brand new ONYX 3400 with shutter glasses. We are able to run several 3D stereo demo's from SGI, and were also able to compile some on stereo glut programs. Now my problem. I compiled VTK for this machine, and tried to use the stereo capabilities by simply pressing '3' in the render window. Then the system replies (on stderr) that the system has not Crystal glasses capabilities. In my view this should be working on an ONYX, since GL-stereo is obviously supported. Anyone got this working? Cheers, Arnold Meijster (a.meijster@rc.rug.nl) --__--__-- _______________________________________________ vtkusers mailing list vtkusers@public.kitware.com http://public.kitware.com/mailman/listinfo/vtkusers End of vtkusers Digest ------------------------------------------------------- From berkgeveci@hotmail.com Wed Aug 1 19:04:29 2001 From: berkgeveci@hotmail.com (Berk Geveci) Date: Wed, 01 Aug 2001 14:04:29 -0400 Subject: [vtkusers] Problems on SuSE7.0 and VTK3.2 Message-ID: If you really need the mesa classes (I never used mayavi so I don't know), you will have to get a mesa distribution which supports off-screen rendering. You might want to get the latest mesa (3.5) and compile it yourself. However, I would first compile vtk without mesa and try to run mayavi that way. >I just finished a successful compilation run without --with-tcl ! >so the cause of the problem seems the Tcl-Version tcl-8.3.1. The cause is not tcl. It's that if you compile without --with-tcl, no executables are generated and there are no resulting link errors. If you then go and try to compile a c++ example, you will get the same error. Berk _________________________________________________________________ Get your FREE download of MSN Explorer at http://explorer.msn.com/intl.asp From lisa.avila@kitware.com Thu Aug 2 03:57:25 2001 From: lisa.avila@kitware.com (Lisa Sobierajski Avila) Date: Wed, 01 Aug 2001 22:57:25 -0400 Subject: [vtkusers] Non-continuous lookup function In-Reply-To: Message-ID: <4.3.2.20010801225153.0284c200@pop.nycap.rr.com> Hello Ron, You should be able to use vtkColorTransferFunction for this (it is a subclass of vtkScalarsToColors just as vtkLookupTable is). Let e be some small epsilon value, min be the minimum value in your scalar range and max be the maximum - then you would do the following ctf = vtkColorTransferFunction::New(); ctf->AddRGBPoint( min, r1, g1, b1 ); ctf->AddRGBPoint( a-e, r1, g1, b1 ); ctf->AddRGBPoint( a, r2, g2, b2 ); ctf->AddRGBPoint( b, r2, g2, b2 ); ctf->AddRGBPoint( b+e, r3, g3, b3 ); ctf->AddRGBPoint( max, r3, g3, b3 ); This would set all values below a to (r1, g1, b1), those between a and b to (r2, g2, b2) and those above b to (r3, g3, b3). The problem you are having with vtkLookupTable is that the scalar value is implied from the number of entries and the scalar range. With vtkColorTransferFunction you have more control. Lisa At 12:09 PM 7/31/2001, Ron Inbar wrote: >Hi all, > >In my application, I want to paint all the cells whose scalar value falls >within a specified range in one color, and the rest of the cells in another >color. >The reasonable way to do this, in my opinion, is to set up a lookup table of >3 entries, corresponding to values below the minimum, within the range, and >above the maximum, in this order, and then have the vtkLookupTable object >map the scalar values as described above. But vtkLookupTable doesn't behave >this way. If I set the scalar range to be [a,b] then the value a will >always be mapped to entry 0 and the value b to entry 2, but intermediate >values close to the ends of the range will also be mapped to these entries. >I want a+epsilon and b-epsilon to be always mapped to entry 1, no matter how >small epsilon is. >Can I use vtkLookupTable or a subclass thereof to achieve the behavior I >need? > >Thanks in advance, > >Ron Inbar > > > >... >--- > > > >_______________________________________________ >This is the private VTK discussion list. >Please keep messages on-topic. Check the FAQ at: > >Follow this link to subscribe/unsubscribe: >http://public.kitware.com/mailman/listinfo/vtkusers From lisa.avila@kitware.com Thu Aug 2 04:20:13 2001 From: lisa.avila@kitware.com (Lisa Sobierajski Avila) Date: Wed, 01 Aug 2001 23:20:13 -0400 Subject: [vtkusers] VTK T-Shirt Contest deadline extended In-Reply-To: <3B682FDA.6E02B68D@rainbow.es.dupont.com> References: <3B6828B4.DCFB15DC@rc.rug.nl> Message-ID: <4.3.2.20010801230141.0285e340@pop.nycap.rr.com> Hello Everyone, By popular demand (well, actually because we'd like to have more than one entry to choose from...) we've decided to extend the VTK T-Shirt Design Contest. We are hoping that someone out there in the VTK community has more artistic talent than we do, and can come up with an eye-catching design that developers and users everywhere will be proud to wear. If your design is selected you will receive not only the immense satisfaction of knowing that you were selected as the most creative t-shirt designer in the entire VTK community but also not one, but two (yes, that is two!) free t-shirts! And, if you act quickly (definitely before August 27, 2001 when the contest ends) you can have the option of having those free t-shirts autographed by the entire Kitware staff! But wait - there's more! The lucky winner of the contest will receive two (I know it is hard to believe, but yes I did say two!) free VTK User's Guides! Keep one for yourself and send one to your Mom! But wait, there's more! Each of those beautifully bound VTK User's Guides comes with a VTK CD-ROM! You already have VTK? Well, don't worry - they make great coasters! Millions will enter, only one will win. OK - some will consider entering, hopefully a few actually will do it, and one person will win! Please send all submissions in electronic format to kitware@kitware.com with a subject of T-Shirt Contest. Thanks! Lisa From c.p.botha@its.tudelft.nl Thu Aug 2 07:28:59 2001 From: c.p.botha@its.tudelft.nl (Charl P. Botha) Date: Thu, 2 Aug 2001 08:28:59 +0200 Subject: [vtkusers] VTK T-Shirt Contest deadline extended In-Reply-To: <4.3.2.20010801230141.0285e340@pop.nycap.rr.com>; from lisa.avila@kitware.com on Wed, Aug 01, 2001 at 11:20:13PM -0400 References: <3B6828B4.DCFB15DC@rc.rug.nl> <3B682FDA.6E02B68D@rainbow.es.dupont.com> <4.3.2.20010801230141.0285e340@pop.nycap.rr.com> Message-ID: <20010802082859.A10881@dutidad.twi.tudelft.nl> *ROTFL* On Wed, Aug 01, 2001 at 11:20:13PM -0400, Lisa Sobierajski Avila wrote: > Contest. We are hoping that someone out there in the VTK community has more > artistic talent than we do, and can come up with an eye-catching design No-one in out here in the VTK community has a greater sense of humour though. Your "advert" was hilarious! -- charl p. botha | computer graphics and cad/cam http://cpbotha.net/ | http://www.cg.its.tudelft.nl/ From c-attanasio@paris1.matra-dtv.fr Thu Aug 2 10:07:45 2001 From: c-attanasio@paris1.matra-dtv.fr (Christophe ATTANASIO (cai)) Date: Thu, 02 Aug 2001 11:07:45 +0200 Subject: [vtkusers] Wireframe representation Message-ID: <3B691861.103BC266@paris1.matra-dtv.fr> Hello, I try to display a mesh in wireframe representation, but I would like to have the same color for each edges... I try to use vtkProperty but I cannot switch off the interpolation... Thanks for you help Christophe -- Christophe ATTANASIO Open CASCADE email : c-attanasio@opencascade.com http://www.opencascade.com Open CASCADE, the Open Source Standard for 3D modeling solutions From ferrant@tele.ucl.ac.be Thu Aug 2 10:46:11 2001 From: ferrant@tele.ucl.ac.be (Matthieu Ferrant) Date: Thu, 02 Aug 2001 11:46:11 +0200 Subject: [vtkusers] Wireframe representation References: <3B691861.103BC266@paris1.matra-dtv.fr> Message-ID: <3B692163.F4DD97CA@tele.ucl.ac.be> On the mapper use ScalarVisibilityOff and on the actor, [actor GetProperty] SetColor 0 0 0 #for black matt "Christophe ATTANASIO (cai)" wrote: > > Hello, > > I try to display a mesh in wireframe representation, but I would like to > have the same color for each edges... > I try to use vtkProperty but I cannot switch off the interpolation... > > Thanks for you help > Christophe > > -- > Christophe ATTANASIO > Open CASCADE > email : c-attanasio@opencascade.com > http://www.opencascade.com > Open CASCADE, the Open Source Standard for 3D modeling solutions > > _______________________________________________ > This is the private VTK discussion list. > Please keep messages on-topic. Check the FAQ at: > Follow this link to subscribe/unsubscribe: > http://public.kitware.com/mailman/listinfo/vtkusers -- M.Ferrant, Ph.D. UCL/TELE Room A-157 Place du Levant, 2 B-1348LLN - Belgium Tel. +32-10-478073 Fax. : +32-10-472089 http://www.tele.ucl.ac.be/MEMBERS/Ferrant_Matthieu_e.html From jerome.coloos@samcef.com Thu Aug 2 14:35:28 2001 From: jerome.coloos@samcef.com (Jerome Coloos) Date: Thu, 2 Aug 2001 15:35:28 +0200 Subject: [vtkusers] pb with Legend Box of vtkXYPlotActor on Alpha Message-ID: Hi all, I run this simple XY-Plot example on hpux, irix, linux, aix, sunOS but it doesn't run on my Alpha OSF1 V4.0. To run it, I need to put the LegendOff() only on Alpha. Could somebody try to run it on this architecture ? //////////////////////////////////////////////////////////////////////////// /// #include "vtkRenderWindow.h" #include "vtkRenderWindowInteractor.h" #include "vtkRenderer.h" #include "vtkXYPlotActor.h" #include "vtkRectilinearGrid.h" #include "vtkFloatArray.h" int main() { // Create the rendering stuff vtkRenderWindow *renWin = vtkRenderWindow::New(); vtkRenderWindowInteractor *iren = vtkRenderWindowInteractor::New(); iren->SetRenderWindow(renWin); vtkRenderer *ren = vtkRenderer::New(); renWin->AddRenderer(ren); ren->SetBackground(0.87,0.87,0.87); vtkFloatArray *xCoords = vtkFloatArray::New(); vtkFloatArray *yCoords = vtkFloatArray::New(); int dataSize = 100; float *array = new float[dataSize]; for (int i = 0; i < dataSize; i++) *(array + i ) = i; xCoords->SetArray(array, dataSize, 1); yCoords->SetArray(array, dataSize, 1); vtkXYPlotActor *xyplot = vtkXYPlotActor::New(); xyplot -> GetProperty()->SetColor(0,0,0); xyplot -> SetXValuesToValue(); xyplot -> LegendOn(); vtkRectilinearGrid *curve = vtkRectilinearGrid::New(); curve -> SetDimensions(dataSize,1,1); curve -> SetXCoordinates(xCoords); curve -> GetPointData()->SetScalars(yCoords); xyplot-> AddInput(curve); ren->AddActor2D(xyplot); renWin->Render(); // interact with data iren->Initialize(); iren->Start(); exit(1); } //////////////////////////////////////////////////////////////////////////// /// __________________________________________ ___ Jérôme COLOOS @/ \@ Tel : 32-4/361.69.69 \° °/ Fax : 32-4/361.69.80 ==\ /== mailto:jerome.coloos@samcef.com ° http://www.samcef.com SAMTECH s.a. Parc Scientifique du Sart-Tilman rue des Chasseurs-Ardennais, 8 B-4031 Angleur-LIEGE ___________________________________________ From sebastien@barre.nom.fr Thu Aug 2 15:06:35 2001 From: sebastien@barre.nom.fr (Sebastien BARRE) Date: Thu, 02 Aug 2001 16:06:35 +0200 Subject: [vtkusers] VTK T-Shirt Contest deadline extended In-Reply-To: <4.3.2.20010801230141.0285e340@pop.nycap.rr.com> References: <3B682FDA.6E02B68D@rainbow.es.dupont.com> <3B6828B4.DCFB15DC@rc.rug.nl> Message-ID: <5.1.0.14.2.20010802160336.01dd01e8@pop.fr.clara.net> At 01/08/2001 23:20, Lisa Sobierajski Avila wrote: >Millions will enter, only one will win. OK - some will consider entering, >hopefully a few actually will do it, and one person will win! :)) OK, I've got a (rather stupid) idea, but I need someone confortable with any 3D software like 3DStudio, Maya & co (the rendering capabilities of VTK won't be enough, and I have no time to go into Renderman export). The 3D model will be extremely simple. If the picture wins the contest, I'll give all prices to my co-worker (since I can't really compete anyway :) From steven.leblanc@mayahtt.com Thu Aug 2 16:12:19 2001 From: steven.leblanc@mayahtt.com (Steve Leblanc) Date: Thu, 2 Aug 2001 11:12:19 -0400 Subject: [vtkusers] Python 'Killed' running anything Message-ID: <20010802111219.A1933574@mayahtt.com> Hi I'm a long-time VTK user. I've just upgraded my Python installation (on SGI IRIX 6.5) to version 2.1.1 so I recompiled VTK 3.2. Mace.cxx and mace.tcl work fine but mace.py crashes python with the message 'Killed' and nothing else (no traceback or anything). I've also tried compiling the latest nightly version of VTK. Same problem. Here's the interesting part. If I replace all occurrences of XXX.SetInput( YYY.GetOutput() ) with a = YYY.GetOutput() XXX.SetInput( a ) then everything works! I've tried similar constructions in Python (without VTK) to see if my Python build was screwy, but it looks OK, and all python tests pass. It only happens with VTK. Any ideas? -- Steve Leblanc Maya Heat Transfer Technologies Ltd. From kola.babalola@stud.man.ac.uk Thu Aug 2 16:44:50 2001 From: kola.babalola@stud.man.ac.uk (Kola Babalola) Date: Thu, 2 Aug 2001 16:44:50 +0100 Subject: [vtkusers] Generating isosurface from segmented data Message-ID: <000001c11b6a$12dfe170$71ea5882@smb.man.ac.uk> I have segmented a 3D MRI Data set and I am trying to view the segmented contours as an isosurface. Following the examples in medical.cxx I can view a binary version of the segmented image. What I am actually trying to do is to load in the original image and in some way combine the segmented image with it so that when the interpolation during triangulation will be smoother. Does any one have any ideas? Is there some way to mask voxels? Thanks Kolawole Babalola Research Student Image Science & Bio-medical Engineering University of Manchester Stopford Building, Oxford Road Manchester, UK, M13 9PT Tel ++44 (0) 161 275 5570 Fax ++44 (0) 161 275 5145 Take your business to the world with www.sprynt.com From niebrueg@cis.ohio-state.edu Thu Aug 2 18:37:41 2001 From: niebrueg@cis.ohio-state.edu (Bill Niebruegge) Date: Thu, 02 Aug 2001 12:37:41 -0500 Subject: [vtkusers] Parallel VTK Message-ID: <3B698FE5.49320233@cis.ohio-state.edu> I have a few questions about using VTK in parallel. I'm running RedHat 7.0. 1) I'm having problems compiling some of the C++ examples getting errors like "vtkBranchExtentTranslator.h: No such file or directory". This header is in the contrib directory I believe. Is there something I'm missing here? 2) Does parallel vtk use MPI exclusively? If so is there a version of MPI that works best with it? Thanks Bill Niebruegge From berkgeveci@hotmail.com Thu Aug 2 18:40:37 2001 From: berkgeveci@hotmail.com (Berk Geveci) Date: Thu, 02 Aug 2001 13:40:37 -0400 Subject: [vtkusers] Parallel VTK Message-ID: >I have a few questions about using VTK in parallel. I'm running RedHat >7.0. > >1) I'm having problems compiling some of the C++ examples getting errors >like "vtkBranchExtentTranslator.h: No such file or directory". This >header is in the contrib directory I believe. Is there something I'm >missing here? Did you build vtk with contrib ? Which example is doing this ? >2) Does parallel vtk use MPI exclusively? If so is there a version of >MPI that works best with it? It should work with any mpi distribution. I prefer mpich. Berk _________________________________________________________________ Get your FREE download of MSN Explorer at http://explorer.msn.com/intl.asp From Adam Smyczek" Hello Everyone, I'm a new user of VTK and I program with Java. I have a question to get data from array classes, for example vtkFloatArray or vtkBitArray. One way is to get the data with the getValue(id) method. It's not very fast. Is it possible to do it faster like the getPointer methode from vtkCharArray class? Thanks Smitti From 97yadavm@utsc.utoronto.ca Thu Aug 2 19:40:13 2001 From: 97yadavm@utsc.utoronto.ca (Maneesh Yadav) Date: Thu, 2 Aug 2001 14:40:13 -0400 (EDT) Subject: [vtkusers] MRI Tiff stacks In-Reply-To: <4.3.2.20010801225842.02859660@pop.nycap.rr.com> Message-ID: Hi Lisa, I'm not sure if you can be of much help, but the 'tiff stack' is a single file (?). The data is from mouseatlas.caltech.edu, (you can click an embryo and get the tiff stack from the bottom of the page, here is an example: http://mouseatlas.caltech.edu/Stacks_and_movies/13.5dpc-Stacks_and_movies/13.5dpc_NIH_stacks/Stack,Cor1750_50,256*256_NoZF I've never heard of these stacks before, but apparently NIH Image can view them...if anyone can suggest as to how to get this data into VTK that'd be great...(it don't think it is quite as simple as a concatenated set of TIFF's but it shouldn't be much more complicated than that)... On Wed, 1 Aug 2001, Lisa Sobierajski Avila wrote: > Hello Maneesh, > > If you haven't tried it already, you might want to download VolView > (http://www.kitware.com/products/volview.html). If your tiff stack is a set > of 2D tiff images (is there such as thing as a 3D tiff image?) then you > should be able to read it in and visualize it. This will give you a quick > idea of what VTK is capable of doing with such data. > > Let me know if you have any questions. > > Lisa > > > At 05:58 PM 7/31/2001, you wrote: > >Hi all, > >Many moons ago I was trying to write some molecular viz stuff in vtk but > >it never turned out (not so much vtk's fault as it was sort of underlying > >molecular semantics that frusturated me) > > > >Anyhoo I'm back to vtk as I have some mouse embryo MRI data that I'd like > >to visualize and > >I've been given a tiff stack, which I really not sure how to process (is > >it just a concatenated set of tiff files?). I think Sebastien Barre's > >tutorial provides me with most of the other help I'll need. > > > >Any other advice from people who have done this sort of thing would be > >appreciated. > > > >Many Thanks, > >Maneesh Yadav > > > > > >_______________________________________________ > >This is the private VTK discussion list. > >Please keep messages on-topic. Check the FAQ at: > > > >Follow this link to subscribe/unsubscribe: > >http://public.kitware.com/mailman/listinfo/vtkusers > > From niebrueg@cis.ohio-state.edu Thu Aug 2 21:10:32 2001 From: niebrueg@cis.ohio-state.edu (Bill Niebruegge) Date: Thu, 02 Aug 2001 15:10:32 -0500 Subject: [vtkusers] Parallel VTK References: Message-ID: <3B69B3B8.781F23F1@cis.ohio-state.edu> I did build with contrib and the examples that are giving me problems are: FayShow MandelbrotVol NonBlockingMPI TestController TestMPI TreeComposite composite I get mostly undefined reference errors to MPI symbols, i.e. MPI_Group_incl, lam_mpi_char, etc. I have LAM mpi(?) on my system already. Any ideas? Thanks for your help Bill Niebruegge Berk Geveci wrote: > >I have a few questions about using VTK in parallel. I'm running RedHat > >7.0. > > > >1) I'm having problems compiling some of the C++ examples getting errors > >like "vtkBranchExtentTranslator.h: No such file or directory". This > >header is in the contrib directory I believe. Is there something I'm > >missing here? > > Did you build vtk with contrib ? Which example is doing this ? > > >2) Does parallel vtk use MPI exclusively? If so is there a version of > >MPI that works best with it? > > It should work with any mpi distribution. I prefer mpich. > > Berk > > _________________________________________________________________ > Get your FREE download of MSN Explorer at http://explorer.msn.com/intl.asp From julian@essaustin.com Thu Aug 2 22:24:04 2001 From: julian@essaustin.com (Julian Humphries) Date: Thu, 02 Aug 2001 14:24:04 -0700 Subject: [vtkusers] MRI Tiff stacks References: Message-ID: <3B69C4F4.78FE2941@mail.utexas.edu> Maneesh Yadav wrote: > > Hi Lisa, > I'm not sure if you can be of much help, but the 'tiff stack' is > a single file (?). The data is from mouseatlas.caltech.edu, (you can > click an embryo and get the tiff stack from the bottom of the page, here > is an example: > > http://mouseatlas.caltech.edu/Stacks_and_movies/13.5dpc-Stacks_and_movies/13.5dpc_NIH_stacks/Stack,Cor1750_50,256*256_NoZF > > I've never heard of these stacks before, but apparently NIH Image can view > them...if anyone can suggest as to how to get this data into VTK that'd be > great...(it don't think it is quite as simple as a concatenated set of > TIFF's but it shouldn't be much more complicated than that)... > Go to http://rsb.info.nih.gov/ij/ and download or run imagej. You can open the stack and export it out as separate tiff files. (Convert stack to images). You can also do any image processing you might need to do ahead of time before vtk. Julian Humphries From tswilkin@fas.harvard.edu Thu Aug 2 20:49:22 2001 From: tswilkin@fas.harvard.edu (TJ Wilkinson) Date: Thu, 2 Aug 2001 15:49:22 -0400 (EDT) Subject: [vtkusers] Fitting 2D image Message-ID: I'm using vtkImageReslice, vtkImageMapper, vttActor2D, vtkRenderer & vtkRenderWindow to display and interact with 2D images. I'd like to add an image fitting function, but I'd like to do it, if possible, without having to store extra information, that is, just use the information that is available in these data objects that I listed. When an image first is displayed, each pixel in the image file is mapped to a single pixel on the display. The only way I've found to fit an image is to store this original spacing, then use that value to find the new spacing that would correspond to a fit. If I don't want to fit the image immediately, though, I might change the original spacing via zooming. Basically, I was wondering how I can determine the correct spacing from the original extents, the size of the renderWindow, an origin, and a given spacing. Sincerely, TJ From 97yadavm@utsc.utoronto.ca Thu Aug 2 21:03:54 2001 From: 97yadavm@utsc.utoronto.ca (Maneesh Yadav) Date: Thu, 2 Aug 2001 16:03:54 -0400 (EDT) Subject: [vtkusers] MRI Tiff stacks In-Reply-To: <3B69C4F4.78FE2941@mail.utexas.edu> Message-ID: On Thu, 2 Aug 2001, Julian Humphries wrote: > > > Maneesh Yadav wrote: > > > > Hi Lisa, > > I'm not sure if you can be of much help, but the 'tiff stack' is > > a single file (?). The data is from mouseatlas.caltech.edu, (you can > > click an embryo and get the tiff stack from the bottom of the page, here > > is an example: > > > > http://mouseatlas.caltech.edu/Stacks_and_movies/13.5dpc-Stacks_and_movies/13.5dpc_NIH_stacks/Stack,Cor1750_50,256*256_NoZF > > > > I've never heard of these stacks before, but apparently NIH Image can view > > them...if anyone can suggest as to how to get this data into VTK that'd be > > great...(it don't think it is quite as simple as a concatenated set of > > TIFF's but it shouldn't be much more complicated than that)... > > > > Go to http://rsb.info.nih.gov/ij/ and download or run imagej. You can > open the stack and export it out as separate tiff files. (Convert stack to > images). You can also do any image processing you might need to do ahead of > time before vtk. Apparently ImageJ cannot handle compressed TIFF files...:(... > > Julian Humphries > From Scott.Harris@wpafb.af.mil Thu Aug 2 21:05:52 2001 From: Scott.Harris@wpafb.af.mil (Harris Scott R CIV AFRL/SNJM) Date: Thu, 2 Aug 2001 16:05:52 -0400 Subject: [vtkusers] MRI Tiff stacks Message-ID: <67348AAF0635D511866A00508BDF0CC82E4E8F@fszhtv11.wpafb.af.mil> NIH Image can read TIFF stacks and has a scripting language, so you can use it to read a stack and spit out individual TIFF files for each slice. I'm not sure if NIH Image can read compressed TIFFs. It's a great program, however. Scott Harris, Ph.D. AFRL/SNJM 3109 P Street Bldg 622 WPAFB OH 45433-7700 937/255-9614x285 (office) 937/255-6489 (fax) -----Original Message----- From: Maneesh Yadav [mailto:97yadavm@utsc.utoronto.ca] Sent: Thursday, August 02, 2001 2:40 PM To: Lisa Sobierajski Avila Cc: vtkusers@public.kitware.com Subject: Re: [vtkusers] MRI Tiff stacks Hi Lisa, I'm not sure if you can be of much help, but the 'tiff stack' is a single file (?). The data is from mouseatlas.caltech.edu, (you can click an embryo and get the tiff stack from the bottom of the page, here is an example: http://mouseatlas.caltech.edu/Stacks_and_movies/13.5dpc-Stacks_and_movies/13.5dpc_NIH_stacks/Stack,Cor1750_50,256*256_NoZF I've never heard of these stacks before, but apparently NIH Image can view them...if anyone can suggest as to how to get this data into VTK that'd be great...(it don't think it is quite as simple as a concatenated set of TIFF's but it shouldn't be much more complicated than that)... On Wed, 1 Aug 2001, Lisa Sobierajski Avila wrote: > Hello Maneesh, > > If you haven't tried it already, you might want to download VolView > (http://www.kitware.com/products/volview.html). If your tiff stack is a set > of 2D tiff images (is there such as thing as a 3D tiff image?) then you > should be able to read it in and visualize it. This will give you a quick > idea of what VTK is capable of doing with such data. > > Let me know if you have any questions. > > Lisa > > > At 05:58 PM 7/31/2001, you wrote: > >Hi all, > >Many moons ago I was trying to write some molecular viz stuff in vtk but > >it never turned out (not so much vtk's fault as it was sort of underlying > >molecular semantics that frusturated me) > > > >Anyhoo I'm back to vtk as I have some mouse embryo MRI data that I'd like > >to visualize and > >I've been given a tiff stack, which I really not sure how to process (is > >it just a concatenated set of tiff files?). I think Sebastien Barre's > >tutorial provides me with most of the other help I'll need. > > > >Any other advice from people who have done this sort of thing would be > >appreciated. > > > >Many Thanks, > >Maneesh Yadav > > > > > >_______________________________________________ > >This is the private VTK discussion list. > >Please keep messages on-topic. Check the FAQ at: > > > >Follow this link to subscribe/unsubscribe: > >http://public.kitware.com/mailman/listinfo/vtkusers > > _______________________________________________ This is the private VTK discussion list. Please keep messages on-topic. Check the FAQ at: Follow this link to subscribe/unsubscribe: http://public.kitware.com/mailman/listinfo/vtkusers From 97yadavm@utsc.utoronto.ca Thu Aug 2 21:11:18 2001 From: 97yadavm@utsc.utoronto.ca (Maneesh Yadav) Date: Thu, 2 Aug 2001 16:11:18 -0400 (EDT) Subject: [vtkusers] MRI TIFF Stacks, tiffsplit almost worked! Message-ID: Geeze I love unix, I fogot about libtiff utilities...Jim suggested the use of tiffinfo and I just guessed and found there was a tiffsplit, unfortunatley I get the following errors: xgq.tif: LZW compression no longer supported due to Unisys patent enforcement. It does split up the image but I get garbage.... Arrggh!!! From volpecr@crd.ge.com Thu Aug 2 21:23:39 2001 From: volpecr@crd.ge.com (Volpe, Christopher R (CRD)) Date: Thu, 2 Aug 2001 16:23:39 -0400 Subject: [vtkusers] VTK T-Shirt Contest deadline extended Message-ID: Ok, here's my entry. It's descriptive, rather than a finished image, because it's going to take a little work on your end. My suggestion consists of three photos. The first is Lorensen holding up his arms in a "V" configuration. (I can help with that. We've got a pic of him doing this up on the bulletin board among the other photos taken at a playground construction project a few years ago). Then get a picture of Will holding out his arms in a "T" configuration. (Ya know, I'll *bet* someone's got a picture of him doing this while officiating at Ken's wedding.) Then all that remains is to get Ken to stand with his right side facing the camera, his arms extended up at a 45 degree angle, and one leg extended down at a 45 degree angle. (Lisa, check with Michelle to see if she's got any pictures of him impersonating Chuck Berry with his bass guitar. Or maybe just paste a picture of his face on something like http://www2.cea.edu/robert/ChuBerry.jpeg. It kinda looks like a "K".) Voila. V-T-K. Chris ============================================ Christopher R. Volpe Computer Scientist Visualization and Computer Vision Program Electronic Systems Laboratory Bldg KW, Room C215 General Electric Corporate Research & Development P.O. Box 8, Schenectady, NY 12301 (518) 387-7766, Dial Comm: 8*833-7766, Fax: (518) 387-6981 e-mail: volpecr@crd.ge.com web: http://www.crd.ge.com/~volpecr |> -----Original Message----- |> From: Lisa Sobierajski Avila [mailto:lisa.avila@kitware.com] |> Sent: Wednesday, August 01, 2001 11:20 PM |> To: vtkusers@public.kitware.com |> Subject: [vtkusers] VTK T-Shirt Contest deadline extended |> |> |> |> Hello Everyone, |> |> By popular demand (well, actually because we'd like to have |> more than one |> entry to choose from...) we've decided to extend the VTK |> T-Shirt Design |> Contest. We are hoping that someone out there in the VTK |> community has more |> artistic talent than we do, and can come up with an |> eye-catching design |> that developers and users everywhere will be proud to wear. |> If your design |> is selected you will receive not only the immense |> satisfaction of knowing |> that you were selected as the most creative t-shirt designer |> in the entire |> VTK community but also not one, but two (yes, that is two!) |> free t-shirts! |> And, if you act quickly (definitely before August 27, 2001 |> when the contest |> ends) you can have the option of having those free t-shirts |> autographed by |> the entire Kitware staff! But wait - there's more! The lucky |> winner of the |> contest will receive two (I know it is hard to believe, but |> yes I did say |> two!) free VTK User's Guides! Keep one for yourself and send |> one to your |> Mom! But wait, there's more! Each of those beautifully bound |> VTK User's |> Guides comes with a VTK CD-ROM! You already have VTK? Well, |> don't worry - |> they make great coasters! |> |> Millions will enter, only one will win. OK - some will |> consider entering, |> hopefully a few actually will do it, and one person will win! |> |> Please send all submissions in electronic format to |> kitware@kitware.com |> with a subject of T-Shirt Contest. |> |> |> |> Thanks! |> |> Lisa |> |> |> |> _______________________________________________ |> This is the private VTK discussion list. |> Please keep messages on-topic. Check the FAQ at: Follow this link to subscribe/unsubscribe: http://public.kitware.com/mailman/listinfo/vtkusers From 97yadavm@utsc.utoronto.ca Thu Aug 2 21:38:17 2001 From: 97yadavm@utsc.utoronto.ca (Maneesh Yadav) Date: Thu, 2 Aug 2001 16:38:17 -0400 (EDT) Subject: [vtkusers] yay! got my TIFF files In-Reply-To: Message-ID: Sorry to be so verbose, you can use tiffsplit under RH6.1 to get it to work....I have heard that there are libtiff rpms out there for newer libtiff versions, contact me if you need help finding them. On Thu, 2 Aug 2001, Maneesh Yadav wrote: > Geeze I love unix, I fogot about libtiff utilities...Jim suggested the > use of tiffinfo and I just guessed and > found there was a tiffsplit, unfortunatley I get the following errors: > > xgq.tif: LZW compression no longer supported due to Unisys patent > enforcement. > > It does split up the image but I get garbage.... > > Arrggh!!! > > > > _______________________________________________ > This is the private VTK discussion list. > Please keep messages on-topic. Check the FAQ at: > Follow this link to subscribe/unsubscribe: > http://public.kitware.com/mailman/listinfo/vtkusers > From ziegler@merl.com Thu Aug 2 21:59:31 2001 From: ziegler@merl.com (Remo Ziegler) Date: Thu, 02 Aug 2001 16:59:31 -0400 Subject: [vtkusers] normals Message-ID: <3B69BF33.913EB295@merl.com> Hi, how can I be sure, that all normals are calculated the right way if I have vtkPolyData. I tried to do something, but some normals are not correct. How can I improve this? Here the code I used: vtkPolyDataNormals *normals = vtkPolyDataNormals::New(); normals->SetInput(polyData); normals->ComputeCellNormalsOn(); normals->SplittingOff(); normals->ConsistencyOn(); normals->Update(); polyData = normals->GetOutput(); maybe somebody has a good idea? Have a nice day! Greets .... Remo From lisa.avila@kitware.com Thu Aug 2 22:50:09 2001 From: lisa.avila@kitware.com (Lisa S. Avila) Date: Thu, 02 Aug 2001 17:50:09 -0400 Subject: [vtkusers] MRI Tiff stacks In-Reply-To: References: <3B69C4F4.78FE2941@mail.utexas.edu> Message-ID: <5.0.0.25.0.20010802174631.02ab2f00@pop.nycap.rr.com> --=====================_618395984==_ Content-Type: text/plain; charset="us-ascii"; format=flowed Hello Maneesh, I was able to open your file as a raw file in VolView (I had to rename it so that it wouldn't assume it was a tiff!). I think that is because it is a stack of uncompressed tiffs - it probably wouldn't work if it was compressed. If your data is uncompressed like this, you can simply use vtkImageReader with the right parameters. Cool data - I can see eyes, a spine, little webbed feet... I've attached an image. Lisa At 04:03 PM 8/2/2001, Maneesh Yadav wrote: >On Thu, 2 Aug 2001, Julian Humphries wrote: > > > > > > > Maneesh Yadav wrote: > > > > > > Hi Lisa, > > > I'm not sure if you can be of much help, but the 'tiff stack' is > > > a single file (?). The data is from mouseatlas.caltech.edu, (you can > > > click an embryo and get the tiff stack from the bottom of the page, here > > > is an example: > > > > > > > http://mouseatlas.caltech.edu/Stacks_and_movies/13.5dpc-Stacks_and_movies/13.5dpc_NIH_stacks/Stack,Cor1750_50,256*256_NoZF > > > > > > I've never heard of these stacks before, but apparently NIH Image can > view > > > them...if anyone can suggest as to how to get this data into VTK > that'd be > > > great...(it don't think it is quite as simple as a concatenated set of > > > TIFF's but it shouldn't be much more complicated than that)... > > > > > > > Go to http://rsb.info.nih.gov/ij/ and download or run imagej. You can > > open the stack and export it out as separate tiff files. (Convert stack to > > images). You can also do any image processing you might need to do > ahead of > > time before vtk. > >Apparently ImageJ cannot handle compressed TIFF files...:(... > > > > > Julian Humphries > > > > >_______________________________________________ >This is the private VTK discussion list. >Please keep messages on-topic. 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Message-ID: <3B69D7C4.DE9DECDA@purdue.edu> Hello, Everyone, About the VTK T-shirt design contest, how about if Kitware post all the entries on the web and let VTK users vote for the most favorite T-shirt design??? Kindest Regards, KJ From robbel@science.uva.nl Fri Aug 3 08:58:04 2001 From: robbel@science.uva.nl (Robert Belleman) Date: Fri, 3 Aug 2001 09:58:04 +0200 Subject: [vtkusers] MRI Tiff stacks In-Reply-To: <5.0.0.25.0.20010802174631.02ab2f00@pop.nycap.rr.com>; from lisa.avila@kitware.com on Thu, Aug 02, 2001 at 05:50:09PM -0400 References: <3B69C4F4.78FE2941@mail.utexas.edu> <5.0.0.25.0.20010802174631.02ab2f00@pop.nycap.rr.com> Message-ID: <20010803095804.A22611@carol.wins.uva.nl> On Thu, Aug 02, 2001 at 05:50:09PM -0400, Lisa S. Avila wrote: > Hello Maneesh, > > I was able to open your file as a raw file in VolView (I had to rename it > so that it wouldn't assume it was a tiff!). I think that is because it is a > stack of uncompressed tiffs - it probably wouldn't work if it was > compressed. If your data is uncompressed like this, you can simply use > vtkImageReader with the right parameters. Since some of you were using unix systems, I've had good results by stripping the header from this dataset using dd if=Stack_Cor1750_50_256_256_NoZF of=dataset.raw bs=20190 skip=1 The output file "dataset.raw" is a 256 x 256 x 250, 1 byte per pixel file (16384000 bytes in total). Really nice data... thanks for the URL! Best, -- Rob [] Robert Belleman X Section Computational Science [] [] robbel@science.uva.nl |X| University of Amsterdam, the Netherlands [] [] tel: (+31) 20 525 7510 X http://www.science.uva.nl/~robbel/ [] From jerome.coloos@samcef.com Fri Aug 3 10:03:45 2001 From: jerome.coloos@samcef.com (Jerome Coloos) Date: Fri, 3 Aug 2001 11:03:45 +0200 Subject: [vtkusers] division by 0 in vtkLegendBoxActor Message-ID: Hi all, In vtkLegendBoxActor, I think there's a division by zero when the symbol is the default (an horizontal line). For this symbol : bounds[2]=bounds[3]=0 and at line 559 of vtkLegendBoxActor.cxx : size[1]/(bounds[3]-bounds[2]) is undefined . This causes a core with some compilers (on Alpha especially). __________________________________________ ___ Jérôme COLOOS @/ \@ Tel : 32-4/361.69.69 \° °/ Fax : 32-4/361.69.80 ==\ /== mailto:jerome.coloos@samcef.com ° http://www.samcef.com SAMTECH s.a. Parc Scientifique du Sart-Tilman rue des Chasseurs-Ardennais, 8 B-4031 Angleur-LIEGE ___________________________________________ From rene.hommel@addcom.de Fri Aug 3 10:59:35 2001 From: rene.hommel@addcom.de (Rene Hommel) Date: Fri, 03 Aug 2001 11:59:35 +0200 Subject: [vtkusers] Problems on SuSE7.0 and VTK3.2 Message-ID: <3B6A7607.6398CDEF@addcom.de> finished compilation of VTK3.2 on SuSE7.0: use --with-opengl instead of --with-mesa ! Didn't try --with-tcl. When problem occurs: TclError: couldn't load file "vtkTkRenderWidget": vtkTkRenderWidget: cannot open shared object file: No such file or directory set: export VTK_TK_WIDGET_PATH=/usr/local/lib/vtk/python thank all for the help! Rene Hommel From Matthieu.Chabanas@imag.fr Fri Aug 3 15:35:04 2001 From: Matthieu.Chabanas@imag.fr (Matthieu Chabanas) Date: Fri, 03 Aug 2001 16:35:04 +0200 Subject: [vtkusers] Import VRML file with texture Message-ID: <3B6AB698.94E46F6D@imag.fr> From Matthieu.Chabanas@imag.fr Fri Aug 3 15:38:38 2001 From: Matthieu.Chabanas@imag.fr (Matthieu Chabanas) Date: Fri, 03 Aug 2001 16:38:38 +0200 Subject: [vtkusers] Import VRML file with texture Message-ID: <3B6AB76E.3F3F74FD@imag.fr> I've seen in a mail posted by Tom Citriniti (28 jun 2000) that vtkVRMLImporter does not support textures or per-face coloring. Does anyone has worked on this recently so that it is now supported? Or do you know a way to convert a VRML file with textutes to a vtk readable format? Thanks, Matt From tswilkin@fas.harvard.edu Fri Aug 3 16:42:37 2001 From: tswilkin@fas.harvard.edu (TJ Wilkinson) Date: Fri, 3 Aug 2001 11:42:37 -0400 (EDT) Subject: [vtkusers] vtkImageShrink3D and SetShift() Message-ID: Could someone tell me how I can use SetShift() to get around the image shift caused by subsampling an image with vtkImageShrink3D? Thanks. TJ From dbisig@ifi.unizh.ch Fri Aug 3 16:58:22 2001 From: dbisig@ifi.unizh.ch (Daniel Bisig) Date: 3 Aug 2001 17:58:22 +0200 Subject: [vtkusers] missing vtkImageClippingExtents.cxx Message-ID: <20010803175822.1.14895.qmail@ifi.unizh.ch> Hi all, I'm trying to install vtk on Mac OS X release 10.0.4. I pulled the most recent release of vtk by using cvs. I strictly followed the procedure as described in the macintosh/Readme.txt. When running make compilation fails with the following error message: make[1]: *** No rule to make target `vtkImageClippingExtents.cxx', needed by `vtkImageClippingExtents.o'. Stop. make: *** [build_imaging] Error 2 How am I supposed to solve this problem? Do I really need vtkImageClippingExtents.o or can I simply remove it from the Makefile? Thanks in advance for any help! regards Daniel From fladak@rri.on.ca Fri Aug 3 17:12:38 2001 From: fladak@rri.on.ca (fladak@rri.on.ca) Date: Fri, 3 Aug 2001 16:12:38 GMT Subject: [vtkusers] Problems with vtkProbeFilter Message-ID: <200108031612.MAA25738@netmgr.rri.on.ca> This is a multi-part message in MIME format. --MailMan_Boundary Content-Type: text/plain I am experiencing problems with vtkProbeFilter. When I load large files, the program crashes when I use vtkProbeFilter to get the gray scale value at the mouse position. The program crashes as a result of interpolating the gray scale value at a particular point (see the attachment for error message). Is there any other way of interpolating the gray scale value at a particular point without using vtkProbeFilter? The program can handle a file of approx. 300MB on a machine with 1GB of RAM. Also the program can handle a file of approx. 200MB on a machine with 750MB of RAM. 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I did it exactly the way you have tried, with the exception that I didn't define ComputeCellNormalsOn Sebastian > Hi, > how can I be sure, that all normals are calculated the right way if > I have vtkPolyData. I tried to do something, but some normals are not > correct. How can I improve this? Here the code I used: > > vtkPolyDataNormals *normals = vtkPolyDataNormals::New(); > normals->SetInput(polyData); > normals->ComputeCellNormalsOn(); > normals->SplittingOff(); > normals->ConsistencyOn(); > normals->Update(); > polyData = normals->GetOutput(); > > maybe somebody has a good idea? > > Have a nice day! > Greets .... Remo > > > _______________________________________________ > This is the private VTK discussion list. > Please keep messages on-topic. Check the FAQ at: > Follow this link to > subscribe/unsubscribe: > http://public.kitware.com/mailman/listinfo/vtkusers From ystarrev@uwo.ca Sat Aug 4 04:34:39 2001 From: ystarrev@uwo.ca (Yves Starreveld) Date: Fri, 3 Aug 2001 23:34:39 -0400 Subject: Fwd: [vtkusers] missing vtkImageClippingExtents.cxx Message-ID: <20010804034216.MUSN11790.femail1.sdc1.sfba.home.com@localhost> > From: Yves Starreveld > Date: Fri Aug 03, 2001 11:33:05 PM America/Montreal > To: "Daniel Bisig" > Subject: Re: [vtkusers] missing vtkImageClippingExtents.cxx > > Hi, Daniel, > > I updated the imaging makefile in the cvs repository to reflect the > latest state of vtk. > > grab it, install it in the imaging directory, and all should work. > > Please let me know if you have any further difficulties. > > Yves > On Friday, August 3, 2001, at 11:58 AM, Daniel Bisig wrote: > >> Hi all, >> >> I'm trying to install vtk on Mac OS X release 10.0.4. I pulled the >> most recent release of vtk by using cvs. I strictly followed the >> procedure as described in the macintosh/Readme.txt. When running make >> compilation fails with the following error message: >> >> make[1]: *** No rule to make target `vtkImageClippingExtents.cxx', >> needed by `vtkImageClippingExtents.o'. Stop. >> make: *** [build_imaging] Error 2 >> >> How am I supposed to solve this problem? Do I really need >> vtkImageClippingExtents.o or can I simply remove it from the Makefile? >> >> Thanks in advance for any help! >> >> regards >> >> Daniel >> >> _______________________________________________ >> This is the private VTK discussion list. Please keep messages >> on-topic. Check the FAQ at: >> Follow this link to subscribe/unsubscribe: >> http://public.kitware.com/mailman/listinfo/vtkusers >> > From justin@truelife.com.au Mon Aug 6 03:10:57 2001 From: justin@truelife.com.au (Justin Wright) Date: Mon, 6 Aug 2001 11:40:57 +0930 Subject: [vtkusers] expection when exiting program Message-ID: Hello, I have a simple c++ program based on the MFC doc/view based sample proivided with the vtk toolkit. With this program and another that I have written, the I get an exception error when I close the program IF I have some data in the pipeline, ie from a stlreader. If I exit the program without loading any data, there are no exceptions thrown. If I comment out the line that deletes the renderer when closing, I can exit the program without an exception. Has anyone else experienced this problem? I am reasonably sure that I am deleting all of my vtk objects before it gets to the exception point. Thanks, Justin Wright Web Dev Manager TRUE LIFE CREATIONS ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Advanced Visualisation : 3D Animation+Website Design+Graphic Design Studio 1 Greater Union Centre, 128 Hindley Street, Adelaide SA 5000 Phone: +61 8 8221 5884 Fax: +61 8 8221 6766 Email: create@truelife.com.au WWW: http://www.truelife.com.au you can stop reading now. From paul.welton@sympatico.ca Mon Aug 6 05:10:59 2001 From: paul.welton@sympatico.ca (Paul Welton) Date: Mon, 06 Aug 2001 00:10:59 -0400 Subject: [vtkusers] 3D/4D Drawing - Should I interface to Vtk? Message-ID: <3B6E18D3.D917A083@sympatico.ca> This posting is to announce the availability of an interactive tool for 3D/4D drawing named the "TSIPP Workbench". The tool is an [Incr Tcl] program, and the underlying toolkit is SIPP, the SImple Polygon Processor interfaced to Tcl via TSIPP, an interface developed by Mark Diekhans. So what has this to do with Vtk? Well one future direction for the tool would be to exploit graphics hardware through OpenGL/Mesa, and Vtk appears to be the ideal route to doing this. The objective of my posting is to solicit advice and opinions on whether this development is useful, and if so, to encourage collaboration. The software itself (it is covered by GPL) can be downloaded from: http://www.neosoft.com/tcl/ftparchive/sorted/graphics/TSIPPwb/1.4 http://www.neosoft.com/tcl/ftparchive/sorted/graphics/TSIPPwb/1.4s You will find HTML documentation, and all binaries necessary to run on Linux. The "supplementary" download contains extra examples which could not be contained in the main file due to size limitations on this repository. A presentation on the TSIPP Workbench was made at the O'Reilly Open Source Convention in San Diago on 26th July. You can download the presentation slides (Star Office 5.2) and the paper itself (PDF) from: ftp://ftp.oreilly.com/pub/conference/os2001/welton_072601.sdd ftp://ftp.oreilly.com/pub/conference/os2001/tcl_papers/welton_tcl2001_J.pdf The slides were produced with the TSIPP Workbench and post-processed with the GIMP. The motivation for creating this tool is that while there are many packages for rendering and processing 3D images, support for creating 3D drawings and animating them interactively is limited. The tool also aims to create new Tk widgets through drawing which appear as 3D scenes and represent information, for example the state of an industrial process; hence the projects sub-title, "Working Widgets Without Code". Paul Welton From charlie.chang@nchc.gov.tw Mon Aug 6 10:50:37 2001 From: charlie.chang@nchc.gov.tw (Charlie H. Chang) Date: Mon, 6 Aug 2001 17:50:37 +0800 Subject: [vtkusers] Problem to compile VTK nightly on RH 7.1 Message-ID: <002501c11e5d$3f3e64d0$9f3c6e8c@pavo095> This is a multi-part message in MIME format. ------=_NextPart_000_0026_01C11EA0.4D61A4D0 Content-Type: text/plain; charset="big5" Content-Transfer-Encoding: base64 SGkgYWxsLA0KSSBhbSBjb21waWxpbmcgdGhlIFZUSyBuaWdodGx5IG9uIG15IEludGVsIGJveCBy dW5uaW5nIFJlZEhhdCA3LjEgd2l0aCBnY2MgMi45Ni4NCkFuZCB0aGUgY29tcGlsZXIgY29tcGxh aW5lZCBhYm91dCB1c2luZyAiLWMiIGFuZCAiLW8iIGF0IHRoZSBzYW1lIHRpbWUuIA0KSG93ZXZl ciwgdGhpcyBkaWRuJ3QgaGFwcGVuIHdoZW4gSSBjb21waWxlZCB0aGUgVlRLIG9uIE1hbmRyYWtl IDguMC4NCkhhcyBhbnlvbmUgZWxzZSBlbmNvdW50ZXJlZCB0aGlzIHNhbWUgcHJvYmxlbT8NCkFu eSBpZGVhIHdoYXQgd2VudCB3cm9uZyBoZXJlPw0KDQpUaGFuayB5b3UgaW4gYWR2YW5jZSENCg0K Q2hhcmxpZSBILiBDaGFuZyANCmNoYXJsaWUuY2hhbmdAbmNoYy5nb3YudHcNCk5hdGlvbmFsIENl bnRlciBmb3IgSGlnaC1wZXJmb3JtYW5jZSBDb21wdXRpbmcNClRlbDogKzg4Ni0zLTU3NzYwODUg eDM2Mg0KRmF4OiArODg2LTMtMzUzOA0KDQoNCg== ------=_NextPart_000_0026_01C11EA0.4D61A4D0 Content-Type: text/html; charset="big5" Content-Transfer-Encoding: base64 PCFET0NUWVBFIEhUTUwgUFVCTElDICItLy9XM0MvL0RURCBIVE1MIDQuMCBUcmFuc2l0aW9uYWwv L0VOIj4NCjxIVE1MPjxIRUFEPg0KPE1FVEEgSFRUUC1FUVVJVj0iQ29udGVudC1UeXBlIiBDT05U RU5UPSJ0ZXh0L2h0bWw7IGNoYXJzZXQ9YmlnNSI+DQoNCg0KPE1FVEEgY29udGVudD0iTVNIVE1M IDUuNTAuNDUyMi4xODAwIiBuYW1lPUdFTkVSQVRPUj48L0hFQUQ+DQo8Qk9EWT4NCjxESVY+PFNQ QU4gY2xhc3M9NTY2MDI0NjA5LTA2MDgyMDAxPjxGT05UIGZhY2U9QXJpYWw+SGkgYWxsLDwvRk9O VD48L1NQQU4+PC9ESVY+DQo8RElWPjxTUEFOIGNsYXNzPTU2NjAyNDYwOS0wNjA4MjAwMT48Rk9O VCBmYWNlPUFyaWFsPkkgYW0gY29tcGlsaW5nIHRoZSBWVEsgDQpuaWdodGx5IG9uIG15IEludGVs IGJveCBydW5uaW5nIFJlZEhhdCA3LjEgd2l0aCBnY2MgMi45Ni48L0ZPTlQ+PC9TUEFOPjwvRElW Pg0KPERJVj48U1BBTiBjbGFzcz01NjYwMjQ2MDktMDYwODIwMDE+PEZPTlQgZmFjZT1BcmlhbD5B bmQgdGhlIGNvbXBpbGVyIGNvbXBsYWluZWQgDQphYm91dCB1c2luZyAiLWMiIGFuZCAiLW8iIGF0 IHRoZSBzYW1lIHRpbWUuIDwvRk9OVD48L1NQQU4+PC9ESVY+DQo8RElWPjxTUEFOIGNsYXNzPTU2 NjAyNDYwOS0wNjA4MjAwMT48Rk9OVCBmYWNlPUFyaWFsPkhvd2V2ZXIsIHRoaXMgZGlkbid0IGhh cHBlbiANCndoZW4gSSBjb21waWxlZCB0aGUgVlRLIG9uIE1hbmRyYWtlIDguMC48L0ZPTlQ+PC9T UEFOPjwvRElWPg0KPERJVj48U1BBTiBjbGFzcz01NjYwMjQ2MDktMDYwODIwMDE+PEZPTlQgZmFj ZT1BcmlhbD5IYXMgYW55b25lIGVsc2UgZW5jb3VudGVyZWQgDQp0aGlzIHNhbWUgcHJvYmxlbT88 L0ZPTlQ+PC9TUEFOPjwvRElWPg0KPERJVj48U1BBTiBjbGFzcz01NjYwMjQ2MDktMDYwODIwMDE+ PEZPTlQgZmFjZT1BcmlhbD5BbnkgaWRlYSB3aGF0IHdlbnQgd3JvbmcgDQpoZXJlPzwvRk9OVD48 L1NQQU4+PC9ESVY+DQo8RElWPjxTUEFOIGNsYXNzPTU2NjAyNDYwOS0wNjA4MjAwMT48Rk9OVCBm YWNlPUFyaWFsPjwvRk9OVD48L1NQQU4+Jm5ic3A7PC9ESVY+DQo8RElWPjxTUEFOIGNsYXNzPTU2 NjAyNDYwOS0wNjA4MjAwMT48Rk9OVCBmYWNlPUFyaWFsPlRoYW5rIHlvdSBpbiANCmFkdmFuY2Uh PC9GT05UPjwvU1BBTj48L0RJVj4NCjxESVY+PEZPTlQgZmFjZT1BcmlhbD48L0ZPTlQ+Jm5ic3A7 PC9ESVY+DQo8RElWPjxGT05UIGZhY2U9QXJpYWw+PFNUUk9ORz48Rk9OVCBjb2xvcj0jMDAwMGEw PkNoYXJsaWUgSC4gDQpDaGFuZzwvRk9OVD48L1NUUk9ORz4gPC9GT05UPjwvRElWPg0KPERJVj48 QSBocmVmPSJtYWlsdG86Y2hhcmxpZWNoYW5nQG5jaGMuZ292LnR3Ij48Rk9OVCBmYWNlPUFyaWFs IGNvbG9yPSMwMDgwYzAgDQpzaXplPTI+PFNUUk9ORz5jaGFybGllLmNoYW5nQG5jaGMuZ292LnR3 PC9TVFJPTkc+PC9GT05UPjwvQT48L0RJVj4NCjxESVY+PEZPTlQgc2l6ZT0yPjxGT05UIGZhY2U9 QXJpYWw+PEZPTlQgc2l6ZT0zPk48L0ZPTlQ+YXRpb25hbCA8Rk9OVCANCnNpemU9Mz5DPC9GT05U PmVudGVyIGZvciA8Rk9OVCBzaXplPTM+SDwvRk9OVD5pZ2gtcGVyZm9ybWFuY2UgPEZPTlQgDQpz aXplPTM+QzwvRk9OVD5vbXB1dGluZzwvRk9OVD48L0ZPTlQ+PC9ESVY+DQo8RElWPjxGT05UIGZh Y2U9QXJpYWwgc2l6ZT0yPlRlbDogKzg4Ni0zLTU3NzYwODUgeDM2MjwvRk9OVD48L0RJVj4NCjxE SVY+PEZPTlQgZmFjZT1BcmlhbCBzaXplPTI+RmF4OiArODg2LTMtMzUzODwvRk9OVD48L0RJVj4N CjxESVY+PEZPTlQgZmFjZT1BcmlhbCBzaXplPTI+PC9GT05UPiZuYnNwOzwvRElWPg0KPERJVj48 Rk9OVCBmYWNlPUFyaWFsPjwvRk9OVD4mbmJzcDs8L0RJVj48L0JPRFk+PC9IVE1MPg0K ------=_NextPart_000_0026_01C11EA0.4D61A4D0-- From faulhaber@ipf.uni-karlsruhe.de Mon Aug 6 15:48:26 2001 From: faulhaber@ipf.uni-karlsruhe.de (Karin Faulhaber) Date: Mon, 06 Aug 2001 16:48:26 +0200 Subject: [vtkusers] More examples for vtkProgrammableGlyphFilter? Message-ID: <3B6EAE3A.1056388@ipf.uni-karlsruhe.de> Hello, does anyone have an example using a vtkProgrammableGlyphFilter with a source which doesn't have a method like SetCenter? For example vtkSphereSource has this method, but vtkConeSource hasn't, so I have to translate everything by hand. And I _don't_ want to use vtkGlyph3D. Thanks a lot, Karin -- Karin Faulhaber Universitaet Karlsruhe Institut fuer Photogrammetrie und Fernerkundung (IPF) Englerstr. 7 76128 Karlsruhe Tel: 0721/608-3676 E-Mail: faulhaber@ipf.uni-karlsruhe.de From joyku@Stanford.EDU Tue Aug 7 05:53:38 2001 From: joyku@Stanford.EDU (Joy P. Ku) Date: Mon, 6 Aug 2001 21:53:38 -0700 (PDT) Subject: [vtkusers] Unexpected scalar/vector value of zero when using vtkProbeFilter Message-ID: I am using the vtkProbeFilter to map a mesh that is in the z=0 plane onto a pre-defined set of points in the z=0 plane. While this seems to do the trick for most of the points, I occasionally get a value of 0 for the scalar at a point where I wouldn't expect a zero. More specifically, a 3D plot of the magnitudes of the mesh should give a paraboloid. The output of the vtkProbeFilter produces the paraboloid but with an occasional point having a magnitude of zero. These points seem to occur randomly, both near the peak of the paraboloid and near the edges. Are there limitations to the vtkProbeFilter that might produce this phenomenon? If so, how could I get around it? Thanks, Joy Ku joyku@stanford.edu From PG00127775@ntu.edu.sg Tue Aug 7 10:07:44 2001 From: PG00127775@ntu.edu.sg (#LU JI#) Date: Tue, 7 Aug 2001 17:07:44 +0800 Subject: [vtkusers] Evaluating 2D K Splines Message-ID: Hi there, The Kochanek Spline implemeted in vtk only provides the Evaluate() for 1D Spline,hwo to evaluate 2D Splines? regards, lvji From PG00127775@ntu.edu.sg Tue Aug 7 10:12:55 2001 From: PG00127775@ntu.edu.sg (#LU JI#) Date: Tue, 7 Aug 2001 17:12:55 +0800 Subject: [vtkusers] (no subject) Message-ID: Hi there, The Kochanek Spline implemeted in vtk only provides the Evaluate() for 1D Spline,hwo to evaluate 2D Splines? regards, lvji From faulhaber@ipf.uni-karlsruhe.de Tue Aug 7 13:10:44 2001 From: faulhaber@ipf.uni-karlsruhe.de (Karin Faulhaber) Date: Tue, 07 Aug 2001 14:10:44 +0200 Subject: [vtkusers] Using vtkProgrammableGlyphFilter Message-ID: <3B6FDAC4.1827C091@ipf.uni-karlsruhe.de> Hello, if I use a vtkProgrammableGlyphFilter, how do I copy the Source objects to the right positions, that is the input points? If I have a cone as source object, I don't have something like "SetCenter(x,y,z)". I tried to use the code used in Glyph3D, but all I get is one single cone somewhere far away from all my input points ... Any help is appreciated!! Thanks Karin -- Karin Faulhaber Universitaet Karlsruhe Institut fuer Photogrammetrie und Fernerkundung (IPF) Englerstr. 7 76128 Karlsruhe Tel: 0721/608-3676 E-Mail: faulhaber@ipf.uni-karlsruhe.de From P.Kiran@geind.ge.com Tue Aug 7 13:15:27 2001 From: P.Kiran@geind.ge.com (Kiran, P (CORP, GEITC)) Date: Tue, 7 Aug 2001 17:45:27 +0530 Subject: [vtkusers] How to get the boundary points for a PolyData (Unstructured) Message-ID: <2025E70FDF44D511918D00508B650D94017EC334@ban03xbindge.geind.ge.com> Hi all, Is there any available mathods in vtk to get boundary points for a 3-D Polydata (unstructured). I tried the following pipeline, but no luck. vtkFeatureEdges -> vtkPolyDataMapper -> vtkActor ->vtkRenderer whether vtkFeatureEdges requires some kind of surface generated from PolyData, as it's input? Thanks in advance for help. -Kiran From krueger@techinfo.rwth-aachen.de Tue Aug 7 13:24:07 2001 From: krueger@techinfo.rwth-aachen.de (Thomas Krueger) Date: Tue, 07 Aug 2001 14:24:07 +0200 Subject: [vtkusers] vtkDataWriter and Java Message-ID: <3B6FDDE7.28789B5E@techinfo.rwth-aachen.de> Hi, I used the vtkPolyDataWriter (and the vtkDataWriter) with Java for storing object information in a byte array. This worked fine with the vtk 3.2. Since I now use the vtkNightly, I have the problem, that the GetBinaryOutputString() method has disappeared. public byte[] writeVTKDataToByte() { vtkPanel libLoader = new vtkPanel(); vtkPolyDataWriter theWriter = new vtkPolyDataWriter(); theWriter.SetInput(data); // data is a vtkPolyData theWriter.SetFileTypeToBinary(); theWriter.WriteToOutputStringOn(); theWriter.Write(); // this has to be replaced, but how?? return theWriter.GetBinaryOutputString(); } // works with vtk 3.2 but fails with vtk Nightly The use of Strings: public String writeVTKDataToString() { ... theWriter.SetFileTypeToASCII(); ... return theWriter.GetOutputString(); } is not possible since the vtkDataWriter reports an error: ERROR: In vtkDataWriter.cxx, line 915 vtkPolyDataWriter (0x??????????): OutputString was not long enough. Who can help me with these problems? Thanks, Tom From jeff@cdnorthamerica.com Tue Aug 7 13:32:40 2001 From: jeff@cdnorthamerica.com (J.A. Lee) Date: Tue, 07 Aug 2001 08:32:40 -0400 Subject: [vtkusers] How to get the boundary points for a PolyData (Unstructured) References: <2025E70FDF44D511918D00508B650D94017EC334@ban03xbindge.geind.ge.com> Message-ID: <3B6FDFE8.1D86FAF1@cdnorthamerica.com> --------------FB35F6FD143043AB271C60A2 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit How about vtkGeometryFilter? -Jeff "Kiran, P (CORP, GEITC)" wrote: > Hi all, > > Is there any available mathods in vtk to get boundary points for a 3-D > Polydata (unstructured). > I tried the following pipeline, but no luck. > vtkFeatureEdges -> vtkPolyDataMapper -> vtkActor ->vtkRenderer > > whether vtkFeatureEdges requires some kind of surface generated from > PolyData, as it's input? > > Thanks in advance for help. > -Kiran > > _______________________________________________ > This is the private VTK discussion list. > Please keep messages on-topic. Check the FAQ at: > Follow this link to subscribe/unsubscribe: > http://public.kitware.com/mailman/listinfo/vtkusers --------------FB35F6FD143043AB271C60A2 Content-Type: text/html; charset=us-ascii Content-Transfer-Encoding: 7bit How about vtkGeometryFilter?
-Jeff

"Kiran, P (CORP, GEITC)" wrote:

Hi all,

Is there any available mathods in vtk to get  boundary points for a 3-D
Polydata (unstructured).
I tried the following pipeline, but no luck.
vtkFeatureEdges -> vtkPolyDataMapper -> vtkActor ->vtkRenderer

whether vtkFeatureEdges requires some kind of surface generated from
PolyData,  as it's input?

Thanks in advance for help.
-Kiran

_______________________________________________
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://public.kitware.com/mailman/listinfo/vtkusers


 

--------------FB35F6FD143043AB271C60A2--



From ben.held@staarinc.com  Tue Aug  7 13:40:16 2001
From: ben.held@staarinc.com (Ben Held)
Date: Tue, 7 Aug 2001 07:40:16 -0500
Subject: [vtkusers] Displaying complex data
Message-ID: 

Hello,

I am interested in displaying complex vectors (each of the 3 components is a
complex number) in VTK and allowing the user options of displaying phase,
magnitude, etc.  Does anyone have any experience with this?  Any thoughts?

Ben

Ben L. Held
Simulation Technology & Applied Research, Inc.
11520 N. Port Washington Rd.
Suite 101B
Mequon, WI  53092
Phone: (262) 240-0291 x101
FAX: (262) 240-0294
e-mail: ben.held@staarinc.com
web: http://www.staarinc.com




From Yogish.Mallya@geind.ge.com  Tue Aug  7 13:48:54 2001
From: Yogish.Mallya@geind.ge.com (Mallya, Yogish (CORP, GEITC))
Date: Tue, 7 Aug 2001 18:18:54 +0530
Subject: [vtkusers] Display Size.
Message-ID: <2025E70FDF44D511918D00508B650D94017EC551@ban03xbindge.geind.ge.com>

How to reduce the display size for an image using vtkImageviewer( without
cropping the image ). e.g converting 512 * 512 to a Icon, say 64*64


Thanks in advance
Yogish Mallya




From 97yadavm@utsc.utoronto.ca  Tue Aug  7 20:54:32 2001
From: 97yadavm@utsc.utoronto.ca (Maneesh Yadav)
Date: Tue, 7 Aug 2001 15:54:32 -0400 (EDT)
Subject: [vtkusers] stupid question re: volSimple.py
In-Reply-To: <20010803095804.A22611@carol.wins.uva.nl>
Message-ID: 

Hi all, I'm having a bit o' trouble visualizing my data...
I stripped the header of the stack as was suggested earlier on the list
and I should be left with the raw data (it's the right size)...
to load the data I do this:

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

from libVTKCommonPython import *
from libVTKGraphicsPython import *


reader=vtkImageReader()
reader.SetFileName("dataset.raw")
reader.SetDataExtent(0,255,0,255,0,249)
reader.SetFileDimensionality(3)
reader.SetHeaderSize(0)
reader.SetDataByteOrderToLittleEndian()
reader.SetDataOrigin(0,0,0)
reader.SetDataScalarTypeToUnsignedChar()
reader.SetDataSpacing(1.0,1.0,1.0)
reader.GetOutput().ReleaseDataFlagOn()

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

(am I missing anything?)
Things seem to read fine....

I then copy the last part volSimple.py


-----------------------------------------------------------
opacityTransferFunction = vtkPiecewiseFunction()
opacityTransferFunction.AddPoint(20,0.0)
opacityTransferFunction.AddPoint(255,0.2)

colorTransferFunction = vtkColorTransferFunction()
colorTransferFunction.AddRedPoint(0.0,0.0)
colorTransferFunction.AddRedPoint(64.0,1.0)
colorTransferFunction.AddRedPoint(128.0,0.0)
colorTransferFunction.AddRedPoint(255.0,0.0)
colorTransferFunction.AddBluePoint(0.0,0.0)
colorTransferFunction.AddBluePoint(64.0,0.0)
colorTransferFunction.AddBluePoint(128.0,1.0)
colorTransferFunction.AddBluePoint(192.0,0.0)
colorTransferFunction.AddBluePoint(255.0,0.0)
colorTransferFunction.AddGreenPoint(0.0,0.0)
colorTransferFunction.AddGreenPoint(128.0,0.0)
colorTransferFunction.AddGreenPoint(192.0,1.0)
colorTransferFunction.AddGreenPoint(255.0,0.2)

volumeProperty = vtkVolumeProperty()
volumeProperty.SetColor(colorTransferFunction)
volumeProperty.SetScalarOpacity(opacityTransferFunction)

compositeFunction = vtkVolumeRayCastCompositeFunction()

volumeMapper = vtkVolumeRayCastMapper()
volumeMapper.SetInput(reader.GetOutput())
volumeMapper.SetVolumeRayCastFunction(compositeFunction)

volume = vtkVolume()
volume.SetMapper(volumeMapper)
volume.SetProperty(volumeProperty)


# Okay now the graphics stuff
ren = vtkRenderer()
renWin = vtkRenderWindow()
renWin.AddRenderer(ren)
renWin.SetSize(256,256)
iren = vtkRenderWindowInteractor()
iren.SetRenderWindow(renWin)

#ren1 AddActor outlineActor
ren.AddVolume(volume)
ren.SetBackground(0.1,0.2,0.4)
renWin.Render()

def TkCheckAbort():
        foo=renWin.GetEventPending()
        if foo != 0:
                renWin.SetAbortRender(1)

renWin.SetAbortCheckMethod(TkCheckAbort)

iren.Initialize()
-----------------------------------------------------

The program starts a window comes then dissappears (no coredump)...

I just kind of want to 'get started' so I am not particularly concerened
with the coloring right now, but I wouldn't think that would prevent the
program  from running....can anyone help me as to what am I doing wrong?





From lsi@nchc.gov.tw  Wed Aug  8 10:22:20 2001
From: lsi@nchc.gov.tw (Lin Sun-In)
Date: Wed, 08 Aug 2001 17:22:20 +0800
Subject: [vtkusers] About OffScreen Question ^_^
Message-ID: <200108080900.f7890t508165@zone.nchc.gov.tw>

Dear VTK author:

	I have a problem about VTK. We know OpenGL fo Win32 has support
offscreen function , and VTK for Win32 also provide similar functions.
But now I want to try this feature in Unix-like platform, but i have no
idea. Could you please tell me any solution about this.

PS : Because I want to run VTK program in the background, but the
RenderWindow need a X-Window Server to display the result. So I must
login to take a window manager or set the "DISPLAY" environment variable
to transfer the display to another machine. But I want to have the same
function in Win32 OS ==> "offscreen". Could you please tell me how can i
do it ????


				Kevin


From robbel@science.uva.nl  Wed Aug  8 14:13:10 2001
From: robbel@science.uva.nl (Robert Belleman)
Date: Wed, 8 Aug 2001 15:13:10 +0200
Subject: [vtkusers] stupid question re: volSimple.py
In-Reply-To: ; from 97yadavm@utsc.utoronto.ca on Tue, Aug 07, 2001 at 03:54:32PM -0400
References: <20010803095804.A22611@carol.wins.uva.nl> 
Message-ID: <20010808151310.A12066@waal.wins.uva.nl>

Maneesh,

On Tue, Aug 07, 2001 at 03:54:32PM -0400, Maneesh Yadav wrote:
> Hi all, I'm having a bit o' trouble visualizing my data...
> I stripped the header of the stack as was suggested earlier on the list
> and I should be left with the raw data (it's the right size)...
> to load the data I do this:

I have converted your script to Tcl to verify your code.

> reader=vtkImageReader()
> reader.SetFileName("dataset.raw")
> reader.SetDataExtent(0,255,0,255,0,249)
> reader.SetFileDimensionality(3)
> reader.SetHeaderSize(0)
> reader.SetDataByteOrderToLittleEndian()
> reader.SetDataOrigin(0,0,0)
> reader.SetDataScalarTypeToUnsignedChar()
> reader.SetDataSpacing(1.0,1.0,1.0)
> reader.GetOutput().ReleaseDataFlagOn()

This is fine. Note that "reader.SetDataByteOrderToLittleEndian" isn't
really needed since the data is 1 byte per pixel (byte order is important
of the data consists of more than one byte per voxel). The values you set
for HeaderSize, DataOrigin and DataSpacing are the same by default, I
think, but it can't harm to set them explicitly.

> opacityTransferFunction = vtkPiecewiseFunction()
> opacityTransferFunction.AddPoint(20,0.0)
> opacityTransferFunction.AddPoint(255,0.2)

You may want to change this a little. This will result in opaque voxels
for values between 0 and 20 which will obscure the "interesting" bits.

Try

opacityTransferFunction.AddPoint(0, 0.8)
opacityTransferFunction.AddPoint(255, 0.0)

> colorTransferFunction = vtkColorTransferFunction()
> colorTransferFunction.AddRedPoint(0.0,0.0)
> colorTransferFunction.AddRedPoint(64.0,1.0)
> colorTransferFunction.AddRedPoint(128.0,0.0)
> colorTransferFunction.AddRedPoint(255.0,0.0)
[... etc.]

You are probably using an old version of Vtk; my version warns me that
Add(Red|Green|Blue)Point is deprecated and I should use AddRGBPoint
instead.

Try

colorTransferFunction.AddRGBPoint(0,   0.0, 0.0, 0.0)
colorTransferFunction.AddRGBPoint(64,  1.0, 0.0, 0.0)
colorTransferFunction.AddRGBPoint(128, 0.0, 1.0, 0.0)
colorTransferFunction.AddRGBPoint(192, 0.0, 0.0, 1.0)
colorTransferFunction.AddRGBPoint(255, 0.0, 0.0, 0.2)

> The program starts a window comes then dissappears (no coredump)...

Ah... Maybe you should try a newer version of Vtk, because everything
else looks fine to me.

Good luck,
-- Rob

-- 
[] Robert Belleman         X  Section Computational Science            []
[] robbel@science.uva.nl  |X| University of Amsterdam, the Netherlands []
[] tel: (+31) 20 525 7510  X  http://www.science.uva.nl/~robbel/       []


From 97yadavm@utsc.utoronto.ca  Wed Aug  8 15:52:03 2001
From: 97yadavm@utsc.utoronto.ca (Maneesh Yadav)
Date: Wed, 8 Aug 2001 10:52:03 -0400 (EDT)
Subject: [vtkusers] stupid question re: volSimple.py
In-Reply-To: <20010808151310.A12066@waal.wins.uva.nl>
Message-ID: 

Thanks for the help Robert, I am running vtk3.2, but now I realize I
think am  just plain running out of memory (I'm running this on a machine
with 128M ram)...but I think I do see an image briefly :)

On Wed, 8 Aug 2001, Robert Belleman wrote:

> Maneesh,
>
> On Tue, Aug 07, 2001 at 03:54:32PM -0400, Maneesh Yadav wrote:
> > Hi all, I'm having a bit o' trouble visualizing my data...
> > I stripped the header of the stack as was suggested earlier on the list
> > and I should be left with the raw data (it's the right size)...
> > to load the data I do this:
>
> I have converted your script to Tcl to verify your code.
>
> > reader=vtkImageReader()
> > reader.SetFileName("dataset.raw")
> > reader.SetDataExtent(0,255,0,255,0,249)
> > reader.SetFileDimensionality(3)
> > reader.SetHeaderSize(0)
> > reader.SetDataByteOrderToLittleEndian()
> > reader.SetDataOrigin(0,0,0)
> > reader.SetDataScalarTypeToUnsignedChar()
> > reader.SetDataSpacing(1.0,1.0,1.0)
> > reader.GetOutput().ReleaseDataFlagOn()
>
> This is fine. Note that "reader.SetDataByteOrderToLittleEndian" isn't
> really needed since the data is 1 byte per pixel (byte order is important
> of the data consists of more than one byte per voxel). The values you set
> for HeaderSize, DataOrigin and DataSpacing are the same by default, I
> think, but it can't harm to set them explicitly.
>
> > opacityTransferFunction = vtkPiecewiseFunction()
> > opacityTransferFunction.AddPoint(20,0.0)
> > opacityTransferFunction.AddPoint(255,0.2)
>
> You may want to change this a little. This will result in opaque voxels
> for values between 0 and 20 which will obscure the "interesting" bits.
>
> Try
>
> opacityTransferFunction.AddPoint(0, 0.8)
> opacityTransferFunction.AddPoint(255, 0.0)
>
> > colorTransferFunction = vtkColorTransferFunction()
> > colorTransferFunction.AddRedPoint(0.0,0.0)
> > colorTransferFunction.AddRedPoint(64.0,1.0)
> > colorTransferFunction.AddRedPoint(128.0,0.0)
> > colorTransferFunction.AddRedPoint(255.0,0.0)
> [... etc.]
>
> You are probably using an old version of Vtk; my version warns me that
> Add(Red|Green|Blue)Point is deprecated and I should use AddRGBPoint
> instead.
>
> Try
>
> colorTransferFunction.AddRGBPoint(0,   0.0, 0.0, 0.0)
> colorTransferFunction.AddRGBPoint(64,  1.0, 0.0, 0.0)
> colorTransferFunction.AddRGBPoint(128, 0.0, 1.0, 0.0)
> colorTransferFunction.AddRGBPoint(192, 0.0, 0.0, 1.0)
> colorTransferFunction.AddRGBPoint(255, 0.0, 0.0, 0.2)
>
> > The program starts a window comes then dissappears (no coredump)...
>
> Ah... Maybe you should try a newer version of Vtk, because everything
> else looks fine to me.
>
> Good luck,
> -- Rob
>
> --
> [] Robert Belleman         X  Section Computational Science            []
> [] robbel@science.uva.nl  |X| University of Amsterdam, the Netherlands []
> [] tel: (+31) 20 525 7510  X  http://www.science.uva.nl/~robbel/       []
>
> _______________________________________________
> This is the private VTK discussion list.
> Please keep messages on-topic. Check the FAQ at: 
> Follow this link to subscribe/unsubscribe:
> http://public.kitware.com/mailman/listinfo/vtkusers
>



From kamucha@hfm.e-technik.uni-kassel.de  Wed Aug  8 15:59:23 2001
From: kamucha@hfm.e-technik.uni-kassel.de (George Kamucha)
Date: Wed, 08 Aug 2001 16:59:23 +0200
Subject: [vtkusers] vtkQGL, editing source code required?
References: <200107121600.MAA24781@public.kitware.com>
Message-ID: <3B7153CB.34817F49@hfm.e-technik.uni-kassel.de>

Hi all,
I am installing vtkQGL (version vtkQGL_vtk31) using vtk 3.1 and Qt 2.1.0 but
when it reaches to the compilation of vtkQGLInteractorWidget.cpp, I get the
following error:

vtkQGLInteractorWidget.cpp: in method 'void
vtkQGLInteractorWidget::PickActor(int, int)':
vtkQGLInteractorWidget.cpp:529: type 'vtkActor' is not a base type for type
'vtkAssembly'
vtkQGLInteractorWidget.cpp:533: no matching function for call to
'vtkQGLInteractorWidget::actorPicked(vtk Assembly *, vtkPicker *&)'
vtkQGLInteractorWidget.h:125: candidates are:
vtkQGLInteractorWidget::actorPicked(vtkActor *, vtkPicker *)
make[1]: *** [vtkQGLInteractorWidget.o] Error 1
make[1]: Leaving directory 'home/kamucha/vtkQGL31/src'


I am left wondering, do I have to change the source code
vtkQGLInteractorWidget.cpp or is there something that I am missing somewhere?
Please, anybody with an idea on this give me the necessary tip, it will be
highly appreciated, thanks
George




From dalleyg@dma.org  Wed Aug  8 16:00:24 2001
From: dalleyg@dma.org (Gerald Dalley)
Date: Wed, 8 Aug 2001 11:00:24 -0400
Subject: [vtkusers] vtkMath::Jacobi question
Message-ID: 

I am using vtkMath::Jacobi to do some eigen analysis for me.  Whenever I
call that method, I get an "Error extracting eigenfunctions" error message.
I've looked in the source and the message is generated by a conditional
whose comment says "//// this is NEVER called".

Without digging into the source to understand the intricacies of the
algorithm, it looks like this condition will "often" happen rather than
"never": the outer loop preceeding the conditional terminates when
i=VTK_MAX_ROTATIONS and the conditional check is for i>=VTK_MAX_ROTATIONS,
so unless the loop exits early through one of its break statements, that
test will fail.

Is this error message a real one, and if so, what does it really mean?

--Gerald Dalley
  dalleyg@dma.org



From millerjv@crd.ge.com  Thu Aug  9 13:36:27 2001
From: millerjv@crd.ge.com (Miller, James V (CRD))
Date: Thu, 9 Aug 2001 08:36:27 -0400
Subject: [vtkusers] vtkMath::Jacobi question
Message-ID: 

Are you giving vtkMath::Jacobi a symmetric matrix?  The Jacobi algorithm only works on a symmetric
matrix.  If you are using Jacobi to do a general eigen analysis, that could explain why you are
seeing this message.

We have been looking at adding more general eigen analysis capabilities into vtk.  The trick is
finding an eigensystem implementation that is self contained so that it can be easily included and
maintained.



-----Original Message-----
From: Gerald Dalley [mailto:dalleyg@dma.org]
Sent: Wednesday, August 08, 2001 11:00 AM
To: VTK Users
Subject: [vtkusers] vtkMath::Jacobi question


I am using vtkMath::Jacobi to do some eigen analysis for me.  Whenever I
call that method, I get an "Error extracting eigenfunctions" error message.
I've looked in the source and the message is generated by a conditional
whose comment says "//// this is NEVER called".

Without digging into the source to understand the intricacies of the
algorithm, it looks like this condition will "often" happen rather than
"never": the outer loop preceeding the conditional terminates when
i=VTK_MAX_ROTATIONS and the conditional check is for i>=VTK_MAX_ROTATIONS,
so unless the loop exits early through one of its break statements, that
test will fail.

Is this error message a real one, and if so, what does it really mean?

--Gerald Dalley
  dalleyg@dma.org


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


From kamucha@hfm.e-technik.uni-kassel.de  Thu Aug  9 13:55:22 2001
From: kamucha@hfm.e-technik.uni-kassel.de (George Kamucha)
Date: Thu, 09 Aug 2001 14:55:22 +0200
Subject: [vtkusers] vtkQGL, editing source code required?
References: <200107121600.MAA24781@public.kitware.com> <3B7153CB.34817F49@hfm.e-technik.uni-kassel.de> <3B726D5B.3229CA04@student.mu-luebeck.de>
Message-ID: <3B72883A.2758367E@hfm.e-technik.uni-kassel.de>

Hi Fabian,
Thanks a lot for your response. My INCLUDE paths are okay since I am not getting errors to do with
missing include files. As you suggest, the problem seems to be with the vtk version that I am
using. It is a  vtk nightly version 3.1, release 606N running under Redhat Linux 6.2. My Qt, 2.1.0,
has not presented any problems so far in this application. I will therefore install vtk 3.1.2 and
see what happens. I really appreciate your suggestion, bis bald
viele Gruesse
George

Fabian Eilers wrote:

> Hello!
>
> I've compiled vtkQGL (version vtk31) under Solaris Unix, IRIX 6.4 and Linux (mesa 2.4)
> sucessfully.There are no problems. I use vtk 3.1.2 and qt 2.3.0 !!
> My idea: check all INCLUDE-Pathes in the Makefile, and change them to your own
> interests. Which system do you use (and which version?).
>
> Where are the VTK Headers (do you use vtk 3.2.0 or vtk 3.1.2), doesn't work with vtk 3.2.0,
> therefore you must change the source files --> use vtk 3.1.2.
>
> If you want to, I take a look at the files tomorrow. I use them to write my own application and
> therefore I must change them to my own interests.
>
> Greetings
> Fabian
>
> ----------------------------------------
> Fabian Eilers
> An der Mauer 39/41
> 23552 Lübeck
> eilers@informatik.mu-luebeck.de
> -----------------------------------------
>
> George Kamucha schrieb:
>
> > Hi all,
> > I am installing vtkQGL (version vtkQGL_vtk31) using vtk 3.1 and Qt 2.1.0 but
> > when it reaches to the compilation of vtkQGLInteractorWidget.cpp, I get the
> > following error:
> >
> > vtkQGLInteractorWidget.cpp: in method 'void
> > vtkQGLInteractorWidget::PickActor(int, int)':
> > vtkQGLInteractorWidget.cpp:529: type 'vtkActor' is not a base type for type
> > 'vtkAssembly'
> > vtkQGLInteractorWidget.cpp:533: no matching function for call to
> > 'vtkQGLInteractorWidget::actorPicked(vtk Assembly *, vtkPicker *&)'
> > vtkQGLInteractorWidget.h:125: candidates are:
> > vtkQGLInteractorWidget::actorPicked(vtkActor *, vtkPicker *)
> > make[1]: *** [vtkQGLInteractorWidget.o] Error 1
> > make[1]: Leaving directory 'home/kamucha/vtkQGL31/src'
> >
> > I am left wondering, do I have to change the source code
> > vtkQGLInteractorWidget.cpp or is there something that I am missing somewhere?
> > Please, anybody with an idea on this give me the necessary tip, it will be
> > highly appreciated, thanks
> > George
> >
> > _______________________________________________
> > This is the private VTK discussion list.
> > Please keep messages on-topic. Check the FAQ at: 
> > Follow this link to subscribe/unsubscribe:
> > http://public.kitware.com/mailman/listinfo/vtkusers





From busds@bu.edu  Thu Aug  9 15:30:13 2001
From: busds@bu.edu (shaun selha)
Date: Thu, 9 Aug 2001 10:30:13 -0400 (EDT)
Subject: [vtkusers] spline across actors
Message-ID: 

Hi Everyone,

   Quick Question for all vtk users.  I am creating a program in tcl using
vtk for the graphics.  Does anybody have an idea as to how I would be able
to say draw a spline along the surface of an actor and then be able to
populate points along the spline between its endpoints.  Thanks for any
help you can give.

Shaun  




From dgobbi@irus.rri.ca  Thu Aug  9 16:46:05 2001
From: dgobbi@irus.rri.ca (David Gobbi)
Date: Thu, 9 Aug 2001 11:46:05 -0400 (EDT)
Subject: [vtkusers] vtkMath::Jacobi question
In-Reply-To: 
Message-ID: 

My recommendation is that VTK4 should link to lapack, the same way
that VTK4-pre already links to zlib and libpng.  There is a
simplified version of lapack called 'lapack lite' that would be
suitable for inclusion in the VTK4 source tree.  This is what the
python Numeric package uses.

The matrix routines in vtkMath could just add a pretty interface to
the lapack routines.

 - David

--
  David Gobbi, MSc                       dgobbi@irus.rri.ca
  Advanced Imaging Research Group
  Robarts Research Institute, University of Western Ontario

On Thu, 9 Aug 2001, Miller, James V (CRD) wrote:

> Are you giving vtkMath::Jacobi a symmetric matrix?  The Jacobi algorithm only works on a symmetric
> matrix.  If you are using Jacobi to do a general eigen analysis, that could explain why you are
> seeing this message.
>
> We have been looking at adding more general eigen analysis capabilities into vtk.  The trick is
> finding an eigensystem implementation that is self contained so that it can be easily included and
> maintained.
>
>
>
> -----Original Message-----
> From: Gerald Dalley [mailto:dalleyg@dma.org]
> Sent: Wednesday, August 08, 2001 11:00 AM
> To: VTK Users
> Subject: [vtkusers] vtkMath::Jacobi question
>
>
> I am using vtkMath::Jacobi to do some eigen analysis for me.  Whenever I
> call that method, I get an "Error extracting eigenfunctions" error message.
> I've looked in the source and the message is generated by a conditional
> whose comment says "//// this is NEVER called".
>
> Without digging into the source to understand the intricacies of the
> algorithm, it looks like this condition will "often" happen rather than
> "never": the outer loop preceeding the conditional terminates when
> i=VTK_MAX_ROTATIONS and the conditional check is for i>=VTK_MAX_ROTATIONS,
> so unless the loop exits early through one of its break statements, that
> test will fail.
>
> Is this error message a real one, and if so, what does it really mean?
>
> --Gerald Dalley
>   dalleyg@dma.org
>
>
> _______________________________________________
> This is the private VTK discussion list.
> Please keep messages on-topic. Check the FAQ at: 
> Follow this link to subscribe/unsubscribe:
> http://public.kitware.com/mailman/listinfo/vtkusers
>
> _______________________________________________
> This is the private VTK discussion list.
> Please keep messages on-topic. Check the FAQ at: 
> Follow this link to subscribe/unsubscribe:
> http://public.kitware.com/mailman/listinfo/vtkusers
>



From kuebler@ira.uka.de  Thu Aug  9 17:01:33 2001
From: kuebler@ira.uka.de (Carsten =?iso-8859-1?Q?K=FCbler?=)
Date: Thu, 09 Aug 2001 18:01:33 +0200
Subject: [vtkusers] Running into problems with M$ dlls, VTK and objectfactories!!!
Message-ID: <3B72B3DD.F84BC9E@ira.uka.de>

This is a multi-part message in MIME format.
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Hej,

I made a object factory to combine vtk and qt. Now we got a problem
under NT4.0.
My object factory replaces vtkRenderWindow, vtkRenderWindowInteractor,
etc....
and VTK (3.2) is build as one vtkdll.dll (no changes)

The problem:
We create a vtkRenderWindow and add vtkCubeSource.
If we try to pick the cube (pressing 'p') we got a memory heap error.
The same programm on an SGI works fine and the same programm under NT
without my objectfactory
works fine, too.

The reason is, we can't execute renderer->GetZ(150, 400); under NT.

Here is the code from vtkRenderer:

     float vtkRenderer::GetZ (int x, int y)
     {
       float *zPtr;
       float z;

       zPtr = this->RenderWindow->GetZbufferData (x, y, x, y);
       if (zPtr)
         {
         z = *zPtr;
         delete [] zPtr;
         }
       else
         {
         z = 1.0;
         }
       return z;
     }

and the corresponding method of my QGLWindow (its a one to one copy from
vtkopenglrenderwindow resp. vtkwin32renderwindow):

     float *vtkQGLRenderWindow::GetZbufferData( int x1, int y1, int
     x2, int y2  )
     {
       int             y_low, y_hi;
       int             x_low, x_hi;
       int             width, height;
       float           *z_data = NULL;

       // set the current window
       this->MakeCurrent();

       if (y1 < y2)
         {
         y_low = y1;
         y_hi  = y2;
         }
       else
         {
         y_low = y2;
         y_hi  = y1;
         }

       if (x1 < x2)
         {
         x_low = x1;
         x_hi  = x2;
         }
       else
         {
         x_low = x2;
         x_hi  = x1;
         }

       width =  abs(x2 - x1)+1;
       height = abs(y2 - y1)+1;

       z_data = new float[width*height];

       // Turn of texturing in case it is on - some drivers have a
     problem
       // getting / setting pixels with texturing enabled.
       glDisable( GL_TEXTURE_2D );

       glPixelStorei( GL_PACK_ALIGNMENT, 1 );
       glReadPixels( x_low, y_low,
       width, height,
       GL_DEPTH_COMPONENT, GL_FLOAT,
       z_data );

       return z_data;
     }

Why can't we execute "renderer->GetZ (150, 400);"?

The renderwindow was created in the application and the renderer is
created in the vtkdll.dll.
The renderwindow allocates memory "z_data = new float[width*height]" but
the renderer
isn't allowed to free the memory "delete [] zPtr;". My solution was that
I add a method NewMemory
in the vtkObjectFactory which allocates memory on the heap of the dll
and recompile vtkdll.dll.

     char *vtkObjectFactory::NewMemory(int size)
     {
       return new char[size];
     }

I had to remove all memory allocations by:

     #ifdef _WIN32
       z_data =
     (float*)vtkObjectFactory::NewMemory(sizeof(float)*width*height);

     #else
       z_data = new float[width*height];
     #endif

Now all works fine, but I had to create my own VTKdll.dll...


My questions:

   * Is there a way to allocate memory which can be freed from an other
     dll?
   * Is there a similar problem with shared libraries on SGIs?
   * Is there a solution without changing code from vtk3.2?

Carsten

--------------720806402F5467DFD448CAFB
Content-Type: text/html; charset=us-ascii
Content-Transfer-Encoding: 7bit



Hej,

I made a object factory to combine vtk and qt. Now we got a problem
under NT4.0.

My object factory replaces vtkRenderWindow, vtkRenderWindowInteractor,
etc....

and VTK (3.2) is build as one vtkdll.dll (no changes)

The problem:

We create a vtkRenderWindow and add vtkCubeSource.

If we try to pick the cube (pressing 'p') we got a memory heap error.

The same programm on an SGI works fine and the same programm under
NT without my objectfactory

works fine, too.

The reason is, we can't execute renderer->GetZ(150, 400); under
NT.

Here is the code from vtkRenderer:

float vtkRenderer::GetZ (int x, int y)

{

  float *zPtr;

  float z;

  zPtr = this->RenderWindow->GetZbufferData (x, y, x, y);

  if (zPtr)

    {

    z = *zPtr;

    delete [] zPtr;

    }

  else

    {

    z = 1.0;

    }

  return z;

}

and the corresponding method of my QGLWindow (its a one to one copy from
vtkopenglrenderwindow resp. vtkwin32renderwindow):

float *vtkQGLRenderWindow::GetZbufferData( int x1, int
y1, int x2, int y2  )

{

  int            
y_low, y_hi;

  int            
x_low, x_hi;

  int            
width, height;

  float          
*z_data = NULL;

  // set the current window

  this->MakeCurrent();

  if (y1 < y2)

    {

    y_low = y1;

    y_hi  = y2;

    }

  else

    {

    y_low = y2;

    y_hi  = y1;

    }

  if (x1 < x2)

    {

    x_low = x1;

    x_hi  = x2;

    }

  else

    {

    x_low = x2;

    x_hi  = x1;

    }

  width =  abs(x2 - x1)+1;

  height = abs(y2 - y1)+1;

  z_data = new float[width*height];

  // Turn of texturing in case it is on - some drivers have
a problem

  // getting / setting pixels with texturing enabled.

  glDisable( GL_TEXTURE_2D );

  glPixelStorei( GL_PACK_ALIGNMENT, 1 );

  glReadPixels( x_low, y_low,

  width, height,

  GL_DEPTH_COMPONENT, GL_FLOAT,

  z_data );

  return z_data;

}

Why can't we execute "renderer->GetZ (150, 400);"?

The renderwindow was created in the application and the renderer is
created in the vtkdll.dll.

The renderwindow allocates memory "z_data = new float[width*height]"
but the renderer

isn't allowed to free the memory "delete [] zPtr;". My solution
was that I add a method NewMemory

in the vtkObjectFactory which allocates memory on the heap of the dll
and recompile vtkdll.dll.

char *vtkObjectFactory::NewMemory(int size)

{

  return new char[size];

}

I had to remove all memory allocations by:

#ifdef _WIN32

  z_data = (float*)vtkObjectFactory::NewMemory(sizeof(float)*width*height);

#else

  z_data = new float[width*height];

#endif

Now all works fine, but I had to create my own VTKdll.dll...

 

My questions:

    

  • 
Is there a way to allocate memory which can be freed from an other dll?
    • 


  • 
Is there a similar problem with shared libraries on SGIs?
    • 


  • 
Is there a solution without changing code from vtk3.2?
    • 





Carsten

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From dhomiak@xcaliber.com  Thu Aug  9 16:06:43 2001
From: dhomiak@xcaliber.com (David Homiak)
Date: Thu, 9 Aug 2001 10:06:43 -0500
Subject: [vtkusers] About OffScreen Question ^_^
Message-ID: <1BDB01B13696D411BD6200D0B7C854EAEA0A5F@chi-prd-mail1.xcaliber.com>

Kevin,
	See http://infinite-entropy.lbl.gov/VTK/vtkOffScreen/ for a
vtkOpenGLOffscreenRenderWindow class. From there description:
	"Use in place of a vtkRenderWindow to draw an offscreen image. This
is specifically for Unix/OpenGL/X11 systems. There is already a
vtkWin32OffscreenRenderWindow in the contrib directory of VTK to cover
Windows systems. For SGI systems, it will use pbuffers for hardware
accelerated offscreen rendering. For all other architectures, it will use
GLX pixmaps which tend to be software-rendering (except for
hardware-accelerated Mesa)."
	More generally for X11 on UNIX, there is also Xvfb, the X virtual
frame buffer. Do a Google search on it and also check out
http://starbase.neosoft.com/~claird/comp.windows.x/Xvfb.html. I have used
Xvfb in the past to do X processing on headless Sun servers lacking graphics
cards.

Dave Homiak
dhomiak@xcaliber.com
Results! Why, man, I have gotten a lot of results. I know several thousand
things that won't work.    --   Thomas Edison

> Date: Wed, 08 Aug 2001 17:22:20 +0800
> From: Lin Sun-In 
> To: vtkusers@public.kitware.com
> Subject: [vtkusers] About OffScreen Question ^_^
> 
> Dear VTK author:
> 
> 	I have a problem about VTK. We know OpenGL fo Win32 has support
> offscreen function , and VTK for Win32 also provide similar functions.
> But now I want to try this feature in Unix-like platform, but i have no
> idea. Could you please tell me any solution about this.
> 
> PS : Because I want to run VTK program in the background, but the
> RenderWindow need a X-Window Server to display the result. So I must
> login to take a window manager or set the "DISPLAY" environment variable
> to transfer the display to another machine. But I want to have the same
> function in Win32 OS ==> "offscreen". Could you please tell me how can i
> do it ????
> 
> 				Kevin



From lyon@cs.queensu.ca  Thu Aug  9 15:49:03 2001
From: lyon@cs.queensu.ca (Jennifer Lyon)
Date: Thu, 9 Aug 2001 10:49:03 -0400
Subject: [vtkusers] 3d grids?
Message-ID: <013101c120e2$6ed030c0$dc020f82@index>

Hello everyone,

I'm looking for a Grid background for a renderer that I can implement
without having it as a separate object.  The Grid should give a sense of
perspective projection from the viewpoint.

Any ideas?!
thank you!




From malcolm@geovision.co.za  Thu Aug  9 14:10:26 2001
From: malcolm@geovision.co.za (Malcolm Drummond)
Date: Thu, 9 Aug 2001 15:10:26 +0200
Subject: [vtkusers] Using vtkProgrammableGlyphFilter
References: <3B6FDAC4.1827C091@ipf.uni-karlsruhe.de>
Message-ID: <000d01c120d4$c99930a0$cefefea9@bart>

Hi Karin

Insert a transform-filter (ie. vtkTransformPolyDataFilter) between your
Source and vtkProgrammableGlyphFilter (so you're using the transform-filters
output as programmable-glyph-filter's source).

Source -> TransformPolyDataFilter -> GlyphMethod

 In the GlyphMethod you manipulate the transform connected to the
transform-filter.

Malcolm

----- Original Message -----
From: Karin Faulhaber 
To: VTK users list 
Sent: Tuesday, August 07, 2001 2:10 PM
Subject: [vtkusers] Using vtkProgrammableGlyphFilter


> Hello,
>
> if I use a vtkProgrammableGlyphFilter, how do I copy the Source objects
> to the right positions, that is the input points?
> If I have a cone as source object, I don't have something like
> "SetCenter(x,y,z)".
> I tried to use the code used in Glyph3D,  but all I get is one single
> cone somewhere far away from all my input points ...
>
> Any help is appreciated!!
> Thanks
> Karin
>
>
>
> --
> Karin Faulhaber
> Universitaet Karlsruhe
> Institut fuer Photogrammetrie und Fernerkundung (IPF)
> Englerstr. 7
> 76128 Karlsruhe
>
> Tel: 0721/608-3676
> E-Mail: faulhaber@ipf.uni-karlsruhe.de
>
> _______________________________________________
> This is the private VTK discussion list.
> Please keep messages on-topic. Check the FAQ at:

> Follow this link to subscribe/unsubscribe:
> http://public.kitware.com/mailman/listinfo/vtkusers
>



From lavoie@mcs.anl.gov  Thu Aug  9 18:51:52 2001
From: lavoie@mcs.anl.gov (Tony Lavoie)
Date: Thu, 9 Aug 2001 12:51:52 -0500 (CDT)
Subject: [vtkusers] About OffScreen Question ^_^
In-Reply-To: <1BDB01B13696D411BD6200D0B7C854EAEA0A5F@chi-prd-mail1.xcaliber.com>
Message-ID: 

I went looking int off-screen rendering as well, and I tried the
vtkOffScreen code. First, on Linux (Unix/OpenGL/X11 systems as it says),
it links against the Mesa libs, which has offscreen rendering if you
glance through vtkMesaRenderWindow.cxx. I looked into OpenGL support of
offscreen rendering, and found that the blue book (OpenGL Reference
Manual, OpenGL ARB) says that pbuffers and pixmaps are only implemented in
GLX 1.3, and 1.3 afaik is only available for SGI's- 1.3 for Linux & Mac is
"Coming Soon..."

-Tony . o O ( c'mon nVidia, GLX 1.3 on GeForce3's!! )


On Thu, 9 Aug 2001, David Homiak wrote:

> Kevin,
> 	See http://infinite-entropy.lbl.gov/VTK/vtkOffScreen/ for a
> vtkOpenGLOffscreenRenderWindow class. From there description:
> 	"Use in place of a vtkRenderWindow to draw an offscreen image. This
> is specifically for Unix/OpenGL/X11 systems. There is already a
> vtkWin32OffscreenRenderWindow in the contrib directory of VTK to cover
> Windows systems. For SGI systems, it will use pbuffers for hardware
> accelerated offscreen rendering. For all other architectures, it will use
> GLX pixmaps which tend to be software-rendering (except for
> hardware-accelerated Mesa)."
> 	More generally for X11 on UNIX, there is also Xvfb, the X virtual
> frame buffer. Do a Google search on it and also check out
> http://starbase.neosoft.com/~claird/comp.windows.x/Xvfb.html. I have used
> Xvfb in the past to do X processing on headless Sun servers lacking graphics
> cards.
> 
> Dave Homiak
> dhomiak@xcaliber.com
> Results! Why, man, I have gotten a lot of results. I know several thousand
> things that won't work.    --   Thomas Edison
> 
> > Date: Wed, 08 Aug 2001 17:22:20 +0800
> > From: Lin Sun-In 
> > To: vtkusers@public.kitware.com
> > Subject: [vtkusers] About OffScreen Question ^_^
> > 
> > Dear VTK author:
> > 
> > 	I have a problem about VTK. We know OpenGL fo Win32 has support
> > offscreen function , and VTK for Win32 also provide similar functions.
> > But now I want to try this feature in Unix-like platform, but i have no
> > idea. Could you please tell me any solution about this.
> > 
> > PS : Because I want to run VTK program in the background, but the
> > RenderWindow need a X-Window Server to display the result. So I must
> > login to take a window manager or set the "DISPLAY" environment variable
> > to transfer the display to another machine. But I want to have the same
> > function in Win32 OS ==> "offscreen". Could you please tell me how can i
> > do it ????
> > 
> > 				Kevin
> 
> 
> _______________________________________________
> This is the private VTK discussion list. 
> Please keep messages on-topic. Check the FAQ at: 
> Follow this link to subscribe/unsubscribe:
> http://public.kitware.com/mailman/listinfo/vtkusers
> 
> 



From 97yadavm@utsc.utoronto.ca  Thu Aug  9 22:41:34 2001
From: 97yadavm@utsc.utoronto.ca (Maneesh Yadav)
Date: Thu, 9 Aug 2001 17:41:34 -0400 (EDT)
Subject: [vtkusers] marching cubes issues..
In-Reply-To: <1BDB01B13696D411BD6200D0B7C854EAEA0A5F@chi-prd-mail1.xcaliber.com>
Message-ID: 

Hi all (again),
I've got things running now with my data (I eventually had to convert my
tiffs to pnms becuase of LZW issues)
Now I have  segmented data (if anyone is interested in the mouse atlas
paper, it is in a recent Developmental Biology, give me a mail if you
need/want to find it) and when I visualize the volumes things are
fine, and when I use thresholding things are still ok (if I pick the value
for the spine, and use vtkImageThreshold, I get a nice spine), however
when I try to contour the data, none of the filters complain about
anything, but the poly file that I write out with vtkPolyDataWriter seems
like junk (I have to scale out light years, and it just seems like a
really long triangle).  The pipeline is the one described in
Bill Lorensen's tutorial at:

http://users.info.unicaen.fr/~karczma/docs/vtkhtml/applications/segment/segmented16.html

(the parameters I use are default values that in the above URL)

I am little confused as to use vtkMarchingCubes, vtkImageMarchingCubes, or
vtkMarchingContourFilter

Here's the main part of the code:
------------------------------------------------------------------------------------

tissueValues[tissue]=206

threshold.SetInput(reader.GetOutput())
 threshold.ThresholdBetween(tissueValues[tissue], tissueValues[tissue])
 threshold.SetInValue(255)
 threshold.SetOutValue(0)
 threshold.GetOutput().ReleaseDataFlagOn()

 shrinker.SetInput(threshold.GetOutput())
 shrinker.SetShrinkFactors(options['SAMPLE RATE'][0],options['SAMPLE
RATE'][1],options['SAMPLE RATE'][2])
 shrinker.GetOutput().ReleaseDataFlagOn()

 smoothedTissueData.SetInput(shrinker.GetOutput())
 smoothedTissueData.SetDimensionality(3)
 smoothedTissueData.SetStandardDeviation(options['GAUSSIAN STDDEV'])
 smoothedTissueData.ReleaseDataFlagOn()

#EVERYTHING UP TILL HERE SEEMS OK

 mcubes.SetInput(smoothedTissueData.GetOutput())
 mcubes.ComputeScalarsOff()
 mcubes.ComputeGradientsOff()
 mcubes.ComputeNormalsOff()
 mcubes.SetValue(0,128)
 mcubes.GetOutput().ReleaseDataFlagOn()

 decimator.SetInput(mcubes.GetOutput())
 decimator.SetInitialFeatureAngle(options['DECIMATE ANGLE'])
 decimator.SetMaximumIterations(options['DECIMATE ITERATIONS'])
 decimator.SetMaximumSubIterations(0)
 decimator.PreserveEdgesOn()
 decimator.SetMaximumError(1)
 decimator.SetTargetReduction(options['DECIMATE REDUCTION'])
 decimator.SetInitialError(options['DECIMATE ERROR'])
 decimator.SetErrorIncrement(options['DECIMATE ERROR INC'])
 decimator.GetOutput().ReleaseDataFlagOn()

 smoother.SetInput(decimator.GetOutput())
 smoother.SetNumberOfIterations(options['SMOOTH ITERATIONS'])
 smoother.SetRelaxationFactor(options['SMOOTH ITERATIONS'])
 smoother.SetFeatureAngle(options['SMOOTH ANGLE'])
 smoother.FeatureEdgeSmoothingOff()
 smoother.BoundarySmoothingOff()
 smoother.SetConvergence(0)
 smoother.GetOutput().ReleaseDataFlagOn()

 normals.SetInput(smoother.GetOutput())
 normals.SetFeatureAngle(options['FEATURE ANGLE'])
 normals.GetOutput().ReleaseDataFlagOn()

 stripper.SetInput(normals.GetOutput())
 stripper.GetOutput().ReleaseDataFlagOn()

 writer.SetInput(stripper.GetOutput())
 writer.SetFileName(tissue + '.vtk' )
 writer.SetFileType(2)

 writer.Write()
----------------------------------------------------------------------


I don't think the issue is the decimator or the smoother...



From wlorens1@nycap.rr.com  Fri Aug 10 01:15:31 2001
From: wlorens1@nycap.rr.com (Bill Lorensen)
Date: Thu, 09 Aug 2001 20:15:31 -0400
Subject: [vtkusers] marching cubes issues..
In-Reply-To: 
References: <1BDB01B13696D411BD6200D0B7C854EAEA0A5F@chi-prd-mail1.xcaliber.com>
Message-ID: <4.2.2.20010809201340.01633d90@pop.nycap.rr.com>

You should use vtkMarchngCubes. Your pipeline looks fine. Try displaying the output of MarchingCubes.

What version of vtk are you using?

Bill

At 05:41 PM 8/9/01 -0400, Maneesh Yadav wrote:
>Hi all (again),
>I've got things running now with my data (I eventually had to convert my
>tiffs to pnms becuase of LZW issues)
>Now I have  segmented data (if anyone is interested in the mouse atlas
>paper, it is in a recent Developmental Biology, give me a mail if you
>need/want to find it) and when I visualize the volumes things are
>fine, and when I use thresholding things are still ok (if I pick the value
>for the spine, and use vtkImageThreshold, I get a nice spine), however
>when I try to contour the data, none of the filters complain about
>anything, but the poly file that I write out with vtkPolyDataWriter seems
>like junk (I have to scale out light years, and it just seems like a
>really long triangle).  The pipeline is the one described in
>Bill Lorensen's tutorial at:
>
>http://users.info.unicaen.fr/~karczma/docs/vtkhtml/applications/segment/segmented16.html
>
>(the parameters I use are default values that in the above URL)
>
>I am little confused as to use vtkMarchingCubes, vtkImageMarchingCubes, or
>vtkMarchingContourFilter
>
>Here's the main part of the code:
>------------------------------------------------------------------------------------
>
>tissueValues[tissue]=206
>
>threshold.SetInput(reader.GetOutput())
>  threshold.ThresholdBetween(tissueValues[tissue], tissueValues[tissue])
>  threshold.SetInValue(255)
>  threshold.SetOutValue(0)
>  threshold.GetOutput().ReleaseDataFlagOn()
>
>  shrinker.SetInput(threshold.GetOutput())
>  shrinker.SetShrinkFactors(options['SAMPLE RATE'][0],options['SAMPLE
>RATE'][1],options['SAMPLE RATE'][2])
>  shrinker.GetOutput().ReleaseDataFlagOn()
>
>  smoothedTissueData.SetInput(shrinker.GetOutput())
>  smoothedTissueData.SetDimensionality(3)
>  smoothedTissueData.SetStandardDeviation(options['GAUSSIAN STDDEV'])
>  smoothedTissueData.ReleaseDataFlagOn()
>
>#EVERYTHING UP TILL HERE SEEMS OK
>
>  mcubes.SetInput(smoothedTissueData.GetOutput())
>  mcubes.ComputeScalarsOff()
>  mcubes.ComputeGradientsOff()
>  mcubes.ComputeNormalsOff()
>  mcubes.SetValue(0,128)
>  mcubes.GetOutput().ReleaseDataFlagOn()
>
>  decimator.SetInput(mcubes.GetOutput())
>  decimator.SetInitialFeatureAngle(options['DECIMATE ANGLE'])
>  decimator.SetMaximumIterations(options['DECIMATE ITERATIONS'])
>  decimator.SetMaximumSubIterations(0)
>  decimator.PreserveEdgesOn()
>  decimator.SetMaximumError(1)
>  decimator.SetTargetReduction(options['DECIMATE REDUCTION'])
>  decimator.SetInitialError(options['DECIMATE ERROR'])
>  decimator.SetErrorIncrement(options['DECIMATE ERROR INC'])
>  decimator.GetOutput().ReleaseDataFlagOn()
>
>  smoother.SetInput(decimator.GetOutput())
>  smoother.SetNumberOfIterations(options['SMOOTH ITERATIONS'])
>  smoother.SetRelaxationFactor(options['SMOOTH ITERATIONS'])
>  smoother.SetFeatureAngle(options['SMOOTH ANGLE'])
>  smoother.FeatureEdgeSmoothingOff()
>  smoother.BoundarySmoothingOff()
>  smoother.SetConvergence(0)
>  smoother.GetOutput().ReleaseDataFlagOn()
>
>  normals.SetInput(smoother.GetOutput())
>  normals.SetFeatureAngle(options['FEATURE ANGLE'])
>  normals.GetOutput().ReleaseDataFlagOn()
>
>  stripper.SetInput(normals.GetOutput())
>  stripper.GetOutput().ReleaseDataFlagOn()
>
>  writer.SetInput(stripper.GetOutput())
>  writer.SetFileName(tissue + '.vtk' )
>  writer.SetFileType(2)
>
>  writer.Write()
>----------------------------------------------------------------------
>
>
>I don't think the issue is the decimator or the smoother...
>
>
>_______________________________________________
>This is the private VTK discussion list. 
>Please keep messages on-topic. Check the FAQ at: 
>Follow this link to subscribe/unsubscribe:
>http://public.kitware.com/mailman/listinfo/vtkusers 




From Oliver.Fleig@univ-rennes1.fr  Thu Aug  9 15:27:28 2001
From: Oliver.Fleig@univ-rennes1.fr (Oliver Fleig)
Date: Thu, 9 Aug 2001 16:27:28 +0200
Subject: [vtkusers] vtkQGL, editing source code required?
In-Reply-To: <3B7153CB.34817F49@hfm.e-technik.uni-kassel.de>
References: <200107121600.MAA24781@public.kitware.com> <3B7153CB.34817F49@hfm.e-technik.uni-kassel.de>
Message-ID: <01080916272800.01977@pcvideo>

--------------Boundary-00=_SH1T94213MNW394K07A4
Content-Type: text/plain;
  charset="iso-8859-1"
Content-Transfer-Encoding: 8bit

On Wednesday,  8. August 2001 16:59, George Kamucha wrote:

> I am installing vtkQGL (version vtkQGL_vtk31) using vtk 3.1 and Qt 2.1.0
> but when it reaches to the compilation of vtkQGLInteractorWidget.cpp, I get
> the following error:
>
> vtkQGLInteractorWidget.cpp: in method 'void
> vtkQGLInteractorWidget::PickActor(int, int)':
> vtkQGLInteractorWidget.cpp:529: type 'vtkActor' is not a base type for type
> 'vtkAssembly'
> vtkQGLInteractorWidget.cpp:533: no matching function for call to
> 'vtkQGLInteractorWidget::actorPicked(vtk Assembly *, vtkPicker *&)'
> vtkQGLInteractorWidget.h:125: candidates are:
> vtkQGLInteractorWidget::actorPicked(vtkActor *, vtkPicker *)
> make[1]: *** [vtkQGLInteractorWidget.o] Error 1
> make[1]: Leaving directory 'home/kamucha/vtkQGL31/src'
>
>
> I am left wondering, do I have to change the source code
> vtkQGLInteractorWidget.cpp or is there something that I am missing
> somewhere? 

You have to change to code!
I think it just in vtkQGLInteractorWidget.cpp. I send you a patch for 
src/tkQGLInteractorWidget.cpp.  If I remember correctly these are the only 
changes I made. 
The second patch is for Linux systems (or gcc in general???). The patch makes 
the Makefile make a "better" shared library. You have to add the "-fPIC" flag 
to CFLAGS in include.make, too (no patch for that as you have to edit that 
file anyway). With the unchanged Makefile  I had problems with the "ldconfig" 
command.


Cheers

Oliver

PS: Keep me updated




-- 
Oliver Fleig - Laboratoire IDM (fka SIM)
mailto:Oliver.Fleig@univ-rennes1.fr    



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From Kris.Nuyts@asro.kuleuven.ac.be  Fri Aug 10 10:59:18 2001
From: Kris.Nuyts@asro.kuleuven.ac.be (Nuyts, Kris)
Date: Fri, 10 Aug 2001 11:59:18 +0200
Subject: [vtkusers] vtk and intense3d3600
Message-ID: <8EA754A0CED5D4119F1D00B0D079FC30372655@asrosrv01.asro.kuleuven.ac.be>

hi,

i'm using an intense3d 3600 board on a workstation 410 dell, dual cpu
i'm having problems displaying textures that are 'relatively large'

a texture file 1024x1024 pixels appears without any problem
the same file resized to 2048x2048 does not appear...

any suggestions ?

ps: code can not be the problem, it works fine on an 'old' elsa gloria
xl board...

kris 


From c.p.botha@its.tudelft.nl  Fri Aug 10 11:13:14 2001
From: c.p.botha@its.tudelft.nl (Charl P. Botha)
Date: Fri, 10 Aug 2001 12:13:14 +0200
Subject: [vtkusers] vtk and intense3d3600
In-Reply-To: <8EA754A0CED5D4119F1D00B0D079FC30372655@asrosrv01.asro.kuleuven.ac.be>; from Kris.Nuyts@asro.kuleuven.ac.be on Fri, Aug 10, 2001 at 11:59:18AM +0200
References: <8EA754A0CED5D4119F1D00B0D079FC30372655@asrosrv01.asro.kuleuven.ac.be>
Message-ID: <20010810121314.C4552@dutidad.twi.tudelft.nl>

On Fri, Aug 10, 2001 at 11:59:18AM +0200, Nuyts, Kris wrote:
> a texture file 1024x1024 pixels appears without any problem
> the same file resized to 2048x2048 does not appear...

I don't know this specific board, but many other graphics boards have a
hardware and/or software maximum texture size.

-- 
charl p. botha      | computer graphics and cad/cam 
http://cpbotha.net/ | http://www.cg.its.tudelft.nl/


From Joris.VandenWyngaerd@esat.kuleuven.ac.be  Fri Aug 10 12:17:43 2001
From: Joris.VandenWyngaerd@esat.kuleuven.ac.be (Joris Vanden Wyngaerd)
Date: Fri, 10 Aug 2001 13:17:43 +0200
Subject: [vtkusers] fix for large OpenGL Textures
Message-ID: <000b01c1218e$136a49d0$c9bd3a86@esat.kuleuven.ac.be>

This is a multi-part message in MIME format.

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	charset="iso-8859-1"
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Hi,

OpenGL has a maximum texture size (defined by GL_MAX_TEXTURE_SIZE), which
depends on your video card/drivers.
vtk resamples an image in vtkOpenGLTexture but does not take into account
this maximum. I include a fix that does take it into account.


================
Joris Vanden Wyngaerd
coordinates : http://www.esat.kuleuven.ac.be/~joris/personalia.html

"Quand les degoûtés s'en vont il ne restent que les degoûtants"


------=_NextPart_000_000C_01C1219E.D6F319D0
Content-Type: application/octet-stream;
	name="vtkPSIOpenGLTexture.cpp"
Content-Transfer-Encoding: quoted-printable
Content-Disposition: attachment;
	filename="vtkPSIOpenGLTexture.cpp"

// vtkPSIOpenGLTexture.cpp: implementation of the vtkPSIOpenGLTexture =
class.
//
//////////////////////////////////////////////////////////////////////

#include "stdafx.h"
#include "vtkPSIOpenGLTexture.h"
#include "vtkPSIGlobalFunctions.h"
#include "vtkPSIDebugFunctions.h"
#include "vtkRenderWindow.h"
#include 

#ifdef _DEBUG
#undef THIS_FILE
static char THIS_FILE[]=3D__FILE__;
#define new DEBUG_NEW
#endif

//////////////////////////////////////////////////////////////////////
// Construction/Destruction
//////////////////////////////////////////////////////////////////////

vtkPSIOpenGLTexture::vtkPSIOpenGLTexture()
{

}

vtkPSIOpenGLTexture::~vtkPSIOpenGLTexture()
{

}
/*
// Release the graphics resources used by this texture. =20
void vtkPSIOpenGLTexture::ReleaseGraphicsResources(vtkWindow *renWin)
{
	// removed because of memory violation when texture exists
	// problem : renWin->MakeCurrent() is called on freed memory
//	return;
	// TODO CODE QUALITY : fix this
	// =3D> done by changing order of deleting renderer and rendererwindow

  if (this->Index && renWin)
    {
    ((vtkRenderWindow *) renWin)->MakeCurrent();
#ifdef GL_VERSION_1_1
    // free any textures
    if (glIsTexture(this->Index))
      {
      GLuint tempIndex;
      tempIndex =3D this->Index;
      // NOTE: Sun's OpenGL seems to require disabling of texture before =
delete
      glDisable(GL_TEXTURE_2D);
      glDeleteTextures(1, &tempIndex);
      }
#else
    if (glIsList(this->Index))
      {
      glDeleteLists(this->Index,1);
      }
#endif
    }
  this->Index =3D 0;
  this->RenderWindow =3D NULL;
  this->Modified();
}
*/
void vtkPSIOpenGLTexture::Load(vtkRenderer *ren)
{
    // code copied from vtk, adapted to also be robust against textures =
that are to big
  GLenum format =3D GL_LUMINANCE;

  // need to reload the texture
  if (this->GetMTime() > this->LoadTime.GetMTime() ||
      this->Input->GetMTime() > this->LoadTime.GetMTime() ||
      (this->GetLookupTable() && this->GetLookupTable()->GetMTime () >
       this->LoadTime.GetMTime()))
    {
    int bytesPerPixel;
    int *size;
    vtkScalars *scalars;
    unsigned char *dataPtr;
    int rowLength;
    unsigned char *resultData=3DNULL;
    int xsize, ysize;
    unsigned short xs,ys;
    GLuint tempIndex;

    // get some info
    size =3D this->Input->GetDimensions();
    scalars =3D (this->Input->GetPointData())->GetScalars();

    // make sure scalars are non null
    if (!scalars)
      {
      vtkErrorMacro(<< "No scalar values found for texture input!");
      return;
      }

    bytesPerPixel =3D scalars->GetNumberOfComponents();

    // make sure using unsigned char data of color scalars type
    if (this->MapColorScalarsThroughLookupTable ||
       scalars->GetDataType() !=3D VTK_UNSIGNED_CHAR )
      {
      dataPtr =3D this->MapScalarsToColors (scalars);
      bytesPerPixel =3D 4;
      }
    else
      {
      dataPtr =3D ((vtkUnsignedCharArray =
*)scalars->GetData())->GetPointer(0);
      }

    // we only support 2d texture maps right now
    // so one of the three sizes must be 1, but it
    // could be any of them, so lets find it
    if (size[0] =3D=3D 1)
      {
      xsize =3D size[1]; ysize =3D size[2];
      }
    else
      {
      xsize =3D size[0];
      if (size[1] =3D=3D 1)
        {
        ysize =3D size[2];
        }
      else
        {
        ysize =3D size[1];
        if (size[2] !=3D 1)
          {
          vtkErrorMacro(<< "3D texture maps currently are not =
supported!");
          return;
          }
        }
      }

    // xsize and ysize must be a power of 2 in OpenGL
    xs =3D (unsigned short)xsize;
    ys =3D (unsigned short)ysize;
    while (!(xs & 0x01))
      {
        xs =3D xs >> 1;
      }
    while (!(ys & 0x01))
      {
        ys =3D ys >> 1;
      }

    // JORIS : resampling has to be done if
    // it is not power of two or if it is to big
    bool resampleNeeded =3D false;
    if ((xs > 1)||(ys > 1))
    {
        resampleNeeded =3D true;
    }
    int maxDimGL;
    glGetIntegerv(GL_MAX_TEXTURE_SIZE,&maxDimGL);
    if ( xsize > maxDimGL || ysize > maxDimGL )
    {
        vtkPSIDebugMacro( "Texture too big for gl, maximum is " << =
maxDimGL);
        resampleNeeded =3D true;
    }
    if ( resampleNeeded )
    {
        vtkDebugMacro(<< "Resampling texture to power of two for =
OpenGL");
        resultData =3D this->ResampleToPowerOfTwo(xsize, ysize, dataPtr,
                                              bytesPerPixel);
    }

    // format the data so that it can be sent to opengl
    // each row must be a multiple of 4 bytes in length
    // the best idea is to make your size a multiple of 4
    // so that this conversion will never be done.
    rowLength =3D ((xsize*bytesPerPixel +3 )/4)*4;
    if (rowLength =3D=3D xsize*bytesPerPixel)
      {
      if ( resultData =3D=3D NULL )
        {
        resultData =3D dataPtr;
        }
      }
    else
      {
      int col;
      unsigned char *src,*dest;
      int srcLength;

      srcLength =3D xsize*bytesPerPixel;
      resultData =3D new unsigned char [rowLength*ysize];

      src =3D dataPtr;
      dest =3D resultData;

      for (col =3D 0; col < ysize; col++)
        {
        memcpy(dest,src,srcLength);
        src +=3D srcLength;
        dest +=3D rowLength;
        }
      }

    // define a display list for this texture
    // free any old display lists
    if (this->Index)
      {
#ifdef GL_VERSION_1_1
      tempIndex =3D this->Index;
      glDeleteTextures(1, &tempIndex);
#else
      glDeleteLists(this->Index,1);
#endif
      this->Index =3D 0;
      }
    // get a unique display list id
#ifdef GL_VERSION_1_1
    glGenTextures(1, &tempIndex);
    this->Index =3D tempIndex;
    glBindTexture(GL_TEXTURE_2D, this->Index);
#else
    this->Index =3D glGenLists(1);
    glDeleteLists ((GLuint) this->Index, (GLsizei) 0);
    glNewList ((GLuint) this->Index, GL_COMPILE);
#endif
    if (this->Interpolate)
      {
      glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER,
                       GL_LINEAR);
      glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER,
                       GL_LINEAR );
      }
    else
      {
      glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST =
);
      glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST =
);
      }
    if (this->Repeat)
      {
      glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S,     GL_REPEAT =
);
      glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T,     GL_REPEAT =
);
      }
    else
      {
      glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S,     GL_CLAMP );
      glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T,     GL_CLAMP );
      }
    switch (bytesPerPixel)
      {
      case 1: format =3D GL_LUMINANCE; break;
      case 2: format =3D GL_LUMINANCE_ALPHA; break;
      case 3: format =3D GL_RGB; break;
      case 4: format =3D GL_RGBA; break;
      }
    glTexImage2D( GL_TEXTURE_2D, 0 , bytesPerPixel,
                  xsize, ysize, 0, format,
                  GL_UNSIGNED_BYTE, (const GLvoid *)resultData );
#ifndef GL_VERSION_1_1
    glEndList ();
#endif
    // modify the load time to the current time
    this->LoadTime.Modified();

    // free memory
    if (resultData !=3D dataPtr)
      {
      delete [] resultData;
      }
    }

  // execute the display list that uses creates the texture
#ifdef GL_VERSION_1_1
  glBindTexture(GL_TEXTURE_2D, this->Index);
#else
  glCallList ((GLuint) this->Index);
#endif

  // don't accept fragments if they have zero opacity. this will stop =
the
  // zbuffer from be blocked by totally transparent texture fragments.
  glAlphaFunc (GL_GREATER, (GLclampf) 0);
  glEnable (GL_ALPHA_TEST);

  // now bind it
  glEnable(GL_TEXTURE_2D);

}
static int FindPowerOfTwo(int i)
{
    int size;

    for ( i--, size=3D1; i > 0; size*=3D2 )
    {
        i /=3D 2;
    }
    int maxDimGL;
    glGetIntegerv(GL_MAX_TEXTURE_SIZE,&maxDimGL);
    if ( size > maxDimGL )
    {
        size =3D maxDimGL ;
    }
    return size;
}

unsigned char * vtkPSIOpenGLTexture::ResampleToPowerOfTwo(int &xs, int =
&ys, unsigned char *dptr, int bpp)
{
    // copied from vtk, but FindPowerOfTwo is adapted
  unsigned char *tptr, *p, *p1, *p2, *p3, *p4;
  int xsize, ysize, i, j, k, jOffset, iIdx, jIdx;
  float pcoords[3], hx, hy, rm, sm, w0, w1, w2, w3;

  xsize =3D FindPowerOfTwo(xs);
  ysize =3D FindPowerOfTwo(ys);

  hx =3D (float)(xs - 1.0) / (xsize - 1.0);
  hy =3D (float)(ys - 1.0) / (ysize - 1.0);

  tptr =3D p =3D new unsigned char[xsize*ysize*bpp];

  //Resample from the previous image. Compute parametric coordinates and =
interpolate
  for (j=3D0; j < ysize; j++)
    {
    pcoords[1] =3D j*hy;

    jIdx =3D (int)pcoords[1];
    if ( jIdx >=3D (ys-1) ) //make sure to interpolate correctly at edge
      {
      jIdx =3D ys - 2;
      pcoords[1] =3D 1.0;
      }
    else
      {
      pcoords[1] =3D pcoords[1] - jIdx;
      }
    jOffset =3D jIdx*xs;
    sm =3D 1.0 - pcoords[1];

    for (i=3D0; i < xsize; i++)
      {
      pcoords[0] =3D i*hx;
      iIdx =3D (int)pcoords[0];
      if ( iIdx >=3D (xs-1) )
        {
        iIdx =3D xs - 2;
        pcoords[0] =3D 1.0;
        }
      else
        {
        pcoords[0] =3D pcoords[0] - iIdx;
        }
      rm =3D 1.0 - pcoords[0];

      // Get pointers to 4 surrounding pixels
      p1 =3D dptr + bpp*(iIdx + jOffset);
      p2 =3D p1 + bpp;
      p3 =3D p1 + bpp*xs;
      p4 =3D p3 + bpp;

      // Compute interpolation weights interpolate components
      w0 =3D rm*sm;
      w1 =3D pcoords[0]*sm;
      w2 =3D rm*pcoords[1];
      w3 =3D pcoords[0]*pcoords[1];
      for (k=3D0; k < bpp; k++)
        {
        *p++ =3D p1[k]*w0 + p2[k]*w1 + p3[k]*w2 + p4[k]*w3;
        }
      }
    }

  xs =3D xsize;
  ys =3D ysize;

  return tptr;

}

------=_NextPart_000_000C_01C1219E.D6F319D0
Content-Type: application/octet-stream;
	name="vtkPSIOpenGLTexture.h"
Content-Transfer-Encoding: quoted-printable
Content-Disposition: attachment;
	filename="vtkPSIOpenGLTexture.h"

// vtkPSIOpenGLTexture.h: interface for the vtkPSIOpenGLTexture class.
//
//////////////////////////////////////////////////////////////////////

#if =
!defined(AFX_VTKPSIOPENGLTEXTURE_H__5DF776DA_C9A9_11D3_B932_080036DAD703_=
_INCLUDED_)
#define =
AFX_VTKPSIOPENGLTEXTURE_H__5DF776DA_C9A9_11D3_B932_080036DAD703__INCLUDED=
_

#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000

#include "vtkPSITexture.h"
class vtkRenderer;

// this will automatically resample to power of two, but also=20
// take into account limits of OpenGL
	// TODO EFFICIENCY :=20
	// TODO FUNCTIONALITY :=20
	// Do it smarter : ss3d texture are often very unefficient, with big =
unused parts
	// Cropping should be interesting, however, then texture coordinates =
have to be changed too

class vtkPSIOpenGLTexture : public vtkPSITexture =20
{
public:
//	virtual void ReleaseGraphicsResources(vtkWindow *);
	void Load(vtkRenderer *ren);
	vtkPSIOpenGLTexture();
	virtual ~vtkPSIOpenGLTexture();
	vtkTypeMacro(vtkPSIOpenGLTexture,vtkPSITexture);
	static vtkPSIOpenGLTexture *New() {return new vtkPSIOpenGLTexture;};

protected:
	unsigned char * ResampleToPowerOfTwo(int &xsize, int &ysize, unsigned =
char *dptr, int bpp);
};

#endif // =
!defined(AFX_VTKPSIOPENGLTEXTURE_H__5DF776DA_C9A9_11D3_B932_080036DAD703_=
_INCLUDED_)

------=_NextPart_000_000C_01C1219E.D6F319D0--



From jnorris@mcs.anl.gov  Fri Aug 10 15:49:34 2001
From: jnorris@mcs.anl.gov (Johnny Norris)
Date: Fri, 10 Aug 2001 09:49:34 -0500
Subject: [vtkusers] Easy was to remove empty cells, unused points?
Message-ID: <20010810094934.A6550@lava.mcs.anl.gov>

Hi,

I'd like to know is if there's an existing filter to remove empty cells
and/or any unused points from a vtkPolyData object.  I have to remove a large
percentage of cells from a vtkPolyData object, and I'd like to reclaim the
memory used by the VTK_EMPTY_CELL placeholders and the unused points.  It
doesn't seem that vtkCleanPolyData does it, nor does simply calling the
Squeeze() method.

Thanks for any pointers,
John
-- 
John Norris
Research Programmer
Center for Simulation of Advanced Rockets
http://www.uiuc.edu/ph/www/jnorris


From kamucha@hfm.e-technik.uni-kassel.de  Fri Aug 10 15:55:12 2001
From: kamucha@hfm.e-technik.uni-kassel.de (George Kamucha)
Date: Fri, 10 Aug 2001 16:55:12 +0200
Subject: [vtkusers] vtkQGL, editing source code required?
References: <200107121600.MAA24781@public.kitware.com> <3B7153CB.34817F49@hfm.e-technik.uni-kassel.de> <3B726D5B.3229CA04@student.mu-luebeck.de>
Message-ID: <3B73F5D0.A608C28C@hfm.e-technik.uni-kassel.de>

Hi Fabian,
I downloaded vtk 3.1.2, compiled it and that did part of the trick, the installation of the
vtkQGL31 sources was successful! But I have spent the last 26 hours or so trying to figure out why
the compilation fails in the examples' directory. I am at my wits' ends and please if you have an
idea about this error, please let me know, I will really appreciate. I am using qt 2.1.0 and I had
thought I had set all the paths properly but something is definitely not right. Here is one of the
the error messages I am getting:

make[1]: Entering directory '/home/kamucha/vtkQGL31/examples'
g++ -o simpleTest simpleTest.o -L../lib -L/usr/lib/qt/lib -L/home/kamucha/vtk312unix/vtk31/../lib
-L/usr/X11R6/lib
-lVTKQGL -lqgl -lqt -lVTKContrib -lVTKGraphics -lVTKPatented -lVTKImaging -lVTKCommon -lVTKGraphics

-lGL -lX11 -lXt -lXmu -lXext -lm -lstdc++
../lib/libVTKQGL.a(moc_vtkQGLWidget.o): in function 'vtkQGLWidget::initMetaObject(void)':
moc_vtkQGLWidget.o(.text+0x1c): undefined reference to 'QGLWidget::className(void)const'
.........................................................................................................



Best regards
George


Fabian Eilers wrote:

> Hello!
>
> I've compiled vtkQGL (version vtk31) under Solaris Unix, IRIX 6.4 and Linux (mesa 2.4)
> sucessfully.There are no problems. I use vtk 3.1.2 and qt 2.3.0 !!
> My idea: check all INCLUDE-Pathes in the Makefile, and change them to your own
> interests. Which system do you use (and which version?).
>
> Where are the VTK Headers (do you use vtk 3.2.0 or vtk 3.1.2), doesn't work with vtk 3.2.0,
> therefore you must change the source files --> use vtk 3.1.2.
>
> If you want to, I take a look at the files tomorrow. I use them to write my own application and
> therefore I must change them to my own interests.
>
> Greetings
> Fabian
>
> ----------------------------------------
> Fabian Eilers
> An der Mauer 39/41
> 23552 Lübeck
> eilers@informatik.mu-luebeck.de
> -----------------------------------------
>
> George Kamucha schrieb:
>
> > Hi all,
> > I am installing vtkQGL (version vtkQGL_vtk31) using vtk 3.1 and Qt 2.1.0 but
> > when it reaches to the compilation of vtkQGLInteractorWidget.cpp, I get the
> > following error:
> >
> > vtkQGLInteractorWidget.cpp: in method 'void
> > vtkQGLInteractorWidget::PickActor(int, int)':
> > vtkQGLInteractorWidget.cpp:529: type 'vtkActor' is not a base type for type
> > 'vtkAssembly'
> > vtkQGLInteractorWidget.cpp:533: no matching function for call to
> > 'vtkQGLInteractorWidget::actorPicked(vtk Assembly *, vtkPicker *&)'
> > vtkQGLInteractorWidget.h:125: candidates are:
> > vtkQGLInteractorWidget::actorPicked(vtkActor *, vtkPicker *)
> > make[1]: *** [vtkQGLInteractorWidget.o] Error 1
> > make[1]: Leaving directory 'home/kamucha/vtkQGL31/src'
> >
> > I am left wondering, do I have to change the source code
> > vtkQGLInteractorWidget.cpp or is there something that I am missing somewhere?
> > Please, anybody with an idea on this give me the necessary tip, it will be
> > highly appreciated, thanks
> > George
> >
> > _______________________________________________
> > This is the private VTK discussion list.
> > Please keep messages on-topic. Check the FAQ at: 
> > Follow this link to subscribe/unsubscribe:
> > http://public.kitware.com/mailman/listinfo/vtkusers

-



From anast.jm@pg.com  Fri Aug 10 16:08:37 2001
From: anast.jm@pg.com (anast.jm@pg.com)
Date: Fri, 10 Aug 2001 11:08:37 -0400
Subject: Weird ==> Re: [vtkusers] noise_data
Message-ID: 

This is weird, I must have sent this message to the list at least a month ago
and it just came to my email today...the immediate header below says the kitware
server sent it on 7/5/2001! Can the internet be THAT slow or is it my internal
mail problem (I hope not). Did others on the list see this message today???

.....thanks, john


                                                                
 Internet Mail Message                                          
 Received from host:      public.kitware.com                    
 [208.136.18.25]                                                
                                                                


Envelope Sender:    vtkusers-admin@public.kitware.com
From: John Anast-JM/PGI@PGI@public.kitware.com on 07/05/2001 05:10 PM AST
                                                                                          
                                John           To:   Karshi   
 Anast-JM/PGI@PGI@public.kitware.com           Cc:   vtkusers@public.kitware.com (bcc:    
                                            John Anast-JM/PGI)                            
                                       Subject:      Re: [vtkusers] noise_data            
                            Sent by:                                                      
   vtkusers-admin@public.kitware.com                                                      
                 07/05/2001 05:10 PM                                                      
                                                                                          
                                                                                          





Karshi, I've not used this class but .... from the man pages -> examples

vtkImageMedian3D
Python
./imaging/examplesPython/TestHybridMedian2D.py
./imaging/examplesPython/TestMedian3D.py
Tcl
./imaging/examplesTcl/HybridMedianComparison.tcl
./imaging/examplesTcl/MedianComparison.tcl
./imaging/examplesTcl/TestHybridMedian2D.tcl
./imaging/examplesTcl/TestMedian3D.tcl

If you don't know what I'm talking about, there is a series of man(ual) pages at
http://public.kitware.com/vtk/quality/Doc/html/ Use the alphabetical list to
find the class you are interested in using and on that classes page under
"detailed description" there is a link to the examples (thats what I've pasted
above) You will need to download the vtk source to get all the wonderful
examples, as, if I remember correctly the binary installs just give a few
examples....john



 Internet Mail Message
 Received from host:
 bureau8.utcc.utoronto.ca [128.100.132.18]



From: Karshi @utoronto.ca on 07/05/2001 03:07 PM

      Karshi            To:   John Anast-JM/PGI@PGI
                             @utoronto.ca           Cc:
                                            Subject:      Re: [vtkusers]
noise_data

           Sent by:  khasanov@utoronto.ca
                      07/05/2001 04:07 PM






Thanks John,

 Where I can find an example of using vtkImageMedian3D?
For example, if I have Ax[i,j,k],Ay[i,j,k] and Az[i,j,k] components of vector
A,and
these all StructuredPoints Data Array. How do I perform the vtkImageMedian3D
method on
these arrays?
I use python, but  I can transfer Tcl/C++ examples if  it can becan found..
Thanks again




anast.jm@pg.com wrote:

> vtkImageMedian3D or vtkImageGaussianSmooth perhaps would fit your need....john
>
>
>  Internet Mail Message
>  Received from host:      public.kitware.com
>  [208.136.18.25]
>
>
> From: Karshi @public.kitware.com on 07/04/2001
08:42
> PM
>
>              Karshi            To:
"vtkusers@public.kitware.com"
>                              @public.kitware.com

>                                                            Cc:    (bcc: John
Anast-JM/PGI)
>                                                    Subject:      [vtkusers]
noise_data
>      Sent by:  vtkusers-admin@public.kitware.com
>                              07/04/2001 09:42 PM
>
>
>
> Hi ,
>
>   Is there any method in VTK to reduce noise data (from MRI)?  I have a
> lot of noise in my data, and  having a problem to draw  streamlines.  I
>  Thanks
>
> _______________________________________________
> 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://public.kitware.com/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://public.kitware.com/mailman/listinfo/vtkusers





From Michael-Dresser@mail.omrf.ouhsc.edu  Fri Aug 10 17:41:10 2001
From: Michael-Dresser@mail.omrf.ouhsc.edu (Mike Dresser, MD, PhD)
Date: Fri, 10 Aug 2001 11:41:10 -0500
Subject: [vtkusers] MFC Sample program screen repaint problem
Message-ID: 

Hello all.

I have a problem when I run the MFC Sample program in WinNT that doesn't
occur when I use Win98.  If I close all the child windows, then open a new
one(s), I get an "ugly," degraded repaint of all areas of the display other
than the new child window(s).  Does anyone know how to fix this?  Thanks.

Mike
---------------------------

Michael E. Dresser
Email:	dresserm@omrf.ouhsc.edu



From ddey@forwardimaging.com  Fri Aug 10 18:20:09 2001
From: ddey@forwardimaging.com (Damini Dey)
Date: Fri, 10 Aug 2001 13:20:09 -0400
Subject: [vtkusers] building vtk dlls in debug mode
Message-ID: <3B7417C9.B8B13E21@forwardimaging.com>

Hi all,

Is there a way to make the vtk dlls (e.g. vtkImaging.dll or
vtkLocal.dll) with debug information ?
Thanks,

Damini.



From amy.henderson@kitware.com  Fri Aug 10 18:35:05 2001
From: amy.henderson@kitware.com (Amy Henderson)
Date: Fri, 10 Aug 2001 13:35:05 -0400
Subject: [vtkusers] building vtk dlls in debug mode
In-Reply-To: <3B7417C9.B8B13E21@forwardimaging.com>
Message-ID: <4.3.2.7.2.20010810133325.022b7ac0@pop.nycap.rr.com>

Yes.  If you are using MSVC++, in the Build menu, there is a "Set Active 
Configuration" option.  In the dialog box that comes up, select 
"Debug".  Then rebuild.

- Amy

At 01:20 PM 8/10/2001 -0400, Damini Dey wrote:
>Hi all,
>
>Is there a way to make the vtk dlls (e.g. vtkImaging.dll or
>vtkLocal.dll) with debug information ?
>Thanks,
>
>Damini.
>
>
>_______________________________________________
>This is the private VTK discussion list.
>Please keep messages on-topic. Check the FAQ at: 
>
>Follow this link to subscribe/unsubscribe:
>http://public.kitware.com/mailman/listinfo/vtkusers



From amy.henderson@kitware.com  Fri Aug 10 19:27:52 2001
From: amy.henderson@kitware.com (Amy Henderson)
Date: Fri, 10 Aug 2001 14:27:52 -0400
Subject: [vtkusers] building vtk dlls in debug mode
In-Reply-To: <4.3.2.7.2.20010810133325.022b7ac0@pop.nycap.rr.com>
References: <3B7417C9.B8B13E21@forwardimaging.com>
Message-ID: <4.3.2.7.2.20010810142614.022c0588@pop.nycap.rr.com>

The instructions below assume that you're using the new VTK tree.  To build 
with debug information in the old tree, you need to run nmake in the Debug 
directory.

- Amy

At 01:35 PM 8/10/2001 -0400, Amy Henderson wrote:
>Yes.  If you are using MSVC++, in the Build menu, there is a "Set Active 
>Configuration" option.  In the dialog box that comes up, select 
>"Debug".  Then rebuild.
>
>- Amy
>
>At 01:20 PM 8/10/2001 -0400, Damini Dey wrote:
>>Hi all,
>>
>>Is there a way to make the vtk dlls (e.g. vtkImaging.dll or
>>vtkLocal.dll) with debug information ?
>>Thanks,
>>
>>Damini.
>>
>>
>>_______________________________________________
>>This is the private VTK discussion list.
>>Please keep messages on-topic. Check the FAQ at: 
>>
>>Follow this link to subscribe/unsubscribe:
>>http://public.kitware.com/mailman/listinfo/vtkusers
>
>
>_______________________________________________
>This is the private VTK discussion list. Please keep messages on-topic. 
>Check the FAQ at: 
>Follow this link to subscribe/unsubscribe:
>http://public.kitware.com/mailman/listinfo/vtkusers



From rayg@bu.edu  Sat Aug 11 04:15:04 2001
From: rayg@bu.edu (rayg@bu.edu)
Date: Fri, 10 Aug 2001 23:15:04 -0400
Subject: [vtkusers] Animation of Datasets?
Message-ID: <200108110315.XAA58966@acsrs1.bu.edu>

Hi, I am trying to get VTK to do rudimentary animation. I have 5 data sets,
a vector field generated over 5 discrete time periods, and I would like
to display them one after the other in an animation loop. I would also
like to be able to move and interact through the data as the animation
is playing.

Is this possible? Has anyone done this?
I have looked at the examples KeyFrame.tcl and the animated bottle example, but
these are just a static playback with no ability to move through data.

I have tried loading each dataset into its own Actor, and then using the
vtk interactor in tcl, I add one data Actor to the renderer and remove the
other Actors.

e.g.
ren1 AddActor Data1Actor
ren1 RemoveActor Data2Actor
ren1 RemoveActor Data3Actor
ren1 RemoveActor Data4Actor
ren1 RemoveActor Data5Actor
renWin Render

(ren1 is a vtkRenderer, and renWin is a vtkRenderWindow)

I do this for each Dataset, adding it and removing the others.

This works somewhat but is kludgy as I must type in the commands into
the interactor in tcl. Is there any way to automate the adding and
removing of actors over time?


Thanks
Anyhelp; would be greatly appreciated.

Ray Gasser
Boston Univerity
rayg@bu.edu


From nNunn@ausport.gov.au  Sat Aug 11 05:38:35 2001
From: nNunn@ausport.gov.au (Nigel Nunn)
Date: Sat, 11 Aug 2001 14:38:35 +1000
Subject: [vtkusers] Re: Animation of Datasets?
Message-ID: <24962C31F35BD311A1450000F81F32BD05128291@elmo.ausport.gov.au>

Hi Ray, 
> I am trying to get VTK to do rudimentary animation. I have 
> 5 data sets, a vector field generated over 5 discrete time 
> periods, and I would like to display them one after the 
> other in an animation loop. I would also like to be able 
> to move and interact through the data as the animation
> is playing. 
> Is this possible? Has anyone done this? 
> I have looked at the examples KeyFrame.tcl and the animated 
> bottle example, but these are just a static playback with no 
> ability to move through data. 
> I have tried loading each dataset into its own Actor, and 
> then using the vtk interactor in tcl, I add one data Actor 
> to the renderer and remove the other Actors. 
> ... 
 
With a VC++6 / WinNT / MFC app (e.g. see demo "Sample"), 
you might get a worker thread to calc results, sending a 
message to the GUI thread to load each new dataset.  With 
two CPUs, the GUI interaction runs on one chip, while heavy 
calcs run on the other.  This keeps the interaction smooth. 
Using synchronization objects (or timers) one can adjust the 
flow of the simulation.  Freezing the GUI during long calcs 
loses marks  :-) 
Nigel 


From charlie.chang@nchc.gov.tw  Sat Aug 11 07:08:29 2001
From: charlie.chang@nchc.gov.tw (Charlie H. Chang)
Date: Sat, 11 Aug 2001 14:08:29 +0800
Subject: [vtkusers] problem on compiling VTK3.2 with MPICH
Message-ID: <000a01c1222c$0bbac720$9f3c6e8c@pavo095>

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From troberts@computing.dundee.ac.uk  Mon Aug 13 03:50:08 2001
From: troberts@computing.dundee.ac.uk (Tim Roberts)
Date: Mon, 13 Aug 2001 02:50:08 +0000
Subject: [vtkusers] Finding Edges
Message-ID: <01081302500800.03735@tigger>

I am new to VTK and it looks very interesting. I am researching human 
tracking (machine vision) and would like to know if VTK can help with this:-

- Finding the edge segments of a articulated model (person) as viewed from a 	
particular camera. Ie find the contour of the person

- Do hidden surface removal and give me back not just a picture but which 
body part is shown at a particular point. Ie find body part regions.

I need this so that I can use edge and region features to do statistics.

Thanks
Tim
University of Dundee
Scotland


From m.audette@aist.go.jp  Mon Aug 13 03:02:59 2001
From: m.audette@aist.go.jp (Michel Audette)
Date: Mon, 13 Aug 2001 11:02:59 +0900
Subject: [vtkusers] Link problem with VTK 3.2 under RH Linux 6.2 and gcc 2.95.3: abstract virtual functions.
Message-ID: <001f01c1239c$13a40070$906f1d96@MELCAS11>

This is a multi-part message in MIME format.

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	charset="iso-8859-1"
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Hello Everyone,=20

I am trying to use VTK 3.2 with Red Hat Linux 6.2 and compiled under gcc =
2.95.3, and while it compiles properly, I get the following message when =
trying to link with the libraries:=20

In file included from /home/maudette/vtk3.2/patented/vtkPatented.h:48,
                 from /home/maudette/vtk3.2/common/vtk.h:46,
                 from visualize.c++:4:
/home/maudette/vtk3.2/patented/vtkKitwareObjectFactory.h: In function
`static class vtkKitwareObjectFactory * vtkKitwareObjectFactory::New()':
/home/maudette/vtk3.2/patented/vtkKitwareObjectFactory.h:59: cannot
allocate an object of type `vtkKitwareObjectFactory'
/home/maudette/vtk3.2/patented/vtkKitwareObjectFactory.h:59:   since the
following virtual functions are abstract:
/home/maudette/vtk3.2/common/vtkObjectFactory.h:115: const char *
vtkObjectFactory::GetDescription()
make: *** [visualize] Error 1

Has anyone seen this before, or can anyone suggest a simple fix?=20

Thank you for your kind consideration. Best regards,=20

Michel Audette
Research Fellow, Surgical Simulation,=20
Surgical Assist Group, AIST,=20
Namiki 1-2, Tsukuba,=20
305-8564, Japan


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Hello Everyone, 


 


I am trying to use VTK 3.2 with Red Hat =
Linux 6.2=20
and compiled under gcc 2.95.3, and while it compiles properly, I get the =

following message when trying to link with the libraries: 


 


In file included from=20
/home/maudette/vtk3.2/patented/vtkPatented.h:48,
   &nb=
sp;           &nbs=
p;=20
from=20
/home/maudette/vtk3.2/common/vtk.h:46,
     &=
nbsp;          =20
from=20
visualize.c++:4:
/home/maudette/vtk3.2/patented/vtkKitwareObjectFactor=
y.h: In=20
function
`static class vtkKitwareObjectFactory *=20
vtkKitwareObjectFactory::New()':
/home/maudette/vtk3.2/patented/vtkKit=
wareObjectFactory.h:59:=20
cannot
allocate an object of type=20
`vtkKitwareObjectFactory'
/home/maudette/vtk3.2/patented/vtkKitwareObj=
ectFactory.h:59:  =20
since the
following virtual functions are=20
abstract:
/home/maudette/vtk3.2/common/vtkObjectFactory.h:115: const =
char=20
*
vtkObjectFactory::GetDescription()
make: *** [visualize] Error=20
1


Has anyone seen this before, or can =
anyone suggest=20
a simple fix? 


 


Thank you for your kind consideration. =
Best=20
regards, 


Michel Audette
Research Fellow, =
Surgical=20
Simulation, 
Surgical Assist Group, AIST, 
Namiki 1-2, Tsukuba,=20

305-8564, Japan


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From charlie.chang@nchc.gov.tw  Mon Aug 13 03:20:43 2001
From: charlie.chang@nchc.gov.tw (Charlie H. Chang)
Date: Mon, 13 Aug 2001 10:20:43 +0800
Subject: [vtkusers] testing - please ignore this message.  Sorry!
Message-ID: <001701c1239e$8ea24a50$9f3c6e8c@pavo095>

This is a multi-part message in MIME format.

------=_NextPart_000_0018_01C123E1.9CC58A50
Content-Type: text/plain;
	charset="big5"
Content-Transfer-Encoding: 8bit

I am testing my email client.
I was told my previous posting are not readable because I accidently enable
the
base 64 encoding scheme on outlook....
Sorry.

Charlie H. Chang (±i§»¥Í)
charlie.chang@nchc.gov.tw
National Center for High-performance Computing
Tel: +886-3-5776085 x362
Fax: +886-3-3538



------=_NextPart_000_0018_01C123E1.9CC58A50
Content-Type: text/html;
	charset="big5"
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I am testing my email =
client.


I was told my previous posting are =
not=20
readable because I accidently enable the 


base 64 encoding scheme on=20
outlook....


Sorry.


 


Charlie H. =
Chang=20
(=B1i=A7=BB=A5=CD)



National=20
Center for High-performance Computing


Tel: +886-3-5776085 x362


Fax: +886-3-3538


 


 


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From charlie.chang@nchc.gov.tw  Mon Aug 13 03:33:59 2001
From: charlie.chang@nchc.gov.tw (Charlie H. Chang)
Date: Mon, 13 Aug 2001 10:33:59 +0800
Subject: [vtkusers] Help on VTK3.2 compiling error with MPICH
Message-ID: <001e01c123a0$68d6c650$9f3c6e8c@pavo095>

Hi all,

I have tried to compile VTK3.2 and VTK nightly with
"--with-mpi --with-parallel ..." options.
And I was told to put  "MPI_INCLUDE" and "MPI_LIBS" in my user.make file.
But I got some compiling error:
     "c++: cannot specify   -o with -c or -S and multiple compilations".

So I removed the "MPI_INCLUDE" and it seemed better and I got as far as
the compiler trying to do "make" in the parallel directoy. (it couldn't find
the mpi.h etc)

Does anyone know how to get this fix?
Thank you in advance!

Charlie H. Chang
charlie.chang@nchc.gov.tw
National Center for High-performance Computing
Tel: +886-3-5776085 x362
Fax: +886-3-3538



From eilers@informatik.mu-luebeck.de  Mon Aug 13 12:05:15 2001
From: eilers@informatik.mu-luebeck.de (Fabian Eilers)
Date: Mon, 13 Aug 2001 13:05:15 +0200
Subject: [vtkusers] vtkQGL, editing source code required?
References: <200107121600.MAA24781@public.kitware.com> <3B7153CB.34817F49@hfm.e-technik.uni-kassel.de> <3B726D5B.3229CA04@student.mu-luebeck.de> <3B73F5D0.A608C28C@hfm.e-technik.uni-kassel.de>
Message-ID: <3B77B46B.B952E2F1@informatik.mu-luebeck.de>

This is a multi-part message in MIME format.
--------------18876D6F95D18176882A0BBC
Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: 7bit

Hi !!

There is a failure in the "moc-compilation". Qt uses this for their SIGNAL-SLOT-Konzept.
But I don't realize where...

Which compiler do you use ? Try another. Perhaps it works.

Try another qt-Version. I prefer qt 2.3.0, because you don't have the qgl-Library anymore.
But take a look at the attachments.

I have no other ideas. Sorry. It's "try and error".

On a SGI you must have the right order:
- the include pathes first -> I..../vtk312/common, then /graphics, then /imaging, then /contrib, then
/patented
- then the libraries in same order -> L..../vtk312/common -lVTKCommon, and so on...

I sent the Makefile of my compilation as attachment. It works.

Greetings
Fabian




George Kamucha wrote:

> Hi Fabian,
> I downloaded vtk 3.1.2, compiled it and that did part of the trick, the installation of the
> vtkQGL31 sources was successful! But I have spent the last 26 hours or so trying to figure out why
> the compilation fails in the examples' directory. I am at my wits' ends and please if you have an
> idea about this error, please let me know, I will really appreciate. I am using qt 2.1.0 and I had
> thought I had set all the paths properly but something is definitely not right. Here is one of the
> the error messages I am getting:
>
> make[1]: Entering directory '/home/kamucha/vtkQGL31/examples'
> g++ -o simpleTest simpleTest.o -L../lib -L/usr/lib/qt/lib -L/home/kamucha/vtk312unix/vtk31/../lib
> -L/usr/X11R6/lib
> -lVTKQGL -lqgl -lqt -lVTKContrib -lVTKGraphics -lVTKPatented -lVTKImaging -lVTKCommon -lVTKGraphics
>
> -lGL -lX11 -lXt -lXmu -lXext -lm -lstdc++
> ../lib/libVTKQGL.a(moc_vtkQGLWidget.o): in function 'vtkQGLWidget::initMetaObject(void)':
> moc_vtkQGLWidget.o(.text+0x1c): undefined reference to 'QGLWidget::className(void)const'
> .........................................................................................................

--------------18876D6F95D18176882A0BBC
Content-Type: text/plain; charset=us-ascii;
 name="include-sgi.make"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline;
 filename="include-sgi.make"

 
# 
CFLAGS = -g -fullwarn -woff 1681,1375
#CFLAGS = -O2 -fullwarn -woff 1681,1375
LIBCFLAGS = 
YACCCFLAGS = -woff 3262,3203
LFLAGS = 
CC = CC
SHELL =	/bin/sh

LIBPREFIX = lib
LIBNAME = VTKQGL
LIBSUFFIX = .a

#------------------------------------------------------------------------------
# user-editable QT - defines.
QTDIR = /opt/local/qt-2.3.0

MOC = $(QTDIR)/bin/moc

QT_INCL    = -I$(QTDIR)/include
QT_LDFLAGS = -L/opt/local/qt-2.3.0/lib 
QT_LIBS	   = -lqt

#------------------------------------------------------------------------------
# user-editable VTK - defines.

VTK_CXX_FLAGS	= -DVTK_WORDS_BIGENDIAN \
			-DVTK_USE_PTHREADS \
			-D_HP_NO_FAST_MACROS -DHAVE_LIMITS_H -DHAVE_UNISTD_H
TOOLKIT_FLAGS    =  -DVTK_USE_GRAPHICS -DVTK_USE_IMAGING \
			-DVTK_USE_PATENTED -DVTK_USE_CONTRIB 
GRAPHICS_FLAGS   =  -DVTK_USE_GLR -DVTK_USE_OGLR 

VTKDIR 		= /opt/local/vtk312
VTK_FLAGS 	= ${VTK_CXX_FLAGS} ${TOOLKIT_FLAGS} ${GRAPHICS_FLAGS}
VTK_INCL 	= -I${VTKDIR}/common -I${VTKDIR}/graphics \
			-I${VTKDIR}/patented -I${VTKDIR}/imaging \
			-I${VTKDIR}/contrib

VTK_LDFLAG  	= -L$(VTKDIR)/lib 
VTK_LIBS	= -lVTKContrib -lVTKGraphics -lVTKPatented \
		  -lVTKImaging -lVTKCommon -lVTKGraphics 
#------------------------------------------------------------------------------
# user-editable GL - defines.
# Include path and libraries for Mesa.
# For SGI OpenGL: replace MesaGL with GL and MesaGLU with GLU.
GL_INCL	= -I/usr/include
GL_LDFLAG =
GL_LIBS = -lGL -lX11 -lXt -lXmu -lXext -lm -lpthread

#------------------------------------------------------------------------------
# 

INCL   = -I../src $(QT_INCL) $(VTK_INCL) $(GL_INCL)

LFLAGS = -L../lib $(QT_LDFLAGS) $(VTK_LDFLAG) $(GL_LDFLAG)
LIBS   = $(QT_LIBS) $(VTK_LIBS) $(GL_LIBS) 
#-lgl  

###### Implicit rules

.SUFFIXES: .cpp .C

.cpp.o:
	$(CC) -c $(CFLAGS) $(VTK_FLAGS) $(INCL) -o $@ $<

.C.o:
	$(CC) -c $(CFLAGS) $(VTK_FLAGS) $(INCL) -o $@ $<

--------------18876D6F95D18176882A0BBC
Content-Type: text/plain; charset=us-ascii;
 name="include-linux.make"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline;
 filename="include-linux.make"

 
# 
CFLAGS = -O2
#LIBCFLAGS = 
#YACCCFLAGS =
#LFLAGS = 
CC = g++
SHELL =	/bin/sh

LIBPREFIX = lib
LIBNAME = VTKQGL
LIBSUFFIX = .a

#------------------------------------------------------------------------------
# user-editable QT - defines.
QTDIR = /usr/lib/qt

MOC = $(QTDIR)/bin/moc

QT_INCL    = -I$(QTDIR)/include
QT_LDFLAGS = -L/opt/qt/lib 
QT_LIBS	   = -lqgl -lqt

#------------------------------------------------------------------------------
# user-editable VTK - defines.

VTK_CXX_FLAGS	= -DVTK_WORDS_BIGENDIAN \
			-DVTK_USE_SPROC \
			-D_HP_NO_FAST_MACROS -DHAVE_LIMITS_H -DHAVE_UNISTD_H
TOOLKIT_FLAGS    =  -DVTK_USE_GRAPHICS -DVTK_USE_IMAGING \
			-DVTK_USE_PATENTED -DVTK_USE_CONTRIB 
GRAPHICS_FLAGS   =  -DVTK_USE_GLR -DVTK_USE_OGLR 

VTKDIR 		= /usr/vtk/vtk312/
VTK_FLAGS 	= ${VTK_CXX_FLAGS} ${TOOLKIT_FLAGS} ${GRAPHICS_FLAGS}
VTK_INCL 	= -I${VTKDIR}/common -I${VTKDIR}/graphics \
			-I${VTKDIR}/patented -I${VTKDIR}/imaging \
			-I${VTKDIR}/contrib

VTK_LDFLAG  	= -L$(VTKDIR)/lib 
VTK_LIBS	= -lVTKContrib -lVTKGraphics -lVTKPatented \
		  -lVTKImaging -lVTKCommon -lVTKGraphics 
#------------------------------------------------------------------------------
# user-editable GL - defines.
# Include path and libraries for Mesa.
# For SGI OpenGL: replace MesaGL with GL and MesaGLU with GLU.
GL_INCL	= -I/usr/include
GL_LDFLAG = -L/usr/X11R6/lib
GL_LIBS = -lMesaGL -lX11 -lXt -lXmu -lXext -lm -lstdc++

#------------------------------------------------------------------------------
# 

INCL   = -I../src $(QT_INCL) $(VTK_INCL) $(GL_INCL)

LFLAGS = -L../lib $(QT_LDFLAGS) $(VTK_LDFLAG) $(GL_LDFLAG)
LIBS   = $(QT_LIBS) $(VTK_LIBS) $(GL_LIBS)

###### Implicit rules

.SUFFIXES: .cpp .C

.cpp.o:
	$(CC) -c $(CFLAGS) $(VTK_FLAGS) $(INCL) -o $@ $<

.C.o:
	$(CC) -c $(CFLAGS) $(VTK_FLAGS) $(INCL) -o $@ $<

--------------18876D6F95D18176882A0BBC
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Content-Transfer-Encoding: 7bit
Content-Description: Card for Fabian Eilers
Content-Disposition: attachment;
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begin:vcard 
n:Eilers;Fabian
x-mozilla-html:FALSE
adr:;;An der Mauer 39/41;23552 Lübeck;Deutschland;;
version:2.1
email;internet:eilers@informatik.mu-luebeck.de
x-mozilla-cpt:;0
fn:Fabian Eilers
end:vcard

--------------18876D6F95D18176882A0BBC--



From kuebler@ira.uka.de  Mon Aug 13 14:03:13 2001
From: kuebler@ira.uka.de (Carsten =?iso-8859-1?Q?K=FCbler?=)
Date: Mon, 13 Aug 2001 15:03:13 +0200
Subject: [vtkusers] _CrtIsValidHeapPointer(pUserData)problem with vtkdll.dll
Message-ID: <3B77D011.535C6F74@ira.uka.de>

This is a multi-part message in MIME format.
--------------9A3FF28E1CAD2359E40D7946
Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: 7bit

Hej,

a few days ago I suggested a problem with M$ Windows and vtk (as dll)
(running into problems....QT VTK DLL). Now a few days later, I have a
comparable problem. The programm failed because of:

Debug Assertion Failed!
File: dbgheap.c
Line: 1044
Expression: _CrtIsValidHeapPointer(pUserData)

I would appreciate that this problem occures frequently, but I found
nothing in the mailarchive. The only way to solve this problem is, to
change the concept of vtk - all objects had to delete their allocated
memory (now it's distributed in the source).

The actual problem occures in our new class for multitexture support (we
use code from vtkopengltexture's Load() method). Trace the assigned
memory of the resultData variable....

Thanks to the existence of vtkCharArray I was able to write a class for
both problems


class vtkMemoryKruecke : private vtkCharArray
{
public:
 ...
 char *NewMemory(int size);
 void DeleteMemory(char *ptr);
...
}

// allocate memory out of the vtkdll.dll
char *vtkMemoryKruecke::NewMemory(int size)
{
 this->SaveUserArray=true;
 this->Allocate(size,0);
 char*tmp=this->Array;
 this->Array= NULL;
 this->Size=0;
 return tmp;
};

// delete memory in the vtkdll.dll
void vtkMemoryKruecke::DeleteMemory(char *ptr)
{
 this->SaveUserArray=false;
 this->Array=ptr;
 this->Initialize();
}

I think it's a diry hack, but I don't know how to solve the problem on a
better way.

Carsten

--------------9A3FF28E1CAD2359E40D7946
Content-Type: text/x-vcard; charset=us-ascii;
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Content-Transfer-Encoding: 7bit
Content-Description: Card for Carsten Kübler
Content-Disposition: attachment;
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begin:vcard 
n:Kuebler;Carsten
tel;fax:+49-721/608-7141
tel;work:+49-721/608-8934
x-mozilla-html:FALSE
url:http://wwwipr.ira.uka.de/~kuebler
org:University of Karlsruhe (TH);Department of Computer Science/Institute for Process Control and Robotics
version:2.1
email;internet:kuebler@ira.uka.de
adr;quoted-printable:;;Kaiserstr. 12=0D=0AGeb. 40.28;Karlsruhe;BW;76128;Germany
x-mozilla-cpt:;-21504
fn:Carsten Kübler
end:vcard

--------------9A3FF28E1CAD2359E40D7946--



From lyon@cs.queensu.ca  Mon Aug 13 20:26:29 2001
From: lyon@cs.queensu.ca (Jennifer Lyon)
Date: Mon, 13 Aug 2001 15:26:29 -0400
Subject: [vtkusers] Do you have a nice arrow?
Message-ID: <004a01c1242d$da6dc600$dc020f82@index>

Hi there,

We're looking for a VTKActor which is a simple arrow (perhaps a cone with a
cylinder attached?)

If someone has already created a nice one, perhaps we can make good use of
it too!

Thanks for any help!





From pushkare@students.uiuc.edu  Mon Aug 13 21:23:24 2001
From: pushkare@students.uiuc.edu (Gala'Vi and Liss @ Mainframe Country)
Date: Mon, 13 Aug 2001 15:23:24 -0500 (CDT)
Subject: [vtkusers] problem isosurfacing
Message-ID: 

Hello fellow VTK users,

I'm trying to compute an isosurface for a rather large rectilinear grid
dataset using vtkContourFilter. I have vtk3.1.2 on SGI IRIX 6.5.

Here's the code that I'm using to do this:

  CRead = vtkHDFReader::New();
  CRead->SetFileName("/nfs/zeus/lcadsk1/pushkare/imax4.qh06300.g03");
  CRead->SelectDataset(1);
  CRead->ForceUpdate();
  fprintf(stderr, "DATASETS:%d\n", CRead->GetNumDatasets());
  win = vtkRenderWindow::New();
  win->SetSize(400, 400);
  ren = vtkRenderer::New();
  win->AddRenderer(ren);

  vtkRenderWindowInteractor* iren = vtkRenderWindowInteractor::New();
  iren->SetRenderWindow(win);
  iren->SetUserMethod(UserMethod, 0);


  vtkRectilinearGrid* g =
(vtkRectilinearGrid*)CRead->GetOutput()->MakeObject();
  g->CopyStructure(CRead->GetOutput());
  g->GetPointData()->DeepCopy(CRead->GetOutput()->GetPointData());
  g->GetCellData()->DeepCopy(CRead->GetOutput()->GetCellData());
  g->Modified();
  vtkOutlineFilter* out = vtkOutlineFilter::New();
  out->SetInput(g);
  out->Update();
  vtkPolyDataMapper* outMap = vtkPolyDataMapper::New();
  outMap->SetInput(out->GetOutput());
  vtkActor* outActor = vtkActor::New();
  outActor->SetMapper(outMap);

  vtkContourFilter* cont1 = vtkContourFilter::New();
  cont1->SetInput(g);
  cont1->SetValue(0,0.0001);
  cont1->Update();


  The polydatamapper follows all this and all in all a pretty standard
VTK pipeline. I know for sure that the data is not corrupted. It reads
okay and I can get the dataset info without any problems. Having to copy
the grid, that's something I'm fixing right now, for some reason the
reader releases the data too early, but that's not the problem.
I've checked the memory maps, the program is not running out of memory.

When it's running, the maximum amount of memory it uses is about 100 Mb, I
have 256 to spare. Same thing happens on a machine with 512 Mb RAM (an
Origin 200)

The dataset is pretty big: 793800 points.

Here's the output from dbx when it crashes.

(dbx) where
>  0 vtkMergePoints::InsertUniquePoint(float*,int&)(this = 0x116a7200, x =
0x7fff2848, id = 0x7fff285c)
["/local/Develop/vtk31/common/vtkIdList.h":65, 0x1016ce38]
   1
vtkVoxel::Contour(float,vtkScalars*,vtkPointLocator*,vtkCellArray*,vtkCellArray*,vtkCellArray*,vtkPointData*,vtkPointData*,vtkCellData*,int,vtkCellData*)(this
= 0x116094e0, value = 9.9999997473787516e-05, cellScalars = 0x116a6950,
locator = 0x116a7200,  = 0x1165b7e8,  = 0x11674860,
polys = 0x1168d8d8, inPd = 0x11608f20, outPd = 0x1160e080, inCd =
0x11609000, cellId = 310813, outCd = 0x1160e160)
["/local/Develop/vtk31/common/vtkVoxel.cxx":366, 0x1034a8d4]
   2 vtkContourFilter::Execute(void)(this = 0x1160de90)
["/local/Develop/vtk31/graphics/vtkContourFilter.cxx":203, 0x101644c8]
   3 vtkSource::UpdateData(vtkDataObject*)(this = 0x1160de90,  =
0x1160df20) ["/local/Develop/vtk31/common/vtkSource.cxx":370, 0x10241ba4]
   4 vtkDataObject::UpdateData(void)(this = 0x1160df20)
["/local/Develop/vtk31/common/vtkDataObject.cxx":289, 0x1022b504]
   5 vtkDataObject::Update(void)(this = 0x1160df20)
["/local/Develop/vtk31/common/vtkDataObject.cxx":187, 0x1022af54]
   6 vtkSource::Update(void)(this = 0x1160de90)
["/local/Develop/vtk31/common/vtkSource.cxx":152, 0x10240fa8]
   7 ::main(argc = 1, argv = 0x7fff2f34)
["/local/LCATests/LCAVision2.0/LCAVision/LCATest.cxx":76, 0x100454a4]
   8 __start()
["/xlv55/kudzu-apr12/work/irix/lib/libc/libc_n32_M3/csu/crt1text.s":177,
0x10044d38]


This is a pretty standard code, I think. Is it possible that I'm running
against some kind of maximum array sizes or something? I'm just really
lost at this point.

TIA.

-- G. Wind.
NCSA, UIUC


//***********************************************
  -- There is always a way,
        you just have to find it.
              (B.Hambly "Children Of The Jedi")
//***********************************************



From sjrees@okstate.edu  Mon Aug 13 23:17:29 2001
From: sjrees@okstate.edu (Simon J. Rees)
Date: Mon, 13 Aug 2001 17:17:29 -0500
Subject: [vtkusers] Do you have a nice arrow?
References: <004a01c1242d$da6dc600$dc020f82@index>
Message-ID: <06e301c12445$bdf09ad0$b84f4e8b@mae.okstate.edu>

You can do exactly what you suggest by using vtkAppendPolyData to join a
cone and a cylinder. This can then be used as a source for vtkGlyph. If you
set the actor to have a wireframe representation you will get simple arrows.
A question like this was asked earlier in the year so you should find other
details by searching the archives.

Simon

----- Original Message -----
From: "Jennifer Lyon" 
To: 
Sent: Monday, August 13, 2001 2:26 PM
Subject: [vtkusers] Do you have a nice arrow?


> Hi there,
>
> We're looking for a VTKActor which is a simple arrow (perhaps a cone with
a
> cylinder attached?)
>
> If someone has already created a nice one, perhaps we can make good use of
> it too!
>
> Thanks for any help!
>
>
>
>
> _______________________________________________
> This is the private VTK discussion list.
> Please keep messages on-topic. Check the FAQ at:

> Follow this link to subscribe/unsubscribe:
> http://public.kitware.com/mailman/listinfo/vtkusers



From ahmedmm@gega.net  Mon Aug 13 23:52:21 2001
From: ahmedmm@gega.net (Ahmed Mahmoud)
Date: Tue, 14 Aug 2001 01:52:21 +0300
Subject: [vtkusers] 3D of human organs
Message-ID: <001501c1244a$9f7af5a0$6aa267d4@ahmed>

Hello all ,
I have 2D CT images , I made a 3d of the human colon with VTK , The 3D looks
fine .
My problem is when I move the camera inside the colon . I saw the triangles
strips very obviously
Is there a way to smooth these triangles .
Please , If any one worked with this problem . Give me an advise.
Thank you .

this my code to make a 3D file
/////////////////////////////
 vtkPNMReader *reader=vtkPNMReader::New();
  reader->GetOutput()-> GlobalReleaseDataFlagOn();

 vtkImageShrink3D *shrinker=vtkImageShrink3D::New();
  shrinker->SetInput (reader->GetOutput());

 vtkImageGaussianSmooth *gaussian=vtkImageGaussianSmooth::New();
  gaussian->SetInput (shrinker->GetOutput());
  gaussian->SetDimensionality(3);

 vtkImageToStructuredPoints *toStructuredPoints
  toStructuredPoints ->SetInput(gaussian ->GetOutput());
  toStructuredPoints ->Update ();
  toStructuredPoints ->GetOutput()->ReleaseDataFlagOn();

 vtkMarchingCubes *mcubes=vtkMarchingCubes::New();
  mcubes->SetInput(toStructuredPoints->GetOutput());
  mcubes->ComputeScalarsOff();
  mcubes->ComputeGradientsOff();
  mcubes->ComputeNormalsOff();
  mcubes->SetValue(0,3);
  mcubes->GetOutput()->ReleaseDataFlagOn();

 vtkDecimate *decimator=vtkDecimate::New();
  decimator->SetInput(mcubes->GetOutput());
  decimator->SetInitialFeatureAngle(DECIMATE_ANGLE);
  decimator->SetMaximumIterations(DECIMATE_ITERATIONS);
  decimator->SetMaximumSubIterations(0);
  decimator->PreserveEdgesOn();
  decimator->SetMaximumError(1);
  decimator->SetTargetReduction (DECIMATE_REDUCTION);
  decimator->SetInitialError (DECIMATE_ERROR);
  decimator->SetErrorIncrement(DECIMATE_ERROR_INCREMENT);
  decimator->GetOutput()->ReleaseDataFlagOn();

 vtkSmoothPolyDataFilter *smoother=vtkSmoothPolyDataFilter::New();
  smoother->SetInput(decimator->GetOutput());
  smoother->SetNumberOfIterations(SMOOTH_ITERATIONS);
  smoother->SetRelaxationFactor (SMOOTH_FACTOR);
  smoother->SetFeatureAngle (SMOOTH_ANGLE);
  smoother->FeatureEdgeSmoothingOff();
  smoother->BoundarySmoothingOff();
  smoother->SetConvergence(0);
  smoother->GetOutput()->ReleaseDataFlagOn();

 vtkPolyDataNormals *normals=vtkPolyDataNormals::New();
  normals->SetInput(smoother->GetOutput());
  normals->SetFeatureAngle (FEATURE_ANGLE);
  normals->GetOutput()->ReleaseDataFlagOn();

 vtkStripper *stripper=vtkStripper::New();
     stripper->SetInput(normals->GetOutput());
  stripper->GetOutput()->ReleaseDataFlagOn();

 ahmedmm@gega.net



From rayg@bu.edu  Tue Aug 14 01:44:00 2001
From: rayg@bu.edu (rayg@bu.edu)
Date: Mon, 13 Aug 2001 20:44:00 -0400
Subject: [vtkusers] Re: Animation of Datasets?
Message-ID: <200108140044.UAA155428@acsrs1.bu.edu>

Thank you Nigel for the responce. I am at SIGGRAPH this week but will look
at the Sample demo when I get back to Boston.


Thanks again

Ray Gasser


From P.Kiran@geind.ge.com  Tue Aug 14 04:46:08 2001
From: P.Kiran@geind.ge.com (Kiran, P (CORP, GEITC))
Date: Tue, 14 Aug 2001 09:16:08 +0530
Subject: [vtkusers] UnStructuredPoints to StructuredPoints
Message-ID: <2025E70FDF44D511918D00508B650D9401984BF9@ban03xbindge.geind.ge.com>

Hi all,

I have a set of UnStructuredPoints in the form of vtkPolyData.
Is there any method, by which I can convert these points to Structured
Points.

Thanks in advance for help.
-Kiran 


From B.Mannan@geind.ge.com  Tue Aug 14 07:20:46 2001
From: B.Mannan@geind.ge.com (Mannan, B (CORP, GEITC))
Date: Tue, 14 Aug 2001 11:50:46 +0530
Subject: [vtkusers] Looking for active contour algorithm on vtk
Message-ID: <2025E70FDF44D511918D00508B650D94019BCA11@ban03xbindge.geind.ge.com>

Hello all,
Is there any available methods of implementation of    active
contour(snakes) algorithm and/or level set methods  in vtk? I will be
grateful if someone can provide links to the implementation of these
algorithms in vtk. 

Thanks in advance for the help,
Mannan, B


From kamucha@hfm.e-technik.uni-kassel.de  Tue Aug 14 10:47:23 2001
From: kamucha@hfm.e-technik.uni-kassel.de (George Kamucha)
Date: Tue, 14 Aug 2001 11:47:23 +0200
Subject: [vtkusers] vtkQGL, editing source code required?
References: <200107121600.MAA24781@public.kitware.com> <3B7153CB.34817F49@hfm.e-technik.uni-kassel.de> <3B726D5B.3229CA04@student.mu-luebeck.de> <3B73F5D0.A608C28C@hfm.e-technik.uni-kassel.de> <3B77B46B.B952E2F1@informatik.mu-luebeck.de>
Message-ID: <3B78F3AB.C19D9A27@hfm.e-technik.uni-kassel.de>

Hi Fabian,
That was it, with qt 2.3.0 and vtk 3.1.2, the compilation of the vtkQGL_vtk31 was almost perfect! I had to add
-pthread -ldl in the GL_LIBS. Only one example, showSurface.cpp, didn't get compiled and it is to do with the
non-compatibility of the vtk version which Ehrhardt had used in writing the code. With a bit of optimization, I
will now be able to use the ideas from the code to develop my own GUI. I am very grateful to your invaluable
tips, thanks a lot!

Regards
George

Fabian Eilers wrote:

> Hi !!
>
> There is a failure in the "moc-compilation". Qt uses this for their SIGNAL-SLOT-Konzept.
> But I don't realize where...
>
> Which compiler do you use ? Try another. Perhaps it works.
>
> Try another qt-Version. I prefer qt 2.3.0, because you don't have the qgl-Library anymore.
> But take a look at the attachments.
>
> I have no other ideas. Sorry. It's "try and error".
>
> On a SGI you must have the right order:
> - the include pathes first -> I..../vtk312/common, then /graphics, then /imaging, then /contrib, then
> /patented
> - then the libraries in same order -> L..../vtk312/common -lVTKCommon, and so on...
>
> I sent the Makefile of my compilation as attachment. It works.
>
> Greetings
> Fabian
>
> George Kamucha wrote:
>
> > Hi Fabian,
> > I downloaded vtk 3.1.2, compiled it and that did part of the trick, the installation of the
> > vtkQGL31 sources was successful! But I have spent the last 26 hours or so trying to figure out why
> > the compilation fails in the examples' directory. I am at my wits' ends and please if you have an
> > idea about this error, please let me know, I will really appreciate. I am using qt 2.1.0 and I had
> > thought I had set all the paths properly but something is definitely not right. Here is one of the
> > the error messages I am getting:
> >
> > make[1]: Entering directory '/home/kamucha/vtkQGL31/examples'
> > g++ -o simpleTest simpleTest.o -L../lib -L/usr/lib/qt/lib -L/home/kamucha/vtk312unix/vtk31/../lib
> > -L/usr/X11R6/lib
> > -lVTKQGL -lqgl -lqt -lVTKContrib -lVTKGraphics -lVTKPatented -lVTKImaging -lVTKCommon -lVTKGraphics
> >
> > -lGL -lX11 -lXt -lXmu -lXext -lm -lstdc++
> > ../lib/libVTKQGL.a(moc_vtkQGLWidget.o): in function 'vtkQGLWidget::initMetaObject(void)':
> > moc_vtkQGLWidget.o(.text+0x1c): undefined reference to 'QGLWidget::className(void)const'
> > .........................................................................................................
>
>   ------------------------------------------------------------------------
>
> #
> CFLAGS = -g -fullwarn -woff 1681,1375
> #CFLAGS = -O2 -fullwarn -woff 1681,1375
> LIBCFLAGS =
> YACCCFLAGS = -woff 3262,3203
> LFLAGS =
> CC = CC
> SHELL = /bin/sh
>
> LIBPREFIX = lib
> LIBNAME = VTKQGL
> LIBSUFFIX = .a
>
> #------------------------------------------------------------------------------
> # user-editable QT - defines.
> QTDIR = /opt/local/qt-2.3.0
>
> MOC = $(QTDIR)/bin/moc
>
> QT_INCL    = -I$(QTDIR)/include
> QT_LDFLAGS = -L/opt/local/qt-2.3.0/lib
> QT_LIBS    = -lqt
>
> #------------------------------------------------------------------------------
> # user-editable VTK - defines.
>
> VTK_CXX_FLAGS   = -DVTK_WORDS_BIGENDIAN \
>                         -DVTK_USE_PTHREADS \
>                         -D_HP_NO_FAST_MACROS -DHAVE_LIMITS_H -DHAVE_UNISTD_H
> TOOLKIT_FLAGS    =  -DVTK_USE_GRAPHICS -DVTK_USE_IMAGING \
>                         -DVTK_USE_PATENTED -DVTK_USE_CONTRIB
> GRAPHICS_FLAGS   =  -DVTK_USE_GLR -DVTK_USE_OGLR
>
> VTKDIR          = /opt/local/vtk312
> VTK_FLAGS       = ${VTK_CXX_FLAGS} ${TOOLKIT_FLAGS} ${GRAPHICS_FLAGS}
> VTK_INCL        = -I${VTKDIR}/common -I${VTKDIR}/graphics \
>                         -I${VTKDIR}/patented -I${VTKDIR}/imaging \
>                         -I${VTKDIR}/contrib
>
> VTK_LDFLAG      = -L$(VTKDIR)/lib
> VTK_LIBS        = -lVTKContrib -lVTKGraphics -lVTKPatented \
>                   -lVTKImaging -lVTKCommon -lVTKGraphics
> #------------------------------------------------------------------------------
> # user-editable GL - defines.
> # Include path and libraries for Mesa.
> # For SGI OpenGL: replace MesaGL with GL and MesaGLU with GLU.
> GL_INCL = -I/usr/include
> GL_LDFLAG =
> GL_LIBS = -lGL -lX11 -lXt -lXmu -lXext -lm -lpthread
>
> #------------------------------------------------------------------------------
> #
>
> INCL   = -I../src $(QT_INCL) $(VTK_INCL) $(GL_INCL)
>
> LFLAGS = -L../lib $(QT_LDFLAGS) $(VTK_LDFLAG) $(GL_LDFLAG)
> LIBS   = $(QT_LIBS) $(VTK_LIBS) $(GL_LIBS)
> #-lgl
>
> ###### Implicit rules
>
> .SUFFIXES: .cpp .C
>
> .cpp.o:
>         $(CC) -c $(CFLAGS) $(VTK_FLAGS) $(INCL) -o $@ $<
>
> .C.o:
>         $(CC) -c $(CFLAGS) $(VTK_FLAGS) $(INCL) -o $@ $<
>
>   ------------------------------------------------------------------------
>
> #
> CFLAGS = -O2
> #LIBCFLAGS =
> #YACCCFLAGS =
> #LFLAGS =
> CC = g++
> SHELL = /bin/sh
>
> LIBPREFIX = lib
> LIBNAME = VTKQGL
> LIBSUFFIX = .a
>
> #------------------------------------------------------------------------------
> # user-editable QT - defines.
> QTDIR = /usr/lib/qt
>
> MOC = $(QTDIR)/bin/moc
>
> QT_INCL    = -I$(QTDIR)/include
> QT_LDFLAGS = -L/opt/qt/lib
> QT_LIBS    = -lqgl -lqt
>
> #------------------------------------------------------------------------------
> # user-editable VTK - defines.
>
> VTK_CXX_FLAGS   = -DVTK_WORDS_BIGENDIAN \
>                         -DVTK_USE_SPROC \
>                         -D_HP_NO_FAST_MACROS -DHAVE_LIMITS_H -DHAVE_UNISTD_H
> TOOLKIT_FLAGS    =  -DVTK_USE_GRAPHICS -DVTK_USE_IMAGING \
>                         -DVTK_USE_PATENTED -DVTK_USE_CONTRIB
> GRAPHICS_FLAGS   =  -DVTK_USE_GLR -DVTK_USE_OGLR
>
> VTKDIR          = /usr/vtk/vtk312/
> VTK_FLAGS       = ${VTK_CXX_FLAGS} ${TOOLKIT_FLAGS} ${GRAPHICS_FLAGS}
> VTK_INCL        = -I${VTKDIR}/common -I${VTKDIR}/graphics \
>                         -I${VTKDIR}/patented -I${VTKDIR}/imaging \
>                         -I${VTKDIR}/contrib
>
> VTK_LDFLAG      = -L$(VTKDIR)/lib
> VTK_LIBS        = -lVTKContrib -lVTKGraphics -lVTKPatented \
>                   -lVTKImaging -lVTKCommon -lVTKGraphics
> #------------------------------------------------------------------------------
> # user-editable GL - defines.
> # Include path and libraries for Mesa.
> # For SGI OpenGL: replace MesaGL with GL and MesaGLU with GLU.
> GL_INCL = -I/usr/include
> GL_LDFLAG = -L/usr/X11R6/lib
> GL_LIBS = -lMesaGL -lX11 -lXt -lXmu -lXext -lm -lstdc++
>
> #------------------------------------------------------------------------------
> #
>
> INCL   = -I../src $(QT_INCL) $(VTK_INCL) $(GL_INCL)
>
> LFLAGS = -L../lib $(QT_LDFLAGS) $(VTK_LDFLAG) $(GL_LDFLAG)
> LIBS   = $(QT_LIBS) $(VTK_LIBS) $(GL_LIBS)
>
> ###### Implicit rules
>
> .SUFFIXES: .cpp .C
>
> .cpp.o:
>         $(CC) -c $(CFLAGS) $(VTK_FLAGS) $(INCL) -o $@ $<
>
> .C.o:
>         $(CC) -c $(CFLAGS) $(VTK_FLAGS) $(INCL) -o $@ $<

--
=======================================
George Kamucha
Fachgebiet Hochfrequenztechnik(FB 16),
Universität Kassel,
Wilhelmshöher Allee 73,
Kassel, Germany.
__________________________________________________________________________
Phone : +49 -561-804 6509 (Office); +49 -561-870 5662 (Resi.)
Fax   : +49 -561-804 6529 (Office)
URL   : http://www.uni-kassel.de/fb16/hft/mitarbeiter/kamucha/kamucha.html
__________________________________________________________________________




From marcelo@cci.fmrp.usp.br  Tue Aug 14 13:04:50 2001
From: marcelo@cci.fmrp.usp.br (Marcelo Costa Oliveira)
Date: Tue, 14 Aug 2001 09:04:50 -0300
Subject: [vtkusers] Vusialize an unstruct grid
Message-ID: <3B7913E2.7090803@cci.fmrp.usp.br>

Hi, users

First, sorry my english, i'm from Brazil.

How is the best way to reconstruct and visualize an unstruct grid 
stack.  I made this unstruct grid using vtkExtractGeometry.

Tanks for advanced.

Marcelo



From neculai.archip@memot.unibe.ch  Tue Aug 14 14:44:21 2001
From: neculai.archip@memot.unibe.ch (Neculai Archip)
Date: Tue, 14 Aug 2001 15:44:21 +0200
Subject: [vtkusers] mesh generation for volume visualization
Message-ID: <3B792B35.84212493@memot.unibe.ch>

  Hello,

I'm a beginner  in using vtk; I intend to use it for mesh generation in
volume visualization of medical data, by the use of the Delaunay 3D;
Having the contours in parallel slices, I want to generate the
tetrahedral meshes.
The problem I have with the objects I want to visualize, is the presence
of multiple contours in slice. Do you know if Delaunay algorithm
implemented in vtk can deal with this situations?

Also I would appreciate if someone could point me to a sample written in
C++, of Delaunay3D.

thanks in advance,
Nicu



From karshi.hasanov@utoronto.ca  Tue Aug 14 14:53:46 2001
From: karshi.hasanov@utoronto.ca (Karshi Hasanov)
Date: Tue, 14 Aug 2001 09:53:46 -0400
Subject: [vtkusers] VTK_BSD
Message-ID: <01081409534601.01081@cr322577-a>

Hi

I am trying to install VTK on FreeBSD and getting the following errors:
-----------------------------------------------------------------------
/usr/lib/crt1.o: In function `_start':
/usr/lib/crt1.o(.text+0x79): undefined reference to `main'
*** Error code 1

Stop in /home/khasanov/Python/vtk/common.
*** Error code 1

Stop in /home/khasanov/Python/vtk.
----------------------------------------------------------
Can you tell me what I'm doing wrong here?
Thanks


From josephwinston@mac.com  Tue Aug 14 14:59:37 2001
From: josephwinston@mac.com (Jody Winston)
Date: Tue, 14 Aug 2001 08:59:37 -0500
Subject: [vtkusers] OOVrml or email contact for Thomas D. Citriniti
Message-ID: <15225.11977.328119.610949@frank.xprtcc.com>

I'm trying to download OOVrml-0.9.tar.gz from Thomas D. Citriniti's
web page, but ecse.rpi.edu is not accepting ftp connections.  Does
anyone have a copy (a newer copy is fine also) of OOVrml-0.9.tar.gz?
Or does someone have his email address so that I can ask him for the
software?

Jody



From citrit@rpi.edu  Tue Aug 14 15:54:46 2001
From: citrit@rpi.edu (Tom Citriniti)
Date: Tue, 14 Aug 2001 10:54:46 -0400
Subject: [vtkusers] OOVrml or email contact for Thomas D. Citriniti
References: <15225.11977.328119.610949@frank.xprtcc.com>
Message-ID: <004c01c124d1$0f1f0320$0c021dc7@winston>

OOVrml was based on the VRML 1.0 spec and is outdated. There is a
vtkVRMLImporter class available in the contrib directory of Vtk. Please use
this one since it is compliant with the latest VRML spec.

Tom Citriniti

----- Original Message -----
From: "Jody Winston" 
To: 
Sent: Tuesday, August 14, 2001 9:59 AM
Subject: [vtkusers] OOVrml or email contact for Thomas D. Citriniti


> I'm trying to download OOVrml-0.9.tar.gz from Thomas D. Citriniti's
> web page, but ecse.rpi.edu is not accepting ftp connections.  Does
> anyone have a copy (a newer copy is fine also) of OOVrml-0.9.tar.gz?
> Or does someone have his email address so that I can ask him for the
> software?
>
> Jody
>
>
> _______________________________________________
> This is the private VTK discussion list.
> Please keep messages on-topic. Check the FAQ at:

> Follow this link to subscribe/unsubscribe:
> http://public.kitware.com/mailman/listinfo/vtkusers
>



From ming@ca.wai.com  Tue Aug 14 18:52:28 2001
From: ming@ca.wai.com (Ming Xie)
Date: Tue, 14 Aug 2001 10:52:28 -0700
Subject: [vtkusers] 3D text under parallel projection
Message-ID: 

Hi All,

I use vtkVectorText and vtkFollower to display 3d labels so that they always
face the viewer. This works fine under perspective projection. When I set
the camera projection to parallel, however, the labels appear backwards
(rotated 180 degrees about the vertical axis). Anybody knows how to fix the
problem?

Thanks,

Ming
Weidlinger Associates, Inc



From lisa.avila@kitware.com  Tue Aug 14 21:28:40 2001
From: lisa.avila@kitware.com (Lisa S. Avila)
Date: Tue, 14 Aug 2001 16:28:40 -0400
Subject: [vtkusers] VolumeRayCastMapper changes
In-Reply-To: 
Message-ID: <5.0.0.25.0.20010814161714.01c2ca00@pop.nycap.rr.com>

Hello,

I am in the process of changing the vtkVolumeRayCastMapper, and I have a 
question for the group - is anyone out there using the RayBounder? I know 
Bill Lorensen uses it in several examples where volumes and surfaces are 
intermixed. Is anyone else using it? If not, I would like to consider 
removing this functionality from the vtkVolumeRayCastMapper.

Here are the advantages to removing it:

1) This will make the different rendering strategies more interchangeable 
(ray bounding is not supported for the vtkVolumeTextureMapper2D or the 
vtkVolumeProMapper)

2) This will simplify the ray casting code

3) This will eliminate the problems that occur because the ray bounder 
depends on OpenGL storing a Z value in the depth buffer and being able to 
correctly read the depth buffer. Many PC video cards / drivers have 
problems with at least one of those requirements and hence ray bounding 
fails on those platforms.

Here are the disadvantages:

1) The functionality will no longer be there.


Obviously the advantages outweigh the disadvantages if no one is using the 
ray bounder :-) so that is why I am gathering feedback now. Also, if the 
only reason people are using the raybounder is to, for example, render only 
in a sphere-of-interest that functionality can be replaced by something 
other than the ray bounder.


Thanks!

Lisa



From a.maclean@acfr.usyd.edu.au  Wed Aug 15 02:14:25 2001
From: a.maclean@acfr.usyd.edu.au (Andrew J. P. Maclean)
Date: Wed, 15 Aug 2001 11:14:25 +1000
Subject: [vtkusers] vtkScalarBarActor -  how to set it's range.
Message-ID: <001201c12527$9fdd0960$84d24e81@acfr.usyd.edu.au>

This is a multi-part message in MIME format.

------=_NextPart_000_0013_01C1257B.718AA000
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	charset="us-ascii"
Content-Transfer-Encoding: 7bit

Does the scalar bar actor only have a range of 0 to 1? Whatever I do, I
can only get a range of 0 to 1. In contrast if I use vtkAxes, the
dimensions of the object are reflected correctly. Why does vtkaxes work
in the expected fashion and the Scalar Bar actor doesn't? I am using
vtkElevationFilter and then feeding the scalar range from this into the
lookup table (it always seems to range from 0 to 1). So I guess it is
something to do with the filtering at this stage. I want the scalar bar
to reflect the colours of a height map on the surface.
 
I looked for examples and found MultidimensionalSolution.tcl,
PropPicker.tcl and ScalarBar.tcl, however all of these render a scalar
bar with a range of 0 to 1. 
 
Thanks
   Andrew

___________________________________________
Andrew J. P. Maclean


Postal:
Australian Centre for Field Robotics
The Rose Street Building J04
The University of Sydney  2006  NSW
AUSTRALIA

Room:
106

Phone:
+61 2 9351 3283

Fax:
+61 2 9351 7474

 
  http://www.acfr.usyd.edu.au/
___________________________________________
 

------=_NextPart_000_0013_01C1257B.718AA000
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	charset="us-ascii"
Content-Transfer-Encoding: quoted-printable



























Does the scalar bar =
actor
only have a range of 0 to 1? Whatever I do, I can only get a range of 0 =
to 1.
In contrast if I use vtkAxes, the dimensions =
of the
object are reflected correctly. Why does vtkaxes work
in the expected fashion and the Scalar Bar actor doesn’t? I am =
using vtkElevationFilter and then feeding the scalar =
range from
this into the lookup table (it always seems to range from 0 to 1). So I =
guess
it is something to do with the filtering at this stage. I want the =
scalar bar
to reflect the colours of a height map on the =
surface.



 



I looked for =
examples and
found MultidimensionalSolution.tcl, PropPicker.tcl and ScalarBar.tcl, however all of these render a scalar bar with a =
range of 0
to 1. 



 



Thanks



   =
Andrew



___________________________________________

Andrew J. P. =
Maclean



 

  
  
Postal:

  		
  
  
Australia=
n
  Centre for Field Robotics

  The Rose Street Building J04

  The Universit=
y of Sydney  2006  NSW

  AUSTRALIA=


  		
 

 

  
  
Room:

  		
  
  
106<=
/o:p>

  		
 

 

  
  
Phone:

  		
  
  
+61 2 =
9351 3283

  		
 

 

  
  
Fax:=


  		
  
  
+61 2 =
9351 7474

  		
 

 

  
  
&nbs=
p;

  		
  
  
http://www.acfr.usyd.edu.a=
u/

  		
 





=
___________________________________________



 









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From johnyao@students.uiuc.edu  Wed Aug 15 06:13:13 2001
From: johnyao@students.uiuc.edu (John Yao)
Date: Wed, 15 Aug 2001 00:13:13 -0500
Subject: [vtkusers] applet on web
Message-ID: <001c01c12548$fc19b220$2f4c7e82@cee.uiuc.edu>

This is a multi-part message in MIME format.

------=_NextPart_000_0019_01C1251F.132B4020
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	charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable

Hello,

I am a new user of vtk and I am wondering if someone has tried to put an =
applet (for example, the applet that comes with the vtk java support) =
that downloads the vtk.jar to the user side and uses the library.  I =
tried to do that and java console gave me =
ava.security.AccessControlException.  Please give me some comments if =
anyone has tried this.

thanks,
john

------=_NextPart_000_0019_01C1251F.132B4020
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	charset="iso-8859-1"
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Hello,


 


I am a new user of vtk and I am =
wondering if=20
someone has tried to put an applet (for example, the applet that comes =
with the=20
vtk java support) that downloads the vtk.jar to the user side =
and uses=20
the library.  I tried to do that and java console gave me=20
ava.security.AccessControlException.  Please give me some comments =
if=20
anyone has tried this.


 


thanks,


john


------=_NextPart_000_0019_01C1251F.132B4020--



From jshalf@lbl.gov  Wed Aug 15 06:42:20 2001
From: jshalf@lbl.gov (John Shalf)
Date: Tue, 14 Aug 2001 22:42:20 -0700
Subject: [vtkusers] applet on web
References: <001c01c12548$fc19b220$2f4c7e82@cee.uiuc.edu>
Message-ID: <3B7A0BBC.CAD46028@lbl.gov>

Can't do that with JNI (Java Native Interface).  vtk.jar
simply contains wrappers that allow you to call the VTK*.so
files on your machine using the Java JNI.  However, the
sandbox that applets run in doesn't allow you to access
these shared libraries on the remote machine.  You can relax
the Java security/sandbox requirements by creating a signed
Java application with a different security policy, but that
would require the users download the VTK*.so libraries as
well as a lot of mucking with your client side JVM (not
exactly a smooth or scalable process).

You might take a look at Randy Heiland's work on VisBench
	http://visbench.ncsa.uiuc.edu/  	
	http://www.ncsa.uiuc.edu/People/heiland/
He's right there a couple of buildings away from you. 
Randy's app gets around the sticky issue of the fact that
VTK is not 100% pure Java by executing the core VTK routines
on the server side using remote methods.  The Java/jpython
front-end GUI can potentially run in your browser and talks
to the VTK back-end on the server side through a CORBA
interface.

-john

> John Yao wrote:
> 
> Hello,
> 
> I am a new user of vtk and I am wondering if someone has
> tried to put an applet (for example, the applet that comes
> with the vtk java support) that downloads the vtk.jar to
> the user side and uses the library.  I tried to do that
> and java console gave me
> ava.security.AccessControlException.  Please give me some
> comments if anyone has tried this.
> 
> thanks,
> john


From amy.henderson@kitware.com  Wed Aug 15 13:45:35 2001
From: amy.henderson@kitware.com (Amy Henderson)
Date: Wed, 15 Aug 2001 08:45:35 -0400
Subject: [vtkusers] vtkScalarBarActor -  how to set it's range.
In-Reply-To: <001201c12527$9fdd0960$84d24e81@acfr.usyd.edu.au>
Message-ID: <4.3.2.7.2.20010815084343.01f551a0@pop.nycap.rr.com>

--=====================_170396587==_.ALT
Content-Type: text/plain; charset="us-ascii"; format=flowed

The vtkScalarBarActor is not limited to the range 0 to 1.  Did you set the 
ScalarRange of vtkElevationFilter?  It defaults to the range 0 to 1, so if 
you didn't set it to something else, that would explain the range of your 
scalar bar actor.

- Amy

At 11:14 AM 8/15/2001 +1000, Andrew J. P. Maclean wrote:

>Does the scalar bar actor only have a range of 0 to 1? Whatever I do, I 
>can only get a range of 0 to 1. In contrast if I use vtkAxes, the 
>dimensions of the object are reflected correctly. Why does vtkaxes work in 
>the expected fashion and the Scalar Bar actor doesn t? I am using 
>vtkElevationFilter and then feeding the scalar range from this into the 
>lookup table (it always seems to range from 0 to 1). So I guess it is 
>something to do with the filtering at this stage. I want the scalar bar to 
>reflect the colours of a height map on the surface.
>
>
>
>I looked for examples and found MultidimensionalSolution.tcl, 
>PropPicker.tcl and ScalarBar.tcl, however all of these render a scalar bar 
>with a range of 0 to 1.
>
>
>
>Thanks
>
>    Andrew
>
>
>___________________________________________
>Andrew J. P. Maclean
>
>
>
>Postal:
>
>Australian Centre for Field Robotics
>The Rose Street Building J04
>The University of Sydney  2006  NSW
>AUSTRALIA
>
>Room:
>
>106
>
>Phone:
>
>+61 2 9351 3283
>
>Fax:
>
>+61 2 9351 7474
>
>
>
>http://www.acfr.usyd.edu.au/
>
>___________________________________________
>
>

--=====================_170396587==_.ALT
Content-Type: text/html; charset="us-ascii"


The vtkScalarBarActor is not limited to the range 0 to 1.  Did you
set the ScalarRange of vtkElevationFilter?  It defaults to the range
0 to 1, so if you didn't set it to something else, that would explain the
range of your scalar bar actor.



- Amy



At 11:14 AM 8/15/2001 +1000, Andrew J. P. Maclean wrote:




Does the scalar bar
actor only have a range of 0 to 1? Whatever I do, I can only get a range
of 0 to 1. In contrast if I use vtkAxes, the dimensions of the object are
reflected correctly. Why does vtkaxes work in the expected fashion and
the Scalar Bar actor doesn t? I am using vtkElevationFilter and then
feeding the scalar range from this into the lookup table (it always seems
to range from 0 to 1). So I guess it is something to do with the
filtering at this stage. I want the scalar bar to reflect the colours of
a height map on the surface.



 



I looked for examples and found
MultidimensionalSolution.tcl, PropPicker.tcl and ScalarBar.tcl, however
all of these render a scalar bar with a range of 0 to 1. 



 



Thanks



   Andrew




___________________________________________

Andrew J. P. Maclean




Postal:



Australian Centre for Field Robotics

The Rose Street Building J04

The University of Sydney  2006  NSW

AUSTRALIA



Room:



106



Phone:



+61 2 9351 3283



Fax:



+61 2 9351 7474



 



http://www.acfr.usyd.edu.au/



___________________________________________



 


--=====================_170396587==_.ALT--



From jclopez@andrew.cmu.edu  Wed Aug 15 16:14:45 2001
From: jclopez@andrew.cmu.edu (Julio Lopez)
Date: Wed, 15 Aug 2001 11:14:45 -0400
Subject: [vtkusers] mesh generation for volume visualization
In-Reply-To: <3B792B35.84212493@memot.unibe.ch>
Message-ID: 

This might be useful 

http://www.cs.cmu.edu/~quake/triangle.html

I know the quake project also has a 3D version somewhere around.
Most of their earthquake simulations use tetrahedral meshes.

-- Julio

> -----Original Message-----
> From: vtkusers-admin@public.kitware.com
> [mailto:vtkusers-admin@public.kitware.com]On Behalf Of Neculai Archip
> Sent: Tuesday, August 14, 2001 9:44 AM
> To: vtkusers@public.kitware.com
> Subject: [vtkusers] mesh generation for volume visualization
> 
> 
>   Hello,
> 
> I'm a beginner  in using vtk; I intend to use it for mesh generation in
> volume visualization of medical data, by the use of the Delaunay 3D;
> Having the contours in parallel slices, I want to generate the
> tetrahedral meshes.
> The problem I have with the objects I want to visualize, is the presence
> of multiple contours in slice. Do you know if Delaunay algorithm
> implemented in vtk can deal with this situations?
> 
> Also I would appreciate if someone could point me to a sample written in
> C++, of Delaunay3D.
> 
> thanks in advance,
> Nicu
> 
> 
> _______________________________________________
> This is the private VTK discussion list. 
> Please keep messages on-topic. Check the FAQ at: 
> 
> Follow this link to subscribe/unsubscribe:
> http://public.kitware.com/mailman/listinfo/vtkusers
> 


From krueger@techinfo.rwth-aachen.de  Wed Aug 15 16:38:27 2001
From: krueger@techinfo.rwth-aachen.de (Thomas Krueger)
Date: Wed, 15 Aug 2001 17:38:27 +0200
Subject: [vtkusers] vtk and Java (vtkPanel)
Message-ID: <3B7A9773.99C4984C@techinfo.rwth-aachen.de>

Hi,
I just tested a Java-VTK-application with the vtkNightly of 18/7/01 (including a
new vtkPanel in addition to the old one) and jdk1.3.1. The application works
fine if I use the old vtkPanel, but the use of the new Panel fails: the panel
remains black.

How can I use the new vtkPanel with the jdk 1.3.1 and how can I use vtk with jdk
1.4 (the old vtkPanel cannot be used with 1.4)?

Tom


From lcwerner@uswest.net  Wed Aug 15 17:17:44 2001
From: lcwerner@uswest.net (Renny Werner)
Date: Wed, 15 Aug 2001 10:17:44 -0600
Subject: [vtkusers] Question about text and vtk
Message-ID: 

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My question is if there is a way to scale the size of the text that you
display rather than just by the location of the actor in the rendering
window.

I am currently using vtk to render buildings in 3D and have been placing an
axis to depict compass directions.  I draw an axis and place N,S,E,W at the
end of them so when I rotate/zoom around I can still keep my bearings as to
what direction I am looking from.  Now the text displays fine and by using
vtkFollower as an actor for them, they are always facing the camera and all
that works fine.

The problem is when I zoom in, the text gets larger until it has a tendency
to restrict ones viewing of the building.  So, is there a way that I can set
the size of the text so that as I zoom in, it remains the same size on the
screen.  I am currently using vtkVectorText and have tried using
vtkTextSource as well.

In an ideal world, when I zoom in from the north side of the building, the
"N" would stay in the foreground and remain the same size.

Is there any way to do this?  I have done a cursory look at the source for
vtkVectorText and don't see anything that implies this is possible, hence
the reason for this email.  Maybe some of you vtk gurus have a neat little
trick up your sleeve that you can enlighten me with.

Sorry if this is hard to follow, my writing skills have really deteriorated
since the advent of email.

Thanks in advance...

Lawrence "Renny" Werner

PS -> Oh, and I am using vtk with C++, not tcl or python.  This brings up
another question.  I can't seem to get that wish82 application to work on
any of the tcl samples.  When I try and read in the source I get a whole
series of errors like "unable to find/include file vtkInt.tcl" or "invalid
comman name "vtkRenderer"" or any of the vtk objects.  What am I doing
wrong?  Sorry to throw this question in at the last minute... *grin*



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BEGIN:VCARD
VERSION:2.1
N:Werner;Lawrence;"Renny"
FN:Lawrence "Renny" Werner
ORG:RenAissance Software Development
TITLE:Software Developer
NOTE;ENCODING=3DQUOTED-PRINTABLE:Renny.Werner@doe2.com=3D0D=3D0A=3D0D=3D0=
A
TEL;WORK;VOICE:(303) 697-7656
ADR;WORK:;;20324 North Turkey Creek Road,;Morrison;CO;80465;United =
States of America
LABEL;WORK;ENCODING=3DQUOTED-PRINTABLE:20324 North Turkey Creek =
Road,=3D0D=3D0AMorrison, CO 80465=3D0D=3D0AUnited States of=3D
 America
EMAIL;PREF;INTERNET:Renny.Werner@doe2.com
REV:20010329T184551Z
END:VCARD

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From GALBJA@inel.gov  Wed Aug 15 18:23:24 2001
From: GALBJA@inel.gov (James A Galbraith/GALBJA/CC01/INEEL/US)
Date: Wed, 15 Aug 2001 11:23:24 -0600
Subject: [vtkusers] WorldToDisplay coordinate conversion
Message-ID: 

I guess I'm a little confused as too what vtkRenderer->WorldToDisplay() is
supposed to do.  I hope someone can show me the light.

I have some terrain I have rendered in vtk.  I am taking the world
coordinates of one of the corners (which is really close to the upper left
hand corner of the window) and trying to convert it to actual display
coordinates.  My window size is returned as 483x383.  The Display
coordinates I get back from WorldToDisplay is something like 251, 178,
1.99.  When I pan around and actually move the corner in question out of
the window and do another WorldToDisplay, I get the same coordinates back.
A similar thing happens when I zoom in (using Camera->dolly), except the z
value changes minutely.  If I rotate this thing about 90 degrees about the
x axis I get something like 233, -5624, 1.99.  Is WorldToDisplay supposed
to give me actual window/screen coordinates or is it returning something
else.

My terrain is rendered in actual world coordinates and my camera has been
rotated around and positioned directly above the area of terrain rendered.
In the case I am describing, the terrain in question is on the back side of
the world, so the camera is rotated around 127 and up 36 degrees.

I would like something that would give me the actual screen/window
coordinates of a given world coordinate, or some indication of whether the
point is outside the window.

I Hope someone can straighten me out.  I am running Windowz NT 4.0 using
the Java bindings.

Thanks

James Galbraith
galbja@inel.gov



From pushkare@students.uiuc.edu  Wed Aug 15 20:39:16 2001
From: pushkare@students.uiuc.edu (Gala'Vi and Liss @ Mainframe Country)
Date: Wed, 15 Aug 2001 14:39:16 -0500 (CDT)
Subject: [vtkusers] problem isosurfacing
In-Reply-To: 
Message-ID: 

I changed to VTK 3.2 and still the same thing. It got further than before,
but still crashed. Still pretty much same thing:

(dbx) where
>  0 vtkIdList::GetNumberOfIds(void)(this = 0x89)
["/scratch/Develop/vtk3.2/common/vtkIdList.h":65, 0x10236a90]
   1 vtkMergePoints::InsertUniquePoint(const float*,int&)(this =
0x15868370, x = 0x7fff28d8, id = 0x7fff28ec)
["/scratch/Develop/vtk3.2/graphics/vtkMergePoints.cxx":156, 0x1023a6e8]
   2
vtkVoxel::Contour(float,vtkScalars*,vtkPointLocator*,vtkCellArray*,vtkCellArray*,vtkCellArray*,vtkPointData*,vtkPointData*,vtkCellData*,int,vtkCellData*)(this
= 0x13f96688, value = 9.9999997473787516e-05, cellScalars = 0x15867ac0,
locator = 0x15868370,  = 0x1581c958,  = 0x158359d0,
polys = 0x1584ea48, inPd = 0x13f960a8, outPd = 0x157d15b0, inCd =
0x13f96198, cellId = 452980, outCd = 0x157d16a0)
["/scratch/Develop/vtk3.2/common/vtkVoxel.cxx":372, 0x104bb144]
   3 vtkContourFilter::Execute(void)(this = 0x157d1358)
["/scratch/Develop/vtk3.2/graphics/vtkContourFilter.cxx":232, 0x1021f304]
   4 vtkSource::UpdateData(vtkDataObject*)(this = 0x157d1358,  =
0x157d13e0) ["/scratch/Develop/vtk3.2/common/vtkSource.cxx":387,
0x103d9754]
   5 vtkDataObject::UpdateData(void)(this = 0x157d13e0)
["/scratch/Develop/vtk3.2/common/vtkDataObject.cxx":322, 0x103c74a0]
   6 vtkDataObject::Update(void)(this = 0x157d13e0)
["/scratch/Develop/vtk3.2/common/vtkDataObject.cxx":214, 0x103c6fc4]
   7 vtkSource::Update(void)(this = 0x157d1358)
["/scratch/Develop/vtk3.2/common/vtkSource.cxx":158, 0x103d8ae8]
   8 ::main(argc = 1, argv = 0x7fff2f54)
["/scratch/LCATests/LCAVision2.0/LCAVision/LCATest.cxx":76, 0x10056374]
   9 __start()
["/xlv55/kudzu-apr12/work/irix/lib/libc/libc_n32_M3/csu/crt1text.s":177,
0x10055af8]

-- G. Wind


//***********************************************
  -- There is always a way,
        you just have to find it.
              (B.Hambly "Children Of The Jedi")
//***********************************************

On Mon, 13 Aug 2001, Berk Geveci wrote:

> This might be a bug in VTK. To make sure it is not something which was not
> already
> fixed, you should get the VTK cvs tree (check the VTK webpage for
> instructions)
> and test your program with libraries built from that.
>
> Berk
>
>
>
> _________________________________________________________________
> Get your FREE download of MSN Explorer at http://explorer.msn.com/intl.asp
>



From pushkare@students.uiuc.edu  Wed Aug 15 21:12:02 2001
From: pushkare@students.uiuc.edu (Gala'Vi and Liss @ Mainframe Country)
Date: Wed, 15 Aug 2001 15:12:02 -0500 (CDT)
Subject: [vtkusers] problem isosurfacing, A VTK bug?
In-Reply-To: 
Message-ID: 

What's really bothering me about that coredump from dbx, is that on the
very first line:

 0 vtkIdList::GetNumberOfIds(void)(this = 0x89)
["/scratch/Develop/vtk3.2/common/vtkIdList.h":65, 0x10237440]

The pointer value is 0x89 which I think is way too low! I'm running on an
Origin 200 in mips3 mode (32-bit addressing, R10K x 2, 1Gb RAM), same
thing happens on my good old Onyx (32-bit addressing, R4400 x 4, 256Mb
RAM). Operating system IRIX6.5.5 on both. The code that's triggering this
is in vtkMergePoints.cxx:

  if (bucket) // see whether we've got duplicate point
    {
    //
    // Check the list of points in that bucket.
    //
    int ptId;
    float *pt;
    int NumberOfIds = bucket->GetNumberOfIds (); <---- Line 158

It's like the bucket pointer is whacked out. I'm going to try to see
what's going on, but any help would be greatly appreciated. I'll try to
update VTK again and recompile. So far I'm pretty lost.

-- Gala
NCSA, UIUC

//***********************************************
  -- There is always a way,
        you just have to find it.
              (B.Hambly "Children Of The Jedi")
//***********************************************




From ienadjak@midway.uchicago.edu  Wed Aug 15 23:15:04 2001
From: ienadjak@midway.uchicago.edu (irena emilova nadjakova)
Date: Wed, 15 Aug 2001 17:15:04 -0500 (CDT)
Subject: [vtkusers] help with parallel isosurfacing
Message-ID: 

Hello all,

I have a problem with isosurfacing unstructured grid data on parallel
processes. My pipeline is set up as:

unstructured grid -> vtkContourFilter -> vtkDecimatePro (all processes)
	-> vtkOutput/Input ports
	(process 0) -> vtkAppendPolyData

The app runs fine unless the isosurface doesn't spacially pass though the
data on one of the processes; that is, one process has a chunk of data
which does not generate an isosurface.

The ouput from running the app is:

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

...

ERROR: In vtkDecimatePro.cxx, line 185
vtkDecimatePro (0x81c0970): No data to decimate!

Program received signal SIGSEGV, Segmentation fault.
0x4125bb76 in vtkAttributeData::GetData ()
   from ../vtk3.2/lib/libVTKCommon.so

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

I suppose this is because vtkDecimatePro's Execute() call receives 0
points from vtkContourFilter and so returns without creating vtkPoints for
its output (from the debugger : just before the return,
this->GetOutput->GetPoints() is (nil) ).

Later, vtkDecimatePro's output is vtkAppendPolyData's input and the
vtkAppendPolyData Execute() call tries to access those points (which are
NULL) in
  inPts = ((vtkPolyData *)(this->Inputs[0]))->GetPoints();
  ^^^^^
  newPts = vtkPoints::New(inPts->GetData()->GetDataType());
                          ^^^^^

Does that sound right? Can anybody suggest a solution?

Thanks!
-Irena






From matthews@softtech.co.nz  Wed Aug 15 23:51:57 2001
From: matthews@softtech.co.nz (Matthew Sherborne)
Date: Thu, 16 Aug 2001 10:51:57 +1200
Subject: [vtkusers] Python 2.1 thingy
Message-ID: <003401c125dc$e400b910$0816a8c0@matthew>

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Hi all

Is there a VTK  to Python2.1 interface?

I only found 1.5 :(

Thanks :)

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Hi all


 


Is there a VTK  to Python2.1=20
interface?


 


I only found 1.5 :(


 


Thanks :)


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From dgobbi@irus.rri.ca  Thu Aug 16 00:12:54 2001
From: dgobbi@irus.rri.ca (David Gobbi)
Date: Wed, 15 Aug 2001 19:12:54 -0400 (EDT)
Subject: [vtkusers] Python 2.1 thingy
In-Reply-To: <003401c125dc$e400b910$0816a8c0@matthew>
Message-ID: 

VTK will work with any version of python, but you will have to
re-compile VTK.  This is straightforward on a UNIX system,
but on Windows you must do a little bit of tweaking.

On Windows, VTK has a batch of tcl/tk internal headers in the
pcmaker/xlib directory.  After you replace these with ones from
the tcl/tk 8.3 source, you will be able to build VTK with
Python 2.1.  You might also be able to simply point pcmaker.exe
at the tcl/tk 8.3 source code, but I haven't tried.

The VTK pre-4.0 Windows installer will provide a Python 2.1
interface, until then re-compilation is probably your only
option.

 - David

--
  David Gobbi, MSc                       dgobbi@irus.rri.ca
  Advanced Imaging Research Group
  Robarts Research Institute, University of Western Ontario

On Thu, 16 Aug 2001, Matthew Sherborne wrote:

> Hi all
>
> Is there a VTK  to Python2.1 interface?
>
> I only found 1.5 :(
>
> Thanks:)
>



From a.maclean@acfr.usyd.edu.au  Thu Aug 16 00:19:50 2001
From: a.maclean@acfr.usyd.edu.au (Andrew J. P. Maclean)
Date: Thu, 16 Aug 2001 09:19:50 +1000
Subject: [vtkusers] vtkScalarBarActor -  how to set it's range.
In-Reply-To: <4.3.2.7.2.20010815084343.01f551a0@pop.nycap.rr.com>
Message-ID: <002601c125e0$c80901a0$84d24e81@acfr.usyd.edu.au>

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Many thanks to Amy. It now works perfectly.
 

___________________________________________
Andrew J. P. Maclean


Postal:
Australian Centre for Field Robotics
The Rose Street Building J04
The University of Sydney  2006  NSW
AUSTRALIA

Room:
106

Phone:
+61 2 9351 3283

Fax:
+61 2 9351 7474

 
  http://www.acfr.usyd.edu.au/
___________________________________________
 
-----Original Message-----
From: Amy Henderson [mailto:amy.henderson@kitware.com] 
Sent: Wednesday, 15 August 2001 22:46
To: a.maclean@acfr.usyd.edu.au; vtkusers@public.kitware.com
Subject: Re: [vtkusers] vtkScalarBarActor - how to set it's range.
 
The vtkScalarBarActor is not limited to the range 0 to 1.  Did you set
the ScalarRange of vtkElevationFilter?  It defaults to the range 0 to 1,
so if you didn't set it to something else, that would explain the range
of your scalar bar actor.

- Amy

At 11:14 AM 8/15/2001 +1000, Andrew J. P. Maclean wrote:



Does the scalar bar actor only have a range of 0 to 1? Whatever I do, I
can only get a range of 0 to 1. In contrast if I use vtkAxes, the
dimensions of the object are reflected correctly. Why does vtkaxes work
in the expected fashion and the Scalar Bar actor doesn t? I am using
vtkElevationFilter and then feeding the scalar range from this into the
lookup table (it always seems to range from 0 to 1). So I guess it is
something to do with the filtering at this stage. I want the scalar bar
to reflect the colours of a height map on the surface.

 

I looked for examples and found MultidimensionalSolution.tcl,
PropPicker.tcl and ScalarBar.tcl, however all of these render a scalar
bar with a range of 0 to 1. 

 

Thanks

   Andrew

___________________________________________
Andrew J. P. Maclean



Postal:

Australian Centre for Field Robotics
The Rose Street Building J04
The University of Sydney  2006  NSW
AUSTRALIA

Room:

106

Phone:

+61 2 9351 3283

Fax:

+61 2 9351 7474

 

http://www.acfr.usyd.edu.au/

___________________________________________

 

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Many
thanks to Amy.
It now works perfectly.



 =
;






_____________________________________=
______

Andrew J. P. =
Maclean=








 

  
  
Postal:=


  		
  
  
Australian
  Centre for Field Robotics

  The Rose Street Building J04

  The University of Sydney  2006  NSW

  AUSTRALIA=


  		
 

 

  
  
Room:=


  		
  
  
106=


  		
 

 

  
  
Phone:=


  		
  
  
+61
  2 9351 3283

  		
 

 

  
  
Fax:=


  		
  
  
+61
  2 9351 7474

  		
 

 

  
  
 

  		
  
  
http://www.acfr.usyd.edu.a=
u/=


  		
 





________________________=
___________________



 =
;



-----Original =
Message-----

From: Amy Henderson
[mailto:amy.henderson@kitware.com] 

Sent: =
Wednesday, 15 August =
2001 22:46

To: =
a.maclean@acfr.usyd.edu.au;
vtkusers@public.kitware.com

Subject: Re: [vtkusers] =
vtkScalarBarActor
- how to set it's range.



 



The =
vtkScalarBarActor is
not limited to the range 0 to 1.  Did you set the ScalarRange of =
vtkElevationFilter? 
It defaults to the range 0 to 1, so if you didn't set it to something =
else,
that would explain the range of your scalar bar actor.



- Amy



At 11:14 AM =
8/15/2001 +1000, Andrew =
J. P. Maclean
wrote:









Does the scalar bar actor only have a range of 0 to =
1?
Whatever I do, I can only get a range of 0 to 1. In contrast if I use =
vtkAxes,
the dimensions of the object are reflected correctly. Why does vtkaxes =
work in
the expected fashion and the Scalar Bar actor doesn t? I am using
vtkElevationFilter and then feeding the scalar range from this into the =
lookup
table (it always seems to range from 0 to 1). So I guess it is something =
to do
with the filtering at this stage. I want the scalar bar to reflect the =
colours
of a height map on the surface.



 



I
looked for examples and found MultidimensionalSolution.tcl, =
PropPicker.tcl and
ScalarBar.tcl, however all of these render a scalar bar with a range of =
0 to 1.




 



Thanks



  
Andrew



____________=
_______________________________

Andrew J. P. Maclean







Postal:



Australian
Centre for Field Robotics

The Rose Street Building J04

The University of =
Sydney 
2006  NSW

AUSTRALIA



Room:



106



Phone:



+61
2 9351 3283



Fax:



+61
2 9351 7474



 



http://www.acfr.usyd.edu.au/


_____________________=
______________________



 









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From schaffer@optonline.net  Thu Aug 16 00:28:26 2001
From: schaffer@optonline.net (Les Schaffer)
Date: Wed, 15 Aug 2001 19:28:26 -0400
Subject: [vtkusers] Python 2.1 thingy
In-Reply-To: <003401c125dc$e400b910$0816a8c0@matthew>
References: <003401c125dc$e400b910$0816a8c0@matthew>
Message-ID: <15227.1434.359000.530301@gargle.gargle.HOWL>

> is there a VTK  to Python2.1 interface?

  http://basic.astrian.net/godzilla/

has precompiled vtk dlls good for python2.1 thingies.

les schaffer



From dgobbi@irus.rri.ca  Thu Aug 16 00:35:54 2001
From: dgobbi@irus.rri.ca (David Gobbi)
Date: Wed, 15 Aug 2001 19:35:54 -0400 (EDT)
Subject: [vtkusers] Python 2.1 thingy
In-Reply-To: <15227.1434.359000.530301@gargle.gargle.HOWL>
Message-ID: 

Hi Les,

I'd forgotten about your pre-compiled packages!  Your page is one
of my regular stops for python-netcdf.  I wonder if any one is
interested in writing netcdf reader/writer classes for VTK?  Right
now I'm reading the netcdf files into python, and then exporting
them to VTK.

 - David


On Wed, 15 Aug 2001, Les Schaffer wrote:

> > is there a VTK  to Python2.1 interface?
>
>   http://basic.astrian.net/godzilla/
>
> has precompiled vtk dlls good for python2.1 thingies.
>
> les schaffer
>
>
> _______________________________________________
> This is the private VTK discussion list.
> Please keep messages on-topic. Check the FAQ at: 
> Follow this link to subscribe/unsubscribe:
> http://public.kitware.com/mailman/listinfo/vtkusers
>



From schaffer@optonline.net  Thu Aug 16 01:04:37 2001
From: schaffer@optonline.net (Les Schaffer)
Date: Wed, 15 Aug 2001 20:04:37 -0400
Subject: [vtkusers] Python 2.1 thingy
In-Reply-To: 
References: <15227.1434.359000.530301@gargle.gargle.HOWL>
 
Message-ID: <15227.3605.562000.750752@gargle.gargle.HOWL>

David Gobbi said:

> I'd forgotten about your pre-compiled packages!  

i last compiled them from the nightly build some time in early may. if
someone could let me know when a good time to re-compile with latest
code base, i'd be much appreciative.

les schaffer



From ben.held@staarinc.com  Thu Aug 16 17:46:05 2001
From: ben.held@staarinc.com (Ben Held)
Date: Thu, 16 Aug 2001 11:46:05 -0500
Subject: [vtkusers] How to use vtkProgrammableFilter in Java
Message-ID: 

Hello,

I need to make use of vtkProgrammableFilter in my java application.  There
are not any examples of how to set the execute function to a Java function.
I need to know the function signatures and how to call SetExecuteMethod...

Thanks,
Ben

Ben L. Held
Simulation Technology & Applied Research, Inc.
11520 N. Port Washington Rd.
Suite 101B
Mequon, WI  53092
Phone: (262) 240-0291 x101
FAX: (262) 240-0294
e-mail: ben.held@staarinc.com
web: http://www.staarinc.com




From krw@viz-solutions.com  Thu Aug 16 21:10:58 2001
From: krw@viz-solutions.com (Kevin Wright)
Date: Thu, 16 Aug 2001 13:10:58 -0700
Subject: [vtkusers] Renderer clipped in render window
Message-ID: <3B7C28D1.639FCF79@viz-solutions.com>

Hi all,

I was hoping somebody could point me in the right direction on this.  I
have a RenderWindow built within a vtkTkRenderWidget object.  In it I
have a single renderer.  About one time in three when I start my
program, the bottom 10th (approx) of the renderer is clipped (shows just
black, no 2D or 3D drawing occurs).  If I grab the window and shrink it
down, the clipped area goes away.  If I make the window bigger, the
clipped area gets bigger (the point where clipping occurs is at the same
place in the window relative to the top.  I can't figure out any pattern
as to when it will happen and when it won't.

Any help at all is appreciated.

Kevin.



From ben.held@staarinc.com  Thu Aug 16 22:31:36 2001
From: ben.held@staarinc.com (Ben Held)
Date: Thu, 16 Aug 2001 16:31:36 -0500
Subject: [vtkusers] How to use vtkProgrammableFilter in Java
In-Reply-To: <3B7C16FF.D6EB2FB3@cdnorthamerica.com>
Message-ID: 

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Jeff,

Thanks for the help.  However, one thing that I forgot to mention is that I
need to use the programmable filter to change the type of the data from
vtkUnstructuredGrid to vtkPolyData.  Is this possible?  It appears that the
programmable filter sets the output type to match the input type - is there
a way to overload this or something?

Thanks,

Ben
  -----Original Message-----
  From: jal@megadodo.segNET.COM [mailto:jal@megadodo.segNET.COM]On Behalf Of
J.A. Lee
  Sent: Thursday, August 16, 2001 1:55 PM
  To: Ben Held
  Subject: Re: [vtkusers] How to use vtkProgrammableFilter in Java


  Ben,
  Presumably:
  vtkProgrammableFilter pFilt = new vtkProgrammableFilter();
  pFilt.SetInput(source.GetOutput()); // mabey source is output of another
filter?
  pFilt.SetExecuteMethod(new FilterMethod(), "execute");

  public class FilterMethod
  {
      public FilterMethod() {}

      public void execute() {

          vtkPolyData input = pFilt.GetPolyDataInput();
          // do some stuff like calculate new scalars?
          int numPts = input.GetNumberOfPoints();

          vtkScalars newScalars = new vtkScalars();

          for (int i = 0; i < numPts; ++i) {
              newScalars.InsertScalar(i, 2*i);
          }

          pFilt.GetPolyDataOutput().CopyStructure(input);
          pFilt.GetPolyDataOutput().GetPointData().SetScalars(newScalars);
          newScalars = null;
      }
  }

  Mabey you forgot the copy from input to output?
  -Jeff




  Ben Held wrote:

    Any idea how to setup up the output for the programmable filter?  A call
to progfilter.GetOutput or progfilter.GetPolyDataOutput returns a null.
Calling progfilter.SetOutput(new vtkPolyData()) seems to work, but my output
isn't rendered (I see nothing).Ben
      -----Original Message-----
      From: jal@megadodo.segNET.COM [mailto:jal@megadodo.segNET.COM]On
Behalf Of J.A. Lee
      Sent: Thursday, August 16, 2001 12:32 PM
      To: Ben Held
      Subject: Re: [vtkusers] How to use vtkProgrammableFilter in Java
      Ben,
      filt.SetExecuteMethod(new MyExecuteMethod(), "execute");

          public class MyExecuteMethod {

              public MyExecuteMethod(){ }

              public void execute(){
                  doStuff()....
              }
          }


      Ben Held wrote:

        Hello,
        I need to make use of vtkProgrammableFilter in my java application.
There
        are not any examples of how to set the execute function to a Java
function.
        I need to know the function signatures and how to call
SetExecuteMethod...

        Thanks,
        Ben

        Ben L. Held
        Simulation Technology & Applied Research, Inc.
        11520 N. Port Washington Rd.
        Suite 101B
        Mequon, WI  53092
        Phone: (262) 240-0291 x101
        FAX: (262) 240-0294
        e-mail: ben.held@staarinc.com
        web: http://www.staarinc.com

        _______________________________________________
        This is the private VTK discussion list.
        Please keep messages on-topic. Check the FAQ at:

        Follow this link to subscribe/unsubscribe:
        http://public.kitware.com/mailman/listinfo/vtkusers

--
J.A. Lee
Software Engineer
Computational Dynamics North America
3 Schoolhouse Lane
Etna NH, 03750
ph: 603-643-9993 x109, fax: 603-643-9994

--
J.A. Lee
Software Engineer
Computational Dynamics North America
3 Schoolhouse Lane
Etna NH, 03750
ph: 603-643-9993 x109, fax: 603-643-9994


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Jeff,


 


Thanks=20
for the help.  However, one thing that I forgot to mention is that =
I need=20
to use the programmable filter to change the type of the data from=20
vtkUnstructuredGrid to vtkPolyData.  Is this possible?  It =
appears=20
that the programmable filter sets the output type to match the input =
type - is=20
there a way to overload this or something?


 


Thanks,


 


Ben



  
-----Original Message-----
From: =
jal@megadodo.segNET.COM=20
  [mailto:jal@megadodo.segNET.COM]On Behalf Of J.A. =
Lee
Sent:=20
  Thursday, August 16, 2001 1:55 PM
To: Ben =
Held
Subject:=20
  Re: [vtkusers] How to use vtkProgrammableFilter in=20
  Java

Ben, 
Presumably: =

vtkProgrammableFilter pFilt=20
  =3D new vtkProgrammableFilter(); =

pFilt.SetInput(source.GetOutput()); //=20
  mabey source is output of another filter? =

pFilt.SetExecuteMethod(new=20
  FilterMethod(), "execute"); 
 =20
  
public class FilterMethod 
{ 
    public=20
  FilterMethod() {}=20
  
    public void execute() {=20
  
        vtkPolyData input =3D=20
  pFilt.GetPolyDataInput(); =

        // do=20
  some stuff like calculate new scalars?=20
  
        int numPts =3D=20
  input.GetNumberOfPoints();=20
  
        vtkScalars newScalars =
=3D new=20
  vtkScalars();=20
  
        for (int i =3D 0; i < =
numPts;=20
  ++i) { =

           =20
  newScalars.InsertScalar(i, 2*i);=20
  
        }=20
  
       =20
  pFilt.GetPolyDataOutput().CopyStructure(input);=20
  
       =20
  pFilt.GetPolyDataOutput().GetPointData().SetScalars(newScalars);=20
  
        newScalars =3D null;=20
  
    } 
}=20
  
Mabey you forgot the copy from input to output? 
-Jeff =

 =20
  
  
 =20
  
Ben Held wrote:=20
  
Any idea how to =
setup up the=20
    output for the programmable filter?  A call to =
progfilter.GetOutput or=20
    progfilter.GetPolyDataOutput returns a null.  Calling=20
    progfilter.SetOutput(new vtkPolyData()) seems to work, but my output =
isn't=20
    rendered (I see nothing).Ben=20
    

      
-----Original Message----- 
From: jal@megadodo.segNET.COM =
[mailto:jal@megadodo.segNET.COM]On=20
      Behalf Of J.A. Lee 
Sent: Thursday, August 16, 2001 12:32 =
PM=20
      
To: Ben =
Held=20
      
Subject: Re: =
[vtkusers] How to=20
      use vtkProgrammableFilter in Java
Ben,=20
      
filt.SetExecuteMethod(new MyExecuteMethod(), "execute");=20
      
    public class MyExecuteMethod {=20
      
        public =
MyExecuteMethod(){ }=20
      
        public void =
execute(){=20
      =

           =20
      doStuff().... 
        }=20
      
    } 
 =20
      
Ben Held wrote:=20
      
Hello,=20
        
I need to make use of vtkProgrammableFilter in my java=20
        application.  There 
are not any examples of how to set =
the=20
        execute function to a Java function. 
I need to know the =
function=20
        signatures and how to call SetExecuteMethod...=20
        
Thanks, 
Ben=20
        
Ben L. Held 
Simulation Technology & Applied Research, =
Inc.=20
        
11520 N. Port Washington Rd. 
Suite 101B 
Mequon, =
WI =20
        53092 
Phone: (262) 240-0291 x101 
FAX: (262) 240-0294 =

e-mail:=20
        ben.held@staarinc.com 
web: http://www.staarinc.com=20
        
_______________________________________________ 
This is =
the=20
        private VTK discussion list. 
Please keep messages on-topic. =
Check=20
        the FAQ at: <http://public.kitware.c=
om/cgi-bin/vtkfaq>=20
        
Follow this link to subscribe/unsubscribe: 
http://publi=
c.kitware.com/mailman/listinfo/vtkusers
-- =

J.A. Lee
Software Engineer
Computational Dynamics North America
3 Schoolhouse Lane
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ph: 603-643-9993 x109, fax: =
603-643-9994
 
-- 
J.A. Lee
Software Engineer
Computational Dynamics North America
3 Schoolhouse Lane
Etna NH, 03750
ph: 603-643-9993 x109, fax: 603-643-9994
  =



------=_NextPart_000_0027_01C12670.EAE7D8A0--



From odonnell@ai.mit.edu  Thu Aug 16 19:53:12 2001
From: odonnell@ai.mit.edu (Lauren O'Donnell)
Date: Thu, 16 Aug 2001 14:53:12 -0400 (EDT)
Subject: [vtkusers] volume rendering >1 component data
Message-ID: 

Hi all,

I am trying out volume rendering of some characteristics of DT-MRI data,
and volume rendering (in vtk3.2) only is supported for 1 scalar component.  
So I wrote a subclass of vtkVolumeRayCastCompositeFunction to render RGBA
data by grabbing the image components rather than using lookup tables.

This is a quick solution but I can't handle shading this way, and I have a
few questions.  First, has anyone done something like this?  

Second, is there any way to "trick" the existing classes into computing
the gradient/normal information using one of the components of my data as
the scalar input?  Perhaps setting the active scalar component?

And third, is the gradient and normal information computed always? Or can
I turn it off if I don't use it?

If anyone knows a better way to go about this, please let me know.

Lauren




From dgobbi@irus.rri.ca  Fri Aug 17 00:30:44 2001
From: dgobbi@irus.rri.ca (David Gobbi)
Date: Thu, 16 Aug 2001 19:30:44 -0400 (EDT)
Subject: [vtkusers] volume rendering >1 component data
In-Reply-To: 
Message-ID: 

On Thu, 16 Aug 2001, Lauren O'Donnell wrote:

> Hi all,

> I am trying out volume rendering of some characteristics of DT-MRI data,
> and volume rendering (in vtk3.2) only is supported for 1 scalar component.
> So I wrote a subclass of vtkVolumeRayCastCompositeFunction to render RGBA
> data by grabbing the image components rather than using lookup tables.

This makes a lot of sense.

> Second, is there any way to "trick" the existing classes into computing
> the gradient/normal information using one of the components of my data as
> the scalar input?  Perhaps setting the active scalar component?

Why not just change your class so that it calculates gradients/normals
from your alpha component?  I don't think it would make sense to
use the R,G, or B components.

> If anyone knows a better way to go about this, please let me know.

So far it sounds like you're heading in the right direction.
The ability to load RGB data would also be very nice for the
vtkVolumeTexture classes.

 - David



From paul.welton@sympatico.ca  Fri Aug 17 02:58:00 2001
From: paul.welton@sympatico.ca (Paul Welton)
Date: Thu, 16 Aug 2001 21:58:00 -0400
Subject: [vtkusers] Problems trying to run the VTK RPMs
Message-ID: <3B7C7A28.616703D6@sympatico.ca>

I have Red Hat 7.0 and installed the VTK RPMs from the boxed CD,
thinking that this would be the easiest way to go ... but:

[root@localhost /root]# vtk
vtk: error while loading shared libraries:
/usr/lib/libVTKGraphicsTcl.so: undefined symbol: tkMainWindowList

Anyone know how to fix this?

[root@localhost /root]# which vtk
/usr/bin/vtk
[root@localhost /root]# ls -rlt /usr/bin/vtk
-rwxr-xr-x    1 root     root         5280 Jan 23  2001 /usr/bin/vtk
[root@localhost /root]# echo $LD_LIBRARY_PATH
/usr/lib
[root@localhost /root]# echo $SHLIB_PATH
/usr/lib
[root@localhost /root]# ls -rlt /usr/lib/libVTK*
-rwxr-xr-x    1 root     root       795440 Jan 23  2001
/usr/lib/libVTKCommonTcl.so
-rwxr-xr-x    1 root     root      1986076 Jan 23  2001
/usr/lib/libVTKCommon.so
-rwxr-xr-x    1 root     root       163224 Jan 23  2001
/usr/lib/libVTKPatentedTcl.so
-rwxr-xr-x    1 root     root      1026328 Jan 23  2001
/usr/lib/libVTKPatented.so
-rwxr-xr-x    1 root     root       894096 Jan 23  2001
/usr/lib/libVTKImagingTcl.so
-rwxr-xr-x    1 root     root      4101688 Jan 23  2001
/usr/lib/libVTKImaging.so
-rwxr-xr-x    1 root     root      2476752 Jan 23  2001
/usr/lib/libVTKGraphicsTcl.so
-rwxr-xr-x    1 root     root      7321656 Jan 23  2001
/usr/lib/libVTKGraphics.so
-rwxr-xr-x    1 root     root       392976 Jan 23  2001
/usr/lib/libVTKContribTcl.so
-rwxr-xr-x    1 root     root      1842460 Jan 23  2001
/usr/lib/libVTKContrib.so

I could not find tkMainWindowList in the source code for Tk, but did
find it in the VTK source file
"graphics/vtkXRenderWindowTclInteractor.cxx".



From dgobbi@irus.rri.ca  Fri Aug 17 03:20:13 2001
From: dgobbi@irus.rri.ca (David Gobbi)
Date: Thu, 16 Aug 2001 22:20:13 -0400 (EDT)
Subject: [vtkusers] Problems trying to run the VTK RPMs
In-Reply-To: <3B7C7A28.616703D6@sympatico.ca>
Message-ID: 

Hi Paul,

More than likely, the VTK RPMs were built with an older version
of tcl/tk, i.e. they were meant for a RedHat 6.2 system.

>nm libtk8.3.so | grep tkMainWindowList

but when I go to another machine that has tcl/tk 8.0:

>nm libtk8.0.so | grep tkMainWindowList
[832]   |1610516756|       4|OBJT |GLOB |DEFAULT  |MIPS_DATA|tkMainWindowList

You can try a quick-and-dirty install of the rpm for tcl/tk 8.0
(via rpm -i --oldpackage) but the safest route would be to recompile
VTK on your system.  If you do, the best compiler to use is 2.95.3,
I don't have complete confidence in RedHat's 2.96 compiler or in the
newer 3.0 compiler.

 - David

--
  David Gobbi, MSc                       dgobbi@irus.rri.ca
  Advanced Imaging Research Group
  Robarts Research Institute, University of Western Ontario

On Thu, 16 Aug 2001, Paul Welton wrote:

> I have Red Hat 7.0 and installed the VTK RPMs from the boxed CD,
> thinking that this would be the easiest way to go ... but:
>
> [root@localhost /root]# vtk
> vtk: error while loading shared libraries:
> /usr/lib/libVTKGraphicsTcl.so: undefined symbol: tkMainWindowList
>
> Anyone know how to fix this?
>
> [root@localhost /root]# which vtk
> /usr/bin/vtk
> [root@localhost /root]# ls -rlt /usr/bin/vtk
> -rwxr-xr-x    1 root     root         5280 Jan 23  2001 /usr/bin/vtk
> [root@localhost /root]# echo $LD_LIBRARY_PATH
> /usr/lib
> [root@localhost /root]# echo $SHLIB_PATH
> /usr/lib
> [root@localhost /root]# ls -rlt /usr/lib/libVTK*
> -rwxr-xr-x    1 root     root       795440 Jan 23  2001
> /usr/lib/libVTKCommonTcl.so
> -rwxr-xr-x    1 root     root      1986076 Jan 23  2001
> /usr/lib/libVTKCommon.so
> -rwxr-xr-x    1 root     root       163224 Jan 23  2001
> /usr/lib/libVTKPatentedTcl.so
> -rwxr-xr-x    1 root     root      1026328 Jan 23  2001
> /usr/lib/libVTKPatented.so
> -rwxr-xr-x    1 root     root       894096 Jan 23  2001
> /usr/lib/libVTKImagingTcl.so
> -rwxr-xr-x    1 root     root      4101688 Jan 23  2001
> /usr/lib/libVTKImaging.so
> -rwxr-xr-x    1 root     root      2476752 Jan 23  2001
> /usr/lib/libVTKGraphicsTcl.so
> -rwxr-xr-x    1 root     root      7321656 Jan 23  2001
> /usr/lib/libVTKGraphics.so
> -rwxr-xr-x    1 root     root       392976 Jan 23  2001
> /usr/lib/libVTKContribTcl.so
> -rwxr-xr-x    1 root     root      1842460 Jan 23  2001
> /usr/lib/libVTKContrib.so
>
> I could not find tkMainWindowList in the source code for Tk, but did
> find it in the VTK source file
> "graphics/vtkXRenderWindowTclInteractor.cxx".
>
>
> _______________________________________________
> This is the private VTK discussion list.
> Please keep messages on-topic. Check the FAQ at: 
> Follow this link to subscribe/unsubscribe:
> http://public.kitware.com/mailman/listinfo/vtkusers
>



From faulhaber@ipf.uni-karlsruhe.de  Fri Aug 17 08:28:48 2001
From: faulhaber@ipf.uni-karlsruhe.de (Karin Faulhaber)
Date: Fri, 17 Aug 2001 09:28:48 +0200
Subject: [vtkusers] How to use vtkProgrammableFilter in Java
References: 
Message-ID: <3B7CC7B0.97CD1CD8@ipf.uni-karlsruhe.de>

Hi Ben,

> I need to make use of vtkProgrammableFilter in my java application.  There
> are not any examples of how to set the execute function to a Java function.
> I need to know the function signatures and how to call SetExecuteMethod...


Try this:

fProgGlyph = new vtkProgrammableGlyphFilter();
fProgGlyph.SetInput(...);
fProgGlyph.SetSource(...);
fProgGlyph.SetGlyphMethod(this, "calcGlyph");

---

public void calcGlyph() {
...
}


As far as I can see, you can't have any parameters with the GylphMethod.
And the GlyphMethod needs to be public.

Karin

-- 
Karin Faulhaber
Universitaet Karlsruhe
Institut fuer Photogrammetrie und Fernerkundung (IPF)
Englerstr. 7 
76128 Karlsruhe

Tel: 0721/608-3676
E-Mail: faulhaber@ipf.uni-karlsruhe.de


From michael.winckler@iwr.uni-heidelberg.de  Fri Aug 17 14:06:38 2001
From: michael.winckler@iwr.uni-heidelberg.de (Michael J. Winckler)
Date: Fri, 17 Aug 2001 15:06:38 +0200
Subject: [vtkusers] experience with VTK and PC?
Message-ID: 

Hi list members,


our institute facilities are based mainly on SGI machines (rom O2 to
Origin 200 to Reality Engine 2). Now we consider extending to Linux-
based PCs in the graphics department two. As we run VTK (and other
visualization software), we would be glad for some user experience 
about "graphics power in day-to-day applications". 

Questions:

1. nVidia seems to be the graphics chipset to use. GForce3 looks
   like it is not good enough to make the cut (considering price
   and performance). Is GForce2 Ultra or Quattro2 Pro the better
   choice? 

   Key applications include *lots* of triangles in some cases, 
   2D-texture mapping on selected (larger) polygons in other 
   areas.

2. Is Mesa plus XFree performing well or do we need to buy an XServer
   plus OpenGL? Is there a "professional" OpenGL for Linux still on
   the market?

Any help would be greatly appreciated. Personal views and impressions
are grteat. If you think, this is too off-topic, mail to me dircetly
(although I am pretty sure information on this point would be valuable
to all VTK users.


           Michael

--

 \\\   Dr. Michael J. Winckler  Michael.Winckler@iwr.uni-heidelberg.de
 ( o>     http://www.iwr.uni-heidelberg.de/%7EMichael.Winckler/ 
 /U )            "If swimming is so good for your figure, 
--oo--                how come whales look the way they do?"






From pushkare@students.uiuc.edu  Fri Aug 17 17:22:11 2001
From: pushkare@students.uiuc.edu (Gala'Vi and Liss @ Mainframe Country)
Date: Fri, 17 Aug 2001 11:22:11 -0500 (CDT)
Subject: [vtkusers] experience with VTK and PC?
In-Reply-To: 
Message-ID: 

I'm one of the authors of a cross-platform visualization system written
completely in VTK. We've been supporting Linux for quite a while (a few
years), so been there done that.

On Fri, 17 Aug 2001, Michael J. Winckler wrote:

>
> Hi list members,
>
>
> our institute facilities are based mainly on SGI machines (rom O2 to
> Origin 200 to Reality Engine 2). Now we consider extending to Linux-
> based PCs in the graphics department two. As we run VTK (and other
> visualization software), we would be glad for some user experience
> about "graphics power in day-to-day applications".
>
> Questions:
>
> 1. nVidia seems to be the graphics chipset to use. GForce3 looks
>    like it is not good enough to make the cut (considering price
>    and performance). Is GForce2 Ultra or Quattro2 Pro the better
>    choice?
>
>    Key applications include *lots* of triangles in some cases,
>    2D-texture mapping on selected (larger) polygons in other
>    areas.

I've been running with GForce2 Ultra and had a great time. Runs a lot
faster than the RE2 that I have on my Onyx. Haven't had much experience
with GForce3, but knowing how long it takes to get a stable driver for
Linux, I say don't bother with GForce3 and go with GForce2



>
> 2. Is Mesa plus XFree performing well or do we need to buy an XServer
>    plus OpenGL? Is there a "professional" OpenGL for Linux still on
>    the market?
>

Mesa is a software rendering library, so it's noticeably slower than
OpenGL. In my experience using OpenGL + XFree86 worked great. You don't
need to buy XServer, or whatever that is. Actually Mandrake7.2 and Redhat
7.0 are already just about optimally set up for running VTK. I mean, we've
been doing it for a while and no real painful problems.

-- Gala Wind
NCSA, UIUC


> Any help would be greatly appreciated. Personal views and impressions
> are grteat. If you think, this is too off-topic, mail to me dircetly
> (although I am pretty sure information on this point would be valuable
> to all VTK users.
>
>
>            Michael
>
> --
>
>  \\\   Dr. Michael J. Winckler  Michael.Winckler@iwr.uni-heidelberg.de
>  ( o>     http://www.iwr.uni-heidelberg.de/%7EMichael.Winckler/
>  /U )            "If swimming is so good for your figure,
> --oo--                how come whales look the way they do?"
>
>
>
>
>
> _______________________________________________
> This is the private VTK discussion list.
> Please keep messages on-topic. Check the FAQ at: 
> Follow this link to subscribe/unsubscribe:
> http://public.kitware.com/mailman/listinfo/vtkusers
>



From tedyvtk@gogo.com.br  Fri Aug 17 17:36:01 2001
From: tedyvtk@gogo.com.br (Tedy Marcos Colombini)
Date: 17 Aug 2001 16:36:01 -0000
Subject: [vtkusers] Get boundary tethahedrons from an unstructured grid
Message-ID: <20010817163601.21650.qmail@gogo.com.br>





Hi!





I'd like to get the edge tetrahedrons from a model (those that have vertex, edges or faces in the model's outer surface), and the sub-cell ID that is laid down on the outer surface. How can I do this??





Thanks in advance,





Tedy Marcos Colombini





 








e-communication ... gogo.com.br              



From D.Duke@bath.ac.uk  Fri Aug 17 17:05:44 2001
From: D.Duke@bath.ac.uk (David Duke)
Date: Fri, 17 Aug 2001 18:05:44 +0200
Subject: [vtkusers] Using ProgrammableSource with new dataset types
Message-ID: <5.0.2.1.2.20010817174822.00a27ba0@pophost.bath.ac.uk>

Hi,

I've been working with graphs (as in sets of nodes and edges), represented 
in the pipeline as vtkPolyData objects.  I can read graph data from a file 
using vtkProgrammableSource, and that works fine.  However, I've created a 
subtype of PolyData to provide higher-level interfaces and graph 
operations.  What I'd *like* to do is continue to use the 
ProgrammableSource callback with a Tcl procedure, but with the new object 
type, along these lines:

vtkProgrammableSource reader
   reader SetExecuteMethod readGraph

proc readGraph {} {
   vtkGraph theGraph
   # read and initialise the graph structure
   # ....

   reader SetPolyDataOutput theGraph
}

This makes sense in my context, as downstream modules that know about 
graphs can downcast, and modules that work on PolyData can treat the graph 
as PolyData.

The problem is that vtkProgrammableSource doesn't provide "Set...Output" 
methods.  So you are limited to working with the basic dataset types that 
it supports via its "Get...Output" interface.   Of course it is easy to 
make a subtype of ProgrammableSource and implement the appropriate method, 
but it seemed like the kind of thing that you might want the Programmable 
modules to support.  I wondered if anyone had a better suggestion, or had 
encountered a similar problem.

thanks,
David



----
Dr David Duke                   Department of Computer Science
                                 University of Bath, Bath, BA2 7AY
tel:    +44 1225 323 407        United Kingdom
fax     +44 1225 323 493
email:  D.Duke@bath.ac.uk       web:   http://www.bath.ac.uk/~masdad/



From laytonjb@bellsouth.net  Fri Aug 17 21:01:37 2001
From: laytonjb@bellsouth.net (Jeff Layton)
Date: Fri, 17 Aug 2001 16:01:37 -0400
Subject: [vtkusers] experience with VTK and PC?
References: 
Message-ID: <3B7D7821.F583375B@bellsouth.net>

Michael,

   I haven't run VTK for a while (getting ready to "come back to
the fold"). However, at work I've got a few Linux PCs with ATI
Radeon Cards (dual PIII/850 with 2 Gigs of memory). We also
run a commercial OpenGL accelerated X server from X Inside
Graphics (XIG).
   We compared a couple of applications on these boxes to our
Octane2 with V6 graphics. The PCs were about the same speed
from a qualitative point of view. We've been very happy with
them.
   Oh. We're running the V2.0 beta of the OpenGL accelerated X server
from XIG. It's not expensive - $89. According to XIG, the Radeon
is faster than the Geforce2 stuff (can't tell you if it's true since we
don't have any of those cards). I think they will also be coming out
with a X server for the new Radeon 7500 and 8500 cards (don't
know about the time frame though).

Good Luck!

Jeff Layton


"Michael J. Winckler" wrote:

> Hi list members,
>
> our institute facilities are based mainly on SGI machines (rom O2 to
> Origin 200 to Reality Engine 2). Now we consider extending to Linux-
> based PCs in the graphics department two. As we run VTK (and other
> visualization software), we would be glad for some user experience
> about "graphics power in day-to-day applications".
>
> Questions:
>
> 1. nVidia seems to be the graphics chipset to use. GForce3 looks
>    like it is not good enough to make the cut (considering price
>    and performance). Is GForce2 Ultra or Quattro2 Pro the better
>    choice?
>
>    Key applications include *lots* of triangles in some cases,
>    2D-texture mapping on selected (larger) polygons in other
>    areas.
>
> 2. Is Mesa plus XFree performing well or do we need to buy an XServer
>    plus OpenGL? Is there a "professional" OpenGL for Linux still on
>    the market?
>
> Any help would be greatly appreciated. Personal views and impressions
> are grteat. If you think, this is too off-topic, mail to me dircetly
> (although I am pretty sure information on this point would be valuable
> to all VTK users.
>
>            Michael
>
> --
>
>  \\\   Dr. Michael J. Winckler  Michael.Winckler@iwr.uni-heidelberg.de
>  ( o>     http://www.iwr.uni-heidelberg.de/%7EMichael.Winckler/
>  /U )            "If swimming is so good for your figure,
> --oo--                how come whales look the way they do?"
>
> _______________________________________________
> This is the private VTK discussion list.
> Please keep messages on-topic. Check the FAQ at: 
> Follow this link to subscribe/unsubscribe:
> http://public.kitware.com/mailman/listinfo/vtkusers




From nNunn@ausport.gov.au  Fri Aug 17 22:12:14 2001
From: nNunn@ausport.gov.au (Nigel Nunn)
Date: Sat, 18 Aug 2001 07:12:14 +1000
Subject: [vtkusers] Re: experience with VTK and PC?
Message-ID: <24962C31F35BD311A1450000F81F32BD0512829C@elmo.ausport.gov.au>

Hi Michael, 
If your Vtk app needs to calculate the data it renders, 
then consider multi-processor PC motherboards.  Serious 
sciviz apps will be limited by computational bottlenecks 
as well as texture/render speeds.  Your average GeForce 
card can do (theoretical) millions of triangles/sec, but 
the little TCL "spherebench" shatters such pretensions. 
I can recommend DEC's NT OS (also known as WinNT in one 
commercial manifestation) due to its effortless symmetry 
when spreading threads over available processors.  Sadly, 
some institutions only use free software, thus missing out 
on certain professional tools. 
Nigel. 


From rk_house@pacbell.net  Sat Aug 18 21:16:12 2001
From: rk_house@pacbell.net (Ronald K. House)
Date: Sat, 18 Aug 2001 13:16:12 -0700
Subject: [vtkusers] glapi_Context?
Message-ID: <3B7ECD0C.4010005@pacbell.net>

I am trying to build VTK  on a Linux Mandrake 8.0 system.  In user.make, 
I have:

TCL_INCLUDE=-I/usr/local/src/tcl8.2.3/generic
TCL_LIB=-ltcl8.2

TK_INCLUDE=-I/usr/local/src/tk8.2.3/generic
TK_LIB=-L/usr/local/lib -ltk8.2

MESA_INCLUDE=-I/usr/X11R6/include/GL
MESA_LIB=-lOSMesa -lMesaGLU -lMesaGL

I configured using:

./configure --with-tcl --with-tkwidget --with-patented --with-local 
--with-shared --with-mesa

Everything seems to compile and link OK, but when I try to execute vtk, 
I get the following eror:

Error while loading shared libraries: /usr/X11R6/lib/libOSMesa.so.3: 
undefined symbol _glapi_Context

Has anyone else encountered this problem?  And anyone know why the 
doesn't linker catch this?

thanks,
Ron





From semeraro@ncsa.uiuc.edu  Sun Aug 19 01:38:58 2001
From: semeraro@ncsa.uiuc.edu (Dave Semeraro)
Date: Sat, 18 Aug 2001 19:38:58 -0500
Subject: [vtkusers] paralleliso isnt.
Message-ID: <4.2.2.20010818193109.02352d68@pop.ncsa.uiuc.edu>

I have a question about the pipeline execution of the paralleliso example. 
That example uses
several processors to calculate an isosurface. It uses input and output 
ports. Process 0
builds several input ports and pipes their output to an appendpolydata 
filter. I have no doubt
that when the pipeline executes geometry is generated on each process. I am 
not convinced
that it is done concurrently. I think that when the appendpolydata filter 
updates it updates
each of its inputs sequentially. The inputs to the filter are the output if 
the input ports. When
this update occurs it waits for the part of the pipeline to execute and 
unwind for each port
sequentially. That would mean that the filter would wait for each process 
to do its thing
before moving to the next input. Is that what is really happening or am I 
reading the code
incorrectly. I have done some timing of this example and get no speedup. My 
platform is
MPI on a cluster of workstations. The program executes correctly and I get 
the iso surface
but there is no speed up when I increase the number of processors. For the 
program to
execute in parallel there would need to be some asynchronous update 
mechanism and I
cant seem to find it. Of course it is entirely possible that I am mistaken. 
I know there are
several parallel users out there. Anyone experience the same problems?

Best Regards,
Dave Semeraro
Dave Semeraro Ph.D.
Site Scientific Visualization Lead
ASC MSRC Wright Patterson Air force Base

Visualization and Virtual Environments Group
NCSA University of Illinois
605 E. Springfield Ave.
Champaign, IL 61820
Semeraro@ncsa.uiuc.edu
(217) 244-1852



From woodse1@lincoln.ac.nz  Sun Aug 19 10:56:03 2001
From: woodse1@lincoln.ac.nz (Eric Charles Woods)
Date: Sun, 19 Aug 2001 21:56:03 +1200
Subject: [vtkusers] Giving lines a gradient opacity
Message-ID: <3B8035F6.24955.556C9B2@localhost>

I am wanting to display vector data as simple lines with 2 points, 
and I am currently using vtkLineSource ok.

Problem is, I would like to indicate the directions of the lines by 
having it fade from fully opaque to fully transparent.  To do this I 
would like to be able to give each endpoint a different opacity value.
Is this possible?

Even giving each endpoint a different colour value could be better 
than a kick in the pants.

Can anyone think of anything other than a kick in the pants?

thanks


-=^=^=^=^=^=^=^=^=^=^=^=^=^=^=^=^=^=^=-
Eric Woods
Applied Management & Computing Division
Lincoln University
Ph   3253838 ext 8813
Cell 025 605 6021
-=^=^=^=^=^=^=^=^=^=^=^=^=^=^=^=^=^=^=-


From lisa.avila@kitware.com  Sun Aug 19 22:08:38 2001
From: lisa.avila@kitware.com (Lisa Sobierajski Avila)
Date: Sun, 19 Aug 2001 17:08:38 -0400
Subject: [vtkusers] Giving lines a gradient opacity
In-Reply-To: <3B8035F6.24955.556C9B2@localhost>
Message-ID: <4.3.2.20010819170639.02030800@pop.nycap.rr.com>

Hello Eric,

You need to associate scalars with the points in your lines. You would then 
use a lookup table to define the RGBA color for each scalar value - and 
therefore you can have independent color/opacity at each end of the line. 
How well this works for you will depend on your hardware / video driver as 
some of them do a poor job of color interpolation on lines.

Lisa


At 05:56 AM 8/19/2001, Eric Charles Woods wrote:
>I am wanting to display vector data as simple lines with 2 points,
>and I am currently using vtkLineSource ok.
>
>Problem is, I would like to indicate the directions of the lines by
>having it fade from fully opaque to fully transparent.  To do this I
>would like to be able to give each endpoint a different opacity value.
>Is this possible?
>
>Even giving each endpoint a different colour value could be better
>than a kick in the pants.
>
>Can anyone think of anything other than a kick in the pants?
>
>thanks
>
>
>-=^=^=^=^=^=^=^=^=^=^=^=^=^=^=^=^=^=^=-
>Eric Woods
>Applied Management & Computing Division
>Lincoln University
>Ph   3253838 ext 8813
>Cell 025 605 6021
>-=^=^=^=^=^=^=^=^=^=^=^=^=^=^=^=^=^=^=-
>
>_______________________________________________
>This is the private VTK discussion list.
>Please keep messages on-topic. Check the FAQ at: 
>
>Follow this link to subscribe/unsubscribe:
>http://public.kitware.com/mailman/listinfo/vtkusers




From shade_cn@yahoo.com  Mon Aug 20 04:04:40 2001
From: shade_cn@yahoo.com (Shade)
Date: Mon, 20 Aug 2001 11:04:40 +0800
Subject: [vtkusers] How can do surface rendering with hardware acceleartion?
References: <4.3.2.20010819170639.02030800@pop.nycap.rr.com>
Message-ID: <001701c12924$dcdb0ff0$4501a8c0@vicolab.dyndns.org>

Dear everyone,

    When I do volume rendering with vtkWin32OpenGLRenderWindow
and vtkVolumeTextureMapper2D, I can utilize the hardware
acceleration of my "3Dlabs Permedia3!" display adapter, the
rendering speed is faster than other display adapter without
hardware acceleration. But when I do surface rendering with
vtkWin32OpenGLRenderWindow and vtkOpenGLPolyDataMapper, it
seems the rendering speed of "3Dlabs Permedia3!" is the same
slow as other display adapter without hareware acceleration.
    Who can tell me what's wrong with my surface rendering
scheme? Thanks in advance!

Yours,
Shade




From B.Mannan@geind.ge.com  Mon Aug 20 08:02:01 2001
From: B.Mannan@geind.ge.com (Mannan, B (CORP, GEITC))
Date: Mon, 20 Aug 2001 12:32:01 +0530
Subject: [vtkusers] Basic problem while installing
Message-ID: <2025E70FDF44D511918D00508B650D9401AD6685@ban03xbindge.geind.ge.com>

hi folks,
       I am getting following error message while loading vtktsl.dll in
wish82 
                                " couldn't load file "vtktcl": invalid
argument "
       I removed all vtk related binaries and reinstalled new version of
vtk3.2 and tcl/tk8.2.3 from the CD.Can anybody suggest how to overcome this
problem.

Thanks in advance,
B, Mannan

_____________________________________________________________
B. Mannan,       Ph.D.               eMail: B.Mannan@geind.ge.com
Global Imaging Technologies Lab     Work:  +91-80-8412050...69 ext 2121
GE John F. Welch Technology Center    Fax: +91-80-8412111 DCom:*9012121
EPIP, 152, Phase II,   Hoodi Village,  Whitefield Rd.,  Bangalore  560066,
INDIA





From zhangjunyue@sina.com  Mon Aug 20 08:23:03 2001
From: zhangjunyue@sina.com (zhang junyue)
Date: Mon, 20 Aug 2001 15:23:03 +0800
Subject: [vtkusers] How to use vtkCellDataToPointData?
Message-ID: <000801c12948$f36ee600$0b1684c0@etazjy>

This is a multi-part message in MIME format.

------=_NextPart_000_0005_01C1298C.015989D0
Content-Type: text/plain;
	charset="gb2312"
Content-Transfer-Encoding: quoted-printable

Hi, everyone,

I have a UnstructuredGrid model, which contains cell data. My request is =
to show the model in point data. =20
After looking for VTK GUIDE, I find vtkCellDataToPointData, but how to =
use it?

Thanks for your any help.

Best Regards

J.Zhang

------=_NextPart_000_0005_01C1298C.015989D0
Content-Type: text/html;
	charset="gb2312"
Content-Transfer-Encoding: quoted-printable









Hi, everyone,


 


I have a UnstructuredGrid model, which =
contains=20
cell data. My request is to show the model in point data.  =



After looking for VTK GUIDE, I find=20
vtkCellDataToPointData, but how to use it?


 


Thanks for your any help.


 


Best Regards


 


J.Zhang


------=_NextPart_000_0005_01C1298C.015989D0--



From simon.faust@post.rwth-aachen.de  Mon Aug 20 13:49:42 2001
From: simon.faust@post.rwth-aachen.de (Simon Faust)
Date: Mon, 20 Aug 2001 14:49:42 +0200
Subject: [vtkusers] read/insert points from/into polydata
Message-ID: <000e01c12976$957c0fe0$02300a0a@nexus>

This is a multi-part message in MIME format.

------=_NextPart_000_000B_01C12987.58A92B50
Content-Type: text/plain;
	charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable

Hi=20
I have the following little problem: in my app, there is a vtkPolyData =
that contains several vtkPoints. These points have to be transformed. =
After that, I want to read the transformed point data and insert it into =
another instance of vtkPolyData.
I have tried the following:
 Set nextprofile =3D profileTF2.GetOutput.GetPoints (after =
transformation, profileTF2 is vtkTransformPolyDataFilter)
and then
 segmentpt(j).SetPoint 0, nextprofile.GetPoint(0) (in order to insert =
Point 0 from nextprofile as Point 0 into segmentpt(j) (<- vtkPoint)).=20
This doesn't work. Thankfully awaiting any hints
Simon

    =20

------=_NextPart_000_000B_01C12987.58A92B50
Content-Type: text/html;
	charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable









Hi 


I have the following little problem: in =
my app,=20
there is a vtkPolyData that contains several vtkPoints. These points =
have to be=20
transformed. After that, I want to read the transformed point data and =
insert it=20
into another instance of vtkPolyData.


I have tried the =
following:


 Set nextprofile =3D=20
profileTF2.GetOutput.GetPoints (after transformation, profileTF2 is=20
vtkTransformPolyDataFilter)


and then


 segmentpt(j).SetPoint 0,=20
nextprofile.GetPoint(0) (in order to insert Point 0 from nextprofile as =
Point 0=20
into segmentpt(j) (<- vtkPoint)). 


This doesn't work. Thankfully awaiting =
any=20
hints


Simon


 


    =20



------=_NextPart_000_000B_01C12987.58A92B50--



From berk.geveci@kitware.com  Mon Aug 20 15:32:33 2001
From: berk.geveci@kitware.com (Berk Geveci)
Date: Mon, 20 Aug 2001 10:32:33 -0400
Subject: [vtkusers] paralleliso isnt.
Message-ID: <3B811F81.F84AFC7C@kitware.com>

Hi Dave,

> For the program to execute in parallel there would need to be some asynchronous
> update mechanism and I cant seem to find it. Of course it is entirely possible 
> that I am mistaken.

There is already an asynchronous update mechanism. It is one of the passes
in the pipeline execution: TriggerAsynchronousUpdate(). It is between 
PropagateUpdateExtent() and UpdateData(). This is described in detail in
the User's Guide. The code you want to look at is in vtkInputPort. In the implementation of TriggerAsynchronousUpdate(), the input port triggers 
an update in the corresponding output port. Since this is done for all
inputs of the append filter in a loop, all the processes start executing 
roughly at the same time. I have instrumented ParallelIso with MPE and I
am attaching the result. You can see that all the processes start reading
roughly at the same time. 

You can also see that the first process reads and contours only after it 
completes receiving.  This WAS a bug (I fixed it about a month ago; the log
files are from before them). Normally, the process object  sorts it's inputs by
locality and calls Update() on the local inputs first.  The problem was that the
input port was not setting the locality parameter. After fixing that, I observed
that all processes read and contoured in parallel.

When I ran this program in our cluster, I also observed that it scales
very poorly. I think there are two reasons for this:
1) IO: In our setting, the data files are on a shared disk which is mounted
via NFS. All processes start reading from the same disk, sharing the same
network switch. To test whether this is the case, one would have to put a
local copy of the data files to each machine.
2) Balance: This problem is not balanced AT ALL. Some of the processes
do not generate anything when contouring, some others generate a lot. The
situation gets worse as the number of processes is increased.

I hope this answers your questions.

-- 
Berk Geveci, Ph.D.
Kitware, Inc.
VTK-Based Visualization Solutions
469 Clifton Corporate Parkway
Clifton Park, NY 12065 USA
berk.geveci@kitware.com
http://www.kitware.com
Phone (518) 371-3971 x107
Fax   (518) 371-3971


From Yogish.Mallya@geind.ge.com  Mon Aug 20 16:08:12 2001
From: Yogish.Mallya@geind.ge.com (Mallya, Yogish (CORP, GEITC))
Date: Mon, 20 Aug 2001 20:38:12 +0530
Subject: [vtkusers] help needed in  resolving this pipeline problem
Message-ID: <2025E70FDF44D511918D00508B650D9401AFA8BB@ban03xbindge.geind.ge.com>

Hi folks,

I am using vtkImageDatastreamer to split the data in the Z direction(to
create  smaller chunks ). The tcl code looks something like this.
            
 	vtkImageGradientMagnitude gradient
	gradient SetInput [ reader GetOutput]

           
           vtkImageDataStreamer imageStreamer1
           imageStreamer1 SetInput [ gradient  GetOutput]
	imageStreamer1 Update


	 vtkImageDataStreamer imageStreamer2
            imageStreamer2 SetInput [ gradient  GetOutput]
	imageStreamer2 Update

Here object "gradient" executes twice. Is this the right behaviour of
pipeline ?. Actually I want to execute "gradient" only once. Can someone
please tell me how to overcome the re-execution of "gradient" ?


Thanks in advance,
Yogish mallya  





     

          


            


            






From Olivier.Cuisenaire@epfl.ch  Mon Aug 20 16:19:03 2001
From: Olivier.Cuisenaire@epfl.ch (Olivier Cuisenaire)
Date: Mon, 20 Aug 2001 17:19:03 +0200
Subject: [vtkusers] bug / fix in vtkXYPlotActor.cxx
Message-ID: <3B812A67.60908@epfl.ch>

This is a multi-part message in MIME format.
--------------060907020003010707080407
Content-Type: text/plain; charset=us-ascii; format=flowed
Content-Transfer-Encoding: 7bit


I think I found a small bug in vtkXYPlotActor. It doesn't display the 
range of the Y axis correctly in some cases. The following patch solves 
the problem.

Olivier

-- 
Olivier Cuisenaire, Ph.D.              Phone:+41 21 6934712
http://ltswww.epfl.ch/~cuisenai 
        Fax:  +41 21 6937600	
Signal Processing Laboratory (LTS), Swiss Federal Institute
of Technology (EPFL), CH-1015 Lausanne, Switzerland


--------------060907020003010707080407
Content-Type: text/plain;
 name="patch.txt"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline;
 filename="patch.txt"

Index: vtkXYPlotActor.cxx
===================================================================
RCS file: /vtk/cvsroot/vtk/contrib/vtkXYPlotActor.cxx,v
retrieving revision 1.24
diff -r1.24 vtkXYPlotActor.cxx
541c541
< 	      this->YAxis->SetRange(yrange[1],range[0]);
---
> 	      this->YAxis->SetRange(yrange[1],yrange[0]);

--------------060907020003010707080407--



From smd@occlusal.rutgers.edu  Mon Aug 20 17:44:50 2001
From: smd@occlusal.rutgers.edu (Stanley Dunn)
Date: Mon, 20 Aug 2001 12:44:50 -0400 (EDT)
Subject: [vtkusers] paralleliso isnt.
In-Reply-To: <3B811F81.F84AFC7C@kitware.com>
Message-ID: 

On Mon, 20 Aug 2001, Berk Geveci wrote:

> When I ran this program in our cluster, I also observed that it scales
> very poorly. I think there are two reasons for this:
> 1) IO: In our setting, the data files are on a shared disk which is mounted
> via NFS. All processes start reading from the same disk, sharing the same
> network switch. To test whether this is the case, one would have to put a
> local copy of the data files to each machine.
> 2) Balance: This problem is not balanced AT ALL. Some of the processes
> do not generate anything when contouring, some others generate a lot. The
> situation gets worse as the number of processes is increased.

When I was working on this last year with Scott Klasky at PPPL, it did
scale very poorly and I believe that this is due in part to 
marshalling/unmarshalling the data.  I assume that the
marshalling/unmarshalling has not changed in the past year.
Stan

 
Stanley M Dunn, Ph.D.
Paul S. and Mary W. Monroe Faculty Scholar
Vice Chair, Biomedical Engineering
Associate Dean for Industrial Outreach, School of Engineering
Rutgers University

(732) 445 - 4462 (BME)
(732) 445 - 3224 (SOE/CPSE)
(732) 445 - 3753 (Fax)




From jshalf@lbl.gov  Mon Aug 20 18:25:09 2001
From: jshalf@lbl.gov (John Shalf)
Date: Mon, 20 Aug 2001 10:25:09 -0700
Subject: [vtkusers] paralleliso isnt.
References: 
Message-ID: <3B8147F5.2A01B65C@lbl.gov>

Stanley Dunn wrote:
> 
> On Mon, 20 Aug 2001, Berk Geveci wrote:
> 
> > When I ran this program in our cluster, I also observed that it scales
> > very poorly. I think there are two reasons for this:
> > 1) IO: In our setting, the data files are on a shared disk which is mounted
> > via NFS. All processes start reading from the same disk, sharing the same
> > network switch. To test whether this is the case, one would have to put a
> > local copy of the data files to each machine.
> > 2) Balance: This problem is not balanced AT ALL. Some of the processes
> > do not generate anything when contouring, some others generate a lot. The
> > situation gets worse as the number of processes is increased.
> 
> When I was working on this last year with Scott Klasky at PPPL, it did
> scale very poorly and I believe that this is due in part to
> marshalling/unmarshalling the data.  I assume that the
> marshalling/unmarshalling has not changed in the past year.
> Stan

I think Jim Ahrens pointed out to me at one time that the
default marshalling/unmarshalling is in ASCII, but there is
a method that can be used to force the vtkMPICommunicator to
use binary.  Otherwise you get throttled by the cost of
marshalling/unmarshalling the data (an incredibly slow
process even on gigahertz CPU's).

Anyways, this was from a conversation from more than a year
ago about code that hadn't made it to release yet.  I expect
its now part of the vtk CVS tree, but I haven't had time to
follow up on it.  If anyone finds this method for turning
off ASCII marshalling, then please report to the list.

-john


From amy.henderson@kitware.com  Mon Aug 20 18:30:06 2001
From: amy.henderson@kitware.com (Amy Henderson)
Date: Mon, 20 Aug 2001 13:30:06 -0400
Subject: [vtkusers] bug / fix in vtkXYPlotActor.cxx
In-Reply-To: <3B812A67.60908@epfl.ch>
Message-ID: <4.3.2.7.2.20010820131342.01f6b578@pop.nycap.rr.com>

--=====================_619478462==_.ALT
Content-Type: text/plain; charset="us-ascii"; format=flowed

This bug has been fixed for a new VTK tree, to be announced shortly.  If 
you're really adventurous, you can get a copy of the new tree from cvs at 
anonymous@www.visualizationtoolkit.org:/cvsroot/VTK co VTK, and there's a 
README file in the VTK directory explaining how to build and compile, but 
be aware that things are still rapidly changing in the new tree.

- Amy

At 05:19 PM 8/20/2001 +0200, Olivier Cuisenaire wrote:

>I think I found a small bug in vtkXYPlotActor. It doesn't display the 
>range of the Y axis correctly in some cases. The following patch solves 
>the problem.
>
>Olivier
>
>--
>Olivier Cuisenaire, Ph.D.              Phone:+41 21 6934712
>http://ltswww.epfl.ch/~cuisenai        Fax:  +41 21 6937600
>Signal Processing Laboratory (LTS), Swiss Federal Institute
>of Technology (EPFL), CH-1015 Lausanne, Switzerland
>
>
>
>Index: vtkXYPlotActor.cxx
>===================================================================
>RCS file: /vtk/cvsroot/vtk/contrib/vtkXYPlotActor.cxx,v
>retrieving revision 1.24
>diff -r1.24 vtkXYPlotActor.cxx
>541c541
><             this->YAxis->SetRange(yrange[1],range[0]);
>---
> >             this->YAxis->SetRange(yrange[1],yrange[0]);

--=====================_619478462==_.ALT
Content-Type: text/html; charset="us-ascii"


This bug has been fixed for a new VTK tree, to be announced
shortly.  If you're really adventurous, you can get a copy of the
new tree from cvs at
anonymous@www.visualizationtoolkit.org:/cvsroot/VTK
co VTK, and there's a README file in the VTK directory explaining how to
build and compile, but be aware that things are still rapidly changing in
the new tree.



- Amy



At 05:19 PM 8/20/2001 +0200, Olivier Cuisenaire wrote:




I think I found a small bug in vtkXYPlotActor.
It doesn't display the range of the Y axis correctly in some cases. The
following patch solves the problem.



Olivier



-- 

Olivier Cuisenaire,
Ph.D.             
Phone:+41 21 6934712

http://ltswww.epfl.ch/~cuisenai      
 Fax:  +41 21
6937600     

Signal Processing Laboratory (LTS), Swiss Federal Institute

of Technology (EPFL), CH-1015 Lausanne, Switzerland







Index: vtkXYPlotActor.cxx

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

RCS file: /vtk/cvsroot/vtk/contrib/vtkXYPlotActor.cxx,v

retrieving revision 1.24

diff -r1.24 vtkXYPlotActor.cxx

541c541

<
           
this->YAxis->SetRange(yrange[1],range[0]);

---

>
           
this->YAxis->SetRange(yrange[1],yrange[0]);


--=====================_619478462==_.ALT--



From odonnell@ai.mit.edu  Mon Aug 20 15:35:49 2001
From: odonnell@ai.mit.edu (Lauren O'Donnell)
Date: Mon, 20 Aug 2001 10:35:49 -0400 (EDT)
Subject: [vtkusers] help?, and bug in vtkHyperStreamline.cxx
Message-ID: 

In vtkHyperStreamline.cxx if the user calls SetStartLocation (instead of
the SetStartPosition used in Hyper.tcl) this information is not used by
the class.  I added what seems like the correct code, but I am having
other problems (see below).

In the Execute method, I added a few lines of code (snippet starts at line
460):
  else //VTK_START_FROM_LOCATION
    {
      sPtr = this->Streamers[0].InsertNextHyperPoint();
	
      // --- these few lines are the part I added:	
      // use start location information from user
      sPtr->CellId = this->StartCell;
      sPtr->SubId = this->StartSubId;
      for (i=0; i<3; i++) 
	{
	  sPtr->P[i] = this->StartPCoords[i];
	}
      // --- end of code that I added.

      cell =  input->GetCell(sPtr->CellId);
      cell->EvaluateLocation(sPtr->SubId, sPtr->P, sPtr->X, w);    
    }


The problem that I am currently having is that I am using vtkCellPicker to
pick locations from which to start hyperstreamlines, and either of these
two things happens:

1.  If I use x,y,z coordinates from the picker, the HyperStreamline class
does not find the same cell as the picker, and often finds no cell (-1).

2. If I use a cell id as input to the HyperStreamline class, the x,y,z
coordinates (found using the above patch) do not match those found by the
picker.  They are not even close, and the output streamline does not
appear near the originally picked point.

There must be something I really don't understand here.  Any help is
appreciated. (A few more boring details are at the end.) 
Thanks!

Lauren


Boring details: Here are some cells I picked with the picker, and their
x,y,z coords according to the picker and to the HyperStreamline class:

User-Selected Cell: 40905  0  1 0 0 , (x,y,z): 123.201 93.4667 4.97678
HyperStreamline input cell: 40905 (x,y,z): 12 68 2 

User-Selected Cell: 40131  0  0 0 0 , (x,y,z): 123.002 88.2196 4.05933
HyperStreamline input cell: 40131 x,y,z: 126 61 2 

User-Selected Cell: 40906  0  0 0 0 , (x,y,z): 125.153 94.694 3.78601
HyperStreamline input cell: 40906 x,y,z: 12 68 2 

I also set the Tolerance of the picker to 0.001 but that didn't help.





From berk.geveci@kitware.com  Mon Aug 20 19:52:41 2001
From: berk.geveci@kitware.com (Berk Geveci)
Date: Mon, 20 Aug 2001 14:52:41 -0400
Subject: [vtkusers] paralleliso isnt.
Message-ID: <3B815C79.B3E38B4B@kitware.com>

> When I was working on this last year with Scott Klasky at PPPL, it did
> scale very poorly and I believe that this is due in part to
> marshalling/unmarshalling the data.  I assume that the
> marshalling/unmarshalling has not changed in the past year.
> 

This is quite possible. I didn't run into it in my tests but I only
ran on up to 8 processors.

> I think Jim Ahrens pointed out to me at one time that the
> default marshalling/unmarshalling is in ASCII, but there is
> a method that can be used to force the vtkMPICommunicator to
> use binary.  Otherwise you get throttled by the cost of
> marshalling/unmarshalling the data (an incredibly slow
> process even on gigahertz CPU's).

The marshalling/unmarshalling is not done in ASCII (as far as I can
see, it's not even possible to force it to be ASCII). It has been this
way for at least a year (I really don't know when that was changed,
it must have been before I joined Kitware last year).

-- 
Berk Geveci, Ph.D.
Kitware, Inc.
VTK-Based Visualization Solutions
469 Clifton Corporate Parkway
Clifton Park, NY 12065 USA
berk.geveci@kitware.com
http://www.kitware.com
Phone (518) 371-3971 x107
Fax   (518) 371-3971


From ben.held@staarinc.com  Mon Aug 20 21:52:21 2001
From: ben.held@staarinc.com (Ben Held)
Date: Mon, 20 Aug 2001 15:52:21 -0500
Subject: [vtkusers] Wait cursor during filter execution using vtkJava
Message-ID: 

Is there a way to force a wait cursor to be displayed when the vtk filter
chain is executed using vtkJava?  I am familiar with how to turn on a wait
cursor in java, but even if I call:

waitCursorStart();
mapper.GetInput().Update();
waitCursorEnd();

Where waitCursorStart and waitCursorEnd are my functions.

I don't see a wait cursor - the vtkframe is just white during the update.

Ben

Ben L. Held
Simulation Technology & Applied Research, Inc.
11520 N. Port Washington Rd.
Suite 101B
Mequon, WI  53092
Phone: (262) 240-0291 x101
FAX: (262) 240-0294
e-mail: ben.held@staarinc.com
web: http://www.staarinc.com




From jeff@cdnorthamerica.com  Mon Aug 20 22:28:53 2001
From: jeff@cdnorthamerica.com (J.A. Lee)
Date: Mon, 20 Aug 2001 17:28:53 -0400
Subject: [vtkusers] Wait cursor during filter execution using vtkJava
References: 
Message-ID: <3B818115.5C201763@cdnorthamerica.com>

Mabey combination of SetProgressMethod and
setCursor(Cursor.getPredefinedCursor(Cursor.WAIT_CURSOR)).  The method you feed
SetProgressMethod will get executed as many times as the filter executes, so you could set the
cursor to wait when GetProgress is 0 and then set it to default when GetProgress is 100 or
something like that.
-Jeff

Ben Held wrote:

> Is there a way to force a wait cursor to be displayed when the vtk filter
> chain is executed using vtkJava?  I am familiar with how to turn on a wait
> cursor in java, but even if I call:
>
> waitCursorStart();
> mapper.GetInput().Update();
> waitCursorEnd();
>
> Where waitCursorStart and waitCursorEnd are my functions.
>
> I don't see a wait cursor - the vtkframe is just white during the update.
>
> Ben
>
> Ben L. Held
> Simulation Technology & Applied Research, Inc.
> 11520 N. Port Washington Rd.
> Suite 101B
> Mequon, WI  53092
> Phone: (262) 240-0291 x101
> FAX: (262) 240-0294
> e-mail: ben.held@staarinc.com
> web: http://www.staarinc.com
>
> _______________________________________________
> This is the private VTK discussion list.
> Please keep messages on-topic. Check the FAQ at: 
> Follow this link to subscribe/unsubscribe:
> http://public.kitware.com/mailman/listinfo/vtkusers



From evertjan@isi.uu.nl  Mon Aug 20 22:47:18 2001
From: evertjan@isi.uu.nl (evertjan@isi.uu.nl)
Date: Mon, 20 Aug 2001 23:47:18 +0200
Subject: [vtkusers] surface reconstruction from unstructured grid
Message-ID: <3B818566.33FE2B3A@isi.uu.nl>

Hi,

I have sample points of the surface of a single 3D object, shaped
something like a bowling pin (so mostly convex, but some local
concavities) in an unstructured grid.
From these (sparse) points I want to find a surface representation of
the volume.
I used Delaunay3D, but this does not reconstruct the concave part well,
even for alpha!=0, which yielded some surprising results. The
vtkSurfaceReconstructionFilter gives strange results too, maybe because
the number of points (80 per volume) is too low?

Anybody has hints on this? I have a fealing Delaynay might do the trick
with some restrictions?

Best regards

Evert-jan Vonken



From lisa.avila@kitware.com  Mon Aug 20 22:10:54 2001
From: lisa.avila@kitware.com (Lisa S. Avila)
Date: Mon, 20 Aug 2001 17:10:54 -0400
Subject: [vtkusers] volume rendering changes
In-Reply-To: <4.3.2.7.2.20010820131342.01f6b578@pop.nycap.rr.com>
References: <3B812A67.60908@epfl.ch>
Message-ID: <5.0.0.25.0.20010820153859.0c43c668@pop.nycap.rr.com>

--=====================_457659406==_.ALT
Content-Type: text/plain; charset="us-ascii"; format=flowed

Hello,

I have just checked in some fairly significant changes to 
vtkVolumeRayCastMapper. These changes are part of the "bigger picture" of 
the rendering restructuring in VTK.

Here are the highlights of the change:
    * The vtkVolumeRayCastMapper now does its own ray casting (as opposed 
to relying on the vtkRayCaster)
    * The ray casting resolution is independent of the resolution at which 
geometry is rendered - so when you drop to lower resolution ray casting for 
interactivity the geometry does not become blocky
Here are the API changes:
    * All the methods in vtkRayCaster are obsolete. This includes:
        * Methods to control the automatic image scale such as 
AutomaticScaleAdjustmentOn, AutomaticScaleAdjustmentOff, 
SetAutomaticScaleLowerLimit. Instead you should use these methods on the 
vtkRayCastMapper: AutoAdjustSampleDistancesOn, 
AutoAdjustSampleDistancesOff, SetImageSampleDistance, 
SetMinimumImageSampleDistance, and SetMaximumImageSampleDistance
        * The method to control the number of threads - this has moved from 
vtkRayCaster to vtkVolumeRayCastMapper (SetNumberOfThreads)
        * Methods to control nearest neighbor or bilinear zoom - in the new 
vtkVolumeRayCastMapper only bilinear zoom is supported currently.
    * Ray bounding for ray casting is no longer supported. Therefore the 
SetRayBounder method is obsolete on the vtkVolumeRayCastMapper.
    * A new variable IntermixIntersectingGeometry was introduced into the 
vtkVolumeRayCastMapper. By default it is on. If you do not have 
intersecting geometry (a bounding box around the volume is not 
intersecting, a cursor drawn through the volume is) you may want to turn 
this off to improve the performance and the low resolution image.


Here is what's coming next:

         Next Monday I will be checking in the next set of changes. This 
will include removing two passes from the renderer (ray casting and render 
into image). At this point I will remove the following obsolete classes:

vtkRayCaster
vtkViewRays
vtkRayBounder
vtkProjectedPolyDataRayBounder
vtkOpenGLProjectedPolyDataRayBounder
vtkMesaProjectedPolyDataRayBounder
vtkRayCastStructures.h
vtkVolumeRayCastStructures.h


Let me know if you run into any problems or have any questions.


Lisa


--=====================_457659406==_.ALT
Content-Type: text/html; charset="us-ascii"


Hello, 



I have just checked in some fairly significant changes to
vtkVolumeRayCastMapper. These changes are part of the "bigger
picture" of the rendering restructuring in VTK.



Here are the highlights of the change:

    

  • The vtkVolumeRayCastMapper now does its own ray casting (as opposed
to relying on the vtkRayCaster)

  • The ray casting resolution is independent of the resolution at which
geometry is rendered - so when you drop to lower resolution ray casting
for interactivity the geometry does not become blocky

Here are the API changes:

    

  • All the methods in vtkRayCaster are obsolete. This includes:

      

    • Methods to control the automatic image scale such as
AutomaticScaleAdjustmentOn, AutomaticScaleAdjustmentOff,
SetAutomaticScaleLowerLimit. Instead you should use these methods on the
vtkRayCastMapper: AutoAdjustSampleDistancesOn,
AutoAdjustSampleDistancesOff, SetImageSampleDistance,
SetMinimumImageSampleDistance, and SetMaximumImageSampleDistance

    • The method to control the number of threads - this has moved from
vtkRayCaster to vtkVolumeRayCastMapper (SetNumberOfThreads)

    • Methods to control nearest neighbor or bilinear zoom - in the new
vtkVolumeRayCastMapper only bilinear zoom is supported currently.

    

  • Ray bounding for ray casting is no longer supported. Therefore the
SetRayBounder method is obsolete on the vtkVolumeRayCastMapper.

  • A new variable IntermixIntersectingGeometry was introduced into the
vtkVolumeRayCastMapper. By default it is on. If you do not have
intersecting geometry (a bounding box around the volume is not
intersecting, a cursor drawn through the volume is) you may want to turn
this off to improve the performance and the low resolution image.





Here is what's coming next:



        Next
Monday I will be checking in the next set of changes. This will include
removing two passes from the renderer (ray casting and render into
image). At this point I will remove the following obsolete classes:



vtkRayCaster

vtkViewRays

vtkRayBounder

vtkProjectedPolyDataRayBounder

vtkOpenGLProjectedPolyDataRayBounder

vtkMesaProjectedPolyDataRayBounder

vtkRayCastStructures.h

vtkVolumeRayCastStructures.h





Let me know if you run into any problems or have any questions.





Lisa





--=====================_457659406==_.ALT--



From jeff@cdnorthamerica.com  Mon Aug 20 22:43:32 2001
From: jeff@cdnorthamerica.com (J.A. Lee)
Date: Mon, 20 Aug 2001 17:43:32 -0400
Subject: [vtkusers] Wait cursor during filter execution using vtkJava
References:  <3B818115.5C201763@cdnorthamerica.com>
Message-ID: <3B818484.EC99B2EE@cdnorthamerica.com>

--------------0588385C6CCDF619A22BDAEE
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Better yet, you could use SetStartMethod and SetEndMethod instead of SetProgressMethod, like
vtkGeometryFilter gf;
gf.SetStartMethod(this,"startProgress");
gf.SetEndMethod(this,"endProgress");
protected void startProgress(){setCursor(Cursor.getPredefinedCursor(Cursor.WAIT_CURSOR));
protected void endProgress(){setCursor(Cursor.getPredefinedCursor(Cursor.DEFAULT_CURSOR));}


"J.A. Lee" wrote:

> Mabey combination of SetProgressMethod and
> setCursor(Cursor.getPredefinedCursor(Cursor.WAIT_CURSOR)).  The method you feed
> SetProgressMethod will get executed as many times as the filter executes, so you could set the
> cursor to wait when GetProgress is 0 and then set it to default when GetProgress is 100 or
> something like that.
> -Jeff
>
> Ben Held wrote:
>
> > Is there a way to force a wait cursor to be displayed when the vtk filter
> > chain is executed using vtkJava?  I am familiar with how to turn on a wait
> > cursor in java, but even if I call:
> >
> > waitCursorStart();
> > mapper.GetInput().Update();
> > waitCursorEnd();
> >
> > Where waitCursorStart and waitCursorEnd are my functions.
> >
> > I don't see a wait cursor - the vtkframe is just white during the update.
> >
> > Ben
> >
> > Ben L. Held
> > Simulation Technology & Applied Research, Inc.
> > 11520 N. Port Washington Rd.
> > Suite 101B
> > Mequon, WI  53092
> > Phone: (262) 240-0291 x101
> > FAX: (262) 240-0294
> > e-mail: ben.held@staarinc.com
> > web: http://www.staarinc.com
> >
> > _______________________________________________
> > This is the private VTK discussion list.
> > Please keep messages on-topic. Check the FAQ at: 
> > Follow this link to subscribe/unsubscribe:
> > http://public.kitware.com/mailman/listinfo/vtkusers
>
> _______________________________________________
> This is the private VTK discussion list.
> Please keep messages on-topic. Check the FAQ at: 
> Follow this link to subscribe/unsubscribe:
> http://public.kitware.com/mailman/listinfo/vtkusers

--
J.A. Lee
Software Engineer
Computational Dynamics North America
3 Schoolhouse Lane
Etna NH, 03750
ph: 603-643-9993 x109, fax: 603-643-9994



--------------0588385C6CCDF619A22BDAEE
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Better yet, you could use SetStartMethod and SetEndMethod instead of SetProgressMethod,
like

vtkGeometryFilter gf;

gf.SetStartMethod(this,"startProgress");

gf.SetEndMethod(this,"endProgress");

protected void startProgress(){setCursor(Cursor.getPredefinedCursor(Cursor.WAIT_CURSOR));

protected void endProgress(){setCursor(Cursor.getPredefinedCursor(Cursor.DEFAULT_CURSOR));}

 

"J.A. Lee" wrote:

Mabey combination of SetProgressMethod and

setCursor(Cursor.getPredefinedCursor(Cursor.WAIT_CURSOR)).  The
method you feed

SetProgressMethod will get executed as many times as the filter executes,
so you could set the

cursor to wait when GetProgress is 0 and then set it to default when
GetProgress is 100 or

something like that.

-Jeff

Ben Held wrote:

> Is there a way to force a wait cursor to be displayed when the vtk
filter

> chain is executed using vtkJava?  I am familiar with how to
turn on a wait

> cursor in java, but even if I call:

>

> waitCursorStart();

> mapper.GetInput().Update();

> waitCursorEnd();

>

> Where waitCursorStart and waitCursorEnd are my functions.

>

> I don't see a wait cursor - the vtkframe is just white during the
update.

>

> Ben

>

> Ben L. Held

> Simulation Technology & Applied Research, Inc.

> 11520 N. Port Washington Rd.

> Suite 101B

> Mequon, WI  53092

> Phone: (262) 240-0291 x101

> FAX: (262) 240-0294

> e-mail: ben.held@staarinc.com

> web: http://www.staarinc.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://public.kitware.com/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://public.kitware.com/mailman/listinfo/vtkusers



-- 
J.A. Lee
Software Engineer
Computational Dynamics North America
3 Schoolhouse Lane
Etna NH, 03750
ph: 603-643-9993 x109, fax: 603-643-9994

 

--------------0588385C6CCDF619A22BDAEE--



From leung@arlut.utexas.edu  Mon Aug 20 22:50:58 2001
From: leung@arlut.utexas.edu (leung@arlut.utexas.edu)
Date: Mon, 20 Aug 2001 16:50:58 -0500
Subject: [vtkusers] VTK and VRML C++ examples
Message-ID: 

Hi,

I was wondering if someone has some examples of C++ code that allows one to
export to a file in VRML (.wml).  Thanks.

Al



From P.Kiran@geind.ge.com  Tue Aug 21 07:14:31 2001
From: P.Kiran@geind.ge.com (Kiran, P (CORP, GEITC))
Date: Tue, 21 Aug 2001 11:44:31 +0530
Subject: [vtkusers] How to get Eigen values and Eigen vectors ?
Message-ID: <2025E70FDF44D511918D00508B650D9401B212B5@ban03xbindge.geind.ge.com>

Hi all:

I want to do eigen decompostion for a matrix (of order 3x3) to extract the
principal axes.
I have looked at   vtkMath::Jacobi(....,....,...); But it works only for a
symetrical matrix ( of order 3x3).

Does anyone tried for eigen decomposition for a general matrix ( of order
3x3) ?
Are there any available methods on vtk to do this stuff.

Thanks in advance for help..
-Kiran




From dgobbi@irus.rri.ca  Tue Aug 21 07:45:17 2001
From: dgobbi@irus.rri.ca (David Gobbi)
Date: Tue, 21 Aug 2001 02:45:17 -0400 (EDT)
Subject: [vtkusers] How to get Eigen values and Eigen vectors ?
In-Reply-To: <2025E70FDF44D511918D00508B650D9401B212B5@ban03xbindge.geind.ge.com>
Message-ID: 

Hi Kiran,

In the CVS version of VTK there is a function in vtkMath called
vtkSingularValueDecomposition3x3 that you can use.  I have spent
a fair bit of time testing it, and I trust it.
The vtkTransform::GetScale() method uses it.

It has a very unconventional implementation.  It actually works
by creating a special symmetric 4x4 matrix from the 3x3 matrix,
applying Jacobi to the 4x4 matrix to get a quaternion representing
the orthogonalization of the 3x3 matrix, and continues from
there.  It could otherwise be know as "how to do SVD when you
don't have a real SVD algorithm."

 - David

--
  David Gobbi, MSc                       dgobbi@irus.rri.ca
  Advanced Imaging Research Group
  Robarts Research Institute, University of Western Ontario

On Tue, 21 Aug 2001, Kiran, P (CORP, GEITC) wrote:

>
> Hi all:
>
> I want to do eigen decompostion for a matrix (of order 3x3) to extract the
> principal axes.
> I have looked at   vtkMath::Jacobi(....,....,...); But it works only for a
> symetrical matrix ( of order 3x3).
>
> Does anyone tried for eigen decomposition for a general matrix ( of order
> 3x3) ?
> Are there any available methods on vtk to do this stuff.
>
> Thanks in advance for help..
> -Kiran



From Anner Adrian   Tue Aug 21 08:20:33 2001
From: Anner Adrian  (Anner Adrian)
Date: Tue, 21 Aug 2001 09:20:33 +0200
Subject: [vtkusers] 3D program
Message-ID: <83533170.20010821092033@medres.ch>

Hello ,

I'm looking for a 3D program (like 3D Studio MAX, Light Wave 3D,...)
to work together with vtk. Does anybody work with a 3D program in
combination with vtk. what program can you recommend? I also thinking
about a small animation which I want make in the progam and show it in
a vtk application.

  

-- 
Best regards,
 Anner Adrian                         mailto:a.anner@medres.ch




From P.Kiran@geind.ge.com  Tue Aug 21 10:22:06 2001
From: P.Kiran@geind.ge.com (Kiran, P (CORP, GEITC))
Date: Tue, 21 Aug 2001 14:52:06 +0530
Subject: [vtkusers] Eigen values and eigen vectors of a non-symmetric matrix (3x3 )
Message-ID: <2025E70FDF44D511918D00508B650D9401B4FF3B@ban03xbindge.geind.ge.com>

Hi all:

In my last mail, I have asked for finding eigen values and eigen vector of a
general 3x3 matrix.
I am rephrasing the same as follows:

Is there any available methods in vtk to find the eigen values and eogen
vectors of a non-symmetrical
matrix?

I noticed that, vtkMath:Jacobi(..,...,...) works only for a symmetrical 3x3
matrix.

pl. send me suggestions on how to do this.

Thanks in advance for help
-Kiran
 





From Peter.Vanroose@esat.kuleuven.ac.be  Tue Aug 21 11:16:01 2001
From: Peter.Vanroose@esat.kuleuven.ac.be (Peter.Vanroose@esat.kuleuven.ac.be)
Date: Tue, 21 Aug 2001 12:16:01 +0200 (MET DST)
Subject: [vtkusers] Re: How to get Eigen values and Eigen vectors ?
Message-ID: <200108211016.MAA02578@caravaggio.esat.kuleuven.ac.be>

P.Kiran@geind.ge.com wrote:
> I want to do eigen decompostion for a matrix (of order 3x3) to extract the
> principal axes.

The `best' eigenvalue/eigenvector algorithm for general square matrices
is the "RG" algorithm of EISPACK (netlib).  It is an "established" and
well-tested implementation, dating back from 1983 (!) and it is freeware.

There is a c++ wrapper for this algorithm in vnl (part of vxl), namely in
vnl/algo/vnl_real_eigensystem.{h,cxx}, see
http://www.esat.kuleuven.ac.be/~targetjr/vxl/class_vnl_real_eigensystem.html

(And see vnl/tests/test_real_eigensystem.cxx for an example use.)

vxl and vtk can easily be used together.


--                  Peter Vanroose
                    Electrotechnical Department (ESAT/PSI)
                    K.U.Leuven, Belgium.
                    Peter.Vanroose@esat.kuleuven.ac.be


From dshamoni@science.uva.nl  Tue Aug 21 13:12:28 2001
From: dshamoni@science.uva.nl (Denis Shamonin)
Date: Tue, 21 Aug 2001 14:12:28 +0200
Subject: [vtkusers] Vtk and netCDF(network Common Data Form) data format - vtkNetCDFReader.
Message-ID: <3B82502C.381D73B9@science.uva.nl>

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vtkNetCDFReader

NetCDF (network Common Data Form) is an interface for array-oriented
data access
and a vtkNetCDFReader that provides an implementation of the interface.

vtkNetCDFReader - is a source object that reads netCDF files,
vtkNetCDFReader creates structured point datasets.

Read more about it on:
http://carol.wins.uva.nl/~dshamoni/vtkNetCDFReader/

Denis Shamonin.
University of Amsterdam,
Kruislaan 403, 1098 SJ Amsterdam, the Netherlands.

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vtkNetCDFReader

NetCDF (network Common Data Form) is an interface for array-oriented
data access

and a vtkNetCDFReader that provides an implementation of the
interface.

vtkNetCDFReader - is a source object that reads netCDF files,
vtkNetCDFReader creates structured point datasets.

Read more about it on:

http://carol.wins.uva.nl/~dshamoni/vtkNetCDFReader/

Denis Shamonin.

University of Amsterdam,

Kruislaan 403, 1098 SJ Amsterdam, the Netherlands.

--------------73FD8CF9A06FEACCE978F211--



From dshamoni@science.uva.nl  Tue Aug 21 15:02:32 2001
From: dshamoni@science.uva.nl (Denis Shamonin)
Date: Tue, 21 Aug 2001 16:02:32 +0200
Subject: [vtkusers] Vtk and netCDF(network Common Data Form) data format -
 vtkNetCDFReader.
Message-ID: <3B8269F7.35EED99E@science.uva.nl>

> Do you intend to contribute your vtkNetCDFReader to vtk?

I think, yes.

Denis Shamonin.
University of Amsterdam,
Kruislaan 403, 1098 SJ Amsterdam, the Netherlands.





From Ron.Jerome@nrc.ca  Tue Aug 21 15:17:39 2001
From: Ron.Jerome@nrc.ca (Jerome, Ron)
Date: Tue, 21 Aug 2001 10:17:39 -0400
Subject: [vtkusers] VTK and VRML C++ examples
Message-ID: <9258C238472FD411AA860004AC369AF901CCF3D2@nrcmrdex1.imsb.nrc.ca>

Try something like this...

		vtkVRMLExporter *VRML = vtkVRMLExporter::New();
		VRML->SetInput(this->RenderWindow);
		VRML->SetFileName(test.wrl);
		VRML->Write();
		VRML->Delete();

Ron Jerome
Institute for Chemical Process and 
Environmental Technology
National Research Council Canada
613-993-5346


>-----Original Message-----
>From: leung@arlut.utexas.edu [mailto:leung@arlut.utexas.edu]
>Sent: Monday, August 20, 2001 5:51 PM
>To: vtkusers@public.kitware.com
>Subject: [vtkusers] VTK and VRML C++ examples
>
>
>Hi,
>
>I was wondering if someone has some examples of C++ code that 
>allows one to
>export to a file in VRML (.wml).  Thanks.
>
>Al
>
>
>_______________________________________________
>This is the private VTK discussion list. 
>Please keep messages on-topic. Check the FAQ at: 

Follow this link to subscribe/unsubscribe:
http://public.kitware.com/mailman/listinfo/vtkusers


From inoue@cs.queensu.ca  Tue Aug 21 21:09:57 2001
From: inoue@cs.queensu.ca (Jiro Inoue)
Date: Tue, 21 Aug 2001 16:09:57 -0400 (EDT)
Subject: [vtkusers] vtkObject and Observers
Message-ID: 

Hi,
I'm trying to use observers on vtkObjects in order to implement a 
testing suite for my vtk applications, but having some problems with the  
automatic deletion of vtkCommands in the vtkObserver destructor. This is a
bit disconcerting since I the vtkCommand being deleted is created
elsewhere with a New(). It would also be very useful to me if the
vtkCommand would persists beyond the lifetime of a watched object.  So, my
question is: Is there a reason why the vtkCommand is being deleted in
vtkObserver, and could this be changed so that it is not deleted?

Thanks,
Jiro



From estewart@vni.com  Tue Aug 21 21:26:10 2001
From: estewart@vni.com (Ed Stewart)
Date: Tue, 21 Aug 2001 14:26:10 -0600
Subject: [vtkusers] Tcl sockets with vtk Binary data
Message-ID: 

Greetings,

I'm using a socket connection to get data to a Tcl shell which processes vtk
commands. When constructing ASCII data to send, I have been substituting VT
("\v") where the byte stream needs LF ("\n") in my output stream, appending
a \n at the end of everything to terminate the socket connection. Then on
the tcl side, I just look for \v chars to parse the packet type, variable
names, etc. This works like a charm.

I'm trying to move to BINARY now but have run into problems with LF bytes
that show up in the data stream. Once a LF is sent, the socket connection is
reset (I get a "bgerrer"). I can still use the \v to parse the keywords, but
I need a way to get Tcl to stop listening for LF bytes until the very end.

I've been looking and looking and can't find anything. I've tried using
fconfigure with "-translation binary" but this just prevents translation, it
doesn't ignore LFs. Any ideas?

Thanks,
-ed


From david.pont@forestresearch.co.nz  Tue Aug 21 21:55:21 2001
From: david.pont@forestresearch.co.nz (David Pont)
Date: Wed, 22 Aug 2001 08:55:21 +1200
Subject: [vtkusers] (no subject)
Message-ID: 

Hi, I get the following warning when reading a TIFF file:

Warning: In \vtk\imaging\vtkTIFFReader.cxx, line 319
vtkTIFFReader (01204504):  vtkTIFFReader only supports one strip!

I took a quick look in the code but it is not clear to me what this means. 
How do I sooth the TIFFReader?

  Dave Pont

_________________________________________________________________
Get your FREE download of MSN Explorer at http://explorer.msn.com/intl.asp



From bernardo@OCF.Berkeley.EDU  Tue Aug 21 21:56:15 2001
From: bernardo@OCF.Berkeley.EDU (Luis M Bernardo)
Date: Tue, 21 Aug 2001 13:56:15 -0700 (PDT)
Subject: [vtkusers] set radius of sphere inside actor
Message-ID: 


Hello,
I would like to know whether it is possible to change the radius of a
sphere after we put the sphere "inside" the actor. Something like this:

vtkActor actor* = vtkActor::New();
vtkPolyDataMapper mapper* = vtkPolyDataMapper::New();
actor->SetMapper(mapper);
vtkSphereSource sphere* = vtkSphereSource::New();
mapper-SetInput(sphere->GetOutput());

I thought about starting like this:
vtkPolyDataMapper* m = (vtkPolyDataMapper*) actor->GetMapper();
vtkPolyData* d = m->GetInput();

but I don't knonw what to do next... this boils down to re-construct a
vtkSphereSource from its vtkPolyData, I think.

Thanks,
Luis





From amy.henderson@kitware.com  Tue Aug 21 22:01:04 2001
From: amy.henderson@kitware.com (Amy Henderson)
Date: Tue, 21 Aug 2001 17:01:04 -0400
Subject: [vtkusers] set radius of sphere inside actor
In-Reply-To: 
Message-ID: <4.3.2.7.2.20010821165556.01f2bdb0@pop.nycap.rr.com>

At 01:56 PM 8/21/2001 -0700, Luis M Bernardo wrote:


>Hello,
>I would like to know whether it is possible to change the radius of a
>sphere after we put the sphere "inside" the actor. Something like this:

Yes, it is possible.

>vtkActor actor* = vtkActor::New();
>vtkPolyDataMapper mapper* = vtkPolyDataMapper::New();
>actor->SetMapper(mapper);
>vtkSphereSource sphere* = vtkSphereSource::New();
>mapper-SetInput(sphere->GetOutput());
>
>I thought about starting like this:
>vtkPolyDataMapper* m = (vtkPolyDataMapper*) actor->GetMapper();
>vtkPolyData* d = m->GetInput();
>
>but I don't knonw what to do next... this boils down to re-construct a
>vtkSphereSource from its vtkPolyData, I think.

If you haven't called sphere->Delete() yet, you can just call 
sphere->SetRadius(newRadius).  Otherwise, call m->GetInput()->GetSource(); 
cast it to a vtkSphereSource; and then call SetRadius on that.

- Amy

>Thanks,
>Luis
>
>
>
>
>_______________________________________________
>This is the private VTK discussion list.
>Please keep messages on-topic. Check the FAQ at: 
>
>Follow this link to subscribe/unsubscribe:
>http://public.kitware.com/mailman/listinfo/vtkusers



From bernardo@OCF.Berkeley.EDU  Tue Aug 21 22:41:07 2001
From: bernardo@OCF.Berkeley.EDU (Luis M Bernardo)
Date: Tue, 21 Aug 2001 14:41:07 -0700 (PDT)
Subject: [vtkusers] set radius of sphere inside actor
In-Reply-To: <4.3.2.7.2.20010821165556.01f2bdb0@pop.nycap.rr.com>
Message-ID: 


On Tue, 21 Aug 2001, Amy Henderson wrote:

> At 01:56 PM 8/21/2001 -0700, Luis M Bernardo wrote:
>
>
> >Hello,
> >I would like to know whether it is possible to change the radius of a
> >sphere after we put the sphere "inside" the actor. Something like this:
>
> Yes, it is possible.
>
> >vtkActor actor* = vtkActor::New();
> >vtkPolyDataMapper mapper* = vtkPolyDataMapper::New();
> >actor->SetMapper(mapper);
> >vtkSphereSource sphere* = vtkSphereSource::New();
> >mapper-SetInput(sphere->GetOutput());
> >
> >I thought about starting like this:
> >vtkPolyDataMapper* m = (vtkPolyDataMapper*) actor->GetMapper();
> >vtkPolyData* d = m->GetInput();
> >
> >but I don't knonw what to do next... this boils down to re-construct a
> >vtkSphereSource from its vtkPolyData, I think.
>
> If you haven't called sphere->Delete() yet, you can just call
> sphere->SetRadius(newRadius).  Otherwise, call m->GetInput()->GetSource();
> cast it to a vtkSphereSource; and then call SetRadius on that.
>

The second suggestion does it. I was looking for something like that but
in my search of the man pages I failed to go all the way up the hierarchy
to vtkObject to find the GetSource() method. Thanks, that answers my question.

Luis

> - Amy
>
> >Thanks,
> >Luis
> >
> >
> >
> >
> >_______________________________________________
> >This is the private VTK discussion list.
> >Please keep messages on-topic. Check the FAQ at:
> >
> >Follow this link to subscribe/unsubscribe:
> >http://public.kitware.com/mailman/listinfo/vtkusers
>



From jmoore@qn.net  Tue Aug 21 23:31:26 2001
From: jmoore@qn.net (James C. Moore)
Date: Tue, 21 Aug 2001 18:31:26 -0400
Subject: [vtkusers] interactor ->good render,  non-interactive render->poor quality
Message-ID: <200108212231.SAA16083@ServerD.QN.Net>

I've scoured the documentation (except the source) and have yet to resolve 
this problem which has puzzled and now plagues me.  If there is a simple 
answer, I would love to know it:

When rendering a 3-d polydata scene, if the camera is controlled with the 
interactor, the renders all look proper.  If I write a script to move the 
camera through the exact same path, the faces are not rendered properly.
They appear to flicker as if the lighting is not being calculated properly 
and sometimes the faces appear to disappear.  One touch from the interactor 
and they re-appear, properly rendered as before.   I'm using the default 
light,camera, interactor, and only setting the opacity of the objects (set 
to 1.0 for the test).

I am using on vtk3.2 on Windoze and Linux.   I'm not sure if it does this 
on LInux, but it is PRONOUNCED in windows.  

Any advice would appreciated.  Send address for cash reward...  (except for 
Will, because this is probably his fault  :))

Jim 
--
James C. Moore, Ph.D.



From jnorris@mcs.anl.gov  Tue Aug 21 23:32:01 2001
From: jnorris@mcs.anl.gov (Johnny Norris)
Date: Tue, 21 Aug 2001 17:32:01 -0500
Subject: [vtkusers] Subtracting polydata
Message-ID: <20010821173201.A19490@lava.mcs.anl.gov>

--IS0zKkzwUGydFO0o
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline

Hi,

I'm trying to subtract vtkPolyData B from vtkPolyData A to create
vtkPolyData C; that is, C will contain all cells in A that are not also in B.
To say that I'm having a little trouble with this would be an understatement.

Right now I have a routine that, for each cell X in B, it searches for points
in A within a certain tolerance of the points in X.  Then it calls
A->GetCellNeighbors() to find all the cells in A that use these points.
Finally, for each cell Y returned by GetCellNeighbors(), it makes sure that
X and Y are the same cell type, have the same number of points, and that the
bounds of Y fall completely within the bounds of B.  If all of these tests
pass, then I call A->DeleteCell() to delete this cell.

Anyway, it isn't working well.  Sometimes polygons are subtracted, and
sometimes they aren't.  I'm hoping that someone out there has already done
something like this, and is willing to share their code with me.

Here's my SubtractPolyData() routine, in case anyone can see something
obviously wrong with it.  ds is the polydata I subtracting from (A), locator
is a point locator initialized with ds (using SetDataSet() and
BuildLocator()), and del is the polydata I'm subtracting out (B).

Any help would be appreciated,
John
-- 
John Norris
Research Programmer
Center for Simulation of Advanced Rockets
http://www.uiuc.edu/ph/www/jnorris

--IS0zKkzwUGydFO0o
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment; filename=code

static void SubtractPolyData(vtkPolyData *ds, vtkPointLocator *locator,
                             vtkPolyData *del)
{
   vtkPoints *pts = ds->GetPoints();
   vtkPoints *dPts = del->GetPoints();
   vtkCell *cell;
   vtkIdList *ids = vtkIdList::New();
   vtkIdList *ptIds = vtkIdList::New();
   vtkIdList *dPtIds = vtkIdList::New();
   vtkIdList *cellIds = vtkIdList::New();
   vtkIdType dCellId, numDCells = del->GetNumberOfCells(), dPtId, numDPts;
   vtkIdType cellId, ptId, numPts, type, dType;
   float dP[3], radius = locator->GetTolerance();
   float dBounds[6], cBounds[6];
   int i, j, found;

   // Stretch the bounds by the given tolerance.
   del->GetBounds(dBounds);
   dBounds[0] -= radius;
   dBounds[1] += radius;
   dBounds[2] -= radius;
   dBounds[3] += radius;
   dBounds[4] -= radius;
   dBounds[5] += radius;

   for (dCellId=0; dCellIdGetCellPoints(dCellId, dPtIds);
      numDPts = dPtIds->GetNumberOfIds();
      ptIds->Initialize();
      ptIds->SetNumberOfIds(numDPts);
      found = 1;
      for (i=0; iGetId(i);
         dPts->GetPoint(dPtId, dP);
         locator->FindPointsWithinRadius(radius, dP, ids);
         numPts = ids->GetNumberOfIds();
         if (numPts == 0) {
            found = 0;
            break;
         }
         locator->FindClosestNPoints(numPts, dP, ids);
         for (j=0; jGetId(j);
            if (ptIds->IsId(ptId) == -1) {
               ptIds->SetId(i, ptId);
               break;
            }
         }
         if (j == numPts) {
            found = 0;
            break;
         }
      }

      if (found) {
         dType = del->GetCellType(dCellId);
         ds->GetCellNeighbors(-1, ptIds, cellIds);
         for (i=0; iGetNumberOfIds(); ++i) {
            cellId = cellIds->GetId(i);
            cell = ds->GetCell(cellId);
            cell->GetBounds(cBounds);
            if (dType == ds->GetCellType(cellId)
                && cell->GetNumberOfPoints() == numDPts
                && IsContainedIn(cBounds, dBounds)) {
               continue;
            }
            ds->DeleteCell(cellId);
         }
      }
   }

   cellIds->Delete();
   dPtIds->Delete();
   ptIds->Delete();
   ids->Delete();
}

inline int IsContainedIn(float *little, float *big)
{
   int i;
   for (i=0; i<6; i+=2)
      if (little[i] < big[i] || little[i+1] > big[i+1])
         return 0;

   return 1;
}

--IS0zKkzwUGydFO0o--


From pushkare@students.uiuc.edu  Wed Aug 22 01:59:59 2001
From: pushkare@students.uiuc.edu (Gala'Vi and Liss @ Mainframe Country)
Date: Tue, 21 Aug 2001 19:59:59 -0500 (CDT)
Subject: [vtkusers] capping off an isosurface
Message-ID: 

Hi,

I have a question about capping off an isosurface. I have an image, I
generate a contour from that image and I want to turn that contour into a
flat polygon (or a 3D object). I use the vtkLinearExtrusionFilter and set
Capping to ON. But I'm not seeing the caps! It does extrude the contour
up, but doesn't cap. I've tried vtkClipPolyData also and that didn't do
anything either, vtkCutter didn't work either.

Did anyone ever got that to work? The only message about this problem that
I found in the archives dated back to 1999.

Thanks.

-- Gala

//***********************************************
  -- There is always a way,
        you just have to find it.
              (B.Hambly "Children Of The Jedi")
//***********************************************



From pushkare@students.uiuc.edu  Wed Aug 22 02:58:30 2001
From: pushkare@students.uiuc.edu (Gala'Vi and Liss @ Mainframe Country)
Date: Tue, 21 Aug 2001 20:58:30 -0500 (CDT)
Subject: [vtkusers] capping off an isosurface (cont)
Message-ID: 

I did look at the cutCow.tcl and translated the code to C++ (don't have
tcl). That's the code that I'm currently using. It almost does it, almost
completes the caps and then says that triangulation failed! At some point
all of a sudden it starts connecting the edge of the top cap to the
opposite edge of the bottom cap and after a while errors out!

-- Gala

//***********************************************
  -- There is always a way,
        you just have to find it.
              (B.Hambly "Children Of The Jedi")
//***********************************************



From sabelka@iue.tuwien.ac.at  Wed Aug 22 08:05:19 2001
From: sabelka@iue.tuwien.ac.at (Rainer Sabelka)
Date: Wed, 22 Aug 2001 09:05:19 +0200
Subject: [vtkusers] interactor ->good render,  non-interactive render->poor
 quality
References: <200108212231.SAA16083@ServerD.QN.Net>
Message-ID: <3B8359AF.48FBCC0B@iue.tuwien.ac.at>

"James C. Moore" wrote:

> When rendering a 3-d polydata scene, if the camera is controlled with the
> interactor, the renders all look proper.  If I write a script to move the
> camera through the exact same path, the faces are not rendered properly.
> They appear to flicker as if the lighting is not being calculated properly
> and sometimes the faces appear to disappear.  One touch from the interactor
> and they re-appear, properly rendered as before.   I'm using the default
> light,camera, interactor, and only setting the opacity of the objects (set
> to 1.0 for the test).

The default setting for the interactor is to reposition also the lights as the camera moves.
You can turn this off (interactor LightFollowCameraOff) to check if this is the reason for you
problem.

Regards,
Rainer


--
 Rainer Sabelka                     | Institute for Microelectronics
 phone:  +43 1 58801-36029          | Technical University Vienna
 fax:    +43 1 58801-36099          | Gusshausstrasse 27-29/E360
 e-mail: sabelka@iue.tuwien.ac.at   | A-1040 Vienna, Austria/Europe





From will.schroeder@kitware.com  Wed Aug 22 12:29:16 2001
From: will.schroeder@kitware.com (Will Schroeder)
Date: Wed, 22 Aug 2001 07:29:16 -0400
Subject: [vtkusers] capping off an isosurface (cont)
In-Reply-To: 
Message-ID: <5.0.2.1.0.20010822072505.028f9598@pop.nycap.rr.com>

Hi Gala-

The current triangulation code is quite robust. What version of vtk are you 
running? If vtk3.2 or higher, please send me the polyline data that forms 
the boundary of the polygon that is failing. Also, make sure that the 
polygon is defined by n points, where point "0" and point "n-1" are not 
duplicates. Duplicate begin and end points will cause the problem.

Will


At 08:58 PM 8/21/2001 -0500, Gala'Vi and Liss @ Mainframe Country wrote:

>I did look at the cutCow.tcl and translated the code to C++ (don't have
>tcl). That's the code that I'm currently using. It almost does it, almost
>completes the caps and then says that triangulation failed! At some point
>all of a sudden it starts connecting the edge of the top cap to the
>opposite edge of the bottom cap and after a while errors out!
>
>-- Gala



From inoue@cs.queensu.ca  Wed Aug 22 15:21:33 2001
From: inoue@cs.queensu.ca (Jiro Inoue)
Date: Wed, 22 Aug 2001 10:21:33 -0400 (EDT)
Subject: [vtkusers] interactor ->good render,  non-interactive render->poor quality
In-Reply-To: <200108212231.SAA16083@ServerD.QN.Net>
Message-ID: 

For the faces disappearing problem, try resetting the clipping range (call
Renderer->ResetCameraClippingRange()) after moving the camera.



On Tue, 21 Aug 2001, James C. Moore wrote:

> Date: Tue, 21 Aug 2001 18:31:26 -0400
> From: "James C. Moore" 
> To: vtkusers@public.kitware.com
> Subject: [vtkusers] interactor ->good render,  non-interactive render->poor quality
> 
> I've scoured the documentation (except the source) and have yet to resolve 
> this problem which has puzzled and now plagues me.  If there is a simple 
> answer, I would love to know it:
> 
> When rendering a 3-d polydata scene, if the camera is controlled with the 
> interactor, the renders all look proper.  If I write a script to move the 
> camera through the exact same path, the faces are not rendered properly.
> They appear to flicker as if the lighting is not being calculated properly 
> and sometimes the faces appear to disappear.  One touch from the interactor 
> and they re-appear, properly rendered as before.   I'm using the default 
> light,camera, interactor, and only setting the opacity of the objects (set 
> to 1.0 for the test).
> 
> I am using on vtk3.2 on Windoze and Linux.   I'm not sure if it does this 
> on LInux, but it is PRONOUNCED in windows.  
> 
> Any advice would appreciated.  Send address for cash reward...  (except for 
> Will, because this is probably his fault  :))
> 
> Jim 
> --
> James C. Moore, Ph.D.
> 
> 
> _______________________________________________
> This is the private VTK discussion list. 
> Please keep messages on-topic. Check the FAQ at: 
> Follow this link to subscribe/unsubscribe:
> http://public.kitware.com/mailman/listinfo/vtkusers
> 



From 8mak2@qlink.queensu.ca  Wed Aug 22 15:35:18 2001
From: 8mak2@qlink.queensu.ca (Marta Kersten)
Date: Wed, 22 Aug 2001 10:35:18 -0400
Subject: [vtkusers] Re: [vtkusers]Rotations
References: 
Message-ID: <00c101c12b17$aa2b2140$dd020f82@cs.queensu.ca>

We are having some troubles to do with rotations and were wondering if
anyone else has come across them.  We have 3 sliders (X, Y and Z) and they
each rotate an actor around the X, Y or Z axis (about the actors center).
This
was all working fine when we did something like this:

   vtkMatrix4x4 *oldMatrix = vtkMatrix4x4::New();
  vtkTransform *transform = vtkTransform::New();

  float bounds[6];
  m_InteractionActor->GetBounds(bounds);

  //get position/center/origin from matrix does not work before interaction
  //therefore calculate the center of the bounding box implicitly
  m_ActorCenter[0] = ((bounds[0] + bounds[1])/2);
  m_ActorCenter[1] = ((bounds[2] + bounds[3])/2);
  m_ActorCenter[2] = ((bounds[4] + bounds[5])/2);

  m_InteractionActor->GetMatrix(oldMatrix);
  transform->SetMatrix(oldMatrix);

  transform->PostMultiply();



transform->Translate(-(m_ActorCenter[0]), -(m_ActorCenter[1]), -(m_ActorCent
er[2]));
  transform->RotateWXYZ(rotateValue, 1, 0, 0);
  transform->Translate(m_ActorCenter[0], m_ActorCenter[1],
m_ActorCenter[2]);

  m_InteractionActor->GetMatrix(oldMatrix);
  m_InteractionActor->SetPosition(transform->GetPosition());
  m_InteractionActor->SetOrientation(transform->GetOrientation());

  HighlightActor(m_InteractionActor);

  oldMatrix->Delete();
  transform->Delete();

The problem is that we have now been told that we must recompute the
rotation each time so that the rotation is done in the same order always.
So we did something like this:

 vtkMatrix4x4 *oldMatrix = vtkMatrix4x4::New();
  vtkTransform *transform = vtkTransform::New();

  float actOrient[3];
  m_InteractionActor->GetOrientation(actOrient);

  float bounds[6];
  m_InteractionActor->GetBounds(bounds);

  //get position/center/origin from matrix does not work before interaction
  //therefore calculate the center of the bounding box implicitly
  m_ActorCenter[0] = ((bounds[0] + bounds[1])/2.0);
  m_ActorCenter[1] = ((bounds[2] + bounds[3])/2.0);
  m_ActorCenter[2] = ((bounds[4] + bounds[5])/2.0);

  m_InteractionActor->GetMatrix(oldMatrix);
  transform->SetMatrix(oldMatrix);

  transform->PostMultiply();

  //translate to world origin


transform->Translate(-(m_ActorCenter[0]), -(m_ActorCenter[1]), -(m_ActorCent
er[2]));

  //Rotate to original orientation of the actor
  transform->RotateZ(-(actOrient[2]));
  transform->RotateX(-(actOrient[0]));
  transform->RotateY(-(actOrient[1]));

  //Rotate to new Rotations- all rotations done in the order Y, X, Z
  transform->RotateY(Y);
  transform->RotateX(m_ActRotateX);
  transform->RotateZ(m_ActRotateZ);

  //translate back to last position of actor
  transform->Translate(m_ActorCenter[0], m_ActorCenter[1],
m_ActorCenter[2]);

  //set the new position and orientation back to the actor
  m_InteractionActor->GetMatrix(oldMatrix);
  m_InteractionActor->SetPosition(transform->GetPosition());
  m_InteractionActor->SetOrientation(transform->GetOrientation());

  HighlightActor(m_InteractionActor);

  oldMatrix->Delete();
  transform->Delete();


This seems to work for Z and maybe Y to but it definitely does not work for
X.  Our solution then was to forget about using the vtkTransform and just
compute the matrices ourselves and stuff them back into the actor by using
SetUserMatrix.  However, if we do this it seems GetOrientation and
GetPosition do not get updated, which is a very big problem for us.   Does
anyone have any suggestions, or has anyone come across any similar problems.

Thank you for any help you can give us,

Marta




From ejml@iespana.es  Wed Aug 22 17:52:34 2001
From: ejml@iespana.es (ejml@iespana.es)
Date: Wed, 22 Aug 2001 16:52:34 GMT
Subject: [vtkusers] transformation of coordinated
Message-ID: <200108221652.2223@lh00.opsion.fr>

Hello to all the users. I am a student of computer
engineering and in my project career end I am
building a 3D-digitizer. When representing this
objects, once the points have been taken using a
camera and a projector laser, I have used the
function vtkSurfaceReconstructionFilter, but alone it
reconstructs the object well when it is objects whose
points have their coordinates normalized in the range
[0,1]. I have this points measured in centimeters or
millimeters in a reference system which has the
origin in the center of the object, for what I will
have negative coordinates and bigger than 1. On the
other hand, I am supposing that the axis X is the
horizontal, the axis Y is the vertical and the axis Z
 is that of depth. I would need something that the
coordinates of my object digitized to normalized
coordinates transforms [0,1] to be able to represent
them by means of VTK. Does somebody know as making
it?.  

my code portion is the following one:

char cadAux[100];
FILE *fichPtos;
float x,y,z;
 
vtkRenderer *aren    = vtkRenderer::New();
vtkRenderWindow *renWin  = vtkRenderWindow::New();
renWin->AddRenderer(aren);
vtkRenderWindowInteractor *iren =
vtkRenderWindowInteractor::New();
iren->SetRenderWindow(renWin);
 


vtkPoints *Puntos = vtkPoints::New();
 
fichPtos=fopen("mechpart.4102.pts","r");
if(fichPtos!=NULL)
{
 while(!feof(fichPtos))
 {
  fgets(cadAux,100,fichPtos);
  if(cadAux[0]=='p')  
  {
   sscanf(cadAux,"p %f %f %f\n",&x,&y,&z); 
   Puntos->InsertNextPoint(x,y,z);
  }
 }
}
 
fclose(fichPtos);
vtkPolyData *source = vtkPolyData::New();
source->SetPoints(Puntos);

vtkSurfaceReconstructionFilter *surface =
vtkSurfaceReconstructionFilter::New();
surface->SetInput(source);
 
vtkContourFilter *isosurface =
vtkContourFilter::New();
isosurface->SetInput(surface->GetOutput());
isosurface->SetValue(0,0.0);

vtkPolyDataMapper *mapper = vtkPolyDataMapper::New();
mapper->SetInput(isosurface->GetOutput());
  
vtkActor *actor1 = vtkActor::New();
actor1->SetMapper(mapper);
actor1->GetProperty()->SetColor(0.6,0.8,0.7);
  
aren->AddActor(actor1);
renWin->Render();

// interact with data
iren->Start();
// Clean up
aren->Delete();
renWin->Delete();
iren->Delete();
mapper->Delete();
actor1->Delete();
 


  

Thank you.

 
______________________________________________________________________________
mensaje enviado desde http://www.iespana.es
emails (pop)-paginas web (espacio ilimitado)-agenda-favoritos (bookmarks)-foros -Chat




From wankuang@hotmail.com  Wed Aug 22 22:23:02 2001
From: wankuang@hotmail.com (wan kuang)
Date: Wed, 22 Aug 2001 14:23:02 -0700
Subject: [vtkusers] can I do this with vtk?
Message-ID: 

Hi, group

I am interested in knowing if it is possible to use vtk as a geometry 
fabrication libary for my finite difference/element simulation. For example, 
if I draw a couple of basic geometries (like circle, sphere, box,...) using 
vtk classes in either 2-D or 3-D, could I be able to get information at 
uniform or rectilinear grid points (which will be used for simulation 
later)? vtk has a lot of basic geometry classes and interpolation methods 
that would save my time.

BTW, could vtk be compiled with KCC4.0e under linux7.1?

_________________________________________________________________
Get your FREE download of MSN Explorer at http://explorer.msn.com/intl.asp



From lavoie@mcs.anl.gov  Wed Aug 22 22:32:56 2001
From: lavoie@mcs.anl.gov (Tony Lavoie)
Date: Wed, 22 Aug 2001 16:32:56 -0500 (CDT)
Subject: [vtkusers] Artifact from Mesa?
Message-ID: 

Greetings!

I've had an interesting artifact appear in the medical examples of vtk3.2
when I built it against Mesa 3.5 on Linux. A strip of polys under the nose
is darker, but not quite black. it's that way on both sides of the
isosurface. This artifact doesn't (seem) to appear anywhere else on that
model. And it doesn't appear anywhere at all with GL.

Has anyone else encountered this? Any other investigation found a
cause/solution?

-Tony



From paul.welton@sympatico.ca  Thu Aug 23 00:59:09 2001
From: paul.welton@sympatico.ca (Paul Welton)
Date: Wed, 22 Aug 2001 19:59:09 -0400
Subject: [vtkusers] 3D program
References: <83533170.20010821092033@medres.ch>
Message-ID: <3B84474D.FE0E99F8@sympatico.ca>

Anner Adrian wrote:

> Hello ,
>
> I'm looking for a 3D program (like 3D Studio MAX, Light Wave 3D,...)
> to work together with vtk. Does anybody work with a 3D program in
> combination with vtk. what program can you recommend? I also thinking
> about a small animation which I want make in the progam and show it in
> a vtk application.

I have actually been working on a program resembling your description, although I have
initially used a pure software rendering graphics toolkit (TSIPP, by Mark Diekhans). However,
I want to exploit the hardware acceleration that Open GL provides, and was thinking of using
Vtk as an interface to it. I put out a posting on this (6th August) but had no replies. In the
meantime, I had greate difficulty in building Vtk, and found an alternative package, TkOGL, by
Claudio Esperaca which is very small and easy to build, and provides the access to OpenGL from
Tcl that I need. So I am tending towards forgetting Vtk for the present. If you were
interested in the program however,  it can be downloaded from:

http://www.neosoft.com/tcl/ftparchive/sorted/graphics/TSIPPwb/1.4
http://www.neosoft.com/tcl/ftparchive/sorted/graphics/TSIPPwb/1.4s

You will find HTML documentation, and all binaries necessary to run on Linux. The
"supplementary" download contains extra examples which could not be contained in the main file
due to size limitations on this repository.

A presentation on the TSIPP Workbench was made at the O'Reilly Open Source Convention in San
Diago on 26th July.  You can download the
presentation slides (Star Office 5.2) and the paper itself (PDF) from:

ftp://ftp.oreilly.com/pub/conference/os2001/welton_072601.sdd
ftp://ftp.oreilly.com/pub/conference/os2001/tcl_papers/welton_tcl2001_J.pdf

The motivation for creating this tool is that while there are many packages for rendering and
processing 3D images, support for creating 3D drawings and animating them interactively is
limited. The tool also aims to create new Tk widgets through drawing which appear as 3D scenes
and represent information, for example the state of an industrial process; hence the projects
sub-title, "Working Widgets Without Code".



From damianm@eram.esi.com.au  Thu Aug 23 10:21:49 2001
From: damianm@eram.esi.com.au (Damian McGuckin)
Date: Thu, 23 Aug 2001 19:21:49 +1000 (EST)
Subject: [vtkusers] vtkOpenGLActor.cxx with HP-UX 11.0 & OpenGL
In-Reply-To: <14874.48869.341530.581710@monster.linux.in>
Message-ID: 

We are having problems compiling vtkOpenGLActor.cxx on HP-UX 11.0 with
g++.  There is a problem because __thread, which is mentioned in the HP
OpenGL area (/opt/graphics/OpenGL/include/GL/glHpInt.h) is not defined
anywhere.  Note that this HP file has been automatically generated from
some other tool - don't you just love automation.

Has anybody else either seen this problem or know what __threads actually
is?

Thanks - Damian (McGuckin)

Pacific Engineering Systems International, 22/8 Campbell St, Artarmon NSW 2065
Ph:+61-2-99063377 .. Fx:+61-2-99063468   | unsolicited email not wanted here !
Views and opinions here are mine and not those of any past or present employer



From vtkEditor   Thu Aug 23 13:53:39 2001
From: vtkEditor  (vtkEditor )
Date: Thu, 23 Aug 2001 14:53:39 +0200
Subject: [vtkusers] Tcl_HashTable vtkInstanceLookup?
Message-ID: <3B84FCD3.D4ED3C1@esat.kuleuven.ac.be>

---  Forwarded by news2mail for vtkEditor  ---

Hi,

I want to do the following: make vtk objects from within a tcl-script
and access those vtk objects from a shared library written in C++ which
is loaded into tcl.
My question: How can i get a pointer to the vtk object which is
associated with a name in tcl.
Example: In tcl i do: "vtkSphere sphere". Now i want to get a pointer to
the vtkSphere object named "sphere".
I used to do the following:
In my C++ library i declare: "extern Tcl_HashTable vtkInstanceLookup;"
And to get a pointer to a tcl named object, i did:

    Tcl_HashEntry *entry =
Tcl_FindHashEntry(&vtkInstanceLookup,"sphere");
    if (entry == NULL)
{
        Tcl_AppendResult(interp, "no object named \"sphere\"", (char *)
NULL);
        return TCL_ERROR;
    }
    vtkActor *actor = (vtkActor *)Tcl_GetHashValue(entry);

But with vtk3.2 this doesn't work anymore. Can someone tell me what the
correct way is for doing this?

Thanx,
-- 
vtkEditor
email: vtkedit@esat.kuleuven.ac.be
site: http://www.esat.kuleuven.ac.be/~vtkedit


From vicmag@hotmail.com  Thu Aug 23 17:55:24 2001
From: vicmag@hotmail.com (victor marquez garcia)
Date: Thu, 23 Aug 2001 11:55:24 -0500
Subject: [vtkusers] write to BMP
Message-ID: 

Hello everybody

I have a vtkPolyDataMapper render and I want to write that image on a BMP 
format with the vtkBMPWriter, how can I do this?
The goal is to make an animation, there is a better way to achieve this?

Thanks in advance

Victor Marquez Garcia
ESCOM-IPN, México


_________________________________________________________________
Get your FREE download of MSN Explorer at http://explorer.msn.com/intl.asp



From Prabhu Ramachandran   Thu Aug 23 18:59:09 2001
From: Prabhu Ramachandran  (Prabhu Ramachandran)
Date: Thu, 23 Aug 2001 13:59:09 -0400
Subject: [vtkusers] write to BMP
In-Reply-To: 
References: 
Message-ID: <15237.17517.783514.703435@cyberwaveindia.com>

hi,

>>>>> "VMG" == victor marquez garcia  writes:

    VMG> Hello everybody I have a vtkPolyDataMapper render and I want
    VMG> to write that image on a BMP format with the vtkBMPWriter,

Use the vtkWindowToImageFilter and the vtkBMPWriter.  Something like
this:

w2if = vtkWindowToImageFilter()
w2if.SetInput(renwin)
ex = vtkBMPWriter()
ex.SetFileName(file_name)
ex.SetInput(w2if.GetOutput())
ex.Write()

    VMG> how can I do this?  The goal is to make an animation, there
    VMG> is a better way to achieve this?

Read this thread

http://public.kitware.com/pipermail/vtkusers/2001-March/005894.html

in particular read:

http://public.kitware.com/pipermail/vtkusers/2001-March/005907.html

prabhu


From weiguang@schrodinger.com  Thu Aug 23 20:55:11 2001
From: weiguang@schrodinger.com (Weiguang Guan)
Date: Thu, 23 Aug 2001 12:55:11 -0700 (PDT)
Subject: [vtkusers] vtkContourFilter outputs triangles?
In-Reply-To: 
Message-ID: 

Hi VTK users,

When a 3D volume data is fed into vtkContourFilter, the filter generate
iso-surface as output. My question is "is the generated iso-surface
in form of triangle mesh?" I notice there are cell array and point array.
Could the cell array contain a polygon with more than 3 vertices? 

Thanks,

Weiguang 

--
Weiguang Guan, Schrodinger Inc | Email: weiguang@schrodinger.com
Tel: 503-299-1150 ext. 128 (O) 




From vartan@Stanford.EDU  Fri Aug 24 00:08:49 2001
From: vartan@Stanford.EDU (Ryan Arthur Vartanian)
Date: Thu, 23 Aug 2001 16:08:49 -0700 (PDT)
Subject: [vtkusers] vtkPLOT3DReader troubles
Message-ID: 

Hello-

I am having trouble with vtkPLOT3DReader().

I have looked at the source code for the reader, and as far as I can tell
it does not take into account the bookends (or data record lengths) which
fortran puts at the end of each unformatted write statement.  I use plot3d
on a regular basis and my data files are organized as follows:

Data in file:                     Actual file contents:
                                             4
1      (number of grids)                     1
                                             4
                                             12
193                                          193
49     (Grid Dimensions)                     49
65                                           65
                                             12
                                             7376460
A bunch of single precision floats
follow which are the structured grid
coordinates.

It seems to me that the reader was written using some example files from
plot3d (bluntfin for example) and that for some reason the bookends have
been left out.  Is there a flag I can set so that the bookends are read
and my file is processed correctly, or is this something that has not been
included for some reason?

Any help would be appreciated.

Ryan

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

     "I don't mind Microsoft making money, I mind them
         having a bad operating system."
                              -Linus Torvalds June 13, 1999

Ryan Vartanian
Aeronautics/Astronautics PhD Student
vartan@leland.stanford.edu
------------------------------------------------------------




From tanguy.vincent@laposte.net  Fri Aug 24 09:58:32 2001
From: tanguy.vincent@laposte.net (Tanguy Vincent)
Date: Fri, 24 Aug 2001 10:58:32 +0200
Subject: [vtkusers] vtk and python...
Message-ID: <00d501c12c7a$f3a69f20$185b29d5@ausy.fr>

C'est un message de format MIME en plusieurs parties.

------=_NextPart_000_00D2_01C12C8B.B70DDD60
Content-Type: text/plain;
	charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable

Hello,

I'm a beginner in the use of vtk. I'd like to use vtk with python. It =
seems possible but I found tno exemples on the web.=20

Has somebody tried to use vtk and Python ? What is your experience ? =
Does somebody know web sites dealing with this subject ?

Tanguy


------=_NextPart_000_00D2_01C12C8B.B70DDD60
Content-Type: text/html;
	charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable









Hello,


 


I'm a beginner in the use of vtk. I'd =
like to use=20
vtk with python. It seems possible but I found tno exemples on the web.=20



 


Has somebody tried to use vtk and =
Python ? What is=20
your experience ? Does somebody know web sites dealing with this subject =

?


 


Tanguy


 


------=_NextPart_000_00D2_01C12C8B.B70DDD60--



From heiland@ncsa.uiuc.edu  Fri Aug 24 11:47:16 2001
From: heiland@ncsa.uiuc.edu (Randy Heiland)
Date: Fri, 24 Aug 2001 05:47:16 -0500
Subject: [vtkusers] vtk and python...
In-Reply-To: "Tanguy Vincent" 
 "[vtkusers] vtk and python..." (Aug 24, 10:58am)
References: <00d501c12c7a$f3a69f20$185b29d5@ausy.fr>
Message-ID: <1010824054716.ZM19478@kelgia.ncsa.uiuc.edu>

Tanguy,

If you download the vtk source distribution, you'll have tons of Python
examples:  vtk/{graphics,imaging,etc}/examplesPython

--Randy

On Aug 24, 10:58am, Tanguy Vincent wrote:
> Subject: [vtkusers] vtk and python...
>
> Hello,
>
> I'm a beginner in the use of vtk. I'd like to use vtk with python. It seems
possible but I found tno exemples on the web.
>
> Has somebody tried to use vtk and Python ? What is your experience ? Does
somebody know web sites dealing with this subject ?
>


From juerg-tschirren@uiowa.edu  Fri Aug 24 14:29:49 2001
From: juerg-tschirren@uiowa.edu (Juerg Tschirren)
Date: Fri, 24 Aug 2001 08:29:49 -0500 (CDT)
Subject: [vtkusers] vtk and python...
In-Reply-To: <00d501c12c7a$f3a69f20$185b29d5@ausy.fr>
Message-ID: 

vtk and Python work perfectly fine together. I am doing most of my vtk
stuff with Python.

  Get the VTK source distribution. All the example directories contain a
subdirectory *Python, e.g., vtk3.2/graphics/examplesPython or
vtk3.2/imaging/examplesPython. That should get you started. In fact you
will notice that there are only very little differences between vtk C++
and vtk Python code. It is very easy to translate from one language to
another.

  Make sure that you have the vtk Python libraries installed on your
system. Under Linux these are libVTKCommonPython.so,
libVTKContribPython.so, etc. Under Windows it's probably
libVTKCommonPython.dll, etc., but I am not sure about that.

  For getting these libraries, use the --with-python flag with ./configure
when you build vtk from source.

hope that helps

Juerg


On Fri, 24 Aug 2001, Tanguy Vincent wrote:

> Hello,
>
> I'm a beginner in the use of vtk. I'd like to use vtk with python. It seems possible but I found tno exemples on the web.
>
> Has somebody tried to use vtk and Python ? What is your experience ? Does somebody know web sites dealing with this subject ?
>
> Tanguy
>
>



From humphries@mail.utexas.edu  Fri Aug 24 17:07:54 2001
From: humphries@mail.utexas.edu (Julian Humphries)
Date: Fri, 24 Aug 2001 09:07:54 -0700
Subject: [vtkusers] Notes about VTK nightly and web site
References:  <15237.17517.783514.703435@cyberwaveindia.com>
Message-ID: <3B867BDA.E865DCE9@mail.utexas.edu>

There are a few minor problems on the web site relating to obtaining the
nightly version of VTK for Windows.

The web page for the nightly package says: "This contains a Windows 9x/NT dll
for vtk2.4." I assume this should say 3.2.

The link is to a copy of the file spelled "vtkNightlyCore.EXE" While such
a file exists, it is actually the nightly from August 6.  The current
nightly is spelled vtkNightlyCore.exe. 

The same ".EXE" and ".exe" combo exists for all of the various windows
packages.



Julian Humphries
University of Texas


From odonnell@ai.mit.edu  Fri Aug 24 12:44:34 2001
From: odonnell@ai.mit.edu (Lauren O'Donnell)
Date: Fri, 24 Aug 2001 07:44:34 -0400 (EDT)
Subject: [vtkusers] deriving a class from vtkMultipleInputOutputFilter
Message-ID: 

Does anyone have an example of a class derived from this one?

I am trying to do a single-input, variable number of outputs filter.
The superclass does not seem to allocate my outputs for me when for
example in the constructor of my class I do: this->SetNumberOfOutputs(num)

Should I need to allocate my own output volumes?

Thanks for any info!

Lauren O'Donnell


P.S. I am deriving a class from cvs version 1.3 of the .cxx and .h files
(the rest of my vtk code is release 3.2, yes this is odd but I am hoping 
ok).





From mcoletti@lychnobite.org  Fri Aug 24 17:07:29 2001
From: mcoletti@lychnobite.org (Mark Coletti)
Date: Fri, 24 Aug 2001 12:07:29 -0400
Subject: [vtkusers] Any plans to provide a Ruby API?
Message-ID: <200108241607.f7OG7Tx36296@laputa.lychnobite.org>

Python is a potent, object-oriented scripting language.  Ruby is yet
another object-oriented scripting language (c.f., www.ruby-lang.org).
Are there any plans for creating a VTK Ruby API as with Python?

Cheers!

Mark
-- 
Mark Coletti | mailto:mcoletti@lychnobite.org | http://www.lychnobite.org/
          My doctor says my blood type is C double-positive.



From wlorens1@nycap.rr.com  Fri Aug 24 17:58:27 2001
From: wlorens1@nycap.rr.com (Bill Lorensen)
Date: Fri, 24 Aug 2001 12:58:27 -0400
Subject: [vtkusers] vtkContourFilter outputs triangles?
In-Reply-To: 
References: 
Message-ID: <4.2.2.20010824125817.0164b110@pop.nycap.rr.com>

The mesh is all triangles.

At 12:55 PM 8/23/01 -0700, Weiguang Guan wrote:
>Hi VTK users,
>
>When a 3D volume data is fed into vtkContourFilter, the filter generate
>iso-surface as output. My question is "is the generated iso-surface
>in form of triangle mesh?" I notice there are cell array and point array.
>Could the cell array contain a polygon with more than 3 vertices? 
>
>Thanks,
>
>Weiguang 
>
>--
>Weiguang Guan, Schrodinger Inc | Email: weiguang@schrodinger.com
>Tel: 503-299-1150 ext. 128 (O) 
>
>
>
>_______________________________________________
>This is the private VTK discussion list. 
>Please keep messages on-topic. Check the FAQ at: 
>Follow this link to subscribe/unsubscribe:
>http://public.kitware.com/mailman/listinfo/vtkusers 




From krw@viz-solutions.com  Fri Aug 24 18:40:27 2001
From: krw@viz-solutions.com (Kevin Wright)
Date: Fri, 24 Aug 2001 10:40:27 -0700
Subject: [vtkusers] vtkPLOT3DReader troubles
References: 
Message-ID: <3B86918B.B2E5DFC3@viz-solutions.com>

> I am having trouble with vtkPLOT3DReader().
>
> I have looked at the source code for the reader, and as far as I can tell
> it does not take into account the bookends (or data record lengths) which
> fortran puts at the end of each unformatted write statement.  I use plot3d
> on a regular basis and my data files are organized as follows:

The format that you have for your files is Fortran Unformatted.  The format that the
Plot3DReader uses is straight Binary.  There is no way to get it to read fortran unformatted
without digging into the source code and making the changes yourself (I don't think).  I had to
hack together something quick to do it last year, and its really not that hard.  Just find the
execute routine and bracket all of the read commands with a read of a single integer on either
end.  I'm hoping to get some time to clean up what I did and send it into Kitware later this
year.

Kevin.



From dgobbi@irus.rri.ca  Fri Aug 24 18:52:29 2001
From: dgobbi@irus.rri.ca (David Gobbi)
Date: Fri, 24 Aug 2001 13:52:29 -0400 (EDT)
Subject: [vtkusers] Any plans to provide a Ruby API?
In-Reply-To: <200108241607.f7OG7Tx36296@laputa.lychnobite.org>
Message-ID: 

I've heard rumours that the Kitware is planning to completely
re-vamp the VTK wrapping process sometime in the future.  If
this rumour is accurate, then addition of new wrapper languages
will be easier after the new wrapping process is in place.

If the Ruby C-interface is similar to Python, and if Ruby supports
the same gamut of numerical types as Python, you might want to
try modifying the Python wrappers to work with Ruby.

 - David

--
  David Gobbi, MSc                       dgobbi@irus.rri.ca
  Advanced Imaging Research Group
  Robarts Research Institute, University of Western Ontario

On Fri, 24 Aug 2001, Mark Coletti wrote:

> Python is a potent, object-oriented scripting language.  Ruby is yet
> another object-oriented scripting language (c.f., www.ruby-lang.org).
> Are there any plans for creating a VTK Ruby API as with Python?
>
> Cheers!
>
> Mark
>



From dmpd@mcmail.com  Fri Aug 24 19:12:10 2001
From: dmpd@mcmail.com (D.M.P.Davies)
Date: Fri, 24 Aug 2001 19:12:10 +0100
Subject: [vtkusers] write to BMP
References: 
Message-ID: <3B8698F8.FEBB4FBB@mcmail.com>

--------------415BFCEDF4772F87BF4F495B
Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: 7bit

Victor,

I manage  to generate simple animated gifs by generating ppm's from a  tcl/tk wraparound  by
calling:


proc   Gen_PPM {name} {
puts "NAME=$name.ppm"
[Renderer(.backdrop.drawing) GetRenderWindow] Render
[Renderer(.backdrop.drawing) GetRenderWindow] SetFileName $name.ppm
[Renderer(.backdrop.drawing) GetRenderWindow] SaveImageAsPPM
}

where .backdrop.drawing is the vtkTkRenderWidget.

I then , from the set of ppm's , use a ppm2gifanim  executable which I got free from the net.
[Note: I'm in windows]

Further:

I use gifsicle (free from the net)  behind a tcl/tk editor ( which I wrote) to merge/delete/add
frames and adjust speens and transparent backrounds.

This works quite well for small animations. Further tk widgets and other vtkTkRenderWidgets can
be embedded in .backdrop.drawing.

Let me know if you want more information.

Dave Davies


victor marquez garcia wrote:

> Hello everybody
>
> I have a vtkPolyDataMapper render and I want to write that image on a BMP
> format with the vtkBMPWriter, how can I do this? .........

--------------415BFCEDF4772F87BF4F495B
Content-Type: text/html; charset=us-ascii
Content-Transfer-Encoding: 7bit



Victor,

I manage  to generate simple animated gifs by generating
ppm's from a  tcl/tk wraparound  by calling:

 

proc   Gen_PPM {name} {

puts "NAME=$name.ppm"

[Renderer(.backdrop.drawing) GetRenderWindow] Render

[Renderer(.backdrop.drawing) GetRenderWindow] SetFileName $name.ppm

[Renderer(.backdrop.drawing) GetRenderWindow] SaveImageAsPPM

}

where .backdrop.drawing is the vtkTkRenderWidget.

I then , from the set of ppm's , use a ppm2gifanim  executable
which I got free from the net.

[Note: I'm in windows]

Further:

I use gifsicle (free from the net)  behind a tcl/tk editor
( which I wrote) to merge/delete/add frames and adjust speens and transparent
backrounds.

This works quite well for small animations. Further tk widgets and other
vtkTkRenderWidgets can be embedded in .backdrop.drawing.

Let me know if you want more information.

Dave Davies

 

victor marquez garcia wrote:

Hello everybody

I have a vtkPolyDataMapper render and I want to write that image on
a BMP

format with the vtkBMPWriter, how can I do this? .........



--------------415BFCEDF4772F87BF4F495B--



From srfpala@earthlink.com  Sat Aug 25 00:56:45 2001
From: srfpala@earthlink.com (Robert F. Palank)
Date: Fri, 24 Aug 2001 18:56:45 -0500
Subject: [vtkusers] Visual C++ Examples
Message-ID: 

I can't seem to find the resource for a collection of c++ examples. 
 tcl  - yes, but no cpp.
TIA
   Bob Palank


From wbsmith@its.caltech.edu  Sat Aug 25 01:31:22 2001
From: wbsmith@its.caltech.edu (Bryan)
Date: Fri, 24 Aug 2001 17:31:22 -0700 (PDT)
Subject: [vtkusers] install?
Message-ID: 

I have tried twice to install the program (with or without Java support), and I
cannot get it to work.  Can someone please tell me what files I need from the
ftp site to complete the installation?  I downloaded and unzipped vtk.tar and I
also downloaded and installed the vtk32Core and vtk32Java executables.  When I
try to run the pcmaker program, I enter the information and then when I hit OK,
the program closes immediately without doing anything.  I have installed the
Borland C++ Builder 5 and I direct pcmaker to that compiler.  Also, I am running
jdk1.3.1

Thanks

Bryan Smith

Division of Biology
Caltech 216-76
Pasadena, CA, 91125
ph. (626) 395-2032

^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
The illusion that we are separate from one another
is an optical delusion of our consciousness.
				-Albert Einstein
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^



From pacook@blueyonder.co.uk  Sat Aug 25 15:46:12 2001
From: pacook@blueyonder.co.uk (Philip Cook)
Date: Sat, 25 Aug 2001 14:46:12 -0000
Subject: [vtkusers] Strange vtkPanel behaviour
Message-ID: <3B87BA34.18664.32F830C@localhost>

I have extended vtkPanel in one of my applications. The extension 
is an overridden mouseClicked(mouseEvent e) method: 

public void mouseClicked(mouseEvent e) {

  vtkPropPicker glyphPicker = new vtkPropPicker();
		
  int picked = glyphPicker.PickProp((double)e.getX(), 
rw.GetSize()[1] - (double)e.getY(), ren);
		
  // picked == 0 if picker did not pick an actor
  if (picked == 0) {
      super.mouseClicked(e);
      return;
  }
		
  vtkActor pickedActor = (vtkActor)glyphPicker.GetProp();
		
  int[] dataIndex = new int[3];
		
  try {
	 // This method finds the actor in a Hashtable and returns the    
      // associated index to the data from which the actor was 
created
      dataIndex = findGlyphFunctionIndex(pickedActor);
  }
  catch (GlyphNotFoundException ex) {
      System.out.println(ex.getMessage());
      return;
  }
		
  double[] glyphColour = pickedActor.GetProperty().GetColor();


  // This class extends java.awt.Frame and contains a vtkPanel.
 // It will create a new window and display an actor identical
 // to the one that was picked		
 // dataSet is a class variable that provides raw data for the
 // creation of glyphs
  VTKSingleGlyphImage popup = new 
VTKSingleGlyphImage(dataSet, dataIndex[0], dataIndex[1], 
dataIndex[2], glyphColour);	

}


When this method is called, some strange things happen. The new 
image always works the first time. However, on subsequent 
attempts the mouse click may cause Windows to freeze, pressing 
alt+ctrl+del causes a blue "System has become unstable" screen 
to appear.

Also, Sometimes the popup window appears OK, but the main 
window (where this extended panel is located) stops responding. 
Moving or clicking on the main window then causes it to go blank. 
Dragging the mouse over the blank window then causes the image 
that should be in the blank window to appear in the popup window! I 
can then rotate and zoom the image in the popup window by further 
clicks and drags on the blank window. Sometimes, minimising and 
then maximising the blank window will cause the image to come 
back where it should be.

I know VTK doesn't like actors, mappers etc being shared between 
windows, but I can't explain this behaviour because the renderers 
don't have anything to do with one another. The popup is a different 
class to the main image and each instance creates its own 
mappers, actors and renderers. None of them are static, so there 
shold be a separate mapper, actor etc for each instance of the 
popup window.

If I rotate or zoom the main window between picks, the problem 
doesn't seem to arise. I'm really baffled by this.

I am running Windows 98, VTK 3.2, and JDK 1.3.1. My graphics 
card is a Hercules Prophet II MX, with a GeForce II MX chipset. I've 
tried both Hercules and nVidia drivers, (v. 12.41) and the effect is 
the same.

Thanks for any help.


From zhou@isg.cs.uni-magdeburg.de  Sun Aug 26 15:44:25 2001
From: zhou@isg.cs.uni-magdeburg.de (Jianlong Zhou)
Date: Sun, 26 Aug 2001 16:44:25 +0200
Subject: [vtkusers] How to render semi-transparent effect using VTK
Message-ID: <3B892769.8436.73ACB2@localhost>

hi,all,
Does anyone know how to render semi-transparent effect using 
VTKß For example I want to render the medical data and want to 
render the skin semi-transparent, thus I can also see the interior of 
the data at the same time.
Does anyone give me some information about realizing this effect 
using VTK?

Thank you in adcance.

JL


From juerg-tschirren@uiowa.edu  Sun Aug 26 16:10:20 2001
From: juerg-tschirren@uiowa.edu (Juerg Tschirren)
Date: Sun, 26 Aug 2001 10:10:20 -0500 (CDT)
Subject: [vtkusers] How to render semi-transparent effect using VTK
In-Reply-To: <3B892769.8436.73ACB2@localhost>
Message-ID: 


vtkActor actor = vtkActor::New();
...
actor->GetProperty()->SetOpacity(0.1);



On Sun, 26 Aug 2001, Jianlong Zhou wrote:

> hi,all,
> Does anyone know how to render semi-transparent effect using
> VTKß For example I want to render the medical data and want to
> render the skin semi-transparent, thus I can also see the interior of
> the data at the same time.
> Does anyone give me some information about realizing this effect
> using VTK?
>
> Thank you in adcance.
>
> JL
>
> _______________________________________________
> This is the private VTK discussion list.
> Please keep messages on-topic. Check the FAQ at: 
> Follow this link to subscribe/unsubscribe:
> http://public.kitware.com/mailman/listinfo/vtkusers
>



From a.maclean@acfr.usyd.edu.au  Mon Aug 27 03:08:49 2001
From: a.maclean@acfr.usyd.edu.au (Andrew J. P. Maclean)
Date: Mon, 27 Aug 2001 12:08:49 +1000
Subject: [vtkusers] Number of Faces, Triangles and Edges.
Message-ID: <000301c12e9d$3667ccc0$84d24e81@acfr.usyd.edu.au>

This is a multi-part message in MIME format.

------=_NextPart_000_0004_01C12EF1.0813DCC0
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	charset="us-ascii"
Content-Transfer-Encoding: 7bit

When I render an image, how can I determine the number of triangles,
faces and edges that are used?
 
 

___________________________________________
Andrew J. P. Maclean


Postal:
Australian Centre for Field Robotics
The Rose Street Building J04
The University of Sydney  2006  NSW
AUSTRALIA

Room:
106

Phone:
+61 2 9351 3283

Fax:
+61 2 9351 7474

 
  http://www.acfr.usyd.edu.au/
___________________________________________
 

------=_NextPart_000_0004_01C12EF1.0813DCC0
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	charset="us-ascii"
Content-Transfer-Encoding: quoted-printable



























When I render an =
image, how
can I determine the number of triangles, faces and edges that are =
used?



 



 



___________________________________________

Andrew J. P. =
Maclean



 

  
  
Postal:

  		
  
  
Australia=
n
  Centre for Field Robotics

  The Rose Street Building J04

  The Universit=
y of Sydney  2006  NSW

  AUSTRALIA=


  		
 

 

  
  
Room:

  		
  
  
106<=
/o:p>

  		
 

 

  
  
Phone:

  		
  
  
+61 2 =
9351 3283

  		
 

 

  
  
Fax:=


  		
  
  
+61 2 =
9351 7474

  		
 

 

  
  
&nbs=
p;

  		
  
  
http://www.acfr.usyd.edu.a=
u/

  		
 





=
___________________________________________



 









------=_NextPart_000_0004_01C12EF1.0813DCC0--



From blue-mountain@etang.com  Mon Aug 27 04:25:24 2001
From: blue-mountain@etang.com (blue-mountain)
Date: Mon, 27 Aug 2001 11:25:24 +0800 (CST)
Subject: [vtkusers] =?gb2312?B?UmVwbHk6Y29uZmlybSA5MzQ1ODI=?=
Message-ID: <3B89BDA4.01112@mail-smtp2>

confirm 934582






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From Nithin.Nagaraj@geind.ge.com  Mon Aug 27 13:32:11 2001
From: Nithin.Nagaraj@geind.ge.com (Nagaraj, Nithin (CORP, GEITC))
Date: Mon, 27 Aug 2001 18:02:11 +0530
Subject: [vtkusers] help on VTK 3.1 and TCL
Message-ID: <1C82B8CC4567D51197A600508B62C1300139F73A@ban04xbindge.geind.ge.com>

Dear Sir,

	I am encountering some problems in installing VTK 3.1. I am able to
run pcmaker and get the vtktcl.dll and other dlls. But when i run the Wish
82 application and type "load vtktcl" i get this message:

"couldn't load file "vtktcl": invalid argument"

I have copied all the required dlls to the c:\winnt\system32 directory. My
operating system is Win 2000.

Kindly help me to tackle this error. I am a new user.

thanks