[vtkusers] vtkusers Digest, Vol 111, Issue 16
Bill Lorensen
bill.lorensen at gmail.com
Tue Jul 9 15:00:16 EDT 2013
The points and cells are generated in the for loops.
On Tue, Jul 9, 2013 at 2:43 PM, rahul indoria <rahulindoria5 at gmail.com>wrote:
> Hi,
> Can you explain me some portion of the code of this example (
> http://www.vtk.org/Wiki/VTK/Examples/Cxx/Visualization/CurvedReformation)?
>
> i need to ask the line by line documentation of this function, how these
> points and surface is formed?
>
>
> vtkSmartPointer<vtkPolyData> SweepLine (vtkPolyData *line,
> double direction[3],
> double distance,
> unsigned int cols)
>
> {
>
> unsigned int rows = line->GetNumberOfPoints();
>
> double spacing = distance / cols;
> vtkSmartPointer<vtkPolyData> surface =
> vtkSmartPointer<vtkPolyData>::New();
>
> // Generate the points
> cols++; // why this statement ?
> unsigned int numberOfPoints = rows * cols; // how these number points are generated
> unsigned int numberOfPolys = (rows - 1) * (cols - 1); // what is this???
>
>
> vtkSmartPointer<vtkPoints> points =
> vtkSmartPointer<vtkPoints>::New();
> points->Allocate(numberOfPoints);
> vtkSmartPointer<vtkCellArray> polys =
> vtkSmartPointer<vtkCellArray>::New();
> polys->Allocate(numberOfPolys*4);
>
> double x[3];
> unsigned int cnt = 0;
> for (unsigned int row = 0; row < rows; row++)
> {
> for (unsigned int col = 0; col < cols; col++)
> {
> double p[3];
> line->GetPoint(row, p);
> x[0] = p[0] + direction[0] * col * spacing;
> x[1] = p[1] + direction[1] * col * spacing;
> x[2] = p[2] + direction[2] * col * spacing;
> points->InsertPoint(cnt++, x);
> }
> }
> // Generate the quads
> vtkIdType pts[4];
> for (unsigned int row = 0; row < rows - 1; row++)
> {
> for (unsigned int col = 0; col < cols - 1; col++)
> {
> pts[0] = col + row * (cols);
> pts[1] = pts[0] + 1;
> pts[2] = pts[0] + cols + 1;
> pts[3] = pts[0] + cols;
> polys->InsertNextCell(4,pts);
> }
> }
> surface->SetPoints(points);
> surface->SetPolys(polys);
>
> return surface;}
>
>
>
>
> please reply as soon as possible
>
>
>
> On Tue, Jul 9, 2013 at 6:00 PM, <vtkusers-request at vtk.org> wrote:
>
>> Send vtkusers mailing list submissions to
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>>
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>> When replying, please edit your Subject line so it is more specific
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>>
>>
>> Today's Topics:
>>
>> 1. Re: Vtk 6.0 dotnet (David Cole)
>> 2. Re: Regarding example VTKimagereslicemapper (rahul indoria)
>> 3. FindCell method of vtkCellLocator (shinpei)
>> 4. Re: FindCell method of vtkCellLocator (Alex Malyushytskyy)
>> 5. VTK Stereo Rendering (mailagentrus)
>> 6. [vtkUsers] About Different RenderWindowInteractor (hongsongyang)
>> 7. using vtkGL2PSExporter in python [ under pythonXY() ]
>> (Gideon Valch)
>> 8. Re: Help with image planes example (Ruff)
>> 9. adding texture to a wavefront .obj file in vtk (Umer Rafi)
>> 10. Unexpected actor orientation results (divya)
>> 11. Re: FindCell method of vtkCellLocator (shinpei)
>> 12. VTK application running on Linux loads VNC server (Haroon Showgan)
>> 13. .RAW file (Massinissa Bandou)
>> 14. Re: .RAW file (Bill Lorensen)
>> 15. My point cloud data won't display in the renderer. (Ruff)
>>
>>
>> ----------------------------------------------------------------------
>>
>> Message: 1
>> Date: Mon, 8 Jul 2013 16:21:52 +0000
>> From: David Cole <dlrdave at aol.com>
>> Subject: Re: [vtkusers] Vtk 6.0 dotnet
>> To: " vtkusers at vtk.org " <vtkusers at vtk.org>, Serge Lalonde
>> <serge at infolytica.com>
>> Message-ID: <20130708165306.6B0E66504F at public.kitware.com>
>> Content-Type: text/plain; charset="utf-8"
>>
>> Thanks, Serge. It *is* too bad that the kickstarter approach did not
>> yield a funded project this time around. Perhaps later, another one will be
>> successful.
>>
>>
>>
>> Alex, you wrote ?as for me I would trust more in the results of free
>> development than in results of the projects developed using such financing.?
>>
>>
>>
>> In response, I would simply point out the results of free development are
>> that ActiViz is presently ?stuck? on the VTK 5.8 version. And it was only
>> ?free as in beer? to those of you who didn?t pay for it.
>>
>>
>>
>> It?s also too bad that nobody else has stepped up and said, ?hey, how can
>> I contribute and help to make this happen?? (Aside from the 20 kickstarter
>> project backers [1] -- thanks again, guys...)
>>
>>
>>
>> For those willing to contribute effort and manpower to the problem,
>> rather than money, go for it. VTK and ActiViz are both open source, and may
>> be built and extended by any interested party. I recently abandoned the
>> topic integrating the two [2] due to lack of activity. Anybody who wants
>> to, please feel free to resurrect it, rebase it on current ?master?, and
>> try again. Alternatively, you could simply extend the ActiViz git repo with
>> commits to make it build against an external VTK 5.10 or 6.0 [3].
>>
>>
>> While I am capable and mildly interested in furthering ActiViz .NET, I
>> prefer to spend much of my free time on non-computer related activities
>> these days. I get quite enough compute time just doing my job. But money
>> actually does motivate me... and I would be willing to do the work if paid
>> for it. So, that, plus gauging actual interest level, were my primary
>> motivations for seeking funding via kickstarter.
>>
>>
>>
>>
>>
>> Cheers,
>>
>> David Cole
>>
>>
>>
>>
>> [1]
>> http://www.kickstarter.com/projects/dlrdave/activiz-net-installers-featuring-vtk-510/backers
>>
>> [2] http://review.source.kitware.com/#/t/1615/
>>
>> [3] http://public.kitware.com/gitweb?p=activizdotnet.git
>>
>>
>>
>> P.S. ---
>>
>>
>> I would also like to point out that nowadays, you can simply build a
>> managed-C++ project with VS 2012, and ?just link for free? to the native
>> VTK C++ libraries. That doesn?t help folks using other .NET languages, but
>> it is a nice feature of the modern C++ compiler from MS that you can link
>> in both managed and un-managed code together. If you are starting a new
>> Windows Forms application, consider using managed C++ as your language.
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>>
>> ------------------------------
>>
>> Message: 2
>> Date: Mon, 8 Jul 2013 20:12:06 +0200
>> From: rahul indoria <rahulindoria5 at gmail.com>
>> Subject: Re: [vtkusers] Regarding example VTKimagereslicemapper
>> To: David Doria <daviddoria at gmail.com>, "vtkusers at vtk.org"
>> <vtkusers at vtk.org>
>> Message-ID:
>> <CAGQ+16KkyGkkjmWQ86Xh5=
>> VfUnbABFEquKOdKEDKfm9_F1eyaA at mail.gmail.com>
>> Content-Type: text/plain; charset="iso-8859-1"
>>
>> Hi,
>> Could you please tell me, what are port index in VTK functions?
>>
>>
>> On Mon, Jul 8, 2013 at 5:51 PM, David Doria <daviddoria at gmail.com> wrote:
>>
>> > In the future, please keep the conversation on the mailing list so that
>> > everyone can participate/benefit from the discussion.
>> >
>> > I believe what you're seeing is a contrast adjustment mechanism (called
>> > "window level events" -
>> >
>> http://www.vtk.org/doc/nightly/html/classvtkInteractorStyleImage.html#details
>> > ).
>> >
>> >
>> > David
>> >
>> >
>> > On Mon, Jul 8, 2013 at 11:48 AM, rahul indoria <rahulindoria5 at gmail.com
>> >wrote:
>> >
>> >> Hi David,
>> >> I have one more question regarding this example, in the
>> >> output of this example(
>> >> http://www.vtk.org/Wiki/VTK/Examples/Cxx/Images/ImageSliceMapper), why
>> >> we are getting different colors of the image, when i am left-clicking
>> on
>> >> the image and moving mouse up and down?
>> >>
>> >> Looking forward your reply soon.
>> >>
>> >>
>> >> rahul indoria
>> >>
>> >>
>> >> On Mon, Jul 8, 2013 at 3:22 PM, David Doria <daviddoria at gmail.com>
>> wrote:
>> >>
>> >>> On Mon, Jul 8, 2013 at 9:05 AM, rahul indoria <
>> rahulindoria5 at gmail.com>wrote:
>> >>>
>> >>>> Hi,
>> >>>> I was modifying this example:
>> >>>> http://www.vtk.org/Wiki/VTK/Examples/Cxx/Images/ImageSliceMapper
>> >>>> in this example, i am deleting the object vtkImageSlice, and when i
>> am
>> >>>> putting the object "imageSliceMapper" i getting an error?
>> >>>>
>> >>>> As vtkimageslice class used to represent an image in a 3D scene, i
>> >>>> don`t want to display this in 3D scene, just want to display on the
>> screen
>> >>>> that`s why i am deleting this class, so why i am getting this error?
>> >>>>
>> >>>> I modified this code like this :
>> >>>>
>> >>>
>> >>> What do you want to do if not display the image? The problem is that
>> you
>> >>> can't call AddViewProp on a mapper - it has to be a vtkProp subclass
>> >>> (like the vtkImageSlice was). In the future, please include the exact
>> >>> error that you are getting.
>> >>>
>> >>> David
>> >>>
>> >>
>> >>
>> >>
>> >> --
>> >> *Best Regards
>> >> Rahul Indoria
>> >> Mobile No: +49-157-35652212*
>> >>
>> >
>> >
>>
>>
>> --
>> *Best Regards
>> Rahul Indoria
>> Mobile No: +49-157-35652212*
>> -------------- next part --------------
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>>
>> ------------------------------
>>
>> Message: 3
>> Date: Mon, 8 Jul 2013 15:44:56 -0700 (PDT)
>> From: shinpei <noro_shinpei at web.de>
>> Subject: [vtkusers] FindCell method of vtkCellLocator
>> To: vtkusers at vtk.org
>> Message-ID: <1373323496433-5721831.post at n5.nabble.com>
>> Content-Type: text/plain; charset=us-ascii
>>
>> Hi,
>>
>> I have two triangle cells in my vtkCellLocator and I create a little bb
>> around a point of one triangle (see picture). Now I use FindCell(bb,
>> idList)
>> and I should get one id, but I get two. Is this a bug, or must I change
>> something?
>>
>> <http://vtk.1045678.n5.nabble.com/file/n5721831/Unbenannt.png>
>> - two trinagles (red)
>> - bb (blue)
>>
>> My code:
>>
>> for (vtkIdType ptId = 0; ptId < geometry->GetNumberOfPoints(); ++ptId)
>> {
>> bounds[0] = trianglePoint[0] - 0.01;
>> bounds[1] = trianglePoint[0] + 0.01;
>> bounds[2] = trianglePoint[1] - 0.01;
>> bounds[3] = trianglePoint[1] + 0.01;
>> bounds[4] = trianglePoint[2] - 0.01;
>> bounds[5] = trianglePoint[2] + 0.01;
>>
>> cellLocator->FindCellsWithinBounds(bounds, foundCells);
>>
>> int size = foundCells->GetNumberOfIds(); // is always two
>> }
>>
>>
>> Thx
>>
>>
>>
>> --
>> View this message in context:
>> http://vtk.1045678.n5.nabble.com/FindCell-method-of-vtkCellLocator-tp5721831.html
>> Sent from the VTK - Users mailing list archive at Nabble.com.
>>
>>
>> ------------------------------
>>
>> Message: 4
>> Date: Mon, 8 Jul 2013 19:00:25 -0700
>> From: Alex Malyushytskyy <alexmalvtk at gmail.com>
>> Subject: Re: [vtkusers] FindCell method of vtkCellLocator
>> To: shinpei <noro_shinpei at web.de>
>> Cc: VTK <vtkusers at vtk.org>
>> Message-ID:
>> <
>> CAHR9pJ0m4dYdghFRjZ5Y6YffT23dv3Q+Scsu4JEK8yMLQZ7rbg at mail.gmail.com>
>> Content-Type: text/plain; charset="iso-8859-1"
>>
>> It is not clear that attached picture corresponds to your claims.
>> There is no visible relation between trianglePoint and
>> geometry->GetNumberOfPoints().
>> Also for (vtkIdType ptId = 0; ptId < geometry->GetNumberOfPoints();
>> ++ptId)
>> loop does not make any sense cause nothing changes in the loop.
>>
>> So I guess your trianglePoint is not what you think it is.
>> For example if this point is shared by 2 triangles you will have the same
>> effect.
>> Another possible problem might be absolute value 0.1 used.
>> For example your triangle may have size smaller than it, which will be a
>> source of such effect too.
>>
>> Your example is not complete , you could create much better example
>> initializing all available variables so the behavior can be reproduced.
>>
>> Alex
>>
>>
>>
>> On Mon, Jul 8, 2013 at 3:44 PM, shinpei <noro_shinpei at web.de> wrote:
>>
>> > Hi,
>> >
>> > I have two triangle cells in my vtkCellLocator and I create a little bb
>> > around a point of one triangle (see picture). Now I use FindCell(bb,
>> > idList)
>> > and I should get one id, but I get two. Is this a bug, or must I change
>> > something?
>> >
>> > <http://vtk.1045678.n5.nabble.com/file/n5721831/Unbenannt.png>
>> > - two trinagles (red)
>> > - bb (blue)
>> >
>> > My code:
>> >
>> > for (vtkIdType ptId = 0; ptId < geometry->GetNumberOfPoints();
>> ++ptId)
>> > {
>> > bounds[0] = trianglePoint[0] - 0.01;
>> > bounds[1] = trianglePoint[0] + 0.01;
>> > bounds[2] = trianglePoint[1] - 0.01;
>> > bounds[3] = trianglePoint[1] + 0.01;
>> > bounds[4] = trianglePoint[2] - 0.01;
>> > bounds[5] = trianglePoint[2] + 0.01;
>> >
>> > cellLocator->FindCellsWithinBounds(bounds, foundCells);
>> >
>> > int size = foundCells->GetNumberOfIds(); // is always two
>> > }
>> >
>> >
>> > Thx
>> >
>> >
>> >
>> > --
>> > View this message in context:
>> >
>> http://vtk.1045678.n5.nabble.com/FindCell-method-of-vtkCellLocator-tp5721831.html
>> > Sent from the VTK - Users mailing list archive at Nabble.com.
>> > _______________________________________________
>> > Powered by www.kitware.com
>> >
>> > Visit other Kitware open-source projects at
>> > http://www.kitware.com/opensource/opensource.html
>> >
>> > Please keep messages on-topic and check the VTK FAQ at:
>> > http://www.vtk.org/Wiki/VTK_FAQ
>> >
>> > Follow this link to subscribe/unsubscribe:
>> > http://www.vtk.org/mailman/listinfo/vtkusers
>> >
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>>
>> ------------------------------
>>
>> Message: 5
>> Date: Mon, 8 Jul 2013 22:09:00 -0700 (PDT)
>> From: mailagentrus <mailagentrus at mail.ru>
>> Subject: [vtkusers] VTK Stereo Rendering
>> To: vtkusers at vtk.org
>> Message-ID: <1373346540408-5721833.post at n5.nabble.com>
>> Content-Type: text/plain; charset=us-ascii
>>
>> Hi! I want to add a stereo mode to my program. Program wil be show pairs
>> of
>> images image in stereo mode (with Nvidia 3d vision). I set up NVidia Qudro
>> 410 and saw stereo mode with Polydata object with using Paraview.
>> But, when I try to make own program i see inly the firs pair images in
>> stereo mode, after that image in right eye does not update... Updates inly
>> the left eye image.
>> Help me, please!
>>
>> Code:
>>
>> #include <vtkPolyDataReader.h>
>> #include <vtkSmartPointer.h>
>> #include <vtkDataSetMapper.h>
>> #include <vtkActor.h>
>> #include <vtkRenderWindow.h>
>> #include <vtkRenderer.h>
>> #include <vtkRenderWindowInteractor.h>
>> #include <vtkCamera.h>
>> #include "vtkCommand.h"
>> #include "vtkImageData.h"
>> #include <vtkBMPReader.h>
>> #include <vtkImageViewer2.h>
>> #include <vtkImageActor.h>
>>
>> vtkSmartPointer<vtkBMPReader> readerR;
>> vtkSmartPointer<vtkBMPReader> readerL;
>> vtkSmartPointer<vtkImageViewer2> imageViewer;
>>
>> class vtkTimerCallback : public vtkCommand
>> {
>> public:
>> static vtkTimerCallback *New()
>> {
>> vtkTimerCallback *cb = new vtkTimerCallback;
>> cb->TimerCount = 0;
>> return cb;
>> }
>>
>> virtual void Execute(vtkObject *vtkNotUsed(caller), unsigned long
>> eventId,
>> void *vtkNotUsed(callData))
>> {
>> if (vtkCommand::TimerEvent == eventId)
>> {
>>
>> // for example name for left eye image is
>> readerL->SetFileName ( "D:/1234/-40.bmp");
>> readerL->Update();
>>
>> // for example name for right eye image is
>> readerR->SetFileName ( "D:/1234/40.bmp");
>> readerR->Update();
>>
>> imageViewer->SetInput(readerL->GetOutput());
>> imageViewer->GetRenderWindow()->SetStereoTypeToLeft();
>> imageViewer->GetRenderWindow()->Render();
>> imageViewer->GetRenderer()->ResetCamera();
>> imageViewer->GetRenderWindow()->Render();
>>
>> imageViewer->GetRenderWindow()->StereoUpdate();
>>
>> imageViewer->SetInput(readerL->GetOutput());
>> imageViewer->GetRenderWindow()->SetStereoTypeToRight();
>> imageViewer->GetRenderWindow()->Render();
>> imageViewer->GetRenderer()->ResetCamera();
>> imageViewer->GetRenderWindow()->Render();
>>
>> imageViewer->GetRenderWindow()->StereoUpdate();
>>
>> ++this->TimerCount;
>> }
>> cout << this->TimerCount << endl;
>> }
>>
>> private:
>> int TimerCount;
>>
>> };
>>
>>
>> int main ( int argc, char *argv[] )
>> {
>> //Read the image
>> readerL =
>> vtkSmartPointer<vtkBMPReader>::New();
>> readerL->SetFileName ( "D:/1234/-5.bmp");
>> readerL->Update();
>>
>> readerR =
>> vtkSmartPointer<vtkBMPReader>::New();
>> readerR->SetFileName ( "D:/1234/5.bmp");
>> readerR->Update();
>>
>> // Visualize
>> imageViewer =
>> vtkSmartPointer<vtkImageViewer2>::New();
>>
>> vtkSmartPointer<vtkRenderWindowInteractor> renderWindowInteractor =
>> vtkSmartPointer<vtkRenderWindowInteractor>::New();
>> imageViewer->SetupInteractor(renderWindowInteractor);
>>
>> imageViewer->GetRenderWindow()->SetSize( 800, 600 );
>>
>> imageViewer->GetRenderWindow()->StereoCapableWindowOn();
>> imageViewer->GetRenderWindow()->SetStereoTypeToCrystalEyes();
>> imageViewer->GetRenderWindow()->SetStereoRender(1);
>> imageViewer->GetRenderWindow()->StereoUpdate();
>>
>> renderWindowInteractor->Initialize();
>>
>> imageViewer->SetInput(readerBase->GetOutput());
>> imageViewer->GetRenderWindow()->Render();
>> imageViewer->GetRenderer()->ResetCamera();
>> imageViewer->GetRenderWindow()->Render();
>>
>> // Sign up to receive TimerEvent
>> vtkSmartPointer<vtkTimerCallback> cb =
>> vtkSmartPointer<vtkTimerCallback>::New();
>> renderWindowInteractor->AddObserver(vtkCommand::TimerEvent, cb);
>>
>> int timerId = renderWindowInteractor->CreateRepeatingTimer(100);
>> std::cout << "timerId: " << timerId << std::endl;
>>
>> renderWindowInteractor->Start();
>>
>> return EXIT_SUCCESS;
>> }
>>
>>
>>
>>
>> --
>> View this message in context:
>> http://vtk.1045678.n5.nabble.com/VTK-Stereo-Rendering-tp5721833.html
>> Sent from the VTK - Users mailing list archive at Nabble.com.
>>
>>
>> ------------------------------
>>
>> Message: 6
>> Date: Tue, 9 Jul 2013 14:08:36 +0800
>> From: "hongsongyang" <hongsongyang at 163.com>
>> Subject: [vtkusers] [vtkUsers] About Different RenderWindowInteractor
>> To: <vtkusers at vtk.org>
>> Message-ID: <D36F8CD489D643279CDEF9B7802D2D8F at WlfPC>
>> Content-Type: text/plain; charset="us-ascii"
>>
>> Dear All:
>>
>> I have several renders (e.g 4 render), and we could use SetViewport
>> to
>> display all of them in one RenderWindow.
>>
>> My question is that could I set different interactor for each of the
>> render?
>>
>> For example, for render1, I only need zoom and ww/wl operation, but for
>> render2, I need zoom, pan and rotate operation.
>>
>>
>>
>> Thanks a lot.
>>
>> Hongsongyang
>>
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>> ------------------------------
>>
>> Message: 7
>> Date: Mon, 8 Jul 2013 23:34:35 -0700
>> From: Gideon Valch <gvalch1237 at gmail.com>
>> Subject: [vtkusers] using vtkGL2PSExporter in python [ under
>> pythonXY() ]
>> To: vtkusers at vtk.org
>> Message-ID:
>> <
>> CAEEGk3YCKrV6gQCtRoPXZZQXQ+Qr7J+KPgK+zLAAeF2e6+Kpgw at mail.gmail.com>
>> Content-Type: text/plain; charset="iso-8859-1"
>>
>> Hello,
>>
>> I use pythonxy() as my platform for python supported vtk. Currently,
>> I'm trying to export a vtk render window to post script using the sample
>> code (at bottom) but I'm getting an error (see below). I suspect this
>> relates to how pythonxy() is compiled. Can anyone suggest a workaround?
>>
>> Thanks,
>> GV
>>
>> exporter = vtk.vtkGL2PSExporter()
>> AttributeError: 'module' object has no attribute 'vtkGL2PSExporter'
>>
>> ----------------------------
>>
>> prefix="c:\\temp\\foo444"
>> exporter = vtk.vtkGL2PSExporter()
>> exporter.SetFilePrefix(prefix)
>> exporter.SetFileFormatToSVG()
>> exporter.SetRenderWindow(renWin)
>> exporter.CompressOff()
>> exporter.SetSortToOff()
>> #exporter.DrawBackgroundOn()
>> #exporter.Write3DPropsAsRasterImageOn()
>> exporter.Write()
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>> ------------------------------
>>
>> Message: 8
>> Date: Tue, 9 Jul 2013 00:44:38 -0700 (PDT)
>> From: Ruff <albin.nilsson at gmail.com>
>> Subject: Re: [vtkusers] Help with image planes example
>> To: vtkusers at vtk.org
>> Message-ID: <1373355878399-5721836.post at n5.nabble.com>
>> Content-Type: text/plain; charset=us-ascii
>>
>> Thank you!
>> The problem is that when I tried with ImageData as input in
>> volume16reader I
>> got the error "Attempt to connect input port index 0 for an algorithm
>> with 0
>> input ports"
>> Using ImageData as input directly to vtkImagePlaneWidget worked fine
>> though,
>> so I guess that solves it.
>> (My VTK-programming right now is mostly trial and error along with trying
>> to
>> understand the different data structures and the pipeline)
>>
>>
>>
>> --
>> View this message in context:
>> http://vtk.1045678.n5.nabble.com/Help-with-image-planes-example-tp5721813p5721836.html
>> Sent from the VTK - Users mailing list archive at Nabble.com.
>>
>>
>> ------------------------------
>>
>> Message: 9
>> Date: Tue, 09 Jul 2013 11:23:11 +0200
>> From: Umer Rafi <umer.rafi at rwth-aachen.de>
>> Subject: [vtkusers] adding texture to a wavefront .obj file in vtk
>> To: vtkusers at vtk.org
>> Message-ID: <fb959ae41b00e3.51dbf29f at rwth-aachen.de>
>> Content-Type: text/plain; CHARSET=US-ASCII
>>
>> Hello everyone,
>>
>> I am new to vtk. I am having a wavefront file of a 3d human model.
>> What I want to do is to render it using vtk and apply different textures to
>> different parts of the 3d human model. For example I have a texture image
>> containing a shirt that I want to apply to torso and arms only. Another
>> one for jeans that I want to apply to legs and thighs only. I will really
>> appreciate if anyone can provide a sample code snippet to get me started.
>>
>>
>> thanks in advance.
>>
>> Regards
>> Umer
>>
>>
>> ------------------------------
>>
>> Message: 10
>> Date: Tue, 9 Jul 2013 16:53:12 +0530
>> From: "divya" <divya at triassicsolutions.com>
>> Subject: [vtkusers] Unexpected actor orientation results
>> To: "Vtk Users" <vtkusers at vtk.org>
>> Message-ID: <004201ce7c96$b5c358a0$214a09e0$@triassicsolutions.com>
>> Content-Type: text/plain; charset="us-ascii"
>>
>>
>>
>> Dear vtkUsers,
>>
>> I am trying to find the orientation of an actor while I'm rotating it,
>> the z
>> and y are correct, but the value range for the x axis is [-90, 90],
>> whereas
>> the value range for z and y axis is [-180, 180].
>>
>>
>>
>> Also the rotation doesn't happen in the chosen axis, for example when I
>> chose to rotate the actor by 15 degrees on y-axis, the value of the z-axis
>> increases.
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
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>>
>> ------------------------------
>>
>> Message: 11
>> Date: Tue, 9 Jul 2013 05:23:41 -0700 (PDT)
>> From: shinpei <noro_shinpei at web.de>
>> Subject: Re: [vtkusers] FindCell method of vtkCellLocator
>> To: vtkusers at vtk.org
>> Message-ID: <1373372621955-5721840.post at n5.nabble.com>
>> Content-Type: text/plain; charset=us-ascii
>>
>> Sry... I thought it would be clear what I mean.
>>
>> The geometry contains two triangles:
>> Points are:
>> (0 0 0)
>> (0 10 0)
>> (10 0 0)
>> (10 10 0)
>>
>> with connection:
>> (0 1 2)
>> (1 2 3)
>>
>> for (vtkIdType ptId = 0; ptId < geometry->GetNumberOfPoints();
>> ++ptId)
>> {
>> geometry->getPoints()->GetPoint(ptId, trianglePoint);
>>
>> bounds[0] = trianglePoint[0] - 0.01;
>> bounds[1] = trianglePoint[0] + 0.01;
>> bounds[2] = trianglePoint[1] - 0.01;
>> bounds[3] = trianglePoint[1] + 0.01;
>> bounds[4] = trianglePoint[2] - 0.01;
>> bounds[5] = trianglePoint[2] + 0.01;
>>
>> cellLocator->FindCellsWithinBounds(bounds, foundCells);
>>
>> int size = foundCells->GetNumberOfIds(); // is always two
>> }
>>
>> The trianglePoint is e.g. (0 0 0) (first iteration of the loop) so I
>> should
>> get only one triangle, but I get always two triangles. The bb is small
>> enough and there is a point which correspons to only one triangle.
>>
>>
>>
>> --
>> View this message in context:
>> http://vtk.1045678.n5.nabble.com/FindCell-method-of-vtkCellLocator-tp5721831p5721840.html
>> Sent from the VTK - Users mailing list archive at Nabble.com.
>>
>>
>> ------------------------------
>>
>> Message: 12
>> Date: Tue, 9 Jul 2013 15:43:23 +0300
>> From: Haroon Showgan <haroon.showgan at gmail.com>
>> Subject: [vtkusers] VTK application running on Linux loads VNC server
>> To: vtkusers at vtk.org
>> Message-ID:
>> <CAJ=
>> gTgXfT44oBK1Qz5idLBRDt0kdiZuLh0iA+mrtAChwR_-Pkw at mail.gmail.com>
>> Content-Type: text/plain; charset="iso-8859-1"
>>
>> Hi,
>>
>> I'm implementing a VTK application for visualizing geometrical 3D objects.
>> Most of the code is written in C++, and I use TCL-TK widgets for the GUI
>> (I
>> use *vtkTkRenderWidget* for the main canvas).
>>
>> Most of my objects are *vtkVoxel* objects inserted into a *
>> vtkUnstructuredGrid*.
>>
>> I run this application on a Linux server and I connect to this server from
>> Windows using VNC. I noticed that when I load a very large data set into
>> the application then the *VNC server* (on the Linux machine) consumes a
>> lot
>> of memory and uses 100% CPU. I didn't realize that the memory and CPU
>> usages of a VNC server would be affected so much like this.
>>
>> Note that my VTK application is also consuming a lot of memory and CPU,
>> but what I find strange is that the VNC server is also affected (the
>> process is called *Xvnc_core*).
>>
>> Does anyone know how this is caused and do you have any suggestion how to
>> mitigate the problem?
>>
>> Regards,
>> Haroon
>> -------------- next part --------------
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>> http://www.vtk.org/pipermail/vtkusers/attachments/20130709/621fefc2/attachment-0001.htm
>> >
>>
>> ------------------------------
>>
>> Message: 13
>> Date: Tue, 9 Jul 2013 07:25:46 -0700 (PDT)
>> From: Massinissa Bandou <Massinissa.Bandou at USherbrooke.ca>
>> Subject: [vtkusers] .RAW file
>> To: vtkusers at vtk.org
>> Message-ID: <1373379946181-5721842.post at n5.nabble.com>
>> Content-Type: text/plain; charset=us-ascii
>>
>> Hello everyone,
>>
>> I tried to read a (.raw) file with the following code but it displays a
>> RED
>> CUBE. Here is some information about my file dataInfo.txt
>> <http://vtk.1045678.n5.nabble.com/file/n5721842/dataInfo.txt> . Is there
>> something wrong in my code?
>>
>> thx for your time and help!
>>
>> sorry my file is too large to be send.
>>
>> #include <vtkSmartPointer.h>
>> #include <vtkRenderWindow.h>
>> #include <vtkRenderWindowInteractor.h>
>> #include <vtkRenderer.h>
>> #include <vtkActor>
>> #include <vtkImageReader>
>> #include <vtkDataSetMapper>
>>
>> int main(int argc, char *argv[])
>> {
>> vtkImageReader *reader = vtkImageReader::New();
>> reader->SetFileName(file.c_str());
>> reader->SetFileDimensionality(3);
>> reader->SetNumberOfScalarComponents(1);
>> reader->SetDataExtent(0,512,0,512,0,512);
>> reader->SetDataSpacing(0.145, 0.145, 0.145);
>> reader->SetDataByteOrderToBigEndian();
>> reader->SetDataScalarTypeToChar();
>> reader->Update();
>>
>> vtkSmartPointer<vtkDataSetMapper> map =
>> vtkSmartPointer<vtkDataSetMapper>::New();
>> map->SetInputConnection(reader->GetOutputPort());
>>
>>
>> vtkSmartPointer<vtkActor> actor =
>> vtkSmartPointer<vtkActor>::New();
>> actor->SetMapper(map);
>>
>> vtkSmartPointer<vtkRenderWindowInteractor> interactor =
>> vtkSmartPointer<vtkRenderWindowInteractor>::New();
>>
>> vtkSmartPointer<vtkRenderWindow> renderWindow =
>> vtkSmartPointer<vtkRenderWindow>::New();
>> interactor->SetRenderWindow(renderWindow);
>> vtkSmartPointer<vtkRenderer> renderer =
>> vtkSmartPointer<vtkRenderer>::New();
>> renderWindow->AddRenderer(renderer);
>> renderer->AddActor(actor);
>>
>> renderWindow->Render();
>> interactor->Start();
>> }
>>
>>
>>
>>
>> --
>> View this message in context:
>> http://vtk.1045678.n5.nabble.com/RAW-file-tp5721842.html
>> Sent from the VTK - Users mailing list archive at Nabble.com.
>>
>>
>> ------------------------------
>>
>> Message: 14
>> Date: Tue, 9 Jul 2013 11:38:50 -0400
>> From: Bill Lorensen <bill.lorensen at gmail.com>
>> Subject: Re: [vtkusers] .RAW file
>> To: Massinissa Bandou <Massinissa.Bandou at usherbrooke.ca>
>> Cc: VTK Users <vtkusers at vtk.org>
>> Message-ID:
>> <
>> CADZJ4hNXVuS_7L9ocCzex3XHpqyg5dpdKJ2NmxfQn_DnaSDp_Q at mail.gmail.com>
>> Content-Type: text/plain; charset="iso-8859-1"
>>
>> If your data is 512x512x512 then
>> reader->SetDataExtent(0,512,0,512,0,512);
>> should be:
>> reader->SetDataExtent(0,511,0,511,0,511);
>>
>> Also be certain you are setting the correct endianness.
>>
>>
>> On Tue, Jul 9, 2013 at 10:25 AM, Massinissa Bandou <
>> Massinissa.Bandou at usherbrooke.ca> wrote:
>>
>> > Hello everyone,
>> >
>> > I tried to read a (.raw) file with the following code but it displays a
>> RED
>> > CUBE. Here is some information about my file dataInfo.txt
>> > <http://vtk.1045678.n5.nabble.com/file/n5721842/dataInfo.txt> . Is
>> there
>> > something wrong in my code?
>> >
>> > thx for your time and help!
>> >
>> > sorry my file is too large to be send.
>> >
>> > #include <vtkSmartPointer.h>
>> > #include <vtkRenderWindow.h>
>> > #include <vtkRenderWindowInteractor.h>
>> > #include <vtkRenderer.h>
>> > #include <vtkActor>
>> > #include <vtkImageReader>
>> > #include <vtkDataSetMapper>
>> >
>> > int main(int argc, char *argv[])
>> > {
>> > vtkImageReader *reader = vtkImageReader::New();
>> > reader->SetFileName(file.c_str());
>> > reader->SetFileDimensionality(3);
>> > reader->SetNumberOfScalarComponents(1);
>> > reader->SetDataExtent(0,512,0,512,0,512);
>> > reader->SetDataSpacing(0.145, 0.145, 0.145);
>> > reader->SetDataByteOrderToBigEndian();
>> > reader->SetDataScalarTypeToChar();
>> > reader->Update();
>> >
>> > vtkSmartPointer<vtkDataSetMapper> map =
>> > vtkSmartPointer<vtkDataSetMapper>::New();
>> > map->SetInputConnection(reader->GetOutputPort());
>> >
>> >
>> > vtkSmartPointer<vtkActor> actor =
>> vtkSmartPointer<vtkActor>::New();
>> > actor->SetMapper(map);
>> >
>> > vtkSmartPointer<vtkRenderWindowInteractor> interactor =
>> > vtkSmartPointer<vtkRenderWindowInteractor>::New();
>> >
>> > vtkSmartPointer<vtkRenderWindow> renderWindow =
>> > vtkSmartPointer<vtkRenderWindow>::New();
>> > interactor->SetRenderWindow(renderWindow);
>> > vtkSmartPointer<vtkRenderer> renderer =
>> > vtkSmartPointer<vtkRenderer>::New();
>> > renderWindow->AddRenderer(renderer);
>> > renderer->AddActor(actor);
>> >
>> > renderWindow->Render();
>> > interactor->Start();
>> > }
>> >
>> >
>> >
>> >
>> > --
>> > View this message in context:
>> > http://vtk.1045678.n5.nabble.com/RAW-file-tp5721842.html
>> > Sent from the VTK - Users mailing list archive at Nabble.com.
>> > _______________________________________________
>> > Powered by www.kitware.com
>> >
>> > Visit other Kitware open-source projects at
>> > http://www.kitware.com/opensource/opensource.html
>> >
>> > Please keep messages on-topic and check the VTK FAQ at:
>> > http://www.vtk.org/Wiki/VTK_FAQ
>> >
>> > Follow this link to subscribe/unsubscribe:
>> > http://www.vtk.org/mailman/listinfo/vtkusers
>> >
>>
>>
>>
>> --
>> Unpaid intern in BillsBasement at noware dot com
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>>
>> ------------------------------
>>
>> Message: 15
>> Date: Tue, 9 Jul 2013 08:46:33 -0700 (PDT)
>> From: Ruff <albin.nilsson at gmail.com>
>> Subject: [vtkusers] My point cloud data won't display in the renderer.
>> To: vtkusers at vtk.org
>> Message-ID: <1373384793963-5721844.post at n5.nabble.com>
>> Content-Type: text/plain; charset=us-ascii
>>
>> All i get is an empty renderWindow. I get no errors, but no data is
>> rendered
>> either. What am I doing wrong?
>>
>> What I do is pretty much this:
>>
>> AtomGrid=vtk.vtkUnstructuredGrid()
>> AtomGrid.SetPoints( vtkPoints with [index,x,y,z] )
>> AtomGrid.GetPointData().SetScalars( vtkFloatArray with [index, scalar]
>> )
>>
>> volMapper = vtk.vtkUnstructuredGridVolumeRayCastMapper()
>> volMapper.SetBlendModeToComposite()
>> volMapper.SetInput(AtomGrid)
>>
>>
>> I tried volMapper.SetScalarModeToUsePointFieldData(), but then it claims
>> that I have no scalar values to use(!!)
>>
>> (I cheated before, and was satisfied using ImageData for this, but now I
>> really need to get this to work with UnstructuredGrid)
>>
>>
>>
>> --
>> View this message in context:
>> http://vtk.1045678.n5.nabble.com/My-point-cloud-data-won-t-display-in-the-renderer-tp5721844.html
>> Sent from the VTK - Users mailing list archive at Nabble.com.
>>
>>
>> ------------------------------
>>
>> _______________________________________________
>> vtkusers mailing list
>> vtkusers at vtk.org
>> http://www.vtk.org/mailman/listinfo/vtkusers
>>
>>
>> End of vtkusers Digest, Vol 111, Issue 16
>> *****************************************
>>
>
>
>
> --
> *Best Regards
> Rahul Indoria
> Mobile No: +49-157-35652212*
>
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at
> http://www.kitware.com/opensource/opensource.html
>
> Please keep messages on-topic and check the VTK FAQ at:
> http://www.vtk.org/Wiki/VTK_FAQ
>
> Follow this link to subscribe/unsubscribe:
> http://www.vtk.org/mailman/listinfo/vtkusers
>
>
--
Unpaid intern in BillsBasement at noware dot com
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