[vtkusers] Problem of vtkPolyDataToImageStencil

[Mathieu Malaterre]

Yan,

	Did you read the documentation of vtkPolyDataToImageStencil ? My guess 
is that you are trying to display an image stencil. Please read :

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

	And an example is always eaiser to understand:

http://vtk.org/cgi-bin/cvsweb.cgi/~checkout~/VTK/Hybrid/Testing/Tcl/TestImageStencilWithPolydata.tcl

HTH
Mathieu

Yan Pingkun wrote:
>  Hi all,
>  
> I'm using vtkPolyDataToImageStencil in my project. I run the TCL text 
> program. It is OK except the recently reported bug.
>  
> But when I wrote program in C++, the filter can't work. My code is as 
> follows:
>  
> ========================================================
>  vtkSphereSource* sphere = vtkSphereSource::New();
>  sphere->SetPhiResolution(12);
>  sphere->SetThetaResolution(12);
>  sphere->SetCenter(48, 48, 48);
>  sphere->SetRadius(5);
>  
>  vtkPolyDataToImageStencil* Poly2Stencil = vtkPolyDataToImageStencil::New();
>  Poly2Stencil->SetInput(sphere->GetOutput());
>  Poly2Stencil->Update();
>  const vtkImageStencilData* stencilData = Poly2Stencil->GetOutput();
> ========================================================
>  
> When I debug the program, I found that the extent of stencilData is 
> always -1, which causes the program crash.
> Anybody can help? I'm working under Windows XP with MSVC 6.
>  
> Thanks!
>  
> Regards,
> Pingkun