[vtkusers] Problem of vtkPolyDataToImageStencil

[Yan Pingkun]

 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
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