[vtkusers] GetResliceOutput() problem with vtkImagePlaneWidget

[Mathieu Coursolle]

Hi,
I am using a vtkImagePlaneWidget to display a volume.
I want to display the content of the plane when an 
interraction occurs. 
However, the reslice image output is size is always
a power of 2, so my image is bigger than it should be, 
filling the extra size with zeros.
Is there a way to crop the image to the original size
if I don't know it?
Here is what I do:
 
vtkImageData* image = widget->GetResliceOutput();
 
vtkImageMapToRGBA* image_map = vtkImageMapToRGBA::New();      
    image_map->SetInput(image); 
    image_map->SetLookupTable(m_LookUpTable);



imageActor->SetInput(image_map->GetOutput());

m_Renderer->AddProp(imageActor);

 

Thanks a lot...

MAthieu




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