[vtkusers] Re: Wrong extent after SetInput

[Benjamin King]

 > Can't you use SetExtent or something similar?

I don't think so. Every vtkVolumeMapper has an embedded vtkImageClip. 
But vtkVolumeMapper::SetInput doesn't call 
vtkImageClip::ResetOutputWholeExtent, and I didn't find a way around 
this without modifying the VTK source and insert that call.
But it's not vtkImageClip's fault, because for certain other purposes it 
makes sense not to reset the extent. It just isn't that useful (for me) 
within the context of a volume mapper.

cu,
   Benjamin

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