[vtkusers] Cannot render imported ITK volume data (no point or cell data available)

[Christian Werner]

Hello!

I am doing some ITK Filtering on vtkImageData in Paraview. In 
particular, I have a 512x512x109 sized, unsigned char volume. The first 
filtering I do is some vtk filter. The result is fine and I can view 
this as a volume as usual, no problems there.

Now come my ITK filters which work on the data and yield a 3d volume of 
the same size and return back a vtkImageData. All goes well, I can view 
the results in, but only in slices.

  The volume mode won't work anymore:

Cannot volume render since no point (or cell) data available.


Any ideas? I didn't find any filter that promised to create cell (or 
point) data out of my "slice" volume.

I have used the VTK>ITK>VTK filtering many times now. The pipelines are 
correctly connected as stated in several examples (setting up 12 
callback functions between vtkImporter and itkExporter and vice versa). 
So this probably isn't something that goes wrong. (I am getting good 
results in the first place but just no "real" volume...?)


Best regards,
Christian
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