[vtkusers] Custom filter polydata -> imagedata

[Bruce Jones]

Hi,

I am trying to write a custom VTK filter to use with paraview. The filter
is designed to interpolate data form an sph simulation (polydata) to a
regular grid (imagedata). However, it is not clear to me which base class
my filter should inherit from.

I initially tried inheriting from vtkImageAlgorithm, the code worked and I
was bale to load the filter in paraview, however I since have realised that
this would only work for imagedata input + imagedata output.

What is your recommendation for polydata input + imagedata output?

Cheers,
Bruce
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