[Paraview] Fail to get the mapper of a volume actor!

沈恩亚 enya.shen2010 at gmail.com
Sat Oct 1 22:09:48 EDT 2011

Hi All,

I used the codes following to get the mapper of a volume actor, but I get
NULL while *volume *is not NULL.

*  vtkAbstractMapper3D *mapper = NULL;
  if ( (volume = vtkVolume::SafeDownCast(propCandidate)) != NULL )
    mapper = volume->GetMapper();
Why? Thanks for any advice!

Best wishes!
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