[vtkusers] vtkLookupTable

[xiong fei]

Hi, vtkusers

     I plan to use vtkLookupTable to transfer scalar
data into colors. But when I use the public method
GetColor or GetOpacity, the VTK system return error
and say "there is no member function like
GetColor/GetOpacity". However, I can find it in
vtkLookupTable's manual page. Can somebody tell me
what's the reason? Thanks a lot.

Best Regards
Peter

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