[vtkusers] Problem mapping scalars to colors using a vtkLookupTable

[Peter Kok]

Hello Geofram,

Thanks for your reply. That is close to what I'm trying to do, but the
problem is that my scalar values are scattered about a 32-bit range and it
is not possible to create a lookup table that covers all values. I guess a
vtkColorTransferFunction would work, but a vtkImagePlaneWidget only accepts
vtkLookupTables...

-Peter
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