[vtkusers] Re:Land topography with distinct colors

[Mdl]

As far as I know, you should use the
vtkPolyData::GetPointData()->SetScalars() method to assign the L value to
each point. The method takes a vtkXXXArray as the parameter, so you should
prepare this array with the L values.
Then, maybe, you also need to tell VTK to use those scalars, with
vtkPolyDataMapper::ScalarVisibilityOn().
And, of course, tell the vtkPolyDataMapper which vtkLookupTable to use, with
vtkPolyDataMapper::SetLookupTable().

Hope this is right
(and this is what you need!),
bye,
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                        Marco Di Lorenzo
                        (mdl78 at libero.it)
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IAC-CNR di Roma
Istituto per le Applicazioni del Calcolo "M. Picone"
Viale del Policlinico, 137
00161, Roma
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