elevation data

[Randy Heiland]

> I have data for elevation for the Earth and I want to make a surface of
> the Earth where the color of the surface varies with height.  So I have
> points (x,y,z) on a sphere, and to each one is a magnitude (the height
> above the spherical surface).  It seems like there should be a
> straightforward way to do this, but I am having trouble.  Possible my
> misuse of isosurfaces, contouring, elevation filters, etc.

perhaps vtkWarpScalar?

--Randy
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