[vtkusers] Setting the scalar values

[Richard A Rowe]

Hi all,

I'm reading in a vtk file that has no scalar information
using vtkPolyDataReader(). I'd like to give each point 
in the vtkPolyData object that it outputs a scalar value
that I have in a standard array. I'd like to use these 
scalars for color mapping.

I can see how to color map by creating an object
manually such in example: Examples/DataManipulation/Cxx/Cube.cxx,
but I'm a little stuck when it comes to reading in
from a vtk file.

Can anyone point me in the right direction please?

Cheers,
Richard. 
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