[vtkusers] vtkLookupTable from vtkPiecewiseFunction

[Simon DROUIN]

Ok, I just found out I can use vtkImageMapToColors with a 
vtkColorTransferFunction as its lookup table. But how do I compute the 
alpha values for the texture?

Simon

Simon DROUIN wrote:

> Hi all,
>
> I'm mappinp 2D images on PolyData but I would like to specify the 
> lookup table of the texture using a
> mecanism similar to vtkColorTransferFunction. Is there a class in vtk 
> to do that or do I have to write it by myself?
>
> Thanks in advance.
>
> Simon
>
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