[vtkusers] interactive window/level in polydata

[Sgouritsa, Eleni]

Hello,
I am visualizing a 3D mesh (polydata) with colors based on the Scalars of the polydata. I was wondering if there is a way to interactively change window/level similar to what is happening using the right mouse button in the class vtkImagePlaneWidget. 

Regards,
Lena
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