[vtkusers] Gridline as the background in VTK (Python)

[mafiaskafia]

Hello, I would like to know if it's possible to have a gridline as the
background of the vtkRenderer (instead of a blank color) like this:
  <http://vtk.1045678.n5.nabble.com/file/t342418/halpaa.png> . 
I'm doing a program that does a 2D cross-section analysis using FEM (gives
its centroid, inertias, etc), so i would need a gridline to display, for
example, the centroids more efficiently. Is this possible with vtk?

Thanks in advance,

Cheers



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