[vtkusers] I need to get the X, Y, Z coordinates of a point in a vtkPolyData

[Alessandro Artusi]

Dear All,

I have a vtkPolyData from the vtkContourFilter and I need to get the X,Y,Z
coordinates of each point in the PolyData. This because I need to convert
them.
How can i get this info?

Thanks a lot for teh help,
Alessandro.
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