[vtkusers] How to and random noise to the point locations in vtkPolyData?

[agerlach]

Hello,

I am developing an application that compares a 3D CAD generated model with
that of a 3D scan of the same object. To test my algorithms I would like to
load the CAD model as a vtkPolyData, deep copy that to a new vtkPolyData and
then add random noise to the point locations in the second vtkPolyData. I
know how to create the random noise, but how do I modify the point locations
in the vtkPolyData? I just want to add the noise to the x,y,z locations of
the point locations of each point in the mesh. Thanks.
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