[vtkusers] Accessing vtkPolyData scalars with Python

[bberkowi]

OK, so if anyone can just help in general, it doesn't have to be with Python
syntax (but it would be helpful).  This is what I have so far, and it's not
working:

    distanceMapper.Surface.GetPointData().SetActiveScalars('Scalars_')
    distanceArray = distanceMapper.Surface.GetPointData().GetScalars()

    #print 'DISTANCE SURFACE:',  distanceMapper.Surface

    print 'DISTANCE ARRAY:',  distanceArray
    tuple = []
    tuple = distanceArray.GetTuple(0)
    print tuple

and GetTuple() doesn't work.  It returns an error, "Traceback (most recent
call last):
  File "VTK_testing.py", line 80, in <module>
    tuple = distanceArray.GetTuple(0)
AttributeError: GetTuple"

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