[vtkusers] Getting an region of interest out of a ImageTracerWidget ?

Daniel Kornhauser kornhauser at resonon.com
Mon Jul 31 17:39:04 EDT 2006

In the ImageTracerWidget .py example how can I get from the poly 
instance in the AdjustSpline callback

    The coordinates of points that compose the green line around the 
region of interest ?
    The coordinates of the points inside the the region of interest ?
    I am totally wrong and I should get them from the extract instance ?



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