[vtkusers] getting point information from vtkCutter

[Clare Fitzpatrick]

Hi All,

>From what i understand, an instance of vtkCutter gives a PolyData output, which is basically a list of points or lines. So where is this list stored and is it possible to access the coordinates of these points? 
I am intersecting two cutting planes and i want to extract the points of intersection. So far i have been able to use vtkGlyph3D to apply spheres (or whatever) onto the intersecting points but I dont know how to get their coordinates (without using vtkPicker - i want to do this automatically!).

Thanks,
Clare
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