[vtkusers] How to catch events from vtkContourWidget?

[Massimo Bortolato]

Hi all,

I need to dynamically compute (and display) the perimeter of a vtkContourWidget, basically the same way as vtkDistanceWidget works.
So I’d like to sniff the events generated by the widget, but it seems that there aren’t specific events associated with vtkContourWidget, or vtkContourRepresentation.

Does anyones of you know how I can do?

Thanks in advance
Massimo
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