[vtkusers] Using vtkLineWidget2 with PyQt

[Oliver Natt]

Dear vtkusers,

for some reason, I cannot manage to get a vtkLineWidget2 working in one 
of my PyQt-applications. Interestingly, the same code works well in a 
regular vtk-window. Please find attaced two python scripts. The first 
script "linewidget2_noQt.py" works exactly as expected: A yellow 
cylinder and the line widget is rendered. I can also interact with the 
widget by dragging the endpoints with the mouse. However, the same code 
embedded into a Qt-Window (cf. linewidget2_qt.py) does not work: The 
yellow cylinder is shown, but the line widget is missing.

Do you have any suggestions how to get the vtkLineWidget2 working in a 
PyQt-application?

Best regards,
Oliver






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