[vtkusers] Plane update-problem

[Philipp Staempfli]

I have the following problem: I defined a plane (vtkplaneSource). After some 
interactions with the mouse, I'd like to get the new normal of the plane. If 
I make the call plane->GetNormal(), I get back the old, originally defined 
normal. What shold I do that the plane updates the datas?

Thanks for any advise!

Philipp Staempfli

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