[vtkusers] How to disable rotation

[Yi-Yu Chou]

Dear vtk users,

Is it possible to disable rotation but keep pan and zoom alive ?
I know there is a simple way to do it, but not perfect.
You can use :
pane.bind("<ButtonPress-1>", lambda e: e)

This method works well. But after using pan or zoom, the interactor of 
rotation is "activated".
How to fix this problem ? Or there is a better way to do it. 
Thanks in advance !!!

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