[vtkusers] Constraint rotation 3D scene

[Bertrand De Boisdeffre]

Hi, 
Here my issue:

I would like to know if it is possible to  constraint rotation in a 3D scene. 
For example, rotate only around  y-axis and z-axis in a "simple way" without 
keyboard using ( it's for a  touch-screen). Actually, I suppose that it could be 
done by 1 way :

handle interactor events (like MouseMoveEvt and LeftButtonpressEvt)  and then do 
a "good camera positionning " based of the mouse movement.  But i think it's a 
little bit complicated.

Best regards,



      
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