[vtkusers] vtkInteractorStyleUser

[Robb Brown]

I'm using vtkInteractorStyleUser in Python to implement custom 
interaction with a volume rendering.  I can capture button presses 
and mouse moves but how do I modify the scene?  SpinCamera(), Rotate, 
Pan etc. aren't available.

I'd like to use the trackball interaction style most of the time but 
be able to do different things depending on key presses, mouse clicks 
etc.  Is there a way to pass control to the trackball style when I 
choose?

Are there any custom interaction examples with 3D rendering?

Thanks,

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Robb Brown
Seaman Family MR Research Centre
Calgary, Alberta, Canada