[vtkusers] vtkInteractorStyleTrackballCamera zoom stops zooming?

[Dominik Szczerba]

I think this might have to do with the focal point. Try setting it to 
the object center.

David Doria wrote:
> If I have a scene with an object far off in the distance, I can start
> to zoom in by holding the right mouse button and moving the mouse up.
> After I do this about 5 times, the object is still very small and I
> want to continue zooming. However, this motion starts to change the
> scene less and less with each stroke, eventually not doing anything
> when I try to zoom. Is there a way around this?
> 
> Thanks,
> 
> David
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