[vtkusers] Render a image in a loop while it is updating

[Jim Peterson]

David Doria wrote:
> Jim, is this what you were planning to do?
> http://www.vtk.org/Wiki/VTK/Examples/Java/Visualization/Animation
>
> David
>
>   

David,
Similar, exceptinstead of just moving objects with the actor  I was 
going to have logic to modify the Polydata points and mark the data 
modified during the interaction to make an animation actually move, 
maybe a sphere that expands and contracts on one axis at a time.

Jim