Set the field of view of your view object. The value should be between
(0,PI) - reduce your fov to zoomin or increase it to zoom out. 

viewer.getView().setFieldOfView(newFOV);

rOnn c.

On Thu, 4 Mar 1999, Jason Goh Thiam Hock wrote:

> Hi,
> 
> How do I implement zoom during runtime with a click of a button?
> 
> Jason
> 
> 
> 
> 
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