Box zooming examples

[Bruce Flynn <brucef@xxxxxxxxxxxxx>]

Hello All,

Are there some examples using zooming with a J3D display available 
somewhere?  I checked the examples directory and couldn't find *any* 
examples using box zoom capabilities.  It looks like using the 
RubberBandBoxRendererJ3D is what I'm looking for but I'm not quite sure 
how to implement it.

Thanks,
Bruce