[osg-users] Boundingsphere precision question

[Paul Martz]

> I created a NodeVisitor and traversed the loaded node, the 
> boundingbox I received from the Geode is indeed smaller, but 
> it confused me a little bit, since it looks like the attached 
> picture -> http://img225.imageshack.us/img225/3594/tankspherexgk9.gif
> So obviously there are several geode in the model, but is 
> there a quick way to get the "overall" geode? I tried to 
> traverse all geodes and saving the geode with the biggest 
> boundingbox radius, but then I get the center of the last 
> goede's center, which is seldomly the center of the model.

The osg::ComputeBoundsVisitor might be useful. It computes the bounding box
for an entire subgraph.
   -Paul