another bounding box questi

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Chris Pratico (chris_pratico++at++maca.sarnoff.com)
9 Nov 1993 16:15:54 U

                      another bounding box question
While we seem to be on the subject of bounding boxes - I have a related
question.

I want to get the radius of the bounding sphere around an object, currently I
do the following:

pfBox bbox, *bboxes;
pfSphere bsphere;

pfGetNodeBBox(object, &bbox, NULL);
bboxes = &bbox;
pfSphereAroundBoxes(&bsphere, &bboxes, 1);

r1 = bsphere.radius;

Since the underlying geometery of the bounding box is actually a sphere, is
there a more direct way of doing this? Do I really need to get the bounding
box of the object and then extend a sphere around the bbox to get its radius?

Thanks

Chris Pratico
chris_pratico++at++maca.sarnoff.com

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