Hi Dominik,
On Wed, 2004-08-04 at 17:16, Dominik Rau wrote:
> Hi.
> I've got a VRML file with some (primitive) spheres that are needed for
> obstacle avoidance in my project. How can I get the center and the
> radius of these spheres in world coordinates? I thought about extending
> an empty SphereVolume by a DynamicVolume that I get from every Node with
> a GeometryCore, but that seems to be a bit complicated. Is there a
> better way?
If you know that it's a sphere you can get center and radius from the
Node relatively easily (warning: untested code):
DynamicVolume world_vol;
node->getWorldVolume(world_vol);
Pnt3f center = world_vol->getCenter();
Real32 radius = world_vol->getMax()[0] - center[0];
Your solution would give you bigger spheres, as the extend has to be
conservative.
Hope it helps
Dirk
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