Danny Lesnik wrote:
I just can't realize I have only one object its bs radius os 43. what is the object that I can intersect with on x =12,5?
There supposed to be nothing.
Thank you!
The only suggestion I have is to check out what is really going on by
writing a small OSG app that shows both your model and the bounding
sphere (using e.g. osg::Sphere and an osg::ShapeDrawable). Here, let me
do it for you :) (see attachement)
Paul
/* Show the bouding sphere for a given scenegraph
*
* Paul E.C. Melis (p.e.c.me...@alumnus.utwente.nl),
* August 2009
*
* g++ -g -o ob osgbound.cpp -I ~/osg2.8/include/ -L ~/osg2.8/lib/ -losg -losgDB -losgViewer -losgUtil -losgGA -losgText
*/
#include <osg/PolygonMode>
#include <osg/Shape>
#include <osg/ShapeDrawable>
#include <osgDB/ReadFile>
#include <osgViewer/Viewer>
class UpdateBoundCallback : public osg::NodeCallback
{
public:
UpdateBoundCallback(osg::Sphere* s)
{
sphere = s;
}
virtual void operator()(osg::Node *node, osg::NodeVisitor *nv)
{
osg::BoundingSphere bound = node->getBound();
sphere->set(bound.center(), bound.radius());
}
osg::ref_ptr<osg::Sphere> sphere;
};
int
main(int argc, char *argv[])
{
osg::ref_ptr<osg::Node> model;
osg::ref_ptr<osg::Group> root;
if (--argc != 1)
return 0;
model = osgDB::readNodeFile(argv[1]);
root = new osg::Group;
root->addChild(model.get());
osg::BoundingSphere bs = model->getBound();
osg::Sphere *sphere = new osg::Sphere(bs.center(), bs.radius());
osg::ShapeDrawable *shape = new osg::ShapeDrawable(sphere);
shape->setUseDisplayList(false);
model->setUpdateCallback(new UpdateBoundCallback(sphere));
osg::Geode *geode = new osg::Geode;
geode->addDrawable(shape);
osg::PolygonMode *polymode = new osg::PolygonMode;
polymode->setMode(osg::PolygonMode::FRONT_AND_BACK, osg::PolygonMode::LINE);
geode->getOrCreateStateSet()->setAttributeAndModes(polymode, osg::StateAttribute::OVERRIDE|osg::StateAttribute::ON);
root->addChild(geode);
osgViewer::Viewer viewer;
viewer.setSceneData(root.get());
viewer.realize();
return viewer.run();
}
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