Hi Oliver, Mmmm isn't IntersectVisitor Depreciated, not sure what version that was? Try IntersectionVisitor instead? http://www.openscenegraph.org/projects/osg/wiki/Support/Tutorials/Intersecti ons
Maybe Robert can advise :) ? Martin. -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Olivier Martinaud Sent: 17 May 2010 18:09 To: [email protected] Subject: Re: [osg-users] problem with osgUtil::IntersectVisitor and osg::LineSegment Hello Martin, I'm using osg version 2.8.3 with visual C++ express, and my os is windows xp. I also tried the basic examples I could find on tutorials and on the osg website but I still have the same problem :(. I guess it comes from my configuration. I used this tutorial to install osg : http://dwightdesign.com/2009/05/installing-openscenegraph-280/. I used the prebuilt version of osg. Everything I tried on osg worked perfectly except for this function (I also tried polytope intersector, height above terrain... but I got the same error). You're right it looks like the program is allocating all the memory to the hitlist (the size is over 4 billion). However it looks like the apply method works : I've fot a number of intersections but I just can't have access to the intersection points coordinates. The code is as follows. m_node points to a model I loaded. The model works fine (it's basically a set of (a lot of) points joined by panels). osg::LineSegment *ls = new osg::LineSegment(osg::Vec3d(-5,-5,-5),osg::Vec3d(5,5,5)); osgUtil::IntersectVisitor *iv = new osgUtil::IntersectVisitor(); iv->addLineSegment(ls); iv->apply(*m_node); std::cout << iv->getNumHits(ls) << " intersection points (hits)." << std::endl; //result = 6 osgUtil::IntersectVisitor::HitList& hitlist = iv->getHitList(ls); std::cout << "size : " << hitlist.size() << std::endl; //std::vector<osgUtil::Hit>::iterator itr = hitlist.begin(); hitlist[0].getWorldIntersectPoint(); //causes unhandled exception... Thanks for your help, Olivier ------------------ Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=27950#27950 _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
