Sorry, Are you mixing debug and release libraries from OSG? Check you are linking with either all release or all debug.
Martin -----Original Message----- From: osg-users-boun...@lists.openscenegraph.org [mailto:osg-users-boun...@lists.openscenegraph.org] On Behalf Of Martin Naylor Sent: 12 May 2010 17:16 To: osg-users@lists.openscenegraph.org Subject: Re: [osg-users] problem with osgUtil::IntersectVisitor and osg::LineSegment Hi Oliver, Are mixing debug and release libraries? Regards Martin. -----Original Message----- From: osg-users-boun...@lists.openscenegraph.org [mailto:osg-users-boun...@lists.openscenegraph.org] On Behalf Of Olivier Martinaud Sent: 12 May 2010 14:33 To: osg-users@lists.openscenegraph.org Subject: [osg-users] problem with osgUtil::IntersectVisitor and osg::LineSegment Hi, I'm having some trouble implementing an intersection detection method. I have a model of a building and I'd like to get the coordinates of the intersection points between the model and a ray. I wrote the following code from osg samples online. 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... When I execute the code I have this error : unhandled exception at 0x100042aa in OSGDefaultProject.exe : 0xC0000005: access violation when reading 0xfeeeff36. The problem comes from the last line of the code (getWorldIntersectionPoint()). What's weird is that the iv finds 6 points of intersection, so the algorithm seems to work fine. But the size of my hitlist is abnormally large : it says more than 4 billion ! Thank you! Cheers, Olivier ------------------ Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=27798#27798 _______________________________________________ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org _______________________________________________ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org _______________________________________________ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
