Re: [osg-users] IntersectVisitor does not recognize Nodes on different Projection
Hi Thorsten, Thorsten Werner schrieb: Hi, OK. Thank you. Got it working now. Changed setProjectionMatrixOrtho2D into setProjectionMatrixOrtho. Next problem that i have is that the Buttons in my SceneGraph consist of several geometries and the Button is a Geode but its not recognized as Geode. Only as several Geometries. I dont know how to solve this. After going through the API i found Geode-setNodeMask. Could this help maybe? Ive no idea what a nodemask is though... If you are looking for the Geode you can use the nodePath field of the Intersection result which contains the complete path leading to the hit geometry. NodeMasks are basically bitmasks that can be used in the context of intersection testing. You can set them using Node::setNodeMask() and search for Nodes matching a NodeMask using osgUtil::IntersectionVisitor::setTraversalMask(). But even using this method you still have to look in the NodePath to find your geode... Thank you! Cheers, Thorsten Cheers, Peter -- Vorstand/Board of Management: Dr. Bernd Finkbeiner, Dr. Roland Niemeier, Dr. Arno Steitz, Dr. Ingrid Zech Vorsitzender des Aufsichtsrats/ Chairman of the Supervisory Board: Michel Lepert Sitz/Registered Office: Tuebingen Registergericht/Registration Court: Stuttgart Registernummer/Commercial Register No.: HRB 382196 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] IntersectVisitor does not recognize Nodes on different Projection
Hi, OK. Thank you. Got it working now. Changed setProjectionMatrixOrtho2D into setProjectionMatrixOrtho. Next problem that i have is that the Buttons in my SceneGraph consist of several geometries and the Button is a Geode but its not recognized as Geode. Only as several Geometries. I dont know how to solve this. After going through the API i found Geode-setNodeMask. Could this help maybe? Ive no idea what a nodemask is though... Thank you! Cheers, Thorsten -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=20497#20497 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] IntersectVisitor does not recognize Nodes on different Projection
Hi Thorsten, Thorsten Werner schrieb: Hi, I've got a loaded model which is a child of the root. the second child of the root node is a ortho2d projection, which i use for the GUI. Now i've taken the example osgkeyboardmouse from the osg site and my problem is that it only catches intersections with the loaded model. Not with the Goedes which are at the Ortho2D ProjectionMatrix. double w(.05), h(.05); osgUtil::PolytopeIntersector* picker = new osgUtil::PolytopeIntersector( osgUtil::Intersector::PROJECTION, x-w, y-h, x+w, y+h); osgUtil::IntersectionVisitor iv(picker); viewer-getCamera()-accept(iv); this is how i configured the Visitor. I've tried to change the Intersector into a osg::Intersector::WINDOW. ut then absolutely nothing happens anymore. What kind of primitives are you trying to pick? For Triangles/Quads it is more efficient to use the LineSegementIntersector (which is the default when you start osgkeyboardmouse, you can toggle using 'p'). The osgpick example always uses the LineSegementIntersector. Assuming you want to use PolytopeIntersector, I have to say that it not work well when Projections are involved. To fix that properly we might need a completely different approach. As a workaround you could try to call PolytopeIntersector on your (unprojected) HUD-Node directly and see if it helps. Thanks in advance. Cheers, Thorsten Cheers Peter -- Vorstand/Board of Management: Dr. Bernd Finkbeiner, Dr. Roland Niemeier, Dr. Arno Steitz, Dr. Ingrid Zech Vorsitzender des Aufsichtsrats/ Chairman of the Supervisory Board: Michel Lepert Sitz/Registered Office: Tuebingen Registergericht/Registration Court: Stuttgart Registernummer/Commercial Register No.: HRB 382196 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] IntersectVisitor does not recognize Nodes on different Projection
Hi, Thanks for the tip but i dont see the difference which makes it work and mine not. Ive changed some parts of my code but i in my opinion it should work. Any further help is highly anticipated. Thank you! Cheers, Thorsten -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=20374#20374 Attachments: http://forum.openscenegraph.org//files/tgeventhandler_168.hpp http://forum.openscenegraph.org//files/thyrgon_624.cpp ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] IntersectVisitor does not recognize Nodes on different Projection
Hi, I've got a loaded model which is a child of the root. the second child of the root node is a ortho2d projection, which i use for the GUI. Now i've taken the example osgkeyboardmouse from the osg site and my problem is that it only catches intersections with the loaded model. Not with the Goedes which are at the Ortho2D ProjectionMatrix. double w(.05), h(.05); osgUtil::PolytopeIntersector* picker = new osgUtil::PolytopeIntersector( osgUtil::Intersector::PROJECTION, x-w, y-h, x+w, y+h); osgUtil::IntersectionVisitor iv(picker); viewer-getCamera()-accept(iv); this is how i configured the Visitor. I've tried to change the Intersector into a osg::Intersector::WINDOW. ut then absolutely nothing happens anymore. Thanks in advance. Cheers, Thorsten -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=20283#20283 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
