Hi All, I have a surface where a user can pick points. As suggested I used a Geode with Geometry built with osg::PrimitiveSet::POINTS and verteices. Then I used PointSprite to show an image on each point (but I think this is not really important).
Now I need to drag points with the mouse. First of all I have to handle the mouse move event to understand on which point the mouse is over. And now the problem. Given the mouse is over one of the previously picked points, how can I get which is the exact point of the Geometry from a osgUtil::PolytopeIntersector? The Intersection object contains a nodePath that at least refers to the Geometry node, not the single vertex/point. So I guess I have to loop over the actual picked points coordinates (i.e. geometry->getVertexArray()) and calculate the distance from the intersection.localIntersectionPoint. Is that right or is there a better way to implement it? Cheers, Gianni ------------------ Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=61962#61962 _______________________________________________ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
