Hi Heiko, I'm afraid I can't work out what is going on from your description so the best I can do is provide some general suggestions.
First up only polygonal meshes can be interested by LineSegmentIntersector, so point clouds and lines will not return intersections. Secondly the intersections you get returned return the leaf node and drawable that is intersected along with the node path from the root of the intersection traversal down to the leaf node that was intersected. Robert. On Sun, Feb 6, 2011 at 11:12 PM, Heiko Thiel <osgfo...@tevs.eu> wrote: > Hi, > > I have a simple question to LineSegmentIntersector: Which objects can be > intersect with the test ray? > > I ask because I have following problem: I have following osg tree: > > - Geode <-Field > - Node (Model loaded from disc) <- Contains Name "obj1" by Model (so not set > by my -> don't want to presume that the name is everytime same) > - Geode (single quad of the ground of terrain) <- Name: "Ground" > - Geometry (4 vertices) > > If I do now a klick I got following names returned: obj1, obj1, obj, ..., > Ground (Model is a Firetree -> many intersections). But never the name > "Field". So the problem is: I can't assume that the Model has name "obj1". > That is why I think I must additional geode around it with an extra class, so > I can check with dynamic_cast if the test ray had found an interesting object > or not. But this don't work, if I dont get the Field-Geode returned. > > How to handle this problem? (osgPick-Demo is to simple to see a solution :( ) > > Thank you! > > Cheers, > Heiko > > ------------------ > Read this topic online here: > http://forum.openscenegraph.org/viewtopic.php?p=36399#36399 > > > > > > _______________________________________________ > 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
