Hi Martin, Repeating the same question multiple times under different headings isn't going to do you any favours, it just clogs up the mailing list/forum and provides no clear thread for any discussion.
As for the answer to your question, the only way I can answer it definitively would be to do a code review to see what exactly happens with ABSOLUTE_RF would be encountered - you have the access to the OSG code so there isn't aything stopping you stepping through the code for a definitive explanation either. Off the top of my head I don't think it'll work without some form of caching of the original LineSegment in window coordinates and then re-projecting, but I don't recall the IntersectionVisitor/LineSegmentIntersector doing this - it's not a straight forward workaround to putting absolute transforms in the scene graph. If you are putting absolutely transforms in the scene graph then it way be an indication that perhaps you should split up the scene graph so the absolute subgraph is placed under it's own View or at least slave Camera up at the viewer. This way the viewer can manage the different projection into the subgraphs coordinates without any "clever" workarounds. You don't say anything about why you are using an absolute transforms so can't say whether the viewer level approach would be suitable. Robert. On 6 October 2014 19:34, Martin Ferry <[email protected]> wrote: > Hi, > > I have graph with MatrixTransform as ABSOLUTE_RF and I can't pick node > with this type of ref. It si posible pick this node ? or I am doing > something wrong ? > > bool Picker::handle( const osgGA::GUIEventAdapter& ea, > osgGA::GUIActionAdapter& aa ) > { > if (ea.getEventType()==osgGA::GUIEventAdapter::PUSH && > ea.getButton()==osgGA::GUIEventAdapter::LEFT_MOUSE_BUTTON ) > { > osgViewer::View* viewer = > dynamic_cast<osgViewer::View*>(&aa); > if ( viewer ) > { > osg::ref_ptr<osgUtil::LineSegmentIntersector> > intersector = > new > osgUtil::LineSegmentIntersector(osgUtil::Intersector::WINDOW, ea.getX(), > ea.getY()); > > osgUtil::IntersectionVisitor iv( intersector.get() > ); > > viewer->getCamera()->accept( iv ); > > if ( intersector->containsIntersections() ) > { > > osgUtil::LineSegmentIntersector::Intersection result = > *(intersector->getIntersections().begin()); > doUserOperations( result ); > } > } > } > return false; > } > Thank you! > > Cheers, > Martin > > ------------------ > Read this topic online here: > http://forum.openscenegraph.org/viewtopic.php?p=61253#61253 > > > > > > _______________________________________________ > osg-users mailing list > [email protected] > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org >
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