Hi Jacob, Also use a conditional after a dynamic_cast<> otherwise you may well be operating on a NULL pointer as this is what C++ will pass back to you when the object isn't of the type you want.
To find the node you want it easiest to just write a custom NodeVisitor that searches through the scene graph and at each Goede it encounters do what you need to do. Do a search through the examples to find places where NodeVisitor is subclassed. Look for ones that have an apply(osg::Geode& ) as this will be very close to what you need. Robert On Fri, Apr 11, 2008 at 6:10 PM, Jacob Huckaby <[EMAIL PROTECTED]> wrote: > Hi, > > Quick question (at least I hope it is.) I am trying to find the Drawable > inside a Node that I read from a file, to which I can apply a custom > TriangleIntersector. I have tried casting the Node as a Geode, and using > getDrawable(), but it crashes on the getDrawable(). Here is the code I am > trying: > > osg::Geode* geode = dynamic_cast<osg::Geode*> (node); > osg::Drawable* drawable = geode->getDrawable(0); > drawable->accept(ti); > > I have been able to make this work with Shapes that I have put into > ShapeDrawables: > > osg::Box* box = new > osg::Box(osg::Vec3(1.0f,1.0f,1.0f),1.0f,1.0f,1.0f); > osg::ShapeDrawable* drawable = new osg::ShapeDrawable(box); > drawable->accept(ti); > > My question: how can I get access to the Drawable in my Node (so that I > can apply my TriangleIntersector)? It is only a single node. If you have any > advice, I would greatly appreciate it. Thank you, > > Jake > > > _______________________________________________ > osg-users mailing list > [email protected] > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > >
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