Hi, I haven't done this myself, but I believe the PolytopeIntersector will give you a list of points you are after. You need to define the planes that make up your volume and then use an IntersectionVisitor with the PolytopeIntersector to intersect agains your terrain. From there you can retrieve the intersection points. I know something similar is done in the osgSim::OverlayNode though I think its usage is more complex than yours.
Cheers, Brad -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Roman Grigoriev Sent: Saturday, 16 October 2010 1:32 AM To: [email protected] Subject: [osg-users] Intersecting volumes and terrain Hi, I generate terrain using VPB and need to implement intersection lines like on attached picture (green lines that shows intersecton between cone and terrain). Could someone please give me a hint how to make it using osg? Thank you! Cheers, Roman ------------------ Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=32788#32788 Attachments: http://forum.openscenegraph.org//files/1_201.jpg _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org DISCLAIMER:--------------------------------------------------------------------------- This e-mail transmission and any documents, files and previous e-mail messages attached to it are private and confidential. They may contain proprietary or copyright material or information that is subject to legal professional privilege. They are for the use of the intended recipient only. Any unauthorised viewing, use, disclosure, copying, alteration, storage or distribution of, or reliance on, this message is strictly prohibited. No part may be reproduced, adapted or transmitted without the written permission of the owner. If you have received this transmission in error, or are not an authorised recipient, please immediately notify the sender by return email, delete this message and all copies from your e-mail system, and destroy any printed copies. Receipt by anyone other than the intended recipient should not be deemed a waiver of any privilege or protection. Thales Australia does not warrant or represent that this e-mail or any documents, files and previous e-mail messages attached are error or virus free. -------------------------------------------------------------------------------------- _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
