Your comments will be appreciated,Regards,
From: [email protected]
To: [email protected]
Date: Mon, 4 Aug 2014 10:18:39 +0100
Subject: [osg-users] Erratical behaviour with PolytopeIntersector
Dear All,
I'm experiencing very weird problem when using the polytope intersector. Since
there is not any explicit example on how to use polytope example with
rectangular selection I use osgPick example in OSG and modify the codes to suit
my need.
Normally the below code picks the objects on scene but shows that 400 picked
objects which is not correct and far beyond of scene object range where that I
have, I only have 5-6 object in scene,
What could be the reason of that malfunctioning ? I 'll appreciate your
guidance on that !.
case (osgGA::GUIEventAdapter::RELEASE): { if
(btn_counter == 1 ) { firstX = ea.getX();
firstY = ea.getY(); btn_counter = 2;
break; }
if (btn_counter==2) {
btn_counter = 1; osgUtil::PolytopeIntersector* polytop = new
osgUtil::PolytopeIntersector( osgUtil::Intersector::WINDOW, firstX,firstY,
ea.getX(), ea.getY() ); osgUtil::IntersectionVisitor
iv(polytop); view->getCamera()->accept(iv);
int k; if
(polytop->containsIntersections() ) {
osgUtil::PolytopeIntersector::Intersections
intersections= polytop->getIntersections();
osg::Vec3 screenpos = osg::Vec3(ea.getX(),ea.getY(),0);
for(osgUtil::PolytopeIntersector::Intersections::iterator hitr =
intersections.begin(); hitr !=
intersections.end(); ++hitr) {
k+=1; std::cout<< k << "----" <<
hitr->drawable->getName()<< hitr->drawable->className()<<"\n" ;
} } }
} } }};
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