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Updates to the osgpick code.

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Updates to osgGA::CameraManipulors.
This commit is contained in:
Robert Osfield
2003-04-14 15:44:30 +00:00
parent b66f464a1b
commit 5df7118d6d
10 changed files with 134 additions and 111 deletions
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52
include/osgUtil/PickVisitor
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@@ -26,40 +26,44 @@
namespace osgUtil {
// PickIntersectVisitor simplifies picking - routines take x,y mouse pixel & detect hits
class OSGUTIL_EXPORT PickIntersectVisitor : public IntersectVisitor {
class OSGUTIL_EXPORT PickIntersectVisitor : public IntersectVisitor
{
public:
PickIntersectVisitor() {
setNodeMaskOverride(0xffffffff); // need to make the visitor override the nodemask to visit invisible actions
}
~PickIntersectVisitor() { }
HitList& getHits(osgUtil::SceneView *, int x, int y);
HitList& PickIntersectVisitor::getIntersections(osg::Node *scene, osg::Vec3 nr, osg::Vec3 fr);
PickIntersectVisitor()
{
setNodeMaskOverride(0xffffffff); // need to make the visitor override the nodemask to visit invisible actions
}
~PickIntersectVisitor() { }
HitList& getHits(osgUtil::SceneView *, int x, int y);
HitList& PickIntersectVisitor::getIntersections(osg::Node *scene, osg::Vec3 nr, osg::Vec3 fr);
private:
osg::ref_ptr<osg::LineSegment> _lineSegment;
osg::ref_ptr<osg::LineSegment> _lineSegment;
friend class osgUtil::IntersectVisitor;
};
// PickVisitor traverses whole scene and checks below all Projection nodes
class OSGUTIL_EXPORT PickVisitor : public osg::NodeVisitor {
class OSGUTIL_EXPORT PickVisitor : public osg::NodeVisitor
{
public:
PickVisitor() {
xp=yp=0;
setNodeMaskOverride(0xffffffff); // need to make the visitor override the nodemask to visit invisible actions
setTraversalMode(osg::NodeVisitor::TRAVERSE_ALL_CHILDREN);
}
~PickVisitor() { }
PickVisitor()
{
xp=yp=0;
setNodeMaskOverride(0xffffffff); // need to make the visitor override the nodemask to visit invisible actions
setTraversalMode(osg::NodeVisitor::TRAVERSE_ALL_CHILDREN);
}
~PickVisitor() { }
virtual void apply(osg::Projection& pr);
osgUtil::IntersectVisitor::HitList& getHits(osg::Node *nd, const osg::Matrix &projm, const float x, const float y);
osgUtil::IntersectVisitor::HitList& getHits(osgUtil::SceneView *, double x, double y);
osgUtil::IntersectVisitor::HitList & getHits(osg::Node *nd, const osg::Vec3 near_point, const osg::Vec3 far_point);
osgUtil::IntersectVisitor::HitList& getHits(void);
inline void setxy(float xpt, float ypt) { xp=xpt; yp=ypt; }
inline bool hits() { return _PIVsegHitList.size()>0;}
osgUtil::IntersectVisitor::HitList& getHits(osg::Node *nd, const osg::Matrix &projm, const float x, const float y);
osgUtil::IntersectVisitor::HitList& getHits(osgUtil::SceneView *, double x, double y);
osgUtil::IntersectVisitor::HitList & getHits(osg::Node *nd, const osg::Vec3 near_point, const osg::Vec3 far_point);
osgUtil::IntersectVisitor::HitList& getHits(void);
inline void setxy(float xpt, float ypt) { xp=xpt; yp=ypt; }
inline bool hits() { return _PIVsegHitList.size()>0;}
private:
PickIntersectVisitor _piv;
float xp, yp; // start point in viewport fraction coordiantes
PickIntersectVisitor _piv;
float xp, yp; // start point in viewport fraction coordiantes
osgUtil::IntersectVisitor::HitList _PIVsegHitList;
};
}// namespace osgUtil
#endif // match OSGUTIL_PICKINTERSECTVISITOR
#endif // match OSGUTIL_PICKINTERSECTVISITOR