FGFS-4.1/OpenSceneGraph
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Added test of picking

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This commit is contained in:
Robert Osfield 2019-07-15 16:13:57 +01:00
parent d24fd451b9
commit a15ca9c8c4
1 changed files with 26 additions and 2 deletions
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28
examples/osgtext3D/osgtext3D.cpp
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@ -43,9 +43,15 @@ public:
{
}
virtual bool handle(const osgGA::GUIEventAdapter& ea, osgGA::GUIActionAdapter&)
virtual bool handle(const osgGA::GUIEventAdapter& ea, osgGA::GUIActionAdapter& aa)
{
if (ea.getEventType() == osgGA::GUIEventAdapter::KEYUP)
if (ea.getEventType() == osgGA::GUIEventAdapter::PUSH)
{
osgViewer::View* view = dynamic_cast<osgViewer::View*>(&aa);
if (view) pick(view,ea);
return false;
}
else if (ea.getEventType() == osgGA::GUIEventAdapter::KEYUP)
{
if (ea.getKey() == osgGA::GUIEventAdapter::KEY_Up)
{
@ -83,6 +89,24 @@ public:
return false;
}
void pick(osgViewer::View* view, const osgGA::GUIEventAdapter& ea)
{
osgUtil::LineSegmentIntersector::Intersections intersections;
if (view->computeIntersections(ea, intersections))
{
OSG_NOTICE<<"found intersections : "<<std::endl;
for(osgUtil::LineSegmentIntersector::Intersections::iterator itr = intersections.begin();
itr != intersections.end();
++itr)
{
OSG_NOTICE<<" intersection "<<itr->localIntersectionPoint<<std::endl;
}
}
else
{
OSG_NOTICE<<"failed to get intersection "<<std::endl;
}
}
private:
osgText::Text3D* m_Text3D;
};