FGFS-4.1/OpenSceneGraph
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Added osgPresentation::Cursor class to wrap up 3D cursor in the scene functionality

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Robert Osfield
2013-08-08 16:49:33 +00:00
parent 835ee7aa8e
commit 82401defc7
4 changed files with 339 additions and 3 deletions
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43
applications/present3D/present3D.cpp
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@@ -40,6 +40,7 @@
#include <osgPresentation/SlideEventHandler>
#include <osgPresentation/SlideShowConstructor>
#include <osgPresentation/Cursor>
#include "ReadShowFile.h"
#include "PointsEventHandler.h"
@@ -180,12 +181,42 @@ class FollowMouseCallback: public osgGA::GUIEventHandler
osg::notify(level)<<"ea.getYmax()="<<ea.getYmax()<<std::endl;
_mousePostition.set(ea.getXnormalized(), ea.getYnormalized());
#if 1
if (ea.getNumPointerData()>=1)
{
const osgGA::PointerData* pd = ea.getPointerData(ea.getNumPointerData()-1);
osg::Camera* camera = dynamic_cast<osg::Camera*>(pd->object.get());
OSG_NOTICE<<"Camera "<<camera<<", xNormalized() = "<<pd->getXnormalized()<<", yNormalized() = "<<pd->getYnormalized()<<std::endl;
_mousePostition.set(pd->getXnormalized(), pd->getYnormalized());
_camera = camera;
}
#endif
break;
case(osgGA::GUIEventAdapter::FRAME):
{
osgViewer::View* view = dynamic_cast<osgViewer::View*>(&aa);
if (_camera.valid())
{
osg::Matrix VP = _camera->getViewMatrix() * _camera->getProjectionMatrix();
osg::Matrix inverse_VP;
inverse_VP.invert(VP);
osg::Vec3d start_eye(_mousePostition.x(), _mousePostition.y(), 0.0);
osg::Vec3d end_eye(_mousePostition.x(), _mousePostition.y(), 1.0);
osg::Vec3d start_world = start_eye * inverse_VP;
osg::Vec3d end_world = start_eye * inverse_VP;
OSG_NOTICE<<"start_world="<<start_world<<std::endl;
OSG_NOTICE<<"end_world="<<end_world<<std::endl;
if (end_world.valid()) transform->setPosition(end_world);
}
#if 0
osgViewer::View* view = dynamic_cast<osgViewer::View*>(&aa);
osg::Camera* camera = view->getCamera();
osg::Matrix VP = camera->getViewMatrix() * camera->getProjectionMatrix();
@@ -207,7 +238,7 @@ class FollowMouseCallback: public osgGA::GUIEventHandler
{
OSG_NOTICE<<"Ignoring invalid end_world position"<<std::endl;
}
#endif
break;
}
case(osgGA::GUIEventAdapter::KEYDOWN):
@@ -237,6 +268,7 @@ class FollowMouseCallback: public osgGA::GUIEventHandler
}
osg::Vec2d _mousePostition;
osg::observer_ptr<osg::Camera> _camera;
};
osg::Node* createCursorSubgraph(const std::string& filename, float size)
@@ -300,7 +332,12 @@ void processLoadedModel(osg::ref_ptr<osg::Node>& loadedModel, int optimizer_opti
{
osg::ref_ptr<osg::Group> group = new osg::Group;
group->addChild(loadedModel.get());
group->addChild(createCursorSubgraph(cursorFileName, 0.05f));
#if 1
OSG_NOTICE<<"Creating Cursor"<<std::endl;
group->addChild(new osgPresentation::Cursor(cursorFileName, 20.0f));
#else
group->addChild(createCursorSubgraph(cursorFileName, 20.0f));
#endif
loadedModel = group;
}
}