Hi Christian, The only reason I'd expect this not to work would be if a CameraManipulator is attached to the viewer and this is overriding the values you are setting. Your code segment isn't attaching a CameraManipulator so I wouldn't expect this to be an issue, however if you call viewer.run() it will attach a TrackballManipultaor.
Robert. On 21 June 2012 11:52, Christian Wolf <[email protected]> wrote: > Hi, > > i have tried to move the Camera in my scene with the keyboard. > I have created a subclass of the GUIEventHandler()-Class and i have > overridden the handle()-funtion. I want to use the UP/DOWN/LEFT/RIGHT > Buttons. I can see on the console that if i press one of these Buttons that i > get the correct cout Statement that i have implentet in the > switch/case-Statement for every button. But it seems that the > viewer->getCamera()->setViewMatrixAsLookAt(...) does not do anything. > > Can someone give me a hint what is wrong??? > Here is the Code. And sorry for my bad English. ;) > > class KeyboardEventHandler: public osgGA::GUIEventHandler { > public: > KeyboardEventHandler(){} > ~KeyboardEventHandler(){} > > virtual bool handle(const osgGA::GUIEventAdapter& ea, > osgGA::GUIActionAdapter& us) { > > osgViewer::Viewer *viewer = dynamic_cast<osgViewer::Viewer*>(&us); > viewer->getCamera()->setAllowEventFocus(false); > osg::Vec3 eye(1.0, 10.0, -3.0); > osg::Vec3 center(2.0, 0.0, -2.0); > osg::Vec3 up(1.0, 0.0, 0.0); > > viewer->getCamera()->setViewMatrixAsLookAt(eye, center, up); > switch(ea.getKey()) { > > case(osgGA::GUIEventAdapter::KEY_Down): { > viewer->getCamera()->setViewMatrixAsLookAt(osg::Vec3(1.0, 15.0, -3.0), > osg::Vec3(2.0, 0.0, -2.0), osg::Vec3(1.0, 0.0, 0.0)); > std::cout << "down" << endl; > return true; > } > > case(osgGA::GUIEventAdapter::KEY_Up): { > std::cout << "up" << endl; > return true; > } > > case(osgGA::GUIEventAdapter::KEY_Left): { > cout << "left" << endl; > return true; > } > > case(osgGA::GUIEventAdapter::KEY_Right): { > cout << "right" << endl; > return true; > } > > default: > return false; > } > } > }; > > //main.cpp > > osgViewer::Viewer viewer; > viewer.setSceneData(root); > viewer.addEventHandler(new KeyboardEventHandler); > viewer.realize(); > while(!viewer.done()) { > viewer.frame(); > } > > > > Thank you very much! > > Cheers, > Christian Wolf > > ------------------ > Read this topic online here: > http://forum.openscenegraph.org/viewtopic.php?p=48405#48405 > > > > > > _______________________________________________ > osg-users mailing list > [email protected] > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
