did you use osg::ref_ptr<> for your Manipulators? Otherwise they'll get
destroyed when overwritten.
regards Ralph
Stephane DUGUET schrieb:
> Hello all,
>
>
>
> I’m facing an issue with trackball manipulator.
>
> I want to toggle successively between a trackball manipulator and a
> tracker on 2 nodes.
>
> After a complete toggle loop, ie coming back to trackball I have a
> crash.(instance of Tman seem to be corrupted).
>
>
>
> Any idea of what I did wrong?
>
>
>
> Here is my code:
>
>
>
> void CameraInit()
>
> {
>
>
>
> double xl,yl;
>
> //init tracker to follow mobile 1
>
> keyswitchManipulator = new osgGA::KeySwitchMatrixManipulator;
>
> trackerMode1 = osgGA::NodeTrackerManipulator::NODE_CENTER_AND_AZIM;
>
> tm1 = new osgGA::NodeTrackerManipulator;
>
> tm1->setTrackerMode(trackerMode1);
>
> rotationMode1 = osgGA::NodeTrackerManipulator::ELEVATION_AZIM;
>
> rotationMode2 = osgGA::NodeTrackerManipulator::TRACKBALL;
>
> tm1->setRotationMode(rotationMode1);
>
> // scaler1 = new osg::MatrixTransform;
>
>
>
> //Trackball manager
>
> Tman = new osgGA::TrackballManipulator();
>
> /* x, y and z are retrieved by converting GPS to local*/
>
> latLon2xy(33.2940335740,-117.3636264412,xl,yl);
>
> Tman->setHomePosition(osg::Vec3d(xl+ 50.0, yl+50.0, 400.0),
>
> osg::Vec3d(xl+ 50.0, yl+ 50.0, 0.0),
>
> osg::Vec3d(0.0, 0.0, 1.0),
>
> false); // do not auto calculate home
>
>
>
> }
>
> void toggleView()
>
> {
>
> CurrentCamera++;
>
> switch (CurrentCamera)
>
> {
>
> case 0:
>
> {
>
> viewer.setCameraManipulator(Tman);
>
> }
>
> break;
>
> case 1:
>
> {
>
> tm1->setTrackNode(copterNode);
>
> viewer.setCameraManipulator(tm1);
>
> }
>
> break;
>
> case 2:
>
> {
>
> tm1->setTrackNode(tankNode);
>
> viewer.setCameraManipulator(tm1);
>
> CurrentCamera =-1;
>
> }
>
> break;
>
> default:
>
> break;
>
> }
>
> }
>
>
>
>
>
> Thanks a lot for your support,
>
>
>
> BR,
>
>
> Stephane
>
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