如何设置跟随的观察视角在节点的某个位置

voovoo

1.         osg::ref_ptr<osgGA::NodeTrackerManipulator> tm=new osgGA::NodeTrackerManipulator;
   
2.                 tm->setTrackerMode(osgGA::NodeTrackerManipulator::NODE_CENTER_AND_ROTATION);
   
3.                 tm->setRotationMode(osgGA::NodeTrackerManipulator::TRACKBALL);
   
4.                 tm->setTrackNode(currentTrans->getChild(0));
   
5.                 viewer->setCameraManipulator(tm);

复制代码

其实就像模拟TRACKBALL的鼠标滚动左键右键及滚动效果

voovoo

tm->setRotationMode(osgGA::NodeTrackerManipulator::TRACKBALL); 想去掉这个，而是设置在currentTrans->getChild(0)这个节点的后面一个位置跟随移动