osg::ref_ptr<osg::Node> OSG_Qt_::operateMatrix() { osg::ref_ptr<osg::Group> group = new osg::Group; osg::ref_ptr<osg::Node> node = osgDB::readNodeFile("D:\参考手册\BIM\osg\tanker.OSGB"); //return node; group->addChild(node); return group; }