直接上代码:
osg::ref_ptr<osg::Group> createMatrix() {
osg::ref_ptr<osg::Group> root = new osg::Group;
osg::ref_ptr<osg::Node> node1 = new osg::Node;
node1 = osgDB::readNodeFile("xyz.osgt");
osg::ref_ptr<osg::MatrixTransform> trans = new osg::MatrixTransform;
trans->setUpdateCallback(new osg::AnimationPathCallback(osg::Vec3(0.0, 0.0, 0.0), osg::Z_AXIS, 1.0));
osg::ref_ptr<osg::MatrixTransform> trans2 = new osg::MatrixTransform;
trans2->setMatrix(osg::Matrix::translate(1.2, 0.0, 0.0));
trans2->addChild(node1.get());
trans->addChild(trans2.get());
osg::ref_ptr<osg::MatrixTransform> max3 = new osg::MatrixTransform;
max3->setUpdateCallback(new osg::AnimationPathCallback(osg::Vec3(5.0, 0.0, 0.0), osg::X_AXIS, 5.0));
osg::ref_ptr<osg::MatrixTransform> max4 = new osg::MatrixTransform;
max4->addChild(node1.get());
max4->setMatrix(osg::Matrix::translate(2.0, 0.0, 0.0));
max3->addChild(max4.get());
root->addChild(node1.get());
root->addChild(trans.get());
root->addChild(max3.get());
return root;
}
int main(int argc, char** argv) {
osg::ref_ptr<osgViewer::Viewer> viewer = new osgViewer::Viewer();
viewer->addEventHandler(new osgViewer::WindowSizeHandler);
viewer->addEventHandler(new osgViewer::StatsHandler);
osg::ref_ptr<osg::Group> root = new osg::Group;
root->addChild(createMatrix());
viewer->setSceneData(root);
viewer->realize();
viewer->run();
return 0;
}
运行效果: