osg学习笔记2, 命令行参数解析器ArgumentParser

#include <osgDB/ReadFile>
#include <osgViewer/Viewer>

int main(int argc, char **argv)
{
    //命令行参数读取
    osg::ArgumentParser arguments(&argc, argv);
    std::string filename;
    arguments.read("--model", filename);

    osg::ref_ptr<osg::Node> root = osgDB::readNodeFile(filename);
    osgViewer::Viewer viewer;
    viewer.setSceneData(root.get());
    return viewer.run();
}