osgEarth中怎么添加点符号？线符号和面符号都添加成功了

查无此人

        osg::ref_ptr<osgEarth::Features::Feature> _pointFeature=new Feature(new PointSet(),mapNode->getMapSRS());
        _pointFeature->getGeometry()->push_back(osg::Vec3d(120,30,0));
        PointSymbol* ps=_pointFeature->style()->getOrCreate<PointSymbol>();
        ps->size()=4.0;
        ps->fill()->color()=Color::Yellow;
        _pointFeature->style()->add(ps);
        osg::ref_ptr<osgEarth::Annotation::FeatureNode> _pointFeatureNode=new FeatureNode(mapNode,_pointFeature.get());
        _pointFeatureNode->getOrCreateStateSet()->setMode(GL_LIGHTING,osg::StateAttribute::OFF);
        group->addChild(_pointFeatureNode.get());

以前用的osgEarth2.3，现在代码要改吗？

foeming

线符号和面符号,添加成功，讲讲是如何添加的呗，最近也在纠结这个