#include <osgEarthDrivers/model_simple/SimpleModelOptions>
SimpleModelOptions modelOptions;
modelOptions.url() = "cow.osg.(100,100,100).scale";
modelOptions.location() = osg::Vec3(116, 40, 100);//北京地区坐标
map->addModelLayer(new ModelLayer("model layer", modelOptions));
//视点定位北京地区
osgEarth::Viewpoint vp("", 116, 40, 0.0, -2.50, -90.0, 1.5e6);
(dynamic_cast<EarthManipulator*>(viewer.getCameraManipulator()))->setViewpoint(vp);
有时候模型没有纹理，需要.osgearth_shadergen插件
osg::Node* cessna = osgDB::readNodeFile("data/model/su33.ive.osgearth_shadergen.1.scale");