Rex引擎原理分析（一二七）影像层属性配置

 <image name="mapbox_satellite" driver="xyz">

    
     <url>http://online2.map.bdimg.com/tile/?qt=tile&x={x}&y={y}&z={z}&styles=pl&udt=20171031&scaler=1&p=1</url>
    
     <profile>global-geodetic
    
     	<num_tiles_wide_at_lod_0>8</num_tiles_wide_at_lod_0>
    
 			  	<num_tiles_high_at_lod_0>8</num_tiles_high_at_lod_0>  
    
     </profile>            
    
 </image>

 osgEarthDrivers/earth/EarthFileSerializers2.cpp

    
     bool addLayer(const Config& conf,