1 var viewer = new Cesium.Viewer(‘cesiumContainer‘, { 2      //Start in Columbus Viewer 3      sceneMode : Cesium.SceneMode.COLUMBUS_VIEW,  // 设定3维地图的默认场景模式 4      //Use standard Cesium terrain 5      terrainProvider : new Cesium.CesiumTerrainProvider({    // 构建地形服务 6      　　　　 url : ‘//cesiumjs.org/smallterrain‘, 7      　　　　 credit : ‘Terrain data courtesy Analytical Graphics, Inc.‘ 8      }), 9      *     //Hide the base layer picker10      *     baseLayerPicker : false,     // 设定基本图层提供不显示11      *     //Use OpenStreetMaps12      *     imageryProvider : new Cesium.OpenStreetMapImageryProvider({  // 调用openstreetmap瓦片服务13      *         url : ‘//a.tile.openstreetmap.org/‘14      *     }),15      *     // Use high-res stars downloaded from https://github.com/AnalyticalGraphicsInc/cesium-assets16      *     skyBox : new Cesium.SkyBox({   // 设定近焦点和远焦点的x、y、z17      *         sources : {18      *           positiveX : ‘stars/TychoSkymapII.t3_08192x04096_80_px.jpg‘,19      *           negativeX : ‘stars/TychoSkymapII.t3_08192x04096_80_mx.jpg‘,20      *           positiveY : ‘stars/TychoSkymapII.t3_08192x04096_80_py.jpg‘,21      *           negativeY : ‘stars/TychoSkymapII.t3_08192x04096_80_my.jpg‘,22      *           positiveZ : ‘stars/TychoSkymapII.t3_08192x04096_80_pz.jpg‘,23      *           negativeZ : ‘stars/TychoSkymapII.t3_08192x04096_80_mz.jpg‘24      *         }25      *     }),26      *     // Show Columbus View map with Web Mercator projection27      *     mapProjection : new Cesium.WebMercatorProjection()  // 设定投影坐标28      * });