Cesium 根据经纬度获取地形高程

标题 Cesium 根据经纬度获取地形高程

var positions = Cesium.Cartographic.fromDegrees(lon, lat);
Cesium.when(new Cesium.sampleTerrain(window.cfglobe._viewer.terrainProvider, level, [positions]),                 function (updatedPositions) {
 self.height = updatedPositions[0].height;
})