函数 getGroundTerrainDistance

getGroundTerrainDistance(
    viewer: Viewer,
    startP: ESJVector3D,
    endP: ESJVector3D,
): Promise<number>
计算两点贴地形距离
参数
- viewer: Viewer
- startP: ESJVector3D
- endP: ESJVector3D
返回 Promise<number>
- 定义于 earthsdk/earthsdk3-cesium/src/utils/base/core.ts:30