/// <summary> /// 将BD-09坐标转换成GCJ-02坐标 /// </summary> /// <param name="bdPoint">BD-09坐标</param> /// <returns>GCJ-02坐标</returns> public static LatLngPoint BD09ToGCJ02(LatLngPoint bdPoint) { LatLngPoint _gcjPoint = new LatLngPoint(); double _x = bdPoint.LonX - 0.0065, _y = bdPoint.LatY - 0.006; double _z = Math.Sqrt(_x * _x + _y * _y) - 0.00002 * Math.Sin(_y * x_pi); double _theta = Math.Atan2(_y, _x) - 0.000003 * Math.Cos(_x * x_pi); _gcjPoint.LonX = _z * Math.Cos(_theta); _gcjPoint.LatY = _z * Math.Sin(_theta); return(_gcjPoint); }
/// <summary> /// 将GCJ-02坐标转换成BD-09坐标 /// </summary> /// <param name="gcjPoint">GCJ-02坐标</param> /// <returns>BD-09坐标</returns> public static LatLngPoint GCJ02ToBD09(LatLngPoint gcjPoint) { LatLngPoint _bdPoint = new LatLngPoint(); double _x = gcjPoint.LonX, y = gcjPoint.LatY; double _z = Math.Sqrt(_x * _x + y * y) + 0.00002 * Math.Sin(y * x_pi); double _theta = Math.Atan2(y, _x) + 0.000003 * Math.Cos(_x * x_pi); _bdPoint.LonX = _z * Math.Cos(_theta) + 0.0065; _bdPoint.LatY = _z * Math.Cos(_theta) + 0.006; return(_bdPoint); }