/// <summary>
/// (BD-09)-->GPS84
/// </summary>
/// <param name="bd_lat"></param>
/// <param name="bd_lon"></param>
/// <returns></returns>
public static Gps BD09_To_GPS84(double bd_lat, double bd_lon)
{
Gps gcj02 = BD09_To_GCJ02(bd_lat, bd_lon);
Gps map84 = GCJ02_To_GPS84(gcj02.Lat, gcj02.Lng);
return(map84);
}
/// <summary>
/// 火星坐标系 (GCJ-02) to 84
/// </summary>
/// <param name="lat"></param>
/// <param name="lon"></param>
/// <returns></returns>
public static Gps GCJ02_To_GPS84(double lat, double lon)
{
Gps gps = Transform(lat, lon);
double lontitude = lon * 2 - gps.Lng;
double latitude = lat * 2 - gps.Lat;
return(new Gps(latitude, lontitude));
}