public bool IfIntersect(LineEntity Left, LineEntity Right)
{

            Position A = Left.X;
            Position B = Left.Y;
            Position C = Right.X;
            Position D = Right.Y;

            return CheckIntersect1(A.Longitude, B.Longitude, C.Longitude, D.Longitude)
&& CheckIntersect1(A.Latitude, B.Latitude, C.Latitude, D.Latitude)
&& ReturnArea(A, B, C) * ReturnArea(A, B, D) <= 0
&& ReturnArea(C, D, A) * ReturnArea(C, D, B) <= 0;

}