public GPSPosition RemoveLastPos()
        {
            if (GPSPositions.Count == 0)
            {
                return(null);
            }

            GPSPosition gPSPosition = GPSPositions[0];

            GPSPositions.RemoveAt(0);

            return(gPSPosition);
        }
 public void RemovePos(int index)
 {
     GPSPositions.RemoveAt(index);
 }