/// <exception cref="ArgumentException">Dupliated Converter.</exception>
internal void Register(PositionType from, PositionType to, Func <GPSCoordinate, GPSCoordinate> converter)
{
TypeTransfer transfer = new TypeTransfer(from, to);
transfer.AddConverter(converter);
if (m_transfers.Contains(transfer))
{
throw new ArgumentException(string.Format("From:{0} To:{1} Is Already Exists!", from, to));
}
m_transfers.Add(transfer);
}