public void GetStormWaterOutflowIDs(int drainageNetworkInstanceID, int numberOfOutflowNodes, ref int[] outflowIDs)
 {
     if (!MohidLandEngineDLLAccess.GetStormWaterOutFlowIDs(ref drainageNetworkInstanceID, ref numberOfOutflowNodes,
                                                           outflowIDs))
     {
         CreateAndThrowException();
     }
 }