HYDRODATA_EXPORT Handle_HYDROData_PolylineXY CreateBoundaryPolyline() const;
HYDRODATA_EXPORT virtual void UpdateLocalCS( double theDx, double theDy );
HYDRODATA_EXPORT Handle_HYDROData_PolylineXY CreateBoundaryPolyline() const;
HYDRODATA_EXPORT virtual void UpdateLocalCS( double theDx, double theDy );