+ // Call base method
+ HYDROData_Entity::CopyTo( theDestination );
+
+ Handle(HYDROData_Stream) aStreamCopy =
+ Handle(HYDROData_Stream)::DownCast( theDestination );
+
+ // Copy bottom polyline if exists
+ if ( !aStreamCopy.IsNull() ) {
+ const Handle(HYDROData_Polyline3D) aBottom = GetBottomPolyline();
+ if ( !aBottom.IsNull() ) {
+ aStreamCopy->ClearReferenceObjects( DataTag_BottomPolyline );
+ aStreamCopy->GenerateBottomPolyline();
+ const Handle(HYDROData_Polyline3D) aBottomCopy = aStreamCopy->GetBottomPolyline();
+ if ( !aBottomCopy.IsNull() && !aBottomCopy->GetPolylineXY().IsNull() ) {
+ aBottomCopy->GetPolylineXY()->Update();
+ aBottomCopy->Update();
+ }
+ }
+ }