+
+ if ( !_myMeshDS->ShapeToMesh().IsNull() && aShape.IsNull() )
+ {
+ // removal of a shape to mesh, delete objects referring to sub-shapes:
+ // - sub-meshes
+ map <int, SMESH_subMesh *>::iterator i_sm = _mapSubMesh.begin();
+ for ( ; i_sm != _mapSubMesh.end(); ++i_sm )
+ delete i_sm->second;
+ _mapSubMesh.clear();
+ // - groups on geometry
+ map <int, SMESH_Group *>::iterator i_gr = _mapGroup.begin();
+ while ( i_gr != _mapGroup.end() ) {
+ if ( dynamic_cast<SMESHDS_GroupOnGeom*>( i_gr->second->GetGroupDS() )) {
+ _myMeshDS->RemoveGroup( i_gr->second->GetGroupDS() );
+ delete i_gr->second;
+ _mapGroup.erase( i_gr++ );
+ }
+ else
+ i_gr++;
+ }
+ _mapAncestors.Clear();
+ _mapPropagationChains.Clear();
+ }
+ else
+ {
+ if (_isShapeToMesh)
+ throw SALOME_Exception(LOCALIZED ("a shape to mesh has already been defined"));
+ }