//! Warning: shape S must be shape of type VERTEX, EDGE, FACE, SOLID.
//! For shapes of other types method always returns empty list
Standard_EXPORT virtual const TopTools_ListOfShape& Generated (const TopoDS_Shape& S) Standard_OVERRIDE;
+
+ //! Returns true if the shape S has been deleted.
+ Standard_EXPORT virtual Standard_Boolean IsDeleted(const TopoDS_Shape& S) Standard_OVERRIDE;
+
//! Returns the TopoDS Shape of the beginning of the revolution,
//! generated with theShape (subShape of the generating shape).