remov entir composit fig diagram discov attach fig edg associ fig associ attach remov diagram remov overrid remov diagram impl fig edg associ fig edg link list edg fig edg edg iter edg iter fig edg link object fig edg associ fig edg link fig edg associ fig edg link fig node fig box fig edg link dest fig node fig box fig associ fig box fig edg link sourc fig node fig edg link remov diagram impl fig associ fig box remov diagram impl remov diagram impl 