determin fig edg current connect correct fig node edg correct fig node set edg rerout typic us user amend properti panel relationship model element graph need react chang particip associ end chang call helper method layout self avoid edg disappear sourc dest node updat sucess determin fig node object owner owner owner defin log lp log granular type statement lp log local log error fig edg owner endif layer defin log lp log granular type statement lp log local log error fig edg layer endif object sourc sourc object dest destin fig current sourc fig sourc fig node fig current dest fig dest fig node object current sourc object current destin current sourc fig current dest fig current sourc current sourc fig owner current destin current dest fig owner sourc current sourc dest current destin fig sourc fig edg present sourc fig dest fig edg present dest sourc fig current sourc fig set sourc fig node fig node sourc fig set sourc port fig sourc fig dest fig current dest fig set dest fig node fig node dest fig set dest port fig dest fig fig node sourc fig updat edg fig node dest fig updat edg calc bound adapt select button line call helper method avoid edg disappear sourc dest node sourc fig dest fig layout self 