[1]
''Graphviz'' <http://www.research.att.com/sw/tools/graphviz/>

> Graphviz - open source graph drawing software


[2] [CITE@en[mdaines/viz.js]]
( ([TIME[2014-11-20 08:10:41 +09:00]] 版))
<https://github.com/mdaines/viz.js/>