http://gojs.net/latest/index.html http://gojs.net/latest/index.html Lots of directed graph options. I'd argue the model data is even simpler to create and comp

http://gojs.net/latest/index.html http://gojs.net/latest/index.html Lots of directed graph options. I'd argue the model data is even simpler to create and comprehend, but there's a LOT more to GoJS than there is to this project. Also it isn't free. (Disclaimer: I'm a GoJS developer)