Setting OmniGraphSketcher Free
omnigroup.com
omnigroup.com
Robin later managed to turn the program into his master's thesis, a conference paper that won "Best Paper" (http://dl.acm.org/citation.cfm?id=1518870), and an acquisition by the Omni Group, where he went on to develop the iPad version.
He later left Omni, which is part of the reason that they decided to discontinue and (later) open-source the product.
I'm look forward to seeing what people do with this code -- as well as what Robin might have up his sleeve next.
http://www.robinstewart.com/research/
Or, a direct link:
http://www.robinstewart.com/research/papers/stewart09graphsk...
It's amazing that Omni's products aren't copied / used as inspiration more - e.g. it's not that using OmniGraffle as a model for how the UI in a diagram editor ought to act would be all that hard... I wish the Dia guys would spent 10 minutes picking ideas from OmniGraffle, for example..
Funny that you're talking about "nice charts," though. Exactly what OGS made.