I was about to say: "another one?" but this is actually pretty cool, kind of sums up all other posts on this topic in the past few weeks. Open source evolution at it's best. Each new post is something that adds a little more on the previous, gives proper credit, and the end result is something useful, that will make any boring graph a little less boring, this is why HN is so great.

From a question on stackexchange on Mathematica (I think) to basic implementation in HTML5/JavaScript, to a fully functional graph generator that needs no code.

The next evolution I assume can have a jsfiddle like short URLs, share buttons, and a voting mechanism for best graphs.