[cereallarceny]

This totally goes against the whole point Mike Bostock (creator of D3) laid out when he talks about creating reusable charts...

http://bost.ocks.org/mike/chart/

"To sum up: implement charts as closures with getter-setter methods. Conveniently, this is the same pattern used by D3’s other reusable objects, including scales, layouts, shapes, axes, etc."

You get none of that with C3.js...

[mightybyte]

There are some things that you can't easily do with Mike Bostock's method. Namely, it's not a good format for storing, examining, and modifying charts. And that's perfectly fine. It's good for what it's good for. But not everyone has the same needs.