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Two.js[1] has a WebGL renderer and abstractions for basic vector graphics and polygons. I haven't had the chance to use it in a project yet but it seems promising. Two.js could even be used as a basis for a WebGL charting library (thus providing another layer of abstraction).

[1] http://jonobr1.github.io/two.js/

Thanks, that sounds really promising, will give it a try!

Canvas is ok, i also first tought on GL to solve that sort of problem..

But speaking of it, canvas has a sort of a bad api design and its not very optimized for GPU, you know..

beginRender()

...

swapBuffers()

endRender()

Since Adobe is now on the HTML side of things, I wonder if they could propose a good api, or at least try to make a optimized api version of the canvas.. as this is definetly their domain..

Also i remember to see a proposal for a more mature path api from that guy behind Gallium, Years ago .. Zac Riusin(or something) that looked promissing..

I second that. you can model all your vectors pretty trivially just using existing canvas api.