EaselJS has a nice abstraction over canvas. Look on his charts (the source with the code to create it is very readable): http://easeljs.com/examples/barGraph.ht

EaselJS has a nice abstraction over canvas. Look on his charts (the source with the code to create it is very readable): http://easeljs.com/examples/barGraph.html http://easeljs.com/examples/barGraph.html