Prototype And Canvas Charts: ProtoChart

ProtoChart is an open source canvas chart library built with Prototype.

This library is highly inspired from Flot, Flotr and PlotKit & it enables us to create different chart types on the fly.

Features of this chart library:

• Line, bar, pie, curve, mix, and area charts available


• Multiple data series on same graph


• Highly customizable legend support


• Customizable grid, grid border, background


• Customizable axis-tick values (both x and y)


• Supports: IE6/7, FF2/3 and Safari


• Even works on an iPhone!

As IE6 does not support the canvas tag, Excanvas library is used for compatibility.