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The YUI Charts Control visualizes tabular data on a web page in several possible formats including vertical columns, horizontal bars, lines, and pies. Notable features include support for the DataSource Utility, customizable series and axes, a customizable mouse-over datatip, combination charts, and skinning.
Canvas 3D Graph is a special type of bar graph that plot numbers in 3D. This first started as PHP-GD project, but soon I realized that there is not much sense in generating complex graph like this on server side (script worked really fast, though)
Use this script to create horizontal / vertical bar graphs, progress bars and faders. You can create simple graphs and even grouped bar graphs with legends, add labels, change colors etc. No graphics or graphical libraries required.