JpGraph is an OO Graph drawing library for PHP 4.3.x and above. Highlights of the available features are: text, integer/linear, and log scales for both the X and Y axes; anti-aliasing of lines; color-gradient fills; support for GIF, JPG, and PNG formats; support for two Y axes, spider plots (a.k.a Web plots), pie-charts, lineplots, filled line plots, impulse plots, bar plots, error plots, and polar plots; Gantt charts; support for multiple plot types in one graph; intelligent autoscaling; and extensive documentation (150 pages). License: Free for non-commercial use Changes:
This release fixes some problems with incorrect handling of small slices in PiePlots and some other minor issues.

More...