Image Handling

JpGraphVisit Website

An Object-Oriented Graph creating library for PHP

JpGraph Professional License and QPL Free License

JpGraph is a Object-Oriented Graph creating library for PHP >= 4.3.1 The library is completely written in PHP and ready to be used in any PHP scripts (both CGI/APXS/CLI versions of PHP are supported). The library can be used to create numerous types of graphs either on-line or written to a file. JpGraph makes it easy to draw both "quick and dirty" graphs with a minimum of code as well as complex graphs which requires a very fine grained control. The library assigns context sensitive default values for most of the parameters which minimizes the learning curve.

Features:

• Support for both GD1 and GD2 The library will autodetect which library is installed.
• Automatic generation of client side image maps to make it possible to generate drill-down graphs.
• Advanced interpolation with cubic splines to get smooth curves from just a few data points.
• Supports several plot types,spider-plots, pie-charts (both 2d and 3d) , scatter-plots, line-plots, filled line-plots, accumulated line-plots, bar plots, accumulated bar plots, grouped bar plots, error plots, line error plots, box plots, stock plots
• Support for alpha blending
• Supports advanced Gantt-charts (ex1, ex2)
• Flexible scales, supports integer, linear, logarithmic, text (counting) scales and any combinatino thereof on x/y axis
• Extensive documentation with both a > 150 pages tutorial and an extensive class reference.

http://www.aditus.nu/jpgraph/