Available Charting Tools

We used ChartDirector because it had the best set of drawing features that we could find. The ChartDirector package costs $99 to license a full version.

It does have a free (trial) version that can be used instead that includes a small "yellow banner" that labels each chart. The terms of the license allow us to distribute our software with their trial software in it, and has no limitation on the use of the trial software (buy purpose or by time) neither does the banner detract from the statistics.

jFreeChart

jFreeChart is probably the best, free, charting tool out. I think to use it from Perl would require building a command-line Java wrapper - inefficient and would add Java as a dependency.

Emprise JavaScript Charts

EJSChart - commercial, puts a watermark in the free version. $100 for a single-site license.

PlotKit

http://www.liquidx.net/plotkit/ - last updated August 2006

ChartDirector

http://www.advsofteng.com/ - version 4.1

Perl Chart Module

Customised by tdb01r to get truetype fonts working.