The JetChart Library - A class library that generates a great variety of Java charts. More than 20 types of series are supported, as follows:

Point series Line series Area series Image series Bar series Stacked bar series OHLC series Vector series

XY series XY line series XY bar series XY bubble series XY image series

Pie series Gauge series

Polar point series Polar line series Polar bubble series Polar image series Polar area series

Radar point series Radar line series Radar area series

We are working to bring a new product, called JDataMap, which shows, in the form of colored rectangles hierarchically organized, the attributes of large amounts of data. JDataMap will be available soon. If you need any additional information regarding this product, please contact us sending email to mail@jinsight.com.

Here is a screenshot and a link to an applet demo of what is called a 'treemap', generated by JDataMap:

Click here to load the applet demo.