Free java data visualization library? [closed]

Answer 1

Try Protovis, which seems to be the successor of Prefuse and may be a good alternative option. It is written in JavaScript, but a Java Graphical Toolkit is available.

D3.js is the successor of Protovis today. (Recommended by Protovis.)

Answer 2

An other alternative is to use JUNG framework. If you are looking for browser/Javascript based libraries as well, checkout three.js

Answer 3

You'd have to no doubt do a lot of customization, but Google's Chart Tools offers a lot of flexibility and options (http://code.google.com/apis/chart/). I have not done anything as involved as the images that you pasted above, but it was fairly easy to set up various charts using the Google Visualization API.

It might be worth it to post your images on the Google Visualization API group (http://groups.google.com/group/google-visualization-api?pli=1) to see if anyone has done more involved charts like those you've proposed above using the Visualization API...

Answer 4

GraphStream is a possibility.

Answer 5

For the timeline part, you should really consider Google Visualization API which contains annoted timelines, ...