For the Search Inside the Music Demo, I wanted to be able to visualize the music space by showing a plot of the music space. I looked at a number of charting packages for Java and settled on JFreeChart. JFreeChart is a free (LGPL) chart library that supports a large number of chart types from pies, bars, lines and scatter plots. The JFreeChart API is quite flexible. I was able to easily wrap my code around a JFreeChart to make the charts interactive. Here's an example of a visualization of the music space that shows a musical journey from one style of music to another. All using JfreeChart:

Comments:

We use JFreeChart to visualize usage data from Grid Engine for utility computing. We found it powerful enough for our needs without being too cumbersome. It does have its limits, though.

Posted by Daniel Templeton on May 04, 2005 at 10:46 AM EDT #

fyi, I think that should be grid engine on sunsource.net (not .com).

Posted by John N. Underwood on May 04, 2005 at 11:18 AM EDT #

Thanks! I was looking for something like this.

Posted by Kevin on May 04, 2005 at 02:46 PM EDT #

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