title: What is a good visualization library for creating state diagrams and animations?
body: <p>I'd like to post-process log files and extract node data and transitions, and then graph them in a gui of some kind.  So, I'd like to programmaticly draw bubble diagrams, maybe with animations showing packets going from node to node.</p>
  
  <p>Ideally, perl or java would be the language of choice, but anything that runs on a linux platform would be fine.</p>
  
  <p>What is the best library for this kind of thing?</p>