Visualizing EMF, now with Prefuse
After playing around with Graphviz, I looked at Prefuse
next. In contrast to Graphviz, Prefuse is an interactive toolkit, i.e. you can manipulate the graphs. It is done completely in Java.
I integrated it into Eclipse (using SWT_AWT) and also provided an EMF meta model so you can easily map your own models to the Prefuse meta model. If you're interested, take a look at this screencast