VisTer is system for terrain and landscapes visualization. It is graphical scene editor with built-in java3d renderer, which may be used in your java3d application. VisTer is based on plug-in system, so you can easily develope and test our own algorithms
S.o.n.a.r. is an analysis- and visualization tool developed for the popular business network XING (www.xing.com).
Registered XING users can search for companies and contact their personnel manager or other decision makers, i.e. for a job application.
NecJGui is an antennas design tool, interface for Numerical Electromagnetic Code. It allows easily making NEC input files, and viewing them in 3D. It also contains a version of the simulator, so it's complete IDE for full-wave EM simulation.