weighted straight skeleton implementation in java. applet here (webstart, binary code, run at your own risk).

allows negative weights for offsetting in either direction. implementation of Felkel's algo with robustness - described here.

requires jama, has a gui interface. video. enjoy.

main class is straightskeleton/debug/Main.java example of non-use use is http://code.google.com/p/campskeleton/wiki/PageName?ts=1304593846

i believe i own the license to all code in this release, hasn't been vetted for a while tho, so go carefully.