That doesn't really solve the task, to be honest. I personally liked very much a screenshot of some commercial software, which showed a detailed trace from a given seat on a floor map to some floor switch. I don't remember the name of the software, perhaps, others could hint?
not sure, but I was digging into the google and found this: 1) patchmaker http://www.cs.princeton.edu/patchmaker/about.html, maybe it would be easier to incorporate whats been done already 2) http://www.jumpnetworks.net/img/diagram.gif though there is no information about the software/could be just a picture will dig more -- pgp-key 0x1C655CAB
