The Petersengraph as a unitdistancegraph (all edges the same length). David Benbennick wrote this SVG file. I release all rights to it. The edge lengths
generalized Petersengraphs are unit-distancegraphs, IMFM preprints 1109. See http://www.ics.uci.edu/~eppstein/0xDE/Nauru_unit_distance.py for the Python