try to discard unconnected points.
commit5689b161a8a1b8abd5623a0c863ec5765c0ba452
authorDouglas Bagnall <douglas@paradise.net.nz>
Mon, 24 May 2010 13:43:41 +0000 (25 01:43 +1200)
committerDouglas Bagnall <douglas@paradise.net.nz>
Mon, 24 May 2010 13:43:41 +0000 (25 01:43 +1200)
treecebf88f784a9cba549b3c2b0656f7df47f76ee2e
parenteaf90ada72e26b6818613e55c524a36253b3d0c9
try to discard unconnected points.

finding the median might be easier and better after all.
edges.c
sparrow.h