92/11/30 ftp.kpc.com /pub/graphics/convex convex.tar.Z is a compressed tar file of a number of algorithms for testing if a polygon is convex or not. Some of the algorithms were originally obtained from comp.graphics and modified. One was written by Fred Fisher of KPC. Also included are a program and associated scripts to test the speed of executing any of the algorithms. This includes some polygon test cases, many originally obtained from the net and some additional ones I generated. See ./convex/perf/poly.com for how to define environment variables for using the testing scripts