Used to help create a closed shape from a set of unordered points using Graham's Scan http://en.wikipedia.org/wiki/Graham_scan Sample Image: http://i.imgur.com/uDT6x.png Derived from http://www.chrisharrison.net/projects/convexHull/index.html Thanks Chris! Requires: openFrameworks 007 Tested: Xcode 3.2.6 Mac 10.6.8