openlayers/ol3 — pull request #198 by twpayne (2013-02-18 11:28:21+00:00)
Title: Add ellipsoid geometry functions

These are taken from http://www.movable-type.co.uk/scripts/latlong-vincenty.html , and have been tested against the reference implementation. There were two bugs in the reference implementation, the tests use the corrected reference implementation.