openlayers/openlayers — pull request #45 by twpayne (2011-11-09 17:43:28+00:00)
Title: Add OpenLayers.Util.initialBearingTo

This small patch adds a function to calculate the initial bearing from one LonLat to another on a sphere, using the algorithm described at http://www.movable-type.co.uk/scripts/latlong.html