This function calculates the geographic bearing from one spatial thing to another using their Latitude and Longitude coordinates and the law of cosines from spherical trigonometry. (Direction From To Fn THING1 THING2) returns the angle between the segment of the great circle joining the North Pole and THING1 and the segment of the great circle joining THING1 and THING2.
(Direction From To Fn THING1 THING2) returns the angle between the segment of the great circle joining the North Pole andTHING1and the segment of the great circle joiningTHING1andTHING2.