# GoogleMaps Framework Reference

# GMSGeometryHeading

    extern CLLocationDirection GMSGeometryHeading(CLLocationCoordinate2D from,
                                                  CLLocationCoordinate2D to)

Returns the initial heading (degrees clockwise of North) at `from` of the shortest path to `to`.

The returned value is in the range \[0, 360).

Returns 0 if the two coordinates are the same.

Both coordinates must be valid.

To get the final heading at `to` one may use (GMSGeometryHeading(`to`, `from`) + 180) modulo 360.