Computes the initial great-circle bearing from one geographic position to another. The bearing is the direction to travel from the start point to reach the end point along the shortest path on the Earth's surface.
Latitude of the start point in decimal degrees.
Longitude of the start point in decimal degrees.
Latitude of the end point in decimal degrees.
Longitude of the end point in decimal degrees.
Initial bearing in degrees true (0-360).
Computes the initial great-circle bearing from one geographic position to another. The bearing is the direction to travel from the start point to reach the end point along the shortest path on the Earth's surface.