Returns the distance (in metres) to some other coordinates.
The other set of coordinates.
The distance in metres.
The latitude, in degrees.
The longitude, in degrees.
Creates some new coordinates.
The latitude in degrees.
The longitude in degrees.
Creates some coordinates relative to these coordinates.
The direction of the new coordinates from the origin coordinates (in degrees relative to true north).
The distance of the new coordinates from the origin coordinates (in metres).
The new coordinates.
A latitude/longitude pair.