(Loxodrome Navigation is same as Mercator Navigation)
Calculate loxodrome distance and constant true
heading (course) from origin to destination. (using reference ellipsoid datum WGS84.Course is exact,
but distance is spherical)
True Heading (Course) = 0 or 360 is to the North
Pole, not to the Magnetic North
North = 0 East= 90 South = 180 West= 270