move (version 2.1.0)

turnAngleGc: Calculates turning angles on great circle tracks

Description

This function returns the turn angels of a great circle track.

Usage

# S4 method for .MoveTrackSingle
turnAngleGc(x)

Arguments

x

Move object, in long lat projection

Value

The function returns the turning angles in degrees.

Details

On great circle tracks the bearing of arrival on a point is not the same as witch the previous point was left. This function returns the difference between these bearings between -180 and 180. The bearings are calculated using the functions bearing and finalBearing of the geosphere package.

Examples

# NOT RUN {
data(leroy)
turnAngleGc(leroy)
# }