along.great: Along A great Arc

Description Usage Arguments Details Value Author(s) Examples

View source: R/along.great.R

Description

Calculate points along a great arc

Usage

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along.great(phi1, lam0, c, Az)

Arguments

phi1

start lat, radians

lam0

start lon, radians

c

distance, radians

Az

Azimuthal direction, radiansm

Details

All input and output is radians

Value

List:

phi

latitudes, radians

lam

longitudes, radians

Author(s)

Jonathan M. Lees<jonathan.lees@unc.edu>

Examples

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lat1 <- 48.856578
lon1 <- 2.351828	

A = along.great(lat1*pi/180, lon1*pi/180, 50*pi/180, -63*pi/180)

lat=A$phi*180/pi
lon = A$lam*180/pi

GEOmap documentation built on May 2, 2019, 8:56 a.m.