along.great {GEOmap} | R Documentation |
Along A great Arc
Description
Calculate points along a great arc
Usage
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
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
[Package GEOmap version 2.5-11 Index]