R: Along A great Arc

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 2.4-0 Index]