geodetic-to-ecef

convert geodetic coordinates
([lat,lon])
to ecef (cartesian [x,y,z])


example

`` js
var ecef = require('geodetic-to-ecef');
var xyz = ecef(37.8043722, -122.2708026);
console.log(xyz);
`

output:

`
$ node ecef.js
[ -2694044.4111565403, -4266368.805493665, 3888310.602276871 ]
`

methods

` js
var ecef = require('geodetic-to-ecef')
`

var xyz = ecef(lat, lon, elevation=0)

Return an array xyz of [x,y,z] coordinates in meters from lat and lon.

Optionally supply an elevation in meters.

usage

This package ships with a command-line tool.

`
geodetic-to-ecef LAT LON
geodetic-to-ecef LAT LON ELEV

Print the ECEF (X Y Z) coordinates for LAT LON
and optionally an elevation ELEV in meters (default: 0).

`

example output:

`
$ geodetic-to-ecef -36.867 174.767
-5087568.564323121 465959.663344287 -3805595.1124150762
`

install

To get the library:

`
npm install geodetic-to-ecef
`

To get the command-line tool:

`
npm install -g geodetic-to-ecef
``

license

MIT