Determines azimuth (compass direction) & range of the second point (B) as seen from the first point (A), given latitude, longitude & altitude of two points on the Earth. Also determine latitude, longitude, & altitude from given range, azimuth, and elevation.

Moulded from Don Cross's Azimuth/Distance Calculator

Forked from Debjeet Biswas

Install the module with: npm install azimuth2

let calculate = require('azimuth2');
let rae = calculate.RAE({
  latitude: 18.513929,
  longitude: 73.924475,
  altitude: 561.9
}, {
  latitude: 18.513964,
  longitude: 73.924471,
  altitude: 562
}); // "{ range: 3.9191090699705464, azimuth: 353.8149364508667, elevation: 1.3478271564744548 }"

let lla = calculate.RAEtoLLA(rae);

To run tests

npm test

or

grunt nodeunit

Copyright (c) 2017 Andida Syahendar Licensed under the MIT license.