How to calculate heading/direction between two lat, longs with javascript?

Question

Assuming I have the following:

Point A (lat, lon) 33.95,-118.4333

Point B (lat, lon) 33.9461,-118.4431

I want to get the angle/direction the line is pointing to. How do I do this in Javascript?

`SIN`, `COS`, `ATAN2` are all available natively in JS. This might be helpful regarding degrees and radians: http://stackoverflow.com/q/135909/218196 . — Felix Kling, Feb 09 '17 at 22:37
Check [**this**](http://www.movable-type.co.uk/scripts/latlong.html)! It could be of some help! — ibrahim mahrir, Feb 09 '17 at 22:44

score 0 · Answer 1 · answered Feb 09 '17 at 22:50

There's a npm package for that:

and it's fairly easy to use:

const { getDistance } = require('geojson-tools')
var array = [
    [20, 30],
    [20.5, 29.5]
 ];

 getDistance(array, 4); // 76.3212

Units are in meters i believe.

1 Answers1