Calculate angle between two Latitude/Longitude points

Question

Is there a way to calculate angle between two Latitude/Longitude points?

What I am trying to achieve is to know where the user is heading. For example, user is heading North, South,.... South-East, etc.

But I have only two points (Lng/Ltd)

Thx

Answer 1

using this referance to calculate Angle:

private double angleFromCoordinate(double lat1, double long1, double lat2,         double long2) {      double dLon = (long2 - long1);      double y = Math.sin(dLon) * Math.cos(lat2);     double x = Math.cos(lat1) * Math.sin(lat2) - Math.sin(lat1)             * Math.cos(lat2) * Math.cos(dLon);      double brng = Math.atan2(y, x);      brng = Math.toDegrees(brng);     brng = (brng + 360) % 360;     brng = 360 - brng; // count degrees counter-clockwise - remove to make clockwise      return brng; }