public static double GetBearing(GeoCoordinate position, GeoCoordinate point)
{
double dLon = LatLongMath.ToRad(point.Longitude - position.Longitude);
double lat1 = LatLongMath.ToRad(position.Latitude);
double lat2 = LatLongMath.ToRad(point.Latitude);
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 = LatLongMath.ToDeg(Math.Atan2(y, x));
return(brng);
}
public static double GetDistance(GeoCoordinate point1, GeoCoordinate point2)
{
double R = 6371; // km
double dLat = LatLongMath.ToRad(point2.Latitude - point1.Latitude);
double dLon = LatLongMath.ToRad(point2.Longitude - point1.Longitude);
double lat1 = LatLongMath.ToRad(point1.Latitude);
double lat2 = LatLongMath.ToRad(point2.Latitude);
double a = Math.Sin(dLat / 2) * Math.Sin(dLat / 2) +
Math.Sin(dLon / 2) * Math.Sin(dLon / 2) * Math.Cos(lat1) * Math.Cos(lat2);
double c = 2 * Math.Atan2(Math.Sqrt(a), Math.Sqrt(1 - a));
double d = R * c;
return(d * 1000);
//will return distance in metres
}