public static double Distance(PortableLocation l1, PortableLocation l2)
{
double lat1 = l1.Latitude;
double lat2 = l2.Latitude;
double lon1 = l1.Longitude;
double lon2 = l2.Longitude;
double rlat1 = Math.PI * lat1 / 180;
double rlat2 = Math.PI * lat2 / 180;
double theta = lon1 - lon2;
double rtheta = Math.PI * theta / 180;
double dist =
Math.Sin (rlat1) * Math.Sin (rlat2) + Math.Cos (rlat1) *
Math.Cos (rlat2) * Math.Cos (rtheta);
dist = Math.Acos (dist);
dist = dist * 180 / Math.PI;
dist = dist * 60 * 1.1515;
return dist * 1.609344;
}
public void AddLocation(PortableLocation location)
{
Locations.Add (location);
}
