/// <summary>
/// Returns the distance between two locations, ignoring altitude differences. (Haversine formula)
/// </summary>
/// <param name="from"></param>
/// <param name="to"></param>
/// <returns></returns>
public static Distance GetFlatDistance(Location from, Location to)
{
double dLat = to.Latitude.Radians - from.Latitude.Radians;
double dLong = to.Longitude.Radians - from.Longitude.Radians;
double a = Math.Pow(Math.Sin(dLat/2), 2) + (Math.Pow(Math.Sin(dLong/2), 2) * Math.Cos(from.Latitude.Radians) * Math.Cos(to.Latitude.Radians));
double c = 2 * Math.Atan2(Math.Sqrt(a), Math.Sqrt(1 - a));
Distance RadiusOfEarth = new Distance(RadiusOfEarthKm, Units.Linear.Kilometers);
return new Distance(c * RadiusOfEarth.Kilometers, Units.Linear.Kilometers);
}
/// <summary>
/// Sets the location parameters.
/// </summary>
/// <param name="latitude">The angle of latitude.</param>
/// <param name="longitude">The angle of longitude.</param>
/// <param name="altitude">The distance of altitude.</param>
public void setLocation(Angle latitude, Angle longitude, Distance altitude)
{
_latitude = latitude;
_longitude = longitude;
_altitude = altitude;
}