/// <summary>
/// Calculates final bearing from the start point to the destination point.
/// </summary>
/// <param name="Destination">Destination location.</param>
/// <returns>Final bearing from the start point to the destination point.</returns>
/// <remarks>Formula source: http://www.movable-type.co.uk/scripts/latlong.html .</remarks>
public double FinalBearingTo(GpsLocation Destination)
{
// For final bearing, simply take the initial bearing from the end point to the start point and reverse it (using θ = (θ+180) % 360).
double reverseBrng = Destination.InitialBearingTo(this);
double res = (reverseBrng + 180.0) % 360.0;
return(res);
}
/// <summary>
/// Basic square constructor.
/// </summary>
/// <param name="LeftTop">Location of the left-top corner of the square.</param>
/// <param name="RightTop">Location of the right-top corner of the square.</param>
/// <param name="LeftBottom">Location of the left-bottom corner of the square.</param>
/// <param name="RightBottom">Location of the right-bottom corner of the square.</param>
public GpsSquare(GpsLocation LeftTop, GpsLocation RightTop, GpsLocation LeftBottom, GpsLocation RightBottom)
{
this.LeftTop = LeftTop;
this.RightTop = RightTop;
this.LeftBottom = LeftBottom;
this.RightBottom = RightBottom;
double bearing = LeftTop.InitialBearingTo(RightTop);
double distance = LeftTop.DistanceTo(RightTop) / 2;
MidTop = LeftTop.GoVector(bearing, distance);
bearing = LeftBottom.InitialBearingTo(RightBottom);
distance = LeftBottom.DistanceTo(RightBottom) / 2;
MidBottom = LeftBottom.GoVector(bearing, distance);
}
