/// <summary>
/// Forward projection, from geographic to <see cref="OSGB"/> coordinates.
/// </summary>
/// <param name="lat"></param>
/// <param name="lon"></param>
/// <param name="gamma"></param>
/// <param name="k"></param>
/// <returns></returns>
public static (double x, double y) Forward(double lat, double lon, out double gamma, out double k)
{
var(x, y) = OSGBTM.Forward(OriginLongitude, lat, lon, out gamma, out k);
x += FalseEasting;
y += NorthOffset;
return(x, y);
}
/// <summary>
/// Reverse projection, from <see cref="OSGB"/> coordinates to geographic.
/// </summary>
/// <param name="x"></param>
/// <param name="y"></param>
/// <param name="gamma"></param>
/// <param name="k"></param>
/// <returns></returns>
public static (double lat, double lon) Reverse(double x, double y, out double gamma, out double k)
{
x -= FalseEasting;
y -= NorthOffset;
var(lat, lon) = OSGBTM.Reverse(OriginLongitude, x, y, out gamma, out k);
return(lat, lon);
}