public static IEnumerable <Wind> Generate(IWindTableCollection windTables,
double lat, double lon, IEnumerable <double> flightLevels)
{
return(flightLevels.Select(fl =>
{
var UVWind = windTables.GetWindUV(lat, lon, fl * 100.0);
return Wind.FromUV(UVWind);
}));
}
/// <summary>
/// Gets the wind vector in earth's coordinate at the given location.
/// </summary>
public static Vector3D GetWind(
IWindTableCollection windData,
double altitudeFt,
double lat,
double lon)
{
var w = windData.GetWindUV(lat, lon, altitudeFt);
lat = ToRadian(lat);
lon = ToRadian(lon);
double sinLat = Sin(lat);
double sinLon = Sin(lon);
double cosLon = Cos(lon);
var u1 = new Vector3D(-sinLon, cosLon, 0.0);
var u2 = new Vector3D(-sinLat * cosLon, -sinLat * sinLon, Cos(lat));
return(u1 * w.UComp + u2 * w.VComp);
}