/// <summary>
/// Private method to calculate either incidence or zenith angles,
/// depending on passed tiltedSurface
/// </summary>
private double GetIncidenceAngle(DateTime solarTime, TiltedSurface tiltedSurface)
{
var declinationAngle = config.DeclinationAngle.DeclinationAngle(solarTime.DayOfYear);
var hourAngle = HourAngle.GetHourAngle(solarTime);
return(IncidenceAngle.GetIncidenceAngle(tiltedSurface,
Location.Latitude.FromDegreeToRadians(),
declinationAngle,
hourAngle));
}
public SunriseSunset(DateTime solarNoon, double latitudeRadian)
{
var config = Configuration.Config;
var declination = config.DeclinationAngle.DeclinationAngle(solarNoon.DayOfYear);
var sunsetHourAngle = config.SunsetHourAngle.GetSunsetHourAngle(latitudeRadian, declination);
var timeDelta = HourAngle.GetTimeSpanFromHourAngle(sunsetHourAngle);
Sunrise = solarNoon - timeDelta;
Sunset = solarNoon + timeDelta;
}
/// <summary> /// Returns the hour angle. /// The given dateTime will be interpreted as defined in the configuration object. /// </summary> public double GetHourAngle(DateTime dateTime) => calculator.CalculateAngle(dt => HourAngle.GetHourAngle(dt), dateTime);
