public static DateTime UtcSunrise(this SunTracker tracker)
{
var sunriseJulianDate = tracker.SolarTransit - (tracker.HourAngle / 360.0);
var sunriseUtcGregorianDate = JulianDateConverter.CalculateGregorianDate(sunriseJulianDate, tracker.GregorianDate, tracker.JulianDate);
return(sunriseUtcGregorianDate);
}
public static DateTime Sunset(this SunTracker tracker, TimeSpan offset)
{
var sunriseUtcGregorianDate = UtcSunset(tracker);
var sunrisetLocalGregorianDate = sunriseUtcGregorianDate.Add(offset);
return(sunrisetLocalGregorianDate);
}
public static DateTime Sunset(this SunTracker tracker, TimeSpan offset, bool dayLightSaving)
{
var sunriseUtcGregorianDate = UtcSunset(tracker);
var sunrisetLocalGregorianDate = sunriseUtcGregorianDate.Add(offset);
sunrisetLocalGregorianDate = dayLightSaving ? sunrisetLocalGregorianDate.AddHours(1) : sunrisetLocalGregorianDate;
return(sunrisetLocalGregorianDate);
}
public static SunTimes Times(double latitude, double longitude, DateTime?theDate = null, TimeSpan?offset = null, bool dst = false)
{
var timestamp = theDate ?? DateTime.UtcNow;
var zoneOffset = offset ?? TimeSpan.Zero;
var tracker = new SunTracker(latitude, longitude, timestamp);
return(new SunTimes
{
Local = new SunRiseSet
{
Rise = tracker.Sunrise(zoneOffset, dst),
Set = tracker.Sunset(zoneOffset, dst)
}.ToSolarDay(),
UTC = new SunRiseSet
{
Rise = tracker.UTCSunrise(),
Set = tracker.UTCSunset()
}.ToSolarDay(),
});
}