/// <summary>
/// Returns a List containing solar eclipse data for the century at the specified location.
/// Century returned is based on the date passed.
/// </summary>
/// <param name="lat">latitude</param>
/// <param name="longi">longitude</param>
/// <param name="date">DateTime</param>
/// <returns>List>SolarEclipseDetails></returns>
/// <example>
/// The following example gets a Solar Eclipse table for the 20th century at N 39, W 72
/// and displays each type of eclipse and occurrence date in that century.
/// <code>
/// List>SolarEclipseDetails> seList = Celestial.Get_Solar_Eclipse_Table(39, -72, new DateTime(1950, 1, 1));
///
/// foreach(SolarEclipseDetails sd in seList)
/// {
/// Console.WriteLine(sd.Type + " " + sd.Date.ToShortDateString());
/// }
///
/// //Partial 8/30/1905
/// //Partial 6/28/1908
/// //Partial 6/18/1909
/// //Partial 4/17/1912
/// //Partial 2/3/1916
/// //Partial 6/7/1918
/// //Partial 11/22/1919
/// ...
/// </code>
/// </example>
public static List <SolarEclipseDetails> Get_Solar_Eclipse_Table(double lat, double longi, DateTime date)
{
//Convert to Radians
double latR = lat * Math.PI / 180;
double longR = longi * Math.PI / 180;
//Get solar data based on date
double[] events = Eclipse.SolarData.SolarDateData_100Year(date);
//Return list of solar data.
return(SolarEclipseCalc.CalculateSolarEclipse(date, latR, longR, events));
}
public static void CalculateSolarEclipse(DateTime date, double lat, double longi, Celestial c)
{
//Convert to Radian
double latR = lat * Math.PI / 180;
double longR = longi * Math.PI / 180;
List <List <string> > se = SolarEclipseCalc.CalculateSolarEclipse(date, latR, longR);
//RETURN FIRST AND LAST
if (se.Count == 0)
{
return;
}
//FIND LAST AND NEXT ECLIPSE
int lastE = -1;
int nextE = -1;
int currentE = 0;
DateTime lastDate = new DateTime();
DateTime nextDate = new DateTime(3300, 1, 1);
//Iterate to get last and next eclipse
foreach (List <string> values in se)
{
DateTime ld = DateTime.ParseExact(values[0], "yyyy-MMM-dd", System.Globalization.CultureInfo.InvariantCulture);
if (ld < date && ld > lastDate)
{
lastDate = ld; lastE = currentE;
}
if (ld >= date && ld < nextDate)
{
nextDate = ld; nextE = currentE;
}
currentE++;
}
//SET ECLIPSE DATA
if (lastE >= 0)
{
c.SolarEclipse.LastEclipse = new SolarEclipseDetails(se[lastE]);
}
if (nextE >= 0)
{
c.SolarEclipse.NextEclipse = new SolarEclipseDetails(se[nextE]);
}
}
