// compute the time of Asr
private double ComputeAsr(AsrJuristicMethods method, double jDate, double t) // Shafii: step=1, Hanafi: step=2
{
var step = 1;
if (method == AsrJuristicMethods.Hanafi)
{
step = 2;
}
var D = this.SunDeclination(jDate + t);
var G = -this.darccot(step + this.dtan(Math.Abs(this._latitude - D)));
return(this.ComputeTime(jDate, G, t));
}
/// <summary>
/// get asr shadow factor
/// </summary>
/// <returns></returns>
private int AsrFactor(AsrJuristicMethods asrJuristicMethod)
{
//asrFactor: function (asrParam) {
// var factor = { Standard: 1, Hanafi: 2 }[asrParam];
// return factor || this.eval(asrParam);
//}
// Shafii: factor=1, Hanafi: factor=2
switch (asrJuristicMethod)
{
case AsrJuristicMethods.Shafii:
return(1);
case AsrJuristicMethods.Hanafi:
return(2);
default:
throw new ArgumentOutOfRangeException(nameof(AsrJuristicMethod));
}
}
// Shafii: step=1, Hanafi: step=2
// compute the time of Asr
private double ComputeAsr(AsrJuristicMethods method, double jDate, double t)
{
var step = 1;
if (method == AsrJuristicMethods.Hanafi)
{
step = 2;
}
var D = this.SunDeclination(jDate + t);
var G = -this.darccot(step + this.dtan(Math.Abs(this._latitude - D)));
return this.ComputeTime(jDate, G, t);
}