} // method GetPatternForFormatCharacter
/// <summary>
/// Returns DvDateTime instance with the given magnitude
/// </summary>
/// <param name="magnitude">magnitude is the numeric value of the date as seconds
/// since the calendar origin point 1/1/0000</param>
/// <returns></returns>
internal static DvTemporal <DvDateTime> GetDateTimeByMagnitude(double magnitude)
{
DesignByContract.Check.Require(magnitude >= TimeDefinitions.hoursInDay * TimeDefinitions.minutesInHour
* TimeDefinitions.secondsInMinute);
double secondsInDay = TimeDefinitions.secondsInMinute * TimeDefinitions.minutesInHour
* TimeDefinitions.hoursInDay;
//int daysInMagnitude = (int)(Math.Truncate(magnitude / secondsInDay));
double daysInMagnitude = magnitude / secondsInDay;
DvDate dvDate = DvDate.GetDateByMagnitude(daysInMagnitude);
Iso8601DateTime isoDateTime = new Iso8601DateTime(dvDate.Value);
//double remainder = magnitude - daysInMagnitude * secondsInDay;
double remainder = magnitude - isoDateTime.GetDateTimeSeconds();
if (remainder != 0 && !isoDateTime.DayUnknown && isoDateTime.Day > TimeDefinitions.nominalDaysInMonth)
{
remainder += (isoDateTime.Day - TimeDefinitions.nominalDaysInMonth) * TimeDefinitions.hoursInDay * TimeDefinitions.minutesInHour * TimeDefinitions.secondsInMinute;
}
if (remainder < 0)
{
dvDate = DvDate.GetDateByMagnitude((isoDateTime.GetDateTimeSeconds() - secondsInDay) / secondsInDay);
isoDateTime = new Iso8601DateTime(dvDate.Value);
remainder = magnitude - isoDateTime.GetDateTimeSeconds();
}
if (remainder == 86400)
{
dvDate = DvDate.GetDateByMagnitude((isoDateTime.GetDateTimeSeconds() + remainder) / secondsInDay);
isoDateTime = new Iso8601DateTime(dvDate.Value);
remainder = magnitude - isoDateTime.GetDateTimeSeconds();
}
DvTime dvTime = null;
if (remainder > 0)
{
dvTime = DvTime.GetTimeByMagnitude(remainder);
return(new DvDateTime(dvDate.Value + "T" + dvTime.Value));
}
return(new DvDateTime(dvDate.Value));
}
private DvDate GetDvDate(DvDateTime dateTime)
{
Iso8601DateTime isoDT = new Iso8601DateTime(dateTime.Value);
DvDate date = null;
int year = isoDT.Year;
int month = 0;
if (!isoDT.MonthUnknown)
{
month = isoDT.Month;
}
int day = 0;
if (!isoDT.DayUnknown)
{
day = isoDT.Day;
}
date = new DvDate(year, month, day);
return(date);
}
