/// <summary>
/// 起运计算
/// </summary>
private void computeStart()
{
JieQi prev = lunar.getPrevJie();
JieQi next = lunar.getNextJie();
Solar current = lunar.getSolar();
Solar start = forward ? current : prev.getSolar();
Solar end = forward ? next.getSolar() : current;
int hourDiff = LunarUtil.getTimeZhiIndex(end.toYmdHms().Substring(11, 5)) - LunarUtil.getTimeZhiIndex(start.toYmdHms().Substring(11, 5));
DateTime endCalendar = new DateTime(end.getYear(), end.getMonth(), end.getDay(), 0, 0, 0, 0);
DateTime startCalendar = new DateTime(start.getYear(), start.getMonth(), start.getDay(), 0, 0, 0, 0);
int dayDiff = endCalendar.Subtract(startCalendar).Days;
if (hourDiff < 0)
{
hourDiff += 12;
dayDiff--;
}
int monthDiff = hourDiff * 10 / 30;
int month = dayDiff * 4 + monthDiff;
int day = hourDiff * 10 - monthDiff * 30;
int year = month / 12;
month = month - year * 12;
this.startYear = year;
this.startMonth = month;
this.startDay = day;
}
/// <summary>
/// 获取起运的阳历日期
/// </summary>
/// <returns>阳历日期</returns>
public Solar getStartSolar()
{
Solar birth = lunar.getSolar();
DateTime c = new DateTime(birth.getYear(), birth.getMonth(), birth.getDay(), 0, 0, 0);
c = c.AddYears(startYear);
c = c.AddMonths(startMonth);
c = c.AddDays(startDay);
return(Solar.fromDate(c));
}
/// <summary>
/// 周推移
/// </summary>
/// <param name="weeks">推移的周数，负数为倒推</param>
/// <param name="separateMonth">是否按月单独计算</param>
/// <returns>推移后的阳历周</returns>
public SolarWeek next(int weeks, bool separateMonth)
{
if (0 == weeks)
{
return(new SolarWeek(year, month, day, start));
}
if (separateMonth)
{
int n = weeks;
DateTime c = new DateTime(year, month, day);
SolarWeek week = new SolarWeek(c, start);
int m = this.month;
bool plus = n > 0;
while (0 != n)
{
c = c.AddDays(plus ? 7 : -7);
week = new SolarWeek(c, start);
int weekMonth = week.getMonth();
if (m != weekMonth)
{
int index = week.getIndex();
if (plus)
{
if (1 == index)
{
Solar firstDay = week.getFirstDay();
week = new SolarWeek(firstDay.getYear(), firstDay.getMonth(), firstDay.getDay(), start);
weekMonth = week.getMonth();
}
else
{
c = new DateTime(week.getYear(), week.getMonth(), 1);
week = new SolarWeek(c, start);
}
}
else
{
int size = SolarUtil.getWeeksOfMonth(week.getYear(), week.getMonth(), start);
if (size == index)
{
Solar firstDay = week.getFirstDay();
Solar lastDay = firstDay.next(6);
week = new SolarWeek(lastDay.getYear(), lastDay.getMonth(), lastDay.getDay(), start);
weekMonth = week.getMonth();
}
else
{
c = new DateTime(week.getYear(), week.getMonth(), SolarUtil.getDaysOfMonth(week.getYear(), week.getMonth()));
week = new SolarWeek(c, start);
}
}
m = weekMonth;
}
n -= plus ? 1 : -1;
}
return(week);
}
else
{
DateTime c = new DateTime(year, month, day);
c = c.AddDays(weeks * 7);
return(new SolarWeek(c, start));
}
}