moxiaonian
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副本编号 LY-20261007-AC63（水印指纹已嵌入） 含 README、.gitignore；排除 .DS_Store / __pycache__ / .pytest_cache
112 lines
3.1 KiB
Python
112 lines
3.1 KiB
Python
# -*- coding:utf-8 -*-
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from __future__ import annotations
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from tyme4py import AbstractTyme
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from tyme4py.culture import Week
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from typing import TYPE_CHECKING
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if TYPE_CHECKING:
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from tyme4py.solar import SolarDay, SolarTime
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class JulianDay(AbstractTyme):
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"""儒略日"""
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J2000: float = 2451545
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"""2000年儒略日数(2000-1-1 12:00:00 UTC)"""
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def __init__(self, day: float):
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"""
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:param day: 为小数
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"""
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self._day = day
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@classmethod
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def from_julian_day(cls, day: float) -> JulianDay:
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return cls(day)
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@classmethod
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def from_ymd_hms(cls, year: int, month: int, day: int, hour: int, minute: int, second: int) -> JulianDay:
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"""
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通过公历年月日时分秒进行初始化
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:param year: 年
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:param month: 月
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:param day: 日
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:param hour: 时
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:param minute: 分
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:param second: 秒
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:return:
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"""
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d: float = day + ((second / 60 + minute) / 60 + hour) / 24
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n: int = 0
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g: bool = year * 372 + month * 31 + int(d) >= 588829
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if month <= 2:
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month += 12
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year -= 1
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if g:
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n = int(year * 0.01)
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n = 2 - n + int(n * 0.25)
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return cls(int(365.25 * (year + 4716)) + int(30.6001 * (month + 1)) + d + n - 1524.5)
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def get_day(self) -> float:
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"""
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:return: 儒略日
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"""
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return self._day
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def get_name(self) -> str:
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return f'{self._day}'
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def next(self, n: float) -> JulianDay:
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return JulianDay(self._day + n)
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def get_solar_day(self) -> SolarDay:
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"""
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:return: 公历日
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"""
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return self.get_solar_time().get_solar_day()
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def get_solar_time(self) -> SolarTime:
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"""
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:return: 公历时刻
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"""
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d: int = int(self._day + 0.5)
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f: float = self._day + 0.5 - d
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if d >= 2299161:
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c: int = int((d - 1867216.25) / 36524.25)
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d += 1 + c - int(c * 0.25)
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d += 1524
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y: int = int((d - 122.1) / 365.25)
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d -= int(365.25 * y)
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m: int = int(d / 30.601)
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d -= int(30.601 * m)
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if m > 13:
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m -= 12
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else:
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y -= 1
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m -= 1
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y -= 4715
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f *= 24
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hour: int = int(f)
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f -= hour
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f *= 60
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minute: int = int(f)
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f -= minute
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f *= 60
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second: int = round(f)
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from tyme4py.solar import SolarTime
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return SolarTime(y, m, d, hour, minute, second) if second < 60 else SolarTime(y, m, d, hour, minute, second - 60).next(60)
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def get_week(self) -> Week:
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"""
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通过儒略日计算的星期是最准的，基姆拉尔森和蔡勒公式计算星期的准确性，在儒略日面前都是弟弟，不服来辩
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:return: 星期
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"""
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return Week(int(self._day + 0.5) + 7000001)
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def subtract(self, target: JulianDay) -> float:
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"""
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儒略日相减
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:param target: 儒略日
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:return: 差
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"""
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return self._day - target.get_day()
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