jesse-uxandGrok (agent loop)
d45e65a9ec
研究章在渲染时计算，不写入资料包。四种星座大运次小运和 Kalachakra 第三层不改原来的主运、子运。D81、D108、D144 只留在研究章。 自测：test_research_timing、星座大运、域读取、卫生预算、真恒星、jhora 扫描、API 增长、六章标题、英文版。三张虚构盘中英出稿都低于 180 秒。PyJHora 已导入但未做逐层对照。 Co-Authored-By: Grok (agent loop)
255 lines
9.5 KiB
Python
255 lines
9.5 KiB
Python
"""Return roots and elongation clocks on SiderealFrame.
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The step and bisection follow the research return search. The longitude
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call is ours. Windows stay at most 400 days.
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"""
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from __future__ import annotations
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import bisect
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from datetime import datetime, timedelta, timezone
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import swisseph as swe
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try:
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from research_timing.frame import SiderealFrame
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except ImportError: # pragma: no cover - package import
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from scripts.research_timing.frame import SiderealFrame
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try:
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from muhurta import _find_next_boundary
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except ImportError: # pragma: no cover - package import
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from scripts.muhurta import _find_next_boundary
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_STEP = 0.125
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_BISECTIONS = 45
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_TOLERANCE = 1e-6
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def find_returns(
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frame: SiderealFrame,
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technique: str,
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birth_jd: float,
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start_jd: float,
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end_jd: float,
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) -> dict:
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if technique not in ("yoga_pravesha", "nakshatra_pravesha", "tithi_pravesha"):
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raise ValueError(f"unsupported return technique: {technique}")
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if not start_jd < end_jd or end_jd - start_jd > 400:
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raise ValueError("search window must be positive and no longer than 400 days")
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sun, moon = frame.sun_moon(birth_jd)
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solar_sign = int(sun // 30)
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target = _coordinate(technique, sun, moon)
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def residual(jd: float) -> float:
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left, right = frame.sun_moon(jd)
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value = _coordinate(technique, left, right)
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return (value - target + 180.0) % 360.0 - 180.0
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rows: list[dict] = []
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left = float(start_jd)
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left_value = residual(left)
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while left < end_jd:
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right = min(left + _STEP, float(end_jd))
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right_value = residual(right)
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if left_value * right_value <= 0 and abs(right_value - left_value) < 180:
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root = left if abs(left_value) < 1e-8 else _bisect(left, right, left_value, residual)
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body_sun, body_moon = frame.sun_moon(root)
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error = residual(root)
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if (
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start_jd <= root < end_jd
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and abs(error) < _TOLERANCE
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and int(body_sun // 30) == solar_sign
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and all(abs(root - row["jd_ut"]) > _TOLERANCE for row in rows)
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):
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rows.append({
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"jd_ut": root,
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"sun_longitude": body_sun,
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"moon_longitude": body_moon,
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"residual_degrees": error,
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})
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left, left_value = right, right_value
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return {
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"technique": technique,
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"target_degrees": target,
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"natal_solar_sign_index": solar_sign,
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"natal_sun": sun,
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"natal_moon": moon,
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"returns": rows,
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"frame": "swiss_ephemeris_true_precession",
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}
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def _coordinate(technique: str, sun: float, moon: float) -> float:
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if technique == "tithi_pravesha":
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return (moon - sun) % 360.0
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if technique == "yoga_pravesha":
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return (sun + moon) % 360.0
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return moon % 360.0
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def _bisect(left: float, right: float, left_value: float, residual) -> float:
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low, high, low_value = left, right, left_value
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for _ in range(_BISECTIONS):
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mid = (low + high) / 2.0
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value = residual(mid)
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if low_value * value <= 0:
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high = mid
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else:
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low, low_value = mid, value
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return (low + high) / 2.0
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def jd_to_utc(jd: float) -> datetime:
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year, month, day, hour = swe.revjul(float(jd), swe.GREG_CAL)
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return datetime(int(year), int(month), int(day), tzinfo=timezone.utc) + timedelta(hours=float(hour))
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def containing_tithi(frame: SiderealFrame, jd: float) -> dict:
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"""Time fraction left in the 12-degree tithi that contains this instant."""
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def phase(at: float) -> float:
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sun, moon = frame.sun_moon(at)
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return (moon - sun) % 360.0
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angle = phase(jd)
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cursor = jd - 1.6
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previous = None
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following = None
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for _ in range(4):
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boundary = _find_next_boundary(cursor, phase, 12.0, 1.6)
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if boundary is None or boundary <= cursor:
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raise RuntimeError("containing tithi boundaries unavailable")
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if boundary > jd:
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following = boundary
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break
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previous, cursor = boundary, boundary
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if previous is None or following is None or not previous <= jd < following:
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raise RuntimeError("containing tithi boundaries unavailable")
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return {
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"tithi_num": int(angle // 12) + 1,
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"elongation": angle,
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"remaining_time_fraction": (following - jd) / (following - previous),
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"remaining_angular_fraction": 1.0 - (angle % 12.0) / 12.0,
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"start_jd_ut": previous,
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"end_jd_ut": following,
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}
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def measure_elongation(frame: SiderealFrame, start_jd: float, end_jd: float) -> float:
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"""Unwrapped sidereal Moon-minus-Sun over at most 400 days."""
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if not 0 < end_jd - start_jd <= 400:
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raise ValueError("motion interval must span more than 0 and at most 400 days")
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cursor = float(start_jd)
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sun, moon = frame.sun_moon(cursor)
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previous = (moon - sun) % 360.0
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total = 0.0
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while cursor < end_jd:
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cursor = min(cursor + 1.0, float(end_jd))
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sun, moon = frame.sun_moon(cursor)
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current = (moon - sun) % 360.0
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total += (current - previous + 180.0) % 360.0 - 180.0
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previous = current
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return total
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class ElongationClock:
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"""Map a 360-unit year onto accumulated sidereal elongation."""
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def __init__(self, frame: SiderealFrame, return_jd: float, total_angle: float, known_end_jd: float | None = None) -> None:
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if not 0 < total_angle <= 6000:
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raise ValueError("positive total angle within the annual grid is required")
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self.frame = frame
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self.return_jd = float(return_jd)
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self.total_angle = float(total_angle)
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self._days = [self.return_jd + index for index in range(-100, 501)]
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self._phases = [self._phase(day) for day in self._days]
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self._angles = [0.0]
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for left, right in zip(self._phases, self._phases[1:]):
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step = (right - left + 180.0) % 360.0 - 180.0
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if not 0 < step < 180:
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raise ValueError("elongation clock requires forward daily motion")
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self._angles.append(self._angles[-1] + step)
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self._origin = self._angles[100]
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self._cache = {0.0: self.return_jd}
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if known_end_jd is not None:
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if not self.return_jd < known_end_jd <= self.return_jd + 500:
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raise ValueError("known endpoint must lie in the forward annual grid")
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self._cache[360.0] = float(known_end_jd)
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def _phase(self, jd: float) -> float:
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sun, moon = self.frame.sun_moon(jd)
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return (moon - sun) % 360.0
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def solve(self, offset: float) -> float:
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if abs(offset) < 1e-8:
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offset = 0.0
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if abs(offset - 360.0) < 1e-8:
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offset = 360.0
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cached = self._cache.get(offset)
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if cached is not None:
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return cached
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target = self._origin + offset / 360.0 * self.total_angle
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index = bisect.bisect_right(self._angles, target) - 1
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if not 0 <= index < len(self._days) - 1:
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raise ValueError("angular boundary outside the bounded search grid")
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found = self._solve_day(index, target)
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self._cache[offset] = found
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return found
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def _solve_day(self, index: int, target: float) -> float:
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"""Day bracket, then a few slope steps. Residual stays within 1e-6 degree."""
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left, right = self._days[index], self._days[index + 1]
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left_angle = self._angles[index]
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span = self._angles[index + 1] - left_angle
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if span <= 0 or right <= left:
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raise ValueError("elongation clock day is not forward")
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origin_phase = self._phases[index]
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def motion(jd: float) -> float:
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return left_angle + (self._phase(jd) - origin_phase + 180.0) % 360.0 - 180.0
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slope = span / (right - left)
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guess = left + (target - left_angle) / span * (right - left)
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for _ in range(6):
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value = motion(guess)
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error = value - target
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if abs(error) <= 1e-6:
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return guess
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guess = min(right, max(left, guess - error / slope))
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low, high = left, right
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for _ in range(40):
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mid = (low + high) / 2.0
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error = motion(mid) - target
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if abs(error) <= 1e-6 or high - low < 1e-9:
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return mid
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if error < 0:
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low = mid
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else:
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high = mid
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return (low + high) / 2.0
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def hindu_solar_events(moment: datetime, latitude: float, longitude: float) -> list[dict]:
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"""Sunrise and sunset from the Swiss ephemeris file. No Moshier and no true-position flag."""
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if moment.utcoffset() is None:
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raise ValueError("solar events need a timezone")
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midnight = moment.astimezone(timezone.utc).replace(hour=0, minute=0, second=0, microsecond=0)
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flags = swe.FLG_SWIEPH
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events = []
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for offset in range(-3, 4):
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jd = (midnight + timedelta(days=offset)).timestamp() / 86400.0 + 2440587.5
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for name, mode in (("sunrise", swe.CALC_RISE), ("sunset", swe.CALC_SET)):
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status, times = swe.rise_trans(
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jd,
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swe.SUN,
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mode | swe.BIT_HINDU_RISING,
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(float(longitude), float(latitude), 0.0),
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flags=flags,
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)
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if status == 0 and jd <= times[0] < jd + 1:
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stamp = datetime.fromtimestamp((times[0] - 2440587.5) * 86400, timezone.utc)
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events.append({"event": name, "datetime_utc": stamp.isoformat()})
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events.sort(key=lambda row: row["datetime_utc"])
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return events
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