feat: 完善日月食与月掩几何链路并扩展历法接口
- 新增日月食中心带、偏食带、阴影足迹、等时线、食分线及升落边界计算,支持极区与混合食拓扑 - 新增日食单时刻阴影求解器、站心状态查询、批量采样和 ΔT 覆盖接口 - 重构恒星与行星月掩路径,补充有限盘面接触、站心修正、掩带宽度、极区投影及升落边界 - 扩展 SVG 与 GeoJSON 输出,支持详细面板、全球/极区/地球投影、边界闭合、时间标记和拓扑签名 - 扩展日月食候选搜索、局地搜索、沙罗序列预计算与范围外推,补充系列锚点和成员一致性校验 - 补齐古历纪年、儒略历独有闰日、多公历候选、历法改革跨日及精确日期运算接口 - 优化 ΔT、章动、恒星时、月球地平线、事件根搜索和本地星历缓存,降低重复计算开销并提升边界稳定
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@@ -39,7 +39,15 @@ func innerSolarToLunarQinHan(date time.Time) (Time, bool) {
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}
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func innerSolarToLunarQinHanByYMD(year, month, day int) (Time, bool) {
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return innerSolarToLunarQinHan(time.Date(year, time.Month(month), day, 0, 0, 0, 0, getCst()))
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// 直接按 JDN 取日期:儒略历独有的闰日先转 time.Time 会被规范化成后继日。
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jdn := qinHanDateJDN(year, month, day)
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date := qinHanJDNToDate(jdn)
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lmonth, ok := qinHanMonthBySolar(year, month, day)
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if !ok {
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return Time{}, false
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}
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lmonth.day = jdn - lmonth.startJDN + 1
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return markJulianOnlyJDN(qinHanTime(date, lmonth), jdn), true
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}
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func lunarToSolarQinHan(year, month, day int, leap bool) (Time, bool) {
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@@ -51,8 +59,9 @@ func lunarToSolarQinHan(year, month, day int, leap bool) (Time, bool) {
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return Time{}, false
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}
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lmonth.day = day
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date := qinHanJDNToDate(lmonth.startJDN + day - 1)
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return qinHanTime(date, lmonth), true
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jdn := lmonth.startJDN + day - 1
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date := qinHanJDNToDate(jdn)
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return markJulianOnlyJDN(qinHanTime(date, lmonth), jdn), true
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}
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func rapidSolarQinHan(year, month, day int, leap bool) (time.Time, bool) {
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