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
This commit is contained in:
+22
-65
@@ -9,7 +9,6 @@ import (
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const (
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localSolarEclipseSynodicMonthDays = 29.530588853
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localSolarEclipseSearchLimit = 6000
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localSolarEclipseSearchEpsilonDay = 1e-8
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localSolarEclipseLatitudeLimitDeg = 2.0
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)
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@@ -55,7 +54,7 @@ type LocalSolarEclipseInfo struct {
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Model SolarEclipseRadiusModel
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// Type 站心食型, local eclipse type.
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Type SolarEclipseType
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// HasSaros 存在沙罗序列信息, has Saros series metadata.
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// HasSaros 存在沙罗序列信息（可能是锚点外推结果）, has Saros series metadata (possibly extrapolated).
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HasSaros bool
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// Saros 是沙罗序列信息，包括系列号、系列内序号和总成员数。
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// Saros is Saros series metadata with the series number, member index, and total member count.
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@@ -384,27 +383,13 @@ func searchLocalSolarEclipse(
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calculator localSolarEclipseCalculator,
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mode localSolarEclipseQueryMode,
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) (LocalSolarEclipseInfo, bool) {
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targetTT := solarEclipseTimeToTTJDE(date)
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candidateTT := basic.CalcMoonSHByJDE(targetTT, 0)
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for i := 0; i < localSolarEclipseSearchLimit; i++ {
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if isPotentialLocalSolarEclipse(candidateTT) {
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globalResult := calculator.global(candidateTT)
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if globalResult.Type != basic.SolarEclipseNone {
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result := calculator.local(globalResult.GreatestEclipse, lon, lat, height)
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if result.Type != basic.SolarEclipseNone {
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info := localSolarEclipseInfoFromBasic(result, lon, lat, height, date.Location())
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if (mode != localSolarEclipseQueryVisible || localSolarEclipseVisible(info)) &&
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localSolarEclipseMatchesDirection(result.GreatestEclipse, targetTT, direction, includeCurrent) {
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return info, true
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}
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}
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}
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}
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candidateTT = nextEclipseSearchCandidateTT(candidateTT, 0, direction, localSolarEclipseSynodicMonthDays)
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}
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return LocalSolarEclipseInfo{}, false
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info, _, ok := searchLocalCentralSolarEclipse(
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solarEclipseTimeToTTJDE(date),
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solarEclipseTimeToTTJDE(date)+float64(direction)*localSolarEclipseDefaultSearchYears*365.25,
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direction, includeCurrent, SolarEclipseLocalSearchAny, lon, lat, height, date.Location(),
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calculator, mode,
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)
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return info, ok
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}
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func searchLocalTotalSolarEclipse(
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@@ -415,27 +400,13 @@ func searchLocalTotalSolarEclipse(
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calculator localSolarEclipseCalculator,
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mode localSolarEclipseQueryMode,
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) (LocalSolarEclipseInfo, bool) {
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targetTT := solarEclipseTimeToTTJDE(date)
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candidateTT := basic.CalcMoonSHByJDE(targetTT, 0)
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for i := 0; i < localSolarEclipseSearchLimit; i++ {
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if isPotentialLocalSolarEclipse(candidateTT) {
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globalResult := calculator.global(candidateTT)
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if globalResult.HasTotal || globalResult.HasHybrid {
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result := calculator.local(globalResult.GreatestEclipse, lon, lat, height)
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if result.HasTotal {
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info := localSolarEclipseInfoFromBasic(result, lon, lat, height, date.Location())
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if (mode != localSolarEclipseQueryVisible || localCentralSolarEclipseVisible(info)) &&
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localSolarEclipseMatchesDirection(result.GreatestEclipse, targetTT, direction, includeCurrent) {
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return info, true
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}
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}
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}
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}
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candidateTT = nextEclipseSearchCandidateTT(candidateTT, 0, direction, localSolarEclipseSynodicMonthDays)
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}
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return LocalSolarEclipseInfo{}, false
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info, _, ok := searchLocalCentralSolarEclipse(
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solarEclipseTimeToTTJDE(date),
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solarEclipseTimeToTTJDE(date)+float64(direction)*localSolarEclipseDefaultSearchYears*365.25,
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direction, includeCurrent, SolarEclipseLocalSearchTotal, lon, lat, height, date.Location(),
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calculator, mode,
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)
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return info, ok
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}
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func searchLocalAnnularSolarEclipse(
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@@ -446,27 +417,13 @@ func searchLocalAnnularSolarEclipse(
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calculator localSolarEclipseCalculator,
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mode localSolarEclipseQueryMode,
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) (LocalSolarEclipseInfo, bool) {
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targetTT := solarEclipseTimeToTTJDE(date)
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candidateTT := basic.CalcMoonSHByJDE(targetTT, 0)
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for i := 0; i < localSolarEclipseSearchLimit; i++ {
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if isPotentialLocalSolarEclipse(candidateTT) {
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globalResult := calculator.global(candidateTT)
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if globalResult.HasAnnular || globalResult.HasHybrid {
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result := calculator.local(globalResult.GreatestEclipse, lon, lat, height)
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if result.HasAnnular && !result.HasTotal {
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info := localSolarEclipseInfoFromBasic(result, lon, lat, height, date.Location())
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if (mode != localSolarEclipseQueryVisible || localCentralSolarEclipseVisible(info)) &&
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localSolarEclipseMatchesDirection(result.GreatestEclipse, targetTT, direction, includeCurrent) {
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return info, true
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}
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}
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}
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}
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candidateTT = nextEclipseSearchCandidateTT(candidateTT, 0, direction, localSolarEclipseSynodicMonthDays)
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}
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return LocalSolarEclipseInfo{}, false
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info, _, ok := searchLocalCentralSolarEclipse(
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solarEclipseTimeToTTJDE(date),
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solarEclipseTimeToTTJDE(date)+float64(direction)*localSolarEclipseDefaultSearchYears*365.25,
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direction, includeCurrent, SolarEclipseLocalSearchAnnular, lon, lat, height, date.Location(),
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calculator, mode,
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)
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return info, ok
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}
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func isPotentialLocalSolarEclipse(newMoonTT float64) bool {
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