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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@@ -91,3 +91,140 @@ func TestSharedObservationRejectsNonFiniteQuery(t *testing.T) {
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t.Fatalf("StarRiseTime error = %v, want ErrInvalidObservationInput", err)
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}
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}
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func TestMoonMaximumDeclinationEventsRejectNonFiniteQuery(t *testing.T) {
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nonFinite := []struct {
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name string
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jd float64
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}{
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{"NaN", math.NaN()},
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{"+Inf", math.Inf(1)},
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{"-Inf", math.Inf(-1)},
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}
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events := []struct {
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name string
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fn func(float64) DeclinationEvent
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}{
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{"LastMoonMaximumNorthDeclination", LastMoonMaximumNorthDeclination},
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{"NextMoonMaximumNorthDeclination", NextMoonMaximumNorthDeclination},
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{"ClosestMoonMaximumNorthDeclination", ClosestMoonMaximumNorthDeclination},
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{"LastMoonMaximumSouthDeclination", LastMoonMaximumSouthDeclination},
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{"NextMoonMaximumSouthDeclination", NextMoonMaximumSouthDeclination},
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{"ClosestMoonMaximumSouthDeclination", ClosestMoonMaximumSouthDeclination},
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}
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for _, event := range events {
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for _, query := range nonFinite {
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// A non-finite query used to seed an out-of-range cycle index and spin in the
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// sampling sweep forever; it must return the zero event instead.
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got := event.fn(query.jd)
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if got.JDE != 0 || got.Declination != 0 {
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t.Fatalf("%s(%s) = %+v, want zero event", event.name, query.name, got)
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}
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}
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}
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// The finite path must keep working.
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const jd = 2460310.5
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north := NextMoonMaximumNorthDeclination(jd)
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if !(north.JDE > jd) || north.Declination == 0 {
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t.Fatalf("NextMoonMaximumNorthDeclination(%v) = %+v, want a later event", jd, north)
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}
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south := LastMoonMaximumSouthDeclination(jd)
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if !(south.JDE <= jd) || south.Declination == 0 {
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t.Fatalf("LastMoonMaximumSouthDeclination(%v) = %+v, want an earlier event", jd, south)
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}
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}
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func TestOuterPlanetStationEventsRejectNonFiniteQuery(t *testing.T) {
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nonFinite := []struct {
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name string
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jd float64
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}{
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{"NaN", math.NaN()},
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{"+Inf", math.Inf(1)},
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{"-Inf", math.Inf(-1)},
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}
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events := []struct {
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name string
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fn func(float64) float64
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}{
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{"Mercury", NextMercuryProgradeToRetrograde},
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{"Mercury retrograde", NextMercuryRetrograde},
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{"Venus", NextVenusProgradeToRetrograde},
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{"Venus retrograde", NextVenusRetrograde},
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{"Mars", NextMarsProgradeToRetrograde},
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{"Jupiter", NextJupiterProgradeToRetrograde},
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{"Saturn", NextSaturnProgradeToRetrograde},
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{"Uranus", NextUranusProgradeToRetrograde},
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{"Neptune", NextNeptuneProgradeToRetrograde},
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{"Mars opposition", NextMarsOpposition},
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{"Jupiter opposition", NextJupiterOpposition},
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{"Saturn opposition", NextSaturnOpposition},
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{"Uranus opposition", NextUranusOpposition},
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{"Neptune opposition", NextNeptuneOpposition},
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{"Mars eastern quadrature", NextMarsEasternQuadrature},
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{"Jupiter eastern quadrature", NextJupiterEasternQuadrature},
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{"Saturn eastern quadrature", NextSaturnEasternQuadrature},
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{"Uranus eastern quadrature", NextUranusEasternQuadrature},
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{"Neptune eastern quadrature", NextNeptuneEasternQuadrature},
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}
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for _, event := range events {
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for _, query := range nonFinite {
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if got := event.fn(query.jd); !math.IsNaN(got) {
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t.Fatalf("%s(%s) = %v, want NaN", event.name, query.name, got)
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}
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}
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}
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}
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func TestOuterPlanetLastStationEventsRejectNonFiniteQuery(t *testing.T) {
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events := []struct {
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name string
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fn func(float64) float64
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}{
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{"LastMarsProgradeToRetrograde", LastMarsProgradeToRetrograde},
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{"LastMarsRetrogradeToPrograde", LastMarsRetrogradeToPrograde},
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{"LastJupiterProgradeToRetrograde", LastJupiterProgradeToRetrograde},
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{"LastJupiterRetrogradeToPrograde", LastJupiterRetrogradeToPrograde},
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{"LastSaturnProgradeToRetrograde", LastSaturnProgradeToRetrograde},
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{"LastSaturnRetrogradeToPrograde", LastSaturnRetrogradeToPrograde},
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{"LastUranusProgradeToRetrograde", LastUranusProgradeToRetrograde},
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{"LastUranusRetrogradeToPrograde", LastUranusRetrogradeToPrograde},
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{"LastNeptuneProgradeToRetrograde", LastNeptuneProgradeToRetrograde},
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{"LastNeptuneRetrogradeToPrograde", LastNeptuneRetrogradeToPrograde},
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}
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for _, event := range events {
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if got := event.fn(math.NaN()); !math.IsNaN(got) {
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t.Fatalf("%s(NaN) = %v, want NaN", event.name, got)
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}
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}
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}
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// 查询落在事件之后 1 秒：首候选必须被侧向不变量拒绝，第二候选也必须通过同一不变量。
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func TestOuterPlanetStationSecondCandidateKeepsSideInvariant(t *testing.T) {
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const offsetSeconds = 1.0
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cases := []struct {
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name string
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fn func(float64) float64
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}{
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{"Mars", NextMarsProgradeToRetrograde},
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{"Jupiter", NextJupiterProgradeToRetrograde},
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{"Saturn", NextSaturnProgradeToRetrograde},
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{"Uranus", NextUranusProgradeToRetrograde},
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{"Neptune", NextNeptuneProgradeToRetrograde},
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}
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for _, tc := range cases {
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event := tc.fn(JDECalc(2025, 1, 1))
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if math.IsNaN(event) {
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t.Fatalf("%s: no station event found", tc.name)
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}
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query := event + offsetSeconds/86400.0
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got := tc.fn(TD2UT(query, true))
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if math.IsNaN(got) {
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t.Fatalf("%s: second candidate rejected as NaN at %s", tc.name, JDE2Date(query))
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}
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if got < query-stationQueryToleranceUT {
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t.Fatalf("%s: returned %.9f before the query %.9f", tc.name, got, query)
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}
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}
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}
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