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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@@ -1,3 +1,4 @@
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// 低精度日月基线与高精度派生量的 n 截断收敛契约。
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package astro_test
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import (
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@@ -125,51 +126,47 @@ func TestLowPrecisionSunMoonBaselineRegression(t *testing.T) {
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}
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}
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func TestDerivedHighPrecisionTruncationFullMatchesDefault(t *testing.T) {
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jd := 2469808.7654321
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func derivedTruncationCases(samples []lowPrecisionSample) []truncationCase {
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jdOf := func(index int) float64 { return samples[index].TTJD }
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lon := 116.391
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lat := 39.907
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tz := 8.0
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assertSame := func(name string, got, want float64) {
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t.Helper()
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if math.Float64bits(got) != math.Float64bits(want) {
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t.Fatalf("%s full-n mismatch", name)
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}
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// withSite 把带观测点经纬度与时区的入口适配成 jd 探针。
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withSite := func(f func(jd, lon, lat, tz float64, n int) float64) func(float64, int) float64 {
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return func(jd float64, n int) float64 { return f(jd, lon, lat, tz, n) }
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}
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assertSamePair := func(name string, got1, got2, want1, want2 float64) {
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t.Helper()
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assertSame(name+".1", got1, want1)
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assertSame(name+".2", got2, want2)
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withSiteRaDec := func(f func(jd, lon, lat, tz float64, n int) (float64, float64)) func(float64, int) (float64, float64) {
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return func(jd float64, n int) (float64, float64) { return f(jd, lon, lat, tz, n) }
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}
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assertSame("HSunTrueLo", basic.HSunTrueLo(jd), basic.HSunTrueLoN(jd, -1))
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assertSame("HSunTrueBo", basic.HSunTrueBo(jd), basic.HSunTrueBoN(jd, -1))
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assertSame("HSunApparentLo", basic.HSunApparentLo(jd), basic.HSunApparentLoN(jd, -1))
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assertSame("SunLoGXC", basic.SunLoGXC(jd), basic.SunLoGXCN(jd, -1))
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assertSame("EarthAway", basic.EarthAway(jd), basic.EarthAwayN(jd, -1))
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assertSame("HSunApparentRa", basic.HSunApparentRa(jd), basic.HSunApparentRaN(jd, -1))
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assertSame("HSunTrueRa", basic.HSunTrueRa(jd), basic.HSunTrueRaN(jd, -1))
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assertSame("HSunApparentDec", basic.HSunApparentDec(jd), basic.HSunApparentDecN(jd, -1))
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assertSame("HSunTrueDec", basic.HSunTrueDec(jd), basic.HSunTrueDecN(jd, -1))
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ra1, dec1 := basic.HSunApparentRaDec(jd)
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ra2, dec2 := basic.HSunApparentRaDecN(jd, -1)
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assertSamePair("HSunApparentRaDec", ra1, dec1, ra2, dec2)
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assertSame("HMoonTrueLo", basic.HMoonTrueLo(jd), basic.HMoonTrueLoN(jd, -1))
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assertSame("HMoonTrueBo", basic.HMoonTrueBo(jd), basic.HMoonTrueBoN(jd, -1))
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assertSame("HMoonAway", basic.HMoonAway(jd), basic.HMoonAwayN(jd, -1))
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assertSame("HMoonApparentLo", basic.HMoonApparentLo(jd), basic.HMoonApparentLoN(jd, -1))
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assertSame("HMoonTrueRa", basic.HMoonTrueRa(jd), basic.HMoonTrueRaN(jd, -1))
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assertSame("HMoonTrueDec", basic.HMoonTrueDec(jd), basic.HMoonTrueDecN(jd, -1))
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ra1, dec1 = basic.HMoonTrueRaDec(jd)
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ra2, dec2 = basic.HMoonTrueRaDecN(jd, -1)
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assertSamePair("HMoonTrueRaDec", ra1, dec1, ra2, dec2)
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ra1, dec1 = basic.HMoonApparentRaDec(jd, lon, lat, tz)
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ra2, dec2 = basic.HMoonApparentRaDecN(jd, lon, lat, tz, -1)
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assertSamePair("HMoonApparentRaDec", ra1, dec1, ra2, dec2)
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assertSame("HMoonApparentRa", basic.HMoonApparentRa(jd, lon, lat, tz), basic.HMoonApparentRaN(jd, lon, lat, tz, -1))
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assertSame("HMoonApparentDec", basic.HMoonApparentDec(jd, lon, lat, tz), basic.HMoonApparentDecN(jd, lon, lat, tz, -1))
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assertSame("HMoonAzimuth", basic.HMoonAzimuth(jd, lon, lat, tz), basic.HMoonAzimuthN(jd, lon, lat, tz, -1))
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assertSame("HMoonHeight", basic.HMoonHeight(jd, lon, lat, tz), basic.HMoonHeightN(jd, lon, lat, tz, -1))
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// 上限按 48 个采样点实测最坏值放宽 5 倍以上给出，随 n 递减。
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return []truncationCase{
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scalarTruncation("HSunTrueLoN", jdOf, basic.HSunTrueLoN, true, []float64{0.15, 0.05, 0.02, 0.006}),
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scalarTruncation("HSunTrueBoN", jdOf, basic.HSunTrueBoN, true, []float64{1e-3, 5e-4, 3e-4, 1.5e-4}),
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scalarTruncation("HSunApparentLoN", jdOf, basic.HSunApparentLoN, true, []float64{0.15, 0.05, 0.02, 0.006}),
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scalarTruncation("SunLoGXCN", jdOf, basic.SunLoGXCN, true, []float64{1e-5, 2e-6, 1e-6, 3e-7}),
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scalarTruncation("EarthAwayN", jdOf, basic.EarthAwayN, false, []float64{1e-3, 3e-4, 1e-4, 3e-5}),
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scalarTruncation("HSunApparentRaN", jdOf, basic.HSunApparentRaN, true, []float64{0.15, 0.05, 0.02, 0.006}),
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scalarTruncation("HSunTrueRaN", jdOf, basic.HSunTrueRaN, true, []float64{0.15, 0.05, 0.02, 0.006}),
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scalarTruncation("HSunApparentDecN", jdOf, basic.HSunApparentDecN, true, []float64{0.05, 0.02, 0.008, 0.003}),
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scalarTruncation("HSunTrueDecN", jdOf, basic.HSunTrueDecN, true, []float64{0.05, 0.02, 0.008, 0.003}),
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pairTruncation("HSunApparentRaDecN", jdOf, basic.HSunApparentRaDecN, []float64{0.15, 0.05, 0.02, 0.006}),
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scalarTruncation("HMoonTrueLoN", jdOf, basic.HMoonTrueLoN, true, []float64{5, 2.5, 1, 0.25}),
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scalarTruncation("HMoonTrueBoN", jdOf, basic.HMoonTrueBoN, true, []float64{3, 0.75, 0.15, 0.06}),
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scalarTruncation("HMoonAwayN", jdOf, basic.HMoonAwayN, false, []float64{40000, 7000, 2500, 400}),
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scalarTruncation("HMoonApparentLoN", jdOf, basic.HMoonApparentLoN, true, []float64{5, 2.5, 1, 0.25}),
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scalarTruncation("HMoonTrueRaN", jdOf, basic.HMoonTrueRaN, true, []float64{5, 2.5, 1, 0.3}),
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scalarTruncation("HMoonTrueDecN", jdOf, basic.HMoonTrueDecN, true, []float64{3, 1, 0.4, 0.1}),
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pairTruncation("HMoonTrueRaDecN", jdOf, basic.HMoonTrueRaDecN, []float64{5, 2.5, 1, 0.3}),
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scalarTruncation("HMoonApparentRaN", jdOf, withSite(basic.HMoonApparentRaN), true, []float64{5, 2.5, 1, 0.3}),
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scalarTruncation("HMoonApparentDecN", jdOf, withSite(basic.HMoonApparentDecN), true, []float64{4, 1, 0.3, 0.1}),
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pairTruncation("HMoonApparentRaDecN", jdOf, withSiteRaDec(basic.HMoonApparentRaDecN), []float64{5, 2.5, 1, 0.3}),
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scalarTruncation("HMoonAzimuthN", jdOf, withSite(basic.HMoonAzimuthN), true, []float64{9, 4, 2, 0.9}),
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scalarTruncation("HMoonHeightN", jdOf, withSite(basic.HMoonHeightN), true, []float64{4, 2, 0.7, 0.15}),
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}
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}
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func TestDerivedHighPrecisionTruncationConverges(t *testing.T) {
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samples := loadLowPrecisionSamples(t)
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assertTruncationConverges(t, derivedTruncationCases(samples), len(samples))
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}
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