b612
2bf8478639
- 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
80 lines
2.8 KiB
Go
80 lines
2.8 KiB
Go
package geojson_test
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import (
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"testing"
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"time"
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"b612.me/astro/basic"
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"b612.me/astro/geojson"
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"b612.me/astro/internal/geodata"
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"b612.me/astro/moon"
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)
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func TestOccultationDistantEnvelopesRemainComplete(t *testing.T) {
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if err := basic.LoadStarData(); err != nil {
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t.Fatal(err)
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}
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for _, test := range []struct {
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name string
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year, month, day int
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planet moon.OccultationPlanet
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hr int
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}{
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{"mercury", 26, 4, 4, moon.OccultationMercury, 0},
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{"aldebaran", 26, 7, 26, "", 1457},
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{"regulus", 4026, 12, 14, "", 3982},
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{"saturn", 4026, 12, 29, moon.OccultationSaturn, 0},
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{"mars-fold", 1426, 7, 1, moon.OccultationMars, 0},
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{"venus-tangent", 1227, 5, 19, moon.OccultationVenus, 0},
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{"jupiter-horizon", 1226, 12, 23, moon.OccultationJupiter, 0},
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{"jupiter-time", 3627, 9, 20, moon.OccultationJupiter, 0},
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} {
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for _, algorithm := range []moon.OccultationPathAlgorithm{moon.OccultationPathAlgorithmExact, moon.OccultationPathAlgorithmOptimized} {
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t.Run(test.name+"/"+string(algorithm), func(t *testing.T) {
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day := time.Date(test.year, time.Month(test.month), test.day, 0, 0, 0, 0, time.UTC)
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options := moon.OccultationPathOptions{Algorithm: algorithm, Step: 20 * time.Minute, TargetSpacingKM: 900, DisableFootprints: true, RiseSetStep: time.Minute}
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var data []byte
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var err error
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role := "partial-band"
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if test.hr == 0 {
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paths, findErr := moon.FindPlanetOccultationPaths(day.Add(-12*time.Hour), day.Add(36*time.Hour), test.planet, options)
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if findErr != nil || len(paths) != 1 {
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t.Fatalf("paths=%d err=%v", len(paths), findErr)
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}
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data, err = geojson.MarshalPlanetOccultation(paths[0])
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} else {
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catalog, catalogErr := basic.StarDataByHR(test.hr)
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if catalogErr != nil {
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t.Fatal(catalogErr)
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}
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star, starErr := moon.StarCoordinateFromStarData(catalog)
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if starErr != nil {
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t.Fatal(starErr)
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}
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paths, findErr := moon.FindStarOccultationPaths(day.Add(-12*time.Hour), day.Add(36*time.Hour), star, options)
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if findErr != nil || len(paths) != 1 {
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t.Fatalf("paths=%d err=%v", len(paths), findErr)
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}
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data, err = geojson.MarshalStarOccultation(paths[0])
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role = "occultation-band"
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}
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if err != nil {
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t.Fatal(err)
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}
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collection := decodeCollection(t, data)
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assertCollectionCoordinates(t, collection)
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band := featureWithRole(t, collection, role)
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assertClosedMultiPolygon(t, band)
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if test.hr == 0 {
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assertOccultationP2PhaseCurvesInsidePartialBand(t, collection, 2)
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partial := geoJSONMultiPolygonOuterRings(t, band)
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total := geoJSONMultiPolygonOuterRings(t, featureWithRole(t, collection, "total-band"))
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if miss := geodata.SphericalPolygonsPathMissDistanceKM(partial, total, true); miss > 2 {
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t.Fatalf("total extends %.3f km beyond partial", miss)
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}
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}
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})
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}
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}
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}
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