feat: 引入可切换星历模型并扩展天象观测链路
- 新增半解析、旧模型、自定义与多源堆叠星历实例,提供 Context、Instance、SPK 读取及状态与视位置计算 - 统一太阳、月球和行星实例接口,扩展黄经穿越、留、相位、最近角距、偕日可见、任意高度升落、轨道节点及凌日等天象查询 - 完善日月食、月掩与凌日的月缘剖面、有限盘面接触、站心修正、局地可见性、全球路径和地图输出 - 新增 SVG、GeoJSON、KML 天象输出及凌日、月掩和月缘地形相关缓存与几何求解 - 新增恒星星表导入与查询,支持 CSV、Hipparcos、BSC5、Stellarium 等格式及名称、交叉标识、锥面检索和星等过滤 - 补充 IAU 2006、地球定向、折射消光、大气观测、轨道传播及半解析行星/月球数据支持 - 将默认未来民用时标切换为 TimeScaleLeapHour,更新 2027–2400 农历速查表、中文日期解析和时区边界处理 - 增加事件基线、跨模型回归、几何边界、月缘地形和输出契约测试,完善中英文手册、示例资源、NOTICE 与忽略规则
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// 事件回归基线按星历模型分文件:旧模型用 testdata/<name>.json,新模型用 testdata/semianalytic/<name>.json。
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// ASTRO_UPDATE_GOLDEN=1 且当前为新模型时,以旧基线的输入时刻重算并重写新模型基线;旧模型基线从不改写。
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package basic
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import (
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"encoding/json"
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"math"
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"os"
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"path/filepath"
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"sort"
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"testing"
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"b612.me/astro/internal/ephem"
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"b612.me/astro/internal/ephemtest"
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)
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type eventBaselineSample struct {
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InputUTC string `json:"input_utc"`
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TTJDBits uint64 `json:"tt_jd_bits"`
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Events map[string]uint64 `json:"events"`
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}
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type eventBaselineFile struct {
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Samples []eventBaselineSample `json:"samples"`
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}
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type namedEventFunc struct {
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name string
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fn func(float64) float64
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}
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func readEventBaseline(t *testing.T, path string) eventBaselineFile {
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t.Helper()
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data, err := os.ReadFile(path)
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if err != nil {
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t.Fatal(err)
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}
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var b eventBaselineFile
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if err := json.Unmarshal(data, &b); err != nil {
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t.Fatal(err)
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}
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if len(b.Samples) == 0 {
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t.Fatalf("empty event baseline %s", path)
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}
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return b
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}
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// eventBaselineData 当前模型的基线原始字节;需要时先重写新模型基线。
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func eventBaselineData(t *testing.T, legacyPath string, cases []namedEventFunc) []byte {
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t.Helper()
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path := ephemtest.Golden(legacyPath)
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if ephemtest.Update() && ephem.Active() == ephem.Semianalytic {
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src := readEventBaseline(t, legacyPath)
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out := eventBaselineFile{Samples: make([]eventBaselineSample, len(src.Samples))}
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for i, s := range src.Samples {
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jd := math.Float64frombits(s.TTJDBits)
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ev := make(map[string]uint64, len(cases))
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for _, c := range cases {
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ev[c.name] = math.Float64bits(c.fn(jd))
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}
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out.Samples[i] = eventBaselineSample{InputUTC: s.InputUTC, TTJDBits: s.TTJDBits, Events: ev}
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}
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data, err := json.MarshalIndent(out, "", " ")
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if err != nil {
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t.Fatal(err)
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}
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if err := os.MkdirAll(filepath.Dir(path), 0o755); err != nil {
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t.Fatal(err)
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}
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if err := os.WriteFile(path, append(data, '\n'), 0o644); err != nil {
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t.Fatal(err)
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}
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names := make([]string, 0, len(cases))
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for _, c := range cases {
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names = append(names, c.name)
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}
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sort.Strings(names)
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t.Logf("rewrote %s: %d samples × %d events", path, len(out.Samples), len(names))
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}
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data, err := os.ReadFile(path)
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if err != nil {
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t.Fatalf("%v (regenerate with ASTRO_UPDATE_GOLDEN=1 go test)", err)
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}
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return data
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}
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