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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package venus
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import (
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"b612.me/astro/basic"
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"b612.me/astro/internal/ephem"
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"testing"
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"time"
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)
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type contextAPI interface {
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Altitude(date time.Time, lon, lat float64) float64
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AltitudeN(date time.Time, lon, lat float64, n int) float64
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ApparentBo(date time.Time) float64
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ApparentBoN(date time.Time, n int) float64
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ApparentDec(date time.Time) float64
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ApparentDecN(date time.Time, n int) float64
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ApparentLo(date time.Time) float64
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ApparentLoN(date time.Time, n int) float64
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ApparentMagnitude(date time.Time) float64
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ApparentMagnitudeN(date time.Time, n int) float64
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ApparentRa(date time.Time) float64
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ApparentRaDec(date time.Time) (float64, float64)
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ApparentRaDecN(date time.Time, n int) (float64, float64)
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ApparentRaN(date time.Time, n int) float64
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AscendingNode(date time.Time) float64
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AscendingNodeN(date time.Time, n int) float64
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Azimuth(date time.Time, lon, lat float64) float64
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AzimuthN(date time.Time, lon, lat float64, n int) float64
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BrightLimbPositionAngle(date time.Time) float64
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BrightLimbPositionAngleN(date time.Time, n int) float64
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ClosestTransit(date time.Time) TransitInfo
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CulminationTime(date time.Time, lon float64) time.Time
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CulminationTimeN(date time.Time, lon float64, n int) time.Time
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DescendingNode(date time.Time) float64
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DescendingNodeN(date time.Time, n int) float64
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Diameter(date time.Time) float64
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DiameterN(date time.Time, n int) float64
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DownTime(date time.Time, lon, lat, height float64, aero bool) (time.Time, error)
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DownTimeN(date time.Time, lon, lat, height float64, aero bool, n int) (time.Time, error)
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EarthDistance(date time.Time) float64
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EarthDistanceN(date time.Time, n int) float64
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HourAngle(date time.Time, lon float64) float64
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HourAngleN(date time.Time, lon float64, n int) float64
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IlluminatedFraction(date time.Time) float64
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IlluminatedFractionN(date time.Time, n int) float64
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LastConjunction(date time.Time) time.Time
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LastGreatestElongation(date time.Time) time.Time
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LastGreatestElongationEast(date time.Time) time.Time
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LastGreatestElongationWest(date time.Time) time.Time
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LastInferiorConjunction(date time.Time) time.Time
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LastProgradeToRetrograde(date time.Time) time.Time
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LastRetrograde(date time.Time) time.Time
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LastRetrogradeToPrograde(date time.Time) time.Time
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LastSuperiorConjunction(date time.Time) time.Time
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LastTransit(date time.Time) TransitInfo
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LocalTransit(transit TransitInfo, lon, lat, height float64) LocalTransitInfo
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NextConjunction(date time.Time) time.Time
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NextGreatestElongation(date time.Time) time.Time
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NextGreatestElongationEast(date time.Time) time.Time
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NextGreatestElongationWest(date time.Time) time.Time
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NextInferiorConjunction(date time.Time) time.Time
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NextProgradeToRetrograde(date time.Time) time.Time
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NextRetrograde(date time.Time) time.Time
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NextRetrogradeToPrograde(date time.Time) time.Time
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NextSuperiorConjunction(date time.Time) time.Time
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NextTransit(date time.Time) TransitInfo
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ParallacticAngle(date time.Time, lon, lat float64) float64
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ParallacticAngleN(date time.Time, lon, lat float64, n int) float64
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Phase(date time.Time) float64
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PhaseAngle(date time.Time) float64
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PhaseAngleN(date time.Time, n int) float64
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PhaseN(date time.Time, n int) float64
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Physical(date time.Time) PhysicalInfo
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PhysicalN(date time.Time, n int) PhysicalInfo
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RiseTime(date time.Time, lon, lat, height float64, aero bool) (time.Time, error)
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RiseTimeN(date time.Time, lon, lat, height float64, aero bool, n int) (time.Time, error)
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Semidiameter(date time.Time) float64
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SemidiameterN(date time.Time, n int) float64
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SetTime(date time.Time, lon, lat, height float64, aero bool) (time.Time, error)
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SetTimeN(date time.Time, lon, lat, height float64, aero bool, n int) (time.Time, error)
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SunDistance(date time.Time) float64
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SunDistanceN(date time.Time, n int) float64
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Zenith(date time.Time, lon, lat float64) float64
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ZenithN(date time.Time, lon, lat float64, n int) float64
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}
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var _ contextAPI = (*Venus)(nil)
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func TestContextModuleIsolation(t *testing.T) {
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previous := basic.GetEphemerisModel()
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t.Cleanup(func() { basic.SetEphemerisModel(previous) })
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date := time.Date(2024, 10, 6, 12, 0, 0, 0, time.UTC)
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for _, model := range []ephem.Model{ephem.Legacy, ephem.Semianalytic} {
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basic.SetEphemerisModel(basic.EphemerisModel(model))
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want := ApparentLo(date)
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module := NewWithInstance(ephem.NewModelInstance(model))
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basic.SetEphemerisModel(basic.EphemerisModel(1 - int(model)))
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if got := module.ApparentLo(date); got != want {
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t.Fatalf("model %d: longitude %.12f, want %.12f", model, got, want)
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}
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}
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}
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