b612
044f2f4381
- 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
45 lines
1.5 KiB
Go
45 lines
1.5 KiB
Go
package formula
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import (
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"math"
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"testing"
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)
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func TestTIOLocator(t *testing.T) {
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// 2002-09-29 0h TT（MJD 52541）：s′ = −6.216698469981019e-12 rad。
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got := TIOLocatorArcsec(2452541.5) * arcsecToRadian
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assertFormulaClose(t, "TIOLocator", got, -0.6216698469981019309e-11, 1e-24)
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if !math.IsNaN(TIOLocatorArcsec(math.NaN())) {
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t.Fatal("expected NaN")
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}
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}
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func TestPolarMotionMatrix(t *testing.T) {
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const r2as = 1 / arcsecToRadian
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w := PolarMotionMatrix(2.55060238e-7*r2as, 1.860359247e-6*r2as, -0.1367174580728891460e-10*r2as)
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want := [3][3]float64{
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{0.9999999999999674721, -0.1367174580728846989e-10, 0.2550602379999972345e-6},
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{0.1414624947957029801e-10, 0.9999999999982695317, -0.1860359246998866389e-5},
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{-0.2550602379741215021e-6, 0.1860359247002414021e-5, 0.9999999999982370039},
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}
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for i := range want {
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for j := range want[i] {
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assertFormulaClose(t, "PolarMotionMatrix", w[i][j], want[i][j], 1e-16)
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}
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}
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}
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func TestCelestialPoleOffsetMatrix(t *testing.T) {
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// 改正后的极方向必须被映射到 z 轴：Δ·(dX, dY, 1) ≈ (0, 0, 1)。
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d := CelestialPoleOffsetMatrix(0.3, -0.2)
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x, y := 0.3*arcsecToRadian/1000, -0.2*arcsecToRadian/1000
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p := [3]float64{x, y, 1}
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for i, want := range [3]float64{0, 0, 1} {
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got := d[i][0]*p[0] + d[i][1]*p[1] + d[i][2]*p[2]
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assertFormulaClose(t, "CelestialPoleOffsetMatrix", got, want, 1e-20)
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}
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if !math.IsNaN(CelestialPoleOffsetMatrix(math.Inf(1), 0)[0][0]) {
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t.Fatal("expected NaN matrix")
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}
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}
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