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
72 lines
1.8 KiB
Go
72 lines
1.8 KiB
Go
package basic
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import (
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"math"
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"testing"
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)
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func TestGetJQTime(t *testing.T) {
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originalFunc := func(year, angle int) float64 {
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const iterations = 1
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var day int
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if angle%2 == 0 {
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day = 18
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} else {
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day = 3
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}
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month := 3.0
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if angle%10 != 0 {
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month += float64(angle+15) / 30.0
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} else {
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month += float64(angle) / 30.0
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}
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if month > 12 {
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month -= 12
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}
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jd := JDCalc(year, int(month), float64(day))
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if angle == 0 {
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angle = 360
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}
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for i := 0; i < iterations; i++ {
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for {
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jd0 := jd
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slope := (JQLospec(jd0+0.000005, float64(angle)) - JQLospec(jd0-0.000005, float64(angle))) / 0.00001
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jd = jd0 - (JQLospec(jd0, float64(angle))-float64(angle))/slope
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if math.Abs(jd-jd0) <= 0.00001 {
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break
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}
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}
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jd -= 0.001
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}
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jd += 0.001
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return TT2UTC(jd)
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}
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testCases := []struct {
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year int
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angle int
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}{
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{1900, 0}, {1900, 15}, {1900, 30}, {1900, 45}, {1900, 90}, {1900, 180}, {1900, 270}, {1900, 360},
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{1950, 0}, {1950, 30}, {1950, 90}, {1950, 180}, {1950, 270},
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{2000, 0}, {2000, 15}, {2000, 45}, {2000, 90}, {2000, 360},
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{2023, 0}, {2023, 30}, {2023, 90}, {2023, 180}, {2023, 270},
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{2100, 0}, {2100, 15}, {2100, 30}, {2100, 45}, {2100, 90}, {2100, 180}, {2100, 270}, {2100, 360},
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{2200, 0}, {2200, 30}, {2200, 90}, {2200, 180}, {2200, 270},
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}
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for _, tc := range testCases {
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originalResult := originalFunc(tc.year, tc.angle)
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optimizedResult := GetJQTime(tc.year, tc.angle)
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// 两种解法各自收敛到 1e-5 日，末步残差可达数十微秒；1e-8 日足以区分选错相邻年份的根。
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diff := math.Abs(originalResult - optimizedResult)
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if diff > 1e-8 {
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t.Fatalf("GetJQTime mismatch: year=%d angle=%d original=%.15f optimized=%.15f diff=%.15f",
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tc.year, tc.angle, originalResult, optimizedResult, diff)
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}
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}
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}
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