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
45 lines
1.2 KiB
Go
45 lines
1.2 KiB
Go
package basic
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import (
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"math"
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"testing"
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. "b612.me/astro/tools"
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)
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func TestEclipticToEquatorialCachedObliquityMatchesRepeatedEvaluation(t *testing.T) {
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for _, test := range []struct {
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jde float64
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lo float64
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bo float64
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}{
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{jde: 2451545.0, lo: 0, bo: 0},
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{jde: 2460832.0, lo: 193.25, bo: -5.75},
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{jde: 2378496.5, lo: 359.999, bo: 87.5},
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} {
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legacyDec := ArcSin(
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Sin(test.bo)*Cos(TrueObliquity(test.jde)) +
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Cos(test.bo)*Sin(TrueObliquity(test.jde))*Sin(test.lo),
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)
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legacyRA := math.Atan2(
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Sin(test.lo)*Cos(TrueObliquity(test.jde))-Tan(test.bo)*Sin(TrueObliquity(test.jde)),
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Cos(test.lo),
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) * 180 / math.Pi
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if legacyRA < 0 {
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legacyRA += 360
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}
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ra, dec := LoBoToRaDec(test.jde, test.lo, test.bo)
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if ra != legacyRA || dec != legacyDec {
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t.Fatalf("LoBoToRaDec(%v, %v, %v) = %.15g %.15g, want %.15g %.15g",
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test.jde, test.lo, test.bo, ra, dec, legacyRA, legacyDec)
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}
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if got := LoToRa(test.jde, test.lo, test.bo); got != legacyRA {
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t.Fatalf("LoToRa(%v, %v, %v) = %.15g, want %.15g", test.jde, test.lo, test.bo, got, legacyRA)
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}
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if got := BoToDec(test.jde, test.lo, test.bo); got != legacyDec {
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t.Fatalf("BoToDec(%v, %v, %v) = %.15g, want %.15g", test.jde, test.lo, test.bo, got, legacyDec)
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}
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}
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}
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