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feat: 完善时标与天象几何计算并扩展输出接口

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- 新增时标、ΔT 模型、质心时间与 UT1 支持
- 改进日月食、月掩、行星事件及路径边界计算
- 完善恒星三维自行与动态距离传播
- 扩展 SVG、GeoJSON、KML 输出与底层距离换算工具
- 整理中英文手册、示例资源及回归测试
This commit is contained in:
兔子
2026-09-23 18:55:12 +08:00
parent 1f31a9b5b5
commit 16c62a97d5
503 changed files with 33290 additions and 9471 deletions
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basic/planet_apparent.go
+20 -20
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@@ -15,17 +15,17 @@ type planetGeocentricPosition struct {
bo float64
}
func planetHeliocentricXYZN(planetIndex int, jd float64, n int) (float64, float64, float64) {
l := planet.WherePlanetN(planetIndex, 0, jd, n)
b := planet.WherePlanetN(planetIndex, 1, jd, n)
r := planet.WherePlanetN(planetIndex, 2, jd, n)
func planetHeliocentricXYZN(planetIndex int, jde float64, n int) (float64, float64, float64) {
l := planet.WherePlanetN(planetIndex, 0, jde, n)
b := planet.WherePlanetN(planetIndex, 1, jde, n)
r := planet.WherePlanetN(planetIndex, 2, jde, n)
return sphericalToRectangular(l, b, r)
}
func earthHeliocentricXYZN(jd float64, n int) (float64, float64, float64) {
l := planet.WherePlanetN(-1, 0, jd, n)
b := planet.WherePlanetN(-1, 1, jd, n)
r := planet.WherePlanetN(-1, 2, jd, n)
func earthHeliocentricXYZN(jde float64, n int) (float64, float64, float64) {
l := planet.WherePlanetN(-1, 0, jde, n)
b := planet.WherePlanetN(-1, 1, jde, n)
r := planet.WherePlanetN(-1, 2, jde, n)
return sphericalToRectangular(l, b, r)
}
@@ -48,9 +48,9 @@ func geocentricPositionFromRectangular(x, y, z float64) planetGeocentricPosition
}
}
func planetGeocentricPositionN(planetIndex int, planetJD, earthJD float64, n int) planetGeocentricPosition {
func planetGeocentricPositionN(planetIndex int, planetJD, earthJDE float64, n int) planetGeocentricPosition {
px, py, pz := planetHeliocentricXYZN(planetIndex, planetJD, n)
ex, ey, ez := earthHeliocentricXYZN(earthJD, n)
ex, ey, ez := earthHeliocentricXYZN(earthJDE, n)
return geocentricPositionFromRectangular(px-ex, py-ey, pz-ez)
}
@@ -66,26 +66,26 @@ func planetApparentGeocentricPositionN(planetIndex int, jd float64, n int) (plan
func planetApparentGeocentricPositionAndDistanceN(
planetIndex int,
jd float64,
jde float64,
n int,
) (planetGeocentricPosition, float64, float64) {
ex, ey, ez := earthHeliocentricXYZN(jd, n)
geoNow := planetGeocentricPositionWithEarthN(planetIndex, jd, ex, ey, ez, n)
ex, ey, ez := earthHeliocentricXYZN(jde, n)
geoNow := planetGeocentricPositionWithEarthN(planetIndex, jde, ex, ey, ez, n)
distance := math.Sqrt(geoNow.x*geoNow.x + geoNow.y*geoNow.y + geoNow.z*geoNow.z)
tau := 0.0057755183 * distance
geo := planetGeocentricPositionWithEarthN(planetIndex, jd-tau, ex, ey, ez, n)
geo := planetGeocentricPositionWithEarthN(planetIndex, jde-tau, ex, ey, ez, n)
baseLo := geo.lo
baseBo := geo.bo
geo.lo = Limit360(baseLo + GXCLo(baseLo, baseBo, jd)/3600.0 + Nutation2000Bi(jd))
geo.bo = baseBo + GXCBo(baseLo, baseBo, jd)/3600.0
geo.lo = Limit360(baseLo + GXCLo(baseLo, baseBo, jde)/3600.0 + Nutation2000Bi(jde))
geo.bo = baseBo + GXCBo(baseLo, baseBo, jde)/3600.0
return geo, tau, distance
}
func planetTrueGeocentricPositionN(planetIndex int, jd float64, n int) (planetGeocentricPosition, float64) {
ex, ey, ez := earthHeliocentricXYZN(jd, n)
geoNow := planetGeocentricPositionWithEarthN(planetIndex, jd, ex, ey, ez, n)
func planetTrueGeocentricPositionN(planetIndex int, jde float64, n int) (planetGeocentricPosition, float64) {
ex, ey, ez := earthHeliocentricXYZN(jde, n)
geoNow := planetGeocentricPositionWithEarthN(planetIndex, jde, ex, ey, ez, n)
tau := 0.0057755183 * math.Sqrt(geoNow.x*geoNow.x+geoNow.y*geoNow.y+geoNow.z*geoNow.z)
return planetGeocentricPositionWithEarthN(planetIndex, jd-tau, ex, ey, ez, n), tau
return planetGeocentricPositionWithEarthN(planetIndex, jde-tau, ex, ey, ez, n), tau
}
func planetEarthAwayExplicitN(planetIndex int, jd float64, n int) float64 {