feat: 完善时标与天象几何计算并扩展输出接口
- 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:
+44
-44
@@ -10,8 +10,8 @@ import (
|
||||
var orbitJ2000Obliquity = EclipticObliquity(orbitReferenceJD, false)
|
||||
|
||||
// OrbitHeliocentricXYZJ2000 返回日心 J2000 平黄道直角坐标，单位 AU。
|
||||
func OrbitHeliocentricXYZJ2000(jd float64, elements OrbitElements) Vector3 {
|
||||
trueAnomaly, radius, resolved, ok := orbitTrueAnomalyAndRadius(jd, elements)
|
||||
func OrbitHeliocentricXYZJ2000(jde float64, elements OrbitElements) Vector3 {
|
||||
trueAnomaly, radius, resolved, ok := orbitTrueAnomalyAndRadius(jde, elements)
|
||||
if !ok {
|
||||
nan := math.NaN()
|
||||
return Vector3{nan, nan, nan}
|
||||
@@ -33,24 +33,24 @@ func OrbitHeliocentricXYZJ2000(jd float64, elements OrbitElements) Vector3 {
|
||||
}
|
||||
|
||||
// OrbitHeliocentricEclipticJ2000 返回日心 J2000 平黄道球坐标，单位度/AU。
|
||||
func OrbitHeliocentricEclipticJ2000(jd float64, elements OrbitElements) (lon, lat, distance float64) {
|
||||
return orbitVectorToEcliptic(OrbitHeliocentricXYZJ2000(jd, elements))
|
||||
func OrbitHeliocentricEclipticJ2000(jde float64, elements OrbitElements) (lon, lat, distance float64) {
|
||||
return orbitVectorToEcliptic(OrbitHeliocentricXYZJ2000(jde, elements))
|
||||
}
|
||||
|
||||
// OrbitHeliocentricXYZ 返回日心历元黄道直角坐标，单位 AU。
|
||||
func OrbitHeliocentricXYZ(jd float64, elements OrbitElements) Vector3 {
|
||||
return eclipticVectorAtReferenceEpoch(OrbitHeliocentricXYZJ2000(jd, elements), orbitReferenceJD, jd)
|
||||
func OrbitHeliocentricXYZ(jde float64, elements OrbitElements) Vector3 {
|
||||
return eclipticVectorAtReferenceEpoch(OrbitHeliocentricXYZJ2000(jde, elements), orbitReferenceJD, jde)
|
||||
}
|
||||
|
||||
// OrbitHeliocentricEcliptic 返回日心历元黄道球坐标，单位度/AU。
|
||||
func OrbitHeliocentricEcliptic(jd float64, elements OrbitElements) (lon, lat, distance float64) {
|
||||
return orbitVectorToEcliptic(OrbitHeliocentricXYZ(jd, elements))
|
||||
func OrbitHeliocentricEcliptic(jde float64, elements OrbitElements) (lon, lat, distance float64) {
|
||||
return orbitVectorToEcliptic(OrbitHeliocentricXYZ(jde, elements))
|
||||
}
|
||||
|
||||
// OrbitGeocentricXYZJ2000 返回地心 J2000 平黄道直角坐标，单位 AU。
|
||||
func OrbitGeocentricXYZJ2000(jd float64, elements OrbitElements) Vector3 {
|
||||
objectVector := OrbitHeliocentricXYZJ2000(jd, elements)
|
||||
earthVector := earthHeliocentricVectorJ2000(jd)
|
||||
func OrbitGeocentricXYZJ2000(jde float64, elements OrbitElements) Vector3 {
|
||||
objectVector := OrbitHeliocentricXYZJ2000(jde, elements)
|
||||
earthVector := earthHeliocentricVectorJ2000(jde)
|
||||
return Vector3{
|
||||
objectVector[0] - earthVector[0],
|
||||
objectVector[1] - earthVector[1],
|
||||
@@ -59,14 +59,14 @@ func OrbitGeocentricXYZJ2000(jd float64, elements OrbitElements) Vector3 {
|
||||
}
|
||||
|
||||
// OrbitGeocentricEclipticJ2000 返回地心 J2000 平黄道球坐标，单位度/AU。
|
||||
func OrbitGeocentricEclipticJ2000(jd float64, elements OrbitElements) (lon, lat, distance float64) {
|
||||
return orbitVectorToEcliptic(OrbitGeocentricXYZJ2000(jd, elements))
|
||||
func OrbitGeocentricEclipticJ2000(jde float64, elements OrbitElements) (lon, lat, distance float64) {
|
||||
return orbitVectorToEcliptic(OrbitGeocentricXYZJ2000(jde, elements))
|
||||
}
|
||||
|
||||
// OrbitGeocentricXYZ 返回地心历元黄道直角坐标，单位 AU。
|
||||
func OrbitGeocentricXYZ(jd float64, elements OrbitElements) Vector3 {
|
||||
objectVector := OrbitHeliocentricXYZ(jd, elements)
|
||||
earthVector := earthHeliocentricVectorOfDate(jd)
|
||||
func OrbitGeocentricXYZ(jde float64, elements OrbitElements) Vector3 {
|
||||
objectVector := OrbitHeliocentricXYZ(jde, elements)
|
||||
earthVector := earthHeliocentricVectorOfDate(jde)
|
||||
return Vector3{
|
||||
objectVector[0] - earthVector[0],
|
||||
objectVector[1] - earthVector[1],
|
||||
@@ -75,33 +75,33 @@ func OrbitGeocentricXYZ(jd float64, elements OrbitElements) Vector3 {
|
||||
}
|
||||
|
||||
// OrbitGeocentricEcliptic 返回地心历元黄道球坐标，单位度/AU。
|
||||
func OrbitGeocentricEcliptic(jd float64, elements OrbitElements) (lon, lat, distance float64) {
|
||||
return orbitVectorToEcliptic(OrbitGeocentricXYZ(jd, elements))
|
||||
func OrbitGeocentricEcliptic(jde float64, elements OrbitElements) (lon, lat, distance float64) {
|
||||
return orbitVectorToEcliptic(OrbitGeocentricXYZ(jde, elements))
|
||||
}
|
||||
|
||||
// OrbitGeocentricEquatorialJ2000 返回地心 J2000 平赤道球坐标，单位度/AU。
|
||||
func OrbitGeocentricEquatorialJ2000(jd float64, elements OrbitElements) (ra, dec, distance float64) {
|
||||
vector := rotateEclipticToEquatorial(OrbitGeocentricXYZJ2000(jd, elements), orbitJ2000Obliquity)
|
||||
func OrbitGeocentricEquatorialJ2000(jde float64, elements OrbitElements) (ra, dec, distance float64) {
|
||||
vector := rotateEclipticToEquatorial(OrbitGeocentricXYZJ2000(jde, elements), orbitJ2000Obliquity)
|
||||
return orbitVectorToEquatorial(vector)
|
||||
}
|
||||
|
||||
// OrbitGeocentricEquatorial 返回地心历元平赤道球坐标，单位度/AU。
|
||||
func OrbitGeocentricEquatorial(jd float64, elements OrbitElements) (ra, dec, distance float64) {
|
||||
vector := rotateEclipticToEquatorial(OrbitGeocentricXYZ(jd, elements), EclipticObliquity(jd, false))
|
||||
func OrbitGeocentricEquatorial(jde float64, elements OrbitElements) (ra, dec, distance float64) {
|
||||
vector := rotateEclipticToEquatorial(OrbitGeocentricXYZ(jde, elements), EclipticObliquity(jde, false))
|
||||
return orbitVectorToEquatorial(vector)
|
||||
}
|
||||
|
||||
// OrbitAstrometricGeocentricXYZJ2000 返回光行时修正后的地心 J2000 平黄道直角坐标，单位 AU。
|
||||
func OrbitAstrometricGeocentricXYZJ2000(jd float64, elements OrbitElements) Vector3 {
|
||||
if !isFinite(jd) {
|
||||
func OrbitAstrometricGeocentricXYZJ2000(jde float64, elements OrbitElements) Vector3 {
|
||||
if !isFinite(jde) {
|
||||
nan := math.NaN()
|
||||
return Vector3{nan, nan, nan}
|
||||
}
|
||||
earthVector := earthHeliocentricVectorJ2000(jd)
|
||||
earthVector := earthHeliocentricVectorJ2000(jde)
|
||||
lightTime := 0.0
|
||||
result := Vector3{}
|
||||
for i := 0; i < 8; i++ {
|
||||
objectVector := OrbitHeliocentricXYZJ2000(jd-lightTime, elements)
|
||||
objectVector := OrbitHeliocentricXYZJ2000(jde-lightTime, elements)
|
||||
result = Vector3{
|
||||
objectVector[0] - earthVector[0],
|
||||
objectVector[1] - earthVector[1],
|
||||
@@ -117,40 +117,40 @@ func OrbitAstrometricGeocentricXYZJ2000(jd float64, elements OrbitElements) Vect
|
||||
}
|
||||
|
||||
// OrbitAstrometricGeocentricEquatorialJ2000 返回光行时修正后的地心 J2000 赤道坐标，单位度/AU。
|
||||
func OrbitAstrometricGeocentricEquatorialJ2000(jd float64, elements OrbitElements) (ra, dec, distance float64) {
|
||||
vector := rotateEclipticToEquatorial(OrbitAstrometricGeocentricXYZJ2000(jd, elements), orbitJ2000Obliquity)
|
||||
func OrbitAstrometricGeocentricEquatorialJ2000(jde float64, elements OrbitElements) (ra, dec, distance float64) {
|
||||
vector := rotateEclipticToEquatorial(OrbitAstrometricGeocentricXYZJ2000(jde, elements), orbitJ2000Obliquity)
|
||||
return orbitVectorToEquatorial(vector)
|
||||
}
|
||||
|
||||
// OrbitApparentGeocentricEcliptic 返回光行时与章动修正后的地心视黄道坐标，单位度/AU。
|
||||
func OrbitApparentGeocentricEcliptic(jd float64, elements OrbitElements) (lon, lat, distance float64) {
|
||||
vectorDate := eclipticVectorAtReferenceEpoch(OrbitAstrometricGeocentricXYZJ2000(jd, elements), orbitReferenceJD, jd)
|
||||
func OrbitApparentGeocentricEcliptic(jde float64, elements OrbitElements) (lon, lat, distance float64) {
|
||||
vectorDate := eclipticVectorAtReferenceEpoch(OrbitAstrometricGeocentricXYZJ2000(jde, elements), orbitReferenceJD, jde)
|
||||
lon, lat, distance = orbitVectorToEcliptic(vectorDate)
|
||||
if math.IsNaN(lon) {
|
||||
return math.NaN(), math.NaN(), math.NaN()
|
||||
}
|
||||
lon = Limit360(lon + Nutation2000Bi(jd))
|
||||
lon = Limit360(lon + Nutation2000Bi(jde))
|
||||
return lon, lat, distance
|
||||
}
|
||||
|
||||
// OrbitApparentGeocentricEquatorial 返回光行时与章动修正后的地心视赤道坐标，单位度/AU。
|
||||
func OrbitApparentGeocentricEquatorial(jd float64, elements OrbitElements) (ra, dec, distance float64) {
|
||||
lon, lat, distance := OrbitApparentGeocentricEcliptic(jd, elements)
|
||||
func OrbitApparentGeocentricEquatorial(jde float64, elements OrbitElements) (ra, dec, distance float64) {
|
||||
lon, lat, distance := OrbitApparentGeocentricEcliptic(jde, elements)
|
||||
if math.IsNaN(lon) {
|
||||
return math.NaN(), math.NaN(), math.NaN()
|
||||
}
|
||||
ra, dec = LoBoToRaDec(jd, lon, lat)
|
||||
ra, dec = LoBoToRaDec(jde, lon, lat)
|
||||
return ra, dec, distance
|
||||
}
|
||||
|
||||
// OrbitApparentTopocentricEquatorial 返回光行时、章动与站心修正后的视赤道坐标，单位度/AU。
|
||||
func OrbitApparentTopocentricEquatorial(jd, observerLon, observerLat, observerHeight float64, elements OrbitElements) (ra, dec, distance float64) {
|
||||
geocentricRA, geocentricDec, geocentricDistance := OrbitApparentGeocentricEquatorial(jd, elements)
|
||||
func OrbitApparentTopocentricEquatorial(jde, observerLon, observerLat, observerHeight float64, elements OrbitElements) (ra, dec, distance float64) {
|
||||
geocentricRA, geocentricDec, geocentricDistance := OrbitApparentGeocentricEquatorial(jde, elements)
|
||||
if math.IsNaN(geocentricRA) {
|
||||
return math.NaN(), math.NaN(), math.NaN()
|
||||
}
|
||||
geocentricVector := orbitEquatorialVector(geocentricRA, geocentricDec, geocentricDistance)
|
||||
observerVector := orbitObserverEquatorialVectorOfDate(TD2UT(jd, false), observerLon, observerLat, observerHeight)
|
||||
observerVector := orbitObserverEquatorialVectorOfDate(TT2UTC(jde), observerLon, observerLat, observerHeight)
|
||||
topocentricVector := Vector3{
|
||||
geocentricVector[0] - observerVector[0],
|
||||
geocentricVector[1] - observerVector[1],
|
||||
@@ -159,16 +159,16 @@ func OrbitApparentTopocentricEquatorial(jd, observerLon, observerLat, observerHe
|
||||
return orbitVectorToEquatorial(topocentricVector)
|
||||
}
|
||||
|
||||
func earthHeliocentricVectorOfDate(jd float64) Vector3 {
|
||||
func earthHeliocentricVectorOfDate(jde float64) Vector3 {
|
||||
return eclipticCartesian(
|
||||
planet.WherePlanet(-1, 0, jd),
|
||||
planet.WherePlanet(-1, 1, jd),
|
||||
planet.WherePlanet(-1, 2, jd),
|
||||
planet.WherePlanet(-1, 0, jde),
|
||||
planet.WherePlanet(-1, 1, jde),
|
||||
planet.WherePlanet(-1, 2, jde),
|
||||
)
|
||||
}
|
||||
|
||||
func earthHeliocentricVectorJ2000(jd float64) Vector3 {
|
||||
return eclipticVectorAtReferenceEpoch(earthHeliocentricVectorOfDate(jd), jd, orbitReferenceJD)
|
||||
func earthHeliocentricVectorJ2000(jde float64) Vector3 {
|
||||
return eclipticVectorAtReferenceEpoch(earthHeliocentricVectorOfDate(jde), jde, orbitReferenceJD)
|
||||
}
|
||||
|
||||
func orbitVectorToEcliptic(vector Vector3) (lon, lat, distance float64) {
|
||||
@@ -207,7 +207,7 @@ func orbitEquatorialVector(ra, dec, distance float64) Vector3 {
|
||||
}
|
||||
|
||||
func orbitObserverEquatorialVectorOfDate(jdUT, observerLon, observerLat, observerHeight float64) Vector3 {
|
||||
localApparentSiderealLongitude := Limit360(ApparentSiderealTime(jdUT)*15 + observerLon)
|
||||
localApparentSiderealLongitude := Limit360(ApparentSiderealTime(UTC2UT1(jdUT))*15 + observerLon)
|
||||
observerScaleAU := Sin(0.0024427777777)
|
||||
rhoCosPhiPrime := pcosi(observerLat, observerHeight)
|
||||
rhoSinPhiPrime := psini(observerLat, observerHeight)
|
||||
|
||||
Reference in New Issue
Block a user