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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/solar_eclipse_path_geometry.go
+34 -34
View File
@@ -210,9 +210,9 @@ func (solver solarEclipseSolver) appendRefinedCentralPathSegment(
return solver.appendRefinedCentralPathSegment(points, mid, end, targetSpacingKM, depth+1)
}
func (solver solarEclipseSolver) centralPathPointAt(jd float64) (SolarEclipsePathPoint, bool) {
moon := solver.besselMoonAt(jd)
axis := solver.besselAxisAt(jd)
func (solver solarEclipseSolver) centralPathPointAt(jde float64) (SolarEclipsePathPoint, bool) {
moon := solver.besselMoonAt(jde)
axis := solver.besselAxisAt(jde)
intersection := solarEclipseLineEar2(
moon[0],
moon[1],
@@ -229,7 +229,7 @@ func (solver solarEclipseSolver) centralPathPointAt(jd float64) (SolarEclipsePat
}
longitude, latitude := solarEclipseIntersectionGeodetic(intersection, axis)
sunAltitudeRad := solarEclipseSunAltitudeAtGreatest(jd, longitude, latitude, axis.gst)
sunAltitudeRad := solarEclipseSunAltitudeAtGreatest(jde, longitude, latitude, axis.gst)
radii := solver.shadowRadiiAt(moon[2] - intersection.r2)
widthKM := 0.0
@@ -238,7 +238,7 @@ func (solver solarEclipseSolver) centralPathPointAt(jd float64) (SolarEclipsePat
}
return SolarEclipsePathPoint{
JDE: jd,
JDE: jde,
Longitude: longitude,
Latitude: latitude,
SunAltitude: sunAltitudeRad / rad,
@@ -456,14 +456,14 @@ func (solver solarEclipseSolver) besselVelocityXYAt(jd float64) (float64, float6
return vx, vy, math.Hypot(vx, vy)
}
func solarEclipsePathPointFromBesselXY(jd, x, y float64, axis solarEclipseAxis) (SolarEclipsePathPoint, bool) {
func solarEclipsePathPointFromBesselXY(jde, x, y float64, axis solarEclipseAxis) (SolarEclipsePathPoint, bool) {
longitude, latitude, ok := solarEclipseBesselXYToGeodetic(x, y, axis, true)
if !ok {
return SolarEclipsePathPoint{}, false
}
sunAltitudeRad := solarEclipseSunAltitudeAtGreatest(jd, longitude, latitude, axis.gst)
sunAltitudeRad := solarEclipseSunAltitudeAtGreatest(jde, longitude, latitude, axis.gst)
return SolarEclipsePathPoint{
JDE: jd,
JDE: jde,
Longitude: longitude,
Latitude: latitude,
SunAltitude: sunAltitudeRad / rad,
@@ -534,14 +534,14 @@ func (solver solarEclipseSolver) shadowContactRoot(
}
func (solver solarEclipseSolver) shadowContactResidual(
jd float64,
jde float64,
kind solarEclipseShadowKind,
internal bool,
) (float64, bool) {
if kind == solarEclipseCentralShadow && solver.exactCentralContact && !internal {
return solver.shadowContactResidualExact(jd)
return solver.shadowContactResidualExact(jde)
}
moon := solver.besselMoonAt(jd)
moon := solver.besselMoonAt(jde)
distanceSquared := moon[0]*moon[0] + moon[1]*moon[1]
if distanceSquared <= 0 {
return 0, false
@@ -561,18 +561,18 @@ func (solver solarEclipseSolver) shadowContactResidual(
return math.Sqrt(distanceSquared) - limit, true
}
func (solver solarEclipseSolver) shadowContactResidualExact(jd float64) (float64, bool) {
_, value, ok := solver.shadowContactMaximum(jd)
func (solver solarEclipseSolver) shadowContactResidualExact(jde float64) (float64, bool) {
_, value, ok := solver.shadowContactMaximum(jde)
return -value, ok
}
func (solver solarEclipseSolver) shadowContactMaximum(jd float64) (float64, float64, bool) {
func (solver solarEclipseSolver) shadowContactMaximum(jde float64) (float64, float64, bool) {
const samples = 32
step := 2 * math.Pi / samples
bestIndex := -1
bestValue := math.Inf(-1)
for index := 0; index < samples; index++ {
value, ok := solver.shadowBoundaryDiscriminant(jd, float64(index)*step)
value, ok := solver.shadowBoundaryDiscriminant(jde, float64(index)*step)
if !ok {
continue
}
@@ -586,7 +586,7 @@ func (solver solarEclipseSolver) shadowContactMaximum(jd float64) (float64, floa
left := float64(bestIndex)*step - step
right := float64(bestIndex)*step + step
valueAt := func(angle float64) float64 {
value, ok := solver.shadowBoundaryDiscriminant(jd, angle)
value, ok := solver.shadowBoundaryDiscriminant(jde, angle)
if !ok {
return math.Inf(-1)
}
@@ -619,8 +619,8 @@ func (solver solarEclipseSolver) shadowContactMaximum(jd float64) (float64, floa
return bestAngle, bestValue, true
}
func (solver solarEclipseSolver) shadowBoundaryDiscriminant(jd, angle float64) (float64, bool) {
moon, axis, _ := solver.besselGeometryAt(jd)
func (solver solarEclipseSolver) shadowBoundaryDiscriminant(jde, angle float64) (float64, bool) {
moon, axis, _ := solver.besselGeometryAt(jde)
radius := solver.shadowRadiusAt(moon[2], solarEclipseCentralShadow)
if radius <= 0 {
return 0, false
@@ -674,37 +674,37 @@ func solarEclipseLineEllipsoidDiscriminant(
}
func (solver solarEclipseSolver) shadowContactPointAt(
jd float64,
jde float64,
kind solarEclipseShadowKind,
internal bool,
) (SolarEclipsePathPoint, bool) {
if kind == solarEclipseCentralShadow && solver.exactCentralContact && !internal {
angle, _, ok := solver.shadowContactMaximum(jd)
angle, _, ok := solver.shadowContactMaximum(jde)
if !ok {
return SolarEclipsePathPoint{}, false
}
if point, pointOK := solver.centralShadowPointAt(jd, angle); pointOK {
if point, pointOK := solver.centralShadowPointAt(jde, angle); pointOK {
return point, true
}
for _, offset := range []float64{-1e-8, 1e-8, -1e-7, 1e-7} {
offsetJDE := jd + offset
offsetJDE := jde + offset
offsetAngle, _, maximumOK := solver.shadowContactMaximum(offsetJDE)
if !maximumOK {
continue
}
if point, pointOK := solver.centralShadowPointAt(offsetJDE, offsetAngle); pointOK {
point.JDE = jd
point.JDE = jde
return point, true
}
}
return SolarEclipsePathPoint{}, false
}
moon := solver.besselMoonAt(jd)
moon := solver.besselMoonAt(jde)
distance := math.Hypot(moon[0], moon[1])
if distance <= 0 || solver.shadowRadiusAt(moon[2], kind) <= 0 {
return SolarEclipsePathPoint{}, false
}
axis := solver.besselAxisAt(jd)
axis := solver.besselAxisAt(jde)
unitX, unitY := moon[0]/distance, moon[1]/distance
insideScale, outsideScale := 0.0, 1.1
var intersection solarEclipseLineIntersection
@@ -726,9 +726,9 @@ func (solver solarEclipseSolver) shadowContactPointAt(
return SolarEclipsePathPoint{}, false
}
longitude, latitude := solarEclipseIntersectionGeodetic(intersection, axis)
sunAltitudeRad := solarEclipseSunAltitudeAtGreatest(jd, longitude, latitude, axis.gst)
sunAltitudeRad := solarEclipseSunAltitudeAtGreatest(jde, longitude, latitude, axis.gst)
return SolarEclipsePathPoint{
JDE: jd,
JDE: jde,
Longitude: longitude,
Latitude: latitude,
SunAltitude: sunAltitudeRad / rad,
@@ -743,27 +743,27 @@ func (solver solarEclipseSolver) shadowRadiusAt(moonBesselZ float64, kind solarE
return radii.penumbraRadius
}
func (solver solarEclipseSolver) partialFootprintAt(jd float64, boundaryPoints int) SolarEclipsePartialFootprint {
return solver.shadowFootprintAt(jd, boundaryPoints, solarEclipsePenumbralShadow)
func (solver solarEclipseSolver) partialFootprintAt(jde float64, boundaryPoints int) SolarEclipsePartialFootprint {
return solver.shadowFootprintAt(jde, boundaryPoints, solarEclipsePenumbralShadow)
}
func (solver solarEclipseSolver) shadowFootprintAt(
jd float64,
jde float64,
boundaryPoints int,
kind solarEclipseShadowKind,
) SolarEclipsePartialFootprint {
return solver.shadowFootprintAtWithSpacing(jd, boundaryPoints, kind, 0)
return solver.shadowFootprintAtWithSpacing(jde, boundaryPoints, kind, 0)
}
func (solver solarEclipseSolver) shadowFootprintAtWithSpacing(
jd float64,
jde float64,
boundaryPoints int,
kind solarEclipseShadowKind,
targetSpacingKM float64,
) SolarEclipsePartialFootprint {
moon, axis, sun := solver.besselGeometryAt(jd)
moon, axis, sun := solver.besselGeometryAt(jde)
return solver.shadowFootprintAtWithGeometry(
jd, moon, axis, sun, boundaryPoints, kind, targetSpacingKM,
jde, moon, axis, sun, boundaryPoints, kind, targetSpacingKM,
)
}