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coordinate frames transformation

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This commit is contained in:
nuknal
2024-08-15 14:01:05 +08:00
parent 7c1240f2db
commit c2480a828b
12 changed files with 19640 additions and 16 deletions
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4
pkg/calculator/j2000.go
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@@ -9,11 +9,11 @@ import (
func J2000ToWGS84(j2000X, j2000Y, j2000Z float64, utc time.Time) (float64, float64, float64) {
itrsX, itrsY, itrsZ := ECItoECEF(j2000X, j2000Y, j2000Z, utc)
// Convert ITRS to geodetic coordinates (WGS84)
latitude, longitude, height := ECEFToGeodetic(itrsX, itrsY, itrsZ)
latitude, longitude, height := ECEFGeocentricToGeodetic(itrsX, itrsY, itrsZ)
return latitude, longitude, height
}
func ECItoECEF(j2000X, j2000Y, j2000Z float64, utc time.Time) (float64, float64, float64) {
func _ECItoECEF(j2000X, j2000Y, j2000Z float64, utc time.Time) (float64, float64, float64) {
julianDate := UTCToJulianDate(utc)
gast := CalculateGAST(julianDate, utc)