Kstars
skypoint.cpp
72 // qDebug() << Q_FUNC_INFO << "NOTE: This EquatorialToHorizontal overload (using dms pointers instead of CachingDms pointers) is deprecated and should be replaced with CachingDms prototype wherever speed is desirable!";
88 (*LST) - ra(); // Using CachingDms subtraction operator to find cos/sin of HourAngle without calling sincos()
305 ln_get_nutation (num->julianDay(), &nut); // FIXME: Is this cached, or is it a slow call? If it is slow, we should move it to KSNumbers
581// Note: This method is one of the major rate determining factors in how fast the map pans / zooms in or out
582void SkyPoint::updateCoords(const KSNumbers *num, bool /*includePlanets*/, const CachingDms *lat, const CachingDms *LST,
925 //*positionAngle = acos( tan(-ddelta)/tan( angDist.radians() ) ); // FIXME: Might fail for large ddelta / zero angDist
1083 (SkyPoint::altCrit + 90)); // Linear extrapolation from corrCrit at altCrit to 0 at -90 degrees
1111dms SkyPoint::findAltitude(const SkyPoint *p, const KStarsDateTime &dt, const GeoLocation *geo, const double hour)
1121SkyPoint SkyPoint::timeTransformed(const SkyPoint *p, const KStarsDateTime &dt, const GeoLocation *geo,
a dms subclass that caches its sine and cosine values every time the angle is changed.
Definition cachingdms.h:19
void setUsing_atan2(const double &y, const double &x)
Sets the angle using atan2()
Definition cachingdms.cpp:62
void setD(const double &x) override
Sets the angle in degrees supplied as a double.
Definition cachingdms.h:59
void setH(const double &x) override
Sets the angle in hours, supplied as a double.
Definition cachingdms.h:91
Contains all relevant information for specifying a location on Earth: City Name, State/Province name,...
Definition geolocation.h:28
There are several time-dependent values used in position calculations, that are not specific to an ob...
Definition ksnumbers.h:43
CachingDms earthPerihelionLongitude() const
Definition ksnumbers.h:74
Extension of QDateTime for KStars KStarsDateTime can represent the date/time as a Julian Day,...
Definition kstarsdatetime.h:36
SkyComposite is a kind of container class for SkyComponent objects.
Definition skycomposite.h:30
SkyObject * findByName(const QString &name, bool exact=true) override
Search the children of this SkyComposite for a SkyObject whose name matches the argument.
Definition skycomposite.cpp:65
double maxAlt(const dms &lat) const
Return the object's altitude at the upper culmination for the given latitude.
Definition skypoint.cpp:1136
void apparentCoord(long double jd0, long double jdf)
Computes the apparent coordinates for this SkyPoint for any epoch, accounting for the effects of prec...
Definition skypoint.cpp:700
static double refract(const double alt, bool conditional=true)
Apply refraction correction to altitude, depending on conditional.
Definition skypoint.cpp:1070
static const double altCrit
Critical height for atmospheric refraction corrections.
Definition skypoint.h:727
void aberrate(const KSNumbers *num, bool reverse=false)
Determine the effects of aberration for this SkyPoint.
Definition skypoint.cpp:454
void precessFromAnyEpoch(long double jd0, long double jdf)
General case of precession.
Definition skypoint.cpp:625
static double refractionCorr(double alt)
Calculate refraction correction.
Definition skypoint.cpp:1065
void setAltRefracted(dms alt_apparent)
Sets the apparent altitude, checking whether refraction corrections are enabled.
Definition skypoint.cpp:1055
double minAlt(const dms &lat) const
Return the object's altitude at the lower culmination for the given latitude.
Definition skypoint.cpp:1144
double vREarth(long double jd0)
Computes the velocity of any object projected on the direction of the source.
Definition skypoint.cpp:982
bool checkCircumpolar(const dms *gLat) const
Check if this point is circumpolar at the given geographic latitude.
Definition skypoint.cpp:1045
static dms findAltitude(const SkyPoint *p, const KStarsDateTime &dt, const GeoLocation *geo, const double hour=0)
Compute the altitude of a given skypoint hour hours from the given date/time.
Definition skypoint.cpp:1111
void precess(const KSNumbers *num)
Precess this SkyPoint's catalog coordinates to the epoch described by the given KSNumbers object.
Definition skypoint.cpp:223
static SkyPoint timeTransformed(const SkyPoint *p, const KStarsDateTime &dt, const GeoLocation *geo, const double hour=0)
returns a time-transformed SkyPoint.
Definition skypoint.cpp:1121
void findEcliptic(const CachingDms *Obliquity, dms &EcLong, dms &EcLat)
Determine the Ecliptic coordinates of the SkyPoint, given the Julian Date.
Definition skypoint.cpp:187
void addEterms(void)
Coordinates in the FK4 catalog include the effect of aberration due to the ellipticity of the orbit o...
Definition skypoint.cpp:883
double vGeoToVHelio(double vgeo, long double jd)
Computes the radial velocity of a source referred to the solar system barycenter from the velocity re...
Definition skypoint.cpp:1020
void nutate(const KSNumbers *num, const bool reverse=false)
Apply the effects of nutation to this SkyPoint.
Definition skypoint.cpp:275
dms angularDistanceTo(const SkyPoint *sp, double *const positionAngle=nullptr) const
Computes the angular distance between two SkyObjects.
Definition skypoint.cpp:899
double vTopoToVGeo(double vtopo, double vsite[3])
Computes the radial velocity of a source referred to the center of the Earth from the radial velocity...
Definition skypoint.cpp:1035
void B1950ToJ2000(void)
Exact precession from Besselian epoch 1950 to epoch J2000.
Definition skypoint.cpp:773
bool bendlight()
Correct for the effect of "bending" of light around the sun for positions near the sun.
Definition skypoint.cpp:425
void setFromEcliptic(const CachingDms *Obliquity, const dms &EcLong, const dms &EcLat)
Set the current (RA, Dec) coordinates of the SkyPoint, given pointers to its Ecliptic (Long,...
Definition skypoint.cpp:201
SkyPoint moveAway(const SkyPoint &from, double dist) const
Find the SkyPoint obtained by moving distance dist (arcseconds) away from the givenSkyPoint.
Definition skypoint.cpp:371
void EquatorialToHorizontal(const CachingDms *LST, const CachingDms *lat)
Determine the (Altitude, Azimuth) coordinates of the SkyPoint from its (RA, Dec) coordinates,...
Definition skypoint.cpp:77
double vRSite(double vsite[3])
Computes the velocity of any object (observer's site) projected on the direction of the source.
Definition skypoint.cpp:1025
static double unrefract(const double alt, bool conditional=true)
Remove refraction correction, depending on conditional.
Definition skypoint.cpp:1091
double vRSun(long double jd)
Computes the velocity of the Sun projected on the direction of the source.
Definition skypoint.cpp:934
virtual void updateCoords(const KSNumbers *num, bool includePlanets=true, const CachingDms *lat=nullptr, const CachingDms *LST=nullptr, bool forceRecompute=false)
Determine the current coordinates (RA, Dec) from the catalog coordinates (RA0, Dec0),...
Definition skypoint.cpp:582
void set(const dms &r, const dms &d)
Sets RA, Dec and RA0, Dec0 according to arguments.
Definition skypoint.cpp:63
double vTopocentric(double vgeo, double vsite[3])
Computes the radial velocity of a source referred to the observer site on the surface of the earth fr...
Definition skypoint.cpp:1040
double vHeliocentric(double vlsr, long double jd)
Computes the radial velocity of a source referred to the solar system barycenter from the radial velo...
Definition skypoint.cpp:972
void HorizontalToEquatorial(const dms *LST, const dms *lat)
Determine the (RA, Dec) coordinates of the SkyPoint from its (Altitude, Azimuth) coordinates,...
Definition skypoint.cpp:143
bool checkBendLight()
Check if this sky point is close enough to the sun for gravitational lensing to be significant.
Definition skypoint.cpp:399
SkyPoint Eterms(void)
Determine the E-terms of aberration In the past, the mean places of stars published in catalogs inclu...
Definition skypoint.cpp:868
void GalacticToEquatorial1950(const dms *galLong, const dms *galLat)
Computes equatorial coordinates referred to 1950 from galactic ones referred to epoch B1950.
Definition skypoint.cpp:754
double vGeocentric(double vhelio, long double jd)
Computes the radial velocity of a source referred to the center of the earth from the radial velocity...
Definition skypoint.cpp:1015
void J2000ToB1950(void)
Exact precession from epoch J2000 Besselian epoch 1950.
Definition skypoint.cpp:819
double vHelioToVlsr(double vhelio, long double jd)
Computes the radial velocity of a source referred to the Local Standard of Rest, also known as VLSR f...
Definition skypoint.cpp:977
void subtractEterms(void)
Coordinates in the FK4 catalog include the effect of aberration due to the ellipticity of the orbit o...
Definition skypoint.cpp:891
SkyPoint catalogueCoord(long double jdf)
Computes the J2000.0 catalogue coordinates for this SkyPoint using the epoch removing aberration,...
Definition skypoint.cpp:710
void Equatorial1950ToGalactic(dms &galLong, dms &galLat)
Computes galactic coordinates from equatorial coordinates referred to epoch 1950.
Definition skypoint.cpp:735
dms parallacticAngle(const CachingDms &LST, const CachingDms &lat)
Return the Parallactic Angle.
Definition skypoint.cpp:1152
SkyPoint deprecess(const KSNumbers *num, long double epoch=J2000)
Obtain a Skypoint with RA0 and Dec0 set from the RA, Dec of this skypoint.
Definition skypoint.cpp:257
void reduceToRange(enum dms::AngleRanges range)
Reduce this angle to the given range.
Definition dms.cpp:446
void SinCos(double &s, double &c) const
Compute Sine and Cosine of the angle simultaneously.
Definition dms.h:447
static constexpr double PI
PI is a const static member; it's public so that it can be used anywhere, as long as dms....
Definition dms.h:385
virtual void setRadians(const double &Rad)
Set angle according to the argument, in radians.
Definition dms.h:333
virtual void setD(const double &x)
Sets floating-point value of angle, in degrees.
Definition dms.h:179
static constexpr double DegToRad
DegToRad is a const static member equal to the number of radians in one degree (dms::PI/180....
Definition dms.h:390
QString i18n(const char *text, const TYPE &arg...)
KCALENDARCORE_EXPORT QDataStream & operator>>(QDataStream &in, const KCalendarCore::Alarm::Ptr &)
void beginStructure()
void endStructure()
QTextStream & dec(QTextStream &stream)
This file is part of the KDE documentation.
Documentation copyright © 1996-2024 The KDE developers.
Generated on Mon Nov 4 2024 16:38:44 by doxygen 1.12.0 written by Dimitri van Heesch, © 1997-2006
Documentation copyright © 1996-2024 The KDE developers.
Generated on Mon Nov 4 2024 16:38:44 by doxygen 1.12.0 written by Dimitri van Heesch, © 1997-2006
KDE's Doxygen guidelines are available online.