Comet Class Reference

#include <Comet.hpp>

Inheritance diagram for Comet:

Collaboration diagram for Comet:

Public Member Functions
	Comet (const QString &englishName, int flagLighting, double radius, double oblateness, Vec3f halocolor, float albedo, const QString &texMapName, posFuncType _coordFunc, void *userDataPtr, OsculatingFunctType *osculatingFunc, bool closeOrbit, bool hidden, const QString &pTypeStr, float dustTailWidthFact=1.5f, float dustTailLengthFact=0.4f, float dustTailBrightnessFact=1.5f)
virtual QString	getInfoString (const StelCore *core, const InfoStringGroup &flags) const
	Get a string with data about the Comet. More...
virtual QVariantMap	getInfoMap (const StelCore *core) const
	In addition to Planet::getInfoMap(), Comets provides estimates for. More...
virtual float	getVMagnitude (const StelCore *core) const
virtual void	translateName (const StelTranslator &trans)
	sets the nameI18 property with the appropriate translation. More...
virtual QString	getEnglishName (void) const
	Return object's name in english. More...
virtual QString	getNameI18n (void) const
	Return translated object's name. More...
void	setAbsoluteMagnitudeAndSlope (const double magnitude, const double slope)
	sets absolute magnitude and slope parameter. More...
void	setSemiMajorAxis (const double value)
	set value for semi-major axis in AU More...
virtual double	getSiderealPeriod () const
	get sidereal period for comet, days, or returns 0 if not possible (paraboloid, hyperboloid orbit) More...
virtual void	draw (StelCore *core, float maxMagLabels, const QFont &planetNameFont)
	re-implementation of Planet's draw() More...
virtual void	update (int deltaTime)
Public Member Functions inherited from Planet
	Planet (const QString &englishName, int flagLighting, double radius, double oblateness, Vec3f halocolor, float albedo, const QString &texMapName, const QString &normalMapName, posFuncType _coordFunc, void *userDataPtr, OsculatingFunctType *osculatingFunc, bool closeOrbit, bool hidden, bool hasAtmosphere, bool hasHalo, const QString &pTypeStr)
virtual double	getCloseViewFov (const StelCore *core) const
	Return the best FOV in degree to use for a close view of the object. More...
virtual double	getSatellitesFov (const StelCore *core) const
	Return the best FOV in degree to use for a global view of the object satellite system (if there are satellites) More...
virtual double	getParentSatellitesFov (const StelCore *core) const
virtual float	getSelectPriority (const StelCore *core) const
	Return a priority value which is used to discriminate objects by priority As for magnitudes, the lower is the higher priority. More...
virtual Vec3f	getInfoColor (void) const
	Get a color used to display info about the object. More...
virtual QString	getType (void) const
	Return object's type. It should be the name of the class. More...
virtual Vec3d	getJ2000EquatorialPos (const StelCore *core) const
	Get observer-centered equatorial coordinates at equinox J2000. More...
virtual double	getAngularSize (const StelCore *core) const
	Get angular semidiameter, degrees. If planet display is artificially enlarged (e.g. Moon upscale), value will also be increased. More...
virtual bool	hasAtmosphere (void)
virtual bool	hasHalo (void)
double	getRadius (void) const
	Get the radius of the planet in AU. More...
double	getOneMinusOblateness (void) const
	Get the value (1-f) for oblateness f. More...
double	getSiderealDay (void) const
	Get duration of sidereal day. More...
double	getMeanSolarDay (void) const
	Get duration of mean solar day. More...
double	getAlbedo (void) const
	Get albedo. More...
const QString &	getTextMapName () const
const QString	getPlanetTypeString () const
PlanetType	getPlanetType () const
void	setNativeName (QString planet)
float	getAbsoluteMagnitude () const
	Return the absolute magnitude (read from file ssystem.ini) More...
float	getMeanOppositionMagnitude () const
	Return the mean opposition magnitude, defined as V(1,0)+5log10(a(a-1)) A return value of 100 signals invalid result. More...
ApparentMagnitudeAlgorithm	getApparentMagnitudeAlgorithm () const
const QString	getApparentMagnitudeAlgorithmString () const
void	setApparentMagnitudeAlgorithm (QString algorithm)
double	getSiderealTime (double JD, double JDE) const
	Compute the z rotation to use from equatorial to geographic coordinates. More...
Mat4d	getRotEquatorialToVsop87 (void) const
void	setRotEquatorialToVsop87 (const Mat4d &m)
const RotationElements &	getRotationElements (void) const
void	setRotationElements (float _period, float _offset, double _epoch, float _obliquity, float _ascendingNode, float _precessionRate, double _siderealPeriod)
double	getRotAscendingnode (void) const
double	getRotObliquity (double JDE) const
void	computePositionWithoutOrbits (const double dateJDE)
	Compute the position in the parent Planet coordinate system. More...
void	computePosition (const double dateJDE)
void	computeTransMatrix (double JD, double JDE)
	Compute the transformation matrix from the local Planet coordinate to the parent Planet coordinate. More...
double	getPhaseAngle (const Vec3d &obsPos) const
	Get the phase angle (rad) for an observer at pos obsPos in heliocentric coordinates (in AU) More...
double	getElongation (const Vec3d &obsPos) const
	Get the elongation angle (rad) for an observer at pos obsPos in heliocentric coordinates (in AU) More...
double	getSpheroidAngularSize (const StelCore *core) const
	Get the angular size of the spheroid of the planet (i.e. without the rings) More...
float	getPhase (const Vec3d &obsPos) const
	Get the planet phase for an observer at pos obsPos in heliocentric coordinates (in AU) More...
Vec3d	getEclipticPos () const
	Get the Planet position in the parent Planet ecliptic coordinate in AU. More...
Vec3d	getHeliocentricEclipticPos () const
Vec3d	getHeliocentricPos (Vec3d) const
void	setHeliocentricEclipticPos (const Vec3d &pos)
double	computeDistance (const Vec3d &obsHelioPos)
double	getDistance (void) const
void	setRings (Ring *r)
void	setSphereScale (float s)
float	getSphereScale (void) const
const QSharedPointer< Planet >	getParent (void) const
void	setFlagHints (bool b)
bool	getFlagHints (void) const
void	setFlagLabels (bool b)
bool	getFlagLabels (void) const
void	setFlagNativeName (bool b)
bool	getFlagNativeName (void)
void	setFlagTranslatedName (bool b)
bool	getFlagTranslatedName (void)
void	setFlagOrbits (bool b)
bool	getFlagOrbits (void) const
void	drawOrbit (const StelCore *)
QVector< const Planet * >	getCandidatesForShadow () const
	Return the list of planets which project some shadow on this planet. More...
Public Member Functions inherited from StelObject
virtual SphericalRegionP	getRegion () const
	Default implementation of the getRegion method. More...
virtual Vec3d	getPointInRegion () const
	Default implementation of the getPointInRegion method. More...
Vec3d	getEquinoxEquatorialPos (const StelCore *core) const
	Get observer-centered equatorial coordinate at the current equinox The frame has its Z axis at the planet's current rotation axis At time 2000-01-01 this frame is almost the same as J2000, but ONLY if the observer is on earth. More...
Vec3d	getEquinoxEquatorialPosApparent (const StelCore *core) const
	Like getEquinoxEquatorialPos(core), but always adds refraction correction to the position. More...
Vec3d	getEquinoxEquatorialPosAuto (const StelCore *core) const
	Like getEquinoxEquatorialPos(core), but adds refraction correction to the position if atmosphere is active. More...
Vec3d	getGalacticPos (const StelCore *core) const
	Get observer-centered galactic coordinates. More...
Vec3d	getSupergalacticPos (const StelCore *core) const
	Get observer-centered supergalactic coordinates. More...
Vec3d	getSiderealPosGeometric (const StelCore *core) const
	Get observer-centered hour angle + declination (at current equinox) It is the geometric position, i.e. More...
Vec3d	getSiderealPosApparent (const StelCore *core) const
	Get observer-centered hour angle + declination (at current equinox) It is the apparent position, i.e. More...
Vec3d	getAltAzPosGeometric (const StelCore *core) const
	Get observer-centered alt/az position It is the geometric position, i.e. More...
Vec3d	getAltAzPosApparent (const StelCore *core) const
	Get observer-centered alt/az position It is the apparent position, i.e. More...
Vec3d	getAltAzPosAuto (const StelCore *core) const
	Get observer-centered alt/az position It is the automatic position, i.e. More...
float	getVMagnitudeWithExtinction (const StelCore *core) const
	Return object's apparent V magnitude as seen from observer including extinction. More...

Friends
class	SolarSystem

Additional Inherited Members
Public Types inherited from Planet
enum	PlanetType {   isStar, isPlanet, isMoon, isAsteroid,   isPlutino, isComet, isDwarfPlanet, isCubewano,   isSDO, isOCO, isSednoid, isUNDEFINED }
	numeric typecodes for the type descriptions in ssystem.ini More...
enum	PlanetOrbitColorStyle { ocsOneColor, ocsGroups, ocsMajorPlanets }
enum	ApparentMagnitudeAlgorithm {   Mueller_1893, Astr_Alm_1984, Expl_Sup_1992, Expl_Sup_2013,   UndefinedAlgorithm, Generic }
Public Types inherited from StelObject
enum	InfoStringGroupFlags {   Name = 0x00000001, CatalogNumber = 0x00000002, Magnitude = 0x00000004, RaDecJ2000 = 0x00000008,   RaDecOfDate = 0x00000010, AltAzi = 0x00000020, Distance = 0x00000040, Size = 0x00000080,   Extra = 0x00000100, HourAngle = 0x00000200, AbsoluteMagnitude = 0x00000400, GalacticCoord = 0x00000800,   SupergalacticCoord = 0x00001000, ObjectType = 0x00002000, EclipticCoordJ2000 = 0x00004000, EclipticCoordOfDate = 0x00008000,   IAUConstellation = 0x00010000, SiderealTime = 0x00020000, NoFont = 0x00040000, PlainText = 0x00080000 }
	Used as named bitfield flags as specifiers to filter results of getInfoString. More...
Static Public Member Functions inherited from Planet
static void	init ()
	Initializes static vars. Must be called before creating first planet. More...
static void	setLabelColor (const Vec3f &lc)
static const Vec3f &	getLabelColor (void)
static void	setOrbitColor (const Vec3f &oc)
static const Vec3f &	getOrbitColor ()
static void	setMajorPlanetOrbitColor (const Vec3f &oc)
static const Vec3f &	getMajorPlanetOrbitColor ()
static void	setMoonOrbitColor (const Vec3f &oc)
static const Vec3f &	getMoonOrbitColor ()
static void	setMinorPlanetOrbitColor (const Vec3f &oc)
static const Vec3f &	getMinorPlanetOrbitColor ()
static void	setDwarfPlanetOrbitColor (const Vec3f &oc)
static const Vec3f &	getDwarfPlanetOrbitColor ()
static void	setCubewanoOrbitColor (const Vec3f &oc)
static const Vec3f &	getCubewanoOrbitColor ()
static void	setPlutinoOrbitColor (const Vec3f &oc)
static const Vec3f &	getPlutinoOrbitColor ()
static void	setScatteredDiscObjectOrbitColor (const Vec3f &oc)
static const Vec3f &	getScatteredDiscObjectOrbitColor ()
static void	setOortCloudObjectOrbitColor (const Vec3f &oc)
static const Vec3f &	getOortCloudObjectOrbitColor ()
static void	setCometOrbitColor (const Vec3f &oc)
static const Vec3f &	getCometOrbitColor ()
static void	setSednoidOrbitColor (const Vec3f &oc)
static const Vec3f &	getSednoidOrbitColor ()
static void	setMercuryOrbitColor (const Vec3f &oc)
static const Vec3f &	getMercuryOrbitColor ()
static void	setVenusOrbitColor (const Vec3f &oc)
static const Vec3f &	getVenusOrbitColor ()
static void	setEarthOrbitColor (const Vec3f &oc)
static const Vec3f &	getEarthOrbitColor ()
static void	setMarsOrbitColor (const Vec3f &oc)
static const Vec3f &	getMarsOrbitColor ()
static void	setJupiterOrbitColor (const Vec3f &oc)
static const Vec3f &	getJupiterOrbitColor ()
static void	setSaturnOrbitColor (const Vec3f &oc)
static const Vec3f &	getSaturnOrbitColor ()
static void	setUranusOrbitColor (const Vec3f &oc)
static const Vec3f &	getUranusOrbitColor ()
static void	setNeptuneOrbitColor (const Vec3f &oc)
static const Vec3f &	getNeptuneOrbitColor ()
Public Attributes inherited from Planet
bool	flagNativeName
bool	flagTranslatedName
LinearFader	orbitFader
Vec3d	orbit [ORBIT_SEGMENTS+1]
Vec3d	orbitP [ORBIT_SEGMENTS+1]
double	lastOrbitJDE
double	deltaJDE
double	deltaOrbitJDE
bool	orbitCached
bool	closeOrbit
Static Public Attributes inherited from Planet
static Vec3f	orbitColor
static Vec3f	orbitMajorPlanetsColor
static Vec3f	orbitMoonsColor
static Vec3f	orbitMinorPlanetsColor
static Vec3f	orbitDwarfPlanetsColor
static Vec3f	orbitCubewanosColor
static Vec3f	orbitPlutinosColor
static Vec3f	orbitScatteredDiscObjectsColor
static Vec3f	orbitOortCloudObjectsColor
static Vec3f	orbitCometsColor
static Vec3f	orbitSednoidsColor
static Vec3f	orbitMercuryColor
static Vec3f	orbitVenusColor
static Vec3f	orbitEarthColor
static Vec3f	orbitMarsColor
static Vec3f	orbitJupiterColor
static Vec3f	orbitSaturnColor
static Vec3f	orbitUranusColor
static Vec3f	orbitNeptuneColor
static bool	permanentDrawingOrbits
static PlanetOrbitColorStyle	orbitColorStyle
Static Public Attributes inherited from StelObject
static const InfoStringGroupFlags	AllInfo
	A pre-defined set of specifiers for the getInfoString flags argument to getInfoString. More...
static const InfoStringGroupFlags	ShortInfo = (InfoStringGroupFlags)(Name|CatalogNumber|Magnitude|RaDecJ2000)
	A pre-defined set of specifiers for the getInfoString flags argument to getInfoString. More...
Protected Member Functions inherited from Planet
void	computeModelMatrix (Mat4d &result) const
Vec3f	getCurrentOrbitColor ()
QString	getSkyLabel (const StelCore *core) const
void	draw3dModel (StelCore *core, StelProjector::ModelViewTranformP transfo, float screenSz, bool drawOnlyRing=false)
void	drawSphere (StelPainter *painter, float screenSz, bool drawOnlyRing=false)
void	drawHints (const StelCore *core, const QFont &planetNameFont)
Protected Member Functions inherited from StelObject
QString	getPositionInfoString (const StelCore *core, const InfoStringGroup &flags) const
	Format the positional info string contain J2000/of date/altaz/hour angle positions for the object. More...
void	postProcessInfoString (QString &str, const InfoStringGroup &flags) const
	Apply post processing on the info string. More...
Static Protected Member Functions inherited from Planet
static void	initShader ()
static void	deinitShader ()
Protected Attributes inherited from Planet
QString	englishName
QString	nameI18
QString	nativeName
QString	texMapName
QString	normalMapName
int	flagLighting
RotationElements	re
double	radius
double	oneMinusOblateness
Vec3d	eclipticPos
Vec3d	screenPos
Vec3d	previousScreenPos
Vec3f	haloColor
float	albedo
float	absoluteMagnitude
Mat4d	rotLocalToParent
float	axisRotation
StelTextureSP	texMap
StelTextureSP	normalMap
Ring *	rings
double	distance
float	sphereScale
double	lastJDE
posFuncType	coordFunc
void *	userDataPtr
OsculatingFunctType *const	osculatingFunc
QSharedPointer< Planet >	parent
QList< QSharedPointer< Planet > >	satellites
LinearFader	hintFader
LinearFader	labelsFader
bool	flagLabels
bool	hidden
bool	atmosphere
bool	halo
PlanetType	pType
ApparentMagnitudeAlgorithm	vMagAlgorithm
Static Protected Attributes inherited from Planet
static StelTextureSP	texEarthShadow
static Vec3f	labelColor
static StelTextureSP	hintCircleTex
static QMap< PlanetType, QString >	pTypeMap
static QMap< ApparentMagnitudeAlgorithm, QString >	vMagAlgorithmMap
static bool	flagCustomGrsSettings
static double	customGrsJD
static int	customGrsLongitude
static double	customGrsDrift
static PlanetShaderVars	planetShaderVars
static QOpenGLShaderProgram *	planetShaderProgram
static RingPlanetShaderVars	ringPlanetShaderVars
static QOpenGLShaderProgram *	ringPlanetShaderProgram
static MoonShaderVars	moonShaderVars
static QOpenGLShaderProgram *	moonShaderProgram

Detailed Description

Author

Bogdan Marinov, Georg Zotti (orbit computation enhancements, tails)

Some of the code in this class is re-used from the parent Planet class.

Definition at line 38 of file Comet.hpp.

Member Function Documentation

virtual void Comet::draw ( StelCore *  core, float  maxMagLabels, const QFont &  planetNameFont  )

virtual

re-implementation of Planet's draw()

Reimplemented from Planet.

virtual QString Comet::getEnglishName ( void  ) const

inlinevirtual

Return object's name in english.

Reimplemented from Planet.

Definition at line 89 of file Comet.hpp.

virtual QVariantMap Comet::getInfoMap ( const StelCore *  core ) const

virtual

In addition to Planet::getInfoMap(), Comets provides estimates for.

• tail-length-km
• coma-diameter-km using the formula from Guide found by the GSoC2012 initiative at http://www.projectpluto.com/update7b.htm#comet_tail_formula

Reimplemented from Planet.

virtual QString Comet::getInfoString ( const StelCore *  core, const InfoStringGroup &  flags  ) const

virtual

Get a string with data about the Comet.

Comets support the following InfoStringGroup flags:

• Name
• Magnitude
• RaDec
• AltAzi
• Distance
• PlainText

  Parameters

  core	the StelCore object
  flags	a set of InfoStringGroup items to include in the return value.

  Returns

  a QString containing an HMTL encoded description of the Comet.

Reimplemented from Planet.

virtual QString Comet::getNameI18n ( void  ) const

inlinevirtual

Return translated object's name.

Reimplemented from Planet.

Definition at line 90 of file Comet.hpp.

virtual double Comet::getSiderealPeriod ( ) const

virtual

get sidereal period for comet, days, or returns 0 if not possible (paraboloid, hyperboloid orbit)

Reimplemented from Planet.

virtual float Comet::getVMagnitude ( const StelCore *  core ) const

virtual

Reimplemented from Planet.

void Comet::setAbsoluteMagnitudeAndSlope	(	const double	magnitude,
		const double	slope
	)

sets absolute magnitude and slope parameter.

These are the parameters in the IAU's two-parameter magnitude system for comets. They are used to calculate the apparent magnitude at different distances from the Sun. They are not used in the same way as the same parameters in MinorPlanet.

void Comet::setSemiMajorAxis

(

const double

value

)

set value for semi-major axis in AU

virtual void Comet::translateName ( const StelTranslator &  trans )

virtual

sets the nameI18 property with the appropriate translation.

Function overriden to handle the problem with name conflicts.

Reimplemented from Planet.

---

The documentation for this class was generated from the following file:

• /home/aw/devel/stellarium/0.15/src/core/modules/Comet.hpp