StarMgr Class Reference

Stores the star catalogue data. More...

#include <StarMgr.hpp>

List of all members.

Public Slots
void	setLabelColor (const Vec3f &c)
	Set the color used to label bright stars.
Vec3f	getLabelColor (void) const
	Get the current color used to label bright stars.
void	setFlagStars (bool b)
	Set display flag for Stars.
bool	getFlagStars (void) const
	Get display flag for Stars.
void	setFlagLabels (bool b)
	Set display flag for Star names (labels).
bool	getFlagLabels (void) const
	Get display flag for Star names (labels).
void	setLabelsAmount (float a)
	Set the amount of star labels.
float	getLabelsAmount (void) const
	Get the amount of star labels.
void	setFontSize (double newFontSize)
	Define font size to use for star names display.
static void	setFlagSciNames (bool f)
	Show scientific or catalog names on stars without common names.
static bool	getFlagSciNames (void)
Public Member Functions
virtual void	init ()
	Initialize the StarMgr.
virtual void	draw (StelCore *core)
	Draw the stars and the star selection indicator if necessary.
virtual void	update (double deltaTime)
	Update any time-dependent features.
virtual double	getCallOrder (StelModuleActionName actionName) const
	Used to determine the order in which the various StelModules are drawn.
virtual QList< StelObjectP >	searchAround (const Vec3d &v, double limitFov, const StelCore *core) const
	Return a list containing the stars located inside the limFov circle around position v.
virtual StelObjectP	searchByNameI18n (const QString &nameI18n) const
	Return the matching Stars object's pointer if exists or NULL.
virtual StelObjectP	searchByName (const QString &name) const
	Return the matching star if exists or NULL.
virtual QStringList	listMatchingObjectsI18n (const QString &objPrefix, int maxNbItem=5) const
	Find and return the list of at most maxNbItem objects auto-completing the passed object I18n name.
StelObjectP	searchHP (int hip) const
	Search by Hipparcos catalogue number.
QVariantList	getCatalogsDescription () const
bool	checkAndLoadCatalog (QVariantMap m)
	Try to load the given catalog, even if it is marched as unchecked.
Static Public Member Functions
static QString	getCommonName (int hip)
	Get the (translated) common name for a star with a specified Hipparcos catalogue number.
static QString	getSciName (int hip)
	Get the (translated) scientific name for a star with a specified Hipparcos catalogue number.
static QString	convertToSpectralType (int index)
static QString	convertToComponentIds (int index)

---

Detailed Description

Stores the star catalogue data.

Used to render the stars themselves, as well as determine the color table and render the labels of those stars with names for a given SkyCulture.

The celestial sphere is split into zones, which correspond to the triangular faces of a geodesic sphere. The number of zones (faces) depends on the level of sub-division of this sphere. The lowest level, 0, is an icosahedron (20 faces), subsequent levels, L, of sub-division give the number of zones, n as:

n=20 x 4^L

Stellarium uses levels 0 to 7 in the existing star catalogues. Star Data Records contain the position of a star as an offset from the central position of the zone in which that star is located, thus it is necessary to determine the vector from the observer to the centre of a zone, and add the star's offsets to find the absolute position of the star on the celestial sphere.

This position for a star is expressed as a 3-dimensional vector which points from the observer (at the centre of the geodesic sphere) to the position of the star as observed on the celestial sphere.

---

Member Function Documentation

bool StarMgr::checkAndLoadCatalog

(

QVariantMap

m

)

Try to load the given catalog, even if it is marched as unchecked.

Mark it as checked if checksum is correct.

Returns:

false in case of failure.

virtual void StarMgr::draw

(

StelCore *

core

)

[virtual]

Draw the stars and the star selection indicator if necessary.

Reimplemented from StelModule.

virtual double StarMgr::getCallOrder

(

StelModuleActionName

actionName

)

const [virtual]

Used to determine the order in which the various StelModules are drawn.

Reimplemented from StelModule.

static QString StarMgr::getCommonName

(

int

hip

)

[static]

Get the (translated) common name for a star with a specified Hipparcos catalogue number.

bool StarMgr::getFlagLabels

(

void

)

const [inline, slot]

Get display flag for Star names (labels).

bool StarMgr::getFlagStars

(

void

)

const [inline, slot]

Get display flag for Stars.

Vec3f StarMgr::getLabelColor

(

void

)

const [inline, slot]

Get the current color used to label bright stars.

float StarMgr::getLabelsAmount

(

void

)

const [inline, slot]

Get the amount of star labels.

The real amount is also proportional with FOV.

Returns:

the amount between 0 and 10. 0 is no labels, 10 is maximum of labels

static QString StarMgr::getSciName

(

int

hip

)

[static]

Get the (translated) scientific name for a star with a specified Hipparcos catalogue number.

virtual void StarMgr::init

(

)

[virtual]

Initialize the StarMgr.

• Loads the star catalogue data into memory
• Sets up the star color table
• Loads the star texture
• Loads the star font (for labels on named stars)
• Loads the texture of the sar selection indicator
• Lets various display flags from the ini parser object

Implements StelModule.

virtual QStringList StarMgr::listMatchingObjectsI18n	(	const QString &	objPrefix,
		int	maxNbItem = 5
	)			const [virtual]

Find and return the list of at most maxNbItem objects auto-completing the passed object I18n name.

Parameters:

	objPrefix	the case insensitive first letters of the searched object
	maxNbItem	the maximum number of returned object names

Returns:

a list of matching object name by order of relevance, or an empty list if nothing match

Implements StelObjectModule.

virtual QList<StelObjectP > StarMgr::searchAround	(	const Vec3d &	v,
		double	limitFov,
		const StelCore *	core
	)			const [virtual]

Return a list containing the stars located inside the limFov circle around position v.

Implements StelObjectModule.

virtual StelObjectP StarMgr::searchByName

(

const QString &

name

)

const [virtual]

Return the matching star if exists or NULL.

Parameters:

name

The case in-sensistive standard program planet name

Implements StelObjectModule.

virtual StelObjectP StarMgr::searchByNameI18n

(

const QString &

nameI18n

)

const [virtual]

Return the matching Stars object's pointer if exists or NULL.

Parameters:

nameI18n

The case in-sensistive star common name or HP catalog name (format can be HP1234 or HP 1234 or HIP 1234) or sci name

Implements StelObjectModule.

StelObjectP StarMgr::searchHP

(

int

hip

)

const

Search by Hipparcos catalogue number.

Parameters:

hip

the Hipparcos catalogue number of the star which is required.

Returns:

the requested StelObjectP or an empty objecy if the requested one was not found.

void StarMgr::setFlagLabels

(

bool

b

)

[inline, slot]

Set display flag for Star names (labels).

static void StarMgr::setFlagSciNames

(

bool

f

)

[inline, static, slot]

Show scientific or catalog names on stars without common names.

void StarMgr::setFlagStars

(

bool

b

)

[inline, slot]

Set display flag for Stars.

void StarMgr::setFontSize

(

double

newFontSize

)

[slot]

Define font size to use for star names display.

void StarMgr::setLabelColor

(

const Vec3f &

c

)

[inline, slot]

Set the color used to label bright stars.

void StarMgr::setLabelsAmount

(

float

a

)

[inline, slot]

Set the amount of star labels.

The real amount is also proportional with FOV. The limit is set in function of the stars magnitude

Parameters:

a

the amount between 0 and 10. 0 is no labels, 10 is maximum of labels

virtual void StarMgr::update

(

double

deltaTime

)

[inline, virtual]

Update any time-dependent features.

Includes fading in and out stars and labels when they are turned on and off.

Implements StelModule.