StarComponent Class Reference

#include <starcomponent.h>

Inheritance diagram for StarComponent:

Public Member Functions
void	appendListObject (SkyObject *object)
void	draw (SkyPainter *skyp) override
void	drawLabels ()
StarObject *	findByHDIndex (int HDnum)
virtual SkyObject *	findStarByGenetiveName (const QString name)
SkyObject *	objectNearest (SkyPoint *p, double &maxrad) override
void	objectsInArea (QList< SkyObject * > &list, const SkyRegion &region) override
bool	selected () override
void	starsInAperture (QList< StarObject * > &list, const SkyPoint &center, float radius, float maglim=-29)
void	update (KSNumbers *num) override
Public Member Functions inherited from ListComponent
	ListComponent (SkyComposite *parent)
void	appendListObject (SkyObject *object)
void	clear ()
SkyObject *	findByName (const QString &name, bool exact=true) override
const QList< SkyObject * > &	objectList () const
Public Member Functions inherited from SkyComponent
	SkyComponent (SkyComposite *parent=nullptr)
virtual void	drawTrails (SkyPainter *skyp)
virtual void	emitProgressText (const QString &message)
QHash< int, QVector< QPair< QString, const SkyObject * > > > &	objectLists ()
QVector< QPair< QString, const SkyObject * > > &	objectLists (int type)
QHash< int, QStringList > &	objectNames ()
QStringList &	objectNames (int type)
SkyComposite *	parent ()
void	removeFromLists (const SkyObject *obj)
void	removeFromNames (const SkyObject *obj)
virtual void	updateMoons (KSNumbers *)
virtual void	updateSolarSystemBodies (KSNumbers *)

Static Public Member Functions
static void	byteSwap (StarData *stardata)
static StarComponent *	Create (SkyComposite *)
static StarComponent *	Instance ()
static float	zoomMagnitudeLimit ()

Protected Member Functions
	StarComponent (SkyComposite *)

Additional Inherited Members
Protected Attributes inherited from ListComponent
QHash< QString, SkyObject * >	m_ObjectHash
QList< SkyObject * >	m_ObjectList

Detailed Description

Represents the stars on the sky map.

For optimization reasons the stars are not separate objects and are stored in a list.

The StarComponent class manages all stars drawn in KStars. While it handles all stars having names using its own member methods, it shunts the responsibility of unnamed stars to the class 'DeepStarComponent', objects of which it maintains.

Author

Thomas Kabelmann

Akarsh Simha

Version

1.0

Definition at line 47 of file starcomponent.h.

Constructor & Destructor Documentation

StarComponent()

StarComponent::StarComponent ( SkyComposite * parent )

protected

Definition at line 48 of file starcomponent.cpp.

~StarComponent()

StarComponent::~StarComponent ( )

override

Definition at line 80 of file starcomponent.cpp.

Member Function Documentation

appendListObject()

void StarComponent::appendListObject

(

SkyObject *

object

)

Append a star to the Object List.

(including genetive name)

Overrides ListComponent::appendListObject() to include genetive names of stars as well.

Definition at line 575 of file starcomponent.cpp.

byteSwap()

void StarComponent::byteSwap ( StarData * stardata )

static

Definition at line 753 of file starcomponent.cpp.

Create()

StarComponent * StarComponent::Create ( SkyComposite * parent )

static

Create an instance of StarComponent.

Definition at line 92 of file starcomponent.cpp.

draw()

void StarComponent::draw ( SkyPainter * skyp )

overridevirtual

Draw the object on the SkyMap skyp a pointer to the SkyPainter to use.

Implements SkyComponent.

Definition at line 251 of file starcomponent.cpp.

drawLabels()

void StarComponent::drawLabels

(

)

draw all the labels in the prioritized LabelLists and then clear the LabelLists.

Definition at line 368 of file starcomponent.cpp.

findByHDIndex()

StarObject * StarComponent::findByHDIndex

(

int

HDnum

)

Find stars by HD catalog index.

Parameters

HDnum

HD Catalog Number of the star to find

Returns

If the star is a static star, a pointer to the star will be returned If it is a dynamic star, a fake copy will be created that survives till the next findByHDIndex() call. If no match was found, returns nullptr.

Definition at line 610 of file starcomponent.cpp.

findStarByGenetiveName()

SkyObject * StarComponent::findStarByGenetiveName ( const QString name )

virtual

Definition at line 585 of file starcomponent.cpp.

Instance()

static StarComponent * StarComponent::Instance ( )

inlinestatic

Returns

the instance of StarComponent if already created, nullptr otherwise

Definition at line 64 of file starcomponent.h.

objectNearest()

SkyObject * StarComponent::objectNearest ( SkyPoint * p, double & maxrad )

overridevirtual

Find the SkyObject nearest the given SkyPoint.

Look for a SkyObject that is nearer to point p than maxrad. If one is found, then maxrad is reset to the separation of the new nearest object. p pointer to the SkyPoint to search around maxrad reference to current search radius in degrees

Returns

a pointer to the nearest SkyObject

Note

This function simply returns a nullptr pointer; it is reimplemented in various sub-classes.

Reimplemented from ListComponent.

Definition at line 667 of file starcomponent.cpp.

objectsInArea()

void StarComponent::objectsInArea ( QList< SkyObject * > & list, const SkyRegion & region )

overridevirtual

Searches the region(s) and appends the SkyObjects found to the list of sky objects.

Look for a SkyObject that is in one of the regions If found, then append to the list of sky objects list list of SkyObject to which matching list has to be appended to region defines the regions in which the search for SkyObject should be done within

Reimplemented from SkyComponent.

Definition at line 598 of file starcomponent.cpp.

selected()

bool StarComponent::selected ( )

overridevirtual

Returns

true if component is to be drawn on the map.

Reimplemented from SkyComponent.

Definition at line 99 of file starcomponent.cpp.

starsInAperture()

void StarComponent::starsInAperture	(	QList< StarObject * > &	list,
		const SkyPoint &	center,
		float	radius,
		float	maglim = -29 )

Add to the given list, the stars from this component, that lie within the specified circular aperture, and that are brighter than the limiting magnitude specified.

center The center point of the aperture radius The radius around the center point that defines the aperture maglim Optional parameter indicating the limiting magnitude. If magnitude limit is numerically < -28, the limiting magnitude is assumed to be the limiting magnitude of the catalog (i.e. no magnitude limit) list The list to operate on

Definition at line 717 of file starcomponent.cpp.

update()

void StarComponent::update ( KSNumbers * num )

overridevirtual

Update the sky positions of this component.

This function usually just updates the Horizontal (Azimuth/Altitude) coordinates of the objects in this component. If the KSNumbers* argument is not nullptr, this function also recomputes precession and nutation for the date in KSNumbers. num Pointer to the KSNumbers object

Note

By default, the num parameter is nullptr, indicating that Precession/Nutation computation should be skipped; this computation is only occasionally required.

Reimplemented from ListComponent.

Definition at line 133 of file starcomponent.cpp.

zoomMagnitudeLimit()

float StarComponent::zoomMagnitudeLimit ( )

static

Definition at line 218 of file starcomponent.cpp.

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

• starcomponent.h
• starcomponent.cpp