ZoneArray Class Reference

Manages all ZoneData structures of a given StelGeodesicGrid level. More...

#include <ZoneArray.hpp>

Public Member Functions
unsigned int	getNrOfStars () const
	Get the total number of stars in this catalog.
virtual void	updateHipIndex (HipIndexStruct hipIndex[]) const
	Dummy method that does nothing. See subclass implementation.
virtual void	searchAround (const StelCore *core, int index, const Vec3d &v, double cosLimFov, QList< StelObjectP > &result)=0
	Pure virtual method. See subclass implementation.
virtual void	draw (StelPainter *sPainter, int index, bool is_inside, const RCMag *rcmag_table, int limitMagIndex, StelCore *core, int maxMagStarName, float names_brightness, const QVector< SphericalCap > &boundingCaps) const =0
	Pure virtual method. See subclass implementation.
bool	isInitialized (void) const
	Get whether or not the catalog was successfully loaded. More...
void	initTriangle (int index, const Vec3f &c0, const Vec3f &c1, const Vec3f &c2)
	Initialize the ZoneData struct at the given index.
virtual void	scaleAxis ()=0

Static Public Member Functions
static ZoneArray *	create (const QString &extended_file_name, bool use_mmap)
	Named public constructor for ZoneArray. More...

Data Fields
const QString	fname
	File path of the catalog.
const int	level
	Level in StelGeodesicGrid.
const int	mag_min
	Lower bound of magnitudes in this level. Units: millimag. May be negative for brightest stars.
const int	mag_range
	Range of magnitudes in this level. Units: millimags.
const int	mag_steps
	Number of steps used to describe values in mag_range. Always positive. Individual stars have their mag entries from 0..mag_steps.
float	star_position_scale

Protected Member Functions
	ZoneArray (const QString &fname, QFile *file, int level, int mag_min, int mag_range, int mag_steps)
	Protected constructor. Initializes fields and does not load anything.

Static Protected Member Functions
static bool	readFile (QFile &file, void *data, qint64 size)
	Load a catalog and display its progress on the splash screen. More...

Protected Attributes
unsigned int	nr_of_zones
unsigned int	nr_of_stars
ZoneData *	zones
QFile *	file

Detailed Description

An instance of this class is never created directly; the named constructor returns an instance of one of its subclasses. All it really does is bootstrap the loading process.

Member Function Documentation

static ZoneArray* ZoneArray::create ( const QString &  extended_file_name, bool  use_mmap  )

static

Opens a catalog, reads its header info, and creates a SpecialZoneArray or HipZoneArray for loading.

Parameters

extended_file_name	path of the star catalog to load from
use_mmap	whether or not to mmap the star catalog

Returns

an instance of SpecialZoneArray or HipZoneArray

bool ZoneArray::isInitialized ( void  ) const

inline

Returns

true if at least one zone was loaded, otherwise false

static bool ZoneArray::readFile ( QFile &  file, void *  data, qint64  size  )

staticprotected

Returns

true if successful, or false if an error occurred