CECoordinates Class Reference

CECoordinates class is responsible for doing all of the celestial coordinate conversions. Command line tools are also available for "on the fly" conversions.

The different coordinate systems used:

• CIRS: Earth-centric coordinate systems
• ICRS: Solar system barycentric coordinate system
• Galactic: Galactic coordinates
• Observed: Observer specific coordinate system

Definition at line 48 of file CECoordinates.h.

Public Member Functions
virtual CEAngle	AngularSeparation (const CECoordinates &coords) const
	Get the angular separation between the coordinates represented by this object and another coordinate object. More...
	CECoordinates ()
	Default constructor. More...
	CECoordinates (const CEAngle &xcoord, const CEAngle &ycoord, const CECoordinateType &coord_type=CECoordinateType::ICRS)
	Primary constructor (NOTE: xcoord & ycoord are expected to be in radians by default. More...
	CECoordinates (const CECoordinates &other)
	Copy constructor. More...
	CECoordinates (const CECoordinateType &coord_type)
	Constructor from a coordinate type. More...
	CECoordinates (const std::vector< double > &xcoord, const std::vector< double > &ycoord, const CECoordinateType &coord_type=CECoordinateType::ICRS)
	Primary constructor. More...
CECoordinates	ConvertTo (CECoordinateType output_coord_type, const CEObserver &observer, const CEDate &date=CEDate::CurrentJD())
	Convert these coordinates to another coordinate system NOTE: If this object is not OBSERVED coordinates, only JD is needed. More...
CECoordinates	ConvertTo (CECoordinateType output_coord_type, double jd=CEDate::CurrentJD(), double longitude=0.0, double latitude=0.0, double elevation_m=0.0, double pressure_hPa=-1.0, double temperature_celsius=-1000, double relative_humidity=0.0, double dut1=0.0, double xp=0.0, double yp=0.0, double wavelength_um=0.5)
	Convert these coordinates to another coordinate system NOTE: If neither this object or output_coord_type are OBSERVED coordinates, only JD is needed. More...
CECoordinates	ConvertToCIRS (double jd=CEDate::CurrentJD(), double longitude=0.0, double latitude=0.0, double elevation_m=0.0, double pressure_hPa=-1.0, double temperature_celsius=-1000, double relative_humidity=0.0, double dut1=0.0, double xp=0.0, double yp=0.0, double wavelength_um=0.5)
	Convert these coordinates to CIRS coordinates. More...
CECoordinates	ConvertToGalactic (double jd=CEDate::CurrentJD(), double longitude=0.0, double latitude=0.0, double elevation_m=0.0, double pressure_hPa=-1.0, double temperature_celsius=-1000, double relative_humidity=0.0, double dut1=0.0, double xp=0.0, double yp=0.0, double wavelength_um=0.5)
	Convert these coordinates to GALACTIC coordinates. More...
CECoordinates	ConvertToICRS (double jd=CEDate::CurrentJD(), double longitude=0.0, double latitude=0.0, double elevation_m=0.0, double pressure_hPa=-1.0, double temperature_celsius=-1000, double relative_humidity=0.0, double dut1=0.0, double xp=0.0, double yp=0.0, double wavelength_um=0.5)
	Convert these coordinates to ICRS coordinates. More...
CECoordinates	ConvertToObserved (double jd=CEDate::CurrentJD(), double longitude=0.0, double latitude=0.0, double elevation_m=0.0, double pressure_hPa=-1.0, double temperature_celsius=-1000, double relative_humidity=0.0, double dut1=0.0, double xp=0.0, double yp=0.0, double wavelength_um=0.5)
	Convert these coordinates to observed coordinates. More...
CECoordinateType	GetCoordSystem (void) const
	Return coordinate system. More...
virtual CECoordinates	GetObservedCoords (const CEDate &date, const CEObserver &observer) const
	Return the observed coordinates using an observer object (CEObserver) More...
virtual CECoordinates	GetObservedCoords (const double &julian_date, const double &longitude, const double &latitude, const double &elevation_m=0.0, const double &pressure_hPa=-1.0, const double &temperature_celsius=-1000, const double &relative_humidity=0.0, const double &dut1=0.0, const double &xp=0.0, const double &yp=0.0, const double &wavelength_um=0.5) const
	Return the local sky coordinates of this object as a CECoordinates object. More...
CECoordinates &	operator= (const CECoordinates &other)
	Overloaded '=' (assignment) operator. More...
std::string	print (void) const
	Generate a message string that specifies the information about this coordinate. More...
virtual void	SetCoordinates (const CEAngle &xcoord, const CEAngle &ycoord, const CECoordinateType &coord_type=CECoordinateType::ICRS)
	Set the coordinates of this object. More...
virtual void	SetCoordinates (const CECoordinates &coords)
	Set the coordinates from another CECoordinates object. More...
virtual CEAngle	XCoord (const double &jd=CppEphem::julian_date_J2000()) const
	Return x coordinate at given Julian date. More...
virtual double	XCoordinate_Deg (double jd=CppEphem::julian_date_J2000()) const
	Returns x coordinate at given julian date in degrees. More...
virtual double	XCoordinate_Rad (double jd=CppEphem::julian_date_J2000()) const
	Return x coordinate at given Julian date in radians. More...
virtual CEAngle	YCoord (const double &jd=CppEphem::julian_date_J2000()) const
	Return y coordinate at given Julian date. More...
virtual double	YCoordinate_Deg (double jd=CppEphem::julian_date_J2000()) const
	Returns y coordinate at given Julian date in degrees. More...
virtual double	YCoordinate_Rad (double jd=CppEphem::julian_date_J2000()) const
	Returns y coordinate at given Julian date in radians. More...
virtual	~CECoordinates ()
	Destructor. More...

Static Public Member Functions
static CEAngle	AngularSeparation (const CEAngle &xcoord_first, const CEAngle &ycoord_first, const CEAngle &xcoord_second, const CEAngle &ycoord_second)
	Get the angular separation between two sets of coordinates. More...
static CEAngle	AngularSeparation (const CECoordinates &coords1, const CECoordinates &coords2)
	Get the angular separation between two coordinate objects. More...
static void	CIRS2Galactic (double ra, double dec, double *glon, double *glat, const CEDate &date=CEDate(), const CEAngleType &angle_type=CEAngleType::RADIANS)
	CIRS -> Galactic coordinate conversion. More...
static void	CIRS2ICRS (double input_ra, double input_dec, double *return_ra, double *return_dec, const CEDate &date=CEDate(), const CEAngleType &angle_type=CEAngleType::RADIANS)
	CIRS -> ICRS coordinate conversion. More...
static int	CIRS2Observed (double ra, double dec, double *az, double *zen, const CEDate &date, const CEObserver &observer, const CEAngleType &angle_type=CEAngleType::RADIANS, double wavelength_um=0.5, double *observed_ra=nullptr, double *observed_dec=nullptr, double *hour_angle=nullptr)
	CIRS -> Observed (or observer specific) coordinate conversion This function takes in verious observation parameters The integer returned is a status code with the following meanings: +1 = dubious year (too far into the past/future to be trusted) 0 = OK status -1 = unacceptable date. More...
static int	CIRS2Observed (double ra, double dec, double *az, double *zen, double julian_date, double longitude, double latitude, double elevation_m=0.0, double pressure_hPa=-1.0, double temperature_celsius=-1000, double relative_humidity=0.0, double dut1=0.0, double xp=0.0, double yp=0.0, double wavelength_um=0.5, double *observed_ra=nullptr, double *observed_dec=nullptr, double *hour_angle=nullptr)
	Raw method for converting CIRS -> Observed (observer specific) coordinates (uses the SOFA 'iauAtio13' function) Note: All angles are expected to be in radians. More...
static double	DMSToAngle (const std::vector< double > &angle, const CEAngleType &return_type=CEAngleType::DEGREES)
	Convert a given angle vector from {degrees, minutes, seconds} to an angle. More...
static void	Galactic2CIRS (double glon, double glat, double *ra, double *dec, const CEDate &date=CEDate(), const CEAngleType &angle_type=CEAngleType::RADIANS)
	Galactic -> CIRS coordinate conversion. More...
static void	Galactic2ICRS (double glon, double glat, double *ra, double *dec, const CEAngleType &angle_type=CEAngleType::RADIANS)
	Galactic -> ICRS coordinate conversion. More...
static int	Galactic2Observed (double glon, double glat, double *az, double *zen, const CEDate &date, const CEObserver &observer, const CEAngleType &angle_type=CEAngleType::RADIANS, double wavelength_um=0.5, double *observed_glon=nullptr, double *observed_glat=nullptr, double *hour_angle=nullptr)
	Galactic -> Observed (i.e. More...
static int	Galactic2Observed (double glon, double glat, double *az, double *zen, double julian_date, double longitude, double latitude, double elevation_m=0.0, double pressure_hPa=-1.0, double temperature_celsius=-1000, double relative_humidity=0.0, double dut1=0.0, double xp=0.0, double yp=0.0, double wavelength_um=0.50, double *observed_glon=nullptr, double *observed_glat=nullptr, double *hour_angle=nullptr)
	Raw method for converting Galactic -> Observed (observer specific) coordinates. More...
static std::vector< double >	GetDMS (const double &angle, const CEAngleType &angle_type=CEAngleType::DEGREES)
	Convert a given angle into degrees, arcminutes, arcseconds. More...
static std::vector< double >	GetHMS (const double &angle, const CEAngleType &angle_type=CEAngleType::DEGREES)
	Convert a given angle into hours, minutes, seconds. More...
static double	HMSToAngle (const std::vector< double > &angle, const CEAngleType &return_type=CEAngleType::DEGREES)
	Convert from {hours, minutes, seconds} to an angle. More...
static void	ICRS2CIRS (double input_ra, double input_dec, double *return_ra, double *return_dec, const CEDate &date=CEDate(), const CEAngleType &angle_type=CEAngleType::RADIANS)
	ICRS -> CIRS coordinate conversion. More...
static void	ICRS2Galactic (double ra, double dec, double *glon, double *glat, const CEAngleType &angle_type=CEAngleType::RADIANS)
	ICRS -> Galactic coordinate conversion (uses the SOFA 'iauIcrs2g' function) More...
static int	ICRS2Observed (double ra, double dec, double *az, double *zen, const CEDate &date, const CEObserver &observer, const CEAngleType &angle_type=CEAngleType::RADIANS, double wavelength_um=0.5, double *observed_ra=nullptr, double *observed_dec=nullptr, double *hour_angle=nullptr)
	ICRS -> Observed coordinate conversion. More...
static int	ICRS2Observed (double ra, double dec, double *az, double *zen, double julian_date, double longitude, double latitude, double elevation_m=0.0, double pressure_hPa=-1.0, double temperature_celsius=-1000, double relative_humidity=0.0, double dut1=0.0, double xp=0.0, double yp=0.0, double wavelength_um=0.5, double *observed_ra=nullptr, double *observed_dec=nullptr, double *hour_angle=nullptr)
	Raw method for converting CIRS -> Observed (observer specific) coordinates. More...
static int	Observed2CIRS (double az, double zen, double *ra, double *dec, const CEDate &date, const CEObserver &observer, const CEAngleType &angle_type=CEAngleType::RADIANS)
	Convert Observed -> CIRS coordinates. More...
static int	Observed2CIRS (double az, double zen, double *ra, double *dec, double julian_date, double longitude, double latitude, double elevation_m=0.0, double pressure_hPa=-1.0, double temperature_celsius=-1000, double relative_humidity=0.0, double dut1=0.0, double xp=0.0, double yp=0.0, double wavelength_um=0.5)
	Raw method for converting Observed (observer specific) -> CIRS coordinates (uses the SOFA 'iauAtoi13' function) Note: All angles are expected to be in radians. More...
static int	Observed2Galactic (double az, double zen, double *glon, double *glat, const CEDate &date, const CEObserver &observer, const CEAngleType &angle_type=CEAngleType::RADIANS)
	Convert Observed -> Galactic coordinates. More...
static int	Observed2Galactic (double az, double zen, double *glon, double *glat, double julian_date, double longitude, double latitude, double elevation_m=0.0, double pressure_hPa=-1.0, double temperature_celsius=-1000, double relative_humidity=0.0, double dut1=0.0, double xp=0.0, double yp=0.0, double wavelength_um=0.50)
	Raw method for converting Observed (observer specific) -> Galactic coordinates Note: All angles are expected to be in radians. More...
static int	Observed2ICRS (double az, double zen, double *ra, double *dec, const CEDate &date, const CEObserver &observer, const CEAngleType &angle_type=CEAngleType::RADIANS)
	Convert Observed -> ICRS coordinates. More...
static int	Observed2ICRS (double az, double zen, double *ra, double *dec, double julian_date, double longitude, double latitude, double elevation_m=0.0, double pressure_hPa=-1.0, double temperature_celsius=-1000, double relative_humidity=0.0, double dut1=0.0, double xp=0.0, double yp=0.0, double wavelength_um=0.5)
	Raw method for converting Observed (observer specific) -> ICRS coordinates Note: All angles are expected to be in radians. More...

Protected Attributes
CECoordinateType	coord_type_
CEAngle	xcoord_
CEAngle	ycoord_

Private Member Functions
void	copy_members (const CECoordinates &other)
	Copy data members from another CECoordinates object. More...
void	free_members (void)
	Cleanup data members that need to be freed or cleared. More...
void	init_members (void)
	Set initial values and allocate memory for data members. More...

Friends
bool	operator!= (const CECoordinates &lhs, const CECoordinates &rhs)
	Compare two coordinate objects. More...
bool	operator== (const CECoordinates &lhs, const CECoordinates &rhs)
	Compare two coordinate objects. More...

#include <CECoordinates.h>

Collaboration diagram for CECoordinates:

Constructor & Destructor Documentation

CECoordinates() [1/5]

CECoordinates::CECoordinates

(

)

Default constructor.

Definition at line 38 of file CECoordinates.cpp.

CECoordinates() [2/5]

CECoordinates::CECoordinates	(	const CEAngle &	xcoord,
		const CEAngle &	ycoord,
		const CECoordinateType &	coord_type = CECoordinateType::ICRS
	)

Primary constructor (NOTE: xcoord & ycoord are expected to be in radians by default.

Parameters

[in]	xcoord	X-Coordinate (radians)
[in]	ycoord	Y-Coordinate (radians)
[in]	coord_type	Coordinate type (see CECoordinateType)
[in]	angle_type	Angle type (either DEGREES or RADIANS)

Definition at line 52 of file CECoordinates.cpp.

CECoordinates() [3/5]

CECoordinates::CECoordinates	(	const std::vector< double > &	xcoord,
		const std::vector< double > &	ycoord,
		const CECoordinateType &	coord_type = CECoordinateType::ICRS
	)

Primary constructor.

Parameters

[in]	xcoord	X-Coordinate {hours,minutes,seconds}
[in]	ycoord	Y-Coordinate {degrees, arcmin, arcsec}
[in]	coord_type	Coordinate type (see CECoordinateType)
[in]	angle_type	Angle type (either DEGREES or RADIANS)

Definition at line 69 of file CECoordinates.cpp.

CECoordinates() [4/5]

CECoordinates::CECoordinates

(

const CECoordinateType &

coord_type

)

Constructor from a coordinate type.

Parameters

[in]

coord_type

Coordinate type (see CECoordinateType)

Definition at line 91 of file CECoordinates.cpp.

CECoordinates() [5/5]

CECoordinates::CECoordinates

(

const CECoordinates &

other

)

Copy constructor.

Parameters

[in]

other

Coordinates object to be copied

Definition at line 102 of file CECoordinates.cpp.

~CECoordinates()

CECoordinates::~CECoordinates ( )

virtual

Destructor.

Definition at line 112 of file CECoordinates.cpp.

Member Function Documentation

AngularSeparation() [1/3]

CEAngle CECoordinates::AngularSeparation ( const CEAngle &  xcoord_first, const CEAngle &  ycoord_first, const CEAngle &  xcoord_second, const CEAngle &  ycoord_second  )

static

Get the angular separation between two sets of coordinates.

Method utilizes the SOFA 'iauSeps' algorithm. NOTE: The coordinates are both expected to be in the same coordinate system!

Parameters

[in]	xcoord_first	X-value for first set of coordinates
[in]	ycoord_first	Y-value for first set of coordinates
[in]	xcoord_second	X-value for second set of coordiantes
[in]	ycoord_second	Y-value for second set of coordinates
[in]	return_angle_type	Specify whether input angles are DEGREES or RADIANS. (output angle will be in the same format)

Returns

Angular separation between two coordinates

Note that the x-coordinates are expected in the range [0, 2pi] and the y-coordinates are expected in the range [-pi, pi]. Because of this, you need to pass:

• ICRS: RA, Dec
• CIRS: RA, Dec
• GALACTIC: G.Lon, G.Lat
• OBSERVED: Az, Alt (by default the y-coordinate is zenith)

Definition at line 1235 of file CECoordinates.cpp.

AngularSeparation() [2/3]

CEAngle CECoordinates::AngularSeparation ( const CECoordinates &  coords ) const

virtual

Get the angular separation between the coordinates represented by this object and another coordinate object.

NOTE: The coordinates are both expected to be in the same coordinate system! If they are in different coordinate systems, use "ConvertTo()" first.

Parameters

[in]

coords

Another set of coordinates

Returns

Angular separation between these coordinates and 'coords'

Definition at line 1169 of file CECoordinates.cpp.

AngularSeparation() [3/3]

CEAngle CECoordinates::AngularSeparation ( const CECoordinates &  coords1, const CECoordinates &  coords2  )

static

Get the angular separation between two coordinate objects.

NOTE: The coordinates are both expected to be in the same coordinate system! If they are in different coordinate systems, use "ConvertTo()" first.

Parameters

[in]	coords1	First set of coordinates
[in]	coords2	Second set of coordinates
[in]	return_angle_type	Specify whether to return angle as DEGREES or RADIANS

Returns

Angular separation between two coordiantes

Note that the x-coordinates are expected in the range [0, 2pi] and the y-coordinates are expected in the range [-pi, pi]. Because of this, OBSERVED coordinates first convert the zenith angle to altitude

Definition at line 1189 of file CECoordinates.cpp.

CIRS2Galactic()

void CECoordinates::CIRS2Galactic ( double  input_ra, double  input_dec, double *  glon, double *  glat, const CEDate &  date = CEDate(), const CEAngleType &  angle_type = CEAngleType::RADIANS  )

static

CIRS -> Galactic coordinate conversion.

Parameters

[in]	input_ra	CIRS right ascension
[in]	input_dec	CIRS declination
[out]	glon	Galactic longitude
[out]	glat	Galactic latitude
[in]	date	Date information
[in]	angle_type	Angle format (DEGREES or RADIANS)

Definition at line 181 of file CECoordinates.cpp.

CIRS2ICRS()

void CECoordinates::CIRS2ICRS ( double  input_ra, double  input_dec, double *  return_ra, double *  return_dec, const CEDate &  date = CEDate(), const CEAngleType &  angle_type = CEAngleType::RADIANS  )

static

CIRS -> ICRS coordinate conversion.

(uses SOFA 'iauAtic13' function)

Parameters

[in]	input_ra	CIRS right ascension
[in]	input_dec	CIRS declination
[out]	return_ra	ICRS right ascension (returned)
[out]	return_dec	ICRS declinaton (returned)
[in]	date	Date information
[in]	angle_type	Input/output angle type (DEGREES or RADIANS)

Definition at line 144 of file CECoordinates.cpp.

CIRS2Observed() [1/2]

int CECoordinates::CIRS2Observed ( double  ra, double  dec, double *  az, double *  zen, const CEDate &  date, const CEObserver &  observer, const CEAngleType &  angle_type = CEAngleType::RADIANS, double  wavelength = 0.5, double *  observed_ra = nullptr, double *  observed_dec = nullptr, double *  hour_angle = nullptr  )

static

CIRS -> Observed (or observer specific) coordinate conversion This function takes in verious observation parameters The integer returned is a status code with the following meanings: +1 = dubious year (too far into the past/future to be trusted) 0 = OK status -1 = unacceptable date.

Parameters

[in]	ra	Right ascension in CIRS coordinates
[in]	dec	Declination in CIRS coordinates
[out]	az	Azimuth (returned)
[out]	zen	Zenith angle (returned)
[in]	observer	Observer information
[in]	angle_type	Angle type (see CEAngleType)
[in]	wavelength	Wavelength of the light being observed (micrometers)
[out]	observed_ra	Observed right ascension (returned)
[out]	observed_dec	Observed declination (returned)
[out]	hour_angle	Hour angle of object being observed (returned)

Definition at line 224 of file CECoordinates.cpp.

CIRS2Observed() [2/2]

int CECoordinates::CIRS2Observed ( double  ra, double  dec, double *  az, double *  zen, double  julian_date, double  longitude, double  latitude, double  elevation_m = 0.0, double  pressure_hPa = -1.0, double  temperature_celsius = -1000, double  relative_humidity = 0.0, double  dut1 = 0.0, double  xp = 0.0, double  yp = 0.0, double  wavelength_um = 0.5, double *  observed_ra = nullptr, double *  observed_dec = nullptr, double *  hour_angle = nullptr  )

static

Raw method for converting CIRS -> Observed (observer specific) coordinates (uses the SOFA 'iauAtio13' function) Note: All angles are expected to be in radians.

Parameters

[in]	ra	CIRS right ascension (radians)
[in]	dec	CIRS declination (radians)
[out]	az	Observed azimuth angle (radians, returned)
[out]	zen	Observed zenith angle (radians, returned)
[in]	julian_date	Julian date for conversion
[in]	longitude	Observer geographic longitude (radians)
[in]	latitude	Observer geographic latitude (radians)
[in]	elevation_m	Observer elevation (meters)
[in]	pressure_hPa	Atmospheric pressure (HPa)
[in]	temperature_celsius	Temperature (degrees Celsius)
[in]	relative_humidity	Relative humidity (0.0 - 1.0)
[in]	dut1	UT1 - UTC
[in]	xp	"x" polar motion
[in]	yp	"y" polar motion
[in]	wavelength_um	Wavelength (micrometers)
[out]	observed_ra	Apparent right ascension (returned)
[out]	observed_dec	Apparent declination (returned)
[out]	hour_angle	Hour angle

Definition at line 712 of file CECoordinates.cpp.

ConvertTo() [1/2]

CECoordinates CECoordinates::ConvertTo	(	CECoordinateType	output_coord_type,
		const CEObserver &	observer,
		const CEDate &	date = CEDate::CurrentJD()
	)

Convert these coordinates to another coordinate system NOTE: If this object is not OBSERVED coordinates, only JD is needed.

NOTE: If 'observer' is not nulltr then 'jd' will be ignored and the date will instead be derived from the observers date.

Parameters

[in]	output_coord_type	Output coordinate type (see CECoordinateType)
[in]	date	Julian date for conversion
[in]	observer	If these coordinates are OBSERVED, then observer represents the observer for these coordinates. Otherwise they represent the observer to convert the coordinates to.

Returns

Coordinates object that represents coordinates we're converting to

Definition at line 1261 of file CECoordinates.cpp.

ConvertTo() [2/2]

CECoordinates CECoordinates::ConvertTo	(	CECoordinateType	output_coord_type,
		double	jd = CEDate::CurrentJD(),
		double	longitude = 0.0,
		double	latitude = 0.0,
		double	elevation_m = 0.0,
		double	pressure_hPa = -1.0,
		double	temperature_celsius = -1000,
		double	relative_humidity = 0.0,
		double	dut1 = 0.0,
		double	xp = 0.0,
		double	yp = 0.0,
		double	wavelength_um = 0.5
	)

Convert these coordinates to another coordinate system NOTE: If neither this object or output_coord_type are OBSERVED coordinates, only JD is needed.

Parameters

[in]	output_coord_type	Output coordinate type (see CECoordinateType)
[in]	jd	Julian date for conversion
[in]	longitude	Observer longitude (radians, east-positive)
[in]	latitude	Observer latitude (radians)
[in]	elevation_m	Elevation (meters above sea level)
[in]	pressure_hPa	Atmospheric pressure (hPa)
[in]	temperature_celsius	Atmospheric temperature (degrees celsius)
[in]	relative_humidity	Relative humidity
[in]	dut1	DUT1 value representing UTC-UT1
[in]	xp	x-polar motion
[in]	yp	y-polar motion
[in]	wavelength_um	wavelength (micrometers)

Returns

CECoordinates object representing CIRS right ascension, declination

Definition at line 1300 of file CECoordinates.cpp.

ConvertToCIRS()

CECoordinates CECoordinates::ConvertToCIRS	(	double	jd = CEDate::CurrentJD(),
		double	longitude = 0.0,
		double	latitude = 0.0,
		double	elevation_m = 0.0,
		double	pressure_hPa = -1.0,
		double	temperature_celsius = -1000,
		double	relative_humidity = 0.0,
		double	dut1 = 0.0,
		double	xp = 0.0,
		double	yp = 0.0,
		double	wavelength_um = 0.5
	)

Convert these coordinates to CIRS coordinates.

NOTE: If this object is not OBSERVED coordinates, only JD is needed.

Parameters

[in]	jd	Julian date for conversion
[in]	longitude	Observer longitude (radians, east-positive)
[in]	latitude	Observer latitude (radians)
[in]	elevation_m	Elevation (meters above sea level)
[in]	pressure_hPa	Atmospheric pressure (hPa)
[in]	temperature_celsius	Atmospheric temperature (degrees celsius)
[in]	relative_humidity	Relative humidity
[in]	dut1	DUT1 value representing UTC-UT1
[in]	xp	x-polar motion
[in]	yp	y-polar motion
[in]	wavelength_um	wavelength (micrometers)

Returns

CECoordinates object representing CIRS right ascension, declination

Definition at line 1358 of file CECoordinates.cpp.

ConvertToGalactic()

CECoordinates CECoordinates::ConvertToGalactic	(	double	jd = CEDate::CurrentJD(),
		double	longitude = 0.0,
		double	latitude = 0.0,
		double	elevation_m = 0.0,
		double	pressure_hPa = -1.0,
		double	temperature_celsius = -1000,
		double	relative_humidity = 0.0,
		double	dut1 = 0.0,
		double	xp = 0.0,
		double	yp = 0.0,
		double	wavelength_um = 0.5
	)

Convert these coordinates to GALACTIC coordinates.

NOTE: If this object is not OBSERVED coordinates, only JD is needed. NOTE: If this object is ICRS coordinates, JD is not necessary

Parameters

[in]	jd	Julian date for conversion
[in]	longitude	Observer longitude (radians, east-positive)
[in]	latitude	Observer latitude (radians)
[in]	elevation_m	Elevation (meters above sea level)
[in]	pressure_hPa	Atmospheric pressure (hPa)
[in]	temperature_celsius	Atmospheric temperature (degrees celsius)
[in]	relative_humidity	Relative humidity
[in]	dut1	DUT1 value representing UTC-UT1
[in]	xp	x-polar motion
[in]	yp	y-polar motion
[in]	wavelength_um	wavelength (micrometers)

Returns

CECoordinates object representing galactic longitude,latitude

Definition at line 1471 of file CECoordinates.cpp.

ConvertToICRS()

CECoordinates CECoordinates::ConvertToICRS	(	double	jd = CEDate::CurrentJD(),
		double	longitude = 0.0,
		double	latitude = 0.0,
		double	elevation_m = 0.0,
		double	pressure_hPa = -1.0,
		double	temperature_celsius = -1000,
		double	relative_humidity = 0.0,
		double	dut1 = 0.0,
		double	xp = 0.0,
		double	yp = 0.0,
		double	wavelength_um = 0.5
	)

Convert these coordinates to ICRS coordinates.

NOTE: If this object is not OBSERVED coordinates, only JD is needed. NOTE: If this object is GALACTIC coordinates, JD is not necessary

Parameters

[in]	jd	Julian date for conversion
[in]	longitude	Observer longitude (radians, east-positive)
[in]	latitude	Observer latitude (radians)
[in]	elevation_m	Elevation (meters above sea level)
[in]	pressure_hPa	Atmospheric pressure (hPa)
[in]	temperature_celsius	Atmospheric temperature (degrees celsius)
[in]	relative_humidity	Relative humidity
[in]	dut1	DUT1 value representing UTC-UT1
[in]	xp	x-polar motion
[in]	yp	y-polar motion
[in]	wavelength_um	wavelength (micrometers)

Returns

CECoordinates object representing ICRS right ascension, declination

Definition at line 1418 of file CECoordinates.cpp.

ConvertToObserved()

CECoordinates CECoordinates::ConvertToObserved	(	double	jd = CEDate::CurrentJD(),
		double	longitude = 0.0,
		double	latitude = 0.0,
		double	elevation_m = 0.0,
		double	pressure_hPa = -1.0,
		double	temperature_celsius = -1000,
		double	relative_humidity = 0.0,
		double	dut1 = 0.0,
		double	xp = 0.0,
		double	yp = 0.0,
		double	wavelength_um = 0.5
	)

Convert these coordinates to observed coordinates.

Note: For accurate positions you MUST supply at least jd, longitude, and latitude

Parameters

[in]	jd	Julian date for conversion
[in]	longitude	Observer longitude (radians, east-positive)
[in]	latitude	Observer latitude (radians)
[in]	elevation_m	Elevation (meters above sea level)
[in]	pressure_hPa	Atmospheric pressure (hPa)
[in]	temperature_celsius	Atmospheric temperature (degrees celsius)
[in]	relative_humidity	Relative humidity
[in]	dut1	DUT1 value representing UTC-UT1
[in]	xp	x-polar motion
[in]	yp	y-polar motion
[in]	wavelength_um	wavelength (micrometers)

Returns

CECoordinates object representing the observed altitude, zenith angle of these coordinates.

Definition at line 1522 of file CECoordinates.cpp.

copy_members()

void CECoordinates::copy_members ( const CECoordinates &  other )

private

Copy data members from another CECoordinates object.

Parameters

[in]

other

Another coordinates objec to copy

Definition at line 1719 of file CECoordinates.cpp.

DMSToAngle()

double CECoordinates::DMSToAngle ( const std::vector< double > &  angle, const CEAngleType &  return_type = CEAngleType::DEGREES  )

static

Convert a given angle vector from {degrees, minutes, seconds} to an angle.

Parameters

[in]	angle	What is the angle value
[in]	return_type	Specifies angle type for returned value

Returns

Angle

The supplied angle value should be of length 3 with the indices having the following values -[0] = Degrees -[1] = Arcminutes -[2] = Arcseconds -[3] = Arcsec fraction (can be omitted if [2] is the decimal value)

Definition at line 1662 of file CECoordinates.cpp.

free_members()

void CECoordinates::free_members ( void  )

private

Cleanup data members that need to be freed or cleared.

Definition at line 1730 of file CECoordinates.cpp.

Galactic2CIRS()

void CECoordinates::Galactic2CIRS ( double  glon, double  glat, double *  ra, double *  dec, const CEDate &  date = CEDate(), const CEAngleType &  angle_type = CEAngleType::RADIANS  )

static

Galactic -> CIRS coordinate conversion.

Parameters

[in]	glon	Galactic longitude
[in]	glat	Galactic latitude
[out]	ra	CIRS right ascension
[out]	dec	CIRS declination
[in]	date	Date information
[in]	angle_type	Angle type (RADIANS or DEGREES)

Definition at line 441 of file CECoordinates.cpp.

Galactic2ICRS()

void CECoordinates::Galactic2ICRS ( double  glon, double  glat, double *  ra, double *  dec, const CEAngleType &  angle_type = CEAngleType::RADIANS  )

static

Galactic -> ICRS coordinate conversion.

Parameters

[in]	glon	Galactic longitude
[in]	glat	Galactic latitude
[out]	ra	ICRS right ascension (returned)
[out]	dec	ICRS declinaton (returned)
[in]	angle_type	Angle type (DEGREES or RADIANS)

Definition at line 474 of file CECoordinates.cpp.

Galactic2Observed() [1/2]

int CECoordinates::Galactic2Observed ( double  glon, double  glat, double *  az, double *  zen, const CEDate &  date, const CEObserver &  observer, const CEAngleType &  angle_type = CEAngleType::RADIANS, double  wavelength = 0.5, double *  observed_glon = nullptr, double *  observed_glat = nullptr, double *  hour_angle = nullptr  )

static

Galactic -> Observed (i.e.

observer specific) coordinate conversion. For the raw version of this method see CECoordinates::Galactic2Observed().

Parameters

[in]	glon	Galactic longitude
[in]	glat	Galactic latitude
[out]	az	Azimuth angle (returned)
[out]	zen	Zenith angle (returned)
[in]	observer	Observer information
[in]	wavelength	Wavelength
[out]	observed_glon	Observed galactic longitude (returned)
[out]	observed_glat	Observed galactic latitude (returned)
[out]	hour_angle	Observed hour angle of object

Definition at line 508 of file CECoordinates.cpp.

Galactic2Observed() [2/2]

int CECoordinates::Galactic2Observed ( double  glon, double  glat, double *  az, double *  zen, double  julian_date, double  longitude, double  latitude, double  elevation_m = 0.0, double  pressure_hPa = -1.0, double  temperature_celsius = -1000, double  relative_humidity = 0.0, double  dut1 = 0.0, double  xp = 0.0, double  yp = 0.0, double  wavelength = 0.50, double *  observed_glon = nullptr, double *  observed_glat = nullptr, double *  hour_angle = nullptr  )

static

Raw method for converting Galactic -> Observed (observer specific) coordinates.

Note: All angles are expected to be in radians.

Parameters

[in]	glon	Galactic longitude (radians)
[in]	glat	Galactic latitude (radians)
[out]	az	Observed azimuth angle (radians, returned)
[out]	zen	Observed zenith angle (radians, returned)
[in]	julian_date	Julian date for conversion
[in]	longitude	Observer geographic longitude (radians)
[in]	latitude	Observer geographic latitude (radians)
[in]	elevation_m	Observer elevation (meters)
[in]	pressure_hPa	Atmospheric pressure (HPa)
[in]	temperature_celsius	Temperature (degrees Celsius)
[in]	relative_humidity	Relative humidity (0.0 - 1.0)
[in]	dut1	UTC - UT1
[in]	xp	"x" polar motion
[in]	yp	"y" polar motion
[in]	wavelength	Wavelength
[out]	observed_glon	Apparent galactic longitude (returned)
[out]	observed_glat	Apparent galactic latitude (returned)
[out]	hour_angle	Hour angle

Definition at line 965 of file CECoordinates.cpp.

GetCoordSystem()

CECoordinateType CECoordinates::GetCoordSystem ( void  ) const

inline

Return coordinate system.

Returns

Coordinate type of this object

Definition at line 486 of file CECoordinates.h.

GetDMS()

std::vector< double > CECoordinates::GetDMS ( const double &  angle, const CEAngleType &  angle_type = CEAngleType::DEGREES  )

static

Convert a given angle into degrees, arcminutes, arcseconds.

Parameters

[in]	angle	What is the angle value
[in]	angle_type	Specifies what type of angle

Returns

Vector containing the following values -[0] = Degrees -[1] = Arcminutes -[2] = Arcseconds -[3] = Arcsec fraction

Definition at line 1594 of file CECoordinates.cpp.

GetHMS()

std::vector< double > CECoordinates::GetHMS ( const double &  angle, const CEAngleType &  angle_type = CEAngleType::DEGREES  )

static

Convert a given angle into hours, minutes, seconds.

This method is almost exclusively only useful for right ascension

Parameters

[in]	angle	What is the angle value
[in]	angle_type	Specifies what type of angle

Returns

Vector containing the following values -[0] = Hours -[1] = Minutes -[2] = Seconds -[3] = Fractions of a second

Definition at line 1613 of file CECoordinates.cpp.

GetObservedCoords() [1/2]

CECoordinates CECoordinates::GetObservedCoords ( const CEDate &  date, const CEObserver &  observer  ) const

virtual

Return the observed coordinates using an observer object (CEObserver)

Parameters

[in]	date	Julian date of the observation
[in]	observer	Observer information
[in]	wavelength_um	Wavelength being observed (micrometers)

Returns

These coordinates converted into the observed coordinates of 'observer'

Definition at line 1143 of file CECoordinates.cpp.

GetObservedCoords() [2/2]

CECoordinates CECoordinates::GetObservedCoords ( const double &  julian_date, const double &  longitude, const double &  latitude, const double &  elevation_m = 0.0, const double &  pressure_hPa = -1.0, const double &  temperature_celsius = -1000, const double &  relative_humidity = 0.0, const double &  dut1 = 0.0, const double &  xp = 0.0, const double &  yp = 0.0, const double &  wavelength = 0.5  ) const

virtual

Return the local sky coordinates of this object as a CECoordinates object.

Parameters

[in]	julian_date	Julian date of the observation
[in]	longitude	Observer longitude (radians)
[in]	latitude	Observer latitude (radians)
[in]	elevation_m	Observer elevation (meters)
[in]	pressure_hPa	Observer atmospheric pressure (hPa)
[in]	temerature_celsius	Temperature (degrees Celsius)
[in]	relative_humidity	Relative humidity
[in]	dut1	'UTC-UT1'
[in]	xp	x-polar motion
[in]	yp	y-polar motion
[in]	wavelength_um	Wavelength being observed (micrometers)

Returns

These coordinates converted into the observed coordinates of the observer specified

Definition at line 1087 of file CECoordinates.cpp.

HMSToAngle()

double CECoordinates::HMSToAngle ( const std::vector< double > &  angle, const CEAngleType &  return_type = CEAngleType::DEGREES  )

static

Convert from {hours, minutes, seconds} to an angle.

Parameters

[in]	angle	What is the angle value
[in]	return_type	Specifies angle type for returned value

Returns

Angle

The supplied angle value should be of length 3 with the indices having the following values -[0] = Hours -[1] = Minutes -[2] = Seconds -[3] = Fraction of a second (not absolutely necessary)

Definition at line 1636 of file CECoordinates.cpp.

ICRS2CIRS()

void CECoordinates::ICRS2CIRS ( double  input_ra, double  input_dec, double *  return_ra, double *  return_dec, const CEDate &  date = CEDate(), const CEAngleType &  angle_type = CEAngleType::RADIANS  )

static

ICRS -> CIRS coordinate conversion.

Uses the SOFA function 'iauAtci13'

Parameters

[in]	input_ra	Right ascension to be converted
[in]	input_dec	Declination to be converted
[out]	return_ra	CIRS Right ascension (returned)
[out]	return_dec	CIRS Declination (returned)
[in]	date	Date object
[in]	angle_type	Angle type (either DEGREES or RADIANS)

Definition at line 287 of file CECoordinates.cpp.

ICRS2Galactic()

void CECoordinates::ICRS2Galactic ( double  input_ra, double  input_dec, double *  glon, double *  glat, const CEAngleType &  angle_type = CEAngleType::RADIANS  )

static

ICRS -> Galactic coordinate conversion (uses the SOFA 'iauIcrs2g' function)

Parameters

[in]	input_ra	ICRS Right ascension
[in]	input_dec	ICRS Declination
[out]	glon	Galactic longitude
[out]	glat	Galactic latitude
[in]	angle_type	Angle type

Definition at line 336 of file CECoordinates.cpp.

ICRS2Observed() [1/2]

int CECoordinates::ICRS2Observed ( double  ra, double  dec, double *  az, double *  zen, const CEDate &  date, const CEObserver &  observer, const CEAngleType &  angle_type = CEAngleType::RADIANS, double  wavelength = 0.5, double *  observed_ra = nullptr, double *  observed_dec = nullptr, double *  hour_angle = nullptr  )

static

ICRS -> Observed coordinate conversion.

The integer returned is a status code with the following meanings: +1 = dubious year (too far into the past/future to be trusted) 0 = OK status -1 = unacceptable date

Parameters

[in]	ra	ICRS right ascension
[in]	dec	ICRS declination
[out]	az	Azimuth
[out]	zen	Zenith
[in]	observer	Observer information
[in]	angle_type	Angle type
[out]	observed_ra	Apparent ICRS Right Ascension
[out]	observed_dec	Apparent ICRS Declination
[out]	hour_angle	Observed hour angle of object

Definition at line 373 of file CECoordinates.cpp.

ICRS2Observed() [2/2]

int CECoordinates::ICRS2Observed ( double  ra, double  dec, double *  az, double *  zen, double  julian_date, double  longitude, double  latitude, double  elevation_m = 0.0, double  pressure_hPa = -1.0, double  temperature_celsius = -1000, double  relative_humidity = 0.0, double  dut1 = 0.0, double  xp = 0.0, double  yp = 0.0, double  wavelength_um = 0.5, double *  observed_ra = nullptr, double *  observed_dec = nullptr, double *  hour_angle = nullptr  )

static

Raw method for converting CIRS -> Observed (observer specific) coordinates.

Note: All angles are expected to be in radians.

Parameters

[in]	ra	CIRS right ascension (radians)
[in]	dec	CIRS declination (radians)
[out]	az	Observed azimuth angle (radians, returned)
[out]	zen	Observed zenith angle (radians, returned)
[in]	julian_date	Julian date for conversion
[in]	longitude	Observer geographic longitude (radians)
[in]	latitude	Observer geographic latitude (radians)
[in]	elevation_m	Observer elevation (meters)
[in]	pressure_hPa	Atmospheric pressure (HPa)
[in]	temperature_celsius	Temperature (degrees Celsius)
[in]	relative_humidity	Relative humidity (0.0 - 1.0)
[in]	dut1	UTC - UT1
[in]	xp	"x" polar motion
[in]	yp	"y" polar motion
[in]	wavelength	Wavelength (micrometers)
[out]	observed_ra	Apparent right ascension (returned)
[out]	observed_dec	Apparent declination (returned)
[out]	hour_angle	Hour angle

Definition at line 838 of file CECoordinates.cpp.

init_members()

void CECoordinates::init_members ( void  )

private

Set initial values and allocate memory for data members.

Definition at line 1739 of file CECoordinates.cpp.

Observed2CIRS() [1/2]

int CECoordinates::Observed2CIRS ( double  az, double  zen, double *  ra, double *  dec, const CEDate &  date, const CEObserver &  observer, const CEAngleType &  angle_type = CEAngleType::RADIANS  )

static

Convert Observed -> CIRS coordinates.

Parameters

[in]	az	Azimuth of the coordinates
[in]	zen	Zenith angle of the coordinates
[out]	ra	CIRS right ascension (returned)
[out]	dec	CIRS declination (returned)
[in]	observer	CEObserver object describing observer
[in]	angle_type	Angle type of input/output coordinates

Definition at line 566 of file CECoordinates.cpp.

Observed2CIRS() [2/2]

int CECoordinates::Observed2CIRS ( double  az, double  zen, double *  ra, double *  dec, double  julian_date, double  longitude, double  latitude, double  elevation_m = 0.0, double  pressure_hPa = -1.0, double  temperature_celsius = -1000, double  relative_humidity = 0.0, double  dut1 = 0.0, double  xp = 0.0, double  yp = 0.0, double  wavelength_um = 0.5  )

static

Raw method for converting Observed (observer specific) -> CIRS coordinates (uses the SOFA 'iauAtoi13' function) Note: All angles are expected to be in radians.

Parameters

[in]	az	Observed azimuth angle
[in]	zen	Observed zenith angle
[out]	ra	CIRS right ascension (returned)
[out]	dec	CIRS declination (returned)
[in]	julian_date	Julian date for conversion
[in]	longitude	Observer geographic longitude
[in]	latitude	Observer geographic latitude
[in]	elevation_m	Observer elevation (meters)
[in]	pressure_hPa	Atmospheric pressure (HPa)
[in]	temperature_celsius	Temperature (degrees Celsius)
[in]	relative_humidity	Relative humidity (0.0 - 1.0)
[in]	dut1	UTC - UT1
[in]	xp	"x" polar motion
[in]	yp	"y" polar motion
[in]	wavelength_um	Wavelength (micrometers)

Definition at line 787 of file CECoordinates.cpp.

Observed2Galactic() [1/2]

int CECoordinates::Observed2Galactic ( double  az, double  zen, double *  glon, double *  glat, const CEDate &  date, const CEObserver &  observer, const CEAngleType &  angle_type = CEAngleType::RADIANS  )

static

Convert Observed -> Galactic coordinates.

Parameters

[in]	az	Azimuth of the coordinates
[in]	zen	Zenith angle of the coordinates
[out]	glon	Galactic longitude (returned)
[out]	glat	Galactic latitude (returned)
[in]	observer	CEObserver object describing observer
[in]	angle_type	Angle type of input/output coordinates

Definition at line 653 of file CECoordinates.cpp.

Observed2Galactic() [2/2]

int CECoordinates::Observed2Galactic ( double  az, double  zen, double *  glon, double *  glat, double  julian_date, double  longitude, double  latitude, double  elevation_m = 0.0, double  pressure_hPa = -1.0, double  temperature_celsius = -1000, double  relative_humidity = 0.0, double  dut1 = 0.0, double  xp = 0.0, double  yp = 0.0, double  wavelength_um = 0.50  )

static

Raw method for converting Observed (observer specific) -> Galactic coordinates Note: All angles are expected to be in radians.

Parameters

[in]	az	Observed azimuth angle (radians)
[in]	zen	Observed zenith angle (radians)
[out]	glon	Galactic longitude (radians, returned)
[out]	glat	Galactic latitude (radians, returned)
[in]	julian_date	Julian date for conversion
[in]	longitude	Observer geographic longitude (radians)
[in]	latitude	Observer geographic latitude (radians)
[in]	elevation_m	Observer elevation (meters)
[in]	pressure_hPa	Atmospheric pressure (HPa)
[in]	temperature_celsius	Temperature (degrees Celsius)
[in]	relative_humidity	Relative humidity (0.0 - 1.0)
[in]	dut1	UTC - UT1
[in]	xp	"x" polar motion
[in]	yp	"y" polar motion
[in]	wavelength_um	Wavelength (micrometers)

Definition at line 1041 of file CECoordinates.cpp.

Observed2ICRS() [1/2]

int CECoordinates::Observed2ICRS ( double  az, double  zen, double *  ra, double *  dec, const CEDate &  date, const CEObserver &  observer, const CEAngleType &  angle_type = CEAngleType::RADIANS  )

static

Convert Observed -> ICRS coordinates.

Parameters

[in]	az	Azimuth of the coordinates
[in]	zen	Zenith angle of the coordinates
[out]	ra	CIRS right ascension (returned)
[out]	dec	CIRS declination (returned)
[in]	observer	CEObserver object describing observer
[in]	angle_type	Angle type of input/output coordinates

Definition at line 608 of file CECoordinates.cpp.

Observed2ICRS() [2/2]

int CECoordinates::Observed2ICRS ( double  az, double  zen, double *  ra, double *  dec, double  julian_date, double  longitude, double  latitude, double  elevation_m = 0.0, double  pressure_hPa = -1.0, double  temperature_celsius = -1000, double  relative_humidity = 0.0, double  dut1 = 0.0, double  xp = 0.0, double  yp = 0.0, double  wavelength_um = 0.5  )

static

Raw method for converting Observed (observer specific) -> ICRS coordinates Note: All angles are expected to be in radians.

Parameters

[in]	az	Observed azimuth angle (radians)
[in]	zen	Observed zenith angle (radians)
[out]	ra	ICRS right ascension (radians, returned)
[out]	dec	ICRS declination (radians, returned)
[in]	julian_date	Julian date for conversion
[in]	longitude	Observer geographic longitude (radians)
[in]	latitude	Observer geographic latitude (radians)
[in]	elevation_m	Observer elevation (meters)
[in]	pressure_hPa	Atmospheric pressure (HPa)
[in]	temperature_celsius	Temperature (degrees Celsius)
[in]	relative_humidity	Relative humidity (0.0 - 1.0)
[in]	dut1	UTC - UT1
[in]	xp	"x" polar motion
[in]	yp	"y" polar motion
[in]	wavelength_um	Wavelength (micrometers)

Definition at line 911 of file CECoordinates.cpp.

operator=()

CECoordinates & CECoordinates::operator=

(

const CECoordinates &

other

)

Overloaded '=' (assignment) operator.

Parameters

[in]

other

Coordinates object to be copied

Returns

Duplicated CECoordinates object

Definition at line 122 of file CECoordinates.cpp.

print()

std::string CECoordinates::print

(

void

)

const

Generate a message string that specifies the information about this coordinate.

Returns

String describing this object

Definition at line 1705 of file CECoordinates.cpp.

SetCoordinates() [1/2]

void CECoordinates::SetCoordinates ( const CEAngle &  xcoord, const CEAngle &  ycoord, const CECoordinateType &  coord_type = CECoordinateType::ICRS  )

virtual

Set the coordinates of this object.

Parameters

[in]	xcoord	X-coordinate
[in]	ycoord	Y-coordinate
[in]	coord_type	Coordinate type (see CECoordinateType)
[in]	angle_type	Specifies whether xcoord & ycoord are in RADIANS or DEGREES (see CEAngleType)

Definition at line 1682 of file CECoordinates.cpp.

SetCoordinates() [2/2]

void CECoordinates::SetCoordinates ( const CECoordinates &  coords )

virtual

Set the coordinates from another CECoordinates object.

Parameters

[in]

coords

Another coordinates object to copy

Definition at line 1695 of file CECoordinates.cpp.

XCoord()

CEAngle CECoordinates::XCoord ( const double &  jd = CppEphem::julian_date_J2000() ) const

inlinevirtual

Return x coordinate at given Julian date.

Parameters

[in]

jd

Julian date (used only by derived classes)

Returns

X-coordinate as a CEAngle

Definition at line 411 of file CECoordinates.h.

XCoordinate_Deg()

double CECoordinates::XCoordinate_Deg ( double  jd = CppEphem::julian_date_J2000() ) const

inlinevirtual

Returns x coordinate at given julian date in degrees.

Parameters

[in]

jd

Julian date (used only by derived classes)

Returns

X-coordinate in degrees

Definition at line 450 of file CECoordinates.h.

XCoordinate_Rad()

double CECoordinates::XCoordinate_Rad ( double  jd = CppEphem::julian_date_J2000() ) const

inlinevirtual

Return x coordinate at given Julian date in radians.

Parameters

[in]

jd

Julian date (used only by derived classes)

Returns

X-coordinate in radians

Definition at line 437 of file CECoordinates.h.

YCoord()

CEAngle CECoordinates::YCoord ( const double &  jd = CppEphem::julian_date_J2000() ) const

inlinevirtual

Return y coordinate at given Julian date.

Parameters

[in]

jd

Julian date (used only by derived classes)

Returns

X-coordinate as a CEAngle

Definition at line 424 of file CECoordinates.h.

YCoordinate_Deg()

double CECoordinates::YCoordinate_Deg ( double  jd = CppEphem::julian_date_J2000() ) const

inlinevirtual

Returns y coordinate at given Julian date in degrees.

Parameters

[in]

jd

Julian date (used only by derived classes)

Returns

Y-coordinate in degrees

Definition at line 475 of file CECoordinates.h.

YCoordinate_Rad()

double CECoordinates::YCoordinate_Rad ( double  jd = CppEphem::julian_date_J2000() ) const

inlinevirtual

Returns y coordinate at given Julian date in radians.

Parameters

[in]

jd

Julian date (used only by derived classes)

Returns

Y-coordinate in radians

Definition at line 463 of file CECoordinates.h.

Friends And Related Function Documentation

operator!=

bool operator!= ( const CECoordinates &  lhs, const CECoordinates &  rhs  )

friend

Compare two coordinate objects.

Returns

True if two coordinates are NOT equal to each other

Definition at line 1778 of file CECoordinates.cpp.

operator==

bool operator== ( const CECoordinates &  lhs, const CECoordinates &  rhs  )

friend

Compare two coordinate objects.

Returns

True if the two coordinates are equal to each other

Definition at line 1751 of file CECoordinates.cpp.

Member Data Documentation

coord_type_

CECoordinateType CECoordinates::coord_type_

protected

Definition at line 387 of file CECoordinates.h.

xcoord_

CEAngle CECoordinates::xcoord_

mutableprotected

Definition at line 385 of file CECoordinates.h.

ycoord_

CEAngle CECoordinates::ycoord_

mutableprotected

Definition at line 386 of file CECoordinates.h.

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

• cppephem/include/CECoordinates.h
• cppephem/src/CECoordinates.cpp