pcl::ObserverPosition Struct Reference

Geodetic coordinates of a terrestrial observer. More...

#include <Position.h>

Public Member Functions
	ObserverPosition ()=default
	ObserverPosition (const ObserverPosition &)=default
	ObserverPosition (double longitude, double latitude, double height=0, double equatorialRadius=ea_eq_radius_IAU2009, double flattening=ea_flattening_IERS2010, const Vector &regionalCenter=Vector(0, 0, 0), bool useCIO=false)
	ObserverPosition (ObserverPosition &&)=default
ObserverPosition &	operator= (const ObserverPosition &)=default
ObserverPosition &	operator= (ObserverPosition &&)=default

Public Attributes
double	a = ea_eq_radius_IAU2009
	Equatorial radius of the reference spheroid in meters.
bool	cioBased = false
	Whether to compute CIO-based or equinox-based topocentric coordinates.
double	f = ea_flattening_IERS2010
	Flattening of the reference spheroid.
double	h = 0
	Geodetic height in meters.
double	lambda = 0
	Geodetic longitude in degrees.
double	phi = 0
	Geodetic latitude in degrees.
Vector	r0 = Vector( 0, 0, 0 )
	Geocentric rectangular coordinates of the center of the regional spheroid, in meters.

Static Public Attributes
constexpr static double	ea_eq_radius_IAU2009 = 6378136.6
constexpr static double	ea_flattening_IERS2010 = 1/298.25642

Detailed Description

This structure provides the data necessary to calculate topocentric places of solar system bodies and stars.

Definition at line 194 of file Position.h.

Constructor & Destructor Documentation

ObserverPosition() [1/4]

pcl::ObserverPosition::ObserverPosition ( )

default

Default constructor.

Constructs an ObserverPosition object for a fictitious observer at the geocenter. See data members for specific default values.

ObserverPosition() [2/4]

pcl::ObserverPosition::ObserverPosition ( const ObserverPosition &  )

default

Copy constructor.

ObserverPosition() [3/4]

pcl::ObserverPosition::ObserverPosition ( ObserverPosition &&  )

default

Move constructor.

ObserverPosition() [4/4]

pcl::ObserverPosition::ObserverPosition ( double  longitude, double  latitude, double  height = 0, double  equatorialRadius = ea_eq_radius_IAU2009, double  flattening = ea_flattening_IERS2010, const Vector &  regionalCenter = Vector( 0, 0, 0 ), bool  useCIO = false  )

inline

Memberwise constructor.

Parameters

longitude	Geodetic longitude in degrees.
latitude	Geodetic latitude in degrees.
height	Geodetic height in meters. Zero by default.
equatorialRadius	Equatorial radius of the reference spheroid in meters. The default value is the IAU 2009/2012 equatorial radius of Earth: 6,378,136.6 meters.
flattening	Flattening of the reference spheroid. The default value is the IERS 2010 flattening of Earth: 1/298.25642.
regionalCenter	Geocentric rectangular coordinates of the center of the regional spheroid, in meters. A zero 3-D vector (that is, the geocenter) by default.
useCIO	Whether to compute CIO-based or equinox-based topocentric coordinates. False (equinox-based) by default.

Typically, the values used should be WGS84 coordinates (for example, as distributed by GPS) or ITRF coordinates (both systems close together at the level of a few centimeters).

Geographic longitudes grow eastward, so longitudes are positive to the east and negative to the west of the central meridian. For ease of calculation, this constructor converts longitudes to the [0°,360°) range.

If out-of-range coordinates are specified, their values will be constrained to their proper ranges: longitude to [0°,360°), and latitude to [-90°,+90°].

Definition at line 280 of file Position.h.

Member Function Documentation

operator=() [1/2]

ObserverPosition& pcl::ObserverPosition::operator= ( const ObserverPosition &  )

default

Copy assignment operator.

operator=() [2/2]

ObserverPosition& pcl::ObserverPosition::operator= ( ObserverPosition &&  )

default

Move assignment operator.

Member Data Documentation

ea_eq_radius_IAU2009

constexpr static double pcl::ObserverPosition::ea_eq_radius_IAU2009 = 6378136.6

staticconstexpr

Equatorial radius of Earth in meters, IAU 2009/2012.

Definition at line 207 of file Position.h.

ea_flattening_IERS2010

constexpr static double pcl::ObserverPosition::ea_flattening_IERS2010 = 1/298.25642

staticconstexpr

Flattening of Earth, IERS 2010.

Definition at line 212 of file Position.h.

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

• Position.h