#include <EarthShape.h>

Public Member Functions
	EarthShape (const string &earthShape="WGS84")

virtual	~EarthShape ()

virtual int	class_size () const

double	getEarthRadius (const double *const v)

double	getEccentricitySqr () const

double	getEquatorialRadius () const

double	getGeoCentricLatitude (const double &lat)

double	getGeoGraphicLatitude (const double &lat)

double	getInverseFlattening () const

double	getLat (const double *const v)

double	getLatDegrees (const double *const v)

string	getLatLonString (const double *const v)

double	getLon (const double *const v)

double	getLonDegrees (const double *const v)

const string &	getShapeName () const

double *	getVector (const double &lat, const double &lon)

double *	getVector (const double &lat, const double &lon, double *v)

double *	getVectorDegrees (const double &lat, const double &lon)

double *	getVectorDegrees (const double &lat, const double &lon, double *v)

bool	isConstantRadius () const

bool	isSphere () const

void	setEarthShape (const string &earthShape)

Static Public Member Functions
static string	class_name ()

Constructor & Destructor Documentation

geotess::EarthShape::EarthShape ( const string & earthShape = "WGS84" )

inline

Define the shape of the Earth that is to be used to convert between geocentric and geographic latitude and between depth and radius. The default is WGS84.

SPHERE - Geocentric and geographic latitudes are identical and conversion between depth and radius assume the Earth is a sphere with constant radius of 6371 km.
GRS80 - Conversion between geographic and geocentric latitudes, and between depth and radius are performed using the parameters of the GRS80 ellipsoid.
GRS80_RCONST - Conversion between geographic and geocentric latitudes are performed using the parameters of the GRS80 ellipsoid. Conversions between depth and radius assume the Earth is a sphere with radius 6371.
WGS84 - Conversion between geographic and geocentric latitudes, and between depth and radius are performed using the parameters of the WGS84 ellipsoid.
WGS84_RCONST - Conversion between geographic and geocentric latitudes are performed using the parameters of the WGS84 ellipsoid. Conversions between depth and radius assume the Earth is a sphere with radius 6371.

Parameters

earthShape one of SPHERE, GRS80, GRS80_RCONST, WGS84, WGS84_RCONST

virtual geotess::EarthShape::~EarthShape ( )

inlinevirtual

Destructor.

Member Function Documentation

static string geotess::EarthShape::class_name ( )

inlinestatic

Returns the class name.

Returns: class name

virtual int geotess::EarthShape::class_size ( ) const

inlinevirtual

Returns the class size.

Returns: class size

double geotess::EarthShape::getEarthRadius ( const double *const v )

inline

Retrieve the radius of the Earth in km at the position specified by an Earth-centered unit vector. Uses the WGS84 ellipsoid.

Parameters

v	Earth-centered unit vector

Returns: radius of the Earth in km at specified position.

double geotess::EarthShape::getEccentricitySqr ( ) const

inline

double geotess::EarthShape::getEquatorialRadius ( ) const

inline

double geotess::EarthShape::getGeoCentricLatitude ( const double & lat )

inline

Return geocentric latitude given a geographic latitude

Parameters

lat	geographic latitude in radians

Returns: geocentric latitude in radians

double geotess::EarthShape::getGeoGraphicLatitude ( const double & lat )

inline

Return geographic latitude given a geocentric latitude

Parameters

lat	geocentric latitude in radians

Returns: geographic latitude in radians

double geotess::EarthShape::getInverseFlattening ( ) const

inline

double geotess::EarthShape::getLat ( const double *const v )

inline

Convert a 3-component unit vector to geographic latitude, in radians.

Parameters

v	3-component unit vector

Returns: geographic latitude in radians.

double geotess::EarthShape::getLatDegrees ( const double *const v )

inline

Convert a 3-component unit vector to geographic latitude, in degrees.

Parameters

v	3-component unit vector

Returns: geographic latitude in degrees.

string geotess::EarthShape::getLatLonString ( const double *const v )

inline

Parameters

v	unit vector to be converted to lat, lon string

Returns: a String of lat,lon in degrees formatted with "%10.6f %11.6f"

double geotess::EarthShape::getLon ( const double *const v )

inline

Convert a 3-component unit vector to a longitude, in radians.

Parameters

v	3 component unit vector

Returns: longitude in radians.

double geotess::EarthShape::getLonDegrees ( const double *const v )

inline

Convert a 3-component unit vector to a longitude, in degrees.

Parameters

v	3 component unit vector

Returns: longitude in degrees.

const string& geotess::EarthShape::getShapeName ( ) const

inline

double* geotess::EarthShape::getVector	(	const double &	lat,
		const double &	lon
	)

inline

Convert geographic lat, lon into a geocentric unit vector. The x-component points toward lat,lon = 0, 0. The y-component points toward lat,lon = 0, PI/2. The z-component points toward north pole.

Parameters

lat	geographic latitude in radians.
lon	longitude in radians.

Returns: 3 component unit vector.

double* geotess::EarthShape::getVector	(	const double &	lat,
		const double &	lon,
		double *	v
	)

inline

Convert geographic lat, lon into a geocentric unit vector. The x-component points toward lat,lon = 0, 0. The y-component points toward lat,lon = 0, PI/2 The z-component points toward north pole.

Parameters

lat	geographic latitude in radians.
lon	longitude in radians.
v	3-component unit vector.

Returns: a pointer to v

double* geotess::EarthShape::getVectorDegrees	(	const double &	lat,
		const double &	lon
	)

inline

Convert geographic lat, lon into a geocentric unit vector. The x-component points toward lat,lon = 0, 0. The y-component points toward lat,lon = 0, 90. The z-component points toward north pole.

Parameters

lat	geographic latitude in degrees.
lon	longitude in degrees.

Returns: 3 component unit vector.

double* geotess::EarthShape::getVectorDegrees	(	const double &	lat,
		const double &	lon,
		double *	v
	)

inline

Convert geographic lat, lon into a geocentric unit vector. The x-component points toward lat,lon = 0, 0. The y-component points toward lat,lon = 0, 90. The z-component points toward north pole.

Parameters

lat	geographic latitude in degrees.
lon	longitude in degrees.
v	3 component unit vector.

Returns: pointer to v

bool geotess::EarthShape::isConstantRadius ( ) const

inline

bool geotess::EarthShape::isSphere ( ) const

inline

void geotess::EarthShape::setEarthShape ( const string & earthShape )

inline

Define the shape of the Earth that is to be used to convert between geocentric and geographic latitude and between depth and radius. The default is WGS84.

SPHERE - Geocentric and geographic latitudes are identical and conversion between depth and radius assume the Earth is a sphere with constant radius of 6371 km.
GRS80 - Conversion between geographic and geocentric latitudes, and between depth and radius are performed using the parameters of the GRS80 ellipsoid.
GRS80_RCONST - Conversion between geographic and geocentric latitudes are performed using the parameters of the GRS80 ellipsoid. Conversions between depth and radius assume the Earth is a sphere with radius 6371.
WGS84 - Conversion between geographic and geocentric latitudes, and between depth and radius are performed using the parameters of the WGS84 ellipsoid.
WGS84_RCONST - Conversion between geographic and geocentric latitudes are performed using the parameters of the WGS84 ellipsoid. Conversions between depth and radius assume the Earth is a sphere with radius 6371.
IERS2003 - Conversion between geographic and geocentric latitudes, and between depth and radius are performed using the parameters of the IERS2003 ellipsoid.
IERS2003_RCONST - Conversion between geographic and geocentric latitudes are performed using the parameters of the IERS2003 ellipsoid. Conversions between depth and radius assume the Earth is a sphere with radius 6371.

Parameters

earthShape one of SPHERE, GRS80, GRS80_RCONST, WGS84, WGS84_RCONST, IERS2003, IERS2003_RCONST

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

include/EarthShape.h

Public Member Functions

Static Public Member Functions

Constructor & Destructor Documentation

Member Function Documentation