te::srs::Datum Class Reference

A geodetic datum defines a reference to measure Earth's surface. More...

#include <Datum.h>

Public Member Functions
	Datum (const std::string &name="", Ellipsoid *ellps=0)
	Constructor with parameters. More...
const Ellipsoid *	getEllipsoid () const
	Returns the Ellipsoid associated to the Datum. More...
const std::string &	getName () const
	Returns the Datum name. More...
const std::vector< double > &	getToWGS84Params () const
	Returns the WGS84 shifting parameters. More...
std::string	getWKT () const
	Returns a WKT string that represent the Datum. More...
void	setEllipsoid (Ellipsoid *ellps)
	Sets the Ellipsoid associated to the Datum. More...
void	setName (const std::string &name)
	Sets the Datum name. More...
void	setToWGS84Params (const std::vector< double > &params)
	Sets the Datum shifting parameters relative to WGS84. More...
	~Datum ()
	Destructor. More...

Private Attributes
Ellipsoid *	m_ellipsoid
	Reference ellipsoid. More...
std::string	m_name
	Datum name. More...
std::vector< double >	m_towgs84
	To store shifting parametes necessary to execute Datum shifting to a WGS84 Datum. More...

Detailed Description

A geodetic datum defines a reference to measure Earth's surface.

Planimetric datum parameters are used for defining geodetic coordinates, which are necessary to establish a map projection system.

Definition at line 35 of file Datum.h.

Constructor & Destructor Documentation

Datum()

te::srs::Datum::Datum	(	const std::string &	name = "",
		Ellipsoid *	ellps = 0
	)

Constructor with parameters.

Parameters

name	Datum name (default empty string)..
ellps	Pointer to the Ellipsoid associated to the Datum. Default null. Class takes the pointer ownership.

~Datum()

te::srs::Datum::~Datum

(

)

Destructor.

Member Function Documentation

getEllipsoid()

const Ellipsoid* te::srs::Datum::getEllipsoid

(

)

const

Returns the Ellipsoid associated to the Datum.

getName()

const std::string& te::srs::Datum::getName

(

)

const

Returns the Datum name.

getToWGS84Params()

const std::vector<double>& te::srs::Datum::getToWGS84Params

(

)

const

Returns the WGS84 shifting parameters.

getWKT()

std::string te::srs::Datum::getWKT

(

)

const

Returns a WKT string that represent the Datum.

setEllipsoid()

void te::srs::Datum::setEllipsoid

(

Ellipsoid *

ellps

)

Sets the Ellipsoid associated to the Datum.

Parameters

ellps

Pointer to the ellipsoid. Do not pass null. Class takes the pointer ownership.

setName()

void te::srs::Datum::setName

(

const std::string &

name

)

Sets the Datum name.

Parameters

name	The Datum name.

setToWGS84Params()

void te::srs::Datum::setToWGS84Params

(

const std::vector< double > &

params

)

Sets the Datum shifting parameters relative to WGS84.

This indicates a list of up to 7 Bursa Wolf transformation parameters. These parameters can be used to approximate a transformation from a given datum to the WGS84.

Parameters

params

A vector of shifting parameters.

Member Data Documentation

m_ellipsoid

Ellipsoid* te::srs::Datum::m_ellipsoid

private

Reference ellipsoid.

Definition at line 86 of file Datum.h.

m_name

std::string te::srs::Datum::m_name

private

Datum name.

Definition at line 85 of file Datum.h.

m_towgs84

std::vector<double> te::srs::Datum::m_towgs84

private

To store shifting parametes necessary to execute Datum shifting to a WGS84 Datum.

Definition at line 87 of file Datum.h.

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

• /home/castejon/castejon_files/develop/terralib5/git_master/src/terralib/srs/Datum.h