MAP::LonLatT< MagnificationT > Class Template Reference

This class maintains a coordinate in latitude / longitude, and provides conversion function to and from other coordinate systems. More...

#include <MAP/LonLat.h>

List of all members.

Public Member Functions
	LonLatT ()
	LonLatT (const double _lon, const double _lat)
	LonLatT (const PixelCoordinateT< MagnificationT > &px)
bool	isValid () const
const PixelCoordinateT < MagnificationT >	toPixels (MagnificationT magnification) const
void	toMeters (double &meterX, double &meterY) const
Static Public Member Functions
static LonLatT< MagnificationT >	fromMeters (const double meterX, const double meterY)
Public Attributes
double	lon
double	lat

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Detailed Description

template<typename MagnificationT>
class MAP::LonLatT< MagnificationT >

This class maintains a coordinate in latitude / longitude, and provides conversion function to and from other coordinate systems.

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Constructor & Destructor Documentation

template<typename MagnificationT>

MAP::LonLatT< MagnificationT >::LonLatT

(

)

[inline]

Creates a LonLat initialized to (0, 0).

template<typename MagnificationT>

MAP::LonLatT< MagnificationT >::LonLatT	(	const double	_lon,
		const double	_lat
	)		[inline]

Creates a LonLat.

template<typename MagnificationT>

MAP::LonLatT< MagnificationT >::LonLatT

(

const PixelCoordinateT< MagnificationT > &

px

)

[inline]

Creates a LonLat from thr given global pixel coordinate.

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Member Function Documentation

template<typename MagnificationT>

static LonLatT<MagnificationT> MAP::LonLatT< MagnificationT >::fromMeters	(	const double	meterX,
		const double	meterY
	)		[inline, static]

Creates a LonLat from the given global meter coordinates.

template<typename MagnificationT>

bool MAP::LonLatT< MagnificationT >::isValid

(

)

const [inline]

template<typename MagnificationT>

const PixelCoordinateT<MagnificationT> MAP::LonLatT< MagnificationT >::toPixels

(

MagnificationT

magnification

)

const [inline]

Converts this to global pixel coordinates. Projection is assumed to be spherical Mercator (as opposed to ellipsoidal). This results in a slight Y-axis error. Spherical Mercator is chosen for compatibility with online tile servers such as Google Maps and Microsoft Virtual Earth.

template<typename MagnificationT>

void MAP::LonLatT< MagnificationT >::toMeters	(	double &	meterX,
		double &	meterY
	)		const [inline]

Convert this to meters.

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Member Data Documentation

template<typename MagnificationT>

double MAP::LonLatT< MagnificationT >::lon

Longitude

Referenced by MAP::LonLatT< MagnificationType >::fromMeters().

template<typename MagnificationT>

double MAP::LonLatT< MagnificationT >::lat

Latitude

Referenced by MAP::LonLatT< MagnificationType >::fromMeters().