MAP::LonLat Class Reference

#include <MAP/LonLat.h>

List of all members.

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Detailed Description

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

Public Member Functions
	LonLat ()
	LonLat (const double _lon, const double _lat)
	LonLat (const PixelCoordinate &px)
const PixelCoordinate	toPixels (int magnification) const
void	toMeters (double &meterX, double &meterY) const
Static Public Member Functions
static LonLat	fromMeters (const double meterX, const double meterY)
Public Attributes
double	lon
double	lat

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Constructor & Destructor Documentation

MAP::LonLat::LonLat (   )  [inline]

Creates a LonLat initialized to (0, 0).

MAP::LonLat::LonLat (  const double  _lon, const double  _lat )  [inline]

Creates a LonLat.

MAP::LonLat::LonLat (  const PixelCoordinate &  px  )  [inline]

Creates a LonLat from thr given global pixel coordinate.

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Member Function Documentation

static LonLat MAP::LonLat::fromMeters (  const double  meterX, const double  meterY )  [inline, static]

Creates a LonLat from the given global meter coordinates.

const PixelCoordinate MAP::LonLat::toPixels (  int  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.

void MAP::LonLat::toMeters (  double &  meterX, double &  meterY )  const [inline]

Convert this to meters.

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Member Data Documentation

double MAP::LonLat::lon

Longitude

double MAP::LonLat::lat

Latitude

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