OnlineMapsProjection Class Reference

The base class of map projection. More...

Inheritance diagram for OnlineMapsProjection:

Public Member Functions
abstract void	CoordinatesToTile (double lng, double lat, int zoom, out double tx, out double ty)
	Converts geographic coordinates to tile coordinates. More...
abstract void	TileToCoordinates (double tx, double ty, int zoom, out double lng, out double lat)
	Converts tile coordinates to geographic coordinates. More...

Static Public Attributes
const double	DEG2RAD = Math.PI / 180
	Degrees-to-radians conversion constant. More...
const double	PI2 = Math.PI * 2
	PI * 2 More...
const double	PI4 = Math.PI * 4
	PI * 4 More...
const double	RAD2DEG = 180 / Math.PI
	Radians-to-degrees conversion constant. More...

Detailed Description

The base class of map projection.

Member Function Documentation

CoordinatesToTile()

abstract void OnlineMapsProjection.CoordinatesToTile ( double  lng, double  lat, int  zoom, out double  tx, out double  ty  )

pure virtual

Converts geographic coordinates to tile coordinates.

Parameters

lng	Longitude
lat	Latitude
zoom	Zoom
tx	Tile X
ty	Tile Y

Implemented in OnlineMapsProjectionWGS84, and OnlineMapsProjectionSphericalMercator.

TileToCoordinates()

abstract void OnlineMapsProjection.TileToCoordinates ( double  tx, double  ty, int  zoom, out double  lng, out double  lat  )

pure virtual

Converts tile coordinates to geographic coordinates.

Parameters

tx	Tile X
ty	Tile Y
zoom	Zoom
lng	Longitude
lat	Latitude

Implemented in OnlineMapsProjectionWGS84, and OnlineMapsProjectionSphericalMercator.

Member Data Documentation

DEG2RAD

const double OnlineMapsProjection.DEG2RAD = Math.PI / 180

static

Degrees-to-radians conversion constant.

PI2

const double OnlineMapsProjection.PI2 = Math.PI * 2

static

PI * 2

PI4

const double OnlineMapsProjection.PI4 = Math.PI * 4

static

PI * 4

RAD2DEG

const double OnlineMapsProjection.RAD2DEG = 180 / Math.PI

static

Radians-to-degrees conversion constant.