C# Class Mapstache.TileSystemHelper

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Méthodes publiques

Méthode	Description
GroundResolution ( double latitude, int levelOfDetail ) : double	Determines the ground resolution (in meters per pixel) at a specified latitude and level of detail.
LatLongToPixelXY ( PointF lonlat, int levelOfDetail ) : Point
LatLongToPixelXY ( double latitude, double longitude, int levelOfDetail, int &pixelX, int &pixelY ) : void	Converts a point from latitude/longitude WGS-84 coordinates (in degrees) into pixel XY coordinates at a specified level of detail.
MapScale ( double latitude, int levelOfDetail, int screenDpi ) : double	Determines the map scale at a specified latitude, level of detail, and screen resolution.
MapSize ( int levelOfDetail ) : uint	Determines the map width and height (in pixels) at a specified level of detail.
PixelXYToLatLong ( Point pixel, int levelOfDetail ) : PointF
PixelXYToLatLong ( int pixelX, int pixelY, int levelOfDetail, double &latitude, double &longitude ) : void	Converts a pixel from pixel XY coordinates at a specified level of detail into latitude/longitude WGS-84 coordinates (in degrees).
QuadKeyToTileXY ( string quadKey, int &tileX, int &tileY, int &levelOfDetail ) : void	Converts a QuadKey into tile XY coordinates.
QuadKeyToTmsTileXY ( string quadKey, int &tileX, int &tileY, int &levelOfDetail ) : void
TileBounds ( int tileX, int tileY, int levelOfDetail ) : Rectangle
TileXYToPixelXY ( Point tile ) : Point
TileXYToPixelXY ( int tileX, int tileY, int &pixelX, int &pixelY ) : void	Converts tile XY coordinates into pixel XY coordinates of the upper-left pixel of the specified tile.
TileXYToQuadKey ( int tileX, int tileY, int levelOfDetail ) : string	Converts tile XY coordinates into a QuadKey at a specified level of detail.

Private Methods

Méthode	Description
Clip ( double n, double minValue, double maxValue ) : double	Clips a number to the specified minimum and maximum values.

Method Details

GroundResolution() public static méthode

Determines the ground resolution (in meters per pixel) at a specified latitude and level of detail.

public static GroundResolution ( double latitude, int levelOfDetail ) : double
latitude	double	Latitude (in degrees) at which to measure the /// ground resolution.
levelOfDetail	int	Level of detail, from 1 (lowest detail) /// to 23 (highest detail).
Résultat	double

LatLongToPixelXY() public static méthode

public static LatLongToPixelXY ( PointF lonlat, int levelOfDetail ) : Point
lonlat	System.Drawing.PointF
levelOfDetail	int
Résultat	Point

LatLongToPixelXY() public static méthode

Converts a point from latitude/longitude WGS-84 coordinates (in degrees) into pixel XY coordinates at a specified level of detail.

public static LatLongToPixelXY ( double latitude, double longitude, int levelOfDetail, int &pixelX, int &pixelY ) : void
latitude	double	Latitude of the point, in degrees.
longitude	double	Longitude of the point, in degrees.
levelOfDetail	int	Level of detail, from 1 (lowest detail) /// to 23 (highest detail).
pixelX	int	Output parameter receiving the X coordinate in pixels.
pixelY	int	Output parameter receiving the Y coordinate in pixels.
Résultat	void

MapScale() public static méthode

Determines the map scale at a specified latitude, level of detail, and screen resolution.

public static MapScale ( double latitude, int levelOfDetail, int screenDpi ) : double
latitude	double	Latitude (in degrees) at which to measure the /// map scale.
levelOfDetail	int	Level of detail, from 1 (lowest detail) /// to 23 (highest detail).
screenDpi	int	Resolution of the screen, in dots per inch.
Résultat	double

MapSize() public static méthode

Determines the map width and height (in pixels) at a specified level of detail.

public static MapSize ( int levelOfDetail ) : uint
levelOfDetail	int	Level of detail, from 1 (lowest detail) /// to 23 (highest detail).
Résultat	uint

PixelXYToLatLong() public static méthode

public static PixelXYToLatLong ( Point pixel, int levelOfDetail ) : PointF
pixel	Point
levelOfDetail	int
Résultat	System.Drawing.PointF

PixelXYToLatLong() public static méthode

Converts a pixel from pixel XY coordinates at a specified level of detail into latitude/longitude WGS-84 coordinates (in degrees).

public static PixelXYToLatLong ( int pixelX, int pixelY, int levelOfDetail, double &latitude, double &longitude ) : void
pixelX	int	X coordinate of the point, in pixels.
pixelY	int	Y coordinates of the point, in pixels.
levelOfDetail	int	Level of detail, from 1 (lowest detail) /// to 23 (highest detail).
latitude	double	Output parameter receiving the latitude in degrees.
longitude	double	Output parameter receiving the longitude in degrees.
Résultat	void

QuadKeyToTileXY() public static méthode

Converts a QuadKey into tile XY coordinates.

public static QuadKeyToTileXY ( string quadKey, int &tileX, int &tileY, int &levelOfDetail ) : void
quadKey	string	QuadKey of the tile.
tileX	int	Output parameter receiving the tile X coordinate.
tileY	int	Output parameter receiving the tile Y coordinate.
levelOfDetail	int	Output parameter receiving the level of detail.
Résultat	void

QuadKeyToTmsTileXY() public static méthode

public static QuadKeyToTmsTileXY ( string quadKey, int &tileX, int &tileY, int &levelOfDetail ) : void
quadKey	string
tileX	int
tileY	int
levelOfDetail	int
Résultat	void

TileBounds() public static méthode

public static TileBounds ( int tileX, int tileY, int levelOfDetail ) : Rectangle
tileX	int
tileY	int
levelOfDetail	int
Résultat	System.Drawing.Rectangle

TileXYToPixelXY() public static méthode

public static TileXYToPixelXY ( Point tile ) : Point
tile	Point
Résultat	Point

TileXYToPixelXY() public static méthode

Converts tile XY coordinates into pixel XY coordinates of the upper-left pixel of the specified tile.

public static TileXYToPixelXY ( int tileX, int tileY, int &pixelX, int &pixelY ) : void
tileX	int	Tile X coordinate.
tileY	int	Tile Y coordinate.
pixelX	int	Output parameter receiving the pixel X coordinate.
pixelY	int	Output parameter receiving the pixel Y coordinate.
Résultat	void

TileXYToQuadKey() public static méthode

Converts tile XY coordinates into a QuadKey at a specified level of detail.

public static TileXYToQuadKey ( int tileX, int tileY, int levelOfDetail ) : string
tileX	int	Tile X coordinate.
tileY	int	Tile Y coordinate.
levelOfDetail	int	Level of detail, from 1 (lowest detail) /// to 23 (highest detail).
Résultat	string