QgsTileMatrix Class Reference

Defines a matrix of tiles for a single zoom level: it is defined by its size (width *. More...

#include <qgstiles.h>

Public Member Functions
QgsCoordinateReferenceSystem	crs () const
	Returns the authority identifier for the CRS of the tile matrix. More...
QgsRectangle	extent () const
	Returns extent of the tile matrix. More...
bool	isRootTileMatrix () const
	Returns the root status of the tile matrix (zoom level == 0) More...
QPointF	mapToTileCoordinates (const QgsPointXY &mapPoint) const
	Returns row/column coordinates (floating point number) from the given point in map coordinates. More...
int	matrixHeight () const
	Returns number of rows of the tile matrix. More...
int	matrixWidth () const
	Returns number of columns of the tile matrix. More...
double	scale () const
	Returns scale denominator of the tile matrix. More...
QgsPointXY	tileCenter (QgsTileXYZ id) const
	Returns center of the given tile in this matrix. More...
QgsRectangle	tileExtent (QgsTileXYZ id) const
	Returns extent of the given tile in this matrix. More...
QgsTileRange	tileRangeFromExtent (const QgsRectangle &mExtent)
	Returns tile range that fully covers the given extent. More...
int	zoomLevel () const
	Returns zoom level of the tile matrix. More...

Static Public Member Functions
static QgsTileMatrix	fromCustomDef (int zoomLevel, const QgsCoordinateReferenceSystem &crs, const QgsPointXY &z0TopLeftPoint, double z0Dimension, int z0MatrixWidth=1, int z0MatrixHeight=1)
	Returns a tile matrix for a specific CRS, top left point, zoom level 0 dimension in CRS units. More...
static QgsTileMatrix	fromTileMatrix (const int &zoomLevel, const QgsTileMatrix &tileMatrix)
	Returns a tile matrix based on another one. More...
static QgsTileMatrix	fromWebMercator (int zoomLevel)
	Returns a tile matrix for the usual web mercator. More...

Detailed Description

Defines a matrix of tiles for a single zoom level: it is defined by its size (width *.

height) and map extent that it covers.

Please note that we follow the XYZ convention of X/Y axes, i.e. top-left tile has [0,0] coordinate (which is different from TMS convention where bottom-left tile has [0,0] coordinate).

Since

QGIS 3.14

Definition at line 103 of file qgstiles.h.

Member Function Documentation

crs()

QgsCoordinateReferenceSystem QgsTileMatrix::crs ( ) const

inline

Returns the authority identifier for the CRS of the tile matrix.

Definition at line 119 of file qgstiles.h.

extent()

QgsRectangle QgsTileMatrix::extent ( ) const

inline

Returns extent of the tile matrix.

Definition at line 131 of file qgstiles.h.

fromCustomDef()

QgsTileMatrix QgsTileMatrix::fromCustomDef ( int  zoomLevel, const QgsCoordinateReferenceSystem &  crs, const QgsPointXY &  z0TopLeftPoint, double  z0Dimension, int  z0MatrixWidth = 1, int  z0MatrixHeight = 1  )

static

Returns a tile matrix for a specific CRS, top left point, zoom level 0 dimension in CRS units.

Definition at line 29 of file qgstiles.cpp.

fromTileMatrix()

QgsTileMatrix QgsTileMatrix::fromTileMatrix ( const int &  zoomLevel, const QgsTileMatrix &  tileMatrix  )

static

Returns a tile matrix based on another one.

Definition at line 60 of file qgstiles.cpp.

fromWebMercator()

QgsTileMatrix QgsTileMatrix::fromWebMercator ( int  zoomLevel )

static

Returns a tile matrix for the usual web mercator.

Definition at line 22 of file qgstiles.cpp.

isRootTileMatrix()

bool QgsTileMatrix::isRootTileMatrix ( ) const

inline

Returns the root status of the tile matrix (zoom level == 0)

Definition at line 149 of file qgstiles.h.

mapToTileCoordinates()

QPointF QgsTileMatrix::mapToTileCoordinates

(

const QgsPointXY &

mapPoint

)

const

Returns row/column coordinates (floating point number) from the given point in map coordinates.

Definition at line 120 of file qgstiles.cpp.

matrixHeight()

int QgsTileMatrix::matrixHeight ( ) const

inline

Returns number of rows of the tile matrix.

Definition at line 128 of file qgstiles.h.

matrixWidth()

int QgsTileMatrix::matrixWidth ( ) const

inline

Returns number of columns of the tile matrix.

Definition at line 125 of file qgstiles.h.

scale()

double QgsTileMatrix::scale ( ) const

inline

Returns scale denominator of the tile matrix.

Definition at line 134 of file qgstiles.h.

tileCenter()

QgsPointXY QgsTileMatrix::tileCenter

(

QgsTileXYZ

id

)

const

Returns center of the given tile in this matrix.

Definition at line 89 of file qgstiles.cpp.

tileExtent()

QgsRectangle QgsTileMatrix::tileExtent

(

QgsTileXYZ

id

)

const

Returns extent of the given tile in this matrix.

Definition at line 80 of file qgstiles.cpp.

tileRangeFromExtent()

QgsTileRange QgsTileMatrix::tileRangeFromExtent

(

const QgsRectangle &

mExtent

)

Returns tile range that fully covers the given extent.

Definition at line 96 of file qgstiles.cpp.

zoomLevel()

int QgsTileMatrix::zoomLevel ( ) const

inline

Returns zoom level of the tile matrix.

Definition at line 122 of file qgstiles.h.

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

• /build/qgis-3.22.4+99unstable/src/core/qgstiles.h
• /build/qgis-3.22.4+99unstable/src/core/qgstiles.cpp