QgsTileMatrix Class Reference

Defines a matrix of tiles for a single zoom level: it is defined by its size (width * height) and map extent that it covers. More...

#include <qgstiles.h>

Public Member Functions
QgsRectangle	extent () const
	Returns extent of the tile matrix. 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	fromWebMercator (int mZoomLevel)
	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 102 of file qgstiles.h.

Member Function Documentation

extent()

QgsRectangle QgsTileMatrix::extent ( ) const

inline

Returns extent of the tile matrix.

Definition at line 119 of file qgstiles.h.

fromWebMercator()

QgsTileMatrix QgsTileMatrix::fromWebMercator ( int  mZoomLevel )

static

Returns a tile matrix for the usual web mercator.

Definition at line 20 of file qgstiles.cpp.

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 78 of file qgstiles.cpp.

matrixHeight()

int QgsTileMatrix::matrixHeight ( ) const

inline

Returns number of rows of the tile matrix.

Definition at line 116 of file qgstiles.h.

matrixWidth()

int QgsTileMatrix::matrixWidth ( ) const

inline

Returns number of columns of the tile matrix.

Definition at line 113 of file qgstiles.h.

scale()

double QgsTileMatrix::scale ( ) const

inline

Returns scale denominator of the tile matrix.

Definition at line 122 of file qgstiles.h.

tileCenter()

QgsPointXY QgsTileMatrix::tileCenter

(

QgsTileXYZ

id

)

const

Returns center of the given tile in this matrix.

Definition at line 47 of file qgstiles.cpp.

tileExtent()

QgsRectangle QgsTileMatrix::tileExtent

(

QgsTileXYZ

id

)

const

Returns extent of the given tile in this matrix.

Definition at line 38 of file qgstiles.cpp.

tileRangeFromExtent()

QgsTileRange QgsTileMatrix::tileRangeFromExtent

(

const QgsRectangle &

mExtent

)

Returns tile range that fully covers the given extent.

Definition at line 54 of file qgstiles.cpp.

zoomLevel()

int QgsTileMatrix::zoomLevel ( ) const

inline

Returns zoom level of the tile matrix.

Definition at line 110 of file qgstiles.h.

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

• /build/qgis-3.16.0+99unstable/src/core/qgstiles.h
• /build/qgis-3.16.0+99unstable/src/core/qgstiles.cpp