Detailed Description
The QGeoTiledMapRequest class represents a request for a map tile from a tile-based mapping service.
The tile is specified by a map type, a zoom level, a row and a column.
At a zoom level of z the world is represented as a 2^z by 2^z grid of tiles, and the row and column are relative to the grid of tiles for the zoom level of the request.
Member Function Documentation
QGeoTiledMapRequest::QGeoTiledMapRequest ()
Constructs a new tiled map request.
Constructs a new tiled map request.
At a zoom level of z the world is represented as a 2^z by 2^z grid of tiles.
This tiled map request represents a request for the tile at row row and column column at zoom level zoomLevel and type mapType.
The request will use connectivity mode connectivityMode when accessing the map data.
The rectangle that the tile occupies on the map at the maximum zoom level is also given as tileRect.
QGeoTiledMapRequest::QGeoTiledMapRequest ( const QGeoTiledMapRequest & other )
Constructs a tiled map request from the contents of other.
QGeoTiledMapRequest::~QGeoTiledMapRequest ()
Destroys this tiled map request.
int QGeoTiledMapRequest::column () const
Returns the column of the requested tile.
At a zoom level of z the world is represented as a 2^z by 2^z grid of tiles, and so the column will be between 0 and 2^z - 1.
Returns the connectivity mode of the tile request.
Returns the map type of the requested tile.
int QGeoTiledMapRequest::row () const
Returns the row of the requested tile.
At a zoom level of z the world is represented as a 2^z by 2^z grid of tiles, and so the row will be between 0 and 2^z - 1.
QRect QGeoTiledMapRequest::tileRect () const
Returns the rectangle that the tile covers on the map at the maximum zoon level.
At a zoom level of z the world is represented as a 2^z by 2^z grid of tiles. If m is the maximum zoom level and the tiles are t by t pixel squares, then the entire world could be viewed as a 2^m * t by 2^m * t pixel image.
The rectangle returned is specified relative to the pixel coordinates of the map at the maximum zoom level.
int QGeoTiledMapRequest::zoomLevel () const
Returns the zoom level of the requested tile.
The lower and upper bounds of the zoom level are set by the QGeoMappingManager that created this request.
QGeoTiledMapRequest & QGeoTiledMapRequest::operator= ( const QGeoTiledMapRequest & other )
Assigns other to this tiled map request and then returns a reference to this tiled map request.
bool QGeoTiledMapRequest::operator== ( const QGeoTiledMapRequest & other ) const
Returns with this tiled map request is equal to other.
