Module: ol/tilegrid/TileGrid

Classes

TileGrid

Type Definitions

Options{Object}

Properties:

Name	Type	Argument	Default	Description
extent	Extent	<optional>		Extent for the tile grid. No tiles outside this extent will be requested by TileSource sources. When no origin or origins are configured, the origin will be set to the top-left corner of the extent.
minZoom	number	<optional>	0	Minimum zoom.
origin	Coordinate	<optional>		The tile grid origin, i.e. where the x and y axes meet ([z, 0, 0]). Tile coordinates increase left to right and downwards. If not specified, extent or origins must be provided.
origins	Array<Coordinate>	<optional>		Tile grid origins, i.e. where the x and y axes meet ([z, 0, 0]), for each zoom level. If given, the array length should match the length of the resolutions array, i.e. each resolution can have a different origin. Tile coordinates increase left to right and downwards. If not specified, extent or origin must be provided.
resolutions	Array.<number>			Resolutions. The array index of each resolution needs to match the zoom level. This means that even if a minZoom is configured, the resolutions array will have a length of maxZoom + 1.
sizes	Array<Size>	<optional>		Number of tile rows and columns of the grid for each zoom level. If specified the values define each zoom level's extent together with the origin or origins. A grid extent can be configured in addition, and will further limit the extent for which tile requests are made by sources. If the bottom-left corner of an extent is used as origin or origins, then the y value must be negative because OpenLayers tile coordinates use the top left as the origin.
tileSize	number | Size	<optional>		Tile size. Default is [256, 256].
tileSizes	Array.<(number|module:ol/size~Size)>	<optional>		Tile sizes. If given, the array length should match the length of the resolutions array, i.e. each resolution can have a different tile size.