Classes
Type Definitions
-
Options{Object}
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Properties:
Name Type Argument Default Description attributions
module:ol/source/Source~AttributionLike <optional>
Attributions.
attributionsCollapsible
boolean <optional>
true Attributions are collapsible.
cacheSize
number <optional>
Initial tile cache size. Will auto-grow to hold at least the number of tiles in the viewport.
crossOrigin
null | string <optional>
The
crossOrigin
attribute for loaded images. Note that you must provide acrossOrigin
value if you want to access pixel data with the Canvas renderer. See https://developer.mozilla.org/en-US/docs/Web/HTML/CORS_enabled_image for more detail.imageSmoothing
boolean <optional>
true Enable image smoothing.
opaque
boolean <optional>
false Whether the layer is opaque.
projection
module:ol/proj~ProjectionLike <optional>
'EPSG:3857' Projection.
reprojectionErrorThreshold
number <optional>
0.5 Maximum allowed reprojection error (in pixels). Higher values can increase reprojection performance, but decrease precision.
maxZoom
number <optional>
42 Optional max zoom level. Not used if
tileGrid
is provided.minZoom
number <optional>
0 Optional min zoom level. Not used if
tileGrid
is provided.maxResolution
number <optional>
Optional tile grid resolution at level zero. Not used if
tileGrid
is provided.tileGrid
module:ol/tilegrid/TileGrid~TileGrid <optional>
Tile grid.
tileLoadFunction
module:ol/Tile~LoadFunction <optional>
Optional function to load a tile given a URL. The default is
function(imageTile, src) { imageTile.getImage().src = src; };
tilePixelRatio
number <optional>
1 The pixel ratio used by the tile service. For example, if the tile service advertizes 256px by 256px tiles but actually sends 512px by 512px images (for retina/hidpi devices) then
tilePixelRatio
should be set to2
.tileSize
number | module:ol/size~Size <optional>
[256, 256] The tile size used by the tile service. Not used if
tileGrid
is provided.tileUrlFunction
module:ol/Tile~UrlFunction <optional>
Optional function to get tile URL given a tile coordinate and the projection. Required if
url
orurls
are not provided.url
string <optional>
URL template. Must include
{x}
,{y}
or{-y}
, and{z}
placeholders. A{?-?}
template pattern, for examplesubdomain{a-f}.domain.com
, may be used instead of defining each one separately in theurls
option.urls
Array.<string> <optional>
An array of URL templates.
wrapX
boolean <optional>
true Whether to wrap the world horizontally.
transition
number <optional>
250 Duration of the opacity transition for rendering. To disable the opacity transition, pass
transition: 0
.zDirection
number <optional>
0 Indicate which resolution should be used by a renderer if the view resolution does not match any resolution of the tile source. If 0, the nearest resolution will be used. If 1, the nearest lower resolution will be used. If -1, the nearest higher resolution will be used.