Classes
Type Definitions
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Options{Object}
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Properties:
Name Type Argument Default Description attributionsmodule:ol/source/Source~AttributionLike <optional>
Attributions.
attributionsCollapsibleboolean <optional>
true Attributions are collapsible.
cacheSizenumber <optional>
Initial tile cache size. Will auto-grow to hold at least the number of tiles in the viewport.
crossOriginnull | string <optional>
The
crossOriginattribute for loaded images. Note that you must provide acrossOriginvalue 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.imageSmoothingboolean <optional>
true Enable image smoothing.
opaqueboolean <optional>
false Whether the layer is opaque.
projectionmodule:ol/proj~ProjectionLike <optional>
'EPSG:3857' Projection.
reprojectionErrorThresholdnumber <optional>
0.5 Maximum allowed reprojection error (in pixels). Higher values can increase reprojection performance, but decrease precision.
maxZoomnumber <optional>
42 Optional max zoom level. Not used if
tileGridis provided.minZoomnumber <optional>
0 Optional min zoom level. Not used if
tileGridis provided.maxResolutionnumber <optional>
Optional tile grid resolution at level zero. Not used if
tileGridis provided.tileGridmodule:ol/tilegrid/TileGrid~TileGrid <optional>
Tile grid.
tileLoadFunctionmodule:ol/Tile~LoadFunction <optional>
Optional function to load a tile given a URL. The default is
function(imageTile, src) { imageTile.getImage().src = src; };tilePixelRationumber <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
tilePixelRatioshould be set to2.tileSizenumber | module:ol/size~Size <optional>
[256, 256] The tile size used by the tile service. Not used if
tileGridis provided.tileUrlFunctionmodule:ol/Tile~UrlFunction <optional>
Optional function to get tile URL given a tile coordinate and the projection. Required if
urlorurlsare not provided.urlstring <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 theurlsoption.urlsArray.<string> <optional>
An array of URL templates.
wrapXboolean <optional>
true Whether to wrap the world horizontally.
transitionnumber <optional>
250 Duration of the opacity transition for rendering. To disable the opacity transition, pass
transition: 0.zDirectionnumber <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.
OpenLayers