OpenLayers

Class: XYZ

ol.source.XYZ 


import XYZ from 'ol/source/xyz';

Layer source for tile data with URLs in a set XYZ format that are defined in a URL template. By default, this follows the widely-used Google grid where x 0 and y 0 are in the top left. Grids like TMS where x 0 and y 0 are in the bottom left can be used by using the {-y} placeholder in the URL template, so long as the source does not have a custom tile grid. In this case, ol.source.TileImage can be used with a tileUrlFunction such as:

tileUrlFunction: function(coordinate) { return 'http://mapserver.com/' + coordinate[0] + '/' + coordinate[1] + '/' + coordinate[2] + '.png'; }

new ol.source.XYZ(opt_options)

src/ol/source/xyz.js, line 30
Name Type Description
options

XYZ options.

Name Type Description
attributions ol.AttributionLike | undefined

Attributions.
cacheSize number | undefined

Cache size. Default is 2048.
crossOrigin null | string | undefined

The crossOrigin attribute for loaded images. Note that you must provide a crossOrigin value if you are using the WebGL renderer or 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.
logo string | olx.LogoOptions | undefined

Logo.
opaque boolean | undefined

Whether the layer is opaque.
projection ol.ProjectionLike

Projection. Default is EPSG:3857.
reprojectionErrorThreshold number | undefined

Maximum allowed reprojection error (in pixels). Default is 0.5. Higher values can increase reprojection performance, but decrease precision.
maxZoom number | undefined

Optional max zoom level. Default is 18.
minZoom number | undefined

Optional min zoom level. Default is 0.
tileGrid ol.tilegrid.TileGrid | undefined

Tile grid.
tileLoadFunction ol.TileLoadFunctionType | undefined

Optional function to load a tile given a URL. The default is

function(imageTile, src) {
  imageTile.getImage().src = src;
};
tilePixelRatio number | undefined

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 to 2. Default is 1.
tileSize number | ol.Size | undefined

The tile size used by the tile service. Default is [256, 256] pixels.
tileUrlFunction ol.TileUrlFunctionType | undefined

Optional function to get tile URL given a tile coordinate and the projection. Required if url or urls are not provided.
url string | undefined

URL template. Must include {x}, {y} or {-y}, and {z} placeholders. A {?-?} template pattern, for example subdomain{a-f}.domain.com, may be used instead of defining each one separately in the urls option.
urls Array.<string> | undefined

An array of URL templates.
wrapX boolean | undefined

Whether to wrap the world horizontally. Default is true.
transition number | undefined

Duration of the opacity transition for rendering. To disable the opacity transition, pass transition: 0.
Fires:

Subclasses

Extends

Methods

changed() inherited

src/ol/observable.js, line 58

Increases the revision counter and dispatches a 'change' event.

dispatchEvent(event) inherited

src/ol/observable.js, line 75

Dispatches an event and calls all listeners listening for events of this type. The event parameter can either be a string or an Object with a type property.

Name Type Description
event Object | ol.events.Event | string

Event object.

get(key){*} inherited

src/ol/object.js, line 101

Gets a value.

Name Type Description
key string

Key name.
Returns:
Value.

getAttributions(){Array.<ol.Attribution>} inherited

src/ol/source/source.js, line 144

Get the attributions of the source.

Returns:
Attributions.

getKeys(){Array.<string>} inherited

src/ol/object.js, line 115

Get a list of object property names.

Returns:
List of property names.

getLogo(){string|olx.LogoOptions|undefined} inherited

src/ol/source/source.js, line 163

Get the logo of the source.

Returns:
Logo.

getProjection(){ol.proj.Projection} inherited

src/ol/source/source.js, line 173

Get the projection of the source.

Returns:
Projection.

getProperties(){Object.<string, *>} inherited

src/ol/object.js, line 125

Get an object of all property names and values.

Returns:
Object.

getRevision(){number} inherited

src/ol/observable.js, line 84

Get the version number for this object. Each time the object is modified, its version number will be incremented.

Returns:
Revision.

getState(){ol.source.State} inherited

src/ol/source/source.js, line 190

Get the state of the source, see ol.source.State for possible states.

Returns:
State.

getTileGrid(){ol.tilegrid.TileGrid} inherited

src/ol/source/tile.js, line 207

Return the tile grid of the tile source.

Returns:
Tile grid.

getTileLoadFunction(){ol.TileLoadFunctionType} inherited

src/ol/source/urltile.js, line 87

Return the tile load function of the source.

Returns:
TileLoadFunction

getTileUrlFunction(){ol.TileUrlFunctionType} inherited

src/ol/source/urltile.js, line 97

Return the tile URL function of the source.

Returns:
TileUrlFunction

getUrls(){!Array.<string>|null} inherited

src/ol/source/urltile.js, line 109

Return the URLs used for this source. When a tileUrlFunction is used instead of url or urls, null will be returned.

Returns:
URLs.

on(type, listener, opt_this){ol.EventsKey|Array.<ol.EventsKey>} inherited

src/ol/observable.js, line 99

Listen for a certain type of event.

Name Type Description
type string | Array.<string>

The event type or array of event types.
listener function

The listener function.
this Object

The object to use as this in listener.
Returns:
Unique key for the listener. If called with an array of event types as the first argument, the return will be an array of keys.

once(type, listener, opt_this){ol.EventsKey|Array.<ol.EventsKey>} inherited

src/ol/observable.js, line 124

Listen once for a certain type of event.

Name Type Description
type string | Array.<string>

The event type or array of event types.
listener function

The listener function.
this Object

The object to use as this in listener.
Returns:
Unique key for the listener. If called with an array of event types as the first argument, the return will be an array of keys.

refresh() inherited

src/ol/source/source.js, line 207

Refreshes the source and finally dispatches a 'change' event.

set(key, value, opt_silent) inherited

src/ol/object.js, line 150

Sets a value.

Name Type Description
key string

Key name.
value *

Value.
silent boolean

Update without triggering an event.

setAttributions(attributions) inherited

src/ol/source/source.js, line 219

Set the attributions of the source.

Name Type Description
attributions ol.AttributionLike | undefined

Attributions. Can be passed as string, Array<string>, ol.Attribution2, or undefined.

setProperties(values, opt_silent) inherited

src/ol/object.js, line 170

Sets a collection of key-value pairs. Note that this changes any existing properties and adds new ones (it does not remove any existing properties).

Name Type Description
values Object.<string, *>

Values.
silent boolean

Update without triggering an event.

setRenderReprojectionEdges(render) inherited

src/ol/source/tileimage.js, line 330

Sets whether to render reprojection edges or not (usually for debugging).

Name Type Description
render boolean

Render the edges.

setTileGridForProjection(projection, tilegrid) inherited

src/ol/source/tileimage.js, line 355

Sets the tile grid to use when reprojecting the tiles to the given projection instead of the default tile grid for the projection.

This can be useful when the default tile grid cannot be created (e.g. projection has no extent defined) or for optimization reasons (custom tile size, resolutions, ...).

Name Type Description
projection ol.ProjectionLike

Projection.
tilegrid ol.tilegrid.TileGrid

Tile grid to use for the projection.

setTileLoadFunction(tileLoadFunction) inherited

src/ol/source/urltile.js, line 144

Set the tile load function of the source.

Name Type Description
tileLoadFunction ol.TileLoadFunctionType

Tile load function.

setTileUrlFunction(tileUrlFunction, opt_key) inherited

src/ol/source/urltile.js, line 157

Set the tile URL function of the source.

Name Type Description
tileUrlFunction ol.TileUrlFunctionType

Tile URL function.
key string

Optional new tile key for the source.

setUrl(url) inherited

src/ol/source/urltile.js, line 173

Set the URL to use for requests.

Name Type Description
url string

URL.

setUrls(urls) inherited

src/ol/source/urltile.js, line 186

Set the URLs to use for requests.

Name Type Description
urls Array.<string>

URLs.

un(type, listener, opt_this) inherited

src/ol/observable.js, line 147

Unlisten for a certain type of event.

Name Type Description
type string | Array.<string>

The event type or array of event types.
listener function

The listener function.
this Object

The object which was used as this by the listener.

unset(key, opt_silent) inherited

src/ol/object.js, line 184

Unsets a property.

Name Type Description
key string

Key name.
silent boolean

Unset without triggering an event.