-
Name Type Description attributions
AttributionLike | undefined Attributions.
attributionsCollapsible
boolean (defaults to true) Attributions are collapsible.
cacheSize
number | undefined Deprecated. Use the cacheSize option on the layer instead.
crossOrigin
null | string | undefined 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.interpolate
boolean (defaults to true) Use interpolated values when resampling. By default, linear interpolation is used when resampling. Set to false to use the nearest neighbor instead.
projection
ProjectionLike | undefined Projection. Default is the view projection.
reprojectionErrorThreshold
number (defaults to 0.5) Maximum allowed reprojection error (in pixels). Higher values can increase reprojection performance, but decrease precision.
state
State | undefined Source state.
tileClass
Class<ImageTile> | undefined Class used to instantiate image tiles. Default is
ImageTile
.tileGrid
TileGrid | undefined Tile grid.
tileLoadFunction
LoadFunction | undefined Optional function to load a tile given a URL. The default is
function(imageTile, src) { imageTile.getImage().src = src; };
tilePixelRatio
number (defaults to 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
.tileUrlFunction
UrlFunction | undefined Deprecated. Use an ImageTile source and provide a function for the url option instead.
url
string | undefined 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> | undefined An array of URL templates.
wrapX
boolean | undefined Whether to wrap the world horizontally. The default, is to request out-of-bounds tiles from the server. When set to
false
, only one world will be rendered. When set totrue
, tiles will be requested for one world only, but they will be wrapped horizontally to render multiple worlds.transition
number | undefined Duration of the opacity transition for rendering. To disable the opacity transition, pass
transition: 0
.key
string | undefined Optional tile key for proper cache fetching
zDirection
number | NearestDirectionFunction (defaults to 0) Choose whether to use tiles with a higher or lower zoom level when between integer zoom levels. See
getZForResolution
.- Deprecated
- Use the ol/source/ImageTile.js instead.
Fires:
-
change
(BaseEvent) - Generic change event. Triggered when the revision counter is increased. -
error
(BaseEvent) - Generic error event. Triggered when an error occurs. -
propertychange
(ObjectEvent) - Triggered when a property is changed. -
tileloadend
(TileSourceEvent) - Triggered when a tile finishes loading, either when its data is loaded, or when loading was aborted because the tile is no longer needed. -
tileloaderror
(TileSourceEvent) - Triggered if tile loading results in an error. Note that this is not the right place to re-fetch tiles. Seeload
for details. -
tileloadstart
(TileSourceEvent) - Triggered when a tile starts loading.
Subclasses
Extends
Methods
-
Increases the revision counter and dispatches a 'change' event.
-
Remove all cached reprojected tiles from the source. The next render cycle will create new tiles.
-
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
BaseEvent | string Event object.
Returns:
false
if anyone called preventDefault on the event object or if any of the listeners returned false.
-
Gets a value.
Name Type Description key
string Key name.
Returns:
Value.
-
Get the attribution function for the source.
Returns:
Attribution function.
-
Returns:
Attributions are collapsible.
-
Get a list of object property names.
Returns:
List of property names.
-
Get the projection of the source.
Returns:
Projection.
-
Get an object of all property names and values.
Returns:
Object.
-
Get the version number for this object. Each time the object is modified, its version number will be incremented.
Returns:
Revision.
-
Get the state of the source, see
State
for possible states.Returns:
State.
-
Return the tile grid of the tile source.
Returns:
Tile grid.
-
Deprecated. Use an ImageTile source instead. Return the tile load function of the source.
Returns:
TileLoadFunction
-
Deprecated. Use an ImageTile source instead. Return the tile URL function of the source.
Returns:
TileUrlFunction
-
Deprecated. Use an ImageTile source instead. Return the URLs used for this source. When a tileUrlFunction is used instead of url or urls, null will be returned.
Returns:
URLs.
-
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.
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.
-
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.
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.
-
Sets a value.
Name Type Description key
string Key name.
value
* Value.
silent
boolean | undefined Update without triggering an event.
-
Set the attributions of the source.
Name Type Description attributions
AttributionLike | undefined Attributions. Can be passed as
string
,Array<string>
,Attribution
, orundefined
. -
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 | undefined Update without triggering an event.
-
Sets whether to render reprojection edges or not (usually for debugging).
Name Type Description render
boolean Render the edges.
-
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
ProjectionLike Projection.
tilegrid
TileGrid Tile grid to use for the projection.
-
Deprecated. Use an ImageTile source instead. Set the tile load function of the source.
Name Type Description tileLoadFunction
LoadFunction Tile load function.
-
Deprecated. Use an ImageTile source instead. Set the tile URL function of the source.
Name Type Description tileUrlFunction
UrlFunction Tile URL function.
key
string | undefined Optional new tile key for the source.
-
Set the URL to use for requests.
Name Type Description url
string URL.
-
Deprecated. Use an ImageTile source instead. Set the URLs to use for requests.
Name Type Description urls
Array.<string> URLs.
-
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.
-
Unsets a property.
Name Type Description key
string Key name.
silent
boolean | undefined Unset without triggering an event.