Class: DataTileSource

ol/source/DataTile~DataTileSource 


import DataTileSource from 'ol/source/DataTile';

A source for typed array data tiles.

new DataTileSource(options)

source/DataTile.js, line 56
Name Type Description
options

Image tile options.

Name Type Description
loader module:ol/source/DataTile~Loader | undefined

Data loader. Called with z, x, and y tile coordinates. Returns data for a tile or a promise for the same.
attributions module:ol/source/Source~AttributionLike | undefined

Attributions.
attributionsCollapsible boolean (defaults to true)

Attributions are collapsible.
maxZoom number (defaults to 42)

Optional max zoom level. Not used if tileGrid is provided.
minZoom number (defaults to 0)

Optional min zoom level. Not used if tileGrid is provided.
tileSize number | module:ol/size~Size (defaults to [256, 256])

The pixel width and height of the source tiles. This may be different than the rendered pixel size if a tileGrid is provided.
gutter number (defaults to 0)

The size in pixels of the gutter around data tiles to ignore. This allows artifacts of rendering at tile edges to be ignored. Supported data should be wider and taller than the tile size by a value of 2 x gutter.
maxResolution number | undefined

Optional tile grid resolution at level zero. Not used if tileGrid is provided.
projection module:ol/proj~ProjectionLike (defaults to 'EPSG:3857')

Tile projection.
tileGrid module:ol/tilegrid/TileGrid~TileGrid | undefined

Tile grid.
opaque boolean (defaults to false)

Whether the layer is opaque.
state module:ol/source/Source~State | undefined

The source state.
tilePixelRatio number | undefined

Deprecated. To have tiles scaled, pass a tileSize representing the source tile size and a tileGrid with the desired rendered tile size.
wrapX boolean (defaults to false)

Render tiles beyond the antimeridian.
transition number | undefined

Transition time when fading in new tiles (in miliseconds).
bandCount number (defaults to 4)

Number of bands represented in the data.
interpolate boolean (defaults to false)

Use interpolated values when resampling. By default, the nearest neighbor is used when resampling.
Fires:

Subclasses

Extends

Methods

changed() inherited

Observable.js, line 68

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

clear() inherited

source/Tile.js, line 343

Remove all cached tiles from the source. The next render cycle will fetch new tiles.

dispatchEvent(event){boolean|undefined} inherited

events/Target.js, line 85

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 module:ol/events/Event~BaseEvent | string

Event object.
Returns:
false if anyone called preventDefault on the event object or if any of the listeners returned false.

get(key){*} inherited

Object.js, line 135

Gets a value.

Name Type Description
key string

Key name.
Returns:
Value.

getAttributions(){module:ol/source/Source~Attribution} inherited

source/Source.js, line 133

Get the attribution function for the source.

Returns:
Attribution function.

getAttributionsCollapsible(){boolean} inherited

source/Source.js, line 141
Returns:
Attributions are collapsible.

getKeys(){Array.<string>} inherited

Object.js, line 148

Get a list of object property names.

Returns:
List of property names.

getProjection(){module:ol/proj/Projection~Projection|null} inherited

source/Source.js, line 150

Get the projection of the source.

Returns:
Projection.

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

Object.js, line 157

Get an object of all property names and values.

Returns:
Object.

getRevision(){number} inherited

Observable.js, line 79

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

Returns:
Revision.

getState(){module:ol/source/Source~State} inherited

source/Source.js, line 174

Get the state of the source, see module:ol/source/Source~State for possible states.

Returns:
State.

getTileGrid(){module:ol/tilegrid/TileGrid~TileGrid|null} inherited

source/Tile.js, line 262

Return the tile grid of the tile source.

Returns:
Tile grid.

on(type, listener){module:ol/events~EventsKey|Array.<module:ol/events~EventsKey>} inherited

Observable.js, line 153

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.

once(type, listener){module:ol/events~EventsKey|Array.<module:ol/events~EventsKey>} inherited

Observable.js, line 165

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.

refresh() inherited

source/Source.js, line 196

Refreshes the source. The source will be cleared, and data from the server will be reloaded.

set(key, value, opt_silent) inherited

Object.js, line 207

Sets a value.

Name Type Description
key string

Key name.
value *

Value.
silent boolean | undefined

Update without triggering an event.

setAttributions(attributions) inherited

source/Source.js, line 207

Set the attributions of the source.

Name Type Description
attributions module:ol/source/Source~AttributionLike | undefined

Attributions. Can be passed as string, Array<string>, module:ol/source/Source~Attribution, or undefined.

setProperties(values, opt_silent) inherited

Object.js, line 227

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.

un(type, listener) inherited

Observable.js, line 174

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.

unset(key, opt_silent) inherited

Object.js, line 251

Unsets a property.

Name Type Description
key string

Key name.
silent boolean | undefined

Unset without triggering an event.