Class: CanvasTileLayerRenderer

ol/renderer/canvas/TileLayer~CanvasTileLayerRenderer 


import CanvasTileLayerRenderer from 'ol/renderer/canvas/TileLayer.js';

Canvas renderer for tile layers.

new CanvasTileLayerRenderer(tileLayer, options)

renderer/canvas/TileLayer.js, line 119
Name Type Description
tileLayer LayerType

Tile layer.
options

Options.

Name Type Description
cacheSize number (defaults to 512)

The cache size.
Fires:
  • change (BaseEvent) - Generic change event. Triggered when the revision counter is increased.
  • error (BaseEvent) - Generic error event. Triggered when an error occurs.

Subclasses

Extends

Methods

changed() inherited

Observable.js, line 68

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

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 BaseEvent | string

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

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.

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

Observable.js, line 152

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){EventsKey | Array<EventsKey>} inherited

Observable.js, line 164

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.

un(type, listener) inherited

Observable.js, line 173

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.