OpenLayers 3 API Documentation

Class: DoubleClickZoom

ol.interaction.DoubleClickZoom

Allows the user to zoom by double-clicking on the map.

new ol.interaction.DoubleClickZoom(opt_options) experimental

src/ol/interaction/doubleclickzoominteraction.js, line 21
Name Type Description
options optional

Options.

Name Type Description
duration number | undefined optional

Animation duration in milliseconds. Default is 250.
delta number | undefined optional

The zoom delta applied on each double click, default is 1.

Extends

Methods

dispatchChangeEvent() inherited experimental

src/ol/observable.js, line 41

Dispatches a change event.

Fires:
  • change experimental

on(type, listener, opt_this){goog.events.Key} inherited experimental

src/ol/observable.js, line 63

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 optional

The object to use as this in listener.
Returns:
Unique key for the listener.

once(type, listener, opt_this){goog.events.Key} inherited experimental

src/ol/observable.js, line 76

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 optional

The object to use as this in listener.
Returns:
Unique key for the listener.

un(type, listener, opt_this) inherited experimental

src/ol/observable.js, line 88

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 optional

The object to use as this in listener.

unByKey(key) inherited experimental

src/ol/observable.js, line 98

Removes an event listener using the key returned by on() or once().

Name Type Description
key goog.events.Key

Key.