Class: PinchZoom

Extends

• PointerInteraction

Observable Properties

Name	Type	Settable	ObjectEvent type	Description
active	boolean	yes	change:active	true if the interaction is active, false otherwise.

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.

get(key){*} inherited

Object.js, line 135

Gets a value.

Name	Type	Description
key	string	Key name.

Returns:

Value.

getActive(){boolean} inherited

interaction/Interaction.js, line 82

Return whether the interaction is currently active.

Returns:

true if the interaction is active, false otherwise.

getKeys(){Array.<string>} inherited

Object.js, line 148

Get a list of object property names.

Returns:

List of property names.

getMap(){Map | null} inherited

interaction/Interaction.js, line 91

Get the map associated with this interaction.

Returns:

Map.

getPointerCount(){number} inherited

interaction/Pointer.js, line 95

Returns the current number of pointers involved in the interaction, e.g. 2 when two fingers are used.

Returns:

The number of pointers.

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.

handleEvent(mapBrowserEvent){boolean} inherited

interaction/Pointer.js, line 125

Handles the map browser event and may call into other functions, if event sequences like e.g. 'drag' or 'down-up' etc. are detected.

Name	Type	Description
mapBrowserEvent	MapBrowserEvent	Map browser event.

Returns:

false to stop event propagation.

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.

set(key, value, silent) inherited

Object.js, line 215

Sets a value.

Name	Type	Description
key	string	Key name.
value	*	Value.
silent	boolean | undefined	Update without triggering an event.

setActive(active) inherited

interaction/Interaction.js, line 111

Activate or deactivate the interaction.

Name	Type	Description
active	boolean	Active.

setProperties(values, silent) inherited

Object.js, line 235

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 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.

unset(key, silent) inherited

Object.js, line 259

Unsets a property.

Name	Type	Description
key	string	Key name.
silent	boolean | undefined	Unset without triggering an event.