Extends

• ol.Object

Observable Properties

Name	Type	Settable	Event	Description
layergroup	ol.layer.LayerGroup	yes	change:layergroup	a layer group containing the layers in this map.
size	ol.Size	yes	change:size	the size in pixels of the map in the DOM
target	string | Element	yes	change:target	the Element or id of the Element that the map is rendered in.
view	ol.IView	yes	change:view	the view that controls this map

Methods

addControl

Stability: experimental

Add the given control to the map.

Parameters:

Name	Type	Description
control	ol.control.Control	Control.

Source:

• map.js, line 460

addInteraction

Stability: not documented

Add the given interaction to the map.

Parameters:

Name	Type	Description
interaction	ol.interaction.Interaction	Interaction to add.

Source:

• map.js, line 471

addLayer

Stability: experimental

Adds the given layer to the top of this map.

Parameters:

Name	Type	Description
layer	ol.layer.Base	Layer.

Source:

• map.js, line 483

addOverlay

Stability: experimental

Add the given overlay to the map.

Parameters:

Name	Type	Description
overlay	ol.Overlay	Overlay.

Source:

• map.js, line 495

beforeRender

Stability: experimental

Add functions to be called before rendering. This can be used for attaching animations before updating the map's view. The ol.animation namespace provides several static methods for creating prerender functions.

Parameters:

Name	Type	Description
var_args	ol.PreRenderFunction	Any number of pre-render functions.

Source:

• map.js, line 509

bindTo

Stability: experimental

The bindTo method allows you to set up a two-way binding between a source and target object. The method returns an ol.ObjectAccessor with a transform method that lets you transform values on the way from the source to the target and on the way back.

For example, if you had two map views (sourceView and targetView) and you wanted the target view to have double the resolution of the source view, you could transform the resolution on the way to and from the target with the following:

sourceView.bindTo('resolution', targetView)
  .transform(
    function(sourceResolution) {
      // from sourceView.resolution to targetView.resolution
      return 2 * sourceResolution;
    },
    function(targetResolution) {
      // from targetView.resolution to sourceView.resolution
      return targetResolution / 2;
    }
  );

Parameters:

Name	Type	Argument	Description
key	string		Key name.
target	ol.Object		Target.
targetKey	string	<optional>	Target key.

Inherited From:

• ol.Object#bindTo

Source:

• object.js, line 232

Returns:

Type

ol.ObjectAccessor

dispatchChangeEvent

Stability: experimental

Inherited From:

• ol.Observable#dispatchChangeEvent

Source:

• observable.js, line 35

forEachFeatureAtPixel

Stability: not documented

Parameters:

Name	Type	Argument	Description
pixel	ol.Pixel		Pixel.
callback	function		Feature callback.
this	S	<optional>	Value to use as this when executing callback.
layerFilter	function		Layer filter function, only layers which are visible and for which this function returns true will be tested for features. By default, all visible layers will be tested.
this2	U	<optional>	Value to use as this when executing layerFilter.

Source:

• map.js, line 547

Returns:

Callback result.

Type

T | undefined

get

Stability: experimental

Gets a value.

Parameters:

Name	Type	Description
key	string	Key name.

Inherited From:

• ol.Object#get

Source:

• object.js, line 289

Returns:

Value.

Type

*

getControls

Stability: experimental

Source:

• map.js, line 636

Returns:

Controls.

Type

ol.Collection

getCoordinateFromPixel

Stability: not documented

Parameters:

Name	Type	Description
pixel	ol.Pixel	Pixel.

Source:

• map.js, line 621

Returns:

Coordinate.

Type

ol.Coordinate

getEventCoordinate

Stability: experimental

Returns the geographical coordinate for a browser event.

Parameters:

Name	Type	Description
event	Event	Event.

Source:

• map.js, line 569

Returns:

Coordinate.

Type

ol.Coordinate

getEventPixel

Stability: experimental

Returns the map pixel position for a browser event.

Parameters:

Name	Type	Description
event	Event	Event.

Source:

• map.js, line 580

Returns:

Pixel.

Type

ol.Pixel

getInteractions

Stability: experimental

Gets the collection of ol.interaction.Interaction instances associated with this map. Modifying this collection changes the interactions associated with the map.

Interactions are used for e.g. pan, zoom and rotate.

Source:

• map.js, line 660

Returns:

Interactions.

Type

ol.Collection

getLayerGroup

Stability: experimental

Get the layergroup associated with this map.

Source:

• map.js, line 670

Returns:

LayerGroup.

Type

ol.layer.Group

getLayers

Stability: experimental

Get the collection of layers associated with this map.

Source:

• map.js, line 685

Returns:

Layers.

Type

ol.Collection | undefined

getOverlays

Stability: experimental

Source:

• map.js, line 645

Returns:

Overlays.

Type

ol.Collection

getPixelFromCoordinate

Stability: not documented

Parameters:

Name	Type	Description
coordinate	ol.Coordinate	Coordinate.

Source:

• map.js, line 699

Returns:

Pixel.

Type

ol.Pixel

getProperties

Stability: experimental

Get an object of all property names and values.

Inherited From:

• ol.Object#getProperties

Source:

• object.js, line 348

Returns:

Object.

Type

Object.<string, *>

getSize

Stability: experimental

Get the size of this map.

Source:

• map.js, line 715

Returns:

Size.

Type

ol.Size | undefined

getTarget

Stability: experimental

Get the target in which this map is rendered. Note that this returns what is entered as an option or in setTarget: if that was an element, it returns an element; if a string, it returns that.

Source:

• map.js, line 607

Returns:

Target.

Type

Element | string | undefined

getView

Stability: experimental

Get the view associated with this map. This can be a 2D or 3D view. A 2D view manages properties such as center and resolution.

Source:

• map.js, line 730

Returns:

View.

Type

ol.View | undefined

getViewport

Stability: experimental

Source:

• map.js, line 743

Returns:

Viewport.

Type

Element

notify

Stability: experimental

Notify all observers of a change on this property. This notifies both objects that are bound to the object's property as well as the object that it is bound to.

Parameters:

Name	Type	Description
key	string	Key name.

Inherited From:

• ol.Object#notify

Source:

• object.js, line 368

on

Stability: experimental

Listen for a certain type of event.

Parameters:

Name	Type	Argument	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.

Inherited From:

• ol.Observable#on

Source:

• observable.js, line 58

Returns:

Unique key for the listener.

Type

goog.events.Key

once

Stability: experimental

Listen once for a certain type of event.

Parameters:

Name	Type	Argument	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.

Inherited From:

• ol.Observable#once

Source:

• observable.js, line 71

Returns:

Unique key for the listener.

Type

goog.events.Key

removeControl

Stability: experimental

Remove the given control from the map.

Parameters:

Name	Type	Description
control	ol.control.Control	Control.

Source:

• map.js, line 1072

Returns:

The removed control of undefined if the control was not found.

Type

ol.control.Control | undefined

removeInteraction

Stability: not documented

Remove the given interaction from the map.

Parameters:

Name	Type	Description
interaction	ol.interaction.Interaction	Interaction to remove.

Source:

• map.js, line 1088

Returns:

The removed interaction (or undefined if the interaction was not found).

Type

ol.interaction.Interaction | undefined

removeLayer

Stability: experimental

Removes the given layer from the map.

Parameters:

Name	Type	Description
layer	ol.layer.Base	Layer.

Source:

• map.js, line 1106

Returns:

The removed layer or undefined if the layer was not found.

Type

ol.layer.Base | undefined

removeOverlay

Stability: experimental

Remove the given overlay from the map.

Parameters:

Name	Type	Description
overlay	ol.Overlay	Overlay.

Source:

• map.js, line 1120

Returns:

The removed overlay of undefined if the overlay was not found.

Type

ol.Overlay | undefined

render

Stability: not documented

Request that renderFrame_ be called some time in the future.

Source:

• map.js, line 1058

renderSync

Stability: not documented

Render.

Source:

• map.js, line 1050

set

Stability: experimental

Sets a value.

Parameters:

Name	Type	Description
key	string	Key name.
value	*	Value.

Inherited From:

• ol.Object#set

Source:

• object.js, line 399

setLayerGroup

Stability: experimental

Sets the layergroup of this map.

Parameters:

Name	Type	Description
layerGroup	ol.layer.Group	Layergroup.

Source:

• map.js, line 1245

setSize

Stability: experimental

Set the size of this map.

Parameters:

Name	Type	Description
size	ol.Size | undefined	Size.

Source:

• map.js, line 1259

setTarget

Stability: experimental

Set the target element to render this map into.

Parameters:

Name	Type	Description
target	Element | string | undefined	Target.

Source:

• map.js, line 1273

setValues

Stability: experimental

Sets a collection of key-value pairs.

Parameters:

Name	Type	Description
values	Object.<string, *>	Values.

Inherited From:

• ol.Object#setValues

Source:

• object.js, line 428

setView

Stability: experimental

Set the view for this map.

Parameters:

Name	Type	Description
view	ol.IView	View.

Source:

• map.js, line 1287

un

Stability: experimental

Unlisten for a certain type of event.

Parameters:

Name	Type	Argument	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.

Inherited From:

• ol.Observable#un

Source:

• observable.js, line 83

unbind

Stability: experimental

Removes a binding. Unbinding will set the unbound property to the current value. The object will not be notified, as the value has not changed.

Parameters:

Name	Type	Description
key	string	Key name.

Inherited From:

• ol.Object#unbind

Source:

• object.js, line 442

unbindAll

Stability: experimental

Removes all bindings.

Inherited From:

• ol.Object#unbindAll

Source:

• object.js, line 466

unByKey

Stability: experimental

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

Parameters:

Name	Type	Description
key	goog.events.Key	Key.

Inherited From:

• ol.Observable#unByKey

Source:

• observable.js, line 93

updateSize

Stability: experimental

Force a recalculation of the map viewport size. This should be called when third-party code changes the size of the map viewport.

Source:

• map.js, line 1301