Class: Cluster

ol.source.Cluster

Layer source to cluster vector data.

new ol.source.Cluster(options) experimental

src/ol/source/clustersource.js, line 25
Name Type Description
options

Constructor options.

Name Type Description
attributions Array.<ol.Attribution> | undefined experimental

Attributions.

distance number | undefined experimental

Minimum distance in pixels between clusters. Default is 20.

extent ol.Extent | undefined experimental

Extent.

format ol.format.Feature | undefined experimental

Format.

logo string | undefined experimental

Logo.

projection ol.proj.ProjectionLike experimental

Projection.

source ol.source.Vector experimental

Source. Required.

wrapX boolean | undefined experimental

WrapX. Default is true

Fires:

Extends

Methods

addFeature(feature) inherited

src/ol/source/vectorsource.js, line 187

Add a single feature to the source. If you want to add a batch of features at once, call source.addFeatures() instead.

Name Type Description
feature ol.Feature

Feature to add.

addFeatures(features) inherited

src/ol/source/vectorsource.js, line 271

Add a batch of features to the source.

Name Type Description
features Array.<ol.Feature>

Features to add.

changed() inherited experimental

src/ol/observable.js, line 50

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

clear(opt_fast) inherited

src/ol/source/vectorsource.js, line 375

Remove all features from the source.

Name Type Description
fast boolean

Skip dispatching of removefeature events.

dispatchEvent(event) inherited experimental

src/ol/observable.js, line 72

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 goog.events.EventLike

Event object.

forEachFeature(callback, opt_this){S|undefined} inherited

src/ol/source/vectorsource.js, line 427

Iterate through all features on the source, calling the provided callback with each one. If the callback returns any "truthy" value, iteration will stop and the function will return the same value.

Name Type Description
callback function

Called with each feature on the source. Return a truthy value to stop iteration.

this T

The object to use as this in the callback.

Returns:
The return value from the last call to the callback.

forEachFeatureInExtent(extent, callback, opt_this){S|undefined} inherited experimental

src/ol/source/vectorsource.js, line 484

Iterate through all features whose bounding box intersects the provided extent (note that the feature's geometry may not intersect the extent), calling the callback with each feature. If the callback returns a "truthy" value, iteration will stop and the function will return the same value.

If you are interested in features whose geometry intersects an extent, call the source.forEachFeatureIntersectingExtent() method instead.

When useSpatialIndex is set to false, this method will loop through all features, equivalent to ol.source.Vector#forEachFeature.

Name Type Description
extent ol.Extent

Extent.

callback function

Called with each feature whose bounding box intersects the provided extent.

this T

The object to use as this in the callback.

Returns:
The return value from the last call to the callback.

forEachFeatureIntersectingExtent(extent, callback, opt_this){S|undefined} inherited experimental

src/ol/source/vectorsource.js, line 510

Iterate through all features whose geometry intersects the provided extent, calling the callback with each feature. If the callback returns a "truthy" value, iteration will stop and the function will return the same value.

If you only want to test for bounding box intersection, call the source.forEachFeatureInExtent() method instead.

Name Type Description
extent ol.Extent

Extent.

callback function

Called with each feature whose geometry intersects the provided extent.

this T

The object to use as this in the callback.

Returns:
The return value from the last call to the callback.

get(key){*} inherited

src/ol/object.js, line 147

Gets a value.

Name Type Description
key string

Key name.

Returns:
Value.

getAttributions(){Array.<ol.Attribution>} inherited

src/ol/source/source.js, line 104

Get the attributions of the source.

Returns:
Attributions.

getClosestFeatureToCoordinate(coordinate){ol.Feature} inherited

src/ol/source/vectorsource.js, line 607

Get the closest feature to the provided coordinate.

This method is not available when the source is configured with useSpatialIndex set to false.

Name Type Description
coordinate ol.Coordinate

Coordinate.

Returns:
Closest feature.

getExtent(){ol.Extent} inherited

src/ol/source/vectorsource.js, line 660

Get the extent of the features currently in the source.

This method is not available when the source is configured with useSpatialIndex set to false.

Returns:
Extent.

getFeatureById(id){ol.Feature} inherited

src/ol/source/vectorsource.js, line 676

Get a feature by its identifier (the value returned by feature.getId()). Note that the index treats string and numeric identifiers as the same. So source.getFeatureById(2) will return a feature with id '2' or 2.

Name Type Description
id string | number

Feature identifier.

Returns:
The feature (or null if not found).

getFeatures(){Array.<ol.Feature>} inherited

src/ol/source/vectorsource.js, line 548

Get all features on the source.

Returns:
Features.

getFeaturesAtCoordinate(coordinate){Array.<ol.Feature>} inherited

src/ol/source/vectorsource.js, line 571

Get all features whose geometry intersects the provided coordinate.

Name Type Description
coordinate ol.Coordinate

Coordinate.

Returns:
Features.

getFeaturesCollection(){ol.Collection.<ol.Feature>} inherited experimental

src/ol/source/vectorsource.js, line 538

Get the features collection associated with this source. Will be null unless the source was configured with useSpatialIndex set to false, or with an ol.Collection as features.

Returns:
The collection of features.

getFeaturesInExtent(extent){Array.<ol.Feature>} inherited experimental

src/ol/source/vectorsource.js, line 591

Get all features in the provided extent. Note that this returns all features whose bounding boxes intersect the given extent (so it may include features whose geometries do not intersect the extent).

This method is not available when the source is configured with useSpatialIndex set to false.

Name Type Description
extent ol.Extent

Extent.

Returns:
Features.

getKeys(){Array.<string>} inherited

src/ol/object.js, line 161

Get a list of object property names.

Returns:
List of property names.
src/ol/source/source.js, line 114

Get the logo of the source.

Returns:
Logo.

getProjection(){ol.proj.Projection} inherited experimental

src/ol/source/source.js, line 124

Get the projection of the source.

Returns:
Projection.

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

src/ol/object.js, line 171

Get an object of all property names and values.

Returns:
Object.

getRevision(){number} inherited experimental

src/ol/observable.js, line 81

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

Returns:
Revision.

getSource(){ol.source.Vector} experimental

src/ol/source/clustersource.js, line 69

Get a reference to the wrapped source.

Returns:
Source.

getState(){ol.source.State} inherited experimental

src/ol/source/source.js, line 140

Get the state of the source, see ol.source.State for possible states.

Returns:
State.

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

src/ol/observable.js, line 94

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

The object to use as this in listener.

Returns:
Unique key for the listener.

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

src/ol/observable.js, line 107

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

The object to use as this in listener.

Returns:
Unique key for the listener.

removeFeature(feature) inherited

src/ol/source/vectorsource.js, line 796

Remove a single feature from the source. If you want to remove all features at once, use the source.clear() method instead.

Name Type Description
feature ol.Feature

Feature to remove.

set(key, value, opt_silent) inherited

src/ol/object.js, line 201

Sets a value.

Name Type Description
key string

Key name.

value *

Value.

silent boolean

Update without triggering an event.

setAttributions(attributions) inherited experimental

src/ol/source/source.js, line 158

Set the attributions of the source.

Name Type Description
attributions Array.<ol.Attribution>

Attributions.

setProperties(values, opt_silent) inherited

src/ol/object.js, line 221

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

Update without triggering an event.

un(type, listener, opt_this) inherited

src/ol/observable.js, line 120

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

The object which was used as this by the listener.

unByKey(key) inherited

src/ol/observable.js, line 133

Removes an event listener using the key returned by on() or once(). Note that using the ol.Observable.unByKey static function is to be preferred.

Name Type Description
key goog.events.Key

The key returned by on() or once().

unset(key, opt_silent) inherited

src/ol/object.js, line 235

Unsets a property.

Name Type Description
key string

Key name.

silent boolean

Unset without triggering an event.