OpenLayers

Class: TileUTFGrid

ol.source.TileUTFGrid

Layer source for UTFGrid interaction data loaded from TileJSON format.

new ol.source.TileUTFGrid(options)

src/ol/source/tileutfgrid.js, line 28
Name Type Description
options

Source options.

Name Type Description
jsonp boolean | undefined

Use JSONP with callback to load the TileJSON. Useful when the server does not support CORS. Default is false.
preemptive boolean | undefined

If true the TileUTFGrid source loads the tiles based on their "visibility". This improves the speed of response, but increases traffic. Note that if set to false, you need to pass true as opt_request to the forDataAtCoordinateAndResolution method otherwise no data will ever be loaded. Default is true.
tileJSON TileJSON | undefined

TileJSON configuration for this source. If not provided, url must be configured.
url string | undefined

TileJSON endpoint that provides the configuration for this source. Request will be made through JSONP. If not provided, tileJSON must be configured.
Fires:

Extends

Methods

changed() inherited

src/ol/observable.js, line 58

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

dispatchEvent(event) inherited

src/ol/observable.js, line 75

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 Object | ol.events.Event | string

Event object.

forDataAtCoordinateAndResolution(coordinate, resolution, callback, opt_this, opt_request)

src/ol/source/tileutfgrid.js, line 133

Calls the callback (synchronously by default) with the available data for given coordinate and resolution (or null if not yet loaded or in case of an error).

Name Type Description
coordinate ol.Coordinate

Coordinate.
resolution number

Resolution.
callback function

Callback.
this T

The object to use as this in the callback.
request boolean

If true the callback is always async. The tile data is requested if not yet loaded.

get(key){*} inherited

src/ol/object.js, line 101

Gets a value.

Name Type Description
key string

Key name.
Returns:
Value.

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

src/ol/source/source.js, line 113

Get the attributions of the source.

Returns:
Attributions.

getKeys(){Array.<string>} inherited

src/ol/object.js, line 115

Get a list of object property names.

Returns:
List of property names.

getLogo(){string|olx.LogoOptions|undefined} inherited

src/ol/source/source.js, line 123

Get the logo of the source.

Returns:
Logo.

getProjection(){ol.proj.Projection} inherited

src/ol/source/source.js, line 133

Get the projection of the source.

Returns:
Projection.

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

src/ol/object.js, line 125

Get an object of all property names and values.

Returns:
Object.

getRevision(){number} inherited

src/ol/observable.js, line 84

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

Returns:
Revision.

getState(){ol.source.State} inherited

src/ol/source/source.js, line 150

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

Returns:
State.

getTemplate(){string|undefined}

src/ol/source/tileutfgrid.js, line 115

Return the template from TileJSON.

Returns:
The template from TileJSON.

getTileGrid(){ol.tilegrid.TileGrid} inherited

src/ol/source/tile.js, line 211

Return the tile grid of the tile source.

Returns:
Tile grid.

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

src/ol/observable.js, line 99

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. If called with an array of event types as the first argument, the return will be an array of keys.

once(type, listener, opt_this){ol.EventsKey|Array.<ol.EventsKey>} inherited

src/ol/observable.js, line 124

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. If called with an array of event types as the first argument, the return will be an array of keys.

refresh() inherited

src/ol/source/source.js, line 167

Refreshes the source and finally dispatches a 'change' event.

set(key, value, opt_silent) inherited

src/ol/object.js, line 150

Sets a value.

Name Type Description
key string

Key name.
value *

Value.
silent boolean

Update without triggering an event.

setAttributions(attributions) inherited

src/ol/source/source.js, line 179

Set the attributions of the source.

Name Type Description
attributions ol.AttributionLike | undefined

Attributions. Can be passed as string, Array<string>, ol.Attribution, Array<ol.Attribution> or undefined.

setProperties(values, opt_silent) inherited

src/ol/object.js, line 170

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 147

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.

unset(key, opt_silent) inherited

src/ol/object.js, line 184

Unsets a property.

Name Type Description
key string

Key name.
silent boolean

Unset without triggering an event.