Class: Draw

Extends

• ol.interaction.Pointer

Observable Properties

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

Methods

ol.interaction.Draw.createRegularPolygon(opt_sides, opt_angle){ol.interaction.DrawGeometryFunctionType} experimental

src/ol/interaction/drawinteraction.js, line 792

Create a geometryFunction for mode: 'Circle' that will create a regular polygon with a user specified number of sides and start angle instead of an ol.geom.Circle geometry.

Name	Type	Description
sides	number	Number of sides of the regular polygon. Default is 32.
angle	number	Angle of the first point in radians. 0 means East. Default is the angle defined by the heading from the center of the regular polygon to the current pointer position.

Returns:

Function that draws a polygon.

ol.interaction.Draw.handleEvent(mapBrowserEvent){boolean} experimental

src/ol/interaction/drawinteraction.js, line 339

Handles the map browser event and may actually draw or finish the drawing.

This:

• {ol.interaction.Draw}

Name	Type	Description
mapBrowserEvent	ol.MapBrowserEvent	Map browser event.

Returns:

false to stop event propagation.

changed() inherited experimental

src/ol/observable.js, line 50

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

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.

extend(feature) experimental

src/ol/interaction/drawinteraction.js, line 720

Extend an existing geometry by adding additional points. This only works on features with LineString geometries, where the interaction will extend lines by adding points to the end of the coordinates array.

Name	Type	Description
feature	ol.Feature	Feature to be extended.

finishDrawing() experimental

src/ol/interaction/drawinteraction.js, line 652

Stop drawing and add the sketch feature to the target layer. The ol.interaction.DrawEventType.DRAWEND event is dispatched before inserting the feature.

get(key){*} inherited

src/ol/object.js, line 147

Gets a value.

Name	Type	Description
key	string	Key name.

Returns:

Value.

getActive(){boolean} inherited experimental

src/ol/interaction/interaction.js, line 65

Return whether the interaction is currently active.

Returns:

true if the interaction is active, false otherwise.

getKeys(){Array.<string>} inherited

src/ol/object.js, line 161

Get a list of object property names.

Returns:

List of property names.

getMap(){ol.Map} inherited experimental

src/ol/interaction/interaction.js, line 76

Get the map associated with this interaction.

Returns:

Map.

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.

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.

removeLastPoint() experimental

src/ol/interaction/drawinteraction.js, line 619

Remove last point of the feature currently being drawn.

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.

setActive(active) inherited experimental

src/ol/interaction/interaction.js, line 87

Activate or deactivate the interaction.

Name	Type	Description
active	boolean	Active.

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.