Class: Rotate

ol/control/Rotate~Rotate


import Rotate from 'ol/control/Rotate';

A button control to reset rotation to 0. To style this control use css selector .ol-rotate. A .ol-hidden css selector is added to the button when the rotation is 0.

new Rotate(options)

Name Type Description
className string (defaults to 'ol-rotate')

CSS class name.

label string | HTMLElement (defaults to '⇧')

Text label to use for the rotate button. Instead of text, also an element (e.g. a span element) can be used.

tipLabel string (defaults to 'Reset rotation')

Text label to use for the rotate tip.

compassClassName string (defaults to 'ol-compass')

CSS class name for the compass.

duration number (defaults to 250)

Animation duration in milliseconds.

autoHide boolean (defaults to true)

Hide the control when rotation is 0.

render function | undefined

Function called when the control should be re-rendered. This is called in a requestAnimationFrame callback.

resetNorth function | undefined

Function called when the control is clicked. This will override the default resetNorth.

target HTMLElement | string | undefined

Specify a target if you want the control to be rendered outside of the map's viewport.

Fires:

Extends

Methods

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

dispatchEvent(event){boolean | undefined} inherited

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.

Gets a value.

Name Type Description
key string

Key name.

Returns:
Value.

getKeys(){Array.<string>} inherited

Get a list of object property names.

Returns:
List of property names.

Get the map associated with this control.

Returns:
Map.

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

Get an object of all property names and values.

Returns:
Object.

getRevision(){number} inherited

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

Returns:
Revision.

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

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

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.

Update the rotate control element.

Name Type Description
mapEvent MapEvent

Map event.

set(key, value, silent) inherited

Sets a value.

Name Type Description
key string

Key name.

value *

Value.

silent boolean | undefined

Update without triggering an event.

Remove the control from its current map and attach it to the new map. Pass null to just remove the control from the current map. Subclasses may set up event handlers to get notified about changes to the map here.

Name Type Description
map Map | null

Map.

setProperties(values, silent) inherited

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.

This function is used to set a target element for the control. It has no effect if it is called after the control has been added to the map (i.e. after setMap is called on the control). If no target is set in the options passed to the control constructor and if setTarget is not called then the control is added to the map's overlay container.

Name Type Description
target HTMLElement | string

Target.

un(type, listener) inherited

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

Unsets a property.

Name Type Description
key string

Key name.

silent boolean | undefined

Unset without triggering an event.