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Marker

Defined in: src/ui/marker.ts:127

Creates a marker component

Examples

let marker = new Marker()
  .setLngLat([30.5, 50.5])
  .addTo(map);

Set options 

let marker = new Marker({
    color: "#FFFFFF",
    draggable: true
  }).setLngLat([30.5, 50.5])
  .addTo(map);

See

Events

Event dragstart of type Event will be fired when dragging starts.

Event drag of type Event will be fired while dragging.

Event dragend of type Event will be fired when the marker is finished being dragged.

Extends

Constructors

Constructor

new Marker(options?: MarkerOptions): Marker

Defined in: src/ui/marker.ts:157

Parameters

Parameter Type Description
options? MarkerOptions the options

Returns

Marker

Overrides

Evented.constructor

Methods

addClassName()

addClassName(className: string): void

Defined in: src/ui/marker.ts:669

Adds a CSS class to the marker element.

Parameters

Parameter Type Description
className string on-empty string with CSS class name to add to marker element

Returns

void

Example

let marker = new Marker()
marker.addClassName('some-class')

addTo()

addTo(map: Map): this

Defined in: src/ui/marker.ts:315

Attaches the Marker to a Map object.

Parameters

Parameter Type Description
map Map The TrackAsia GL JS map to add the marker to.

Returns

this

Example

let marker = new Marker()
  .setLngLat([30.5, 50.5])
  .addTo(map); // add the marker to the map

getElement()

getElement(): HTMLElement

Defined in: src/ui/marker.ts:418

Returns the Marker's HTML element.

Returns

HTMLElement

element

getLngLat()

getLngLat(): LngLat

Defined in: src/ui/marker.ts:389

Get the marker's geographical location.

The longitude of the result may differ by a multiple of 360 degrees from the longitude previously set by setLngLat because Marker wraps the anchor longitude across copies of the world to keep the marker on screen.

Returns

LngLat

A LngLat describing the marker's location.

Example

// Store the marker's longitude and latitude coordinates in a variable
let lngLat = marker.getLngLat();
// Print the marker's longitude and latitude values in the console
console.log('Longitude: ' + lngLat.lng + ', Latitude: ' + lngLat.lat )

See

Create a draggable Marker

getOffset()

getOffset(): Point

Defined in: src/ui/marker.ts:644

Get the marker's offset.

Returns

Point

The marker's screen coordinates in pixels.

getPitchAlignment()

getPitchAlignment(): Alignment

Defined in: src/ui/marker.ts:847

Returns the current pitchAlignment property of the marker.

Returns

Alignment

The current pitch alignment of the marker in degrees.

getPopup()

getPopup(): Popup

Defined in: src/ui/marker.ts:524

Returns the Popup instance that is bound to the Marker.

Returns

Popup

popup

Example

let marker = new Marker()
 .setLngLat([0, 0])
 .setPopup(new Popup().setHTML("<h1>Hello World!</h1>"))
 .addTo(map);

console.log(marker.getPopup()); // return the popup instance

getRotation()

getRotation(): number

Defined in: src/ui/marker.ts:811

Returns the current rotation angle of the marker (in degrees).

Returns

number

The current rotation angle of the marker.

getRotationAlignment()

getRotationAlignment(): Alignment

Defined in: src/ui/marker.ts:829

Returns the current rotationAlignment property of the marker.

Returns

Alignment

The current rotational alignment of the marker.

isDraggable()

isDraggable(): boolean

Defined in: src/ui/marker.ts:793

Returns true if the marker can be dragged

Returns

boolean

True if the marker is draggable.

listens()

listens(type: string): boolean

Defined in: src/util/evented.ts:165

Returns a true if this instance of Evented or any forwardeed instances of Evented have a listener for the specified type.

Parameters

Parameter Type Description
type string The event type

Returns

boolean

true if there is at least one registered listener for specified event type, false otherwise

Inherited from

Evented.listens

off()

off(type: string, listener: Listener): Marker

Defined in: src/util/evented.ts:90

Removes a previously registered event listener.

Parameters

Parameter Type Description
type string The event type to remove listeners for.
listener Listener The listener function to remove.

Returns

Marker

Inherited from

Evented.off

on()

on(type: string, listener: Listener): Subscription

Defined in: src/util/evented.ts:73

Adds a listener to a specified event type.

Parameters

Parameter Type Description
type string The event type to add a listen for.
listener Listener The function to be called when the event is fired. The listener function is called with the data object passed to fire, extended with target and type properties.

Returns

Subscription

Inherited from

Evented.on

once()

once(type: string, listener?: Listener): Promise<any> | Marker

Defined in: src/util/evented.ts:106

Adds a listener that will be called only once to a specified event type.

The listener will be called first time the event fires after the listener is registered.

Parameters

Parameter Type Description
type string The event type to listen for.
listener? Listener The function to be called when the event is fired the first time.

Returns

Promise<any> | Marker

this or a promise if a listener is not provided

Inherited from

Evented.once

remove()

remove(): this

Defined in: src/ui/marker.ts:348

Removes the marker from a map

Returns

this

Example

let marker = new Marker().addTo(map);
marker.remove();

removeClassName()

removeClassName(className: string): void

Defined in: src/ui/marker.ts:684

Removes a CSS class from the marker element.

Parameters

Parameter Type Description
className string Non-empty string with CSS class name to remove from marker element

Returns

void

Example

let marker = new Marker()
marker.removeClassName('some-class')

setDraggable()

setDraggable(shouldBeDraggable?: boolean): this

Defined in: src/ui/marker.ts:771

Sets the draggable property and functionality of the marker

Parameters

Parameter Type Description
shouldBeDraggable? boolean Turns drag functionality on/off

Returns

this

setEventedParent()

setEventedParent(parent?: Evented, data?: any): Marker

Defined in: src/util/evented.ts:176

Bubble all events fired by this instance of Evented to this parent instance of Evented.

Parameters

Parameter Type
parent? Evented
data? any

Returns

Marker

Inherited from

Evented.setEventedParent

setLngLat()

setLngLat(lnglat: LngLatLike): this

Defined in: src/ui/marker.ts:406

Set the marker's geographical position and move it.

Parameters

Parameter Type Description
lnglat LngLatLike A LngLat describing where the marker should be located.

Returns

this

Example

Create a new marker, set the longitude and latitude, and add it to the map 

new Marker()
  .setLngLat([-65.017, -16.457])
  .addTo(map);

See

setOffset()

setOffset(offset: PointLike): this

Defined in: src/ui/marker.ts:652

Sets the offset of the marker

Parameters

Parameter Type Description
offset PointLike The offset in pixels as a PointLike object to apply relative to the element's center. Negatives indicate left and up.

Returns

this

setOpacity()

setOpacity(opacity?: string, opacityWhenCovered?: string): this

Defined in: src/ui/marker.ts:857

Sets the opacity and opacityWhenCovered properties of the marker. When called without arguments, resets opacity and opacityWhenCovered to defaults

Parameters

Parameter Type Description
opacity? string Sets the opacity property of the marker.
opacityWhenCovered? string Sets the opacityWhenCovered property of the marker.

Returns

this

setPitchAlignment()

setPitchAlignment(alignment?: Alignment): this

Defined in: src/ui/marker.ts:837

Sets the pitchAlignment property of the marker.

Parameters

Parameter Type Description
alignment? Alignment Sets the pitchAlignment property of the marker. If alignment is 'auto', it will automatically match rotationAlignment.

Returns

this

setPopup()

setPopup(popup?: Popup): this

Defined in: src/ui/marker.ts:435

Binds a Popup to the Marker.

Parameters

Parameter Type Description
popup? Popup An instance of the Popup class. If undefined or null, any popup set on this Marker instance is unset.

Returns

this

Example

let marker = new Marker()
 .setLngLat([0, 0])
 .setPopup(new Popup().setHTML("<h1>Hello World!</h1>")) // add popup
 .addTo(map);

See

Attach a popup to a marker instance

setRotation()

setRotation(rotation?: number): this

Defined in: src/ui/marker.ts:801

Sets the rotation property of the marker.

Parameters

Parameter Type Description
rotation? number The rotation angle of the marker (clockwise, in degrees), relative to its respective Marker#setRotationAlignment setting.

Returns

this

setRotationAlignment()

setRotationAlignment(alignment?: Alignment): this

Defined in: src/ui/marker.ts:819

Sets the rotationAlignment property of the marker.

Parameters

Parameter Type Description
alignment? Alignment Sets the rotationAlignment property of the marker. defaults to 'auto'

Returns

this

setSubpixelPositioning()

setSubpixelPositioning(value: boolean): Marker

Defined in: src/ui/marker.ts:485

Set the option to allow subpixel positioning of the marker by passing a boolean

Parameters

Parameter Type Description
value boolean when set to true, subpixel positioning is enabled for the marker.

Returns

Marker

Example

let marker = new Marker()
marker.setSubpixelPositioning(true);

toggleClassName()

toggleClassName(className: string): boolean

Defined in: src/ui/marker.ts:701

Add or remove the given CSS class on the marker element, depending on whether the element currently has that class.

Parameters

Parameter Type Description
className string Non-empty string with CSS class name to add/remove

Returns

boolean

if the class was removed return false, if class was added, then return true

Example

let marker = new Marker()
marker.toggleClassName('toggleClass')

togglePopup()

togglePopup(): this

Defined in: src/ui/marker.ts:540

Opens or closes the Popup instance that is bound to the Marker, depending on the current state of the Popup.

Returns

this

Example

let marker = new Marker()
 .setLngLat([0, 0])
 .setPopup(new Popup().setHTML("<h1>Hello World!</h1>"))
 .addTo(map);

marker.togglePopup(); // toggle popup open or closed