ImageSource

Defined in: src/source/image_source.ts:84

A data source containing an image. (See the Style Specification for detailed documentation of options.)

Example

// add to map
map.addSource('some id', {
   type: 'image',
   url: 'https://www.maplibre.org/images/foo.png',
   coordinates: [
       [-76.54, 39.18],
       [-76.52, 39.18],
       [-76.52, 39.17],
       [-76.54, 39.17]
   ]
});

// update coordinates
let mySource = map.getSource('some id');
mySource.setCoordinates([
    [-76.54335737228394, 39.18579907229748],
    [-76.52803659439087, 39.1838364847587],
    [-76.5295386314392, 39.17683392507606],
    [-76.54520273208618, 39.17876344106642]
]);

// update url and coordinates simultaneously
mySource.updateImage({
   url: 'https://www.maplibre.org/images/bar.png',
   coordinates: [
       [-76.54335737228394, 39.18579907229748],
       [-76.52803659439087, 39.1838364847587],
       [-76.5295386314392, 39.17683392507606],
       [-76.54520273208618, 39.17876344106642]
   ]
})

map.removeSource('some id');  // remove

Extends

Evented

Extended by

Implements

Source

Methods

hasTransition()

hasTransition(): boolean

Defined in: src/source/image_source.ts:281

True if the source has transition, false otherwise.

Returns

boolean

Implementation of

Source.hasTransition

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

loaded()

loaded(): boolean

Defined in: src/source/image_source.ts:150

True if the source is loaded, false otherwise.

Returns

boolean

Implementation of

Source.loaded

loadTile()

loadTile(tile: Tile): Promise<void>

Defined in: src/source/image_source.ts:258

This method does the heavy lifting of loading a tile. In most cases it will defer the work to the relevant worker source.

Parameters

Parameter	Type	Description
`tile`	`Tile`	The tile to load

Returns

Promise<void>

Implementation of

Source.loadTile

off()

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

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

ImageSource

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

onAdd()

onAdd(map: Map): void

Defined in: src/source/image_source.ts:182

This method is called when the source is added to the map.

Parameters

Parameter	Type	Description
`map`	`Map`	The map instance

Returns

void

Implementation of

Source.onAdd

once()

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

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> | ImageSource

this or a promise if a listener is not provided

Inherited from

Evented.once

onRemove()

onRemove(): void

Defined in: src/source/image_source.ts:187

This method is called when the source is removed from the map.

Returns

void

Implementation of

Source.onRemove

prepare()

prepare(): void

Defined in: src/source/image_source.ts:230

Allows to execute a prepare step before the source is used.

Returns

void

Implementation of

Source.prepare

serialize()

serialize(): VideoSourceSpecification | ImageSourceSpecification | CanvasSourceSpecification

Defined in: src/source/image_source.ts:273

Returns

VideoSourceSpecification | ImageSourceSpecification | CanvasSourceSpecification

A plain (stringifiable) JS object representing the current state of the source. Creating a source using the returned object as the options should result in a Source that is equivalent to this one.

Implementation of

Source.serialize

setCoordinates()

setCoordinates(coordinates: Coordinates): this

Defined in: src/source/image_source.ts:202

Sets the image's coordinates and re-renders the map.

Parameters

Parameter	Type	Description
`coordinates`	`Coordinates`	Four geographical coordinates, represented as arrays of longitude and latitude numbers, which define the corners of the image. The coordinates start at the top left corner of the image and proceed in clockwise order. They do not have to represent a rectangle.

Returns

this

setEventedParent()

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

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

ImageSource

Inherited from

Evented.setEventedParent

updateImage()

updateImage(options: UpdateImageOptions): this

Defined in: src/source/image_source.ts:160

Updates the image URL and, optionally, the coordinates. To avoid having the image flash after changing, set the raster-fade-duration paint property on the raster layer to 0.