MapOptions

MapOptions: object

The Map options object.

Type declaration

antialias?

optional antialias: boolean

If true, the gl context will be created with MSAA antialiasing, which can be useful for antialiasing custom layers. This is false by default as a performance optimization.

attributionControl?

optional attributionControl: false | AttributionControlOptions

If set, an AttributionControl will be added to the map with the provided options. To disable the attribution control, pass false. Note: showing the logo of MapLibre is not required for using MapLibre.

Default Value

compact: true, customAttribution: "MapLibre ...".

bearing?

optional bearing: number

The initial bearing (rotation) of the map, measured in degrees counter-clockwise from north. If bearing is not specified in the constructor options, MapLibre GL JS will look for it in the map's style object. If it is not specified in the style, either, it will default to 0.

Default Value

bearingSnap?

optional bearingSnap: number

The threshold, measured in degrees, that determines when the map's bearing will snap to north. For example, with a bearingSnap of 7, if the user rotates the map within 7 degrees of north, the map will automatically snap to exact north.

Default Value

bounds?

optional bounds: LngLatBoundsLike

The initial bounds of the map. If bounds is specified, it overrides center and zoom constructor options.

boxZoom?

optional boxZoom: boolean

If true, the "box zoom" interaction is enabled (see BoxZoomHandler).

Default Value

true

cancelPendingTileRequestsWhileZooming?

optional cancelPendingTileRequestsWhileZooming: boolean

Determines whether to cancel, or retain, tiles from the current viewport which are still loading but which belong to a farther (smaller) zoom level than the current one. * If true, when zooming in, tiles which didn't manage to load for previous zoom levels will become canceled. This might save some computing resources for slower devices, but the map details might appear more abruptly at the end of the zoom. * If false, when zooming in, the previous zoom level(s) tiles will progressively appear, giving a smoother map details experience. However, more tiles will be rendered in a short period of time.

Default Value

true

center?

optional center: LngLatLike

The initial geographical centerpoint of the map. If center is not specified in the constructor options, MapLibre GL JS will look for it in the map's style object. If it is not specified in the style, either, it will default to [0, 0] Note: MapLibre GL JS uses longitude, latitude coordinate order (as opposed to latitude, longitude) to match GeoJSON.

Default Value

[0, 0]

clickTolerance?

optional clickTolerance: number

The max number of pixels a user can shift the mouse pointer during a click for it to be considered a valid click (as opposed to a mouse drag).

Default Value

true

collectResourceTiming?

optional collectResourceTiming: boolean

If true, Resource Timing API information will be collected for requests made by GeoJSON and Vector Tile web workers (this information is normally inaccessible from the main Javascript thread). Information will be returned in a resourceTiming property of relevant data events.

Default Value

false

container

container: HTMLElement | string

The HTML element in which MapLibre GL JS will render the map, or the element's string id. The specified element must have no children.

cooperativeGestures?

optional cooperativeGestures: GestureOptions

If true or set to an options object, the map is only accessible on desktop while holding Command/Ctrl and only accessible on mobile with two fingers. Interacting with the map using normal gestures will trigger an informational screen. With this option enabled, "drag to pitch" requires a three-finger gesture. Cooperative gestures are disabled when a map enters fullscreen using FullscreenControl.

Default Value

undefined

crossSourceCollisions?

optional crossSourceCollisions: boolean

If true, symbols from multiple sources can collide with each other during collision detection. If false, collision detection is run separately for the symbols in each source.

Default Value

true

doubleClickZoom?

optional doubleClickZoom: boolean

If true, the "double click to zoom" interaction is enabled (see DoubleClickZoomHandler).

Default Value

true

dragPan?

optional dragPan: boolean | DragPanOptions

If true, the "drag to pan" interaction is enabled. An Object value is passed as options to DragPanHandler#enable.

Default Value

true

dragRotate?

optional dragRotate: boolean

If true, the "drag to rotate" interaction is enabled (see DragRotateHandler).

Default Value

true

fadeDuration?

optional fadeDuration: number

Controls the duration of the fade-in/fade-out animation for label collisions after initial map load, in milliseconds. This setting affects all symbol layers. This setting does not affect the duration of runtime styling transitions or raster tile cross-fading.

Default Value

failIfMajorPerformanceCaveat?

optional failIfMajorPerformanceCaveat: boolean

If true, map creation will fail if the performance of MapLibre GL JS would be dramatically worse than expected (i.e. a software renderer would be used).

Default Value

false

fitBoundsOptions?

optional fitBoundsOptions: FitBoundsOptions

A FitBoundsOptions options object to use only when fitting the initial bounds provided above.

hash?

optional hash: boolean | string

If true, the map's position (zoom, center latitude, center longitude, bearing, and pitch) will be synced with the hash fragment of the page's URL. For example, http://path/to/my/page.html#2.59/39.26/53.07/-24.1/60. An additional string may optionally be provided to indicate a parameter-styled hash, e.g. http://path/to/my/page.html#map=2.59/39.26/53.07/-24.1/60&foo=bar, where foo is a custom parameter and bar is an arbitrary hash distinct from the map hash.

Default Value

false

interactive?

optional interactive: boolean

If false, no mouse, touch, or keyboard listeners will be attached to the map, so it will not respond to interaction.

Default Value

true

keyboard?

optional keyboard: boolean

If true, keyboard shortcuts are enabled (see KeyboardHandler).

Default Value

true

localIdeographFontFamily?

optional localIdeographFontFamily: string | false

Defines a CSS font-family for locally overriding generation of glyphs in the 'CJK Unified Ideographs', 'Hiragana', 'Katakana' and 'Hangul Syllables' ranges. In these ranges, font settings from the map's style will be ignored, except for font-weight keywords (light/regular/medium/bold). Set to false, to enable font settings from the map's style for these glyph ranges. The purpose of this option is to avoid bandwidth-intensive glyph server requests. (See Use locally generated ideographs.)

Default Value

'sans-serif'

locale?

optional locale: any

A patch to apply to the default localization table for UI strings, e.g. control tooltips. The locale object maps namespaced UI string IDs to translated strings in the target language; see src/ui/default_locale.js for an example with all supported string IDs. The object may specify all UI strings (thereby adding support for a new translation) or only a subset of strings (thereby patching the default translation table).

Default Value

null

logoPosition?

optional logoPosition: ControlPosition

A string representing the position of the MapLibre wordmark on the map. Valid options are top-left,top-right, bottom-left, or bottom-right.

Default Value

'bottom-left'

maplibreLogo?

optional maplibreLogo: boolean

If true, the MapLibre logo will be shown.

Default Value

false

maxBounds?

optional maxBounds: LngLatBoundsLike

If set, the map will be constrained to the given bounds.

maxCanvasSize?

optional maxCanvasSize: [number, number]

The canvas' width and height max size. The values are passed as an array where the first element is max width and the second element is max height. You shouldn't set this above WebGl MAX_TEXTURE_SIZE. Defaults to [4096, 4096].

maxPitch?

optional maxPitch: number | null

The maximum pitch of the map (0-85). Values greater than 60 degrees are experimental and may result in rendering issues. If you encounter any, please raise an issue with details in the MapLibre project.

Default Value

maxTileCacheSize?

optional maxTileCacheSize: number

The maximum number of tiles stored in the tile cache for a given source. If omitted, the cache will be dynamically sized based on the current viewport which can be set using maxTileCacheZoomLevels constructor options.

Default Value

null

maxTileCacheZoomLevels?

optional maxTileCacheZoomLevels: number

The maximum number of zoom levels for which to store tiles for a given source. Tile cache dynamic size is calculated by multiplying maxTileCacheZoomLevels with the approximate number of tiles in the viewport for a given source.

Default Value

maxZoom?

optional maxZoom: number | null

The maximum zoom level of the map (0-24).

Default Value

minPitch?

optional minPitch: number | null

The minimum pitch of the map (0-85). Values greater than 60 degrees are experimental and may result in rendering issues. If you encounter any, please raise an issue with details in the MapLibre project.

Default Value

minZoom?

optional minZoom: number | null

The minimum zoom level of the map (0-24).

Default Value

pitch?

optional pitch: number

The initial pitch (tilt) of the map, measured in degrees away from the plane of the screen (0-85). If pitch is not specified in the constructor options, MapLibre GL JS will look for it in the map's style object. If it is not specified in the style, either, it will default to 0. Values greater than 60 degrees are experimental and may result in rendering issues. If you encounter any, please raise an issue with details in the MapLibre project.

Default Value

pitchWithRotate?

optional pitchWithRotate: boolean

If false, the map's pitch (tilt) control with "drag to rotate" interaction will be disabled.

Default Value

true

pixelRatio?

optional pixelRatio: number

The pixel ratio. The canvas' width attribute will be container.clientWidth * pixelRatio and its height attribute will be container.clientHeight * pixelRatio. Defaults to devicePixelRatio if not specified.

preserveDrawingBuffer?

optional preserveDrawingBuffer: boolean

If true, the map's canvas can be exported to a PNG using map.getCanvas().toDataURL(). This is false by default as a performance optimization.

Default Value

false

refreshExpiredTiles?

optional refreshExpiredTiles: boolean

If false, the map won't attempt to re-request tiles once they expire per their HTTP cacheControl/expires headers.

Default Value

true

renderWorldCopies?

optional renderWorldCopies: boolean

If true, multiple copies of the world will be rendered side by side beyond -180 and 180 degrees longitude. If set to false:

When the map is zoomed out far enough that a single representation of the world does not fill the map's entire container, there will be blank space beyond 180 and -180 degrees longitude.
Features that cross 180 and -180 degrees longitude will be cut in two (with one portion on the right edge of the map and the other on the left edge of the map) at every zoom level.

Default Value

true

scrollZoom?

optional scrollZoom: boolean | AroundCenterOptions

If true, the "scroll to zoom" interaction is enabled. AroundCenterOptions are passed as options to ScrollZoomHandler#enable.

Default Value

true

style

style: StyleSpecification | string

The map's MapLibre style. This must be a JSON object conforming to the schema described in the MapLibre Style Specification, or a URL to such JSON.

touchPitch?

optional touchPitch: boolean | AroundCenterOptions

If true, the "drag to pitch" interaction is enabled. An Object value is passed as options to TwoFingersTouchPitchHandler#enable.

Default Value

true

touchZoomRotate?

optional touchZoomRotate: boolean | AroundCenterOptions

If true, the "pinch to rotate and zoom" interaction is enabled. An Object value is passed as options to TwoFingersTouchZoomRotateHandler#enable.

Default Value

true

trackResize?

optional trackResize: boolean

If true, the map will automatically resize when the browser window resizes.

Default Value

true

transformCameraUpdate?

optional transformCameraUpdate: CameraUpdateTransformFunction

A callback run before the map's camera is moved due to user input or animation. The callback can be used to modify the new center, zoom, pitch and bearing. Expected to return an object containing center, zoom, pitch or bearing values to overwrite.

transformRequest?

optional transformRequest: RequestTransformFunction

A callback run before the Map makes a request for an external URL. The callback can be used to modify the url, set headers, or set the credentials property for cross-origin requests. Expected to return an object with a url property and optionally headers and credentials properties.

validateStyle?

optional validateStyle: boolean

If false, style validation will be skipped. Useful in production environment.

Default Value

true

zoom?

optional zoom: number

The initial zoom level of the map. If zoom is not specified in the constructor options, MapLibre GL JS will look for it in the map's style object. If it is not specified in the style, either, it will default to 0.

Default Value

Source

src/ui/map.ts:67