CustomGeometrySource

Custom Vector Source, allows using FeatureCollections.

CustomGeometrySource uses a coalescing model for frequent data updates targeting the same tile id, which means, that the in-progress request as well as the last scheduled request are guaranteed to finish. Any requests scheduled meanwhile can be canceled.

Constructors

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constructor(id: String?, provider: GeometryTileProvider?)

Create a CustomGeometrySource

constructor(id: String?, options: CustomGeometrySourceOptions?, provider: GeometryTileProvider?)

Types

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object Companion

Properties

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Functions

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Retrieve the source attribution.

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open fun getId(): String

Retrieve the source id

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Retrieve current maximum overscale factor for parent tiles.

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Retrieve the minimum tile update interval, which is used to throttle the tile update network requests.

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Retrieve current pre-fetching zoom delta.

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Invalidate previously provided features within a given bounds at all zoom levels. Invoking this method will result in new requests to GeometryTileProvider for regions that contain, include, or intersect with the provided bounds.

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fun invalidateTile(zoomLevel: Int, x: Int, y: Int)

Invalidate the geometry contents of a specific tile. Invoking this method will result in new requests to GeometryTileProvider for visible tiles.

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Retrieve whether or not the fetched tiles for the given source should be stored in the local cache

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fun querySourceFeatures(filter: Expression?): List<Feature>

Queries the source for features.

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open fun setDetached()
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open fun setMaxOverscaleFactorForParentTiles(@Nullable maxOverscaleFactor: Int?)

When a set of tiles for a current zoom level is being rendered and some of the ideal tiles that cover the screen are not yet loaded, parent tile could be used instead. This might introduce unwanted rendering side-effects, especially for raster tiles that are overscaled multiple times. This method sets the maximum limit for how much a parent tile can be overscaled.

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Sets the minimum tile update interval, which is used to throttle the tile update network requests.

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open fun setPrefetchZoomDelta(@Nullable delta: Int?)

Set the tile pre-fetching zoom delta for current source. Pre-fetching makes sure that a low-resolution tile at the (current_zoom_level - delta) is rendered as soon as possible at the expense of a little bandwidth. If delta has not been set or set to null, it will use the value in MapLibreMap instance.

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fun setTileData(zoomLevel: Int, x: Int, y: Int, data: FeatureCollection)

Set or update geometry contents of a specific tile. Use this method to update tiles for which GeometryTileProvider was previously invoked. This method can be called from background threads.

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open fun setVolatile(value: Boolean)

Set a flag defining whether or not the fetched tiles for the given source should be stored in the local cache