ArcGISVectorTiledLayer

A layer that can visualize data from an ArcGIS vector tile source or a local VectorTileCache. An ArcGIS Vector Tiled Layer is loaded from ArcGIS online, ArcGIS Enterprise, ArcGIS Server, or a local vector tile layer package file. The tile data format is optimized to reduce network bandwidth and reduce CPU load while rendering the tiles. Vector Tiled Layers are appropriate for basemap, reference and possibly operational layers. They do not contain any feature data, and do not support identify, search, or editing operations.

Vector tiles are an alternative to raster tile basemap layers, such as ArcGISTiledLayer. Instead of pixels (raster), the cartography is delivered using 2D points. The points describe lines, polygons, or the locations of labels and marker symbols. The file format of tiles is binary and conforms to the [Mapbox Vector Tile

  • Specification](https://mapbox.github.io/vector-tile-spec/). This specification allows a more continuous visual experience between levels of detail compared to raster tiles. The vector tile file format also requires less space than raster tiles.

You can create a vector tiled layer using either a URI or a portal item. The URI can point to a vector tile source, a vector tile style sheet, or a local vector tile package file. The portal item will contain a URI to a vector tile style sheet. The style sheet describes the appearance of the geometry and must be in the Mapbox GL Style format. The style sheet also contains a URI to a vector tile source. The source must be in the Mapbox TileJSON format. The source info includes a URI to a default style sheet.

More than one vector tile style sheet can use the same source. Both the source info and the style sheet are human readable JSON files.

Vector tile packages can also be downloaded from an ArcGIS Online vector tile service. The vector tile package is a single file (.vptk) that contains all of the tile data files, the source information, a style sheet, and the font and symbol marker resources required to display the map.

Vector tile packages are also distributed inside Mobile Map Packages. The MMPK contains JSON that points to the location of the vector tile style sheet or the root of the vector tile package data.

Since

200.1.0

See also

Constructors

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constructor(item: Item)

Creates an ArcGIS Vector Tiled Layer from a PortalItem.

constructor(uri: String)

Creates an ArcGIS Vector Tiled Layer from an ArcGIS Vector Tile Service URL, a Vector Tile Style Sheet URI, or a path to a local vector tile package (.vtpk) file.

constructor(vectorTileCache: VectorTileCache, itemResourceCache: ItemResourceCache? = null)

Creates an ArcGIS Vector Tiled Layer from a vector tile cache and an item resource cache containing a custom style for this vector tile layer.

Properties

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The item resource cache contains a custom style that can be applied to this layer. This method can only be called if the layer load status is LoadStatus.NotLoaded or LoadStatus.FailedToLoad otherwise ErrorType.CommonIllegalState exception will occur.

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The vector tile source info.

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The vector tile style info.

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val uri: String?

The URI of the ArcGIS vector tiled layer.

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The underlying vector tile cache or null if no vector tile cache is present. If this layer was created from a vector tile cache or a local file URI, then this property will return the vector tile cache. If this layer was created from a remote URI, this property will return null.

Inherited properties

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open override var apiKey: ApiKey?

An API key is a unique key used to authorize access to specific services and resources in ArcGIS Online. It is also used to monitor access to those services.

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The attribution text for the layer.

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open override val canChangeVisibility: Boolean

A flag indicating whether the layer content's visibility can be changed. A flag indicating whether the layer content visibility can be changed. Will return false if an error occurs.

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The description for the layer.

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The full extent of this layer, which is the extent where all layer data is contained. You can use this to zoom to all of the data contained in this layer. For feature layers, the extent is retrieved from its FeatureTable.extent.

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var id: String

The unique identifying string for the layer, as specified in a map or scene. The id is used by other parts of this API to refer to a specific Layer, such as in a set of FeatureFenceParameters or a FacilityLayerDefinition. If not supplied, all layers will be assigned a unique id when created.

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True if the layer supports identify, false otherwise. The value of this property may not be correct until the layer is in a fully loaded state.

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open override var isVisible: Boolean

The layer content's visibility. The layer content visibility. Will return false if an error occurs.

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val item: Item?

The item the layer has been created from.

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open override val loadStatus: StateFlow<LoadStatus>

The load status.

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The maximum scale for the layer. The maximum scale at which this layer is visible. If the map or scene is zoomed in beyond this scale, the layer will not be visible. A value of 0 means there is no maximum scale threshold and the layer will be visible at the smallest scale available for the map or scene. If the value is nil, there is no maximum scale. All of the connected map and scene views will be updated.

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The minimum scale for the layer. The minimum scale at which this layer is visible. If the map or scene is zoomed out beyond this scale, the layer will not be visible. A value of 0 means there is no minimum scale threshold and the layer will be visible at the largest scale available for the map or scene. If the value is nil, there is no minimum scale. All of the connected map and scene views will be updated.

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open override var name: String

The name of this layer.

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The opacity for the layer. The opacity of this layer as a value between 0 (fully transparent) and 1 (fully opaque). The default opacity value is 1.

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open override var showInLegend: Boolean

A flag indicating whether the layer content participates in the legend. A flag indicating whether the layer content is shown in the legend.

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The spatial reference of the layer.

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open override val subLayerContents: StateFlow<List<LayerContent>>

The sub layer contents of a layer content.

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val visibilityChanged: SharedFlow<Boolean>

Callback invoked when the visibility of the layer changes.

Functions

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open override fun clone(): ArcGISVectorTiledLayer

Inherited functions

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open override fun cancelLoad()

Cancels loading metadata for the Loadable object.

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open operator override fun equals(other: Any?): Boolean
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open suspend override fun fetchLegendInfos(): Result<List<LegendInfo>>

Fetches the list of legend info.

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open override fun hashCode(): Int
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open override fun isVisibleAtScale(scale: Double): Boolean

Returns the layer content's effective visibility at the specified scale. Returns the effective layer content visibility. This effective visibility takes care of the effective visibility of the parents at the specified scale. Will return false if an error occurs.

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open suspend override fun load(): Result<Unit>

Loads the metadata for the object.

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open suspend override fun retryLoad(): Result<Unit>

Loads or retries loading metadata for the object.