Class: ArcGISTiledElevationTerrainProvider

var terrainProvider = new SuperMap3D.ArcGISTiledElevationTerrainProvider({
  url : url,
  token : tk
});
viewer.terrainProvider = terrainProvider;

 

Members

creditCredit

Obtain the copyright information that needs to be displayed when the terrain provider is active, usually used to label the source of terrain data.

Note: This method should not be called until ArcGIS FiledElevationTerrainProvider # ready returns true.

errorEventEvent

Get the events triggered when the terrain provider encounters asynchronous errors.

By subscribing to this event, you will receive error notifications and may potentially recover from them. The event listener will be passed an instance of TileProviderError.

hasVertexNormalsBoolean

Get a Boolean value indicating whether the current terrain tile contains vertex normal data (hasVertexNormals attribute).

Vertex normals are used for terrain surface lighting calculations to achieve dynamic lighting effects.

Before calling, make sure that ArcGIS FiledElevationTerrainProvider # ready is true.

hasWaterMaskBoolean

Get a Boolean value indicating whether the current terrain provider includes a water surface mask (hasWaterMask attribute).

The water surface mask is used to distinguish between land and water areas, and supports dynamic wave rendering and other water surface effects.

Before calling, make sure that ArcGIS FiledElevationTerrainProvider # ready is true.

readyBoolean

Get a Boolean value indicating whether the terrain provider has completed initialization and is safe to use.

readonly readyPromisePromise.<Boolean>

Get a Promise object that parses to true after provider initialization is complete, used for asynchronous monitoring of the ready status of terrain services.

tilingSchemeGeographicTilingScheme

Obtain the tile partitioning scheme adopted by the current terrain provider. Note: This method should not be called until ArcGIS FiledElevationTerrainProvider # ready returns true.

Methods

getLevelMaximumGeometricError(level){Number}

Obtain the maximum geometric error allowed for a given level tile.

Name	Type	Description
level	Number	To obtain the tile level with the maximum geometric error.

Returns:

Type	Description
Number	Maximum geometric error.

getTileDataAvailable(x, y, level){Boolean}

Determine if data for tiles can be loaded.

Name	Type	Description
x	Number	Need to request the tile X coordinates of the geometry.
y	Number	Need to request the tile Y coordinate of the geometry.
level	Number	Need to request the tile hierarchy of the geometry.

Returns:

Type	Description
Boolean	If not supported, it is undefined; otherwise, it is true or false.

loadTileDataAvailability(x, y, level){undefined|Promise}

Ensure that we load the availability data of the tiles.

Name	Type	Description
x	Number	Need to request the tile X coordinates of the geometry.
y	Number	Need to request the tile Y coordinate of the geometry.
level	Number	Need to request the tile hierarchy of the geometry.

Returns:

Type	Description
undefined | Promise	If no content needs to be loaded, it is undefined; otherwise, it is a promise parsed when all necessary tiles are loaded.

requestTileGeometry(x, y, level, request){Promise.<TerrainData>|undefined}

To obtain the geometric data of the specified terrain tile, call (ready is true) 12 after ArcGISTiledElevationTerrainProvider # ready initialization is completed.

The returned result includes terrain geometry data and sub tile level status.

Name	Type	Description
x	Number	Request the X coordinate of the terrain tile corresponding to the geometric data.
y	Number	T requests the X coordinate of the terrain tile corresponding to the geometric data.
level	Number	Request tile hierarchy for geometric shapes.
request	Request	Request object. For internal use only.

Returns:

Type	Description
Promise.<TerrainData> | undefined	For the requested geometry, this method returns a Promise. If the method does not return a Promise but returns undefined, it indicates that there are too many pending requests at the moment, and the request will be retried later.