MapGISTerrainProvider

MapGISTerrainProvider MapGIS地形provider

new Cesium.MapGISTerrainProvider(options)

Name Type Description
options Object
Name Type Default Description
showSkirt Boolean true optional 是否显示裙边
range Object optional 数据范围
terrainFormat Boolean true optional 如果使用地形缓存值为false,否则为true
proxy Proxy optional 使用代理
requestVertexNormals Boolean true optional 是否使用地形法向
maxLevel Number 20 optional 最大级别

Members

Gets an object that can be used to determine availability of terrain from this provider, such as at points and in rectangles. This function should not be called before MapGISTerrainProvider#ready returns true. This property may be undefined if availability information is not available.
Gets the credit to display when this terrain provider is active. Typically this is used to credit the source of the terrain. This function should not be called before MapGISTerrainProvider#ready returns true.
Gets an event that is raised when the terrain provider encounters an asynchronous error. By subscribing to the event, you will be notified of the error and can potentially recover from it. Event listeners are passed an instance of TileProviderError.
Gets a value indicating whether or not the requested tiles include metadata. This function should not be called before MapGISTerrainProvider#ready returns true.
Gets a value indicating whether or not the requested tiles include vertex normals. This function should not be called before MapGISTerrainProvider#ready returns true.
Gets a value indicating whether or not the provider includes a water mask. The water mask indicates which areas of the globe are water rather than land, so they can be rendered as a reflective surface with animated waves. This function should not be called before MapGISTerrainProvider#ready returns true.
获取地形范围
Gets a value indicating whether or not the provider is ready for use.

readonly readyPromise : Promise.<Boolean>

Gets a promise that resolves to true when the provider is ready for use.
Boolean flag that indicates if the client should request metadata from the server. Metadata is appended to the standard tile mesh data only if the client requests the metadata and if the server provides a metadata.

requestVertexNormals : Boolean

Boolean flag that indicates if the client should request vertex normals from the server. Vertex normals data is appended to the standard tile mesh data only if the client requests the vertex normals and if the server provides vertex normals.
Boolean flag that indicates if the client should request a watermask from the server. Watermask data is appended to the standard tile mesh data only if the client requests the watermask and if the server provides a watermask.
是否显示地形
是否显示裙边(只有MapGIS的地形可以设置)

terrainColorTblInfo : Array

获取地形色表信息

terrainColorTblMaxHeight : Number

获取地形色表最大高程

terrainColorTblMinHeight : Number

获取地形色表最小高程
Gets the tiling scheme used by this provider. This function should not be called before MapGISTerrainProvider#ready returns true.

Methods

getLevelMaximumGeometricError(level)Number

Gets the maximum geometric error allowed in a tile at a given level.
Name Type Description
level Number The tile level for which to get the maximum geometric error.
Returns:
The maximum geometric error.

getTileDataAvailable(x, y, level)Boolean

Determines whether data for a tile is available to be loaded.
Name Type Description
x Number The X coordinate of the tile for which to request geometry.
y Number The Y coordinate of the tile for which to request geometry.
level Number The level of the tile for which to request geometry.
Returns:
Undefined if not supported or availability is unknown, otherwise true or false.

loadTileDataAvailability(x, y, level)undefined|Promise.<void>

Makes sure we load availability data for a tile
Name Type Description
x Number The X coordinate of the tile for which to request geometry.
y Number The Y coordinate of the tile for which to request geometry.
level Number The level of the tile for which to request geometry.
Returns:
Undefined if nothing need to be loaded or a Promise that resolves when all required tiles are loaded