KBE3D / KBCore / Cesium / GoogleEarthEnterpriseTerrainProvider

类: GoogleEarthEnterpriseTerrainProvider

<div class="notice"> To construct a GoogleEarthEnterpriseTerrainProvider, call GoogleEarthEnterpriseTerrainProvider.fromMetadata. Do not call the constructor directly. </div>

Provides tiled terrain using the Google Earth Enterprise REST API.

示例

const geeMetadata = await GoogleEarthEnterpriseMetadata.fromUrl("http://www.example.com");
const gee = Cesium.GoogleEarthEnterpriseTerrainProvider.fromMetadata(geeMetadata);

参数

An object describing initialization options

属性

url

readonly url: string

Gets the name of the Google Earth Enterprise server url hosting the imagery.

---

proxy

readonly proxy: Proxy

Gets the proxy used by this provider.

---

tilingScheme

readonly tilingScheme: TilingScheme

Gets the tiling scheme used by this provider.

---

errorEvent

readonly errorEvent: Event

Gets an event that is raised when the imagery 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.

---

credit

readonly credit: Credit

Gets the credit to display when this terrain provider is active. Typically this is used to credit the source of the terrain.

---

hasWaterMask

readonly hasWaterMask: boolean

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.

---

hasVertexNormals

readonly hasVertexNormals: boolean

Gets a value indicating whether or not the requested tiles include vertex normals.

---

availability

readonly availability: TileAvailability | undefined

Gets an object that can be used to determine availability of terrain from this provider, such as at points and in rectangles. This property may be undefined if availability information is not available.

方法

fromMetadata()

static fromMetadata(metadata: GoogleEarthEnterpriseMetadata, options: ConstructorOptions): GoogleEarthEnterpriseTerrainProvider

Creates a GoogleEarthTerrainProvider from GoogleEarthEnterpriseMetadata

参数

metadata

GoogleEarthEnterpriseMetadata

A metadata object that can be used to share metadata requests with a GoogleEarthEnterpriseImageryProvider.

options

ConstructorOptions

An object describing initialization options

返回

GoogleEarthEnterpriseTerrainProvider

示例

const geeMetadata = await GoogleEarthEnterpriseMetadata.fromUrl("http://www.example.com");
const gee = Cesium.GoogleEarthEnterpriseTerrainProvider.fromMetadata(geeMetadata);

---

requestTileGeometry()

requestTileGeometry(x: number, y: number, level: number, request?: Request): Promise<TerrainData> | undefined

Requests the geometry for a given tile. The result must include terrain data and may optionally include a water mask and an indication of which child tiles are available.

参数

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.

request?

Request

The request object. Intended for internal use only.

返回

Promise<TerrainData> | undefined

A promise for the requested geometry. If this method returns undefined instead of a promise, it is an indication that too many requests are already pending and the request will be retried later.

---

getLevelMaximumGeometricError()

getLevelMaximumGeometricError(level: number): number

Gets the maximum geometric error allowed in a tile at a given level.

参数

level

number

The tile level for which to get the maximum geometric error.

返回

number

The maximum geometric error.

---

getTileDataAvailable()

getTileDataAvailable(x: number, y: number, level: number): boolean | undefined

Determines whether data for a tile is available to be loaded.

参数

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.

返回

boolean | undefined

Undefined if not supported, otherwise true or false.

---

loadTileDataAvailability()

loadTileDataAvailability(x: number, y: number, level: number): undefined

Makes sure we load availability data for a tile

参数

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.

返回

undefined

构造函数

构造函数

new GoogleEarthEnterpriseTerrainProvider(options?: ConstructorOptions): GoogleEarthEnterpriseTerrainProvider

参数

options?

ConstructorOptions

返回

GoogleEarthEnterpriseTerrainProvider