To construct a BingMapsImageryProvider, call
Provides tiled imagery using the Bing Maps Imagery REST API.
BingMapsImageryProvider.fromUrl
. Do not call the constructor directly.
参数名称 | 类型 | 描述信息 |
---|---|---|
options |
BingMapsImageryProvider.ConstructorOptions | Object describing initialization options |
- BingMapsImageryProvider.fromUrl
- ArcGisMapServerImageryProvider
- GoogleEarthEnterpriseMapsProvider
- OpenStreetMapImageryProvider
- SingleTileImageryProvider
- TileMapServiceImageryProvider
- WebMapServiceImageryProvider
- WebMapTileServiceImageryProvider
- UrlTemplateImageryProvider
- Bing Maps REST Services
- Cross-Origin Resource Sharing
使用示例:
const bing = await Cesium.BingMapsImageryProvider.fromUrl(
"https://dev.virtualearth.net", {
key: "get-yours-at-https://www.bingmapsportal.com/",
mapStyle: Cesium.BingMapsStyle.AERIAL
});
参考:
成员(属性)
Gets or sets the URL to the Bing logo for display in the credit.
readonly credit : Credit
Gets the credit to display when this imagery provider is active. Typically this is used to credit
the source of the imagery.
The culture to use when requesting Bing Maps imagery. Not
all cultures are supported. See http://msdn.microsoft.com/en-us/library/hh441729.aspx
for information on the supported cultures.
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
.
Gets a value indicating whether or not the images provided by this imagery provider
include an alpha channel. If this property is false, an alpha channel, if present, will
be ignored. If this property is true, any images without an alpha channel will be treated
as if their alpha is 1.0 everywhere. Setting this property to false reduces memory usage
and texture upload time.
Gets the Bing Maps key.
Gets the additional map layer options as defined in https://learn.microsoft.com/en-us/bingmaps/rest-services/imagery/get-imagery-metadata#template-parameters/
readonly mapStyle : BingMapsStyle
Gets the type of Bing Maps imagery to load.
Gets the maximum level-of-detail that can be requested.
Gets the minimum level-of-detail that can be requested.
readonly proxy : Proxy
Gets the proxy used by this provider.
readonly rectangle : Rectangle
Gets the rectangle, in radians, of the imagery provided by this instance.
readonly tileDiscardPolicy : TileDiscardPolicy
Gets the tile discard policy. If not undefined, the discard policy is responsible
for filtering out "missing" tiles via its shouldDiscardImage function. If this function
returns undefined, no tiles are filtered.
Gets the height of each tile, in pixels.
Gets the width of each tile, in pixels.
readonly tilingScheme : TilingScheme
Gets the tiling scheme used by this provider.
Gets the name of the BingMaps server url hosting the imagery.
方法
static Cesium.BingMapsImageryProvider.fromUrl(url, options) → Promise.<BingMapsImageryProvider>
Creates an
ImageryProvider
which provides tiled imagery using the Bing Maps Imagery REST API.
参数名称 | 类型 | 描述信息 |
---|---|---|
url |
Resource | String | The url of the Bing Maps server hosting the imagery. |
options |
BingMapsImageryProvider.ConstructorOptions | Object describing initialization options |
返回值:
A promise that resolves to the created BingMapsImageryProvider
Throws:
-
RuntimeError : metadata does not specify one resource in resourceSets
使用示例:
const bing = await Cesium.BingMapsImageryProvider.fromUrl(
"https://dev.virtualearth.net", {
key: "get-yours-at-https://www.bingmapsportal.com/",
mapStyle: Cesium.BingMapsStyle.AERIAL
});
Converts a tile's quadkey used to request an image from a Bing Maps server into the
(x, y, level) position.
参数名称 | 类型 | 描述信息 |
---|---|---|
quadkey |
string | The tile's quad key |
- Bing Maps Tile System
- BingMapsImageryProvider#tileXYToQuadKey
参考:
Converts a tiles (x, y, level) position into a quadkey used to request an image
from a Bing Maps server.
参数名称 | 类型 | 描述信息 |
---|---|---|
x |
number | The tile's x coordinate. |
y |
number | The tile's y coordinate. |
level |
number | The tile's zoom level. |
- Bing Maps Tile System
- BingMapsImageryProvider#quadKeyToTileXY
参考:
getTileCredits(x, y, level) → Array.<Credit>
Gets the credits to be displayed when a given tile is displayed.
参数名称 | 类型 | 描述信息 |
---|---|---|
x |
number | The tile X coordinate. |
y |
number | The tile Y coordinate. |
level |
number | The tile level; |
返回值:
The credits to be displayed when the tile is displayed.
Picking features is not currently supported by this imagery provider, so this function simply returns
undefined.
参数名称 | 类型 | 描述信息 |
---|---|---|
x |
number | The tile X coordinate. |
y |
number | The tile Y coordinate. |
level |
number | The tile level. |
longitude |
number | The longitude at which to pick features. |
latitude |
number | The latitude at which to pick features. |
返回值:
Undefined since picking is not supported.
requestImage(x, y, level, request) → Promise.<ImageryTypes>|undefined
Requests the image for a given tile.
参数名称 | 类型 | 描述信息 |
---|---|---|
x |
number | The tile X coordinate. |
y |
number | The tile Y coordinate. |
level |
number | The tile level. |
request |
Request | 可选 The request object. Intended for internal use only. |
返回值:
A promise for the image that will resolve when the image is available, or
undefined if there are too many active requests to the server, and the request should be retried later.
定义的类型
Initialization options for the BingMapsImageryProvider constructor
属性:
属性名称 | 类型 | 可选 | 默认值 | 描述信息 |
---|---|---|---|---|
key |
string |
<可选> |
The Bing Maps key for your application, which can be created at https://www.bingmapsportal.com/. | |
tileProtocol |
string |
<可选> |
The protocol to use when loading tiles, e.g. 'http' or 'https'. By default, tiles are loaded using the same protocol as the page. | |
mapStyle |
BingMapsStyle |
<可选> |
BingMapsStyle.AERIAL | The type of Bing Maps imagery to load. |
mapLayer |
string |
<可选> |
Additional display layer options as defined on https://learn.microsoft.com/en-us/bingmaps/rest-services/imagery/get-imagery-metadata#template-parameters | |
culture |
string |
<可选> |
'' | The culture to use when requesting Bing Maps imagery. Not all cultures are supported. See http://msdn.microsoft.com/en-us/library/hh441729.aspx for information on the supported cultures. |
ellipsoid |
Ellipsoid |
<可选> |
Ellipsoid.default | The ellipsoid. If not specified, the default ellipsoid is used. |
tileDiscardPolicy |
TileDiscardPolicy |
<可选> |
The policy that determines if a tile
is invalid and should be discarded. By default, a DiscardEmptyTileImagePolicy
will be used, with the expectation that the Bing Maps server will send a zero-length response for missing tiles.
To ensure that no tiles are discarded, construct and pass a NeverTileDiscardPolicy for this parameter. |