Class: ArcGisMapServerImageryProvider

ArcGisMapServerImageryProvider

new ArcGisMapServerImageryProvider(options)

Provides tiled imagery hosted by an ArcGIS MapServer. By default, the server's pre-cached tiles are used, if available.
Parameters:
Name Type Description
options Object Object with the following properties:
Properties
Name Type Attributes Default Description
url String The URL of the ArcGIS MapServer service.
token String <optional>
 The ArcGIS token used to authenticate with the ArcGIS MapServer service.
tileDiscardPolicy TileDiscardPolicy <optional>
 The policy that determines if a tile is invalid and should be discarded. If this value is not specified, a default DiscardMissingTileImagePolicy is used for tiled map servers, and a NeverTileDiscardPolicy is used for non-tiled map servers. In the former case, we request tile 0,0 at the maximum tile level and check pixels (0,0), (200,20), (20,200), (80,110), and (160, 130). If all of these pixels are transparent, the discard check is disabled and no tiles are discarded. If any of them have a non-transparent color, any tile that has the same values in these pixel locations is discarded. The end result of these defaults should be correct tile discarding for a standard ArcGIS Server. To ensure that no tiles are discarded, construct and pass a NeverTileDiscardPolicy for this parameter.
proxy Proxy <optional>
 A proxy to use for requests. This object is expected to have a getURL function which returns the proxied URL, if needed.
usePreCachedTilesIfAvailable Boolean <optional>
 true If true, the server's pre-cached tiles are used if they are available. If false, any pre-cached tiles are ignored and the 'export' service is used.
layers String <optional>
 A comma-separated list of the layers to show, or undefined if all layers should be shown.
enablePickFeatures Boolean <optional>
 true If true, ArcGisMapServerImageryProvider#pickFeatures will invoke the Identify service on the MapServer and return the features included in the response. If false, ArcGisMapServerImageryProvider#pickFeatures will immediately return undefined (indicating no pickable features) without communicating with the server. Set this property to false if you don't want this provider's features to be pickable. Can be overridden by setting the ArcGisMapServerImageryProvider#enablePickFeatures property on the object.
rectangle Rectangle <optional>
 Rectangle.MAX_VALUE The rectangle of the layer. This parameter is ignored when accessing a tiled layer.
tilingScheme TilingScheme <optional>
 new GeographicTilingScheme() The tiling scheme to use to divide the world into tiles. This parameter is ignored when accessing a tiled server.
ellipsoid Ellipsoid <optional>
 The ellipsoid. If the tilingScheme is specified and used, this parameter is ignored and the tiling scheme's ellipsoid is used instead. If neither parameter is specified, the WGS84 ellipsoid is used.
tileWidth Number <optional>
 256 The width of each tile in pixels. This parameter is ignored when accessing a tiled server.
tileHeight Number <optional>
 256 The height of each tile in pixels. This parameter is ignored when accessing a tiled server.
maximumLevel Number <optional>
 The maximum tile level to request, or undefined if there is no maximum. This parameter is ignored when accessing a tiled server.
Source:
See:
Example
var esri = new Cesium.ArcGisMapServerImageryProvider({
    url : 'https://services.arcgisonline.com/ArcGIS/rest/services/World_Imagery/MapServer'
});

Members

(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. This function should not be called before ArcGisMapServerImageryProvider#ready returns true.
Type:
Source:

enablePickFeatures :Boolean

Gets or sets a value indicating whether feature picking is enabled. If true, ArcGisMapServerImageryProvider#pickFeatures will invoke the "identify" operation on the ArcGIS server and return the features included in the response. If false, ArcGisMapServerImageryProvider#pickFeatures will immediately return undefined (indicating no pickable features) without communicating with the server.
Type:
  • Boolean
Default Value:
  • true
Source:

(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.
Type:
Source:

(readonly) hasAlphaChannel :Boolean

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. When this property is false, memory usage and texture upload time are reduced.
Type:
  • Boolean
Default Value:
  • true
Source:

(readonly) maximumLevel :Number

Gets the maximum level-of-detail that can be requested. This function should not be called before ArcGisMapServerImageryProvider#ready returns true.
Type:
  • Number
Source:

(readonly) minimumLevel :Number

Gets the minimum level-of-detail that can be requested. This function should not be called before ArcGisMapServerImageryProvider#ready returns true.
Type:
  • Number
Source:

(readonly) proxy :Proxy

Gets the proxy used by this provider.
Type:
  • Proxy
Source:

(readonly) ready :Boolean

Gets a value indicating whether or not the provider is ready for use.
Type:
  • Boolean
Source:

(readonly) readyPromise :Promise.<Boolean>

Gets a promise that resolves to true when the provider is ready for use.
Type:
  • Promise.<Boolean>
Source:

(readonly) rectangle :Rectangle

Gets the rectangle, in radians, of the imagery provided by this instance. This function should not be called before ArcGisMapServerImageryProvider#ready returns true.
Type:
Source:

(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. This function should not be called before ArcGisMapServerImageryProvider#ready returns true.
Type:
Source:

(readonly) tileHeight :Number

Gets the height of each tile, in pixels. This function should not be called before ArcGisMapServerImageryProvider#ready returns true.
Type:
  • Number
Source:

(readonly) tileWidth :Number

Gets the width of each tile, in pixels. This function should not be called before ArcGisMapServerImageryProvider#ready returns true.
Type:
  • Number
Source:

(readonly) tilingScheme :TilingScheme

Gets the tiling scheme used by this provider. This function should not be called before ArcGisMapServerImageryProvider#ready returns true.
Type:
Source:

(readonly) token :String

Gets the ArcGIS token used to authenticate with the ArcGis MapServer service.
Type:
  • String
Source:

(readonly) url :String

Gets the URL of the ArcGIS MapServer.
Type:
  • String
Source:

(readonly) usingPrecachedTiles :Boolean

Gets a value indicating whether this imagery provider is using pre-cached tiles from the ArcGIS MapServer. If the imagery provider is not yet ready (ArcGisMapServerImageryProvider#ready), this function will return the value of `options.usePreCachedTilesIfAvailable`, even if the MapServer does not have pre-cached tiles.
Type:
  • Boolean
Default Value:
  • true
Source:

Methods

getTileCredits(x, y, level) → {Array.<Credit>}

Gets the credits to be displayed when a given tile is displayed.
Parameters:
Name Type Description
x Number The tile X coordinate.
y Number The tile Y coordinate.
level Number The tile level;
Source:
Throws:
getTileCredits must not be called before the imagery provider is ready.
Type
DeveloperError
Returns:
The credits to be displayed when the tile is displayed.
Type
Array.<Credit>

pickFeatures(x, y, level, longitude, latitude) → {Promise.<Array.<ImageryLayerFeatureInfo>>|undefined}

/** Asynchronously determines what features, if any, are located at a given longitude and latitude within a tile. This function should not be called before ImageryProvider#ready returns true.
Parameters:
Name Type Description
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.
Source:
Throws:
pickFeatures must not be called before the imagery provider is ready.
Type
DeveloperError
Returns:
A promise for the picked features that will resolve when the asynchronous picking completes. The resolved value is an array of ImageryLayerFeatureInfo instances. The array may be empty if no features are found at the given location.
Type
Promise.<Array.<ImageryLayerFeatureInfo>> | undefined

requestImage(x, y, level) → {Promise.<(Image|Canvas)>|undefined}

Requests the image for a given tile. This function should not be called before ArcGisMapServerImageryProvider#ready returns true.
Parameters:
Name Type Description
x Number The tile X coordinate.
y Number The tile Y coordinate.
level Number The tile level.
Source:
Throws:
requestImage must not be called before the imagery provider is ready.
Type
DeveloperError
Returns:
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. The resolved image may be either an Image or a Canvas DOM object.
Type
Promise.<(Image|Canvas)> | undefined