TileCoordinatesImageryProvider

new TileCoordinatesImageryProvider(options)

An ImageryProvider that draws a box around every rendered tile in the tiling scheme, and draws a label inside it indicating the X, Y, Level coordinates of the tile. This is mostly useful for debugging terrain and imagery rendering problems.
Name Type Description
options Object optional Object with the following properties:
Name Type Default Description
tilingScheme TilingScheme new GeographicTilingScheme() optional The tiling scheme for which to draw tiles.
color Color Color.YELLOW optional The color to draw the tile box and label.
tileWidth Number 256 optional The width of the tile for level-of-detail selection purposes.
tileHeight Number 256 optional The height of the tile for level-of-detail selection purposes.
Source: Scene/TileCoordinatesImageryProvider.js, line 30

Members

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 TileCoordinatesImageryProvider#ready returns true.
Source: Scene/TileCoordinatesImageryProvider.js, line 169

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.
Source: Scene/TileCoordinatesImageryProvider.js, line 146

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. Setting this property to false reduces memory usage and texture upload time.
Source: Scene/TileCoordinatesImageryProvider.js, line 184

maximumLevel :Number

Gets the maximum level-of-detail that can be requested. This function should not be called before TileCoordinatesImageryProvider#ready returns true.
Source: Scene/TileCoordinatesImageryProvider.js, line 83

minimumLevel :Number

Gets the minimum level-of-detail that can be requested. This function should not be called before TileCoordinatesImageryProvider#ready returns true.
Source: Scene/TileCoordinatesImageryProvider.js, line 95

proxy :Proxy

Gets the proxy used by this provider.
Source: Scene/TileCoordinatesImageryProvider.js, line 47

ready :Boolean

Gets a value indicating whether or not the provider is ready for use.
Source: Scene/TileCoordinatesImageryProvider.js, line 157

rectangle :Rectangle

Gets the rectangle, in radians, of the imagery provided by this instance. This function should not be called before TileCoordinatesImageryProvider#ready returns true.
Source: Scene/TileCoordinatesImageryProvider.js, line 119

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 TileCoordinatesImageryProvider#ready returns true.
Source: Scene/TileCoordinatesImageryProvider.js, line 133

tileHeight :Number

Gets the height of each tile, in pixels. This function should not be called before TileCoordinatesImageryProvider#ready returns true.
Source: Scene/TileCoordinatesImageryProvider.js, line 71

tileWidth :Number

Gets the width of each tile, in pixels. This function should not be called before TileCoordinatesImageryProvider#ready returns true.
Source: Scene/TileCoordinatesImageryProvider.js, line 59

tilingScheme :TilingScheme

Gets the tiling scheme used by this provider. This function should not be called before TileCoordinatesImageryProvider#ready returns true.
Source: Scene/TileCoordinatesImageryProvider.js, line 107

Methods

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

Gets the credits to be displayed when a given tile is displayed.
Name Type Description
x Number The tile X coordinate.
y Number The tile Y coordinate.
level Number The tile level;
Returns:
The credits to be displayed when the tile is displayed.
Throws:
  • DeveloperError : getTileCredits must not be called before the imagery provider is ready.
Source: Scene/TileCoordinatesImageryProvider.js, line 201

pickFeatures(x, y, level, longitude, latitude) → Promise

Picking features is not currently supported by this imagery provider, so this function simply returns undefined.
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.
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. It may also be undefined if picking is not supported.
Source: Scene/TileCoordinatesImageryProvider.js, line 254

requestImage(x, y, level) → Promise

Requests the image for a given tile. This function should not be called before TileCoordinatesImageryProvider#ready returns true.
Name Type Description
x Number The tile X coordinate.
y Number The tile Y coordinate.
level Number The tile level.
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.
Source: Scene/TileCoordinatesImageryProvider.js, line 217