This object is normally not instantiated directly, use
Provides 2D image tiles from Google 2D Tiles.
Google 2D Tiles can only be used with the Google geocoder.
Google2DImageryProvider.fromIonAssetId
or Google2DImageryProvider.fromUrl
.
Name | Type | Description |
---|---|---|
options |
Google2DImageryProvider.ConstructorOptions | Object describing initialization options |
Examples:
// Google 2D imagery provider
const googleTilesProvider = Cesium.Google2DImageryProvider.fromIonAssetId({
assetId: 3830184
});
// Use your own Google api key
Cesium.GoogleMaps.defaultApiKey = "your-api-key";
const googleTilesProvider = Cesium.Google2DImageryProvider.fromUrl({
mapType: "SATELLITE"
});
See:
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.
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. When this property is false, memory usage
and texture upload time are reduced.
Gets the maximum level-of-detail that can be requested.
Gets the minimum level-of-detail that can be requested. Generally,
a minimum level should only be used when the rectangle of the imagery is small
enough that the number of tiles at the minimum level is small. An imagery
provider with more than a few tiles at the minimum level will lead to
rendering problems.
readonly proxy : Proxy
Gets the proxy used by this provider.
readonly rectangle : Rectangle
Gets the rectangle, in radians, of the imagery provided by the 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 the provider.
Gets the URL of the Google 2D Imagery server.
Methods
static Cesium.Google2DImageryProvider.fromIonAssetId(options) → Promise.<Google2DImageryProvider>
Creates an
ImageryProvider
which provides 2D global tiled imagery from Google 2D Tiles, streamed using the Cesium ion REST API.
Name | Type | Description | ||||||||||||||||||||||||||||||||||||||||||||||||
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options |
object |
Object with the following properties:
|
Returns:
A promise that resolves to the created Google2DImageryProvider.
Examples:
// Google 2D imagery provider
const googleTilesProvider = Cesium.Google2DImageryProvider.fromIonAssetId({
assetId: 3830184
});
// Google 2D roadmap overlay with custom styles
const googleTileProvider = Cesium.Google2DImageryProvider.fromIonAssetId({
assetId: 3830184,
overlayLayerType: "layerRoadmap",
styles: [
{
stylers: [{ hue: "#00ffe6" }, { saturation: -20 }],
},
{
featureType: "road",
elementType: "geometry",
stylers: [{ lightness: 100 }, { visibility: "simplified" }],
},
],
});
static Cesium.Google2DImageryProvider.fromUrl(options) → Promise.<Google2DImageryProvider>
Creates an
ImageryProvider
which provides 2D global tiled imagery from Google 2D Tiles.
Name | Type | Description | ||||||||||||||||||||||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
options |
object |
Object with the following properties:
|
Returns:
A promise that resolves to the created Google2DImageryProvider.
Examples:
// Use your own Google api key
Cesium.GoogleMaps.defaultApiKey = "your-api-key";
const googleTilesProvider = Cesium.Google2DImageryProvider.fromUrl({
mapType: "satellite"
});
// Google 2D roadmap overlay with custom styles
Cesium.GoogleMaps.defaultApiKey = "your-api-key";
const googleTileProvider = Cesium.Google2DImageryProvider.fromUrl({
overlayLayerType: "layerRoadmap",
styles: [
{
stylers: [{ hue: "#00ffe6" }, { saturation: -20 }],
},
{
featureType: "road",
elementType: "geometry",
stylers: [{ lightness: 100 }, { visibility: "simplified" }],
},
],
});
getTileCredits(x, y, level) → Array.<Credit>|undefined
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.
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:
Undefined since picking is not supported.
requestImage(x, y, level, request) → Promise.<ImageryTypes>|undefined
Requests the image for a given tile.
Name | Type | Description |
---|---|---|
x |
number | The tile X coordinate. |
y |
number | The tile Y coordinate. |
level |
number | The tile level. |
request |
Request | optional The request object. Intended for internal use only. |
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.
Type Definitions
Initialization options for the Google2DImageryProvider constructor
Properties:
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options |
object | Object with the following properties:
Properties
|