# createOpenStreetMapImageryProvider

#### createOpenStreetMapImageryProvider(options)
Scene/createOpenStreetMapImageryProvider.js 60

  Creates a `UrlTemplateImageryProvider` instance that provides tiled imagery hosted by OpenStreetMap or another provider of Slippy tiles. The default url connects to OpenStreetMap's volunteer-run servers, so you must conform to their Tile Usage Policy.

  Name | Type | Description
  --- | --- | ---
  `options` | Object | optional Object with the following properties:
  Name | Type | Default | Description
  --- | --- | --- | ---
  `url` | String | `'//a.tile.openstreetmap.org'` | optional The OpenStreetMap server url.
  `fileExtension` | String | `'png'` | optional The file extension for images on the server.
  `proxy` | Object |  | optional A proxy to use for requests. This object is expected to have a getURL function which returns the proxied URL.
  `rectangle` | Rectangle | `Rectangle.MAX_VALUE` | optional The rectangle of the layer.
  `minimumLevel` | Number | `0` | optional The minimum level-of-detail supported by the imagery provider.
  `maximumLevel` | Number |  | optional The maximum level-of-detail supported by the imagery provider, or undefined if there is no limit.
  `ellipsoid` | Ellipsoid |  | optional The ellipsoid. If not specified, the WGS84 ellipsoid is used.
  `credit` | Credit | String | `'MapQuest, Open Street Map and contributors, CC-BY-SA'` | optional A credit for the data source, which is displayed on the canvas.

  ##### Throws:

  - DeveloperError : The rectangle and minimumLevel indicate that there are more than four tiles at the minimum level. Imagery providers with more than four tiles at the minimum level are not supported.

  ##### Example:

      var osm = Cesium.createOpenStreetMapImageryProvider({
          url : '//a.tile.openstreetmap.org/'
      });

  ##### See:

  - ArcGisMapServerImageryProvider
  - BingMapsImageryProvider
  - GoogleEarthImageryProvider
  - SingleTileImageryProvider
  - TileMapServiceImageryProvider
  - WebMapServiceImageryProvider
  - WebMapTileServiceImageryProvider
  - UrlTemplateImageryProvider
  - OpenStreetMap Wiki
  - Cross-Origin Resource Sharing