Gets a download URL. When the URL is accessed, the FeatureCollection is downloaded in one of several formats.
Returns a download URL or undefined if a callback was specified.
| Usage | Returns |
|---|---|
FeatureCollection.getDownloadURL(format, selectors, filename, callback) | Object|String |
| Argument | Type | Details |
|---|---|---|
this: featurecollection | FeatureCollection | The FeatureCollection instance. |
format | String, optional | The format of download, one of: "csv", "json", "geojson", "kml", "kmz" ("json" outputs GeoJSON). If unspecified, defaults to "csv". |
selectors | List, optional | Feature property names used to select the attributes to be downloaded. If unspecified, all properties are included. |
filename | String, optional | Name of the file to be downloaded; extension is appended by default. If unspecified, defaults to "table". |
callback | Function, optional | An optional callback. If not supplied, the call is made synchronously. |