map_url


map_url(double lat, double lon, int zoom [, const string option]) – Returns a URL string

OpenStreetMap: http://tile.openstreetmap.org/${zoom}/${xtile}/${ytile}.png
Google Maps: https://www.google.com/maps/@${lat},${lon},${zoom}z

Platforms: WhereOS, Spark, Hive
Class: hivemall.geospatial.MapURLUDF

More functions can be added to WhereOS via Python or R bindings or as Java & Scala UDF (user-defined function), UDAF (user-defined aggregation function) and UDTF (user-defined table generating function) extensions. Custom libraries can be added on via Settings-page or installed from WhereOS Store.

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