The Metainfo format used in OsmAnd to store the tile layers preferences. In OsmAnd we add a number of tables extending the format:
| Field | Spec and Purpose |
|---|---|
| "[url_template]" | String. URL template to download tiles with zoom - {1}, x - {2} , y - {3}, server name - {rnd} |
| "[randoms]" | String. The names of the mirrors of server. Comma-separated. One of these values will randomly replace the placeholder {rdn} in "url" field. |
| "[minzoom]" | Integer. Min zoom level. In regular format (OSM, Google maps). |
| "[maxzoom]" | Integer. Max zoom level. In regular format (OSM, Google maps). |
| "[ellipsoid]" | Bool "true" or "false". True for Elliptic Mercator (Yandex tiles). False for regular Spheric Web Mercator (OSM, Google maps) |
| "[inverted_y]" | Bool "true" or "false". True for inverted Y tile number (Nakarte.me tiles). |
| "[tile_size]" | Integer 256 or 512. Side size of downloading tile in px. |
| "[img_density]" | Integer. Tile image density. |
| "[avg_img_size]" | Integer.Average tile image size. |
| "[expiration_time_minutes]" | Integer. Specifies if tiles shall expire after the given number of minutes. They would still be displayed, but also re-downloaded. |
The class supporting this tile source is at or near https://github.com/osmandapp/Osmand/blob/master/OsmAnd-java/src/main/java/net/osmand/map/TileSourceManager.java#L28.