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Tiles are 256x256 pixels; At the outer most zoom level, 0, the entire world can be rendered in a single map tile. Each zoom level doubles in both dimensions, so a single tile is replaced by 4 tiles when zooming in. This means that about 22 zoom levels are sufficient for most practical purposes.
This map was generated by OpenStreetMap contributors using GPS data, and other 'free' sources. (see ) In data : OSM mapping is licensed under the Open Database Licence and Database Contents Licence; In tiles:
OpenStreetMap}} – Use this template to insert a navigation box at the bottom of an OpenStreetMap-related article {{OpenStreetMapThumb}} - Use this template on an article page to include a thumbnail of an OpenStreetMap image. {{OpenStreetMap map}} - Use this template on an image page to indicate that it was created from OpenStreetMap data.
This template adds a link, or frame, which will display a map from OpenStreetMap together with specified map data. The map and data can be viewed in a scrollable and zoomable fullscreen window. The map data can come from: data stored in GeoJSON format on Wikipedia or Commons; line/polygon features in OpenStreetMap.
This map was generated by OpenStreetMap contributors using GPS data, and other 'free' sources. (see ) In data : OSM mapping is licensed under the Open Database Licence and Database Contents Licence; In tiles:
[[Category:OpenStreetMap templates]] to the <includeonly> section at the bottom of that page. Otherwise, add <noinclude>[[Category:OpenStreetMap templates]]</noinclude> to the end of the template code, making sure it starts on the same line as the code's last character.
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The OpenStreetMap data primitives are stored and processed in different formats. OpenStreetMap server uses PostgreSQL database, with one table for each data primitive, with individual objects stored as rows. [21] [22] The data structure is defined as part of the OSM API. The current version of the API, v0.6, was released in 2009.