December 13, 2007

Ordnance Survey Goes Open Source with OS OpenSpace

The Ordnance Survey has opened source code to web 2.0 applications. According to the OS,
Web developers are this week previewing a free online platform to help them experiment with their data. Under an application programming interface (API) developers will register for a feed of data to experiment with non-commercially. It includes a range of mapping scales covering the whole of Great Britain down to street level. Developers can access up to 30 000 “tiles” or extracts of data a day and up to 1 000 place name look-ups. OS OpenSpace allows users to add markers, lines and polygons on top of Ordnance Survey maps, search for place names with a gazetteer and display other location data from elsewhere on the web.

The platform is a JavaScript API that uses “slippy map” technology, so users can grab and move images in different directions. As well as the API itself, OS OpenSpace will include a community website so developers can discuss, review and collaborate on projects.

See For information on the Developer Programme see

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