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Ordnance Survey Linked Data

From: John Goodwin <John.Goodwin@ordnancesurvey.co.uk>
Date: Sat, 24 Oct 2009 01:51:19 +0100
Message-ID: <D72AF46149B1D74FBC8CD7090ED2446B01CD8B1A@EMAIL.ordsvy.gov.uk>
To: <public-lod@w3.org>

Hi,

Ordnance Survey now has some "linked" data up at:

data.ordnancesurvey.co.uk

This data includes identifiers and names for the administrative and voting areas of Great Britain. Explicit geometries are not included in the RDF, but there are topological relationships included between regions which should be of use for many applications. 

For a given region there are containment, overlap and spatial equivalence relations given between it and other regions. Furthermore, bordering information is given between "similar" entities. For example, explicit bordering information is given between wards. There is also bordering information between unitary authorities, counties etc.

If you wish to see the boundary on a map then area code and unit ID attributes can be used in the OS OpenSpace API to display the boundary.

So for example, for Southampton (http://data.ordnancesurvey.co.uk/id/7000000000037256) the area code is UTA (for unitary authority) and the unit ID is 37256. These values can be used as follows:

     /*here we set-up the our variable called 'boundaryLayer' with the strategies that we require.
    In this case, it is its ID and type i.e. Unitary Authority */
    boundaryLayer = new OpenSpace.Layer.Boundary("Boundaries", {
    strategies: [new OpenSpace.Strategy.BBOX()],
    admin_unit_ids: ["37256"],
    area_code: ["UTA"]
       });
    //then we add the bounadry to the map
    osMap.addLayer(boundaryLayer);
    //this effectively refreshes the map, so that the boundary is visible
    osMap.setCenter(osMap.getCenter());


to display the Southampton boundary. See http://openspace.ordnancesurvey.co.uk/openspace/support.html for more details.

John

(apologies for any typos but this was written whilest jetlagged) 
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Thank you for your cooperation.

Ordnance Survey
Romsey Road
Southampton SO16 4GU
Tel: 08456 050505
http://www.ordnancesurvey.co.uk

Received on Saturday, 24 October 2009 00:51:52 UTC

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