[Buildingdata] Re: data type for lat/long Well Known Text

[Christopher Gutteridge]

cc John Goodwin @ O.S.... John, who do we have to buy a pint for to get  
"asWKT" into your vocab meaning the W.K.T.+lat/long description of a 
spatial thing?

On 30/01/2013 12:13, Alexander Dutton wrote:
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> The Virtuoso folk use(d)
> <http://www.openlinksw.com/schemas/virtrdf#Geometry>:
>
> http://docs.openlinksw.com/virtuoso/rdfsparqlgeospat.html
>
> Our friends at Ordnance Survey use
> <http://data.ordnancesurvey.co.uk/ontology/geometry/asGML> for GML, so
> I've used an equivalent asWKT:
>
> https://data.ox.ac.uk/doc:oxpoints/23233759
> https://data.ox.ac.uk/doc:oxpoints/23233759/extent
>
> The WKT ones are consumed by OpenLayers at
> https://data.ox.ac.uk/explore/science-area/; I haven't managed to get it
> to play with GML.
>
> On 30/01/13 12:04, Christopher Gutteridge wrote:
>> In the Southampton buildings data;
> http://data.southampton.ac.uk/dataset/places.html we use the WKT markup
> <http://en.wikipedia.org/wiki/Well-known_text> in a dcterms:spatial
> literal to describe polygons. It's got more semantics than that, because
> it's WKT where the values are latitude and longitude.
>> I've been thinking of defining a data type for this to make it less
> hacky. eg.
>> <http://id.southampton.ac.uk/building/1>
>> <http://purl.org/dc/terms/spatial> "POLYGON((-1.3962631
> 50.9375993,-1.3960836 50.9378388,-1.3958288 50.9377629,-1.3960083
> 50.9375235,-1.3962631
> 50.9375993))"_*^^<http://purl.org/openorg/WKTLatLongType>*_ .
>> It will give it explicit semantics without making it more difficult to
> consume.
>> --
>> Christopher Gutteridge -- http://users.ecs.soton.ac.uk/cjg
>>
>> University of Southampton Open Data Service:
> http://data.southampton.ac.uk/
>> You should read the ECS Web Team blog:
> http://blogs.ecs.soton.ac.uk/webteam/
>>
>>
>> _______________________________________________
>> Buildingdata mailing list
>> Buildingdata at ecs.soton.ac.uk
>> http://mailman.ecs.soton.ac.uk/mailman/listinfo/buildingdata
>
> - -- 
> Alexander Dutton
> Developer, Office of the CIO; data.ox.ac.uk, OxPoints
> IT Services, University of Oxford
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-- 
Christopher Gutteridge -- http://users.ecs.soton.ac.uk/cjg

University of Southampton Open Data Service: http://data.southampton.ac.uk/
You should read the ECS Web Team blog: http://blogs.ecs.soton.ac.uk/webteam/