How to use OxPoints

OxPoints data can include time-based scoping in order to represent a property value that has changed. Please note that historic details are incomplete and largely based on anecdotal information.

You can use a query parameter in the format date=YYYY-MM-DD to request date-scoped data. The day or month (and associated hyphen) can be omitted, in which case defaults of 01 are used.

By way of example, consider the Computing Services, which has had three names through the course of its history:

• Computing Laboratory (1960)
• Computing Service (1990)
• Computing Services (2000)

List all units in the dataset

SELECT ?unit ?title WHERE {
  ?unit a oxp:Unit .
  ?unit dc:title ?title .
} LIMIT 10

List latitude and longitude for all "rooms" in the dataset

SELECT ?place ?lat ?long WHERE {
    ?place a oxp:Room .
    OPTIONAL {
        ?place spatialrelations:within* ?container .
        ?container geo:lat ?lat ; geo:long ?long .
        # This next bit excludes containers where there's something
        # between ?place and ?container that also has co-ordinates.
        NOT EXISTS {
            ?place spatialrelations:within* ?intermediate .
            ?intermediate spatialrelations:within+ ?container ;
                geo:lat ?intermediate_lat ;
                geo:long ?intermediate_long
        }
    }
}