Spatial ontologies

From saref-portal#51 (closed)

From TR 103 781:

• SAREF4AGRI:
  • SAREF4AGRI uses the W3C Basic Geo Vocabulary, like SAREF4CITY but with a different prefix wgs84:. It declares class geo:SpatialThing, copies the definition of geo:location, geo:lat, geo:long, geo:alt, geo:Point. These concepts are not further used in the ontology and could be deleted. In particular, geo:long is defined as an OP in SAREF4AGRI while it is defined as a DP in SAREF4CITY. Therefore, using these two ontologies together would lead to an inconsistency. geo:Point is hijacked and defined as a subclass of geosp:Geometry.
  • SAREF4AGRI uses the OGC GeoSPARQL standard, like SAREFCITY but with a different prefix geo:. It copies the definition of geosp:hasGeometry, geosp:sfContains, geosp:sfWithin, geosp:Feature, geosp:Geometry, geosp:SpatialObject. Some classes in SAREF4CITY are defined as subclasses of geosp:Feature. Class saref:Device is hijacked and defined as a subclass of geosp:Feature.

and

SAREF Core now favours the use of geoSPARQL and the geo: prefix.

saref:PhysicalObject has not made its way to SAREF Core V3.2.1, but Clause 5.13 in TS 103 264 V3.2.1 states that:

An instance may be classified as both saref:FeatureOfInterest and geo:SpatialObject