@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
@prefix owl: <http://www.w3.org/2002/07/owl#> .
@prefix : <https://w3id.org/itsdata/location/v1/> .
@prefix dcterms: <http://purl.org/dc/terms/> .
@prefix its-core: <https://w3id.org/itsdata/core/v1/> .
@prefix cdm1: <https://w3id.org/citydata/part1/v1/> .
@prefix schema: <https://schema.org/> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .
@prefix vann: <http://purl.org/vocab/vann/> .
@prefix sf: <http://www.opengis.net/ont/sf#> .

:AreaPattern
    a owl:Ontology ;
    dcterms:title "ITS Area Referencing"@en ;
    skos:definition "Methodology module for area-based locations and area location representations."@en ;
    dcterms:creator "Kenneth Vaughn" ;
    dcterms:created "Draft" ;
    dcterms:modified "2026-05-01"^^xsd:date ;
    dcterms:license "http://creativecommons.org/licenses/by/4.0/" ;
    its-core:draft "true" ;
    owl:imports :LocationCorePattern ;
    owl:imports :LinearPattern ;
    owl:versionInfo "0.0.1" ;
    owl:versionIRI <https://w3id.org/itsdata/location/v1/AreaPattern/r0.1> ;
    vann:preferredNamespacePrefix "its-location" ;
    vann:preferredNamespaceUri "https://w3id.org/itsdata/location/v1/" .

#################################################################
# Classes
#################################################################

:AreaLocation
    a owl:Class ;
    rdfs:subClassOf :Location ;
    skos:definition "A spatial location enclosed within a two-dimensional boundary or boundaries across a defined surface."@en .

:AreaRepresentation
    a owl:Class ;
    rdfs:subClassOf :Geometry ;
    skos:definition "A geometry/representation that encodes an area location using a specific method."@en ;
    skos:note "The boundary can consist of a single curvilinear line (e.g. a circle) or multiple curvilinear lines (e.g. the boundaries of city limits) and can consist of multiple enclosed areas."@en ;
    skos:example "The British Isles."@en .

:AreaByPolygon
    a owl:Class ;
    rdfs:subClassOf :AreaRepresentation ;
    rdfs:subClassOf sf:Polygon ;
    skos:definition "An area representation encoded as a Polygon geometry."@en .

:AreaByMultiPolygon
    a owl:Class ;
    rdfs:subClassOf :AreaRepresentation ;
    rdfs:subClassOf sf:MultiPolygon ;
    skos:definition "An area representation encoded as a MultiPolygon geometry."@en .

:AreaByRectangle
    a owl:Class ;
    rdfs:subClassOf :AreaRepresentation ;
    skos:definition "An area representation encoded as a rectangle, defined by a lower-left corner and an upper-right corner."@en .

:AreaByCircle
    a owl:Class ;
    rdfs:subClassOf :AreaRepresentation ;
    skos:definition "An area representation encoded as a circle."@en .

:AreaByGrid
    a owl:Class ;
    rdfs:subClassOf :AreaRepresentation ;
    rdfs:subClassOf :AreaByRectangle ;
    skos:definition "An area representation encoded as a grid. The rectangle defined by lower-left and upper-right is the base cell, which is replicated eastward (columns) and northward (rows)."@en .

:AreaByLinearBoundaries
    a owl:Class ;
    rdfs:subClassOf :AreaRepresentation ;
    skos:definition "An area representation encoded as a set of linear boundary representations."@en .

:AreaByCode
    a owl:Class ;
    rdfs:subClassOf :AreaRepresentation ;
    rdfs:subClassOf :LocationCode ;
    skos:definition "An area representation encoded as a code that references an entry in an external location referencing system."@en .

#################################################################
# Properties
#################################################################

:hasLinearBoundary
    a owl:ObjectProperty ;
    rdfs:subPropertyOf :LocationObjectProperty ;
    schema:domainIncludes :AreaByLinearBoundaries ;
    schema:rangeIncludes :LinearLocation ;
    skos:definition "Associates an area representation with linear locations that define its boundary."@en .

:hasCenter
    a owl:ObjectProperty ;
    rdfs:subPropertyOf :LocationObjectProperty ;
    schema:domainIncludes :AreaByCircle ;
    schema:rangeIncludes :PointLocation ;
    skos:definition "Center point of a circle area representation."@en .

:radius
    a owl:ObjectProperty ;
    rdfs:subPropertyOf :LocationObjectProperty ;
    schema:domainIncludes :AreaByCircle ;
    schema:rangeIncludes cdm1:Length ;
    skos:definition "Radius of a circle area representation."@en .

:hasLowerLeft
    a owl:ObjectProperty ;
    rdfs:subPropertyOf :LocationObjectProperty ;
    schema:domainIncludes :AreaByRectangle ;
    schema:rangeIncludes :PointLocation ;
    skos:definition "Lower-left (southwestern) point of a rectangle area representation."@en .

:hasUpperRight
    a owl:ObjectProperty ;
    rdfs:subPropertyOf :LocationObjectProperty ;
    schema:domainIncludes :AreaByRectangle ;
    schema:rangeIncludes :PointLocation ;
    skos:definition "Upper-right (northeastern) point of a rectangle area representation."@en .

:numColumns
    a owl:DatatypeProperty ;
    rdfs:subPropertyOf :LocationDataProperty ;
    schema:domainIncludes :AreaByGrid ;
    schema:rangeIncludes xsd:nonNegativeInteger ;
    skos:definition "Number of times the base rectangle cell is replicated eastward in a grid area representation. The width of the area is the width of the base cell multiplied by the number of columns."@en .

:numRows
    a owl:DatatypeProperty ;
    rdfs:subPropertyOf :LocationDataProperty ;
    schema:domainIncludes :AreaByGrid ;
    schema:rangeIncludes xsd:nonNegativeInteger ;
    skos:definition "Number of times the base rectangle cell is replicated northward in a grid area representation. The height of the area is the height of the base cell multiplied by the number of rows."@en .