@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#> .

:LinearPattern
    a owl:Ontology ;
    dcterms:title "ITS Linear Referencing"@en ;
    skos:definition "Methodology module for linear elements, linear locations, and linear location geometries."@en ;
    dcterms:creator "Kenneth Vaughn" ;
    dcterms:created "Draft" ;
    dcterms:modified "2026-04-30"^^xsd:date ;
    dcterms:license "http://creativecommons.org/licenses/by/4.0/" ;
    its-core:draft "true" ;
    owl:imports :LocationCorePattern ;
    owl:imports :PointPattern ;
    owl:versionInfo "0.0.1" ;
    owl:versionIRI <https://w3id.org/itsdata/location/v1/LinearPattern/r0.1> ;
    vann:preferredNamespacePrefix "its-location" ;
    vann:preferredNamespaceUri "https://w3id.org/itsdata/location/v1/" .

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

:LinearFeature
    a owl:Class ;
    rdfs:subClassOf :Feature ;
    skos:definition "A spatial feature that extends along a defined path (typically between two point features or along a network element)."@en ;
    skos:note "The path can exhibit 3-dimensional characteristics."@en .

:LinearGeometry
    a owl:Class ;
    rdfs:subClassOf :Geometry ;
    skos:definition "A geometry that encodes a linear location using a specific method."@en .

:LinearByCode
    a owl:Class ;
    rdfs:subClassOf :LinearGeometry ;
    rdfs:subClassOf :CodedGeometry ;
    skos:definition "A linear geometry whose extent is not modelled here but can be resolved using :hasLookupCode and an external location referencing system."@en .

:LinearByLineString
    a owl:Class ;
    rdfs:subClassOf :LinearGeometry ;
    rdfs:subClassOf sf:LineString ;
    skos:definition "A linear geometry encoded as a LineString geometry."@en .

:LinearByLinearRing
    a owl:Class ;
    rdfs:subClassOf :LinearGeometry ;
    rdfs:subClassOf sf:LinearRing ;
    skos:definition "A linear geometry encoded as a LinearRing geometry."@en .

:LinearByMultiLineString
    a owl:Class ;
    rdfs:subClassOf :LinearGeometry ;
    rdfs:subClassOf sf:MultiLineString ;
    skos:definition "A linear geometry encoded as a MultiLineString geometry."@en .

:LinearByPointFeatures
    a owl:Class ;
    rdfs:subClassOf :LinearGeometry ;
    skos:definition "A linear geometry encoded as an ordered sequence of points."@en .

:LinearByPointGeometries
    a owl:Class ;
    rdfs:subClassOf :LinearGeometry ;
    skos:definition "A linear geometry encoded as an ordered sequence of point geometries."@en .

:PointFeatureList
    a owl:Class ;
    rdfs:subClassOf rdf:List ;
    rdfs:subClassOf [
        owl:onProperty    rdf:first ;
        owl:allValuesFrom :PointFeature ;
    ] ;
    skos:definition "An ordered list of member point features."@en .

:PointGeometryList
    a owl:Class ;
    rdfs:subClassOf rdf:List ;
    rdfs:subClassOf [
        owl:onProperty    rdf:first ;
        owl:allValuesFrom :PointGeometry ;
    ] ;
    skos:definition "An ordered list of member point geometries."@en .

:PointByLinearPosition
    a owl:Class ;
    rdfs:subClassOf :PointGeometry ;
    skos:definition "A point geometry defined by an offset along a linear geometry."@en .

:OffsetDistance
    a owl:Class ;
    rdfs:subClassOf :LocationThing ;
    skos:definition "An offset distance expressed either as a length or as a percentage."@en .

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

:hasPointList
    a owl:ObjectProperty ;
    rdfs:subPropertyOf :LocationObjectProperty ;
    schema:domainIncludes :LinearByPointFeatures ;
    schema:rangeIncludes :PointFeatureList ;
    skos:definition "Associates LinearByPointFeatures with its ordered list of member points."@en .

:hasPointGeometryList
    a owl:ObjectProperty ;
    rdfs:subPropertyOf :LocationObjectProperty ;
    schema:domainIncludes :LinearByPointGeometries ;
    schema:rangeIncludes :PointGeometryList ;
    skos:definition "Associates LinearByPointGeometries with its ordered list of member point geometries."@en .

:hasOffsetDistance
    a owl:ObjectProperty ;
    rdfs:subPropertyOf :LocationObjectProperty ;
    schema:domainIncludes :PointByLinearPosition ;
    schema:rangeIncludes :OffsetDistance ;
    skos:definition "Associates a PointByLinearPosition with its offset distance value."@en .

:offsetLength
    a owl:ObjectProperty ;
    rdfs:subPropertyOf :LocationObjectProperty ;
    schema:domainIncludes :OffsetDistance ;
    schema:rangeIncludes cdm1:Length ;
    skos:definition "Length form of an offset distance."@en .

:offsetPercentage
    a owl:ObjectProperty ;
    rdfs:subPropertyOf :LocationObjectProperty ;
    schema:domainIncludes :OffsetDistance ;
    schema:rangeIncludes cdm1:Ratio ;
    skos:definition "Percentage form of an offset distance."@en .

:alongLinearGeometry
    a owl:ObjectProperty ;
    rdfs:subPropertyOf :LocationObjectProperty ;
    schema:domainIncludes :PointByLinearPosition ;
    schema:rangeIncludes :LinearGeometry ;
    skos:definition "Associates a PointByLinearPosition with the linear geometry along which it is located."@en .

:basePoint
    a owl:ObjectProperty ;
    rdfs:subPropertyOf :LocationObjectProperty ;
    schema:domainIncludes :PointByLinearPosition ;
    schema:rangeIncludes :PointFeature ;
    skos:definition "The base/reference point from which the offset is measured."@en .

:directionPoint
    a owl:ObjectProperty ;
    rdfs:subPropertyOf :LocationObjectProperty ;
    schema:domainIncludes :PointByLinearPosition ;
    schema:rangeIncludes :PointFeature ;
    skos:definition "A second point used to establish the direction of offset relative to the basePoint."@en .