• GeoQualifierSchema

Neo Geo Schema as W3C Geo vocabulary qualifiers

Introduction

• This schema specification is designed to harmonize with other well-known rdf vocabularies, such as Dublin Core (DC,DCQ), Friend of a Friend (FOAF) and Basic Geo (WGS84 lat/long) Vocabulary (GEO) for Geo_Update. In addition, this specification tries to harmonize the Simple version and the GML version of GeoRSS.

Outline

A basic part of the schema is shown in the figure as follows. The data of the sample (instance) has been also described at upper part of figure.

The variation of data with roughly the same meaning is shown in the figure as follows.

And, in an original proposal, the enhancing notation of the point property seems not to conform to RDF/XML.

• It is considered that the blank node and rdf:value can be omitted when the value of property includes only one main value. Then, the blank node and rdf:value have been used. In addition, this rdf:value behaves as a harmonizer between the Simple version and the GML version.

Schema described with RDF/XML

<?xml version="1.0" encoding="UTF-8"?>
<rdf:RDF
 xml:base="http://www.w3.org/2005/Incubator/geo/geoq#"
 xmlns:dcterms="http://purl.org/dc/terms/"
 xmlns:rss="http://purl.org/rss/1.0/"
 xmlns:owl="http://www.w3.org/2002/07/owl#"
 xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#"
 xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
 xmlns:dc="http://purl.org/dc/elements/1.1/"
 xmlns:dcq="http://purl.org/dc/terms/"
 xmlns:foaf="http://xmlns.com/foaf/0.1/"
 xmlns:geo="http://www.w3.org/2003/01/geo/wgs84_pos#"
 xmlns:geoq="http://www.w3.org/2005/Incubator/geo/geoq#"
>
<!-- W3C Geo vocabulary qualifiers -->
<rdf:Description rdf:about="http://www.w3.org/2005/Incubator/geo/geoq#">
 <dc:title>W3C Geo vocabulary qualifiers</dc:title>
 <dc:date>$Date: 2010/03/31 18:15:48 $</dc:date>
 <rdfs:label>geoq</rdfs:label>
 <rdfs:comment>
 This specification is designed to harmonize with other well-known rdf vocabularies. (DC,GEO,FOAF)

 Recent changes to this schema:
 revision 1.0
 date: 2006/12/22 12:22:00;  author: Satoru Takagi;  state: Exp;
 date: 2007/2/9 ;  author: Satoru Takagi;  add geoq:elev property into example;

 </rdfs:comment>
</rdf:Description>


<!-- Example Description -->

<rdf:Description rdf:ID="thing0">
 <geoq:where rdf:resource="#thing1"/>
 <geoq:point rdf:resource="#thing1"/>
 <geoq:point>+35.135+133.248/</geoq:point>
 <geoq:elev>23</geoq:elev>
 <geoq:point geoq:radius="500" geoq:floor="2" rdf:value="+35.135+133.248/"/>
</rdf:Description>

<rdf:Description rdf:ID="thing1">
 <rdf:type rdf:resource="http://www.w3.org/2005/Incubator/geo/geoq#Point"/>
 <geo:lat>35.135</geo:lat>
 <geo:long>133.248</geo:long>
 <geoq:pos>+35.135+133.248/</geoq:pos>
 <rdf:value>+35.135+133.248/</rdf:value>
</rdf:Description>


<!-- Schema Start -->

<!-- Base and Point -->

<rdfs:Class rdf:ID="Feature">
 <rdfs:subClassOf rdf:resource="http://www.w3.org/2003/01/geo/wgs84_pos#SpatialThing"/>
</rdfs:Class>

<rdfs:Class rdf:ID="Point">
 <rdfs:subClassOf rdf:resource="#Feature"/>
 <rdfs:subClassOf rdf:resource="http://www.w3.org/2003/01/geo/wgs84_pos#Point"/>
</rdfs:Class>

<rdf:Property rdf:ID="where">
 <rdfs:subPropertyOf rdf:resource="http://purl.org/dc/terms/spatial"/>
 <rdfs:domain rdf:resource="http://www.w3.org/2003/01/geo/wgs84_pos#SpatialThing"/>
 <rdfs:range rdf:resource="#Feature"/>
</rdf:Property>

<rdf:Property rdf:ID="point">
 <rdfs:subPropertyOf rdf:resource="#where"/>
 <rdfs:range rdf:resource="#Point"/>
 <rdfs:range rdf:resource="http://www.w3.org/2005/Incubator/geo/Wiki/LatitudeLongitudeAltitude#element"/>
</rdf:Property>

<rdf:Property rdf:ID="pos">
 <rdfs:subPropertyOf rdf:resource="http://www.w3.org/1999/02/22-rdf-syntax-ns#value"/>
 <rdfs:domain rdf:resource="#Feature"/>
 <rdfs:range rdf:resource="http://www.w3.org/2005/Incubator/geo/Wiki/LatitudeLongitudeAltitude#element"/>
</rdf:Property>



<!-- Comment -->
<rdf:Property rdf:about="http://xmlns.com/foaf/0.1/based_near">
 <rdfs:subPropertyOf rdf:resource="#where"/>
</rdf:Property>



<!-- More complex Spatial Things -->
<!-- Line -->
<rdf:Property rdf:ID="line">
 <rdfs:subPropertyOf rdf:resource="#where"/>
 <rdfs:range rdf:resource="#LineString"/>
 <rdfs:range rdf:resource="http://www.w3.org/2005/Incubator/geo/Wiki/LatitudeLongitudeAltitude#sequence"/>
</rdf:Property>

<rdfs:Class rdf:ID="LineString">
 <rdfs:subClassOf rdf:resource="#Feature"/>
</rdfs:Class>

<rdf:Property rdf:ID="posList">
 <rdfs:subPropertyOf rdf:resource="http://www.w3.org/1999/02/22-rdf-syntax-ns#value"/>
 <rdfs:domain rdf:resource="#LineString"/>
 <rdfs:domain rdf:resource="#LinearRing"/>
 <rdfs:range rdf:resource="http://www.w3.org/2005/Incubator/geo/Wiki/LatitudeLongitudeAltitude#sequence"/>
</rdf:Property>


<!-- Polygon -->
<rdf:Property rdf:ID="polygon">
 <rdfs:subPropertyOf rdf:resource="#where"/>
 <rdfs:range rdf:resource="#Polygon"/>
 <rdfs:range rdf:resource="http://www.w3.org/2005/Incubator/geo/Wiki/LatitudeLongitudeAltitude#sequence"/>
</rdf:Property>

<rdfs:Class rdf:ID="Polygon">
 <rdfs:subClassOf rdf:resource="#Feature"/>
</rdfs:Class>

<rdf:Property rdf:ID="exterior">
 <rdfs:domain rdf:resource="#Polygon"/>
 <rdfs:range rdf:resource="#LinearRing"/>
</rdf:Property>

<rdfs:Class rdf:ID="LinearRing">
 <rdfs:subClassOf rdf:resource="http://www.w3.org/2003/01/geo/wgs84_pos#SpatialThing"/>
</rdfs:Class>


<!-- Box -->
<rdf:Property rdf:ID="box">
 <rdfs:subPropertyOf rdf:resource="#where"/>
 <rdfs:range rdf:resource="#Envelope"/>
 <rdfs:range rdf:resource="http://www.w3.org/2005/Incubator/geo/Wiki/LatitudeLongitudeAltitude#couple"/>
</rdf:Property>

<rdfs:Class rdf:ID="Envelope">
 <rdfs:subClassOf rdf:resource="#Feature"/>
</rdfs:Class>

<rdf:Property rdf:ID="lowerCorner">
 <rdfs:subPropertyOf rdf:resource="http://www.w3.org/1999/02/22-rdf-syntax-ns#value"/>
 <rdfs:domain rdf:resource="#Envelope"/>
 <rdfs:range rdf:resource="http://www.w3.org/2005/Incubator/geo/Wiki/LatitudeLongitudeAltitude#element"/>
</rdf:Property>

<rdf:Property rdf:ID="upperCorner">
 <rdfs:subPropertyOf rdf:resource="http://www.w3.org/1999/02/22-rdf-syntax-ns#value"/>
 <rdfs:domain rdf:resource="#Envelope"/>
 <rdfs:range rdf:resource="http://www.w3.org/2005/Incubator/geo/Wiki/LatitudeLongitudeAltitude#element"/>
</rdf:Property>


<!-- Other properties -->
<!-- for tagging -->
<rdf:Property rdf:ID="featuretypetag">
 <rdfs:domain rdf:resource="#Feature"/>
 <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
</rdf:Property>

<rdf:Property rdf:ID="relationshiptag">
 <rdfs:domain rdf:resource="#Feature"/>
 <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
</rdf:Property>

<!-- elevation , floor , radius -->
<rdf:Property rdf:ID="elev">
 <rdfs:domain rdf:resource="#Feature"/>
 <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#float"/>
</rdf:Property>

<rdf:Property rdf:ID="floor">
 <rdfs:domain rdf:resource="#Feature"/>
 <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#float"/>
</rdf:Property>

<rdf:Property rdf:ID="radius">
 <rdfs:domain rdf:resource="#Feature"/>
 <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#float"/>
</rdf:Property>

</rdf:RDF>

See Also

• There is draft　W3CLLA in LatitudeLongitudeAltitude to represent Latitude longitude altitude information.

• ESW wiki : "A geographic information notation using SVG and RDF compatible metadata" describes the specification to consider the SVG data to be geo spatial data. In addition, the description of spatial network by RDF is declared.