query-9fc9f4e0fd05d513b132b6d24230faf3

rq turtle/ttl

Finding geographic centers

Use at

PREFIX wikibase: <http://wikiba.se/ontology#>
PREFIX wdt: <http://www.wikidata.org/prop/direct/>
PREFIX geo: <http://www.opengis.net/ont/geosparql#>
PREFIX bd: <http://www.bigdata.com/rdf#>
SELECT ?territory ?territoryLabel ?location ?distance
WHERE {
  SERVICE wikibase:around { 
    ?territory wdt:P5140 ?location.
    bd:serviceParam wikibase:center "Point(18.0 60.0)"^^geo:wktLiteral.
    bd:serviceParam wikibase:radius "100000".
    bd:serviceParam wikibase:distance ?distance.
  }
  #OPTIONAL {?item wdt:P31 ?class}.
  SERVICE wikibase:label { bd:serviceParam wikibase:language "en". }
}
ORDER BY ?distance
LIMIT 100

Query found at

graph TD classDef projected fill:lightgreen; classDef literal fill:orange; classDef iri fill:yellow; v1("?distance"):::projected v3("?location"):::projected v2("?territory"):::projected c3(["bd:serviceParam"]):::iri c5([sPoint(18.0 60.0)^^<http://www.opengis.net/ont/geosparql#wktLiteral>"]):::literal c7(["100000"]):::literal c11(["en"]):::literal subgraph s1["http://wikiba.se/ontology#around"] style s1 stroke-width:4px; v2 --"wdt:P5140"--> v3 c3 --"wikibase:center"--> c5 c3 --"wikibase:radius"--> c7 c3 --"wikibase:distance"--> v1 end subgraph s2["http://wikiba.se/ontology#label"] style s2 stroke-width:4px; c3 --"wikibase:language"--> c11 end