query-ec3edfb0f975accf835b6db4938fdffa

rq turtle/ttl

Query #13: All articles with pictures within X [kilometers] of a locationExample of searching for pictures near a particular location

Use at

PREFIX wikibase: <http://wikiba.se/ontology#>
PREFIX wdt: <http://www.wikidata.org/prop/direct/>
PREFIX wd: <http://www.wikidata.org/entity/>
PREFIX geof: <http://www.opengis.net/def/function/geosparql/>
PREFIX bd: <http://www.bigdata.com/rdf#>
SELECT ?place ?placeLabel ?pic ?location ?instanceLabel
WHERE
{
  wd:Q462042 wdt:P625 ?loc .         # <-- Change the Q-Code to a geographic entiry
  SERVICE wikibase:around {
      ?place wdt:P625 ?location .
      bd:serviceParam wikibase:center ?loc .
      bd:serviceParam wikibase:radius "100" .    # <--  Specify a distance 
  }
  OPTIONAL {    ?place wdt:P31 ?instance  }
  #OPTIONAL {?place wdt:P18 ?pic}                # toggle comment character to see all links in radius
  ?place wdt:P18 ?pic
  SERVICE wikibase:label { bd:serviceParam wikibase:language "en" }
  BIND(geof:distance(?loc, ?location) as ?dist)
} ORDER BY ?dist

Query found at

graph TD classDef projected fill:lightgreen; classDef literal fill:orange; classDef iri fill:yellow; v7("?dist") v5("?instance") v2("?loc") v4("?location"):::projected v6("?pic"):::projected v3("?place"):::projected c7(["100"]):::literal c4(["bd:serviceParam"]):::iri c1(["wd:Q462042"]):::iri c12(["en"]):::literal c1 --"wdt:P625"--> v2 subgraph s1["http://wikiba.se/ontology#around"] style s1 stroke-width:4px; v3 --"wdt:P625"--> v4 c4 --"wikibase:center"--> v2 c4 --"wikibase:radius"--> c7 end subgraph optional0["(optional)"] style optional0 fill:#bbf,stroke-dasharray: 5 5; v3 -."wdt:P31".-> v5 end v3 --"wdt:P18"--> v6 subgraph s2["http://wikiba.se/ontology#label"] style s2 stroke-width:4px; c4 --"wikibase:language"--> c12 end bind0[/"http://www.opengis.net/def/function/geosparql/distance(?loc,?location)"/] v2 --o bind0 v4 --o bind0 bind0 --as--o v7