sttl.navlab.glocate.rq Maven / Gradle / Ivy

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#
# Geolocate resource on a map given lat et long
#
prefix p: 
prefix o: 

template st:glocate {

  st:call-template(st:gmap, ?in, ?lat, ?lon, aggregate(?elem))
  
}
where {

  ?in a o:Place 
  
  {select * where { 
  # let o:place first because limit 1
    { ?in o:place [ 
	p:longitude ?lon ;
	p:latitude  ?lat]   
    } 
    union
    {?in p:longitude ?lon ;
	 p:latitude  ?lat }     
  } limit 1}
  
  # search all other Place resources   
   optional {
      select (xt:list(?res, ?lat, ?lon) as ?elem) ?res
      where {
        bind (st:get(st:dataset) as ?g)
	graph ?g {
	  ?res p:longitude ?lon ; p:latitude ?lat
	}
      }
   }
   
   filter(! bound(?res) || ?in != ?res)

}