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January 14, 2015 17:19
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VOS 7.1 dev - st_distance vs. st_intersect
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| PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#> | |
| PREFIX ogc: <http://www.opengis.net/ont/geosparql#> | |
| PREFIX geom: <http://geovocab.org/geometry#> | |
| PREFIX wgs: <http://www.w3.org/2003/01/geo/wgs84_pos#> | |
| PREFIX lgd: <http://linkedgeodata.org/> | |
| PREFIX lgdo: <http://linkedgeodata.org/ontology/> | |
| PREFIX lgdm: <http://linkedgeodata.org/meta/> | |
| PREFIX lgd-tr: <http://linkedgeodata.org/triplify/> | |
| PREFIX lgd-geo: <http://linkedgeodata.org/geometry/> | |
| PREFIX dcterms: <http://purl.org/dc/terms/> | |
| SELECT ?name, ?wkt, bif:st_distance(?wkt, ?centroid ) AS ?distance | |
| FROM <http://linkedgeodata.org> { | |
| ?lgd a lgdo:City; | |
| rdfs:label ?name; | |
| geom:geometry [ogc:asWKT ?wkt ]. | |
| BIND ( bif:st_point(10.447683, 51.163375) AS ?centroid ) | |
| FILTER ( bif:st_distance(?wkt, ?centroid) <= 100 ) | |
| FILTER ( langMatches(lang(?name), '') ) | |
| FILTER NOT EXISTS { ?lgd a lgdm:Way. } | |
| } |
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| PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#> | |
| PREFIX ogc: <http://www.opengis.net/ont/geosparql#> | |
| PREFIX geom: <http://geovocab.org/geometry#> | |
| PREFIX wgs: <http://www.w3.org/2003/01/geo/wgs84_pos#> | |
| PREFIX lgd: <http://linkedgeodata.org/> | |
| PREFIX lgdo: <http://linkedgeodata.org/ontology/> | |
| PREFIX lgdm: <http://linkedgeodata.org/meta/> | |
| PREFIX lgd-tr: <http://linkedgeodata.org/triplify/> | |
| PREFIX lgd-geo: <http://linkedgeodata.org/geometry/> | |
| PREFIX dcterms: <http://purl.org/dc/terms/> | |
| SELECT ?name, ?wkt, bif:st_distance(?wkt, ?centroid ) AS ?distance | |
| FROM <http://linkedgeodata.org> { | |
| ?lgd a lgdo:City; | |
| rdfs:label ?name; | |
| geom:geometry [ogc:asWKT ?wkt ]. | |
| BIND ( bif:st_point(10.447683, 51.163375) AS ?centroid ) | |
| FILTER ( bif:st_intersects (?wkt, ?centroid, 100) ) | |
| FILTER ( langMatches(lang(?name), '') ) | |
| FILTER NOT EXISTS { ?lgd a lgdm:Way. } | |
| } |
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| Connected to OpenLink Virtuoso | |
| Driver: 07.10.3207 OpenLink Virtuoso ODBC Driver | |
| name wkt distance | |
| LONG VARCHAR LONG VARCHAR LONG VARCHAR | |
| _______________________________________________________________________________ | |
| Erfurt POINT(11.0296 50.9778) 45.57127203974507 | |
| Göttingen POINT(9.93521 51.5328) 54.31867540296254 | |
| Kassel POINT(9.4763 51.309) 69.50083019481471 | |
| Jena POINT(11.5833 50.9331) 83.3635333416364 | |
| 4 Rows. -- 210 msec. |
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| name wkt distance | |
| LONG VARCHAR LONG VARCHAR LONG VARCHAR | |
| _______________________________________________________________________________ | |
| Erfurt POINT(11.0296 50.9778) 45.57127203974507 | |
| Göttingen POINT(9.93521 51.5328) 54.31867540296254 | |
| Jena POINT(11.5833 50.9331) 83.3635333416364 | |
| 3 Rows. -- 4572 msec. |
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