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public static Query MakeQuery(SpatialStrategy spatialStrategy, string shapeWKT, SpatialRelation relation, double distanceErrorPct = 0.025) { SpatialOperation spatialOperation; Shape shape = ShapeReadWriter.ReadShape(shapeWKT); switch (relation) { case SpatialRelation.Within: spatialOperation = SpatialOperation.IsWithin; break; case SpatialRelation.Contains: spatialOperation = SpatialOperation.Contains; break; case SpatialRelation.Disjoint: spatialOperation = SpatialOperation.IsDisjointTo; break; case SpatialRelation.Intersects: spatialOperation = SpatialOperation.Intersects; break; case SpatialRelation.Nearby: var nearbyArgs = new SpatialArgs(SpatialOperation.IsWithin, shape); nearbyArgs.SetDistPrecision(distanceErrorPct); // only sort by this, do not filter return new FunctionQuery(spatialStrategy.MakeValueSource(nearbyArgs)); default: throw new ArgumentOutOfRangeException("relation"); } var args = new SpatialArgs(spatialOperation, shape); args.SetDistPrecision(distanceErrorPct); return spatialStrategy.MakeQuery(args); }
static void Main(string[] args) { int maxLength = GeohashPrefixTree.GetMaxLevelsPossible(); strategy = new RecursivePrefixTreeStrategy( new GeohashPrefixTree(context, maxLength)); var dir = new RAMDirectory(); var writer = new IndexWriter(dir, new SimpleAnalyzer(), true, IndexWriter.MaxFieldLength.UNLIMITED); AddPoint(writer, "London", -81.233040, 42.983390); AddPoint(writer, "East New York", -73.882360, 40.666770); AddPoint(writer, "Manhattan", -73.966250, 40.783430); AddPoint(writer, "New York City", -74.005970, 40.714270); AddPoint(writer, "Oslo", 10.746090, 59.912730); AddPoint(writer, "Bergen", 5.324150, 60.392990); AddPoint(writer, "Washington, D. C.", -77.036370, 38.895110); writer.Close(); // Origin point - Oslo Spektrum const double lat = 59.9138688; const double lng = 10.752245399999993; const double radius = 600; var query = strategy.MakeQuery(new SpatialArgs(SpatialOperation.IsWithin, context.MakeCircle(lng, lat, radius)), fieldInfo); var searcher = new IndexSearcher(dir); var results = searcher.Search(query, null, 100); foreach (var topDoc in results.ScoreDocs) { var name = searcher.Doc(topDoc.doc).Get("Name"); Console.WriteLine(name); } searcher.Close(); dir.Close(); }
protected virtual Query makeQuery(SpatialTestQuery q) { return(strategy.MakeQuery(q.args)); }
public static Query MakeQuery(SpatialStrategy spatialStrategy, string shapeWKT, SpatialRelation relation, double distanceErrorPct = 0.025) { SpatialOperation spatialOperation; var shape = ReadShape(shapeWKT); switch (relation) { case SpatialRelation.Within: spatialOperation = SpatialOperation.IsWithin; break; case SpatialRelation.Contains: spatialOperation = SpatialOperation.Contains; break; case SpatialRelation.Disjoint: spatialOperation = SpatialOperation.IsDisjointTo; break; case SpatialRelation.Intersects: spatialOperation = SpatialOperation.Intersects; break; case SpatialRelation.Nearby: // only sort by this, do not filter return new FunctionQuery(spatialStrategy.MakeDistanceValueSource(shape.GetCenter())); default: throw new ArgumentOutOfRangeException("relation"); } var args = new SpatialArgs(spatialOperation, shape) { DistErrPct = distanceErrorPct }; return spatialStrategy.MakeQuery(args); }
public object gen(SpatialArgs args) { return(strategy.MakeQuery(args)); }
public Query MakeQuery(Query existingQuery, SpatialStrategy spatialStrategy, string shapeWKT, SpatialRelation relation, double distanceErrorPct = 0.025, SpatialUnits? unitOverride = null) { SpatialOperation spatialOperation; var shape = ReadShape(shapeWKT, unitOverride); switch (relation) { case SpatialRelation.Within: spatialOperation = SpatialOperation.IsWithin; break; case SpatialRelation.Contains: spatialOperation = SpatialOperation.Contains; break; case SpatialRelation.Disjoint: spatialOperation = SpatialOperation.IsDisjointTo; break; case SpatialRelation.Intersects: spatialOperation = SpatialOperation.Intersects; break; case SpatialRelation.Nearby: // only sort by this, do not filter return new FunctionQuery(spatialStrategy.MakeDistanceValueSource(shape.GetCenter())); default: throw new ArgumentOutOfRangeException("relation"); } var args = new SpatialArgs(spatialOperation, shape) { DistErrPct = distanceErrorPct }; if (existingQuery is MatchAllDocsQuery) return new CustomScoreQuery(spatialStrategy.MakeQuery(args), new ValueSourceQuery(spatialStrategy.MakeRecipDistanceValueSource(shape))); return spatialStrategy.MakeQuery(args); }