public SpatialIdx()
{
Map = docs => from e in docs
select new { e.Capacity, e.Venue, e.Date, _ = SpatialIndex.Generate(e.Latitude, e.Longitude) };
Index(x => x.Venue, FieldIndexing.Analyzed);
}
public void PureLucene()
{
using (var dir = new RAMDirectory())
{
using (var keywordAnalyzer = new KeywordAnalyzer())
using (var writer = new IndexWriter(dir, keywordAnalyzer, true, IndexWriter.MaxFieldLength.UNLIMITED))
{
var doc = new Lucene.Net.Documents.Document();
var writeShape = NtsSpatialContext.GEO.ReadShape("LINESTRING (0 0, 1 1, 2 1)");
var writeStrategy = SpatialIndex.CreateStrategy("WKT", SpatialSearchStrategy.GeohashPrefixTree, GeohashPrefixTree.GetMaxLevelsPossible());
foreach (var f in writeStrategy.CreateIndexableFields(writeShape))
{
doc.Add(f);
}
writer.AddDocument(doc);
writer.Commit();
}
var shape = NtsSpatialContext.GEO.ReadShape("LINESTRING (1 0, 1 1, 1 2)");
SpatialArgs args = new SpatialArgs(SpatialOperation.Intersects, shape);
var strategy = SpatialIndex.CreateStrategy("WKT", SpatialSearchStrategy.GeohashPrefixTree, GeohashPrefixTree.GetMaxLevelsPossible());
var makeQuery = strategy.MakeQuery(args);
using (var search = new IndexSearcher(dir))
{
var topDocs = search.Search(makeQuery, 5);
Assert.Equal(1, topDocs.TotalHits);
}
}
}