[GitHub] [lucenenet] yashhema opened a new issue, #782: Find all polygons containing the point

[GitBox]

yashhema opened a new issue, #782:
URL: https://github.com/apache/lucenenet/issues/782

   Hello,
   I indexed MultiPolygon using this
          IDictionary<string, string> margs = new Dictionary<string, string>
               {
                   ["SpatialContextFactory"] = 
typeof(NtsSpatialContextFactory).FullName
               };
   
           
   
               var ctx = SpatialContextFactory.MakeSpatialContext(margs, 
GetType().Assembly);
                 SpatialPrefixTree trie = new QuadPrefixTree(ctx, 12);
               _locationfindstrategy = new TermQueryPrefixTreeStrategy(trie, 
"geo");
   
   then indexed each polygon via
                  IShape area = ctx.ReadShapeFromWkt(v.wktstr);
                   Document doc = new Document();
                   doc.Add(new TextField("id", v.stname, Field.Store.YES));
                   Field[] fields = 
_locationfindstrategy.CreateIndexableFields(area, 0.025);
                   foreach (Field field in fields)
                   {
                       doc.Add(field);
                   }
   
   Now I am trying to search documents containing a point (For example , say i 
want to find the city from lat/long, and I have stored polygon shapes of city )
   
   IPoint upperleft = ctx.MakePoint(92.515830993652514, 10.8976411819458);
               Query query = _locationfindstrategy.MakeQuery(new 
SpatialArgs(SpatialOperation.Contains, upperleft));
   
               TopDocs search = searcher.Search(query, 10);
   
   I am getting error - Opeation Not supported
   
   Is there any other mechanism which i can use
   
   


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