mongo geospatial

gistfile1.txt

db.gates.insert(
   {
      boundary : { type: "Polygon", coordinates: [ [ [ 127, 37] , [127.1 , 37] , [127 , 37.1] , [ 127, 37] ] ] },
      gate : {type: "Point", coordinates:[127, 37] }
   }
)
db.gates.createIndex( { boundary : "2dsphere" } )

db.gates.find( { boundary :
                  { $geoWithin :
                    { $geometry :
                      { type : "Polygon" ,
                        coordinates : [ [ [ 127, 37 ] ,
                                          [ 127.1, 37 ] ,
                                          [ 127.1, 37.1 ] ,
                                          [ 127, 37.1 ],
                                          [ 127, 37 ] ] ]
                } } } } )