OPTIONS

$nearSphere

$nearSphere

Specifies a point for which a geospatial query returns the documents from nearest to farthest. MongoDB calculates distances for $nearSphere using spherical geometry.

The $nearSphere operator requires a geospatial index and can use either 2dsphere index or 2d index for location data defined as GeoJSON points or legacy coordinate pairs. To use a 2d index on GeoJSON points, create the index on the coordinates field of the GeoJSON object.

The $nearSphere operator can specify either a GeoJSON point or legacy coordinate point.

To specify a GeoJSON point, use the following syntax:

{
  $nearSphere: {
     $geometry: {
        type : "Point",
        coordinates : [ <longitude>, <latitude> ]
     },
     $minDistance: <distance in meters>,
     $maxDistance: <distance in meters>
  }
}
  • The optional $minDistance is available only if the query uses the 2dsphere index. $minDistance limits the results to those documents that are at least the specified distance from the center point.

    New in version 2.6.

  • The optional $maxDistance is available for either index.

To specify a point using legacy coordinates, use the following syntax:

{
  $nearSphere: [ <x>, <y> ],
  $minDistance: <distance in radians>,
  $maxDistance: <distance in radians>
}
  • The optional $minDistance is available only if the query uses the 2dsphere index. $minDistance limits the results to those documents that are at least the specified distance from the center point.

    New in version 2.6.

  • The optional $maxDistance is available for either index.

If you use longitude and latitude for legacy coordinates, specify the longitude first, then latitude.

Behavior

Queries that use a 2d index return at most 100 documents.

Examples

Specify Center Point Using GeoJSON

Consider a collection places that contains documents with a location field and has a 2dsphere index.

Then, the following example returns whose location is at least 1000 meters from and at most 5000 meters from the specified point, ordered from nearest to farthest:

db.places.find(
   {
     location: {
        $nearSphere: {
           $geometry: {
              type : "Point",
              coordinates : [ -73.9667, 40.78 ]
           },
           $minDistance: 1000,
           $maxDistance: 5000
        }
     }
   }
)

Specify Center Point Using Legacy Coordinates

2d Index

Consider a collection legacyPlaces that contains documents with legacy coordinates pairs in the location field and has a 2d index.

Then, the following example returns up to 100 documents whose location is at most 0.10 radians from the specified point, ordered from nearest to farthest:

db.legacyPlaces.find(
   { location : { $nearSphere : [ -73.9667, 40.78 ], $maxDistance: 0.10 } }
)

2dsphere Index

If the collection has a 2dsphere index instead, you can also specify the optional $minDistance specification. For example, the following example returns the documents whose location is at least 0.0004 radians from the specified point, ordered from nearest to farthest:

db.legacyPlaces.find(
   { location : { $nearSphere : [ -73.9667, 40.78 ], $minDistance: 0.0004 } }
)
←   $geoWithin $near  →