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$minDistance (geospatial)

APPLIES TO: MongoDB vCore

The $minDistance operator is used in geospatial queries to specify the minimum distance (in meters) that must exist between two points. It's useful for finding locations outside a certain radius.

Syntax

The syntax for the $minDistance operator is as follows:

{
  <location field>: {
    $near: {
      $geometry: {
        type: "Point",
        coordinates: [<longitude>, <latitude>]
      },
      $minDistance: <distance in meters>
    }
  }
}

Parameters

Parameter Type Description
location field Field The field containing the geospatial data
coordinates Array An array of [longitude, latitude] specifying the center point
$minDistance Number Minimum distance in meters from the center point

Example

Using the stores collection, let's find stores that are at least 500 kilometers away from the Proseware Home Entertainment Hub:

db.stores.find({
  location: {
    $near: {
      $geometry: {
        type: "Point",
        coordinates: [69.7296, 70.1272]  // Proseware Home Entertainment Hub location
      },
      $minDistance: 500000  // 500 kilometers in meters
    }
  }
},
{
  name: 1,
  location: 1
})

This query will return stores like:

  • Fourth Coffee Turntable Boutique
  • Wide World Importers Headphone Corner And other stores beyond the 500km radius.

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