geo.ST_DWithin() function

The geo.ST_DWithin() function is experimental and subject to change at any time. By using this function, you accept the risks of experimental functions.

The geo.ST_DWithin() function tests if the specified region is within a defined distance from the specified geographic information system (GIS) geometry and returns true or false.

Function type: Test

import "experimental/geo"

  region: {lat: 40.7, lon: -73.3, radius: 20.0},
  geometry: {lon: 39.7515, lat: 15.08433},
  distance: 1000.0

// Returns false



The region to test. Specify record properties for the shape. See Region definitions.

Data type: Record


The GIS geometry to test. Can be either point or linestring geometry. See GIS geometry definitions.

Data type: Record


Maximum distance allowed between the region and geometry. Define distance units with the geo.units option.

Data type: Float


Test if geographic points are within a distance from a region
import "experimental/geo"

region = {
  minLat: 40.51757813,
  maxLat: 40.86914063,
  minLon: -73.65234375,
  maxLon: -72.94921875

  |> geo.toRows()
  |> map(fn: (r) => ({
    r with st_within: geo.ST_DWithin(region: box, geometry: {lat:, lon: r.lon}, distance: 15.0)

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