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ST_INTERSECTS (NoSQL query)

  • Članak

APPLIES TO: NoSQL

Returns a boolean indicating whether the GeoJSON object (Point, Polygon, MultiPolygon, or LineString) specified in the first argument intersects the GeoJSON object in the second argument.

Syntax

ST_INTERSECTS(<spatial_expr_1>, <spatial_expr_2>)

Arguments

Description
spatial_expr_1 Any valid GeoJSON Point, Polygon, MultiPolygon or LineString expression.
spatial_expr_2 Any valid GeoJSON Point, Polygon, MultiPolygon or LineString expression.

Return types

Returns a boolean value.

Examples

The following example shows how to find if two polygons intersect.

SELECT VALUE {
    highWayAndCampusIntersect: ST_INTERSECTS({
        "type": "Polygon",
        "coordinates": [ [
            [
              -122.13693695285855,
              47.64996065621003
            ],
            [
              -122.1351662656516,
              47.64627863318731
            ],
            [
              -122.13488295569863,
              47.646326350048696
            ],
            [
              -122.1366182291613,
              47.650016321952904
            ],
            [
              -122.13693695285855,
              47.64996065621003
            ]
        ] ]
    }, {  
        "type": "Polygon",
        "coordinates": [ [
            [
              -122.14034847687708,
              47.6494835188378
            ],
            [
              -122.14014779899375,
              47.64625477474044
            ],
            [
              -122.13256925774829,
              47.646207057813655
            ],
            [
              -122.13254564858545,
              47.64941990019193
            ],
            [
              -122.14034847687708,
              47.6494835188378
            ]
        ] ]
    })
}

[
  {
      "highWayAndCampusIntersect": true
  }
]

Remarks

  • This function benefits from a geospatial index except in queries with aggregates.
  • The GeoJSON specification requires that points within a Polygon be specified in counter-clockwise order. A Polygon specified in clockwise order represents the inverse of the region within it.

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