accessors

This module contains functions that provide information about internal geometries.

ST_ENVELOPE_ARR

ST_ENVELOPE_ARR(geojsons)

Description

Takes any number of features and returns a rectangular Polygon that encompasses all vertices.

• geojsons: ARRAY array of features in GeoJSON format casted to STRING.

Return type

GEOGRAPHY

Example

SELECT CARTO.CARTO.ST_ENVELOPE_ARR(
  ARRAY_CONSTRUCT(
    ST_ASGEOJSON(ST_POINT(-75.833, 39.284))::STRING,
    ST_ASGEOJSON(ST_POINT(-75.6, 39.984))::STRING,
    ST_ASGEOJSON(ST_POINT(-75.221, 39.125))::STRING
  )
);
-- { "coordinates": [ [ [ -75.833, 39.125 ], [ -75.221, 39.125 ], [ -75.221, 39.984 ], ...

Additional examples

• Analyzing store location coverage using a Voronoi diagram