설명

Computes the center point and radius of the smallest circle that contains a geometry. Returns a record with fields:

Use with ST_Collect to get the minimum bounding circle of a set of geometries.

To compute two points lying on the mimimum circle (the "maximum diameter") use ST_LongestLine.

2.3.0 버전부터 사용할 수 있습니다.

예시

SELECT ST_AsText(center), radius FROM ST_MinimumBoundingRadius('POLYGON((26426 65078,26531 65242,26075 65136,26096 65427,26426 65078))');

                st_astext                 |      radius
------------------------------------------+------------------
 POINT(26284.8418027133 65267.1145090825) | 247.436045591407

참고

ST_Collect, ST_MinimumBoundingCircle, ST_LongestLine