ST_CENTROID
Syntax
ST_Centroid(mpoly) Centroid(mpoly)
Description
Returns a point reflecting the mathematical centroid (geometric center) for the MultiPolygon mpoly. The resulting point will not necessarily be on the MultiPolygon.
ST_Centroid() and Centroid() are synonyms.
Examples
SET @poly = ST_GeomFromText('POLYGON((0 0,20 0,20 20,0 20,0 0))'); SELECT ST_AsText(ST_Centroid(@poly)) AS center; +--------------+ | center | +--------------+ | POINT(10 10) | +--------------+
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