ST_ENVELOPE
Syntax
ST_ENVELOPE(g) ENVELOPE(g)
Description
Returns the Minimum Bounding Rectangle (MBR) for the geometry value g. The result is returned as a Polygon value.
The polygon is defined by the corner points of the bounding box:
POLYGON((MINX MINY, MAXX MINY, MAXX MAXY, MINX MAXY, MINX MINY))
ST_ENVELOPE() and ENVELOPE() are synonyms.
Examples
SELECT AsText(ST_ENVELOPE(GeomFromText('LineString(1 1,4 4)'))); +----------------------------------------------------------+ | AsText(ST_ENVELOPE(GeomFromText('LineString(1 1,4 4)'))) | +----------------------------------------------------------+ | POLYGON((1 1,4 1,4 4,1 4,1 1)) | +----------------------------------------------------------+
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