Name

ST_OrientedEnvelope — 返回包含几何图形的最小面积矩形。

Synopsis

geometry ST_OrientedEnvelope( geometry geom );

描述

返回包围几何图形的最小面积旋转矩形。请注意,可能存在多个这样的矩形。在退化输入的情况下,可能会返回Point或LineString。

可用性:2.5.0

另请参阅

ST_Envelope ST_MinimumBoundingCircle

示例

SELECT ST_AsText(ST_OrientedEnvelope('MULTIPOINT ((0 0), (-1 -1), (3 2))'));

                st_astext
                ------------------------------------------------
                POLYGON((3 2,2.88 2.16,-1.12 -0.84,-1 -1,3 2))
            

点和线串的定向包络。

SELECT ST_AsText(ST_OrientedEnvelope(
        ST_Collect(
            ST_GeomFromText('LINESTRING(55 75,125 150)'),
                ST_Point(20, 80))
                )) As wktenv;
wktenv
-----------
POLYGON((19.9999999999997 79.9999999999999,33.0769230769229 60.3846153846152,138.076923076924 130.384615384616,125.000000000001 150.000000000001,19.9999999999997 79.9999999999999))