描述

返回给定特定椭球体的两个经度/纬度几何图形之间的最小距离(以米为单位)。有关椭球体的说明，请参阅 ST_LengthSpheroid 。

	此函数不查看几何体的SRID。它假定几何图形坐标基于提供的椭球体。

可用性：1.5-引入了对除点之外的其他几何类型的支持。以前的版本仅适用于点。

已更改：2.2.0在以前的版本中，这称为ST_DISTANCE_ESPOID

示例

SELECT round(CAST(
                ST_DistanceSpheroid(ST_Centroid(geom), ST_GeomFromText('POINT(-118 38)',4326), 'SPHEROID["WGS 84",6378137,298.257223563]')
                        As numeric),2) As dist_meters_spheroid,
                round(CAST(ST_DistanceSphere(ST_Centroid(geom), ST_GeomFromText('POINT(-118 38)',4326)) As numeric),2) As dist_meters_sphere,
round(CAST(ST_Distance(ST_Transform(ST_Centroid(geom),32611),
                ST_Transform(ST_GeomFromText('POINT(-118 38)', 4326),32611)) As numeric),2) As dist_utm11_meters
FROM
        (SELECT ST_GeomFromText('LINESTRING(-118.584 38.374,-118.583 38.5)', 4326) As geom) as foo;
 dist_meters_spheroid | dist_meters_sphere | dist_utm11_meters
----------------------+--------------------+-------------------
                         70454.92 |           70424.47 |          70438.00

        

另请参阅

ST_Distance, ST_DistanceSphere