描述

如果几何图形完全在彼此的指定距离内，则返回True。距离以几何图形的空间参考系定义的单位指定。要使此函数有意义，源几何图形必须具有相同的坐标投影，并且具有相同的SRID。

	This function automatically includes a bounding box comparison that makes use of any spatial indexes that are available on the geometries.

可用性：1.5.0

示例

postgis=# SELECT ST_DFullyWithin(geom_a, geom_b, 10) as DFullyWithin10, ST_DWithin(geom_a, geom_b, 10) as DWithin10, ST_DFullyWithin(geom_a, geom_b, 20) as DFullyWithin20 from
    (select ST_GeomFromText('POINT(1 1)') as geom_a,ST_GeomFromText('LINESTRING(1 5, 2 7, 1 9, 14 12)') as geom_b) t1;

-----------------
 DFullyWithin10 | DWithin10 | DFullyWithin20 |
---------------+----------+---------------+
 f             | t        | t             |  

另请参阅

ST_MaxDistance, ST_DWithin, ST_3DDWithin, ST_3DDFullyWithin