Name
ST_DFullyWithin — 如果两个几何完全在给定距离内，则返回True
Synopsis
boolean
ST_DFullyWithin
(
geometry
g1
, geometry
g2
, double precision
distance
)
;
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。
![[Note]](images/note.png)
|
|
|
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 |