描述

重叠、接触、内部都暗示着空间的交集。如果上述任一项返回TRUE，则这些几何图形在空间上也相交。对于空间相交，不相交意味着FALSE。

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

更改：3.0.0 SFCGAL后端已删除，GEOS后端支持TIN。

可用性：2.0.0

This function supports 3d and will not drop the z-index.

This function supports Polyhedral surfaces.

This function supports Triangles and Triangulated Irregular Network Surfaces (TIN).

This method is also provided by SFCGAL backend.

This method implements the SQL/MM specification. SQL-MM 3：？

几何图形示例

SELECT ST_3DIntersects(pt, line), ST_Intersects(pt, line)
  FROM (SELECT 'POINT(0 0 2)'::geometry As pt, 'LINESTRING (0 0 1, 0 2 3)'::geometry As line) As foo;
 st_3dintersects | st_intersects
-----------------+---------------
 f               | t
(1 row)
    

TIN示例

SELECT ST_3DIntersects('TIN(((0 0 0,1 0 0,0 1 0,0 0 0)))'::geometry, 'POINT(.1 .1 0)'::geometry);
 st_3dintersects
-----------------
 t

另请参阅

ST_Intersects