判斷兩個pcpatch對象的外包框是否相交。

語法

boolean ST_intersects(pcpatch pp1, pcpatch pp2);
boolean ST_intersects(geometry g,  pcpatch pp1);

參數

參數名稱 描述
pp1 pcpatch對象1。
pp2 pcpatch對象2。
g ganos geometry的geometry對象。

示例

-- Patch should intersect itself
SELECT ST_Intersects(
         '01010000000000000001000000C8CEFFFFF8110000102700000A00'::pcpatch,
         '01010000000000000001000000C8CEFFFFF8110000102700000A00'::pcpatch);
------------------------
t

SELECT ST_Intersects('SRID=4326;POINT(-126.451 45.552)'::geometry, pa) FROM patches WHERE id = 7;
------------------------
t