This function returns true if the bounding boxes of two pcpatch objects or the bounding boxes of a pcpatch object and a geometry object intersect.

Syntax

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

Parameters

Parameter Description
pp1 Pcpatch object 1.
pp2 Pcpatch object 2.
g The geometry object of Ganos Geometry.

Examples

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

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