ST_INTERSECTS
Syntax
ST_INTERSECTS(g1,g2)
Description
Returns 1
or 0
to indicate whether geometry g1
spatially intersects geometry g2
.
ST_INTERSECTS() uses object shapes, while INTERSECTS(), based on the original MySQL implementation, uses object bounding rectangles.
ST_INTERSECTS() tests the opposite relationship to ST_DISJOINT().
Examples
SET @g1 = ST_GEOMFROMTEXT('POINT(0 0)'); SET @g2 = ST_GEOMFROMTEXT('LINESTRING(0 0, 0 2)'); SELECT ST_INTERSECTS(@g1,@g2); +------------------------+ | ST_INTERSECTS(@g1,@g2) | +------------------------+ | 1 | +------------------------+
SET @g2 = ST_GEOMFROMTEXT('LINESTRING(2 0, 0 2)'); SELECT ST_INTERSECTS(@g1,@g2); +------------------------+ | ST_INTERSECTS(@g1,@g2) | +------------------------+ | 0 | +------------------------+
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