ST_Crosses()

Returns 1 when two geometries cross.

Syntax

ST_Crosses(geom1, geom2)

Aliases: none.

Arguments

geom1 and geom2 are GEOMETRY values.

Return Value

Returns BOOL.

Usage Notes

• Both geometries must have the same SRID. Predicates are Cartesian (SRID 0), not geodetic SRID 4326 predicates.

Examples

DROP DATABASE IF EXISTS geo_crosses_demo;
CREATE DATABASE geo_crosses_demo;
USE geo_crosses_demo;

SELECT ST_Crosses(ST_GeomFromText('LINESTRING(-1 1, 3 1)'), ST_GeomFromText('POLYGON((0 0, 2 0, 2 2, 0 2, 0 0))')) AS line_crosses_polygon;

DROP DATABASE geo_crosses_demo;

See Also

ST_Touches(), ST_Intersects().