STCrosses (geometry)

STCrosses (geometry)#

Returns 1 if a geometry instance crosses another geometry instance. Returns 0 if it does not.

Syntax#

.STCrosses ()

Arguments#

other_geometry

Is another geometry instance to compare against the instance on which STCrosses() is invoked.

Return type#

bit

Remarks#

Two geometry instances cross if both of the following conditions are true:

  • The intersection of the two geometry instances results in a geometry whose dimensions are less than the maximum dimension of the source geometry instances.

  • The intersection set is interior to both source geometry instances.

This method always returns null if the spatial reference IDs (SRIDs) of the geometry instances do not match.

Example#

Use STCrosses() to test two geometry instances to see if they cross.

DECLARE @g geometry;
DECLARE @h geometry;
SET @g = geometry::STGeomFromText('LINESTRING(0 2, 2 0)', 0);
SET @h = geometry::STGeomFromText('LINESTRING(0 0, 2 2)', 0);
SELECT @g.STCrosses(@h);

See Also#