STCrosses (geometry Data Type)
Applies To: SQL Server 2014, SQL Server 2016 Preview
Topic Status: Some information in this topic is preview and subject to change in future releases. Preview information describes new features or changes to existing features in Microsoft SQL Server 2016 Community Technology Preview 2 (CTP2).
Returns 1 if a geometry instance crosses another geometry instance. Returns 0 if it does not.
Applies to: SQL Server (SQL Server 2012 through current version), Azure SQL Database.
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.
The following example uses 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);