Was this page helpful?
Your feedback about this content is important. Let us know what you think.
Additional feedback?
1500 characters remaining
STConvexHull (geometry Data Type)
Collapse the table of content
Expand the table of content

STConvexHull (geometry Data Type)

 

Applies To: SQL Server 2014, SQL Server 2016 Preview

Returns an object representing the convex hull of a geometry instance.

Applies to: SQL Server (SQL Server 2008 through current version), Azure SQL Database.


.STConvexHull ( )

SQL Server return type: geometry

CLR return type: SqlGeometry

STConvexHull() returns the smallest convex polygon that contains the given geometry instance. Points or co-linear LineString instances will produce an instance of the same type as that of the input.

The following example uses STConvexHull() to find the convex hull of a non-convex Polygon geometry instance.

DECLARE @g geometry;
SET @g = geometry::STGeomFromText('POLYGON((0 0, 0 2, 1 1, 2 2, 2 0, 0 0))', 0);
SELECT @g.STConvexHull().ToString();

Community Additions

ADD
Show:
© 2015 Microsoft