Sdílet prostřednictvím


STArea (geometry Data Type)

Returns the total surface area of a geometry instance.

Syntax

.STArea ( )

Return Types

SQL Server return type: float

CLR return type: SqlDouble

Remarks

STArea() returns 0 if a geometry instance contains only 0- and 1-dimensional figures, or if it is empty.

Examples

The following example uses STArea() to create a Polygongeometry instance and computes the area of the polygon.

DECLARE @g geometry;
SET @g = geometry::STGeomFromText('POLYGON((0 0, 3 0, 3 3, 0 3, 0 0),(2 2, 2 1, 1 1, 1 2, 2 2))', 0);
SELECT @g.STArea();

See Also

Other Resources