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STPointOnSurface (geometry Data Type)

Returns an arbitrary point located within the interior of a geometry instance.

Składnia

.STPointOnSurface ( )

Return Types

SQL Server return type: geometry

CLR return type: SqlGeometry

Open Geospatial Consortium (OGC) type: Point

Uwagi

This method returns null if the instance is empty.

Examples

The following example creates a Polygon instance and uses STPointOnSurface() to find a point on the instance.

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.STPointOnSurface().ToString();

Zobacz także

Inne zasoby

OGC Methods on Geometry Instances