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STPolyFromText (geometry Data Type)

Returns a geometry instance from an Open Geospatial Consortium (OGC) Well-Known Text (WKT) representation augmented with any Z (elevation) and M (measure) values carried by the instance.


STPolyFromText ( 'polygon_tagged_text' , SRID )

polygon_tagged_text

Is the WKT representation of the geometry Polygon instance you wish to return. polygon_tagged_text is an nvarchar(max) expression.

SRID

Is an int expression representing the spatial reference ID (SRID) of the geometry Polygon instance you wish to return.

SQL Server return type: geometry

CLR return type: SqlGeometry

OGC type: Polygon

This method will throw a FormatException if the input is not well-formatted.

The following example uses STPolyFromText() to create a geometry instance.

DECLARE @g geometry; 
SET @g = geometry::STPolyFromText('POLYGON ((5 5, 10 5, 10 10, 5 5))', 0);
SELECT @g.ToString();

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