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SqlGeometry.STBuffer Method (Double)

 

Applies To: SQL Server 2016 Preview

Returns a geometric object that represents the union of all points whose distance from a SqlGeometry instance is less than or equal to a specified value.

Namespace:   Microsoft.SqlServer.Types
Assembly:  Microsoft.SqlServer.Types (in Microsoft.SqlServer.Types.dll)

<SqlMethodAttribute(IsDeterministic := True, IsPrecise := False)>
Public Function STBuffer (
	distance As Double
) As SqlGeometry

Parameters

distance
Type: System.Double

A double that specifies the distance from the SqlGeometry instance around which to calculate the buffer.

Return Value

Type: Microsoft.SqlServer.Types.SqlGeometry

A SqlGeometry object that represents the union of all points whose distance from the calling SqlGeometry is less than or equal to the specified value.

STBuffer calculates a buffer in the same manner as BufferWithTolerance, that specifies tolerance = distance * .001 and relative = true.

A negative buffer removes all points within the given distance of the boundary of the SqlGeometry.

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