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SqlGeometry.STIsRing Method

Determines whether the calling SqlGeometry instance is a ring.

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

'Declaration
<SqlMethodAttribute(IsDeterministic := True, IsPrecise := False)> _
Public Function STIsRing As SqlBoolean
'Usage
Dim instance As SqlGeometry 
Dim returnValue As SqlBoolean 

returnValue = instance.STIsRing()

Return Value

Type: SqlBoolean
Returns true if a geometry instance fulfills the following requirements:
  • It is a LineString instance.

  • It is closed.

  • It is simple.

Returns false if the LineString instance does not meet the requirements.

For a SqlGeometry instance to be closed and simple, both STIsClosed and STIsSimple must return true when invoked on the instance. To determine the instance type of a SqlGeometry, use STGeometryType.

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