Метод SqlGeometry.STIsRing
Determines whether the calling SqlGeometry instance is a ring.
Пространство имен: Microsoft.SqlServer.Types
Сборка: Microsoft.SqlServer.Types (в Microsoft.SqlServer.Types.dll)
Синтаксис
'Декларация
<SqlMethodAttribute(IsDeterministic := True, IsPrecise := False)> _
Public Function STIsRing As SqlBoolean
'Применение
Dim instance As SqlGeometry
Dim returnValue As SqlBoolean
returnValue = instance.STIsRing()
[SqlMethodAttribute(IsDeterministic = true, IsPrecise = false)]
public SqlBoolean STIsRing()
[SqlMethodAttribute(IsDeterministic = true, IsPrecise = false)]
public:
SqlBoolean STIsRing()
[<SqlMethodAttribute(IsDeterministic = true, IsPrecise = false)>]
member STIsRing : unit -> SqlBoolean
public function STIsRing() : SqlBoolean
Возвращаемое значение
Тип: System.Data.SqlTypes.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.
Замечания
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.