Метод Filter
Offers a fast, index-only intersection method to determine if a SqlGeometry instance intersects another SqlGeometry instance, assuming an index is available.
Пространство имен: Microsoft.SqlServer.Types
Сборка: Microsoft.SqlServer.Types (в Microsoft.SqlServer.Types.dll)
Синтаксис
'Декларация
<SqlMethodAttribute(IsDeterministic := True, IsPrecise := False)> _
Public Function Filter ( _
other As SqlGeometry _
) As SqlBoolean
'Применение
Dim instance As SqlGeometry
Dim other As SqlGeometry
Dim returnValue As SqlBoolean
returnValue = instance.Filter(other)
[SqlMethodAttribute(IsDeterministic = true, IsPrecise = false)]
public SqlBoolean Filter(
SqlGeometry other
)
[SqlMethodAttribute(IsDeterministic = true, IsPrecise = false)]
public:
SqlBoolean Filter(
SqlGeometry^ other
)
[<SqlMethodAttribute(IsDeterministic = true, IsPrecise = false)>]
member Filter :
other:SqlGeometry -> SqlBoolean
public function Filter(
other : SqlGeometry
) : SqlBoolean
Параметры
- other
Тип: Microsoft.SqlServer.Types. . :: . .SqlGeometry
Specifies the SqlGeometry instance to compare to the current SqlGeometry.
Возвращаемое значение
Тип: System.Data.SqlTypes. . :: . .SqlBoolean
A SqlBoolean that specifies whether the specified SqlGeometry intersects the calling SqlGeometry. If the instances do intersect, this method returns true. Otherwise, it returns false.
Замечания
This method returns true if a SqlGeometry instance potentially intersects another SqlGeometry instance. This method may produce a false positive return, and the exact result may be plan-dependent. Returns an accurate false value (true negative return) if there is no intersection of SqlGeometry instances found.
In cases where an index is not available, or is not used, the method will return the same values as STIntersects when called with the same parameters.