SqlGeometry.STDifference 方法

Returns an object that represents the points from one SqlGeometry instance that do not lie within another SqlGeometry instance.

命名空間：  Microsoft.SqlServer.Types
組件：  Microsoft.SqlServer.Types (在 Microsoft.SqlServer.Types.dll 中)

語法

'宣告
<SqlMethodAttribute(IsDeterministic := True, IsPrecise := False)> _
Public Function STDifference ( _
    other As SqlGeometry _
) As SqlGeometry
'用途
Dim instance As SqlGeometry 
Dim other As SqlGeometry 
Dim returnValue As SqlGeometry 

returnValue = instance.STDifference(other)

[SqlMethodAttribute(IsDeterministic = true, IsPrecise = false)]
public SqlGeometry STDifference(
    SqlGeometry other
)

[SqlMethodAttribute(IsDeterministic = true, IsPrecise = false)]
public:
SqlGeometry^ STDifference(
    SqlGeometry^ other
)

[<SqlMethodAttribute(IsDeterministic = true, IsPrecise = false)>]
member STDifference : 
        other:SqlGeometry -> SqlGeometry

public function STDifference(
    other : SqlGeometry
) : SqlGeometry

參數

• other
  型別：Microsoft.SqlServer.Types.SqlGeometry
  The SqlGeometry instance indicating which points to remove from the instance on which STDifference is being invoked.

傳回值

型別：Microsoft.SqlServer.Types.SqlGeometry
A SqlGeometry object that represents the unique points in the calling SqlGeometry.

備註

This method always returns nullnull 參考 (在 Visual Basic 中為 Nothing) if the spatial reference IDs (SRIDs) of the SqlGeometry instances do not match.

請參閱

參考

SqlGeometry 類別

Microsoft.SqlServer.Types 命名空間