SqlGeography.STPointN-Methode

Returns the specified point in a SqlGeography instance.

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

Syntax

'Declaration
<SqlMethodAttribute(IsDeterministic := True, IsPrecise := True)> _
Public Function STPointN ( _
    n As Integer _
) As SqlGeography
'Usage
Dim instance As SqlGeography 
Dim n As Integer 
Dim returnValue As SqlGeography 

returnValue = instance.STPointN(n)

[SqlMethodAttribute(IsDeterministic = true, IsPrecise = true)]
public SqlGeography STPointN(
    int n
)

[SqlMethodAttribute(IsDeterministic = true, IsPrecise = true)]
public:
SqlGeography^ STPointN(
    int n
)

[<SqlMethodAttribute(IsDeterministic = true, IsPrecise = true)>]
member STPointN : 
        n:int -> SqlGeography

public function STPointN(
    n : int
) : SqlGeography

Parameter

• n
  Typ: System.Int32
  An int expression between 1 and the number of points in the SqlGeography instance.

Rückgabewert

Typ: Microsoft.SqlServer.Types.SqlGeography
A SqlGeography representing the specified point in the calling instance.

Hinweise

If a SqlGeography instance is user-created, the STPointN method returns the point specified by expression by ordering the points in the order in which they were originally input.

If a SqlGeography instance is constructed by the system, STPointN returns the point specified by expression by ordering all the points in the same order they would be output: first by geography instance, then by ring within the instance (if appropriate), and then by point within the ring. This order is deterministic.

If this method is called with a value less than 1, it throws an ArgumentOutOfRangeException.

If this method is called with a value greater than the number of points in the instance, it returns nullein NULL-Verweis (Nothing in Visual Basic).

Siehe auch

Verweis

SqlGeography Klasse

Microsoft.SqlServer.Types-Namespace