Méthode SqlGeometry.STBuffer

Returns a geometric object that represents the union of all points whose distance from a SqlGeometry instance is less than or equal to a specified value.

Espace de noms :  Microsoft.SqlServer.Types
Assembly :  Microsoft.SqlServer.Types (en Microsoft.SqlServer.Types.dll)

Syntaxe

'Déclaration
<SqlMethodAttribute(IsDeterministic := True, IsPrecise := False)> _
Public Function STBuffer ( _
    distance As Double _
) As SqlGeometry
'Utilisation
Dim instance As SqlGeometry 
Dim distance As Double 
Dim returnValue As SqlGeometry 

returnValue = instance.STBuffer(distance)

[SqlMethodAttribute(IsDeterministic = true, IsPrecise = false)]
public SqlGeometry STBuffer(
    double distance
)

[SqlMethodAttribute(IsDeterministic = true, IsPrecise = false)]
public:
SqlGeometry^ STBuffer(
    double distance
)

[<SqlMethodAttribute(IsDeterministic = true, IsPrecise = false)>]
member STBuffer : 
        distance:float -> SqlGeometry

public function STBuffer(
    distance : double
) : SqlGeometry

Paramètres

• distance
  Type : System.Double
  A double that specifies the distance from the SqlGeometry instance around which to calculate the buffer.

Valeur de retour

Type : Microsoft.SqlServer.Types.SqlGeometry
A SqlGeometry object that represents the union of all points whose distance from the calling SqlGeometry is less than or equal to the specified value.

Notes

STBuffer calculates a buffer in the same manner as BufferWithTolerance, that specifies tolerance = distance * .001 and relative = true.

A negative buffer removes all points within the given distance of the boundary of the SqlGeometry.

Voir aussi

Référence

SqlGeometry Classe

Espace de noms Microsoft.SqlServer.Types