Returns an object that represents the convex hull of a 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 STConvexHull As SqlGeometry
'用途
Dim instance As SqlGeometry
Dim returnValue As SqlGeometry
returnValue = instance.STConvexHull()
[SqlMethodAttribute(IsDeterministic = true, IsPrecise = false)]
public SqlGeometry STConvexHull()
[SqlMethodAttribute(IsDeterministic = true, IsPrecise = false)]
public:
SqlGeometry^ STConvexHull()
[<SqlMethodAttribute(IsDeterministic = true, IsPrecise = false)>]
member STConvexHull : unit -> SqlGeometry
public function STConvexHull() : SqlGeometry
傳回值
型別：Microsoft.SqlServer.Types.SqlGeometry
A SqlGeometry value that represents the convex hull of the calling SqlGeometry.
備註
STConvexHull returns the smallest convex polygon that contains the given SqlGeometry instance. Points or co-linear LineString instances will produce an instance of the same type as that of the input.