DbSpatialServices.GeographyLineFromBinary 方法
[此頁面專屬於 Entity Framework 第 6 版。最新版本可從 'Entity Framework' NuGet 套件取得。如需 Entity Framework 的詳細資訊，請參閱 msdn.com/data/ef。]
根據指定的已知二進位值和座標系統識別項 (SRID)，建立新的 DbGeography 線值。
命名空間： System.Data.Entity.Spatial
組件： EntityFramework (在 EntityFramework.dll 中)
語法
'宣告
Public MustOverride Function GeographyLineFromBinary ( _
lineWellKnownBinary As Byte(), _
coordinateSystemId As Integer _
) As DbGeography
'用途
Dim instance As DbSpatialServices
Dim lineWellKnownBinary As Byte()
Dim coordinateSystemId As Integer
Dim returnValue As DbGeography
returnValue = instance.GeographyLineFromBinary(lineWellKnownBinary, _
coordinateSystemId)
public abstract DbGeography GeographyLineFromBinary(
byte[] lineWellKnownBinary,
int coordinateSystemId
)
public:
virtual DbGeography^ GeographyLineFromBinary(
array<unsigned char>^ lineWellKnownBinary,
int coordinateSystemId
) abstract
abstract GeographyLineFromBinary :
lineWellKnownBinary:byte[] *
coordinateSystemId:int -> DbGeography
public abstract function GeographyLineFromBinary(
lineWellKnownBinary : byte[],
coordinateSystemId : int
) : DbGeography
參數
- lineWellKnownBinary
類型：System.Byte[]
包含地理位置值的已知二進位表示法的位元組陣列。
- coordinateSystemId
類型：System.Int32
新的 DbGeography 值應該使用的座標系統的識別項。
傳回值
類型：System.Data.Entity.Spatial.DbGeography
新的 DbGeography 值，由具有指定的座標系統識別項 (SRID) (DefaultCoordinateSystemId) 的已知二進位值所定義。