DbSpatialServices.GeographyPolygonFromBinary(Byte[], Int32) 方法

定义

创建基于指定已知二进制值和坐标系统标识符 (SRID) 的新 DbGeography 多多边形值。Creates a new DbGeography polygon value based on the specified well-known binary value and coordinate system identifier (SRID).

public:
 abstract System::Data::Spatial::DbGeography ^ GeographyPolygonFromBinary(cli::array <System::Byte> ^ polygonWellKnownBinary, int coordinateSystemId);
public abstract System.Data.Spatial.DbGeography GeographyPolygonFromBinary (byte[] polygonWellKnownBinary, int coordinateSystemId);
abstract member GeographyPolygonFromBinary : byte[] * int -> System.Data.Spatial.DbGeography
Public MustOverride Function GeographyPolygonFromBinary (polygonWellKnownBinary As Byte(), coordinateSystemId As Integer) As DbGeography

参数

polygonWellKnownBinary
Byte[]

包含地理值的知名二进制表示形式的字节数组。A byte array that contains a well-known binary representation of the geography value.

coordinateSystemId
Int32

新建 DbGeography 值应使用的坐标系的标识符。The identifier of the coordinate system that the new DbGeography value should use.

返回

DbGeography

通过指定坐标系统标识符 (SRID) 由知名二进制值定义的新的 DbGeographyDefaultCoordinateSystemIdA new DbGeography value as defined by the well-known binary value with the specified coordinate system identifier (SRID) (DefaultCoordinateSystemId).

例外

polygonWellKnownBinary

coordinateSystemId

适用于