指定默认地理参考 (SRID 4326, WGS84)。
命名空间： System.Spatial
程序集： System.Spatial（在 System.Spatial.dll 中）
语法
声明
Public Shared ReadOnly DefaultGeography As CoordinateSystem
用法
Dim value As CoordinateSystem
value = CoordinateSystem.DefaultGeography
public static readonly CoordinateSystem DefaultGeography
public:
static initonly CoordinateSystem^ DefaultGeography
static val DefaultGeography: CoordinateSystem
public static final var DefaultGeography : CoordinateSystem