DbSpatialServices.GetPointOnSurface(DbGeometry) 方法
定义
返回表示给定 DbGeometry 值表面上的点的DbGeometry 值,如果该值不表示图面则可能为 null。Returns a DbGeometry value that represents a point on the surface of the given DbGeometry value, which may be null if the value does not represent a surface.
public:
abstract System::Data::Spatial::DbGeometry ^ GetPointOnSurface(System::Data::Spatial::DbGeometry ^ geometryValue);
public abstract System.Data.Spatial.DbGeometry GetPointOnSurface (System.Data.Spatial.DbGeometry geometryValue);
abstract member GetPointOnSurface : System.Data.Spatial.DbGeometry -> System.Data.Spatial.DbGeometry
Public MustOverride Function GetPointOnSurface (geometryValue As DbGeometry) As DbGeometry
参数
- geometryValue
- DbGeometry
不需要表示平面的几何图形值。The geometry value, which need not represent a surface.
返回
一个 DbGeometry 值,表示给定的 DbGeometry 值表面上的点。A DbGeometry value that represents a point on the surface of the given DbGeometry value.
例外
geometryValue
geometryValue