DbSpatialServices.GetStartPoint Method

Definition

Namespace:

System.Data.Entity.Spatial

Assembly:

EntityFramework.dll

Overloads

GetStartPoint(DbGeography)	Returns a DbGeography value that represents the start point of the given DbGeography value, which may be null if the value does not represent a curve.
GetStartPoint(DbGeometry)	Returns a DbGeometry value that represents the start point of the given DbGeometry value, which may be null if the value does not represent a curve.

GetStartPoint(DbGeography)

Returns a DbGeography value that represents the start point of the given DbGeography value, which may be null if the value does not represent a curve.

public abstract System.Data.Entity.Spatial.DbGeography GetStartPoint (System.Data.Entity.Spatial.DbGeography geographyValue);

abstract member GetStartPoint : System.Data.Entity.Spatial.DbGeography -> System.Data.Entity.Spatial.DbGeography

Public MustOverride Function GetStartPoint (geographyValue As DbGeography) As DbGeography

Parameters

geographyValue

DbGeography

The geography value, which need not represent a curve.

Returns

DbGeography

The start point of the given DbGeography value.

Exceptions

ArgumentNullException

geographyValue is null.

ArgumentException

geographyValue is not compatible with this spatial services implementation.

GetStartPoint(DbGeometry)

Returns a DbGeometry value that represents the start point of the given DbGeometry value, which may be null if the value does not represent a curve.

public abstract System.Data.Entity.Spatial.DbGeometry GetStartPoint (System.Data.Entity.Spatial.DbGeometry geometryValue);

abstract member GetStartPoint : System.Data.Entity.Spatial.DbGeometry -> System.Data.Entity.Spatial.DbGeometry

Public MustOverride Function GetStartPoint (geometryValue As DbGeometry) As DbGeometry

Parameters

geometryValue

DbGeometry

The geometry value, which need not represent a curve.

Returns

DbGeometry

The start point of the given DbGeometry value.

Exceptions

ArgumentNullException

geometryValue is null.

ArgumentException

geometryValue is not compatible with this spatial services implementation.