DbSpatialServices.GetStartPoint Method
Definition
Important
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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.DbGeographyPublic MustOverride Function GetStartPoint (geographyValue As DbGeography) As DbGeographyParameters
- geographyValue
- DbGeography
The geography value, which need not represent a curve.
Returns
The start point of the given DbGeography value.
Exceptions
geographyValue
is null.
geographyValue
is not compatible with this spatial services implementation.
Applies to
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.DbGeometryPublic MustOverride Function GetStartPoint (geometryValue As DbGeometry) As DbGeometryParameters
- geometryValue
- DbGeometry
The geometry value, which need not represent a curve.
Returns
The start point of the given DbGeometry value.
Exceptions
geometryValue
is null.
geometryValue
is not compatible with this spatial services implementation.
Applies to
Entity Framework