DbSpatialServices.PointAt Method
Returns a point element of the given value.
Assembly: EntityFramework (in EntityFramework.dll)
Name | Description | |
---|---|---|
![]() | PointAt(DbGeography, Int32) | Returns a point element of the given DbGeography value, if it represents a linestring or linear ring. |
![]() | PointAt(DbGeometry, Int32) | Returns a point element of the given DbGeometry value, if it represents a linestring or linear ring. |
DbSpatialServices.PointAt Method (DbGeography, Int32)
Returns a point element of the given DbGeography value, if it represents a linestring or linear ring.
Parameters
- geographyValue
-
Type:
System.Data.Entity.Spatial.DbGeography
The geography value, which need not represent a linestring or linear ring.
- index
-
Type:
System.Int32
The position within the geography value from which the element should be taken.
Return Value
Type: System.Data.Entity.Spatial.DbGeographyThe point in geographyValue at position index, if it represents a linestring or linear ring; otherwise, null.
Exception | Condition |
---|---|
ArgumentNullException | geographyValue is null. |
ArgumentException | geographyValue is not compatible with this spatial services implementation. |
DbSpatialServices.PointAt Method (DbGeometry, Int32)
Returns a point element of the given DbGeometry value, if it represents a linestring or linear ring.
Parameters
- geometryValue
-
Type:
System.Data.Entity.Spatial.DbGeometry
The geometry value, which need not represent a linestring or linear ring.
- index
-
Type:
System.Int32
The position within the geometry value from which the element should be taken.
Return Value
Type: System.Data.Entity.Spatial.DbGeometryThe point in geometryValue at position index, if it represents a linestring or linear ring; otherwise, null.
Exception | Condition |
---|---|
ArgumentNullException | geometryValue is null. |
ArgumentException | geometryValue is not compatible with this spatial services implementation. |