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SpatialEdmFunctions.PointOnSurface(DbExpression) Method

  • Reference

Definition

Namespace:
System.Data.Entity.Core.Common.CommandTrees.ExpressionBuilder.Spatial
Assembly:
EntityFramework.dll

Creates a DbFunctionExpression that invokes the canonical 'PointOnSurface' function with the specified argument, which must have an Edm.Geometry result type. The result type of the expression is Edm.Geometry.

public static System.Data.Entity.Core.Common.CommandTrees.DbFunctionExpression PointOnSurface (this System.Data.Entity.Core.Common.CommandTrees.DbExpression geometryValue);
static member PointOnSurface : System.Data.Entity.Core.Common.CommandTrees.DbExpression -> System.Data.Entity.Core.Common.CommandTrees.DbFunctionExpression
<Extension()>
Public Function PointOnSurface (geometryValue As DbExpression) As DbFunctionExpression

Parameters

geometryValue
DbExpression

An expression that specifies the geometry surface value from which the point should be retrieved.

Returns

DbFunctionExpression

A new DbFunctionExpression that returns either a point guaranteed to be on the surface geometryValue or null if geometryValue is not a surface.

Applies to