SpatialEdmFunctions.PointOnSurface(DbExpression) Method
Definition
Important
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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:
[System::Runtime::CompilerServices::Extension]
static System::Data::Common::CommandTrees::DbFunctionExpression ^ PointOnSurface(System::Data::Common::CommandTrees::DbExpression ^ geometryValue);
public static System.Data.Common.CommandTrees.DbFunctionExpression PointOnSurface (this System.Data.Common.CommandTrees.DbExpression geometryValue);
static member PointOnSurface : System.Data.Common.CommandTrees.DbExpression -> System.Data.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
A new DbFunctionExpression that returns either a point guaranteed to be on the surface geometryValue
or null
if geometryValue
is not a surface.
Exceptions
geometryValue
geometryValue
Applies to
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