SqlSpatialFunctions Class
Definition
Important
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Contains function stubs that expose SqlServer methods in Linq to Entities.
public static class SqlSpatialFunctionstype SqlSpatialFunctions = classPublic Class SqlSpatialFunctions- Inheritance
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SqlSpatialFunctions
Methods
| AsTextZM(DbGeography) |
Returns the Open Geospatial Consortium (OGC) Well-Known Text (WKT) representation of a geography instance augmented with any Z (elevation) and M (measure) values carried by the instance. |
| AsTextZM(DbGeometry) |
Returns the Open Geospatial Consortium (OGC) Well-Known Text (WKT) representation of a geography instance augmented with any Z (elevation) and M (measure) values carried by the instance. |
| BufferWithTolerance(DbGeography, Nullable<Double>, Nullable<Double>, Nullable<Boolean>) |
Returns a geometric object representing the union of all point values whose distance from a geography instance is less than or equal to a specified value, allowing for a specified tolerance. |
| BufferWithTolerance(DbGeometry, Nullable<Double>, Nullable<Double>, Nullable<Boolean>) |
Returns a geometric object representing the union of all point values whose distance from a geometry instance is less than or equal to a specified value, allowing for a specified tolerance. |
| EnvelopeAngle(DbGeography) |
Returns the maximum angle between the point returned by EnvelopeCenter() and a point in the geography instance in degrees. |
| EnvelopeCenter(DbGeography) |
Returns a point that can be used as the center of a bounding circle for the geography instance. |
| Filter(DbGeography, DbGeography) |
Offers a fast, index-only intersection method to determine if a geography instance intersects another SqlGeography instance, assuming an index is available. |
| Filter(DbGeometry, DbGeometry) |
Offers a fast, index-only intersection method to determine if a geography instance intersects another SqlGeometry instance, assuming an index is available. |
| InstanceOf(DbGeography, String) |
Tests if the SqlGeography instance is the same as the specified type. |
| InstanceOf(DbGeometry, String) |
Tests if the SqlGeometry instance is the same as the specified type. |
| MakeValid(DbGeometry) |
Converts an invalid geometry instance into a geometry instance with a valid Open Geospatial Consortium (OGC) type. |
| NumRings(DbGeography) |
Returns the total number of rings in a Polygon instance. |
| PointGeography(Nullable<Double>, Nullable<Double>, Nullable<Int32>) |
Constructs a geography instance representing a Point instance from its x and y values and a spatial reference ID (SRID). |
| PointGeometry(Nullable<Double>, Nullable<Double>, Nullable<Int32>) |
Constructs a geometry instance representing a Point instance from its x and y values and a spatial reference ID (SRID). |
| Reduce(DbGeography, Nullable<Double>) |
Returns an approximation of the given geography instance produced by running the Douglas-Peucker algorithm on the instance with the given tolerance. |
| Reduce(DbGeometry, Nullable<Double>) |
Returns an approximation of the given geography instance produced by running the Douglas-Peucker algorithm on the instance with the given tolerance. |
| RingN(DbGeography, Nullable<Int32>) |
Returns the specified ring of the SqlGeography instance: 1 ≤ n ≤ NumRings(). |
Applies to
Entity Framework