DbGeometry Class
.NET Framework 4.5
Provides a base class for objects that define geometric shapes.
Namespace:
System.Data.Spatial
Assembly: System.Data.Entity (in System.Data.Entity.dll)
The DbGeometry type exposes the following members.
| Name | Description | |
|---|---|---|
 | Area | Gets a nullable double value that indicates the area of this DbGeometry value, which may be null if this value does not represent a surface. |
| Boundary | Gets the boundary of the DbGeometry objects. |
| Centroid | Gets the DbGeometry value that represents the centroid of this DbGeometry value, which may be null if this value does not represent a surface. |
| ConvexHull | Gets the convex hull of this DbGeometry value as another DbGeometry value. |
| CoordinateSystemId | Gets the coordinate system identifier of the DbGeometry object. |
| DefaultCoordinateSystemId | Gets the default coordinate system id (SRID) for geometry values. |
| Dimension | Gets the dimension of the given DbGeometry value or, if the value is a collection, the dimension of its largest element. |
| ElementCount | Gets the number of elements in this DbGeometry value, if it represents a geometry collection. <returns>The number of elements in this geometry value, if it represents a collection of other geometry values; otherwise null.</returns> |
| Elevation | Gets the elevation (Z coordinate) of this DbGeometry value, if it represents a point. <returns>The elevation (Z coordinate) of this geometry value, if it represents a point; otherwise null.</returns> |
| EndPoint | Gets a DbGeometry value representing the start point of this value, which may be null if this DbGeometry value does not represent a curve. |
| Envelope | Gets the envelope (minimum bounding box) of this DbGeometry value, as a geometry value. |
| ExteriorRing | Gets the DbGeometry value that represents the exterior ring of this DbGeometry value, which may be null if this value does not represent a polygon. |
| InteriorRingCount | Gets the number of interior rings in this DbGeometry value, if it represents a polygon. <returns>The number of elements in this geometry value, if it represents a polygon; otherwise null.</returns> |
| IsClosed | Gets a nullable Boolean value indicating whether this DbGeometry value is closed, which may be null if this value does not represent a curve. |
| IsEmpty | Gets a nullable Boolean value indicating whether this DbGeometry value is empty, which may be null if this value does not represent a curve. |
| IsRing | Gets a nullable Boolean value indicating whether this DbGeometry value is a ring, which may be null if this value does not represent a curve. |
| IsSimple | Gets a nullable Boolean value indicating whether this DbGeometry value is simple. |
| IsValid | Gets a nullable Boolean value indicating whether this DbGeometry value is valid. |
| Length | Gets a nullable double value that indicates the length of this DbGeometry value, which may be null if this value does not represent a curve. |
| Measure | Gets the Measure (M coordinate) of this DbGeometry value, if it represents a point. <returns>The Measure (M coordinate) value of this geometry value, if it represents a point; otherwise null.</returns> |
| PointCount | Gets the number of points in this DbGeometry value, if it represents a linestring or linear ring. <returns>The number of elements in this geometry value, if it represents a linestring or linear ring; otherwise null.</returns> |
| PointOnSurface | Gets a point on the surface of this DbGeometry value, which may be null if this value does not represent a surface. |
| ProviderValue | Gets a representation of this DbGeometry value that is specific to the underlying provider that constructed it. |
| SpatialTypeName | Gets a spatial type name representation of this DbGeometry value. |
| StartPoint | Gets a DbGeometry value representing the start point of this value, which may be null if this DbGeometry value does not represent a curve. |
| WellKnownValue | Gets or sets a data contract serializable well known representation of this DbGeometry value. |
| XCoordinate | Gets the X coordinate of this DbGeometry value, if it represents a point. <returns>The X coordinate value of this geometry value, if it represents a point; otherwise null.</returns> |
| YCoordinate | Gets the Y coordinate of this DbGeometry value, if it represents a point. <returns>The Y coordinate value of this geometry value, if it represents a point; otherwise null.</returns> |
| Name | Description | |
|---|---|---|
| AsBinary | Generates the well known binary representation of this DbGeometry value. |
| AsGml | Generates the Geography Markup Language (GML) representation of this DbGeometry value. |
| AsText | Generates the well known text representation of this DbGeometry value. Includes only X and Y coordinates for points. |
| Buffer | Returns a geometry object that represents the union of all points whose distance from a geometry instance is less than or equal to a specified value. |
| Contains | Determines whether this DbGeometry value spatially contains the specified DbGeometry argument. |
| Crosses | Determines whether this DbGeometry value spatially crosses the specified DbGeometry argument. |
| Difference | Computes the difference between this DbGeometry value and another DbGeometry value. |
| Disjoint | Determines whether this DbGeometry is spatially disjoint from the specified DbGeometry argument. |
| Distance | Computes the distance between the closest points in this DbGeometry value and another DbGeometry value. |
| ElementAt | Returns an element of this DbGeometry value from a specific position, if it represents a geometry collection. <param name="index">The position within this geometry value from which the element should be taken.</param><returns>The element in this geometry value at the specified position, if it represents a collection of other geometry values; otherwise null.</returns> |
| Equals(Object) | Determines whether the specified object is equal to the current object. (Inherited from Object.) |
| Finalize | Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.) |
| FromBinary(Byte[]) | Creates a new DbGeometry value based on the specified well known binary value. |
| FromBinary(Byte[], Int32) | Creates a new DbGeometry value based on the specified well known binary value and coordinate system identifier (SRID). |
| FromGml(String) | Creates a new DbGeometry value based on the specified Geography Markup Language (GML) value. |
| FromGml(String, Int32) | Creates a new DbGeometry value based on the specified Geography Markup Language (GML) value and coordinate system identifier (SRID). |
| FromText(String) | Creates a new DbGeometry value based on the specified well known text value. |
| FromText(String, Int32) | Creates a new DbGeometry value based on the specified well known text value and coordinate system identifier (SRID). |
| GeometryCollectionFromBinary | Creates a new DbGeometry collection value based on the specified well known binary value and coordinate system identifier (SRID). |
| GeometryCollectionFromText | Creates a new DbGeometry collection value based on the specified well known text value and coordinate system identifier (SRID). |
| GetHashCode | Serves as a hash function for a particular type. (Inherited from Object.) |
| GetType | Gets the Type of the current instance. (Inherited from Object.) |
| InteriorRingAt | Returns an interior ring from this DbGeometry value at a specific position, if it represents a polygon. <param name="index">The position within this geometry value from which the interior ring should be taken.</param><returns>The interior ring in this geometry value at the specified position, if it represents a polygon; otherwise null.</returns> |
| Intersection | Computes the intersection of this DbGeometry value and another DbGeometry value. |
| Intersects | Determines whether this DbGeometry value spatially intersects the specified DbGeometry argument. |
| LineFromBinary | Creates a new DbGeometry line value based on the specified well known binary value and coordinate system identifier (SRID). |
| LineFromText | Creates a new DbGeometry line value based on the specified well known text value and coordinate system identifier (SRID). |
| MemberwiseClone | Creates a shallow copy of the current Object. (Inherited from Object.) |
| MultiLineFromBinary | Returns the multiline value from a binary value. |
| MultiLineFromText | Returns the multiline value from a well-known text value. |
| MultiPointFromBinary | Returns the multipoint value from a well-known binary value. |
| MultiPointFromText | Returns the multipoint value from a well-known text value. |
| MultiPolygonFromBinary | Returns the multi polygon value from a well-known binary value. |
| MultiPolygonFromText | Returns the multi polygon value from a well-known binary value. |
| Overlaps | Determines whether this DbGeometry value spatially overlaps the specified DbGeometry argument. |
| PointAt | Returns an element of this DbGeometry value from a specific position, if it represents a linestring or linear ring. <param name="index">The position within this geometry value from which the element should be taken.</param><returns>The element in this geometry value at the specified position, if it represents a linestring or linear ring; otherwise null.</returns> |
| PointFromBinary | Creates a new DbGeometry point value based on the specified well known binary value and coordinate system identifier (SRID). |
| PointFromText | Creates a new DbGeometry point value based on the specified well known text value and coordinate system identifier (SRID). |
| PolygonFromBinary | Creates a new DbGeometry polygon value based on the specified well known binary value and coordinate system identifier (SRID). |
| PolygonFromText | Creates a new DbGeometry polygon value based on the specified well known text value and coordinate system identifier (SRID). |
| Relate | Determines whether this DbGeometry value spatially relates to the specified DbGeometry argument according to the given Dimensionally Extended Nine-Intersection Model (DE-9IM) intersection pattern. |
| SpatialEquals | Determines whether this DbGeometry is spatially equal to the specified DbGeometry argument. |
| SymmetricDifference | Computes the symmetric difference between this DbGeometry value and another DbGeometry value. |
| ToString | Returns a string representation of the geometry value. (Overrides Object.ToString().) |
| Touches | Determines whether this DbGeometry value spatially touches the specified DbGeometry argument. |
| Union | Computes the union of this DbGeometry value and another DbGeometry value. |
| Within | Determines whether this DbGeometry value is spatially within the specified DbGeometry argument. |
Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
