Class RelateOp

Implements the SFS relate() generalized spatial predicate on two Geometrys.
The class supports specifying a custom IBoundaryNodeRule to be used during the relate computation.

Inheritance

Object

GeometryGraphOperation

RelateOp

Inherited Members

GeometryGraphOperation.lineIntersector

GeometryGraphOperation.resultPrecisionModel

GeometryGraphOperation.arg

GeometryGraphOperation.GetArgGeometry(Int32)

GeometryGraphOperation.ComputationPrecision

Object.Equals(Object)

Object.Equals(Object, Object)

Object.GetHashCode()

Object.GetType()

Object.MemberwiseClone()

Object.ReferenceEquals(Object, Object)

Object.ToString()

Namespace: NetTopologySuite.Operation.Relate

Assembly: NetTopologySuite.dll

Syntax

public class RelateOp : GeometryGraphOperation

Remarks

If named spatial predicates are used on the result IntersectionMatrix of the RelateOp, the result may or not be affected by the choice of BoundaryNodeRule, depending on the exact nature of the pattern. For instance, IsIntersects() is insensitive to the choice of BoundaryNodeRule, whereas IsTouches(Dimension, Dimension) is affected by the rule chosen.

Note: custom Boundary Node Rules do not (currently) affect the results of other Geometry methods (such as Boundary. The results of these methods may not be consistent with the relationship computed by a custom Boundary Node Rule.

Constructors

RelateOp(Geometry, Geometry)

Creates a new Relate operation, using the default (OGC SFS) Boundary Node Rule.

Declaration

public RelateOp(Geometry g0, Geometry g1)

Parameters

Type	Name	Description
Geometry	g0	a Geometry to relate
Geometry	g1	another Geometry to relate

RelateOp(Geometry, Geometry, IBoundaryNodeRule)

Creates a new Relate operation, using the default (OGC SFS) Boundary Node Rule.

Declaration

public RelateOp(Geometry g0, Geometry g1, IBoundaryNodeRule boundaryNodeRule)

Parameters

Type	Name	Description
Geometry	g0	a Geometry to relate
Geometry	g1	another Geometry to relate
IBoundaryNodeRule	boundaryNodeRule	The Boundary Node Rule to use

Properties

IntersectionMatrix

Gets the IntersectionMatrix for the spatial relationship between the input geometries.

Declaration

public IntersectionMatrix IntersectionMatrix { get; }

Property Value

Type	Description
IntersectionMatrix

Methods

Relate(Geometry, Geometry)

Computes the IntersectionMatrix for the spatial relationship between two Geometrys, using the default (OGC SFS) Boundary Node Rule

Declaration

public static IntersectionMatrix Relate(Geometry a, Geometry b)

Parameters

Type	Name	Description
Geometry	a	A geometry to test
Geometry	b	A geometry to test

Returns

Type	Description
IntersectionMatrix	The IntersectionMatrix for the spatial relationship between the geometries

Relate(Geometry, Geometry, IBoundaryNodeRule)

Computes the IntersectionMatrix for the spatial relationship between two Geometrys, using the specified Boundary Node Rule

Declaration

public static IntersectionMatrix Relate(Geometry a, Geometry b, IBoundaryNodeRule boundaryNodeRule)

Parameters

Type	Name	Description
Geometry	a	A geometry to test
Geometry	b	A geometry to test
IBoundaryNodeRule	boundaryNodeRule	The Boundary Node Rule to use

Returns

Type	Description
IntersectionMatrix	The IntersectionMatrix for the spatial relationship between the geometries