Class PointLocator

Computes the topological relationship (Location) of a single point to a Geometry.

Inheritance

object

PointLocator

Inherited Members

object.Equals(object)

object.Equals(object, object)

object.GetHashCode()

object.GetType()

object.MemberwiseClone()

object.ReferenceEquals(object, object)

object.ToString()

Namespace: NetTopologySuite.Algorithm

Assembly: NetTopologySuite.dll

Syntax

public class PointLocator

Remarks

A IBoundaryNodeRule may be specified to control the evaluation of whether the point lies on the boundary or not The default rule is to use the SFS Boundary Determination Rule

Notes:

Instances of this class are not reentrant.

Constructors

PointLocator()

Initializes a new instance of the PointLocator class.

The default boundary rule is EndpointBoundaryRule.

Declaration

public PointLocator()

PointLocator(IBoundaryNodeRule)

Initializes a new instance of the PointLocator class using the provided boundaryRule.

Declaration

public PointLocator(IBoundaryNodeRule boundaryRule)

Parameters

Type	Name	Description
IBoundaryNodeRule	boundaryRule	The boundary rule to use.

Methods

Intersects(Coordinate, Geometry)

Convenience method to test a point for intersection with a Geometry

Declaration

public bool Intersects(Coordinate p, Geometry geom)

Parameters

Type	Name	Description
Coordinate	p	The coordinate to test.
Geometry	geom	The Geometry to test.

Returns

Type	Description
bool	true if the point is in the interior or boundary of the Geometry.

Locate(Coordinate, Geometry)

Computes the topological relationship ({Location}) of a single point to a Geometry. It handles both single-element and multi-element Geometries. The algorithm for multi-part Geometries takes into account the boundaryDetermination rule.

Declaration

public Location Locate(Coordinate p, Geometry geom)

Parameters

Type	Name	Description
Coordinate	p
Geometry	geom

Returns

Type	Description
Location	The Location of the point relative to the input Geometry.