com.revolsys.jts.algorithm

Class PointLocator

java.lang.Object

com.revolsys.jts.algorithm.PointLocator

public class PointLocator
extends Object

Computes the topological (Location) of a single point to a Geometry. A BoundaryNodeRule may be specified to control the evaluation of whether the point lies on the boundary or not The default rule is to use the the SFS Boundary Determination Rule

Notes:

• LinearRings do not enclose any area - points inside the ring are still in the EXTERIOR of the ring.

Instances of this class are not reentrant.

Version:

1.7

Constructor Summary

Constructors

Constructor and Description
PointLocator()

Method Summary

Methods

Modifier and Type	Method and Description
boolean	intersects(Point point, Geometry geometry) Convenience method to test a point for intersection with a Geometry
Location	locate(Point point, Geometry geometry) Computes the topological relationship (Location) of a single point to a Geometry.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

PointLocator

public PointLocator()

Method Detail

intersects

public boolean intersects(Point point,
                 Geometry geometry)

Convenience method to test a point for intersection with a Geometry

Parameters:

point - the coordinate to test

geometry - the Geometry to test

Returns:

true if the point is in the interior or boundary of the Geometry

locate

public Location locate(Point point,
              Geometry 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 SFS Boundary Determination Rule.

Returns:

the Location of the point relative to the input Geometry