com.vividsolutions.jts.geom.prep

Class PreparedLineStringIntersects

java.lang.Object

com.vividsolutions.jts.geom.prep.PreparedLineStringIntersects

public class PreparedLineStringIntersects
extends java.lang.Object

Computes the intersects spatial relationship predicate for a target PreparedLineString relative to other Geometry classes. Uses short-circuit tests and indexing to improve performance.

Author:

Martin Davis

Field Summary

Fields

Modifier and Type	Field and Description
protected PreparedLineString	prepLine

Constructor Summary

Constructors

Constructor and Description
PreparedLineStringIntersects(PreparedLineString prepLine) Creates an instance of this operation.

Method Summary

Methods

Modifier and Type	Method and Description
boolean	intersects(Geometry geom) Tests whether this geometry intersects a given geometry.
static boolean	intersects(PreparedLineString prep, Geometry geom) Computes the intersects predicate between a PreparedLineString and a Geometry.
protected boolean	isAnyTestPointInTarget(Geometry testGeom) Tests whether any representative point of the test Geometry intersects the target geometry.

Methods inherited from class java.lang.Object

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

Field Detail

prepLine

protected PreparedLineString prepLine

Constructor Detail

PreparedLineStringIntersects

public PreparedLineStringIntersects(PreparedLineString prepLine)

Creates an instance of this operation.

Parameters:

prepPoly - the target PreparedLineString

Method Detail

intersects

public static boolean intersects(PreparedLineString prep,
                 Geometry geom)

Computes the intersects predicate between a PreparedLineString and a Geometry.

Parameters:

prep - the prepared linestring

geom - a test geometry

Returns:

true if the linestring intersects the geometry

intersects

public boolean intersects(Geometry geom)

Tests whether this geometry intersects a given geometry.

Parameters:

geom - the test geometry

Returns:

true if the test geometry intersects

isAnyTestPointInTarget

protected boolean isAnyTestPointInTarget(Geometry testGeom)

Tests whether any representative point of the test Geometry intersects the target geometry. Only handles test geometries which are Puntal (dimension 0)

Parameters:

geom - a Puntal geometry to test

Returns:

true if any point of the argument intersects the prepared geometry