com.vividsolutions.jump.warp

Class Quadrilateral

java.lang.Object

com.vividsolutions.jump.warp.Quadrilateral

All Implemented Interfaces:

Cloneable

public class Quadrilateral
extends Object
implements Cloneable

A simple four-sided polygon.

Constructor Summary

Constructors

Constructor and Description
Quadrilateral(com.vividsolutions.jts.geom.Coordinate p1, com.vividsolutions.jts.geom.Coordinate p2, com.vividsolutions.jts.geom.Coordinate p3, com.vividsolutions.jts.geom.Coordinate p4) Creates a Quadrilateral.

Method Summary

Methods

Modifier and Type	Method and Description
protected Object	clone()
com.vividsolutions.jts.geom.Envelope	getEnvelope()
com.vividsolutions.jts.geom.Coordinate	getP1() Returns the first vertex.
com.vividsolutions.jts.geom.Coordinate	getP2() Returns the second vertex.
com.vividsolutions.jts.geom.Coordinate	getP3() Returns the third vertex.
com.vividsolutions.jts.geom.Coordinate	getP4() Returns the fourth vertex.
boolean	isConvex() Returns whether this Quadrilateral is a convex polygon.
com.vividsolutions.jts.geom.Polygon	toPolygon() Converts this Quadrilateral to a JTS Polygon.
String	toString()
List	triangles() Creates two Triangles from this Quadrilateral.
Collection	verticesOutside(Collection vertices) Filters out points that lie inside this Quadrilateral

Methods inherited from class java.lang.Object

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

Constructor Detail

Quadrilateral

public Quadrilateral(com.vividsolutions.jts.geom.Coordinate p1,
             com.vividsolutions.jts.geom.Coordinate p2,
             com.vividsolutions.jts.geom.Coordinate p3,
             com.vividsolutions.jts.geom.Coordinate p4)

Creates a Quadrilateral.

Parameters:

p1 - one vertex

p2 - another vertex

p3 - another vertex

p4 - another vertex

Method Detail

getEnvelope

public com.vividsolutions.jts.geom.Envelope getEnvelope()

clone

protected Object clone()

Overrides:

clone in class Object

isConvex

public boolean isConvex()

Returns whether this Quadrilateral is a convex polygon.

Returns:

whether the diagonals intersect

triangles

public List triangles()

Creates two Triangles from this Quadrilateral.

Returns:

two Triangles: P1-P2-P3 and P1-P4-P3

toString

public String toString()

Overrides:

toString in class Object

getP1

public com.vividsolutions.jts.geom.Coordinate getP1()

Returns the first vertex.

Returns:

the first vertex

getP2

public com.vividsolutions.jts.geom.Coordinate getP2()

Returns the second vertex.

Returns:

the second vertex

getP3

public com.vividsolutions.jts.geom.Coordinate getP3()

Returns the third vertex.

Returns:

the third vertex

getP4

public com.vividsolutions.jts.geom.Coordinate getP4()

Returns the fourth vertex.

Returns:

the fourth vertex

toPolygon

public com.vividsolutions.jts.geom.Polygon toPolygon()

Converts this Quadrilateral to a JTS Polygon.

Returns:

a new JTS Polygon with one shell and no holes

verticesOutside

public Collection verticesOutside(Collection vertices)

Filters out points that lie inside this Quadrilateral

Parameters:

vertices - points to check

Returns:

those points which lie outside this Quadrilateral