ProGAL.geom2d

Class LineSegment

java.lang.Object

ProGAL.geom2d.LineSegment

All Implemented Interfaces:

Shape

public class LineSegment
extends java.lang.Object
implements Shape

Field Summary

Fields

Modifier and Type	Field and Description
protected Point	a
protected Point	b

Constructor Summary

Constructors

Constructor and Description
LineSegment(Point a, Point b)

Method Summary

Modifier and Type	Method and Description
LineSegment	clone()
boolean	contains(Point p)
double	distance(Point p)
Point	getA()
Point	getB()
Point	getCenter() Get the geometric center of the shape.
double	getLength() returns the length of the line segment
double	getSquaredLength() returns the squared length of the segment
boolean	intersects(LineSegment s) returns TRUE if this line segment properly intersects line segment s.
LineSegment	reverse() swaps the end-points of this segment
void	setA(Point p)
void	setB(Point p)
void	toConsole()
void	toScene(J2DScene scene)
void	toScene(J2DScene scene, java.awt.Color clr)
void	toScene(J2DScene scene, java.awt.Color clr, double width)
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

a

protected Point a

b

protected Point b

Constructor Detail

LineSegment

public LineSegment(Point a,
                   Point b)

Method Detail

getA

public Point getA()

getB

public Point getB()

setA

public void setA(Point p)

setB

public void setB(Point p)

getLength

public double getLength()

returns the length of the line segment

getSquaredLength

public double getSquaredLength()

returns the squared length of the segment

clone

public LineSegment clone()

Overrides:

clone in class java.lang.Object

getCenter

public Point getCenter()

Description copied from interface: Shape

Get the geometric center of the shape. The center of a shape can be interpreted in many ways (center of mass, circumcenter, inscribed center etc.). No strict requirement is given here, but typically the circumcenter should be supplied. This method is most prominently used to find the average center-position of a collection of shapes such that scene-viewers can be centered on the scene.

Specified by:

getCenter in interface Shape

reverse

public LineSegment reverse()

swaps the end-points of this segment

intersects

public boolean intersects(LineSegment s)

returns TRUE if this line segment properly intersects line segment s.

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

toConsole

public void toConsole()

toScene

public void toScene(J2DScene scene)

toScene

public void toScene(J2DScene scene,
                    java.awt.Color clr)

toScene

public void toScene(J2DScene scene,
                    java.awt.Color clr,
                    double width)

distance

public double distance(Point p)

contains

public boolean contains(Point p)

Specified by:

contains in interface Shape