Module fr.inria.MochyCore

Package fr.inria.mochy.core.trajectory

Class Segment

java.lang.Object

fr.inria.mochy.core.trajectory.Segment

public class Segment
extends Object

segment has increasing abscissae and a decreasing ordinate it defines a part of a trajectory and contains two points

Constructor Summary

Constructors

Constructor	Description
Segment(float x0, float y0, float x1, float y1)
Segment(Point p0, Point p1)

Method Summary

Modifier and Type	Method	Description
boolean	belong(Point p)
Segment	copy()
Float	cross(Segment segment)	return null if the current segment never cross the segment in parameter else : return the abscissa of the cross' point the equation is alpha*x+beta = alpha2*x+beta2 => x = (-beta+beta2)/(alpha-alpha2)
void	drop()
float	getAlpha()
float	getBeta()
Point	getP0()
Point	getP1()
boolean	hasNext()
boolean	isHorizontal()
Float	ordinate(float x)	return the ordinate of a x abscissa value return null if x is not on the segment
void	setP0(Point p0)
void	setP1(Point p1)
void	shiftLeft(float x)
void	shiftRight(float x)

Methods inherited from class java.lang.Object

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

Constructor Detail

Segment

public Segment(Point p0,
               Point p1)

Segment

public Segment(float x0,
               float y0,
               float x1,
               float y1)

Method Detail

ordinate

public Float ordinate(float x)

return the ordinate of a x abscissa value return null if x is not on the segment

belong

public boolean belong(Point p)

cross

public Float cross(Segment segment)

return null if the current segment never cross the segment in parameter else : return the abscissa of the cross' point the equation is alpha*x+beta = alpha2*x+beta2 => x = (-beta+beta2)/(alpha-alpha2)

copy

public Segment copy()

shiftRight

public void shiftRight(float x)

shiftLeft

public void shiftLeft(float x)

isHorizontal

public boolean isHorizontal()

drop

public void drop()

getAlpha

public float getAlpha()

getBeta

public float getBeta()

hasNext

public boolean hasNext()

getP0

public Point getP0()

setP0

public void setP0(Point p0)

getP1

public Point getP1()

setP1

public void setP1(Point p1)