Package de.uni_kl.cs.discodnc.curves.dnc

Class LinearSegment_DNC

java.lang.Object

de.uni_kl.cs.discodnc.curves.dnc.LinearSegment_DNC

All Implemented Interfaces:

LinearSegment

public class LinearSegment_DNC
extends java.lang.Object
implements LinearSegment

Class representing linear segments of a curve. A linear segments starts at point (x0, y0) and continues to the right with slope grad. If leftopen is true, the point (x0,y0) is excluded from the segment, otherwise is included.

Field Summary

Fields

Modifier and Type	Field	Description
protected Num	grad	The gradient of the linear segment
protected boolean	leftopen	Whether the point (x0, y0) is part of the segment or not.
protected Num	x	The x-coordinate of the linear segment's starting point.
protected Num	y	The y-coordinate of the linear segment's starting point.

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	LinearSegment_DNC()	The default constructor.
	LinearSegment_DNC(LinearSegment segment)
	LinearSegment_DNC(Num x, Num y, Num grad, boolean leftopen)	A convenient constructor.
	LinearSegment_DNC(java.lang.String segment_str)

Method Summary

Modifier and Type	Method	Description
LinearSegment_DNC	copy()	Returns a copy of this instance.
boolean	equals(java.lang.Object obj)
Num	f(Num x)	Returns the function value of this linear segment at the given x-coordinate.
Num	getGrad()
Num	getX()
Num	getXIntersectionWith(LinearSegment other)	Returns the x-coordinate at which a co-linear line through this segment intersects a co-linear line through the segment other.
Num	getY()
int	hashCode()
boolean	isLeftopen()
void	setGrad(Num grad)
void	setLeftopen(boolean leftopen)
void	setX(Num x)
void	setY(Num y)
java.lang.String	toString()	Returns a string representation of this linear segment.

Methods inherited from interface de.uni_kl.cs.discodnc.curves.LinearSegment

add, createHorizontalLine, createLinearSegment, max, min, sub

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

x

protected Num x

The x-coordinate of the linear segment's starting point.

y

protected Num y

The y-coordinate of the linear segment's starting point.

grad

protected Num grad

The gradient of the linear segment

leftopen

protected boolean leftopen

Whether the point (x0, y0) is part of the segment or not.

Constructor Detail

LinearSegment_DNC

protected LinearSegment_DNC()

The default constructor.

LinearSegment_DNC

public LinearSegment_DNC(Num x,
                         Num y,
                         Num grad,
                         boolean leftopen)

A convenient constructor.

Parameters:

x - The x-coordinate this segments starts at.

y - The y-coordinate this segments starts at.

grad - The segments gradient.

leftopen - Set the segment to be left-open.

LinearSegment_DNC

public LinearSegment_DNC(LinearSegment segment)

LinearSegment_DNC

public LinearSegment_DNC(java.lang.String segment_str)
                  throws java.lang.Exception

Throws:

java.lang.Exception

Method Detail

f

public Num f(Num x)

Returns the function value of this linear segment at the given x-coordinate. Note that there is no test whether the function is defined at this location, but simply returns the the value of the co-linear line.

Specified by:

f in interface LinearSegment

Parameters:

x - the coordinate whose function value shall be returned

Returns:

the function value

getX

public Num getX()

Specified by:

getX in interface LinearSegment

setX

public void setX(Num x)

Specified by:

setX in interface LinearSegment

getY

public Num getY()

Specified by:

getY in interface LinearSegment

setY

public void setY(Num y)

Specified by:

setY in interface LinearSegment

getGrad

public Num getGrad()

Specified by:

getGrad in interface LinearSegment

setGrad

public void setGrad(Num grad)

Specified by:

setGrad in interface LinearSegment

isLeftopen

public boolean isLeftopen()

Specified by:

isLeftopen in interface LinearSegment

setLeftopen

public void setLeftopen(boolean leftopen)

Specified by:

setLeftopen in interface LinearSegment

getXIntersectionWith

public Num getXIntersectionWith(LinearSegment other)

Returns the x-coordinate at which a co-linear line through this segment intersects a co-linear line through the segment other.

Specified by:

getXIntersectionWith in interface LinearSegment

Parameters:

other - the other segment

Returns:

the x-coordinate at which the segments cross or NaN of they are parallel

copy

public LinearSegment_DNC copy()

Returns a copy of this instance.

Specified by:

copy in interface LinearSegment

Returns:

a copy of this instance.

equals

public boolean equals(java.lang.Object obj)

Specified by:

equals in interface LinearSegment

Overrides:

equals in class java.lang.Object

hashCode

public int hashCode()

Specified by:

hashCode in interface LinearSegment

Overrides:

hashCode in class java.lang.Object

toString

public java.lang.String toString()

Returns a string representation of this linear segment.

Specified by:

toString in interface LinearSegment

Overrides:

toString in class java.lang.Object

Returns:

the linear segment represented as a string.