fi.utu.cs.physics
Class Tuple2

java.lang.Object
  |
  +--fi.utu.cs.physics.Tuple2

All Implemented Interfaces:

java.lang.Cloneable

Direct Known Subclasses:

Friction, Point2, Vector2

public abstract class Tuple2

extends java.lang.Object

implements java.lang.Cloneable

A two-element tuple of double-precision floating point values.

Constructor Summary

protected

Tuple2(double v1, double v2) Creates a new two-element tuple with the given values.

Method Summary

protected void	add(double v1, double v2) Adds values to the elements.
protected void	add(Tuple2 other) Adds the values of other to the elements.
java.lang.Object	clone() Creates and returns a copy of this tuple.
boolean	equals(java.lang.Object o) Returns true if o is of the type Tuple2 and the elements of o are equal to the corresponding elements in this tuple.
protected int	firstElementSign() Returns the sign of the first element.
protected double	getFirstElement() Returns the first element.
protected double	getSecondElement() Returns the second element.
int	hashCode() Returns a hash code value based on the elements of this tuple.
protected double	max() Returns the maximum of the elements.
protected double	min() Returns the minimum of the elements.
protected void	multiply(double value) Multiplies both elements with value.
protected void	negate() Negates the elements.
protected void	negateFirstElement() Negates the first element.
protected void	negateSecondElement() Negates the second element.
protected int	secondElementSign() Returns the sign of the second element.
protected void	set(double v1, double v2) Sets the elements.
protected void	set(Tuple2 other) Sets the elements to the same values as in other.
protected void	setFirstElement(double v) Sets the first element to the value v.
protected void	setSecondElement(double v) Sets the second element to the value v.
protected void	swap() Swaps the elements.
java.lang.String	toString() Returns a string that contains the values of the elements.

Methods inherited from class java.lang.Object

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

Constructor Detail

Tuple2

protected Tuple2(double v1,
                 double v2)

Creates a new two-element tuple with the given values.

Method Detail

getFirstElement

protected double getFirstElement()

Returns the first element.

getSecondElement

protected double getSecondElement()

Returns the second element.

setFirstElement

protected void setFirstElement(double v)

Sets the first element to the value v.

setSecondElement

protected void setSecondElement(double v)

Sets the second element to the value v.

set

protected void set(double v1,
                   double v2)

Sets the elements.

Parameters:

v1 - The value of the first element.

v2 - The value of the second element.

See Also:

set(Tuple2)

set

protected void set(Tuple2 other)

Sets the elements to the same values as in other.

add

protected void add(double v1,
                   double v2)

Adds values to the elements.

Parameters:

v1 - The value added to the first element.

v2 - The value added to the second element.

See Also:

add(Tuple2)

add

protected void add(Tuple2 other)

Adds the values of other to the elements.

negate

protected void negate()

Negates the elements.

negateFirstElement

protected void negateFirstElement()

Negates the first element.

negateSecondElement

protected void negateSecondElement()

Negates the second element.

multiply

protected void multiply(double value)

Multiplies both elements with value.

Since:

1.1

swap

protected void swap()

Swaps the elements.

min

protected double min()

Returns the minimum of the elements.

max

protected double max()

Returns the maximum of the elements.

firstElementSign

protected int firstElementSign()

Returns the sign of the first element.

Returns:

A negative integer if the sign is minus, a positive integer if the sign is plus, or zero if the element is zero.

Since:

1.1

secondElementSign

protected int secondElementSign()

Returns the sign of the second element.

Returns:

A negative integer if the sign is minus, a positive integer if the sign is plus, or zero if the element is zero.

Since:

1.1

equals

public boolean equals(java.lang.Object o)

Returns true if o is of the type Tuple2 and the elements of o are equal to the corresponding elements in this tuple.

Overrides:

equals in class java.lang.Object

hashCode

public int hashCode()

Returns a hash code value based on the elements of this tuple.

Overrides:

hashCode in class java.lang.Object

clone

public java.lang.Object clone()

Creates and returns a copy of this tuple.

Overrides:

clone in class java.lang.Object

toString

public java.lang.String toString()

Returns a string that contains the values of the elements.

Overrides:

toString in class java.lang.Object