Package com.actelion.research.util

Class Angle

java.lang.Object

com.actelion.research.util.Angle

public class Angle
extends java.lang.Object

This class provides various operations on angles, while making sure that the values is always in the rangle from -pi >= v > pi.

Field Summary

Fields

Modifier and Type	Field	Description
double	TWO_PI

Constructor Summary

Constructors

Constructor	Description
Angle()
Angle(double value)
Angle(Angle a)

Method Summary

Modifier and Type	Method	Description
void	add(double value)
void	add(Angle a)
static Angle	arccos(double x)
static Angle	arcsin(double x)
static Angle	arctan(double y, double x)
double	cos()
static double	difference(double a2, double a1)	Determines the normalized difference between a2 and a1, i.e.
static double	difference(Angle a2, Angle a1)	Determines the normalized difference between a2 and a1, i.e.
double	getValue()
boolean	isGreaterThan(Angle a)	Determines whether this angle is on the greater value side of angle a, i.e.
boolean	isSmallerThan(Angle a)	Determines whether this angle is on the smaller value side of angle a, i.e.
static double	mean(Angle a1, Angle a2)	Determines the mean angle between a1 and a2 on that side of the circle where a1 and a2 have the shorter connection.
void	normalize()
void	setValue(double value)
double	sin()
void	subtract(double value)
void	subtract(Angle a)
double	tan()
double	toDegrees()
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

TWO_PI

public final double TWO_PI

See Also:

Constant Field Values

Constructor Detail

Angle

public Angle()

Angle

public Angle(Angle a)

Angle

public Angle(double value)

Method Detail

normalize

public void normalize()

toDegrees

public double toDegrees()

getValue

public double getValue()

setValue

public void setValue(double value)

cos

public double cos()

sin

public double sin()

tan

public double tan()

arcsin

public static Angle arcsin(double x)

arccos

public static Angle arccos(double x)

arctan

public static Angle arctan(double y,
                           double x)

mean

public static double mean(Angle a1,
                          Angle a2)

Determines the mean angle between a1 and a2 on that side of the circle where a1 and a2 have the shorter connection.

Parameters:

a1 -

a2 -

Returns:

difference

public static double difference(double a2,
                                double a1)

Determines the normalized difference between a2 and a1, i.e. the difference on that side where a1 and a2 are closer.

Parameters:

a2 -

a1 -

Returns:

signed value between -pi and +pi

difference

public static double difference(Angle a2,
                                Angle a1)

Determines the normalized difference between a2 and a1, i.e. the difference on that side where a1 and a2 are closer.

Parameters:

a2 -

a1 -

Returns:

signed value between -pi and +pi

add

public void add(double value)

add

public void add(Angle a)

subtract

public void subtract(double value)

subtract

public void subtract(Angle a)

isSmallerThan

public boolean isSmallerThan(Angle a)

Determines whether this angle is on the smaller value side of angle a, i.e. whether it is reached faster, when walking the circle towards lower numbers.

Parameters:

a -

Returns:

isGreaterThan

public boolean isGreaterThan(Angle a)

Determines whether this angle is on the greater value side of angle a, i.e. whether it is reached faster, when walking the circle towards higher numbers.

Parameters:

a -

Returns:

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object