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com.dautelle.physics
Class Angle

java.lang.Object
  java.lang.Number
      com.dautelle.math.numbers.RealtimeNumber
          com.dautelle.physics.Quantity
              com.dautelle.physics.Angle

All Implemented Interfaces:

java.lang.Comparable, Operable, Realtime, Representable, java.io.Serializable

public class Angle

extends Quantity

This class represents the figure formed by two lines diverging from a common point. The system unit for this quantity is "rad" (Système International d'Unités).

Version:

4.1, February 10, 2003

Author:

Jean-Marie Dautelle

See Also:

Serialized Form

Nested Class Summary

Nested classes inherited from class com.dautelle.physics.Quantity

Quantity.Factory, Quantity.Value

Field Summary

static Angle

ZERO Represents a Angle amounting to nothing.

Constructor Summary

protected

Angle() Default constructor (allows for derivation).

Method Summary

static Angle	angleOf(Quantity quantity) Returns the Angle corresponding to the specified quantity.
static Angle	atan2(Quantity y, Quantity x) Converts rectangular coordinates (x, y) to polar (ρ, θ).
Angle	bounded() Returns an Angle in the range of -π through π (system unit) by removing or adding a discrete number of revolution to this angle.
Scalar	cos() Returns the trigonometric cosine of this Angle.
static void	showAs(Unit unit) Shows Angle instances in the specified unit.
Scalar	sine() Returns the trigonometric sine of this Angle.
Scalar	tan() Returns the trigonometric tangent of this Angle.

Methods inherited from class com.dautelle.physics.Quantity

abs, add, appendTo, approxEquals, approxEquals, compareTo, divide, divide, doubleValue, doubleValue, equals, floatValue, floatValue, getAbsoluteError, getMaximum, getMinimum, getOutputUnit, getRelativeError, getSystemUnit, hashCode, intValue, intValue, inverse, isPossiblyZero, longValue, longValue, multiply, multiply, negate, opposite, plus, pow, random, reciprocal, root, subtract, times, toString, toString, toXml, valueOf, valueOf, valueOf, valueOf

Methods inherited from class com.dautelle.math.numbers.RealtimeNumber

clone, export, isLocalObject, isPoolObject, pow, recycle, toHeap

Methods inherited from class java.lang.Number

byteValue, shortValue

Methods inherited from class java.lang.Object

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

Field Detail

ZERO

public static final Angle ZERO

Represents a Angle amounting to nothing.

Constructor Detail

Angle

protected Angle()

Default constructor (allows for derivation).

Method Detail

angleOf

public static Angle angleOf(Quantity quantity)

Returns the Angle corresponding to the specified quantity.

Parameters:

quantity - a quantity compatible with Angle.

Returns:

the specified quantity or a new Angle instance.

Throws:

ConversionException - if the current model does not allow the specified quantity to be converted to Angle.

showAs

public static void showAs(Unit unit)

Shows Angle instances in the specified unit.

Parameters:

unit - the output unit for Angle instances.

See Also:

Quantity.getOutputUnit()

atan2

public static Angle atan2(Quantity y,
                          Quantity x)

Converts rectangular coordinates (x, y) to polar (ρ, θ). This method computes the phase θ by computing an arc tangent of y/x.

Parameters:

y - y coordinate

x - x coordinate

Returns:

the θ component of the point (ρ, θ) in polar coordinates that corresponds to the point(x, y) in Cartesian coordinates.

Throws:

java.lang.IllegalArgumentException - x and y represent quantities of different nature (system units are different).

sine

public Scalar sine()

Returns the trigonometric sine of this Angle.

Returns:

the sine of this angle.

cos

public Scalar cos()

Returns the trigonometric cosine of this Angle.

Returns:

the cosine of this angle.

tan

public Scalar tan()

Returns the trigonometric tangent of this Angle.

Returns:

the tangent of this angle.

bounded

public Angle bounded()

Returns an Angle in the range of -π through π (system unit) by removing or adding a discrete number of revolution to this angle.

Returns:

an angle in the the range of -π through π