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com.dautelle.physics
Class Length

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

All Implemented Interfaces:

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

public class Length

extends Quantity

This class represents the extent of something along its greatest dimension or the extent of space between two objects or places. The system unit for this quantity is "m" (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 Length

ZERO Represents a Length amounting to nothing.

Constructor Summary

protected

Length() Default constructor (allows for derivation).

Method Summary

static Length	arcOf(Length radius, Angle theta) Returns the length of a circular arc.
static Length	lengthOf(Quantity quantity) Returns the Length corresponding to the specified quantity.
static void	showAs(Unit unit) Shows Length instances in the specified unit.

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 Length ZERO

Represents a Length amounting to nothing.

Constructor Detail

Length

protected Length()

Default constructor (allows for derivation).

Method Detail

lengthOf

public static Length lengthOf(Quantity quantity)

Returns the Length corresponding to the specified quantity.

Parameters:

quantity - a quantity compatible with Length.

Returns:

the specified quantity or a new Length instance.

Throws:

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

showAs

public static void showAs(Unit unit)

Shows Length instances in the specified unit.

Parameters:

unit - the output unit for Length instances.

See Also:

Quantity.getOutputUnit()

arcOf

public static Length arcOf(Length radius,
                           Angle theta)

Returns the length of a circular arc.

Parameters:

radius - the circle radius.

theta - the central angle.

Returns:

the length of the specified circular arc.