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com.dautelle.physics
Class Torque

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

All Implemented Interfaces:

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

public class Torque

extends Quantity

This class represents the moment of a force. The system unit for this quantity is "N·m".

Note: The Newton-metre ("N·m") is also a way of exressing a Joule (unit of energy). However, torque is not energy. So, to avoid confusion, we will use the units "N·m" for torque and not "J". This distinction occurs due to the scalar nature of energy and the vector nature of torque.

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 Torque

ZERO Represents a Torque amounting to nothing.

Constructor Summary

protected

Torque() Default constructor (allows for derivation).

Method Summary

static void	showAs(Unit unit) Shows Torque instances in the specified unit.
static Torque	torqueOf(Quantity quantity) Returns the Torque corresponding to the specified quantity.

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 Torque ZERO

Represents a Torque amounting to nothing.

Constructor Detail

Torque

protected Torque()

Default constructor (allows for derivation).

Method Detail

torqueOf

public static Torque torqueOf(Quantity quantity)

Returns the Torque corresponding to the specified quantity.

Parameters:

quantity - a quantity compatible with Torque.

Returns:

the specified quantity or a new Torque instance.

Throws:

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

showAs

public static void showAs(Unit unit)

Shows Torque instances in the specified unit.

Parameters:

unit - the output unit for Torque instances.

See Also:

Quantity.getOutputUnit()