JSci.physics
Class ClassicalParticle

java.lang.Object
  JSci.physics.Particle
      JSci.physics.AbstractClassicalParticle
          JSci.physics.ClassicalParticle

All Implemented Interfaces:

java.io.Serializable

public class ClassicalParticle

extends AbstractClassicalParticle

The ClassicalParticle class provides an object for encapsulating classical point particles. This class is suitable for representing particles that live in an arbitrary number of dimensions.

See Also:

Serialized Form

Field Summary

protected double	mass
protected AbstractDoubleVector	v
protected AbstractDoubleVector	x

Constructor Summary

ClassicalParticle(int n)
Constructs a classical particle.

Method Summary

ClassicalParticle	accelerate(AbstractDoubleVector a, double dt) Accelerates this particle.
ClassicalParticle	applyForce(AbstractDoubleVector F, double dt) Applies a force to this particle.
double	energy() Returns the energy of this particle.
double	getMass() Returns the mass of this particle.
AbstractDoubleVector	getMomentum()
AbstractDoubleVector	getPosition()
AbstractDoubleVector	getVelocity()
ClassicalParticle	move(double dt) Evolves this particle forward according to its kinematics.
void	setMass(double m) Sets the mass of this particle.
void	setMomentum(AbstractDoubleVector momentum)
void	setPosition(AbstractDoubleVector pos)
void	setVelocity(AbstractDoubleVector vel)
double	speed()

Methods inherited from class java.lang.Object

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

Field Detail

mass

protected double mass

x

protected AbstractDoubleVector x

v

protected AbstractDoubleVector v

Constructor Detail

ClassicalParticle

public ClassicalParticle(int n)

Constructs a classical particle.

Parameters:

n - number of dimensions.

Method Detail

setMass

public void setMass(double m)

Sets the mass of this particle.

getMass

public double getMass()

Returns the mass of this particle.

Specified by:

getMass in class AbstractClassicalParticle

setPosition

public void setPosition(AbstractDoubleVector pos)

getPosition

public AbstractDoubleVector getPosition()

Specified by:

getPosition in class AbstractClassicalParticle

setVelocity

public void setVelocity(AbstractDoubleVector vel)

getVelocity

public AbstractDoubleVector getVelocity()

Specified by:

getVelocity in class AbstractClassicalParticle

speed

public double speed()

Overrides:

speed in class AbstractClassicalParticle

setMomentum

public void setMomentum(AbstractDoubleVector momentum)

getMomentum

public AbstractDoubleVector getMomentum()

Overrides:

getMomentum in class AbstractClassicalParticle

energy

public double energy()

Returns the energy of this particle.

Overrides:

energy in class AbstractClassicalParticle

move

public ClassicalParticle move(double dt)

Evolves this particle forward according to its kinematics. This method changes the particle's position.

Returns:

this.

accelerate

public ClassicalParticle accelerate(AbstractDoubleVector a,
                                    double dt)

Accelerates this particle. This method changes the particle's velocity. It is additive, that is accelerate(a1, dt).accelerate(a2, dt) is equivalent to accelerate(a1+a2, dt).

Returns:

this.

applyForce

public ClassicalParticle applyForce(AbstractDoubleVector F,
                                    double dt)

Applies a force to this particle. This method changes the particle's velocity. It is additive, that is applyForce(F1, dt).applyForce(F2, dt) is equivalent to applyForce(F1+F2, dt).

Returns:

this.