Class Particle

java.lang.Object

org.episteme.natural.physics.classical.mechanics.Particle

All Implemented Interfaces:

SpatialOctree.SpatialObject

Direct Known Subclasses:

Atom, CelestialBody

public class Particle
extends Object
implements SpatialOctree.SpatialObject

A particle in N-body simulation using Generic Linear Algebra. Modernized to use Real for all physical properties.

Implements SpatialOctree.SpatialObject for high-performance Barnes-Hut simulations.

Since:

1.0

Author:

Silvere Martin-Michiellot, Gemini AI (Google DeepMind)

Constructor Summary

Constructors

Constructor	Description
Particle(double x, double y, double z, double massKg)
Particle(Vector<Real> position, Vector<Real> velocity, Real mass)
Particle(Vector<Real> position, Vector<Real> velocity, Quantity<Mass> mass)

Method Summary

Modifier and Type	Method	Description
Real	distanceTo(Particle other)
Vector<Real>	getAcceleration()
Quantity<Mass>	getMass()
double	getMassValue()
Vector<Real>	getPosition()
Vector<Real>	getVelocity()
double	getX()
double	getY()
double	getZ()
Quantity<Energy>	kineticEnergy()	Calculates kinetic energy.
void	setAcceleration(double x, double y, double z)
void	setAcceleration(Vector<Real> acceleration)
void	setAcceleration(Real x, Real y, Real z)
void	setPosition(Vector<Real> position)
void	setPosition(Real x, Real y, Real z)
void	setVelocity(double x, double y, double z)
void	setVelocity(Vector<Real> velocity)
void	setVelocity(Real x, Real y, Real z)
String	toString()
void	updatePosition(Real dt)
void	updateVelocity(Real dt)

Methods inherited from class Object

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

Constructor Details

Particle

public Particle(double x,
 double y,
 double z,
 double massKg)

Particle

public Particle(Vector<Real> position,
 Vector<Real> velocity,
 Quantity<Mass> mass)

Particle

public Particle(Vector<Real> position,
 Vector<Real> velocity,
 Real mass)

Method Details

getPosition

public Vector<Real> getPosition()

getVelocity

public Vector<Real> getVelocity()

getAcceleration

public Vector<Real> getAcceleration()

getMass

public Quantity<Mass> getMass()

setPosition

public void setPosition(Vector<Real> position)

setVelocity

public void setVelocity(Vector<Real> velocity)

setAcceleration

public void setAcceleration(Vector<Real> acceleration)

getX

public double getX()

Specified by:

getX in interface SpatialOctree.SpatialObject

getY

public double getY()

Specified by:

getY in interface SpatialOctree.SpatialObject

getZ

public double getZ()

Specified by:

getZ in interface SpatialOctree.SpatialObject

getMassValue

public double getMassValue()

Specified by:

getMassValue in interface SpatialOctree.SpatialObject

setPosition

public void setPosition(Real x,
 Real y,
 Real z)

distanceTo

public Real distanceTo(Particle other)

updatePosition

public void updatePosition(Real dt)

updateVelocity

public void updateVelocity(Real dt)

kineticEnergy

public Quantity<Energy> kineticEnergy()

Calculates kinetic energy. E = 0.5 * m * v^2

setVelocity

public void setVelocity(Real x,
 Real y,
 Real z)

setAcceleration

public void setAcceleration(Real x,
 Real y,
 Real z)

setVelocity

public void setVelocity(double x,
 double y,
 double z)

setAcceleration

public void setAcceleration(double x,
 double y,
 double z)

toString

public String toString()

Overrides:

toString in class Object