Class BarnesHutSimulation

java.lang.Object

org.episteme.natural.physics.classical.mechanics.nbody.BarnesHutSimulation

public class BarnesHutSimulation
extends Object

Barnes-Hut N-body gravitational simulation (O(N log N)).

References:

• Barnes, J., invalid input: '&' Hut, P. (1986). A hierarchical O(N log N) force-calculation algorithm. Nature, 324(6096), 446-449.

Since:

1.0

Author:

Silvere Martin-Michiellot, Gemini AI (Google DeepMind)

Constructor Summary

Constructors

Constructor	Description
BarnesHutSimulation()
BarnesHutSimulation(Real G, Real theta)

Method Summary

Modifier and Type	Method	Description
void	addParticle(Particle p)
void	buildTree()
void	computeForces()
List<Particle>	getParticles()
void	run(Real dt, int steps)
void	setSoftening(Real s)
void	setTheta(Real t)
void	step(Real dt)

Methods inherited from class Object

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

Constructor Details

BarnesHutSimulation

public BarnesHutSimulation()

BarnesHutSimulation

public BarnesHutSimulation(Real G,
 Real theta)

Method Details

addParticle

public void addParticle(Particle p)

getParticles

public List<Particle> getParticles()

setTheta

public void setTheta(Real t)

setSoftening

public void setSoftening(Real s)

buildTree

public void buildTree()

computeForces

public void computeForces()

step

public void step(Real dt)

run

public void run(Real dt,
 int steps)