Package etomica.modules.osmosis

Class P1HardWall

java.lang.Object

etomica.potential.Potential

etomica.potential.Potential1

etomica.modules.osmosis.P1HardWall

All Implemented Interfaces:

IPotential, IPotentialAtomic, PotentialHard

public class P1HardWall
extends Potential1
implements PotentialHard

Nested Class Summary

Nested classes/interfaces inherited from class etomica.potential.Potential1

Potential1.Intramolecular

Field Summary

Fields inherited from class etomica.potential.Potential

space

Fields inherited from class etomica.potential.Potential1

boundary

Constructor Summary

Constructors

Constructor	Description
P1HardWall(Space space)
P1HardWall(Space space, double sigma)

Method Summary

Modifier and Type	Method	Description
void	bump(IAtomList a, double falseTime)	Implements the collision dynamics.
double	collisionTime(IAtomList a, double falseTime)	Computes the time of collision of the given atom(s) with the hard potential, assuming no intervening collisions.
double	energy(IAtomList a)	Returns the interaction energy between the given atoms.
double	energyChange()	returns change in potential energy due to the last collision
double	getCollisionRadius()	Distance from the center of the sphere to the boundary at collision.
Dimension	getCollisionRadiusDimension()	Indicates collision radius has dimensions of Length.
double	lastCollisionVirial()	not yet implemented
Tensor	lastCollisionVirialTensor()	not yet implemented.
void	setCollisionRadius(double d)	Distance from the center of the sphere to the boundary at collision.

Methods inherited from interface etomica.potential.IPotential

getRange, nBody, setBox

Methods inherited from class java.lang.Object

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

Methods inherited from class etomica.potential.Potential

nBody

Methods inherited from class etomica.potential.Potential1

getRange, setBox

Constructor Detail

P1HardWall

public P1HardWall(Space space)

P1HardWall

public P1HardWall(Space space,
                  double sigma)

Method Detail

energy

public double energy(IAtomList a)

Description copied from class: Potential

Returns the interaction energy between the given atoms. There might be 0, 1, 2 or more atoms in the AtomSet.

Specified by:

energy in interface IPotentialAtomic

Specified by:

energy in class Potential

collisionTime

public double collisionTime(IAtomList a,
                            double falseTime)

Description copied from interface: PotentialHard

Computes the time of collision of the given atom(s) with the hard potential, assuming no intervening collisions. Usually assumes free-flight between collisions.

Specified by:

collisionTime in interface PotentialHard

bump

public void bump(IAtomList a,
                 double falseTime)

Description copied from interface: PotentialHard

Implements the collision dynamics. The given atom(s) is assumed to be at the point of collision. This method is called to change their momentum according to the action of the collision. Extensions can be defined to instead implement other, perhaps unphysical changes.

Specified by:

bump in interface PotentialHard

energyChange

public double energyChange()

Description copied from interface: PotentialHard

returns change in potential energy due to the last collision

Specified by:

energyChange in interface PotentialHard

lastCollisionVirial

public double lastCollisionVirial()

not yet implemented

Specified by:

lastCollisionVirial in interface PotentialHard

Returns:

double virial value

lastCollisionVirialTensor

public Tensor lastCollisionVirialTensor()

not yet implemented.

Specified by:

lastCollisionVirialTensor in interface PotentialHard

Returns:

Tensor

setCollisionRadius

public void setCollisionRadius(double d)

Distance from the center of the sphere to the boundary at collision.

getCollisionRadius

public double getCollisionRadius()

Distance from the center of the sphere to the boundary at collision.

getCollisionRadiusDimension

public Dimension getCollisionRadiusDimension()

Indicates collision radius has dimensions of Length.