Package etomica.data.meter

Class MeterPressureHard

java.lang.Object

etomica.data.DataSourceScalar

etomica.data.meter.MeterPressureHard

All Implemented Interfaces:

IDataSource, IntegratorHard.CollisionListener

Direct Known Subclasses:

DataSourceWallPressure, MeterOsmoticPressure

public class MeterPressureHard
extends DataSourceScalar
implements IntegratorHard.CollisionListener

Meter for the pressure (given as the compressibility factor) of a hard potential. Performs sum of collision virial over all collisions, and manipulates value to obtain the compressibility factor, PV/NkT.

Field Summary

Fields

Modifier and Type	Field	Description
protected int	dim
protected IntegratorHard	integratorHard
protected double	lastTime
protected double	virialSum

Fields inherited from class etomica.data.DataSourceScalar

data, dataInfo, tag

Constructor Summary

Constructors

Constructor	Description
MeterPressureHard(IntegratorHard integrator)

Method Summary

Modifier and Type	Method	Description
void	collisionAction(IntegratorHard.Agent agent)	Implementation of CollisionListener interface Adds collision virial (from potential) to accumulator
double	collisionValue(IntegratorHard.Agent agent)	Implementation of Meter.MeterCollisional interface.
double	getDataAsScalar()	Returns P = (NT - (virial sum)/((elapsed time)*T*(space dimension)))/V Virial sum and elapsed time apply to period since last call to this method.
IntegratorHard	getIntegrator()
void	reset()

Methods inherited from class etomica.data.DataSourceScalar

getData, getDataDouble, getDataInfo, getTag

Methods inherited from class java.lang.Object

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

Field Detail

dim

protected final int dim

virialSum

protected double virialSum

integratorHard

protected final IntegratorHard integratorHard

lastTime

protected double lastTime

Constructor Detail

MeterPressureHard

public MeterPressureHard(IntegratorHard integrator)

Method Detail

reset

public void reset()

getDataAsScalar

public double getDataAsScalar()

Returns P = (NT - (virial sum)/((elapsed time)*T*(space dimension)))/V Virial sum and elapsed time apply to period since last call to this method.

Specified by:

getDataAsScalar in class DataSourceScalar

collisionAction

public void collisionAction(IntegratorHard.Agent agent)

Implementation of CollisionListener interface Adds collision virial (from potential) to accumulator

Specified by:

collisionAction in interface IntegratorHard.CollisionListener

collisionValue

public double collisionValue(IntegratorHard.Agent agent)

Implementation of Meter.MeterCollisional interface. Returns -(collision virial). Suitable for tabulation of PV

getIntegrator

public IntegratorHard getIntegrator()