See: Description
Interface  Description 

Dimensioned 
Interface for an object with an associated physical dimension.

Unit 
Interface used to specify the physical units to be used when inputting or
outputting a quantity.

Class  Description 

Ampere 
The ampere unit of electrical current.

Angle 
Base for all angular units.

Angstrom  
Area 
Base for all area units.

Bar 
The bar unit of pressure, equal to 10^5 N/m^2.

Barye 
The barye unit of pressure, equal to 1 dyn/cm^2.

BohrRadius 
The Borh Radius unit of length, corresponding to the size of a Hydrogen
atom's electron cloud.

Calorie 
The Joule unit of energy, equal to 1 Nm or 1 kgm^2/s^2.

Candela 
The candela is the luminous intensity, in a given direction, of a source that
emits monochromatic radiation of frequency 540 x 1012 hertz and that has a
radiant intensity in that direction of 1/683 watt per steradian.

Charge 
The dimension for electrical charge.

CompoundDimension  
CompoundUnit  
Coulomb 
The coulomb unit of electrical charge.

Count 
Unit class for the number, or quantity, of something.

CubicCentimeter 
The cubic centimeter unit of volume, cm^3.

CubicMeter 
The cubic meter unit of volume, m^3.

Current 
The dimension for electrical current.

Dalton  
Debye 
The debye unit of electrical dipole moment, equal to 10^18 statCcm,
or 3.33564e30 Cm.

Decimal 
Decimal representation of something that represents the fractional
amount of a whole (e.g., mole fraction) as a decimal value typically
between 0 and 1.

Degree 
Standard degree angular unit, such that for example a right angle is 90 degrees.

Dimension 
Parent of all Dimension classes, which describe the physical dimensions
(e.g., mass, length, force) of a quantity.

DimensionRatio 
Class to form a dimension from ratio of two dimensions.

Dipole 
Base unit for electrical dipole moment.

Dyne 
The dyne unit of force, equal to 1 gcm/s^2.

ElectricPotential 
The dimension for electrostatic potential.

Electron 
Unit of charge equal to the magnitude of the charge on an electron.

ElectronVolt 
The electronvolt unit of energy, equal to approximately 1.602e19 Joules.

Energy 
Dimension for all energy units.

Erg 
The erg unit of energy, equal to 1 dyncm or 1 gcm^2/s^2.

Force 
Base for all force units.

Fraction 
Dimension for a quantity representing a fractional amount.

Gram  
Hartree  
Joule 
The Joule unit of energy, equal to 1 Nm or 1 kgm^2/s^2.

Kelvin  
Length 
Dimension for all units of length.

Lister  
Liter 
The liter unit of volume, equal to 1000 cm^3 or 0.001 m^3 or 10^27 A^3.

LuminousIntensity 
The dimension for luminous intensity.

Mass 
Dimension for all units of mass.

Meter 
The meter unit of length, equal to 10^10 angstroms.

Mole 
The mole unit of quantity, approximately equal to 6.022e23 simulation units.

Newton 
The Newton unit of force, equal to 1 kgm/s^2.

Null 
Dimension specified dimensionless quantities which have no other interpretation
(e.g., the quantity is not known to be an angle, or a fraction).

Pascal 
The Pascal unit of pressure, equal to 1 N/m^2.

Percent 
Decimal representation of something that represents the fractional
amount of a whole (e.g., mole fraction) as a percentage value typically
between 0 and 100.

Picosecond 
Simulation unit of time.

Pixel 
Unit converting between simulation unit of length and pixels rendered in an
image.

Poise 
The Poise unit of viscosity, equal to 1 gram/(cmsec).

Prefix 
Base class for all unit prefixes, such as kilo, micro, nano, etc.

PrefixedUnit 
Implementation of the Unit interface formed from a base Unit (e.

Pressure 
Dimension for (3D) pressure.

Pressure2D 
Simulation unit of (2D) pressure is (DA/ps^2)/A = D/ps^2

Quantity 
The dimension for the quantity of discrete things (e.g.

Radian 
Simulation unit for the measure of an angle.

Second  
SimpleUnit 
Superclass for all base unit classes.

Statcoulomb 
The statcoulomb unit of electrical charge, which is the
standard unit of charge in the CGS unit system.

Temperature 
The temperature dimension.

Tester  
Time 
Dimension for all units of time.

Undefined 
Undefined dimension used for quantities with undefined or unknown dimensions.

UnitFilter  
UnitGraphics  
UnitRatio 
Class for constructing units forms as ratios of other units.

Viscosity 
Dimension for all units of viscosity, Mass/(LengthTime)

Volt 
The Volt unit of electric potential.

Volume 
Dimension for all volume units.

etomica.data
defines a Data class
which holds a DataInfo instance describing the Data; part of the information given in DataInfo
is a Dimension instance which specifies the physical dimensions of the data.
Dimension subclasses are defined for the fundamental dimensions and commonly encountered derived dimensions. These classes have names such as Length, Time, Volume, Energy, and so on. These classes all define static singleton instances with the field name DIMENSION; the field SIM_UNIT in each class gives an instance of Unit that corresponds to the unit derived from simulation units for that dimension. Other dimensions can be defined by constructing instances of CompoundDimension.
SimpleUnit is a basic class that holds a conversion factor, a Dimension instance and other descriptive information for implementing a basic Unit. Many specific units are defined by extending this class; examples include Kelvin, Bar, Joule, etc.
A PrefixedUnit class takes a Unit instance and a Prefix, which can be used to construct units such as kilograms (combining Prefix.KILO with Gram.UNIT).
Derived units that are not already defined can be constructed using the CompoundUnit class.
The package etomica.units.systems
defines constructs that
can collect the units defined by conventional unit systems, such as SI, cgs, English, etc.