ElectricalPotentialUnit.java
package org.djunits.unit;
import static org.djunits.unit.unitsystem.UnitSystem.CGS_EMU;
import static org.djunits.unit.unitsystem.UnitSystem.CGS_ESU;
import static org.djunits.unit.unitsystem.UnitSystem.SI_DERIVED;
import org.djunits.unit.unitsystem.UnitSystem;
/**
* The units of electrical potential (voltage).
* <p>
* Copyright (c) 2015-2016 Delft University of Technology, PO Box 5, 2600 AA, Delft, the Netherlands. All rights reserved. <br>
* BSD-style license. See <a href="http://djunits.org/docs/license.html">DJUNITS License</a>.
* <p>
* $LastChangedDate: 2016-05-28 14:25:52 +0200 (Sat, 28 May 2016) $, @version $Revision: 202 $, by $Author: averbraeck $,
* initial version May 15, 2014 <br>
* @author <a href="http://www.tbm.tudelft.nl/averbraeck">Alexander Verbraeck</a>
*/
public class ElectricalPotentialUnit extends LinearUnit<ElectricalPotentialUnit>
{
/** */
private static final long serialVersionUID = 20140607L;
/** the unit of mass for the electrical potential difference (voltage) unit, e.g., kilogram. */
private final MassUnit massUnit;
/** the unit of length for the electrical potential difference (voltage) unit, e.g., meters. */
private final LengthUnit lengthUnit;
/** the unit of electrical current for the electrical potential difference (voltage) unit, e.g., Ampere. */
private final ElectricalCurrentUnit electricalCurrentUnit;
/** the unit of time for the electrical potential difference (voltage) unit, e.g., second. */
private final TimeUnit timeUnit;
/** The SI unit for electrical potential is Volt. */
public static final ElectricalPotentialUnit SI;
/** Volt. */
public static final ElectricalPotentialUnit VOLT;
/** microvolt. */
public static final ElectricalPotentialUnit MICROVOLT;
/** millivolt. */
public static final ElectricalPotentialUnit MILLIVOLT;
/** kilovolt. */
public static final ElectricalPotentialUnit KILOVOLT;
/** megavolt. */
public static final ElectricalPotentialUnit MEGAVOLT;
/** statvolt. */
public static final ElectricalPotentialUnit STATVOLT;
/** abvolt. */
public static final ElectricalPotentialUnit ABVOLT;
static
{
SI =
new ElectricalPotentialUnit(MassUnit.KILOGRAM, LengthUnit.METER, ElectricalCurrentUnit.AMPERE, TimeUnit.SECOND,
"ElectricalPotentialUnit.volt", "ElectricalPotentialUnit.V", SI_DERIVED, true);
VOLT = SI;
MICROVOLT =
new ElectricalPotentialUnit("ElectricalPotentialUnit.microvolt", "ElectricalPotentialUnit.muV", SI_DERIVED,
VOLT, 1.0E-6, true);
MILLIVOLT =
new ElectricalPotentialUnit("ElectricalPotentialUnit.millivolt", "ElectricalPotentialUnit.mV", SI_DERIVED,
VOLT, 0.001, true);
KILOVOLT =
new ElectricalPotentialUnit("ElectricalPotentialUnit.kilovolt", "ElectricalPotentialUnit.kV", SI_DERIVED, VOLT,
1000.0, true);
MEGAVOLT =
new ElectricalPotentialUnit("ElectricalPotentialUnit.megavolt", "ElectricalPotentialUnit.MV", SI_DERIVED, VOLT,
1.0E6, true);
STATVOLT =
new ElectricalPotentialUnit("ElectricalPotentialUnit.statvolt", "ElectricalPotentialUnit.statV", CGS_ESU, VOLT,
299.792458, true);
ABVOLT =
new ElectricalPotentialUnit("ElectricalPotentialUnit.abvolt", "ElectricalPotentialUnit.abV", CGS_EMU, VOLT,
1.0E-8, true);
}
/**
* Define an ElectricalPotentialUnit based on its constituent base units, e.g. a V = km.m^2/A.s^3.
* @param massUnit the unit of mass for the electrical potential difference (voltage) unit, e.g., kilogram
* @param lengthUnit the unit of length for the electrical potential difference (voltage) unit, e.g., meter
* @param electricalCurrentUnit the unit of electrical current for the electrical potential difference (voltage) unit, e.g.,
* Ampere
* @param timeUnit the unit of time for the electrical potential difference (voltage) unit, e.g., second
* @param nameOrNameKey if standardUnit: the key to the locale file for the long name of the unit, otherwise the name itself
* @param abbreviationOrAbbreviationKey if standardUnit: the key to the locale file for the abbreviation of the unit,
* otherwise the abbreviation itself
* @param unitSystem the unit system, e.g. SI or Imperial
* @param standardUnit indicates whether it is a standard unit with a definition in the locale, or a user-defined unit
*/
@SuppressWarnings("checkstyle:parameternumber")
private ElectricalPotentialUnit(final MassUnit massUnit, final LengthUnit lengthUnit,
final ElectricalCurrentUnit electricalCurrentUnit, final TimeUnit timeUnit, final String nameOrNameKey,
final String abbreviationOrAbbreviationKey, final UnitSystem unitSystem, final boolean standardUnit)
{
super(nameOrNameKey, abbreviationOrAbbreviationKey, unitSystem, VOLT, massUnit.getConversionFactorToStandardUnit()
* lengthUnit.getConversionFactorToStandardUnit()
* lengthUnit.getConversionFactorToStandardUnit()
/ (electricalCurrentUnit.getConversionFactorToStandardUnit() * Math.pow(
timeUnit.getConversionFactorToStandardUnit(), 3.0)), standardUnit);
this.massUnit = massUnit;
this.lengthUnit = lengthUnit;
this.electricalCurrentUnit = electricalCurrentUnit;
this.timeUnit = timeUnit;
}
/**
* Define a user-defined ElectricalPotentialUnit based on its constituent base units, e.g. a V = km.m^2/A.s^3.
* @param massUnit the unit of mass for the electrical potential difference (voltage) unit, e.g., kilogram
* @param lengthUnit the unit of length for the electrical potential difference (voltage) unit, e.g., meter
* @param electricalCurrentUnit the unit of electrical current for the electrical potential difference (voltage) unit, e.g.,
* Ampere
* @param timeUnit the unit of time for the electrical potential difference (voltage) unit, e.g., second
* @param name the long name of the unit
* @param abbreviation the abbreviation of the unit
* @param unitSystem the unit system, e.g. SI or Imperial
*/
public ElectricalPotentialUnit(final MassUnit massUnit, final LengthUnit lengthUnit,
final ElectricalCurrentUnit electricalCurrentUnit, final TimeUnit timeUnit, final String name,
final String abbreviation, final UnitSystem unitSystem)
{
this(massUnit, lengthUnit, electricalCurrentUnit, timeUnit, name, abbreviation, unitSystem, false);
}
/**
* Build an ElectricalPotentialUnit based on power divided by current (V=W/A).
* @param powerUnit the unit of power for the electrical potential difference (voltage) unit, e.g., Watt
* @param electricalCurrentUnit the unit of electrical current for the electrical potential difference (voltage) unit, e.g.,
* Ampere
* @param nameOrNameKey if standardUnit: the key to the locale file for the long name of the unit, otherwise the name itself
* @param abbreviationOrAbbreviationKey if standardUnit: the key to the locale file for the abbreviation of the unit,
* otherwise the abbreviation itself
* @param unitSystem the unit system, e.g. SI or Imperial
* @param standardUnit indicates whether it is a standard unit with a definition in the locale, or a user-defined unit
*/
private ElectricalPotentialUnit(final PowerUnit powerUnit, final ElectricalCurrentUnit electricalCurrentUnit,
final String nameOrNameKey, final String abbreviationOrAbbreviationKey, final UnitSystem unitSystem,
final boolean standardUnit)
{
super(nameOrNameKey, abbreviationOrAbbreviationKey, unitSystem, VOLT, powerUnit.getConversionFactorToStandardUnit()
/ electricalCurrentUnit.getConversionFactorToStandardUnit(), standardUnit);
this.massUnit = powerUnit.getMassUnit();
this.lengthUnit = powerUnit.getLengthUnit();
this.electricalCurrentUnit = electricalCurrentUnit;
this.timeUnit = powerUnit.getTimeUnit();
}
/**
* Build a user-defined ElectricalPotentialUnit based on power divided by current (V=W/A).
* @param powerUnit the unit of power for the electrical potential difference (voltage) unit, e.g., Watt
* @param electricalCurrentUnit the unit of electrical current for the electrical potential difference (voltage) unit, e.g.,
* Ampere
* @param name the long name of the unit
* @param abbreviation the abbreviation of the unit
* @param unitSystem the unit system, e.g. SI or Imperial
*/
public ElectricalPotentialUnit(final PowerUnit powerUnit, final ElectricalCurrentUnit electricalCurrentUnit,
final String name, final String abbreviation, final UnitSystem unitSystem)
{
this(powerUnit, electricalCurrentUnit, name, abbreviation, unitSystem, false);
}
/**
* Build an ElectricalPotentialUnit with a conversion factor to another ElectricalPotentialUnit, e.g. a kV = 1000 V.
* @param nameOrNameKey if standardUnit: the key to the locale file for the long name of the unit, otherwise the name itself
* @param abbreviationOrAbbreviationKey if standardUnit: the key to the locale file for the abbreviation of the unit,
* otherwise the abbreviation itself
* @param unitSystem the unit system, e.g. SI or Imperial
* @param referenceUnit the unit to convert to
* @param conversionFactorToReferenceUnit multiply a value in this unit by the factor to convert to the given reference unit
* @param standardUnit indicates whether it is a standard unit with a definition in the locale, or a user-defined unit
*/
private ElectricalPotentialUnit(final String nameOrNameKey, final String abbreviationOrAbbreviationKey,
final UnitSystem unitSystem, final ElectricalPotentialUnit referenceUnit,
final double conversionFactorToReferenceUnit, final boolean standardUnit)
{
super(nameOrNameKey, abbreviationOrAbbreviationKey, unitSystem, referenceUnit, conversionFactorToReferenceUnit,
standardUnit);
this.massUnit = referenceUnit.getMassUnit();
this.lengthUnit = referenceUnit.getLengthUnit();
this.electricalCurrentUnit = referenceUnit.getElectricalCurrentUnit();
this.timeUnit = referenceUnit.getTimeUnit();
}
/**
* Build a user-defined ElectricalPotentialUnit with a conversion factor to another ElectricalPotentialUnit.
* @param name the long name of the unit
* @param abbreviation the abbreviation of the unit
* @param unitSystem the unit system, e.g. SI or Imperial
* @param referenceUnit the unit to convert to
* @param conversionFactorToReferenceUnit multiply a value in this unit by the factor to convert to the given reference unit
*/
public ElectricalPotentialUnit(final String name, final String abbreviation, final UnitSystem unitSystem,
final ElectricalPotentialUnit referenceUnit, final double conversionFactorToReferenceUnit)
{
this(name, abbreviation, unitSystem, referenceUnit, conversionFactorToReferenceUnit, false);
}
/**
* @return massUnit
*/
public final MassUnit getMassUnit()
{
return this.massUnit;
}
/**
* @return lengthUnit
*/
public final LengthUnit getLengthUnit()
{
return this.lengthUnit;
}
/**
* @return electricalCurrentUnit
*/
public final ElectricalCurrentUnit getElectricalCurrentUnit()
{
return this.electricalCurrentUnit;
}
/**
* @return timeUnit
*/
public final TimeUnit getTimeUnit()
{
return this.timeUnit;
}
/** {@inheritDoc} */
@Override
public final ElectricalPotentialUnit getStandardUnit()
{
return VOLT;
}
/** {@inheritDoc} */
@Override
public final String getSICoefficientsString()
{
return "kgm2/s3A";
}
}