PressureUnit.java
package org.djunits.unit;
import static org.djunits.unit.unitsystem.UnitSystem.CGS;
import static org.djunits.unit.unitsystem.UnitSystem.IMPERIAL;
import static org.djunits.unit.unitsystem.UnitSystem.MTS;
import static org.djunits.unit.unitsystem.UnitSystem.OTHER;
import static org.djunits.unit.unitsystem.UnitSystem.SI_DERIVED;
import org.djunits.unit.unitsystem.UnitSystem;
/**
* The units of pressure.
* <p>
* Copyright (c) 2015-2019 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: 2019-03-02 19:06:46 +0100 (Sat, 02 Mar 2019) $, @version $Revision: 342 $, by $Author: averbraeck $,
* initial version May 15, 2014 <br>
* @author <a href="http://www.tbm.tudelft.nl/averbraeck">Alexander Verbraeck</a>
*/
public class PressureUnit extends LinearUnit<PressureUnit>
{
/** */
private static final long serialVersionUID = 20140607L;
/** the unit of mass for the pressure unit, e.g., kilogram. */
private final MassUnit massUnit;
/** the unit of length for the pressure unit, e.g., meter. */
private final LengthUnit lengthUnit;
/** the unit of time for the pressure unit, e.g., second. */
private final DurationUnit durationUnit;
/** The SI unit for pressure is Pascal. */
public static final PressureUnit SI;
/** Pascal. */
public static final PressureUnit PASCAL;
/** hectoPascal. */
public static final PressureUnit HECTOPASCAL;
/** kiloPascal. */
public static final PressureUnit KILOPASCAL;
/** standard atmosphere. */
public static final PressureUnit ATMOSPHERE_STANDARD;
/** torr. */
public static final PressureUnit TORR;
/** technical atmosphere. */
public static final PressureUnit ATMOSPHERE_TECHNICAL;
/** barye. */
public static final PressureUnit BARYE;
/** bar. */
public static final PressureUnit BAR;
/** millibar. */
public static final PressureUnit MILLIBAR;
/** cm Hg. */
public static final PressureUnit CENTIMETER_MERCURY;
/** mm Hg. */
public static final PressureUnit MILLIMETER_MERCURY;
/** foot Hg. */
public static final PressureUnit FOOT_MERCURY;
/** inch Hg. */
public static final PressureUnit INCH_MERCURY;
/** kilogram-force per square millimeter. */
public static final PressureUnit KGF_PER_SQUARE_MM;
/** pound per square foot. */
public static final PressureUnit POUND_PER_SQUARE_FOOT;
/** pound per square inch. */
public static final PressureUnit POUND_PER_SQUARE_INCH;
/** pieze. */
public static final PressureUnit PIEZE;
static
{
SI = new PressureUnit(MassUnit.KILOGRAM, LengthUnit.METER, DurationUnit.SECOND, "PressureUnit.Pa", SI_DERIVED);
PASCAL = SI;
HECTOPASCAL = new PressureUnit("PressureUnit.hPa", SI_DERIVED, PASCAL, 100.0);
KILOPASCAL = new PressureUnit("PressureUnit.kPa", SI_DERIVED, PASCAL, 1000.0);
ATMOSPHERE_STANDARD = new PressureUnit("PressureUnit.atm", OTHER, PASCAL, 101325.0);
TORR = new PressureUnit("PressureUnit.Torr", OTHER, ATMOSPHERE_STANDARD, 1.0 / 760.0);
ATMOSPHERE_TECHNICAL = new PressureUnit(ForceUnit.KILOGRAM_FORCE, AreaUnit.SQUARE_CENTIMETER, "PressureUnit.at", OTHER);
BARYE = new PressureUnit(ForceUnit.DYNE, AreaUnit.SQUARE_CENTIMETER, "PressureUnit.Ba", CGS);
BAR = new PressureUnit("PressureUnit.bar", OTHER, PASCAL, 1E5);
MILLIBAR = new PressureUnit("PressureUnit.mbar", OTHER, PressureUnit.BAR, 0.001);
CENTIMETER_MERCURY = new PressureUnit("PressureUnit.cmHg", OTHER, PASCAL, 1333.224);
MILLIMETER_MERCURY = new PressureUnit("PressureUnit.mmHg", OTHER, PASCAL, 133.3224);
FOOT_MERCURY = new PressureUnit("PressureUnit.ftHg", IMPERIAL, PASCAL, 40.63666E3);
INCH_MERCURY = new PressureUnit("PressureUnit.inHg", IMPERIAL, PASCAL, 3.386389E3);
KGF_PER_SQUARE_MM =
new PressureUnit(ForceUnit.KILOGRAM_FORCE, AreaUnit.SQUARE_MILLIMETER, "PressureUnit.kgf/mm^2", OTHER);
POUND_PER_SQUARE_FOOT =
new PressureUnit(ForceUnit.POUND_FORCE, AreaUnit.SQUARE_FOOT, "PressureUnit.lbf/ft^2", IMPERIAL);
POUND_PER_SQUARE_INCH =
new PressureUnit(ForceUnit.POUND_FORCE, AreaUnit.SQUARE_INCH, "PressureUnit.lbf/in^2", IMPERIAL);
PIEZE = new PressureUnit(MassUnit.TONNE, LengthUnit.METER, DurationUnit.SECOND, "PressureUnit.pz", MTS);
}
/**
* Construct a pressure unit from mass, length and time units, e.g., a Pascal = kg/m.s^2.
* @param massUnit MassUnit; the unit of mass for the pressure unit, e.g., kilogram
* @param lengthUnit LengthUnit; the unit of length for the pressure unit, e.g., meter
* @param durationUnit DurationUnit; the unit of time for the pressure unit, e.g., second
* @param abbreviationKey String; the key to the locale file for the abbreviation of the unit
* @param unitSystem UnitSystem; the unit system, e.g. SI or Imperial
*/
private PressureUnit(final MassUnit massUnit, final LengthUnit lengthUnit, final DurationUnit durationUnit,
final String abbreviationKey, final UnitSystem unitSystem)
{
super(abbreviationKey, unitSystem, PASCAL, massUnit.getScaleFactor()
/ (lengthUnit.getScaleFactor() * durationUnit.getScaleFactor() * durationUnit.getScaleFactor()));
this.massUnit = massUnit;
this.lengthUnit = lengthUnit;
this.durationUnit = durationUnit;
}
/**
* Construct a user-defined pressure unit from mass, length and time units, e.g., a Pascal = kg/m.s^2.
* @param massUnit MassUnit; the unit of mass for the pressure unit, e.g., kilogram
* @param lengthUnit LengthUnit; the unit of length for the pressure unit, e.g., meter
* @param durationUnit DurationUnit; the unit of time for the pressure unit, e.g., second
* @param name String; the long name of the unit
* @param abbreviation String; the abbreviation of the unit
* @param unitSystem UnitSystem; the unit system, e.g. SI or Imperial
*/
public PressureUnit(final MassUnit massUnit, final LengthUnit lengthUnit, final DurationUnit durationUnit,
final String name, final String abbreviation, final UnitSystem unitSystem)
{
super(name, abbreviation, unitSystem, PASCAL, massUnit.getScaleFactor()
/ (lengthUnit.getScaleFactor() * durationUnit.getScaleFactor() * durationUnit.getScaleFactor()));
this.massUnit = massUnit;
this.lengthUnit = lengthUnit;
this.durationUnit = durationUnit;
}
/**
* Construct a pressure unit from force and area units, e.g. a Pascal = N/m^2.
* @param forceUnit ForceUnit; the unit of force for the pressure unit, e.g., Newton
* @param areaUnit AreaUnit; the unit of area for the pressure unit, e.g., m^2
* @param abbreviationKey String; the key to the locale file for the abbreviation of the unit
* @param unitSystem UnitSystem; the unit system, e.g. SI or Imperial
*/
private PressureUnit(final ForceUnit forceUnit, final AreaUnit areaUnit, final String abbreviationKey,
final UnitSystem unitSystem)
{
super(abbreviationKey, unitSystem, PASCAL, forceUnit.getScaleFactor() / areaUnit.getScaleFactor());
this.massUnit = forceUnit.getMassUnit();
this.lengthUnit = areaUnit.getLengthUnit();
this.durationUnit = forceUnit.getDurationUnit();
}
/**
* Construct a user-defined pressure unit from force and area units, e.g. a Pascal = N/m^2.
* @param forceUnit ForceUnit; the unit of force for the pressure unit, e.g., Newton
* @param areaUnit AreaUnit; the unit of area for the pressure unit, e.g., m^2
* @param name String; the long name of the unit
* @param abbreviation String; the abbreviation of the unit
* @param unitSystem UnitSystem; the unit system, e.g. SI or Imperial
*/
public PressureUnit(final ForceUnit forceUnit, final AreaUnit areaUnit, final String name, final String abbreviation,
final UnitSystem unitSystem)
{
super(name, abbreviation, unitSystem, PASCAL, forceUnit.getScaleFactor() / areaUnit.getScaleFactor());
this.massUnit = forceUnit.getMassUnit();
this.lengthUnit = areaUnit.getLengthUnit();
this.durationUnit = forceUnit.getDurationUnit();
}
/**
* Build a PressureUnit with a conversion factor to another PressureUnit.
* @param abbreviationKey String; the key to the locale file for the abbreviation of the unit
* @param unitSystem UnitSystem; the unit system, e.g. SI or Imperial
* @param referenceUnit PressureUnit; the unit to convert to
* @param scaleFactorToReferenceUnit double; multiply a value in this unit by the factor to convert to the given reference
* unit
*/
private PressureUnit(final String abbreviationKey, final UnitSystem unitSystem, final PressureUnit referenceUnit,
final double scaleFactorToReferenceUnit)
{
super(abbreviationKey, unitSystem, referenceUnit, scaleFactorToReferenceUnit);
this.massUnit = referenceUnit.getMassUnit();
this.lengthUnit = referenceUnit.getLengthUnit();
this.durationUnit = referenceUnit.getDurationUnit();
}
/**
* Build a user-defined PressureUnit with a conversion factor to another PressureUnit.
* @param name String; the long name of the unit
* @param abbreviation String; the abbreviation of the unit
* @param unitSystem UnitSystem; the unit system, e.g. SI or Imperial
* @param referenceUnit PressureUnit; the unit to convert to
* @param scaleFactorToReferenceUnit double; multiply a value in this unit by the factor to convert to the given reference
* unit
*/
public PressureUnit(final String name, final String abbreviation, final UnitSystem unitSystem,
final PressureUnit referenceUnit, final double scaleFactorToReferenceUnit)
{
super(name, abbreviation, unitSystem, referenceUnit, scaleFactorToReferenceUnit);
this.massUnit = referenceUnit.getMassUnit();
this.lengthUnit = referenceUnit.getLengthUnit();
this.durationUnit = referenceUnit.getDurationUnit();
}
/**
* @return massUnit
*/
public final MassUnit getMassUnit()
{
return this.massUnit;
}
/**
* @return lengthUnit
*/
public final LengthUnit getLengthUnit()
{
return this.lengthUnit;
}
/**
* @return durationUnit
*/
public final DurationUnit getDurationUnit()
{
return this.durationUnit;
}
/** {@inheritDoc} */
@Override
public final PressureUnit getStandardUnit()
{
return PASCAL;
}
/** {@inheritDoc} */
@Override
public final String getSICoefficientsString()
{
return "kg/ms2";
}
}