Volume.java
package org.djunits.quantity;
import org.djunits.quantity.def.Quantity;
import org.djunits.unit.AbstractUnit;
import org.djunits.unit.UnitRuntimeException;
import org.djunits.unit.Unitless;
import org.djunits.unit.Units;
import org.djunits.unit.scale.LinearScale;
import org.djunits.unit.scale.Scale;
import org.djunits.unit.si.SIUnit;
import org.djunits.unit.system.UnitSystem;
/**
* Volume is the amount of three-dimensional space occupied by matter, measured in cubic meters (m3).
* <p>
* Copyright (c) 2025-2026 Delft University of Technology, Jaffalaan 5, 2628 BX Delft, the Netherlands. All rights reserved. See
* for project information <a href="https://djunits.org" target="_blank">https://djunits.org</a>. The DJUNITS project is
* distributed under a <a href="https://djunits.org/docs/license.html" target="_blank">three-clause BSD-style license</a>.
* @author Alexander Verbraeck
*/
public class Volume extends Quantity<Volume, Volume.Unit>
{
/** Constant with value zero. */
public static final Volume ZERO = Volume.ofSi(0.0);
/** Constant with value one. */
public static final Volume ONE = Volume.ofSi(1.0);
/** Constant with value NaN. */
@SuppressWarnings("checkstyle:constantname")
public static final Volume NaN = Volume.ofSi(Double.NaN);
/** Constant with value POSITIVE_INFINITY. */
public static final Volume POSITIVE_INFINITY = Volume.ofSi(Double.POSITIVE_INFINITY);
/** Constant with value NEGATIVE_INFINITY. */
public static final Volume NEGATIVE_INFINITY = Volume.ofSi(Double.NEGATIVE_INFINITY);
/** Constant with value MAX_VALUE. */
public static final Volume POS_MAXVALUE = Volume.ofSi(Double.MAX_VALUE);
/** Constant with value -MAX_VALUE. */
public static final Volume NEG_MAXVALUE = Volume.ofSi(-Double.MAX_VALUE);
/** */
private static final long serialVersionUID = 600L;
/**
* Instantiate a Volume quantity with a unit.
* @param value the value, expressed in the unit
* @param unit the unit in which the value is expressed
*/
public Volume(final double value, final Volume.Unit unit)
{
super(value, unit);
}
/**
* Instantiate a Volume quantity with a unit, expressed as a String.
* @param value the value, expressed in the unit
* @param abbreviation the String abbreviation of the unit in which the value is expressed
*/
public Volume(final double value, final String abbreviation)
{
this(value, Units.resolve(Volume.Unit.class, abbreviation));
}
/**
* Construct Volume quantity.
* @param value Scalar from which to construct this instance
*/
public Volume(final Volume value)
{
super(value.si(), Volume.Unit.SI);
setDisplayUnit(value.getDisplayUnit());
}
/**
* Return a Volume instance based on an SI value.
* @param si the si value
* @return the Volume instance based on an SI value
*/
public static Volume ofSi(final double si)
{
return new Volume(si, Volume.Unit.SI);
}
@Override
public Volume instantiate(final double si)
{
return ofSi(si);
}
@Override
public SIUnit siUnit()
{
return Volume.Unit.SI_UNIT;
}
/**
* Returns a Volume representation of a textual representation of a value with a unit. The String representation that can be
* parsed is the double value in the unit, followed by a localized or English abbreviation of the unit. Spaces are allowed,
* but not required, between the value and the unit.
* @param text the textual representation to parse into a Volume
* @return the Scalar representation of the value in its unit
* @throws IllegalArgumentException when the text cannot be parsed
* @throws NullPointerException when the text argument is null
*/
public static Volume valueOf(final String text)
{
return Quantity.valueOf(text, ZERO);
}
/**
* Returns a Volume based on a value and the textual representation of the unit, which can be localized.
* @param value the value to use
* @param unitString the textual representation of the unit
* @return the Scalar representation of the value in its unit
* @throws IllegalArgumentException when the unit cannot be parsed or is incorrect
* @throws NullPointerException when the unitString argument is null
*/
public static Volume of(final double value, final String unitString)
{
return Quantity.of(value, unitString, ZERO);
}
/**
* Calculate the division of Volume and Volume, which results in a Dimensionless scalar.
* @param v scalar
* @return scalar as a division of Volume and Volume
*/
public final Dimensionless divide(final Volume v)
{
return new Dimensionless(this.si() / v.si(), Unitless.BASE);
}
/**
* Calculate the multiplication of Volume and Density, which results in a Mass scalar.
* @param v scalar
* @return scalar as a multiplication of Volume and Density
*/
public final Mass multiply(final Density v)
{
return new Mass(this.si() * v.si(), Mass.Unit.SI);
}
/**
* Calculate the multiplication of Volume and Pressure, which results in a Energy scalar.
* @param v scalar
* @return scalar as a multiplication of Volume and Pressure
*/
public final Energy multiply(final Pressure v)
{
return new Energy(this.si() * v.si(), Energy.Unit.SI);
}
/**
* Calculate the division of Volume and Length, which results in a Area scalar.
* @param v scalar
* @return scalar as a division of Volume and Length
*/
public final Area divide(final Length v)
{
return new Area(this.si() / v.si(), Area.Unit.SI);
}
/**
* Calculate the division of Volume and Area, which results in a Length scalar.
* @param v scalar
* @return scalar as a division of Volume and Area
*/
public final Length divide(final Area v)
{
return new Length(this.si() / v.si(), Length.Unit.SI);
}
/**
* Calculate the multiplication of Volume and LinearObjectDensity, which results in a Area scalar.
* @param v scalar
* @return scalar as a multiplication of Volume and LinearObjectDensity
*/
public final Area multiply(final LinearObjectDensity v)
{
return new Area(this.si() * v.si(), Area.Unit.SI);
}
/**
* Calculate the division of Volume and Duration, which results in a FlowVolume scalar.
* @param v scalar
* @return scalar as a division of Volume and Duration
*/
public final FlowVolume divide(final Duration v)
{
return new FlowVolume(this.si() / v.si(), FlowVolume.Unit.SI);
}
/**
* Calculate the division of Volume and FlowVolume, which results in a Duration scalar.
* @param v scalar
* @return scalar as a division of Volume and FlowVolume
*/
public final Duration divide(final FlowVolume v)
{
return new Duration(this.si() / v.si(), Duration.Unit.SI);
}
@Override
public VolumetricObjectDensity reciprocal()
{
return VolumetricObjectDensity.ofSi(1.0 / this.si());
}
/******************************************************************************************************/
/********************************************** UNIT CLASS ********************************************/
/******************************************************************************************************/
/**
* Volume.Unit encodes the volume unit (length x length x length).
* <p>
* Copyright (c) 2025-2026 Delft University of Technology, Jaffalaan 5, 2628 BX Delft, the Netherlands. All rights reserved.
* See for project information <a href="https://djunits.org" target="_blank">https://djunits.org</a>. The DJUNITS project is
* distributed under a <a href="https://djunits.org/docs/license.html" target="_blank">three-clause BSD-style license</a>.
* @author Alexander Verbraeck
*/
@SuppressWarnings("checkstyle:constantname")
public static class Unit extends AbstractUnit<Volume.Unit, Volume>
{
/** Constant for the cubic inch. */
public static final double CONST_CUBIC_INCH = cubed(Length.Unit.CONST_IN);
/** Constant for the cubic foot. */
public static final double CONST_CUBIC_FOOT = cubed(Length.Unit.CONST_FT);
/** Constant for the cubic yard. */
public static final double CONST_CUBIC_YARD = cubed(Length.Unit.CONST_YD);
/** Constant for the imperial gallon. */
public static final double CONST_GALLON_IMP = 4.54609E-3;
/** Constant for imperial fluid ounce. */
public static final double CONST_OZ_IMP = CONST_GALLON_IMP / 160.0;
/** Constant for US gallon. */
public static final double CONST_GALLON_US = 231.0 * CONST_CUBIC_INCH;
/** Constant for US fluid ounce. */
public static final double CONST_OZ_US = CONST_GALLON_US / 128.0;
/** The dimensions of Volume: m3. */
public static final SIUnit SI_UNIT = SIUnit.of("m3");
/** Cubic meter. */
public static final Volume.Unit m3 = new Volume.Unit("m3", "cubic meter", 1.0, UnitSystem.SI_BASE);
/** The SI or BASE unit. */
public static final Volume.Unit SI = m3;
/** mm^3. */
public static final Volume.Unit mm3 = m3.deriveUnit("mm3", "cubic millimeter", 1.0E-9, UnitSystem.SI_BASE);
/** cm^3. */
public static final Volume.Unit cm3 = m3.deriveUnit("cm3", "cubic centimeter", 1.0E-6, UnitSystem.SI_BASE);
/** dm^3. */
public static final Volume.Unit dm3 = m3.deriveUnit("dm3", "cubic decimeter", 1.0E-3, UnitSystem.SI_BASE);
/** dam^3. */
public static final Volume.Unit dam3 = m3.deriveUnit("dam3", "cubic decameter", 1.0E3, UnitSystem.SI_BASE);
/** hm^3. */
public static final Volume.Unit hm3 = m3.deriveUnit("hm3", "cubic hectometer", 1.0E6, UnitSystem.SI_BASE);
/** km^3. */
public static final Volume.Unit km3 = m3.deriveUnit("km3", "cubic kilometer", 1.0E9, UnitSystem.SI_BASE);
/** in^3. */
public static final Volume.Unit in3 = m3.deriveUnit("in3", "cubic inch", CONST_CUBIC_INCH, UnitSystem.IMPERIAL);
/** ft^3. */
public static final Volume.Unit ft3 = m3.deriveUnit("ft3", "cubic foot", CONST_CUBIC_FOOT, UnitSystem.IMPERIAL);
/** yd^3. */
public static final Volume.Unit yd3 = m3.deriveUnit("yd3", "cubic yard", CONST_CUBIC_YARD, UnitSystem.IMPERIAL);
/** mile^3. */
public static final Volume.Unit mi3 =
m3.deriveUnit("mi3", "cubic mile", cubed(Length.Unit.CONST_MI), UnitSystem.IMPERIAL);
/** Nautical mile^3. */
public static final Volume.Unit NM3 =
m3.deriveUnit("NM3", "cubic Nautical Mile", cubed(Length.Unit.CONST_NM), UnitSystem.OTHER);
/** liter. */
public static final Volume.Unit L = dm3.deriveUnit("L", "liter", 1.0, UnitSystem.SI_ACCEPTED);
/** gallon (US), fluids. */
public static final Volume.Unit gal_US =
m3.deriveUnit("gal(US)", "gallon (US)", CONST_GALLON_US, UnitSystem.US_CUSTOMARY);
/** gallon (imperial). */
public static final Volume.Unit gal_imp =
m3.deriveUnit("gal(imp)", "gallon (imp)", CONST_GALLON_IMP, UnitSystem.IMPERIAL);
/** quart (fluid US) = 1/4 US gallon. */
public static final Volume.Unit qt_US = gal_US.deriveUnit("qt(US)", "quart (US)", 0.25, UnitSystem.US_CUSTOMARY);
/** quart (imperial) = 1/4 imp gallon. */
public static final Volume.Unit qt_imp = gal_imp.deriveUnit("qt(imp)", "quart (imp)", 0.25, UnitSystem.IMPERIAL);
/** pint (fluid US) = 1/2 US quart. */
public static final Volume.Unit pt_US = qt_US.deriveUnit("pt(US)", "pint (US)", 0.5, UnitSystem.US_CUSTOMARY);
/** pint (imperial) = 1/2 imp quart. */
public static final Volume.Unit pt_imp = qt_imp.deriveUnit("pt(imp)", "pint (imp)", 0.5, UnitSystem.IMPERIAL);
/** ounce (fluid US) = 1/16 US pint. */
public static final Volume.Unit fl_oz_US =
m3.deriveUnit("fl.oz(US)", "fluid ounce (US)", CONST_OZ_US, UnitSystem.US_CUSTOMARY);
/** ounce (fluid imperial) = 1/20 imp pint. */
public static final Volume.Unit fl_oz_imp =
m3.deriveUnit("fl.oz(imp)", "fluid ounce (imp)", CONST_OZ_IMP, UnitSystem.IMPERIAL);
/** Cubic lightyear. */
public static final Volume.Unit ly3 =
m3.deriveUnit("ly3", "cubic lightyear", cubed(Length.Unit.CONST_LY), UnitSystem.OTHER);
/** Cubic Parsec. */
public static final Volume.Unit pc3 =
m3.deriveUnit("pc3", "cubic Parsec", cubed(Length.Unit.CONST_PC), UnitSystem.OTHER);
/**
* Create a new Volume unit.
* @param id the id or main abbreviation of the unit
* @param name the full name of the unit
* @param scaleFactorToBaseUnit the scale factor of the unit to convert it TO the base (SI) unit
* @param unitSystem the unit system such as SI or IMPERIAL
*/
public Unit(final String id, final String name, final double scaleFactorToBaseUnit, final UnitSystem unitSystem)
{
super(id, name, new LinearScale(scaleFactorToBaseUnit), unitSystem);
}
/**
* Return a derived unit for this unit, with textual abbreviation(s) and a display abbreviation.
* @param textualAbbreviation the textual abbreviation of the unit, which doubles as the id
* @param displayAbbreviation the display abbreviation of the unit
* @param name the full name of the unit
* @param scale the scale to use to convert between this unit and the standard (e.g., SI, BASE) unit
* @param unitSystem unit system, e.g. SI or Imperial
*/
public Unit(final String textualAbbreviation, final String displayAbbreviation, final String name, final Scale scale,
final UnitSystem unitSystem)
{
super(textualAbbreviation, displayAbbreviation, name, scale, unitSystem);
}
@Override
public SIUnit siUnit()
{
return SI_UNIT;
}
@Override
public Unit getBaseUnit()
{
return SI;
}
@Override
public Volume ofSi(final double si)
{
return Volume.ofSi(si);
}
@Override
public Unit deriveUnit(final String textualAbbreviation, final String displayAbbreviation, final String name,
final double scaleFactor, final UnitSystem unitSystem)
{
if (getScale() instanceof LinearScale ls)
{
return new Volume.Unit(textualAbbreviation, displayAbbreviation, name,
new LinearScale(ls.getScaleFactorToBaseUnit() * scaleFactor), unitSystem);
}
throw new UnitRuntimeException("Only possible to derive a unit from a unit with a linear scale");
}
/**
* Return the cubed value of the argument.
* @param x the value to cube
* @return x^3
*/
private static double cubed(final double x)
{
return x * x * x;
}
}
}