Uses of Package
org.djunits.quantity
Packages that use org.djunits.quantity
Package
Description
The quantity package stores information about quantities with their units.
Definition classes for quantities.
Base classes to encode and store units.
The org.djunits.si package contains classes that can work with and manipulate SI prefixes and SI dimensions.
General utilities for djunits.
1-element vector and matrix classes with a unit.
2-element vector and matrix classes with a unit.
3-element vector and matrix classes with a unit.
Definition classes for vectors and matrices.
Copyright (c) 2025-2025 Delft University of Technology, Jaffalaan 5, 2628 BX Delft, the Netherlands.
Copyright (c) 2025-2025 Delft University of Technology, Jaffalaan 5, 2628 BX Delft, the Netherlands.
Square vector and matrix implementations with dimension N.
Rectangular matrix implementations with dimension NxM.
Two-dimensonal tables with quantities.
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Classes in org.djunits.quantity used by org.djunits.quantityClassDescriptionAbsorbed dose is the energy deposited by ionizing radiation per unit mass, measured in grays (Gy).AbsorbedDose.Unit encodes the units of absorbed dose (of ionizing radiation).Acceleration is the rate of change of velocity over time, measured in meters per second squared (m/s2).Acceleration.Unit encodes the units of acceleration.Amount of substance is the quantity representing the number of entities, measured in moles (mol).AmountOfSubstance.Unit encodes the units of amount of substance (base unit is mol).Angle is the measure of rotation between two intersecting lines, expressed in radians (rad) or degrees.Angle.Unit encodes the units of angle (radians, degrees).Angular acceleration is the rate of change of angular velocity over time, measured in radians per second squared (rad/s2).AngularAcceleration.Unit encodes the units of angle (radians or degrees per second squared).Angular velocity is the rate of rotation around an axis, measured in radians per second (rad/s).AngularVelocity.Unit encodes the units of angle (radians, degrees).Area is a measure of a two-dimensional surface, expressed in square meters (m2).Area.Unit encodes the area unit (length x length).Areal object density counts the number of objects per unit of area, measured in number per square meter (/m2).ArealObjectDensity.Unit encodes the unit for number of objects per unit of area.Catalytic Activty is the rate of catalytic reaction per unit amount of catalyst, and is expressed in katal (kat), which is mol/s.CatalyticActivity.Unit encodes the units of the speed of a chamical reaction, and is expressed in mol/s.Density is mass per unit volume of a substance, measured in kilograms per cubic meter (kg/m3).Density.Unit encodes the units of density based on mass per volume.Dimensionless quantity.Direction is the absolute equivalent of Angle, and can, e.g., represent an angle relative to a defined "zero" angle such as NORTH or EAST.The reference class to define a reference point for the direction.Duration is the interval of time between two events, measured in seconds (s).Duration.Unit encodes the units of relative time.ElectricalCapacitance denotes the ability of an object to store electric charge, and is expressed in farad.ElectricalCapacitance.Unit encodes the units of capacitance (in farad).Electrical conductance measures the ease with which an electric current passes, and is expressed in siemens.ElectricalConductance.Unit encodes the units of electrical conductance, and is expressed in Siemens.Inductance is the tendency of an electrical conductor to oppose a change in the electric current flowing through it.ElectricalInductance.Unit encodes the units of electromagnetic inductance.Electrical resistence measures the opposition to the flow of an electric current, and is expressed in ohm.ElectricalResistance.Unit encodes the opposition to the flow of electric current.Electric charge denotes the electrostatic attraction or repulsion in the presence of other matter with charge, and is expressed in coulomb.ElectricCharge.Unit is a unit of electric charge and is expressed in Coulomb.ElectricCurrent is the net rate of flow of electric charge through a surface.ElectricCurrent.Unit encodes the units of electric current (A).ElectricPotential is the difference in electric potential energy per unit of electric charge between two points in a static electric field.ElectricPotential.Unit encodes the units of electric potential (difference)Energy is a physical quantity representing the capacity to do work, measured in joules (J).Energy.Unit encodes the units of energy.Equivalent dose is a measure of radiation exposure accounting for biological effect, expressed in sieverts (Sv).EquivalentDose.Unit encodes the unit of radiation exposure.Flow mass: The rate of mass passing through a surface per unit time, measured in kilograms per second (kg/s).FlowMass.Unit encodes the units of mass flow.Flow volume is the rate of volume passing through a surface per unit time, measured in cubic meters per second (m3/s).FlowVolume.Unit encodes the units of volume flow.Force is an interaction that changes the motion of an object, measured in newtons (N).Force.Unit encodes the units of force.Frequency encodes the number of events per unit of duration.Frequency.Unit encodes the units of frequency.Illuminance is the luminous flux incident on a surface per unit area, measured in lux (lx).Illuminance.Unit encodes the units of illuminance.Length is the measure of distance between two points, expressed in meters (m).Length.Unit encodes the length unit.Linear density is mass per unit length of an object, measured in kilograms per meter (kg/m).LinearDensity.Unit encodes unit for mass per unit length.Linear object density counts the number of objects per unit of length, measured in number per meter (/m).LinearObjectDensity.Unit encodes the unit for the number of objects per unit of length.Luminous flux is the total perceived power of light emitted by a source, measured in lumens (lm).LuminousFlux.Unit encodes the units of total perceived power of light emitted by a source.Luminous intensity is the luminous flux emitted per unit solid angle, measured in candelas (cd).LuminousIntensity.Unit encodes the units of luminous flux emitted per unit solid angle.Magnetic flux is the total magnetic field passing through a given area, measured in webers (Wb).MagneticFlux.Unit encodes the units of total magnetic field passing through a given area.Magnetic flux density is the strength of the magnetic field per unit area, measured in teslas (T).MagneticFluxDensity.Unit encodes the units of strength of the magnetic field per unit area.Mass is the amount of matter in an object, measured in kilograms (kg).Mass.Unit encodes the unit of the amount of matter in an object.Momentum is the product of an object's mass and velocity, measured in kilogram meters per second (kgm/s).Momentum.Unit encodes a unit for the product of an object's mass and velocity.Position is the absolute equivalent of Length, and can, e.g., represent an absolute offset relative to a defined origin.The reference class to define a reference point for the position.Power is the rate of energy transfer or work done per unit time, measured in watts (W).Power.Unit encodes the units for the rate of energy transfer or work done per unit time.Pressure is the force exerted per unit area, measured in pascals (Pa).Pressure.Unit encodes the units of force exerted per unit area.Radioactivity is the rate of nuclear decay events, measured in becquerels (Bq).RadioActivity.Unit encodes the units of radioactivity.SI quantity, with arbitrary SI unit.Solid angle is the two-dimensional angle in three-dimensional space, measured in steradians (sr).SolidAngle.Unit encodes the units of solid angles.Speed is the rate of change of position over time.Speed.Unit encodes the units of the rate of change of a position over time.Temperature is the absolute equivalent of Temperature, and represents a true temperature rather than a temperature difference.The reference class to define a reference point for the absolute temperature.Temperature.Unit encodes the units of relative and absolute temperature.TemperatureDifference is a measure of (difference in) thermal state or average kinetic energy of particles, measured in kelvins (K).Time is the absolute equivalent of Duration, and can, e.g., represent a calendar date with a zero.The reference class to define a reference point for the time.Torque is a measure of rotational force about an axis, measured in newton meters (Nm).Torque.Unit encodes the units of rotational force about an axis, measured in newton meters (Nm).Volume is the amount of three-dimensional space occupied by matter, measured in cubic meters (m3).Volume.Unit encodes the volume unit (length x length x length).Volumetric object density counts the number of objects per unit of volume, measured in number per cubic meter (/m3).VolumetricObjectDensity.Unit encodes the unit for number of objects per unit of volume.
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Classes in org.djunits.quantity used by org.djunits.quantity.def
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Classes in org.djunits.quantity used by org.djunits.unit
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Classes in org.djunits.quantity used by org.djunits.unit.si
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Classes in org.djunits.quantity used by org.djunits.utilClassDescriptionDimensionless quantity.Electric charge denotes the electrostatic attraction or repulsion in the presence of other matter with charge, and is expressed in coulomb.Frequency encodes the number of events per unit of duration.Mass is the amount of matter in an object, measured in kilograms (kg).SI quantity, with arbitrary SI unit.Speed is the rate of change of position over time.
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Classes in org.djunits.quantity used by org.djunits.vecmat.d1
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Classes in org.djunits.quantity used by org.djunits.vecmat.d2
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Classes in org.djunits.quantity used by org.djunits.vecmat.d3
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Classes in org.djunits.quantity used by org.djunits.vecmat.defClassDescriptionDimensionless quantity.SI quantity, with arbitrary SI unit.
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Classes in org.djunits.quantity used by org.djunits.vecmat.dn
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Classes in org.djunits.quantity used by org.djunits.vecmat.dnxm
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Classes in org.djunits.quantity used by org.djunits.vecmat.table