PressureUnit enum

Represents units of pressure.

This enum implements the LinearUnit interface to provide conversion capabilities and a display symbol for each pressure unit. All conversion factors are pre-calculated in the constructor relative to Pascal (Pa).

Inheritance

Object
Enum
PressureUnit

Implemented types

LinearUnit<PressureUnit>

Available extensions

EnumName

Values

pascal → const PressureUnit: Pascal (Pa), the SI derived unit of pressure.

const PressureUnit(1, 'Pa')
micropascal → const PressureUnit: Micropascal (µPa), the international standard reference pressure for acoustics.

const PressureUnit(PressureFactors.pascalsPerMicropascal, 'µPa')
atmosphere → const PressureUnit: Atmosphere (atm), standard atmosphere.

const PressureUnit(PressureFactors.pascalsPerAtmosphere, 'atm')
bar → const PressureUnit: Bar (bar).

const PressureUnit(PressureFactors.pascalsPerBar, 'bar')
psi → const PressureUnit: Pound per square inch (psi).

const PressureUnit(PressureFactors.pascalsPerPsi, 'psi')
torr → const PressureUnit: Torr (Torr), approximately 1 mmHg.

const PressureUnit(PressureFactors.pascalsPerTorr, 'Torr')
millimeterOfMercury → const PressureUnit: Millimeter of mercury (mmHg) at 0°C.

const PressureUnit(PressureFactors.pascalsPerMillimeterOfMercury, 'mmHg')
inchOfMercury → const PressureUnit: Inch of mercury (inHg) at 0°C.

const PressureUnit(PressureFactors.pascalsPerInchOfMercury, 'inHg')
gigapascal → const PressureUnit: Gigapascal (GPa). Required for material science (Young's modulus, tensile strength).

const PressureUnit(PressureFactors.pascalsPerGigapascal, 'GPa')
megapascal → const PressureUnit: Megapascal (MPa).

const PressureUnit(PressureFactors.pascalsPerMegapascal, 'MPa')
kilopascal → const PressureUnit: Kilopascal (kPa).

const PressureUnit(PressureFactors.pascalsPerKilopascal, 'kPa')
hectopascal → const PressureUnit: Hectopascal (hPa).

const PressureUnit(PressureFactors.pascalsPerHectopascal, 'hPa')
millibar → const PressureUnit: Millibar (mbar), equivalent to hectopascal.

const PressureUnit(PressureFactors.pascalsPerMillibar, 'mbar')
centimeterOfWater → const PressureUnit: Centimeter of water (cmH₂O) at 4°C.

const PressureUnit(PressureFactors.conventionalPascalsPerCentimeterOfWater4C, 'cmH₂O')
inchOfWater → const PressureUnit: Inch of water (inH₂O) at 4°C.

const PressureUnit(PressureFactors.conventionalPascalsPerInchOfWater4C, 'inH₂O')

Properties

hashCode → int: The hash code for this object.
no setterinherited
index → int: A numeric identifier for the enumerated value.
no setterinherited
isMetric → bool: Returns false for atmosphere, the imperial psi, inchOfMercury, and inchOfWater, the non-decimal torr, millimeterOfMercury and centimeterOfWater (defined via mercury/water column height, not SI-derived), and bar/millibar (a separately named non-SI unit, same category as the litre); true for all decimal multiples/submultiples of the pascal.
no setteroverride
isSI → bool: Returns true only for pascal, the SI derived unit of pressure.
no setteroverride
name → String: Available on Enum, provided by the EnumName extension
The name of the enum value.
no setter
runtimeType → Type: A representation of the runtime type of the object.
no setterinherited
symbol → String: The human-readable symbol for this pressure unit (e.g., "Pa", "psi").
final

Methods

noSuchMethod(Invocation invocation) → dynamic: Invoked when a nonexistent method or property is accessed.
inherited
toString() → String: A string representation of this object.
inherited

Operators

operator ==(Object other) → bool: The equality operator.
inherited

Constants

values → const List<PressureUnit>: A constant List of the values in this enum, in order of their declaration.