Unit class abstract
A determinate Quantity (as of length, time, heat, or value) adopted as a standard of measurement.
It is helpful to think of instances of this class as recording the history by which they are created. Thus, for example, the string "g/kg" (which is a dimensionless unit) would result from invoking the method toString() on a unit that was created by dividing a gram unit by a kilogram unit. Yet, "kg" divided by "kg" returns one and not "kg/kg" due to automatic unit factorization.
This class supports the multiplication of offsets units. The result is usually a unit not convertible to its {@link #getStandardUnit standard unit}. Such units may appear in derivative quantities. For example °C/m is an unit of gradient, which is common in atmospheric and oceanographic research.
Units raised at rational powers are also supported. For example the cubic root of "liter" is a unit compatible with meter.
- Implementers
Constructors
- Unit()
-
const
- Unit.inverseOf(Unit a)
-
factory
- Unit.productOf(Unit a, Unit b)
-
factory
- Unit.quotient(Unit a, Unit b)
-
factory
Properties
- dimension → Dimension
-
The dimension of this unit.
no setter
- hashCode → int
-
The hash code for this object.
no setterinherited
- isStandardUnit → bool
-
Indicates if this unit is a standard unit.
no setter
- quantity → Quantity
-
no setter
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
- standardUnit → Unit
-
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The BaseUnit base unit, AlternateUnit alternate unit or product of
base units and alternate units this unit is derived from.
no setter
Methods
-
divide(
Unit that) → Unit - The quotient of this unit with the one specified.
-
getConverterTo(
Unit that) → UnitConverter - Returns a converter of numeric values from this unit to another unit.
-
inverse(
) → Unit - The inverse of this unit.
-
isCompatible(
Unit that) → bool - Indicates if this unit is compatible with the unit specified.
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
plus(
num offset) → Unit - The result of adding an offset to this unit.
-
pow(
RationalNumber pow) → Unit -
scaled(
num factor, [num divisor = 1]) → Unit - The result of multiplying this unit by a factor.
-
times(
Unit that) → Unit - The product of this unit with the one specified.
-
toStandardUnit(
) → UnitConverter - Returns the converter from this unit to its standard unit.
-
toString(
) → String -
A string representation of this object.
override
-
transform(
UnitConverter operation) → Unit - Returns the unit derived from this unit using the specified converter.
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited