sasdata.quantities.units module

This file is autogenerated!

Do not edit by hand, instead edit the files that build it (_build_tables.py, _units_base.py)

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exception sasdata.quantities.units.DimensionError

Bases: Exception

class sasdata.quantities.units.Dimensions(length: int = 0, time: int = 0, mass: int = 0, current: int = 0, temperature: int = 0, moles_hint: int = 0, angle_hint: int = 0)

Bases: object

Note that some SI Base units are not useful from the perspecive of the sasview project, and make things behave badly. In particular: moles and angular measures are dimensionless, and candelas are really a weighted measure of power.

We do however track angle and amount, because its really useful for formatting units

property is_dimensionless

Is this dimension dimensionless (ignores moles_hint and angle_hint)

si_repr()

class sasdata.quantities.units.GreedyAbsDimensionUnitFormatProcessor

Bases: UnitFormatProcessor

class sasdata.quantities.units.NamedUnit(si_scaling_factor: float, dimensions: Dimensions, name: str | None = None, ascii_symbol: str | None = None, latex_symbol: str | None = None, symbol: str | None = None)

Bases: Unit

Units, but they have a name, and a symbol

Si_scaling_factor:

Number of these units per SI equivalent

Parameters:

• dimensions – Dimensions object representing the dimensionality of these units

• name – Name of unit - string without unicode

• ascii_symbol – Symbol for unit without unicode

• symbol – Unicode symbol

startswith(prefix: str) → bool

Check if any representation of the unit begins with the prefix string

class sasdata.quantities.units.ProcessedUnitToken(base_string: str, exponent_string: str, latex_exponent_string: str, exponent: int)

Bases: object

Mid processing representation of formatted units

base_string: str

exponent: int

exponent_string: str

latex_exponent_string: str

class sasdata.quantities.units.RequiredUnitFormatProcessor(unit: Unit, power: int = 1)

Bases: UnitFormatProcessor

This unit is required to exist in the formatting

apply(scale, dimensions) → tuple[float, Dimensions, ProcessedUnitToken]

This will be called to deal with each processing stage

class sasdata.quantities.units.Unit(si_scaling_factor: float, dimensions: Dimensions)

Bases: object

equivalent(other: Unit)

static parse(unit_string: str) → Unit

si_equivalent()

Get the SI unit corresponding to this unit

class sasdata.quantities.units.UnitFormatProcessor

Bases: object

Represents a step in the unit processing pipeline

apply(scale, dimensions) → tuple[ProcessedUnitToken, float, Dimensions]

This will be called to deal with each processing stage

class sasdata.quantities.units.UnitGroup(name: str, units: list[NamedUnit])

Bases: object

A group of units that all have the same dimensionality