.. testsetup::

    from mhi.pscad.unit import UnitSystem, Value, ComplexValue
    UnitSystem.parse("""
        <unit_system>
            <Domain name="Time">
                <Unit name="Second" symbol="s" base="s" alias="" inverse="Hz" multiplier="1.0" />
                <Unit name="Hour" symbol="hr" base="s" alias="" inverse="Hz" multiplier="0.00027777777777778" offset="0.0" />
                <Unit name="Day" symbol="day" base="s" alias="" inverse="Hz" multiplier="0.000011574074074074" offset="0.0" />
            </Domain>
            <Domain name="Space">
                <Unit name="Meter" symbol="m" base="m" alias="" inverse="" multiplier="1.0" />
                <Unit name="Inch" symbol="in" base="m" alias="" inverse="" multiplier="39.3700787401575" offset="0.0" />
                <Unit name="Feet" symbol="ft" base="m" alias="" inverse="" multiplier="3.28083989501312" offset="0.0" />
                <Unit name="Yard" symbol="yd" base="m" alias="" inverse="" multiplier="1.09361329833771" offset="0.0" />
                <Unit name="Mile" symbol="mi" base="m" alias="" inverse="" multiplier="0.000621371192237334" offset="0.0" />
            </Domain>
            <Domain name="Energy">
                <Unit name="Voltage" symbol="V" base="V" alias="" inverse="" multiplier="1.0" offset="0.0" />
            </Domain>
        </unit_system>
    """)



#####
Unit
#####

.. py:currentmodule:: mhi.pscad.unit

This module contains utilities for working with dimensioned real and complex
numbers, as in numbers with units. By default, PSCAD Automation Library obtains
the unit system from a running PSCAD application, hence PSCAD must be running
when using the classes provided here for unit conversions. Alternatively, the
user can provide their own unit system in an XML file using :meth:`UnitSystem.parse`.


Unit System
===========

.. autoclass:: UnitSystem
    :members: parse, convert

Value
=====

.. autoclass:: Value
    :members:

Complex Value
=============

.. autoclass:: ComplexValue
    :members: