Ejemplo n.º 1
0
def eqdataplot(eq, datasets, ax=None, plot_kwargs=None):
    """
    Plot datapoints corresponding to the components and phases in the eq Dataset.
    A convenience function for dataplot.

    Parameters
    ----------
    eq : xarray.Dataset
        Result of equilibrium calculation.
    datasets : PickleableTinyDB
        Database of phase equilibria datasets
    ax : matplotlib.Axes
        Default axes used if not specified.
    plot_kwargs : dict
        Keyword arguments to pass to dataplot

    Returns
    -------
    A plot of phase equilibria points as a figure

    Examples
    --------

    >>> from pycalphad import equilibrium, Database, variables as v
    >>> from pycalphad.plot.eqplot import eqplot
    >>> from espei.datasets import load_datasets, recursive_glob
    >>> datasets = load_datasets(recursive_glob('.', '*.json'))
    >>> dbf = Database('my_databases.tdb')
    >>> my_phases = list(dbf.phases.keys())
    >>> eq = equilibrium(dbf, ['CU', 'MG', 'VA'], my_phases, {v.P: 101325, v.T: (500, 1000, 10), v.X('MG'): (0, 1, 0.01)})
    >>> ax = eqplot(eq)
    >>> ax = eqdataplot(eq, datasets, ax=ax)

    """
    # TODO: support reference legend
    conds = OrderedDict([
        (_map_coord_to_variable(key), unpack_condition(np.asarray(value)))
        for key, value in sorted(eq.coords.items(), key=str)
        if (key == 'T') or (key == 'P') or (key.startswith('X_'))
    ])

    phases = list(
        map(
            str,
            sorted(set(np.array(eq.Phase.values.ravel(), dtype='U')) - {''},
                   key=str)))
    comps = list(
        map(
            str,
            sorted(np.array(eq.coords['component'].values, dtype='U'),
                   key=str)))

    ax = dataplot(comps,
                  phases,
                  conds,
                  datasets,
                  ax=ax,
                  plot_kwargs=plot_kwargs)

    return ax
Ejemplo n.º 2
0
def eqdataplot(eq, datasets, ax=None, plot_kwargs=None):
    """
    Plot datapoints corresponding to the components and phases in the eq Dataset.
    A convenience function for dataplot.

    Parameters
    ----------
    eq : xarray.Dataset
        Result of equilibrium calculation.
    datasets : PickleableTinyDB
        Database of phase equilibria datasets
    ax : matplotlib.Axes
        Default axes used if not specified.
    plot_kwargs : dict
        Keyword arguments to pass to dataplot

    Returns
    -------
    A plot of phase equilibria points as a figure

    Examples
    --------

    >>> from pycalphad import equilibrium, Database, variables as v  # doctest: +SKIP
    >>> from pycalphad.plot.eqplot import eqplot  # doctest: +SKIP
    >>> from espei.datasets import load_datasets, recursive_glob  # doctest: +SKIP
    >>> datasets = load_datasets(recursive_glob('.', '*.json'))  # doctest: +SKIP
    >>> dbf = Database('my_databases.tdb')  # doctest: +SKIP
    >>> my_phases = list(dbf.phases.keys())  # doctest: +SKIP
    >>> eq = equilibrium(dbf, ['CU', 'MG', 'VA'], my_phases, {v.P: 101325, v.T: (500, 1000, 10), v.X('MG'): (0, 1, 0.01)})  # doctest: +SKIP
    >>> ax = eqplot(eq)  # doctest: +SKIP
    >>> ax = eqdataplot(eq, datasets, ax=ax)  # doctest: +SKIP

    """
    deprecation_msg = (
        "`espei.plot.eqdataplot` is deprecated and will be removed in ESPEI 0.9. "
        "Users depending on plotting from an `pycalphad.equilibrium` result should use "
        "`pycalphad.plot.eqplot.eqplot` along with `espei.plot.dataplot` directly. "
        "Note that pycalphad's mapping can offer signficant reductions in calculation "
        "time compared to using `equilibrium` followed by `eqplot`."
    )
    warnings.warn(deprecation_msg, category=FutureWarning)
    # TODO: support reference legend
    conds = OrderedDict([(_map_coord_to_variable(key), unpack_condition(np.asarray(value)))
                         for key, value in sorted(eq.coords.items(), key=str)
                         if (key == 'T') or (key == 'P') or (key.startswith('X_'))])

    phases = list(map(str, sorted(set(np.array(eq.Phase.values.ravel(), dtype='U')) - {''}, key=str)))
    comps = list(map(str, sorted(np.array(eq.coords['component'].values, dtype='U'), key=str)))

    ax = dataplot(comps, phases, conds, datasets, ax=ax, plot_kwargs=plot_kwargs)

    return ax