diff --git a/lib/matplotlib/figure.py b/lib/matplotlib/figure.py index 6c18ba1a643e..db91b6978675 100644 --- a/lib/matplotlib/figure.py +++ b/lib/matplotlib/figure.py @@ -1171,6 +1171,65 @@ def text(self, x, y, s, fontdict=None, **kwargs): self.stale = True return text + def set_subplotparams(self, subplotparams={}): + """ + Set the subplot layout parameters. + Accepts either a `.SubplotParams` object, from which the relevant + parameters are copied, or a dictionary of subplot layout parameters. + If a dictionary is provided, this function is a convenience wrapper for + `matplotlib.figure.Figure.subplots_adjust` + + Parameters + ---------- + subplotparams : `~matplotlib.figure.SubplotParams` or dict with keys \ + "left", "bottom", "right", 'top", "wspace", "hspace"] , optional + SubplotParams object to copy new subplot parameters from, or a dict + of SubplotParams constructor arguments. + By default, an empty dictionary is passed, which maintains the + current state of the figure's `.SubplotParams` + + See Also + -------- + matplotlib.figure.Figure.subplots_adjust + matplotlib.figure.Figure.get_subplotparams + """ + subplotparams_args = ["left", "bottom", "right", + "top", "wspace", "hspace"] + kwargs = {} + if isinstance(subplotparams, SubplotParams): + for key in subplotparams_args: + kwargs[key] = getattr(subplotparams, key) + elif isinstance(subplotparams, dict): + for key in subplotparams.keys(): + if key in subplotparams_args: + kwargs[key] = subplotparams[key] + else: + _api.warn_external( + f"'{key}' is not a valid key for set_subplotparams;" + " this key was ignored.") + else: + raise TypeError( + "subplotparams must be a dictionary of keyword-argument pairs" + " or an instance of SubplotParams()") + if kwargs == {}: + self.set_subplotparams(self.get_subplotparams()) + self.subplots_adjust(**kwargs) + + def get_subplotparams(self): + """ + Return the `.SubplotParams` object associated with the Figure. + + Returns + ------- + `.SubplotParams` + + See Also + -------- + matplotlib.figure.Figure.subplots_adjust + matplotlib.figure.Figure.get_subplotparams + """ + return self.subplotpars + @_docstring.dedent_interpd def colorbar( self, mappable, cax=None, ax=None, use_gridspec=True, **kwargs): @@ -2277,6 +2336,10 @@ def draw(self, renderer): @_docstring.interpd +@_api.define_aliases({ + "size_inches": ["figsize"], + "layout_engine": ["layout"] +}) class Figure(FigureBase): """ The top level container for all the plot elements. diff --git a/lib/matplotlib/tests/test_figure.py b/lib/matplotlib/tests/test_figure.py index 86d7fb8591af..eb70dfffeb61 100644 --- a/lib/matplotlib/tests/test_figure.py +++ b/lib/matplotlib/tests/test_figure.py @@ -1445,3 +1445,42 @@ def test_gridspec_no_mutate_input(): plt.subplots(1, 2, width_ratios=[1, 2], gridspec_kw=gs) assert gs == gs_orig plt.subplot_mosaic('AB', width_ratios=[1, 2], gridspec_kw=gs) + + +def test_get_subplot_params(): + fig = plt.figure() + subplotparams_keys = ["left", "bottom", "right", "top", "wspace", "hspace"] + subplotparams = fig.get_subplotparams() + test_dict = {} + for key in subplotparams_keys: + attr = getattr(subplotparams, key) + assert attr == mpl.rcParams[f"figure.subplot.{key}"] + test_dict[key] = attr * 2 + + fig.set_subplotparams(test_dict) + for key, value in test_dict.items(): + assert getattr(fig.get_subplotparams(), key) == value + + test_dict['foo'] = 'bar' + with pytest.warns(UserWarning, + match="'foo' is not a valid key for set_subplotparams;" + " this key was ignored"): + fig.set_subplotparams(test_dict) + + with pytest.raises(TypeError, + match="subplotparams must be a dictionary of " + "keyword-argument pairs or " + "an instance of SubplotParams()"): + fig.set_subplotparams(['foo']) + + assert fig.subplotpars == fig.get_subplotparams() + + +def test_fig_get_set(): + varnames = filter(lambda var: var not in ['self', 'kwargs', 'args'], + Figure.__init__.__code__.co_varnames) + fig = plt.figure() + for var in varnames: + # if getattr fails then the getter and setter does not exist + getfunc = getattr(fig, f"get_{var}") + setfunc = getattr(fig, f"set_{var}")
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