.. note:: :class: sphx-glr-download-link-note Click :ref:`here ` to download the full example code .. rst-class:: sphx-glr-example-title .. _sphx_glr_gallery_pyplots_auto_subplots_adjust.py: ==================== Auto Subplots Adjust ==================== Automatically adjust subplot parameters. This example shows a way to determine a subplot parameter from the extent of the ticklabels using a callback on the :doc:`draw_event`. Note that a similar result would be achieved using `~.Figure.tight_layout` or `~.Figure.constrained_layout`; this example shows how one could customize the subplot parameter adjustment. .. code-block:: default import matplotlib.pyplot as plt import matplotlib.transforms as mtransforms fig, ax = plt.subplots() ax.plot(range(10)) ax.set_yticks((2,5,7)) labels = ax.set_yticklabels(('really, really, really', 'long', 'labels')) def on_draw(event): bboxes = [] for label in labels: bbox = label.get_window_extent() # the figure transform goes from relative coords->pixels and we # want the inverse of that bboxi = bbox.inverse_transformed(fig.transFigure) bboxes.append(bboxi) # this is the bbox that bounds all the bboxes, again in relative # figure coords bbox = mtransforms.Bbox.union(bboxes) if fig.subplotpars.left < bbox.width: # we need to move it over fig.subplots_adjust(left=1.1*bbox.width) # pad a little fig.canvas.draw() return False fig.canvas.mpl_connect('draw_event', on_draw) plt.show() .. image:: /gallery/pyplots/images/sphx_glr_auto_subplots_adjust_001.png :class: sphx-glr-single-img ------------ References """""""""" The use of the following functions, methods, classes and modules is shown in this example: .. code-block:: default import matplotlib matplotlib.artist.Artist.get_window_extent matplotlib.transforms.Bbox matplotlib.transforms.Bbox.inverse_transformed matplotlib.transforms.Bbox.union matplotlib.figure.Figure.subplots_adjust matplotlib.figure.SubplotParams matplotlib.backend_bases.FigureCanvasBase.mpl_connect .. _sphx_glr_download_gallery_pyplots_auto_subplots_adjust.py: .. only :: html .. container:: sphx-glr-footer :class: sphx-glr-footer-example .. container:: sphx-glr-download :download:`Download Python source code: auto_subplots_adjust.py ` .. container:: sphx-glr-download :download:`Download Jupyter notebook: auto_subplots_adjust.ipynb ` .. only:: html .. rst-class:: sphx-glr-signature Keywords: matplotlib code example, codex, python plot, pyplot `Gallery generated by Sphinx-Gallery `_