matplotlib · timhoffm · Feb 18, 2023 · Feb 18, 2023
diff --git a/doc/users/faq/howto_faq.rst b/doc/users/faq/howto_faq.rst
@@ -30,7 +30,7 @@ supplied.
     import matplotlib.pyplot as plt
     import numpy as np
 
-    fig, ax = plt.subplots(1, 2, constrained_layout=True, figsize=(6, 2))
+    fig, ax = plt.subplots(1, 2, layout='constrained', figsize=(6, 2))
 
     ax[0].set_title('Ticks seem out of order / misplaced')
     x = ['5', '20', '1', '9']  # strings

diff --git a/tutorials/colors/colormap-manipulation.py b/tutorials/colors/colormap-manipulation.py
@@ -99,7 +99,7 @@ def plot_examples(colormaps):
     data = np.random.randn(30, 30)
     n = len(colormaps)
     fig, axs = plt.subplots(1, n, figsize=(n * 2 + 2, 3),
-                            constrained_layout=True, squeeze=False)
+                            layout='constrained', squeeze=False)
     for [ax, cmap] in zip(axs.flat, colormaps):
         psm = ax.pcolormesh(data, cmap=cmap, rasterized=True, vmin=-4, vmax=4)
         fig.colorbar(psm, ax=ax)
@@ -197,7 +197,7 @@ def plot_examples(colormaps):
 def plot_linearmap(cdict):
     newcmp = LinearSegmentedColormap('testCmap', segmentdata=cdict, N=256)
     rgba = newcmp(np.linspace(0, 1, 256))
-    fig, ax = plt.subplots(figsize=(4, 3), constrained_layout=True)
+    fig, ax = plt.subplots(figsize=(4, 3), layout='constrained')
     col = ['r', 'g', 'b']
     for xx in [0.25, 0.5, 0.75]:
         ax.axvline(xx, color='0.7', linestyle='--')

diff --git a/tutorials/colors/colormapnorms.py b/tutorials/colors/colormapnorms.py
@@ -168,7 +168,7 @@
 X, Y = np.mgrid[0:3:complex(0, N), 0:2:complex(0, N)]
 Z1 = (1 + np.sin(Y * 10.)) * X**2
 
-fig, ax = plt.subplots(2, 1, constrained_layout=True)
+fig, ax = plt.subplots(2, 1, layout='constrained')
 
 pcm = ax[0].pcolormesh(X, Y, Z1, norm=colors.PowerNorm(gamma=0.5),
                        cmap='PuBu_r', shading='auto')
@@ -207,7 +207,7 @@
 Z2 = np.exp(-(X - 1)**2 - (Y - 1)**2)
 Z = ((Z1 - Z2) * 2)[:-1, :-1]
 
-fig, ax = plt.subplots(2, 2, figsize=(8, 6), constrained_layout=True)
+fig, ax = plt.subplots(2, 2, figsize=(8, 6), layout='constrained')
 ax = ax.flatten()
 
 # Default norm:

diff --git a/tutorials/intermediate/arranging_axes.py b/tutorials/intermediate/arranging_axes.py
@@ -329,7 +329,7 @@ def annotate_axes(ax, text, fontsize=18):
 #
 # When a  *GridSpec* is explicitly used, you can adjust the layout
 # parameters of subplots that are created from the  *GridSpec*.  Note this
-# option is not compatible with ``constrained_layout`` or
+# option is not compatible with *constrained layout* or
 # `.Figure.tight_layout` which both ignore *left* and *right* and adjust
 # subplot sizes to fill the figure.  Usually such manual placement
 # requires iterations to make the Axes tick labels not overlap the Axes.
@@ -389,7 +389,7 @@ def annotate_axes(ax, text, fontsize=18):
 def squiggle_xy(a, b, c, d, i=np.arange(0.0, 2*np.pi, 0.05)):
     return np.sin(i*a)*np.cos(i*b), np.sin(i*c)*np.cos(i*d)
 
-fig = plt.figure(figsize=(8, 8), constrained_layout=False)
+fig = plt.figure(figsize=(8, 8), layout='constrained')
 outer_grid = fig.add_gridspec(4, 4, wspace=0, hspace=0)
 
 for a in range(4):

diff --git a/tutorials/intermediate/constrainedlayout_guide.py b/tutorials/intermediate/constrainedlayout_guide.py
@@ -126,7 +126,7 @@ def example_plot(ax, fontsize=12, hide_labels=False):
 
 # %%
 # If you specify a list of Axes (or other iterable container) to the
-# ``ax`` argument of ``colorbar``, constrained_layout will take space from
+# ``ax`` argument of ``colorbar``, *constrained layout* will take space from
 # the specified Axes.
 
 fig, axs = plt.subplots(2, 2, figsize=(4, 4), layout="constrained")
@@ -162,8 +162,8 @@ def example_plot(ax, fontsize=12, hide_labels=False):
 # =======
 #
 # Legends can be placed outside of their parent axis.
-# Constrained-layout is designed to handle this for :meth:`.Axes.legend`.
-# However, constrained-layout does *not* handle legends being created via
+# *Constrained layout* is designed to handle this for :meth:`.Axes.legend`.
+# However, *constrained layout* does *not* handle legends being created via
 # :meth:`.Figure.legend` (yet).
 
 fig, ax = plt.subplots(layout="constrained")
@@ -186,7 +186,7 @@ def example_plot(ax, fontsize=12, hide_labels=False):
 # with ``fig.savefig('outname.png', bbox_inches='tight')``.  Note,
 # however, that the legend's ``get_in_layout`` status will have to be
 # toggled again to make the saved file work, and we must manually
-# trigger a draw if we want constrained_layout to adjust the size
+# trigger a draw if we want *constrained layout* to adjust the size
 # of the Axes before printing.
 
 fig, axs = plt.subplots(1, 2, figsize=(4, 2), layout="constrained")
@@ -195,7 +195,7 @@ def example_plot(ax, fontsize=12, hide_labels=False):
 axs[1].plot(np.arange(10), label='This is a plot')
 leg = axs[1].legend(loc='center left', bbox_to_anchor=(0.8, 0.5))
 leg.set_in_layout(False)
-# trigger a draw so that constrained_layout is executed once
+# trigger a draw so that constrained layout is executed once
 # before we turn it off when printing....
 fig.canvas.draw()
 # we want the legend included in the bbox_inches='tight' calcs.
@@ -288,7 +288,7 @@ def example_plot(ax, fontsize=12, hide_labels=False):
 for ax in axs.flat:
     example_plot(ax, hide_labels=True)
 # this has no effect because the space set in the gridspec trumps the
-# space set in constrained_layout.
+# space set in *constrained layout*.
 fig.get_layout_engine().set(w_pad=4 / 72, h_pad=4 / 72, hspace=0.0,
                             wspace=0.0)
 
@@ -319,7 +319,7 @@ def example_plot(ax, fontsize=12, hide_labels=False):
 # that can be set, either in a script or in the :file:`matplotlibrc`
 # file. They all have the prefix ``figure.constrained_layout``:
 #
-# - *use*: Whether to use constrained_layout. Default is False
+# - *use*: Whether to use *constrained layout*. Default is False
 # - *w_pad*, *h_pad*:    Padding around Axes objects.
 #   Float representing inches.  Default is 3./72. inches (3 pts)
 # - *wspace*, *hspace*:  Space between subplot groups.
@@ -335,7 +335,7 @@ def example_plot(ax, fontsize=12, hide_labels=False):
 # Use with GridSpec
 # =================
 #
-# constrained_layout is meant to be used
+# *Constrained layout* is meant to be used
 # with :func:`~matplotlib.figure.Figure.subplots`,
 # :func:`~matplotlib.figure.Figure.subplot_mosaic`, or
 # :func:`~matplotlib.gridspec.GridSpec` with
@@ -454,7 +454,7 @@ def example_plot(ax, fontsize=12, hide_labels=False):
 # ================================
 #
 # There can be good reasons to manually set an Axes position.  A manual call
-# to `~.axes.Axes.set_position` will set the Axes so constrained_layout has
+# to `~.axes.Axes.set_position` will set the Axes so *constrained layout* has
 # no effect on it anymore. (Note that *constrained layout* still leaves the
 # space for the Axes that is moved).
 
@@ -497,12 +497,12 @@ def example_plot(ax, fontsize=12, hide_labels=False):
 #
 # *Constrained layout* usually adjusts the Axes positions on each draw
 # of the figure.  If you want to get the spacing provided by
-# *Constrained layout* but not have it update, then do the initial
+# *constrained layout* but not have it update, then do the initial
 # draw and then call ``fig.set_layout_engine('none')``.
 # This is potentially useful for animations where the tick labels may
 # change length.
 #
-# Note that *Constrained layout* is turned off for ``ZOOM`` and ``PAN``
+# Note that *constrained layout* is turned off for ``ZOOM`` and ``PAN``
 # GUI events for the backends that use the toolbar.  This prevents the
 # Axes from changing position during zooming and panning.
 #
@@ -517,7 +517,7 @@ def example_plot(ax, fontsize=12, hide_labels=False):
 # number of rows and columns is the same for each call.
 # The reason is that each call to `.pyplot.subplot` will create a new
 # `.GridSpec` instance if the geometry is not the same, and
-# *Constrained layout*.  So the following works fine:
+# *constrained layout*.  So the following works fine:
 
 fig = plt.figure(layout="constrained")
 
@@ -588,7 +588,7 @@ def example_plot(ax, fontsize=12, hide_labels=False):
 # Debugging
 # =========
 #
-# Constrained-layout can fail in somewhat unexpected ways.  Because it uses
+# *Constrained layout* can fail in somewhat unexpected ways.  Because it uses
 # a constraint solver the solver can find solutions that are mathematically
 # correct, but that aren't at all what the user wants.  The usual failure
 # mode is for all sizes to collapse to their smallest allowable value. If
@@ -615,7 +615,7 @@ def example_plot(ax, fontsize=12, hide_labels=False):
 # into rows and columns, with the relative width of the Axes in those
 # rows and columns set by *width_ratios* and *height_ratios*.
 #
-# In constrained_layout, each gridspec gets a *layoutgrid* associated with
+# In *constrained layout*, each gridspec gets a *layoutgrid* associated with
 # it.  The *layoutgrid* has a series of ``left`` and ``right`` variables
 # for each column, and ``bottom`` and ``top`` variables for each row, and
 # further it has a margin for each of left, right, bottom and top.  In each

diff --git a/tutorials/intermediate/legend_guide.py b/tutorials/intermediate/legend_guide.py
@@ -141,7 +141,7 @@
 # --------------
 #
 # Sometimes it makes more sense to place a legend relative to the (sub)figure
-# rather than individual Axes.  By using ``constrained_layout`` and
+# rather than individual Axes.  By using *constrained layout* and
 # specifying "outside" at the beginning of the *loc* keyword argument,
 # the legend is drawn outside the Axes on the (sub)figure.