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Commitd1fa5cc

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3 files changed

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-8
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3 files changed

+99
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‎examples/subplots_axes_and_figures/subfigures.py

Lines changed: 92 additions & 3 deletions
Original file line numberDiff line numberDiff line change
@@ -22,14 +22,13 @@
2222

2323

2424
defexample_plot(ax,fontsize=12,hide_labels=False):
25-
pc=ax.pcolormesh(np.random.randn(30,30))
25+
pc=ax.pcolormesh(np.random.randn(30,30),vmin=-2.5,vmax=2.5)
2626
ifnothide_labels:
2727
ax.set_xlabel('x-label',fontsize=fontsize)
2828
ax.set_ylabel('y-label',fontsize=fontsize)
2929
ax.set_title('Title',fontsize=fontsize)
3030
returnpc
3131

32-
3332
# gridspec inside gridspec
3433
fig=plt.figure(constrained_layout=True,figsize=(10,4))
3534
subfigs=fig.subfigures(1,2,wspace=0.07)
@@ -43,7 +42,7 @@ def example_plot(ax, fontsize=12, hide_labels=False):
4342

4443
axsRight=subfigs[1].subplots(3,1,sharex=True)
4544
fornn,axinenumerate(axsRight):
46-
#pc = example_plot(ax, hide_labels=True)
45+
pc=example_plot(ax,hide_labels=True)
4746
ifnn==2:
4847
ax.set_xlabel('xlabel')
4948
ifnn==1:
@@ -56,3 +55,93 @@ def example_plot(ax, fontsize=12, hide_labels=False):
5655
fig.suptitle('Figure suptitle',fontsize='xx-large')
5756

5857
plt.show()
58+
59+
##############################################################################
60+
# It is possible to mix subplots and subfigures using
61+
# `matplotlib.figure.Figure.add_subfigure`. This requires getting
62+
# the gridspec that the subplots are laid out on.
63+
64+
fig,axs=plt.subplots(2,3,constrained_layout=True,figsize=(10,4))
65+
66+
# clear the left column for the subfigure:
67+
forainaxs[:,0]:
68+
gridspec=a.get_subplotspec().get_gridspec()
69+
a.remove()
70+
71+
# plot data in remaining axes:
72+
forainaxs[:,1:].flat:
73+
a.plot(np.arange(10))
74+
75+
# make the subfigure in the empy gridspec slots:
76+
subfig=fig.add_subfigure(gridspec[:,0])
77+
78+
axsLeft=subfig.subplots(1,2,sharey=True)
79+
subfig.set_facecolor('0.75')
80+
foraxinaxsLeft:
81+
pc=example_plot(ax)
82+
subfig.suptitle('Left plots',fontsize='x-large')
83+
subfig.colorbar(pc,shrink=0.6,ax=axsLeft,location='bottom')
84+
85+
fig.suptitle('Figure suptitle',fontsize='xx-large')
86+
plt.show()
87+
88+
##############################################################################
89+
# Subfigures can have different widths and heights. This is exactly the
90+
# same example as the first example, but *width_ratios* has been changed:
91+
92+
fig=plt.figure(constrained_layout=True,figsize=(10,4))
93+
subfigs=fig.subfigures(1,2,wspace=0.07,width_ratios=[2,1])
94+
95+
axsLeft=subfigs[0].subplots(1,2,sharey=True)
96+
subfigs[0].set_facecolor('0.75')
97+
foraxinaxsLeft:
98+
pc=example_plot(ax)
99+
subfigs[0].suptitle('Left plots',fontsize='x-large')
100+
subfigs[0].colorbar(pc,shrink=0.6,ax=axsLeft,location='bottom')
101+
102+
axsRight=subfigs[1].subplots(3,1,sharex=True)
103+
fornn,axinenumerate(axsRight):
104+
pc=example_plot(ax,hide_labels=True)
105+
ifnn==2:
106+
ax.set_xlabel('xlabel')
107+
ifnn==1:
108+
ax.set_ylabel('ylabel')
109+
110+
subfigs[1].set_facecolor('0.85')
111+
subfigs[1].colorbar(pc,shrink=0.6,ax=axsRight)
112+
subfigs[1].suptitle('Right plots',fontsize='x-large')
113+
114+
fig.suptitle('Figure suptitle',fontsize='xx-large')
115+
116+
plt.show()
117+
118+
##############################################################################
119+
# Subfigures can be also be nested:
120+
121+
fig=plt.figure(constrained_layout=True,figsize=(10,8))
122+
123+
fig.suptitle('fig')
124+
125+
subfigs=fig.subfigures(1,2,wspace=0.07)
126+
127+
subfigs[0].set_facecolor('coral')
128+
subfigs[0].suptitle('subfigs[0]')
129+
130+
subfigs[1].set_facecolor('coral')
131+
subfigs[1].suptitle('subfigs[1]')
132+
133+
subfigsnest=subfigs[0].subfigures(2,1,height_ratios=[1,1.4])
134+
subfigsnest[0].suptitle('subfigsnest[0]')
135+
subfigsnest[0].set_facecolor('r')
136+
axsnest0=subfigsnest[0].subplots(1,2,sharey=True)
137+
fornn,axinenumerate(axsnest0):
138+
pc=example_plot(ax,hide_labels=True)
139+
subfigsnest[0].colorbar(pc,ax=axsnest0)
140+
141+
subfigsnest[1].suptitle('subfigsnest[1]')
142+
subfigsnest[1].set_facecolor('g')
143+
axsnest1=subfigsnest[1].subplots(3,1,sharex=True)
144+
145+
axsRight=subfigs[1].subplots(2,2)
146+
147+
plt.show()

‎lib/matplotlib/_constrained_layout.py

Lines changed: 7 additions & 5 deletions
Original file line numberDiff line numberDiff line change
@@ -107,7 +107,6 @@ def do_constrained_layout(fig, renderer, h_pad, w_pad,
107107
# figure. Add margins for colorbars...
108108
_make_layout_margins(fig,renderer,h_pad=h_pad,w_pad=w_pad,
109109
hspace=hspace,wspace=wspace)
110-
111110
_make_margin_suptitles(fig,renderer,h_pad=h_pad,w_pad=w_pad)
112111

113112
# if a layout is such that a columns (or rows) margin has no
@@ -279,12 +278,15 @@ def _make_margin_suptitles(fig, renderer, *, w_pad=0, h_pad=0):
279278
# top level figure margin larger.
280279
forpanelinfig.panels:
281280
_make_margin_suptitles(panel,renderer,w_pad=w_pad,h_pad=h_pad)
282-
invTransFig=fig.transSubfigure.inverted().transform_bbox
283-
284-
w_pad,h_pad= (fig.transSubfigure-
285-
fig.transFigure).transform((w_pad,h_pad))
286281

287282
iffig._suptitleisnotNoneandfig._suptitle.get_in_layout():
283+
invTransFig=fig.transSubfigure.inverted().transform_bbox
284+
parenttrans=fig.transFigure
285+
w_pad,h_pad= (fig.transSubfigure-
286+
parenttrans).transform((w_pad,1-h_pad))
287+
w_pad,one= (fig.transSubfigure-
288+
parenttrans).transform((w_pad,1))
289+
h_pad=one-h_pad
288290
bbox=invTransFig(fig._suptitle.get_tightbbox(renderer))
289291
p=fig._suptitle.get_position()
290292
fig._suptitle.set_position((p[0],1-h_pad))

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