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matplotlib/examples/pylab_examples/demo_tight_layout.py at master · feisuo/matplotlib · GitHub
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examples
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pylab_examples
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demo_tight_layout.py
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matplotlib
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examples
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pylab_examples
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demo_tight_layout.py
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import
matplotlib
.
pyplot
as
plt
import
itertools
import
warnings
fontsizes
=
itertools
.
cycle
([
8
,
16
,
24
,
32
])
def
example_plot
(
ax
):
ax
.
plot
([
1
,
2
])
ax
.
set_xlabel
(
'x-label'
,
fontsize
=
next
(
fontsizes
))
ax
.
set_ylabel
(
'y-label'
,
fontsize
=
next
(
fontsizes
))
ax
.
set_title
(
'Title'
,
fontsize
=
next
(
fontsizes
))
fig
,
ax
=
plt
.
subplots
()
example_plot
(
ax
)
plt
.
tight_layout
()
fig
, ((
ax1
,
ax2
), (
ax3
,
ax4
))
=
plt
.
subplots
(
nrows
=
2
,
ncols
=
2
)
example_plot
(
ax1
)
example_plot
(
ax2
)
example_plot
(
ax3
)
example_plot
(
ax4
)
plt
.
tight_layout
()
fig
, (
ax1
,
ax2
)
=
plt
.
subplots
(
nrows
=
2
,
ncols
=
1
)
example_plot
(
ax1
)
example_plot
(
ax2
)
plt
.
tight_layout
()
fig
, (
ax1
,
ax2
)
=
plt
.
subplots
(
nrows
=
1
,
ncols
=
2
)
example_plot
(
ax1
)
example_plot
(
ax2
)
plt
.
tight_layout
()
fig
,
axes
=
plt
.
subplots
(
nrows
=
3
,
ncols
=
3
)
for
row
in
axes
:
for
ax
in
row
:
example_plot
(
ax
)
plt
.
tight_layout
()
fig
=
plt
.
figure
()
ax1
=
plt
.
subplot
(
221
)
ax2
=
plt
.
subplot
(
223
)
ax3
=
plt
.
subplot
(
122
)
example_plot
(
ax1
)
example_plot
(
ax2
)
example_plot
(
ax3
)
plt
.
tight_layout
()
fig
=
plt
.
figure
()
ax1
=
plt
.
subplot2grid
((
3
,
3
), (
0
,
0
))
ax2
=
plt
.
subplot2grid
((
3
,
3
), (
0
,
1
),
colspan
=
2
)
ax3
=
plt
.
subplot2grid
((
3
,
3
), (
1
,
0
),
colspan
=
2
,
rowspan
=
2
)
ax4
=
plt
.
subplot2grid
((
3
,
3
), (
1
,
2
),
rowspan
=
2
)
example_plot
(
ax1
)
example_plot
(
ax2
)
example_plot
(
ax3
)
example_plot
(
ax4
)
plt
.
tight_layout
()
plt
.
show
()
fig
=
plt
.
figure
()
import
matplotlib
.
gridspec
as
gridspec
gs1
=
gridspec
.
GridSpec
(
3
,
1
)
ax1
=
fig
.
add_subplot
(
gs1
[
0
])
ax2
=
fig
.
add_subplot
(
gs1
[
1
])
ax3
=
fig
.
add_subplot
(
gs1
[
2
])
example_plot
(
ax1
)
example_plot
(
ax2
)
example_plot
(
ax3
)
with
warnings
.
catch_warnings
():
warnings
.
simplefilter
(
"ignore"
,
UserWarning
)
# This raises warnings since tight layout cannot
# handle gridspec automatically. We are going to
# do that manually so we can filter the warning.
gs1
.
tight_layout
(
fig
,
rect
=
[
None
,
None
,
0.45
,
None
])
gs2
=
gridspec
.
GridSpec
(
2
,
1
)
ax4
=
fig
.
add_subplot
(
gs2
[
0
])
ax5
=
fig
.
add_subplot
(
gs2
[
1
])
example_plot
(
ax4
)
example_plot
(
ax5
)
with
warnings
.
catch_warnings
():
# This raises warnings since tight layout cannot
# handle gridspec automatically. We are going to
# do that manually so we can filter the warning.
warnings
.
simplefilter
(
"ignore"
,
UserWarning
)
gs2
.
tight_layout
(
fig
,
rect
=
[
0.45
,
None
,
None
,
None
])
# now match the top and bottom of two gridspecs.
top
=
min
(
gs1
.
top
,
gs2
.
top
)
bottom
=
max
(
gs1
.
bottom
,
gs2
.
bottom
)
gs1
.
update
(
top
=
top
,
bottom
=
bottom
)
gs2
.
update
(
top
=
top
,
bottom
=
bottom
)
plt
.
show
()
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