我如何适合长冠军？

Question

有一个类似的问题 - 但我不能让那里提出的解决方案有效.

这是一个带有长标题的示例图:

#!/usr/bin/env python

import matplotlib
import matplotlib.pyplot
import textwrap

x = [1,2,3]
y = [4,5,6]

# initialization:
fig = matplotlib.pyplot.figure(figsize=(8.0, 5.0)) 

# lines:
fig.add_subplot(111).plot(x, y)

# title:
myTitle = "Some really really long long long title I really really need - and just can't - just can't - make it any - simply any - shorter - at all."

fig.add_subplot(111).set_title("\n".join(textwrap.wrap(myTitle, 80)))

# tight:
(matplotlib.pyplot).tight_layout()

# saving:
fig.savefig("fig.png")

它给了一个

 AttributeError: 'module' object has no attribute 'tight_layout'

如果我(matplotlib.pyplot).tight_layout()用fig.tight_layout()它替换它给出:

 AttributeError: 'Figure' object has no attribute 'tight_layout'

所以我的问题是 - 如何使标题符合情节？

Answer 1

这是我最终使用的:

#!/usr/bin/env python3

import matplotlib
from matplotlib import pyplot as plt
from textwrap import wrap

data = range(5)

fig = plt.figure()
ax = fig.add_subplot(111)

ax.plot(data, data)

title = ax.set_title("\n".join(wrap("Some really really long long long title I really really need - and just can't - just can't - make it any - simply any - shorter - at all.", 60)))

fig.tight_layout()
title.set_y(1.05)
fig.subplots_adjust(top=0.8)

fig.savefig("1.png")

Answer 2

• matplotlib：自动换行文本matplotlib是文档 中的官方答案
  • 查看注释以了解相关注意事项。
• matplotlib：文本属性和布局也很有用
• 由于 GitHub，在 Jupyter 中显示内联图不起作用：文本换行似乎在 jupyter Notebook 中不起作用 #10869，除非你执行此回答Matplotlib 和 Ipython-notebook：精确显示将要保存的数字
  • plt.savefig(...)似乎可以正常工作wrap

import matplotlib.pyplot as plt

x = [1,2,3]
y = [4,5,6]

# initialization:
fig, axes = plt.subplots(figsize=(8.0, 5.0))

# title:
myTitle = "Some really really long long long title I really really need - and just can't - just can't - make it any - simply any - shorter - at all."

# lines:
axes.plot(x, y)

# set title
axes.set_title(myTitle, loc='center', wrap=True)

plt.show()

• 以下也有效

plt.figure(figsize=(8, 5))

# title:
myTitle = "Some really really long long long title I really really need - and just can't - just can't - make it any - simply any - shorter - at all."

# lines:
plt.plot(x, y)

# set title
plt.title(myTitle, loc='center', wrap=True)

plt.show()

笔记

• 不推荐使用以下添加轴的方法

# lines:
fig.add_subplot(111).plot(x, y)

# title:
myTitle = "Some really really long long long title I really really need - and just can't - just can't - make it any - simply any - shorter - at all."

fig.add_subplot(111).set_title(myTitle, loc='center', wrap=True)

MatplotlibDeprecationWarning: Adding an axes using the same arguments as a previous axes currently reuses the earlier instance. In a future version, a new instance will always be created and returned. Meanwhile, this warning can be suppressed, and the future behavior ensured, by passing a unique label to each axes instance.

Answer 3

一种方法是简单地改变标题的字体大小:

import pylab as plt

plt.rcParams["axes.titlesize"] = 8

myTitle = "Some really really long long long title I really really need - and just can't - just can't - make it any - simply any - shorter - at all."
plt.title(myTitle)
plt.show()

你联系的答案是其他一些涉及添加换行符的好解决方案.甚至还有一个基于图形调整大小的自动解决方案!