注解
Click here 下载完整的示例代码
彩虹文本¶
该示例显示如何将多个文本对象串在一起。
历史¶
2012年2月,在Matplotlib用户列表上,G_khan Sever提出了以下问题:
matplotlib中是否有方法部分指定字符串的颜色?
例子:
莱贝尔(“今天多云。”)
我怎样才能显示“今天”为红色,“是”为绿色,“多云”为蓝色?
谢谢。
下面的解决方案是根据Paul Ivanov的原始答案修改的。
import matplotlib.pyplot as plt
from matplotlib.transforms import Affine2D
def rainbow_text(x, y, strings, colors, orientation='horizontal',
ax=None, **kwargs):
"""
Take a list of *strings* and *colors* and place them next to each
other, with text strings[i] being shown in colors[i].
Parameters
----------
x, y : float
Text position in data coordinates.
strings : list of str
The strings to draw.
colors : list of color
The colors to use.
orientation : {'horizontal', 'vertical'}
ax : Axes, optional
The Axes to draw into. If None, the current axes will be used.
**kwargs
All other keyword arguments are passed to plt.text(), so you can
set the font size, family, etc.
"""
if ax is None:
ax = plt.gca()
t = ax.transData
canvas = ax.figure.canvas
assert orientation in ['horizontal', 'vertical']
if orientation == 'vertical':
kwargs.update(rotation=90, verticalalignment='bottom')
for s, c in zip(strings, colors):
text = ax.text(x, y, s + " ", color=c, transform=t, **kwargs)
# Need to draw to update the text position.
text.draw(canvas.get_renderer())
ex = text.get_window_extent()
if orientation == 'horizontal':
t = text.get_transform() + Affine2D().translate(ex.width, 0)
else:
t = text.get_transform() + Affine2D().translate(0, ex.height)
words = "all unicorns poop rainbows ! ! !".split()
colors = ['red', 'orange', 'gold', 'lawngreen', 'lightseagreen', 'royalblue',
'blueviolet']
plt.figure(figsize=(6, 6))
rainbow_text(0.1, 0.05, words, colors, size=18)
rainbow_text(0.05, 0.1, words, colors, orientation='vertical', size=18)
plt.show()
关键词:matplotlib代码示例,codex,python plot,pyplot Gallery generated by Sphinx-Gallery