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问题描述

我一直在 matplotlib 中寻找新的线条样式,唯一可用的线条样式是 ["-", "--", "-.", ":",].(样式选项 ['', ' ', 'None',] 不算在内,因为它们只是隐藏了线条.)

在 Matplotlib pyplot 中真的只有 4 种线条样式吗?是否有任何扩展可以添加更多线条样式?有没有办法自定义线条样式?像这样的三个字符线样式怎么样:

  • '--.': 破折号 破折号
  • '-..': dash dot dot
  • '...': dot dot dot(空格)
  • 'xxx':x 在一行中
  • '/':锯齿形即'////'
  • '::': 平行点,即 ::::::

这些只是扩展线条样式范围的一些想法.

解决方案

您可以使用 dashes kwarg 来设置自定义虚线样式.

来自

I've been looking for new line styles in matplotlib, and the only line styles available are ["-", "--", "-.", ":",]. (The style options ['', ' ', 'None',] don't count because they just hide the lines.)

Are there really only 4 line styles in Matplotlib pyplot? Are there any extensions that add further line styles? Is there a way to customise line styles? How about some three character line styles like:

  • '--.': dash dash dot
  • '-..': dash dot dot
  • '...': dot dot dot (space)
  • 'xxx': x's in a line
  • '/': Zig zags ie '////'
  • '::': parrallel dots, ie :::::

These are just some ideas to expand the range of line styles.

解决方案

You can use the dashes kwarg to set custom dash styles.

From the docs:

Here's some examples based on a few of your suggestions. Obviously there are many more ways you could customise this.

import matplotlib.pyplot as plt

fig,ax = plt.subplots(1)

# 3 dots then space
ax.plot(range(10), range(10),     dashes=[3,6,3,6,3,18],  lw=3,c='b')

# dash dash dot
ax.plot(range(10), range(0,20,2), dashes=[12,6,12,6,3,6], lw=3,c='r')

# dash dot dot
ax.plot(range(10), range(0,30,3), dashes=[12,6,3,6,3,6],  lw=3,c='g')

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10-27 22:20