如何在另一个 python 图中添加不同的图(作为插图) [英] How to add different graphs (as an inset) in another python graph

问题描述

我想制作这样的图表:

问题是，我从一些外部文件中获得了数据，我可以制作背景图，但我不知道如何在我已有的图内添加另一个图并更改数据两者的结果不同:

the problem is, I've got the data from some external files, and I can make the background graph, but I have no idea how to add another graph inside of the one that I already have and change the data to have different results in both of them:

下面我添加了我用来制作背景图的代码.希望有人能帮忙.

Below I am adding the code I am using to do the background graph. Hope someone can help.

from __future__ import division
import numpy as np
import matplotlib.pyplot as plt

plt.rc('text',usetex=True)
font = {'family':'serif','size':16}
plt.rc('font',**font)
plt.rc('legend',**{'fontsize':14})

matplotlib.rcParams['text.latex.preamble']=[r'usepackage{amsmath}']

data=np.loadtxt(r'C:...file.txt')
plt.plot(data[:,0],data[:,6],linewidth = 3,label='B$_0$ = 1.5 T d',linestyle= '--', color='black')

plt.show()

推荐答案

解决这个问题的方法不止一种，这取决于您希望插图具有的关系.

There's more than one way do to this, depending on the relationship that you want the inset to have.

如果你只想插入一个与更大图形没有集合关系的图形，只需执行以下操作:

If you just want to inset a graph that has no set relationship with the bigger graph, just do something like:

import matplotlib.pyplot as plt

fig, ax1 = plt.subplots()

# These are in unitless percentages of the figure size. (0,0 is bottom left)
left, bottom, width, height = [0.25, 0.6, 0.2, 0.2]
ax2 = fig.add_axes([left, bottom, width, height])

ax1.plot(range(10), color='red')
ax2.plot(range(6)[::-1], color='green')

plt.show()

如果您想在两者之间建立某种关系，请查看此处的一些示例:http://matplotlib.org/1.3.1/mpl_toolkits/axes_grid/users/overview.html#insetlocator

If you want to have some sort of relationship between the two, have a look at some of the examples here: http://matplotlib.org/1.3.1/mpl_toolkits/axes_grid/users/overview.html#insetlocator

如果您希望插图是放大"版本(例如，原始比例的两倍)，它会在您交互平移/缩放时自动更新，这将非常有用.

This is useful if you want the inset to be a "zoomed in" version, (say, at exactly twice the scale of the original) that will automatically update as you pan/zoom interactively.

不过，对于简单的插图，只需创建一个新轴，如我在上面的示例中所示.

For simple insets, though, just create a new axes as I showed in the example above.

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