将重叠图添加到 pdf 多页

Question

I want to add overlapping plots to one subplot of a pdf page with the data: x1 , x2 , y1 , y2 etc. So far this is my current state but it is not working clearly yet to display the subplots in the pdf:

import numpy as np
from matplotlib.backends.backend_pdf import PdfPages

mp = PdfPages('multipage.pdf')

plt.grid()
plt.scatter(x1,y1)
plt.step([0,0],[-5,5], linewidth = 3,color ='orange')
plt.step([50,50],[45,55], linewidth = 3,color ='orange')
plt.step([100,100],[95,105], linewidth = 3,color ='orange')
plt.xlabel('x')
plt.ylabel('y')

fig = plt.figure()
ax1 = fig.add_subplot(211)

plt.show()

plt.grid()
plt.scatter(x2,y2)
plt.step([0,0],[-5,5], linewidth = 3,color ='orange')
plt.step([50,50],[45,55], linewidth = 3,color ='orange')
plt.step([100,100],[95,105], linewidth = 3,color ='orange')
plt.xlabel('x')
plt.ylabel('y')

fig = plt.figure()
ax2=fig.add_subplot(212)

plt.show()

mp.savefig(fig)

mp.close()

Answer 1

I'm not sure if this is what you're looking for, but perhaps it will offer some help. This is an adaptation of the example referenced in your comment to use PdfPages :

from matplotlib.backends.backend_pdf import PdfPages
import matplotlib.pyplot as plt
import numpy as np

x = np.linspace(0, 2 * np.pi, 400)
y = np.sin(x ** 2)

fig, axs = plt.subplots(2, 2)
axs[0, 0].plot(x, y)
axs[0, 1].plot(x, y, 'tab:orange')
axs[1, 0].plot(x, -y, 'tab:green')
axs[1, 1].plot(x, -y, 'tab:red')

mp = PdfPages('multipage.pdf')

mp.savefig(fig)
mp.close()