将重叠图添加到pdf multipage

Question

我想将重叠的图添加到包含数据的pdf页面的一个子图中：x1，x2，y1，y2等。到目前为止，这是我的当前状态，但它还不能清楚地显示pdf中的子图：

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

我不确定这是否是您想要的，但也许它会提供一些帮助。这是对使用PdfPages的the example referenced in your comment的改编

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()