Man and History: Python Matplotlib（二）細部元件

2022年12月6日星期二

Python Matplotlib（二）細部元件

2022/11/22

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Fig. m2.1. Anatomy of a figure.

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代碼 m2.1

# Program m2.1：Anatomy of a figure
import numpy as np
import matplotlib.pyplot as plt

# plt.figure
fig = plt.figure(figsize=(16, 16))
ax = fig.add_subplot(111)

# ax.plot
x = np.linspace(0, 4, 100)
y1 = 3 + np.cos(x)
y2 = 1 - np.sin(x)
ax.plot(x, y1, lw='5')
ax.plot(x, y2, lw='5')

# ax.scatter
np.random.seed(12)
y_point = np.random.uniform(y1, y2, len(x))
ax.scatter(x, y_point, s=30, facecolor='white', edgecolor='black', linewidth=1)

# ax.set_title
ax.set_title('Anatomy of a figure', fontsize=40)

# ax.legend
ax.legend(['Blue cosine', 'Orange sine'], fontsize=30)
ax.text(3.54, 3.4, 'Legend', style='italic', fontsize=20, fontweight='bold')
ax.text(3.5, 3.25, 'ax.legend', fontsize=20)

ringstyle = dict(zorder=50, facecolor='None', clip_on=False)
ax.scatter(3.6, 3.6, s=700, edgecolor='white', linewidth=2, **ringstyle)
ax.scatter(3.6, 3.6, s=900, edgecolor='black', linewidth=1, **ringstyle)
ax.scatter(3.6, 3.6, s=1100, edgecolor='white', linewidth=2, **ringstyle)

# plt.savefig('/content/drive/My Drive/pml/m0002_01.png')
plt.show()