Python绘制彩虹饼图

from matplotlib import font_manager as fm
from matplotlib import cm
import matplotlib.pyplot as plt
import pandas as pd
import numpy as np

shapes = ['Cross', 'Cone', 'Egg', 'Teardrop', 'Chevron', 'Diamond', 'Cylinder', 
          'Rectangle', 'Flash', 'Cigar', 'Changing', 'Formation']
values = [287,   383,   842,   866,  1187,  1405,  1495,  1620,  1717, 2313,  2378,  3070]

s = pd.Series(values, index=shapes)
labels = s.index
sizes = s.values
# explode = (0.2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0)  # only "explode" the 1st slice

fig, axes = plt.subplots(figsize=(10,5),ncols=2) # 设置绘图区域大小
ax1, ax2 = axes.ravel()

colors = cm.rainbow(np.arange(len(sizes))/len(sizes)) # colormaps: Paired, autumn, rainbow, gray,spring,Darks
patches, texts, autotexts = ax1.pie(sizes, labels=labels, autopct='%1.0f%%',
        shadow=False, startangle=170, colors=colors)

ax1.axis('equal')

# 重新设置字体大小
proptease = fm.FontProperties()
proptease.set_size('xx-small')
# font size include: ‘xx-small’,x-small’,'small’,'medium’,‘large’,‘x-large’,‘xx-large’ or number, e.g. '12'
plt.setp(autotexts, fontproperties=proptease)
plt.setp(texts, fontproperties=proptease)

ax1.set_title('Shapes', loc='center')

# ax2 只显示图例（legend）
ax2.axis('off')
ax2.legend(patches, labels, loc='center left')

plt.tight_layout()
plt.savefig('Demo_project_set_legend_good.jpg')
plt.show()

运行效果如下：