matplotlib.pyplot.pie(x, explode=None, labels=None, colors=None, autopct=None, pctdistance=0.6, shadow=False, labeldistance=1.1, startangle=None, radius=None, counterclock=True, wedgeprops=None, textprops=None, center=(0, 0), frame=False, hold=None, data=None) 根据数组x绘制饼图 explode:数组扇形离圆点的距离(爆炸出来的那部分) labels:标题 colors:颜色 autopct:饼图扇区面积所显示的文字 shadow:阴影 startangle: title:图标题
import matplotlib.pyplot as plt
# Pie chart, where the slices will be ordered and plotted counter-clockwise:
labels = 'Frogs', 'Hogs', 'Dogs', 'Logs'
sizes = [15, 30, 45, 10]
explode = (0, 0.1, 0, 0) # only "explode" the 2nd slice (i.e. 'Hogs')
fig1, ax1 = plt.subplots()
ax1.pie(sizes, explode=explode, labels=labels, autopct='%1.1f%%',
shadow=True, startangle=90) #autopct 扇形区域显示的文字格式
ax1.axis("equal") # Equal aspect ratio ensures that pie is drawn as a circle.
plt.show()
#通过两个饼图绘制双层饼图
import matplotlib.pyplot as plt
vals1 = [1]
vals2 = [1, 1, 2]
vals3 = [1]
vals4 = [1]
fig, ax = plt.subplots()
labels = 'A', 'B', 'C', 'D'
ax.pie(vals1, radius=1.2)
ax.pie(vals2, radius=1.0,startangle=90)
ax.pie(vals3, radius=0.8)
ax.pie(vals4, radius=0.4)
ax.set(aspect="equal")
plt.show()
Ref： 1.https://zhuanlan.zhihu.com/p/27442584 2.http://matplotlib.org/api/pyplot_api.html