Python matplotlib绘制多子图饼状图完整示例

拾柒

发布时间：2026-10-13| 6人浏览过

原创

本文介绍如何使用Python的matplotlib库绘制包含四个子图的饼状图。通过配置标签、颜色、爆炸效果及坐标轴，展示如何在同一画布中生成并排列多个饼图，适用于需要对比展示多组数据的场景。

Python matplotlib绘制多子图饼状图教程

本文详细介绍利用Python matplotlib库绘制饼状图的具体实现方法，旨在为读者提供实用的参考代码与解析。

一、代码实现


import numpy as np
import matplotlib.pyplot as plt
#The slices will be ordered and plotted counter-clockwise.
labels ='Frogs','Hogs','Dogs','Logs'
sizes =[15,30,45,10]
colors =['yellowgreen','gold','#FF0000','lightcoral']
#使饼状图中第2片和第4片裂开
explode =(0,0.1,0,0.1)
fig = plt.figure()
ax = fig.gca()
ax.pie(np.random.random(4), explode=explode, labels=labels, colors=colors,
autopct='%1.1f%%', shadow=True, startangle=90,
radius=0.25, center=(0,0), frame=True)
ax.pie(np.random.random(4), explode=explode, labels=labels, colors=colors,
autopct='%1.1f%%', shadow=True, startangle=90,
radius=0.25, center=(1,1), frame=True)
ax.pie(np.random.random(4), explode=explode, labels=labels, colors=colors,
autopct='%1.1f%%', shadow=True, startangle=90,
radius=0.25, center=(0,1), frame=True)
ax.pie(np.random.random(4), explode=explode, labels=labels, colors=colors,
autopct='%1.1f%%', shadow=True, startangle=90,
radius=0.25, center=(1,0), frame=True)
#设置坐标轴刻度
ax.set_xticks([0,1])
ax.set_yticks([0,1])
#设置坐标轴刻度上显示的标签
ax.set_xticklabels(["Sunny","Cloudy"])
ax.set_yticklabels(["Dry","Rainy"])
#设置坐标轴跨度
ax.set_xlim((-0.5,1.5))
ax.set_ylim((-0.5,1.5))
#设置纵横比相等
ax.set_aspect('equal')
plt.show()

二、运行结果展示