注解
Click here 下载完整的示例代码
注释极坐标¶
此示例演示如何在极坐标图上创建注释。
有关注释功能的完整概述,请参见 annotation tutorial .
import numpy as np
import matplotlib.pyplot as plt
fig = plt.figure()
ax = fig.add_subplot(111, polar=True)
r = np.arange(0, 1, 0.001)
theta = 2 * 2*np.pi * r
line, = ax.plot(theta, r, color='#ee8d18', lw=3)
ind = 800
thisr, thistheta = r[ind], theta[ind]
ax.plot([thistheta], [thisr], 'o')
ax.annotate('a polar annotation',
xy=(thistheta, thisr), # theta, radius
xytext=(0.05, 0.05), # fraction, fraction
textcoords='figure fraction',
arrowprops=dict(facecolor='black', shrink=0.05),
horizontalalignment='left',
verticalalignment='bottom',
)
plt.show()
工具书类¶
以下函数、方法、类和模块的使用如本例所示:
出:
<function annotate at 0x7faa00cf8a60>
关键词:matplotlib代码示例,codex,python plot,pyplot Gallery generated by Sphinx-Gallery