Matplotlib从图中删除补丁 [英] Matplotlib remove patches from figure

问题描述

就我而言，我想在单击重置按钮时删除一个圆圈.但是，ax.clear()会清除当前图形上的所有圆圈.

In my case, I want to remove one of the circle when clicking reset button. However, ax.clear() would clear all circles on the current figure.

有人可以告诉我如何仅删除部分补丁吗?

Can someone tell me how to remove only part of the patches?

import matplotlib.patches as patches
import matplotlib.pyplot as plt
from matplotlib.widgets import Button

fig = plt.figure()
ax = fig.add_subplot(111) 

circle1 = patches.Circle((0.3, 0.3), 0.03, fc='r', alpha=0.5)
circle2 = patches.Circle((0.4, 0.3), 0.03, fc='r', alpha=0.5)
button = Button(plt.axes([0.8, 0.025, 0.1, 0.04]), 'Reset', color='g', hovercolor='0.975')
ax.add_patch(circle1)
ax.add_patch(circle2)

def reset(event):
    '''what to do here'''
    ax.clear()

button.on_clicked(reset)
plt.show()

推荐答案

尝试一下:

def reset(event):
    circle1.remove()

也许您更喜欢:

def reset(event):
    circle1.set_visible(False)

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