Matplotlib是Python中的一个库，它是数字的-NumPy库的数学扩展。轴类包含大多数图形元素：Axis，Tick，Line2D，Text，Polygon等，并设置坐标系。 Axes实例通过callbacks属性支持回调。
matplotlib.axes.Axes.remove_callback()方法
matplotlib库的axes模块中的remove_callback()方法用于根据其观察者ID删除回调。
用法：Axes.remove_callback(self, oid)
参数：此方法接受以下参数。
- oid:此参数是观察者ID
返回值：此方法不返回任何值，
以下示例说明了matplotlib中的matplotlib.axes.Axes.add_callback()函数：
范例1：
# Implementation of matplotlib function
import matplotlib.pyplot as plt
import numpy as np
import time
def update():
plt.get_current_fig_manager().canvas.figure.patch.set_facecolor(str(np.random.random()))
plt.draw()
print("Draw at time:", time.time())
def start_animation():
timer = fig.canvas.new_timer(interval = 50)
w = timer.add_callback(update)
timer.start()
timer.remove_callback(w)
fig, ax = plt.subplots()
start_animation()
ax.set_title('matplotlib.axes.Axes.remove_callback() \
function Example', fontweight ="bold")
plt.show()输出：
范例2：
# Implementation of matplotlib function
from random import randint, choice
import time
import matplotlib.pyplot as plt
import matplotlib.patches as mpatches
back_color = "black"
colors = ['red', 'green', 'blue', 'purple']
width, height = 4, 4
fig, ax = plt.subplots()
ax.set(xlim =[0, width], ylim =[0, height])
fig.canvas.draw()
ll = 1
def update():
global ll
x = randint(0, width - 1)
y = randint(0, height - 1)
arti = mpatches.Rectangle(
(x, y), 1, 1,
facecolor = choice(colors),
edgecolor = back_color
)
ax.add_artist(arti)
ax.draw_artist(arti)
fig.canvas.blit(ax.bbox)
print("Draw at time:", time.time())
if ll > 10:
timer.remove_callback(w)
ll += 1
timer = fig.canvas.new_timer(interval = 1)
w = timer.add_callback(update)
timer.start()
ax.set_title('matplotlib.axes.Axes.remove_callback()\
function Example', fontweight ="bold")
plt.show()输出：
Draw at time:1588597900.000635 Draw at time:1588597900.047566 Draw at time:1588597900.0787704 Draw at time:1588597900.11001 Draw at time:1588597900.1412835 Draw at time:1588597900.1725228 Draw at time:1588597900.2037697 Draw at time:1588597900.2350247 Draw at time:1588597900.2662778 Draw at time:1588597900.2975273 Draw at time:1588597900.313137
注：本文由纯净天空筛选整理自SHUBHAMSINGH10大神的英文原创作品 Matplotlib.axes.Axes.remove_callback() in Python。非经特殊声明，原始代码版权归原作者所有，本译文未经允许或授权，请勿转载或复制。