Python 中的 matplotlib . axis . axis . remove _ callback()函数
原文:https://www . geesforgeks . org/matplotlib-axis-axis-remove _ callback-python 中的函数/
Matplotlib 是 Python 中的一个库，是 NumPy 库的数值-数学扩展。这是一个神奇的 Python 可视化库，用于 2D 数组图，并用于处理更广泛的 SciPy 堆栈。
matplotlib . axis . axis . remove _ 回调()函数
matplotlib 库的 Axis 模块中的 Axis.remove_callback()函数用于根据观察器 id 移除回调。
语法: Axis.remove_callback(self，oid)
参数:该方法接受以下参数。
- oid: 这个参数是观察者 id。
返回值:此方法不返回值。
以下示例说明 matplotlib . axis . axis . remove _ callback()函数在 matplotlib.axis: 示例 1:
Python 3
# Implementation of matplotlib function
from matplotlib.axis import Axis
import matplotlib.pyplot as plt
import numpy as np
import time
def update():
global timer
plt.get_current_fig_manager().canvas.figure.patch.set_facecolor(str(np.random.random()))
plt.draw()
def start_animation():
global it
timer = fig.canvas.new_timer(interval = 50)
w = timer.add_callback(update)
timer.start()
timer.remove_callback(w)
it = 1
fig = plt.figure()
start_animation()
fig.suptitle('matplotlib.axis.Axis.remove_callback() \
function Example\n', fontweight ="bold")
plt.show()
输出:
例 2:
Python 3
# Implementation of matplotlib function
from matplotlib.axis import Axis
from random import randint, choice
import time
import matplotlib.pyplot as plt
import matplotlib.patches as patches
back_color = "black"
colors = ['red', 'green', 'blue', 'purple', "yellow", "pink"]
width, height = 4, 4
fig = plt.figure()
plt.xlim([0, width])
plt.ylim([0, height])
fig.canvas.draw()
it = 1
def update():
global it
x = randint(0, width - 1)
y = randint(0, height - 1)
arti = patches.Rectangle(
(x, y), 1, 1,
facecolor = choice(colors),
edgecolor = back_color
)
fig.add_artist(arti)
fig.draw_artist(arti)
fig.canvas.blit(fig.bbox)
if it > 100:
timer.remove_callback(w)
it += 1
timer = fig.canvas.new_timer(interval = 1)
w = timer.add_callback(update)
timer.start()
fig.suptitle('matplotlib.axis.Axis.remove_callback() \
function Example\n', fontweight ="bold")
plt.show()
输出:
[https://media.geeksforgeeks.org/wp-content/cdn-uploads/20200608203154/python-matplotlob-remove-callback-axis.webm](https://media.geeksforgeeks.org/wp-content/cdn-uploads/20200608203154/python-matplotlob-remove-callback-axis.webm)版权属于：月萌API www.moonapi.com，转载请注明出处
