Matplotlib.axis.Axis.remove_callback() function in Python

Matplotlib is a library in Python and it is numerical – mathematical extension for NumPy library. It is an amazing visualization library in Python for 2D plots of arrays and used for working with the broader SciPy stack.

Matplotlib.axis.Axis.remove_callback() Function

The Axis.remove_callback() function in axis module of matplotlib library is used to remove a callback based on its observer id. 

Syntax: Axis.remove_callback(self, oid) 

Parameters: This method accepts the following parameters. 

• oid: This parameter is the observer id.

Return value: This method does not return any value. 

Below examples illustrate the matplotlib.axis.Axis.remove_callback() function in matplotlib.axis:
Example 1:

Python3

# 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()

Output:

Example 2:

Python3

# 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()

Output: