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

  • Last Updated : 08 Jun, 2020
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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: 
 

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