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Matplotlib.axis.Axis.zoom() function in Python
  • Last Updated : 08 Jun, 2020

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.zoom() Function

The Axis.zoom() function in axis module of matplotlib library is used to zoom in or out on axis .

Syntax: Axis.zoom(self, direction) 
 

Parameters: This method accepts the following parameters. 

  • direction: This parameter is the value to zoom in (direction > 0) or zoom out (direction <= 0).

Return value: This method does not return any value. 



Below examples illustrate the matplotlib.axis.Axis.zoom() 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 
    
fig, ax = plt.subplots() 
ax.plot([1, 2, 3])  
    
ax.xaxis.zoom(3)
   
ax.grid() 
   
fig.suptitle("""matplotlib.axis.Axis.zoom()
function Example\n""", fontweight ="bold")  
     
plt.show()

Output: 
 

Example 2:
 

Python3




# Implementation of matplotlib function
from matplotlib.axis import Axis
import numpy as np 
import matplotlib.pyplot as plt 
from matplotlib.widgets import Slider, Button, RadioButtons 
       
fig, ax1 = plt.subplots() 
plt.subplots_adjust(bottom = 0.25
t = np.arange(0.0, 1.0, 0.001
  
a0 = 5
f0 = 3
delta_f = 5.0
s = a0 * np.sin(2 * np.pi * f0 * t) 
       
ax1.plot(t, s, lw = 2, color = 'green'
  
ax1.xaxis.zoom(-2)
   
ax1.grid() 
   
fig.suptitle("""matplotlib.axis.Axis.zoom()
function Example\n""", fontweight ="bold")  
     
plt.show()

Output: 
 

 

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