Matplotlib.axes.Axes.cla() in Python

Matplotlib is a library in Python and it is numerical – mathematical extension for NumPy library. The Axes Class contains most of the figure elements: Axis, Tick, Line2D, Text, Polygon, etc., and sets the coordinate system. And the instances of Axes supports callbacks through a callbacks attribute.

matplotlib.axes.Axes.cla() Function

The Axes.cla() function in axes module of matplotlib library is used to clear the current axes.

Syntax: Axes.cla(self)

Parameters: This method does not accept any parameters.

Returns:This method does not returns any values.

Below examples illustrate the matplotlib.axes.Axes.cla() function in matplotlib.axes:

Example 1:

# Implementation of matplotlib function
import numpy as np
import matplotlib.pyplot as plt

np.random.seed(19)
data = np.random.random((5, 10, 10))

fig, ax = plt.subplots()

for i in range(len(data)):
    ax.cla()
    ax.imshow(data[i])
    ax.set_title("Axes {}".format(i))
    plt.pause(0.1)

Output:

Example 2:

# Implementation of matplotlib function
import numpy as np
import matplotlib.pyplot as plt

t = np.linspace(0.0, 2.0, 201)
s = np.sin(2 * np.pi * t)

fig, [ax, ax1] = plt.subplots(2, 1)

ax.set_ylabel('y-axis')
ax.plot(t, s)
ax.grid(True)
ax.set_title('matplotlib.axes.Axes.cla() Example\n\n Sample Example',
             fontsize = 12, fontweight ='bold')

ax1.set_ylabel('y-axis')
ax1.set_xlabel('x-axis')
ax1.plot(t, s)
ax1.grid(True)
ax1.cla()
ax1.set_title('Above example with cla()\
 function', fontsize = 12, fontweight ='bold')
plt.show()

Output: