Matplotlib.artist.Artist.update() in Python

Matplotlib is a library in Python and it is numerical – mathematical extension for NumPy library. The Artist class contains Abstract base class for objects that render into a FigureCanvas. All visible elements in a figure are subclasses of Artist.

matplotlib.artist.Artist.update() method

The update() method in artist module of matplotlib library is used to update this artist’s properties from the dictionary props.

Syntax: Artist.update(self, props)

Parameters: This method accepts the following parameters.

• props: This parameter is the dictionary of the properties.

Returns: This method does not return any value.

Below examples illustrate the matplotlib.artist.Artist.update() function in matplotlib:

Example 1:

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


np.random.seed(10**7)
geeks = np.random.randn(100)

fig, ax = plt.subplots()
ax.acorr(geeks, usevlines = True,
         normed = True,
         maxlags = 80, lw = 3)

ax.grid(True)

prop = {'xticks': np.array([-10., -5.,
                            0., 5., 10.]),
        'yticks': np.array([-0.2,  0.2,
                            0.6, 1., 1.4]),
        'ylabel': None, 'xlabel': None}

Artist.update(ax, prop)

fig.suptitle('matplotlib.artist.Artist.update()\
 function Example', fontweight ="bold")

plt.show()

Output:

Example 2:

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


xx = np.random.rand(16, 30)

fig, ax = plt.subplots()

m = ax.pcolor(xx)
m.set_zorder(-20)
prop = {'autoscalex_on': False}

Artist.update(ax, prop)

fig.suptitle('matplotlib.artist.Artist.update() \
function Example', fontweight ="bold")

plt.show()

Output: