How to animate text in Matplotlib?

To animate text in matplotlib, we can take the following steps −

Import "animation" package from matplotlib.
Set the figure size and adjust the padding between and around the subplots.
Create a new figure or activate an existing figure.
Add an 'ax' to the figure as part of a subplot arrangement.
Initialize a variable "text" to hold a string.
Add text to the axes at x=0.20 and y=0.50.
Make a list of colors.
Make an animation by repeatedly calling a function *animate*, where size of text is increased and color is changed.
To display the figure, use show() method.

Example

from matplotlib import animation
import matplotlib.pyplot as plt

plt.rcParams["figure.figsize"] = [7.00, 3.50]
plt.rcParams["figure.autolayout"] = True

fig = plt.figure()
ax = fig.add_subplot(111)
text = 'You are welcome!'
txt = ax.text(.20, .5, text, fontsize=15)

colors = ['#1f77b4', '#ff7f0e', '#2ca02c', '#d62728', '#9467bd', '#8c564b', '#e377c2',    '#7f7f7f', '#bcbd22', '#17becf']


def animate(num):
   txt.set_fontsize(num * 2 + num)
   txt.set_color(colors[num % len(colors)])
   return txt,

anim = animation.FuncAnimation(fig, animate, frames=len(text) - 1, blit=True)

plt.show()

Output

It will produce the following output

Rishikesh Kumar Rishi

Published on 16-Sep-2021 13:24:52

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