How to animate a sine curve in Matplotlib?

To make animated sine curve, we can take the following steps −

• Set the figure size and adjust the padding between and around the subplots.
• Create a new figure or activate an existing figure.
• Add an axes to the current figure and make it the current axes.
• Plot a line with empty lists.
• To initialize the line, pass empty lists.
• To animate the sine curve, update sine curve values and return the line instance.
• To display the figure, use show() method.

Example

import numpy as np from matplotlib import pyplot as plt from matplotlib import animation plt.rcParams["figure.figsize"] = [7.50, 3.50] plt.rcParams["figure.autolayout"] = True fig = plt.figure() ax = plt.axes(xlim=(0, 2), ylim=(-2, 2)) line, = ax.plot([], [], lw=2) def init():    line.set_data([], [])    return line, def animate(i):    x = np.linspace(0, 2, 1000)    y = np.sin(2 * np.pi * (x - 0.01 * i))    line.set_data(x, y)    return line, anim = animation.FuncAnimation(fig, animate, init_func=init, frames=200, interval=20, blit=True) plt.show()

Output