How to make a quiver plot in polar coordinates using Matplotlib?

To make a quiver plot in polar coordinates using Matplotlib, we can take the following steps −

  • Set the figure size and adjust the padding between and around the subplots.

  • Create radii, thetas, theta and r data points using numpy.

  • Create a new figure or activate an existing figure.

  • Add an 'ax' to the figure as part of a subplot arrangement.

  • Make poly collections of arrows.

  • To display the figure, use show() method.


import numpy as np
from matplotlib import pyplot as plt

plt.rcParams["figure.figsize"] = [7.50, 3.50]
plt.rcParams["figure.autolayout"] = True

radii = np.linspace(0, 1, 5)
thetas = np.linspace(0, 2 * np.pi, 20)
theta, r = np.meshgrid(thetas, radii)

f = plt.figure()

ax = f.add_subplot(polar=True)
ax.quiver(theta, r, np.cos(theta) - np.sin(theta), np.sin(theta) + np.cos(theta))


Updated on: 23-Sep-2021

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