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Rotate theta=0 on a Matplotlib polar plot
To set theta=0 on a matplotlib polar plot, we can take the following steps −
Create random theta in the range of 0 to 100; convert them into radian.
Using set_theta_zero_location() method, we can set the location of theta to 0.
Plot theta_in_rad and data_r using plot() method.
Set the title of the plot using title() method.
To display the figure, use show() method.
Example
import numpy as np
import matplotlib.pyplot as plt
import random
plt.rcParams["figure.figsize"] = [7.00, 3.50]
plt.rcParams["figure.autolayout"] = True
theta_in_rad = [float(i) * np.pi / 180.0 for i in range(0, 100, 10)]
data_r = random.sample(range(70, 90), 10)
ax = plt.subplot(111, polar=True)
ax.set_theta_zero_location("W")
ax.plot(theta_in_rad, data_r, color='r', linewidth=3)
ax.set_title("Example", va='bottom')
plt.show()Output
Updated on: 08-May-2021
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