For an assignment, I am trying to recreate the rose plot

Here is my code:

import numpy as np
import matplotlib.pyplot as plt

nmax=101 # choose a high number to "smooth out" lines in plots
x_angle = np.linspace(0,2*np.pi,nmax) # create an array x for bottom right 
y_br = abs(np.cos(3*x_angle)) # y for the bottom right subplot

# bottom right subplot controls
plt.plot(x_angle, y_br, 'tab:blue')

Is there a way to get it to look any closer to the original plot (e.g. make the petals narrower, set tick marks to 0.0, 0.5, 1.0)?

CodePudding user response：

You can use polar projection for this type of plot:

• for the ticks, it is set by rticks
• for the petals, it is controlled by the nmax feature

Here is a code that gives a better drawing:

import numpy as np
import matplotlib.pyplot as plt

nmax=int(1e5) # choose a high number to "smooth out" lines in plots
x_angle = np.linspace(0,2*np.pi,nmax) # create an array x for bottom right 
y_br = abs(np.cos(3*x_angle)) # y for the bottom right subplot

fig, ax = plt.subplots(subplot_kw={'projection': 'polar'})
ax.plot(x_angle, y_br, lw= 3)
ax.set_rticks([0, 0.5, 1])  # Less radial ticks