| import numpy as np | |
| import matplotlib.pyplot as plt | |
| # ── Parameters ────────────────────────────────────────────────────────────── | |
| seed = 3908 | |
| n_petals = 6 # k in r = A|cos(k·θ/2)| | |
| amplitude = 1.757216 | |
| n_points = 1000 | |
| # ── Data ──────────────────────────────────────────────────────────────────── | |
| theta = np.linspace(0.0, 2.0 * np.pi, n_points) | |
| r = amplitude * np.abs(np.cos(n_petals * theta / 2.0)) | |
| # ── Plot ───────────────────────────────────────────────────────────────────── | |
| fig, ax = plt.subplots(subplot_kw={"projection": "polar"}, figsize=(5, 5)) | |
| ax.plot(theta, r, linewidth=1.5) | |
| ax.set_title( | |
| f"Rose Curve (k={n_petals}, A={amplitude:.2f})", pad=15 | |
| ) | |
| fig.tight_layout() | |
| plt.show() | |