import matplotlib.pyplot as plt
import numpy as np
from matplotlib.patches import Ellipse

delta = 45.0  # degrees

angles = np.arange(0, 360 + delta, delta)
ells = [Ellipse((1, 1), 4, 2, a) for a in angles]

a = plt.subplot(111, aspect='equal')

for e in ells:
    e.set_clip_box(a.bbox)
    e.set_alpha(0.1)
    a.add_artist(e)

plt.xlim(-2, 4)
plt.ylim(-1, 3)

plt.show() 

　

M:\______\ellipse_rotated.py:8: MatplotlibDeprecationWarning: 
  Passing the angle parameter of __init__() positionally is deprecated since 
  Matplotlib 3.6; the parameter will become keyword-only two minor releases later.
  ells = [Ellipse((1, 1), 4, 2, a) for a in angles] 

Traceback (most recent call last):
  File "E:\______\ellipse_rotated.py", line 8, in 
    ells = [Ellipse((1, 1), 4, 2, a) for a in angles]
            ^^^^^^^^^^^^^^^^^^^^^^^^
TypeError: Ellipse.__init__() takes 4 positional arguments but 5 were given 

import matplotlib.pyplot as plt
import numpy as np
from matplotlib.patches import Ellipse

delta = 45.0  # degrees

angles = np.arange(0, 360 + delta, delta)
ells = [Ellipse((1, 1), 4, 2, angle=a) for a in angles]

a = plt.subplot(111, aspect='equal')

for e in ells:
    e.set_clip_box(a.bbox)
    e.set_alpha(0.1)
    a.add_artist(e)

plt.xlim(-2, 4)
plt.ylim(-1, 3)

plt.show() 

　Python 3.11.6 (matplotlib 3.7.1) 及び Python 3.12.0 (matplotlib 3.8.1) 共に、正常実行です。

　

• 2023/11/25 Ver=1.04 Python 3.12.0 (matplotlib 3.8.1)で確認
• 2023/11/25 Ver=1.04 Python 3.11.6 (matplotlib 3.7.1)で確認
• 2023/04/02 Ver=1.03 Python 3.11.2 で確認
• 2020/10/31 Ver=1.01 Python 3.7.8 で確認
• 2018/12/01 Ver=1.01 初版リリース

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