Python中实现绘制动态旋转的星形

pip install matplotlib numpy

import numpy as np
 
import matplotlib.pyplot as plt
 
import matplotlib.animation as animation
 
# 创建一个函数来生成五角星的顶点
 
def star_vertices(size=100, rotation=0):
 
    # 半径和角度
 
    inner_radius = size / 2.5
 
    outer_radius = size
 
    angles = np.linspace(0, 2 * np.pi, 10, endpoint=False) + rotation
 
    radii = np.ones(10) * outer_radius
 
    radii[::2] = inner_radius
 
    return radii * np.exp(1j * angles)
 
 
 
# 更新函数，处理动画的每一帧
 
def update(num, scat, rotation):
 
    rotation += 0.1
 
    # 更新星形的位置
 
    new_points = star_vertices(rotation=rotation)
 
    scat.set_offsets(np.array([new_points.real, new_points.imag]).T)
 
    return scat,
 
 
 
# 创建图形和动画
 
fig, ax = plt.subplots()
 
ax.set_xlim(-120, 120)
 
ax.set_ylim(-120, 120)
 
scat = ax.scatter([], [], s=100)
 
 
 
# 创建动画
 
ani = animation.FuncAnimation(fig, update, frames=200, fargs=(scat, 0), interval=20, blit=True)
 
 
 
# 显示动画
 
plt.show()

python rotating_star.py