Python中的2D alpha形状/凹面外壳问题

import numpy as np
import matplotlib.pyplot as plt

from scipy.spatial import ConvexHull

def compute_convex_hull(points):
    hull = ConvexHull(points)
    return hull

# 生成随机点集
points = np.random.rand(100, 2)

# 计算凹面外壳或alpha形状
hull = compute_convex_hull(points)

# 绘制凹面外壳或alpha形状
plt.plot(points[:, 0], points[:, 1], 'o')
for simplex in hull.simplices:
    plt.plot(points[simplex, 0], points[simplex, 1], 'k-')
plt.show()