如何将点转换为三角形？

import numpy as np
import matplotlib.pyplot as plt
from scipy.spatial import Delaunay

# 生成点集
points = np.random.rand(10, 2)

# 计算最小值和最大值
xmin, ymin = np.min(points, axis=0)
xmax, ymax = np.max(points, axis=0)

# 计算边界
x = np.linspace(xmin, xmax, 100)
y = np.linspace(ymin, ymax, 100)
X, Y = np.meshgrid(x, y)

# 将点集和边界合并
all_points = np.vstack((points, X.flatten(), Y.flatten()))

# 进行Delaunay三角剖分
tri = Delaunay(all_points)

# 绘制三角形
plt.triplot(points[:,0], points[:,1], tri.simplices.copy())
plt.plot(points[:,0], points[:,1], 'o')
plt.show()