Python生成一个三维voronoi图
时间: 2023-05-31 21:04:59 浏览: 194
要生成三维voronoi图,可以使用Python的SciPy库中的spatial模块。以下是一个简单的例子,生成一个随机点集的三维voronoi图:
```python
import numpy as np
from scipy.spatial import Voronoi, voronoi_plot_3d
import matplotlib.pyplot as plt
from mpl_toolkits.mplot3d.art3d import Poly3DCollection
# 生成随机点集
points = np.random.rand(20, 3)
# 计算voronoi图
vor = Voronoi(points)
# 绘制voronoi图
fig = plt.figure()
ax = fig.add_subplot(111, projection='3d')
# 绘制voronoi图的边界
for simplex in vor.ridge_vertices:
if -1 not in simplex:
x = [vor.vertices[simplex[0]][0], vor.vertices[simplex[1]][0]]
y = [vor.vertices[simplex[0]][1], vor.vertices[simplex[1]][1]]
z = [vor.vertices[simplex[0]][2], vor.vertices[simplex[1]][2]]
ax.plot(x, y, z, 'k-', alpha=0.3)
# 绘制voronoi图的面
for i, region in enumerate(vor.regions):
if not region:
continue
vertices = [vor.vertices[j] for j in region]
ax.add_collection3d(Poly3DCollection([vertices], alpha=0.25))
# 绘制点集
ax.scatter(points[:,0], points[:,1], points[:,2], c='b')
ax.set_xlabel('X')
ax.set_ylabel('Y')
ax.set_zlabel('Z')
plt.show()
```
这会生成一个随机点集的三维voronoi图,其中蓝色点表示原始点集,黑色线表示voronoi图的边界,透明的多边形表示voronoi图的面:
![三维voronoi图](https://i.imgur.com/ttIuV7m.png)
阅读全文