使用 python 实现 Voronoi

以下程序 使用python实现 Voronoi图

from PIL import Image
import random
import math
 
def generate_voronoi_diagram(width, height, num_cells):
	image = Image.new("RGB", (width, height))
	putpixel = image.putpixel
	imgx, imgy = image.size
	nx = []
	ny = []
	nr = []
	ng = []
	nb = []
	for i in range(num_cells):
		nx.append(random.randrange(imgx))
		ny.append(random.randrange(imgy))
		nr.append(random.randrange(256))
		ng.append(random.randrange(256))
		nb.append(random.randrange(256))
	for y in range(imgy):
		for x in range(imgx):
			dmin = math.hypot(imgx-1, imgy-1)
			j = -1
			for i in range(num_cells):
				d = math.hypot(nx[i]-x, ny[i]-y)
				if d < dmin:
					dmin = d
					j = i
			putpixel((x, y), (nr[j], ng[j], nb[j]))
	image.save("VoronoiDiagram.png", "PNG")
        image.show()
 
generate_voronoi_diagram(500, 500, 25)