100-066 

一个最优美的图案。
 1 #! /usr/bin/env python
 2 # -*- coding:utf-8 -*-
 3 '''一个最优美的图案。'''
 4 
 5 import math
 6 class PTS:
 7     def __init__(self):
 8         self.x = 0
 9         self.y = 0
10 points = []
11 from tkinter import *
12 def LineToDemo():
13 
14     screenx = 400
15     screeny = 400
16     canvas = Canvas(width = screenx,height = screeny,bg = 'white')
17 
18     AspectRatio = 0.85
19     MAXPTS = 15
20     h = screeny
21     w = screenx
22     xcenter = w / 2
23     ycenter = h / 2
24     radius = (h - 30) / (AspectRatio * 2) - 20
25     step = 360 / MAXPTS
26     angle = 0.0
27     for i in range(MAXPTS):
28         rads = angle * math.pi / 180.0
29         p = PTS()
30         p.x = xcenter + int(math.cos(rads) * radius)
31         p.y = ycenter - int(math.sin(rads) * radius * AspectRatio)
32         angle += step
33         points.append(p)
34     canvas.create_oval(xcenter - radius,ycenter - radius,
35                        xcenter + radius,ycenter + radius)
36     for i in range(MAXPTS):
37         for j in range(i,MAXPTS):
38             canvas.create_line(points[i].x,points[i].y,points[j].x,points[j].y)
39 
40     canvas.pack()
41     mainloop()
42 if __name__ == '__main__':
43     LineToDemo()

 

posted @ 2018-05-30 19:41  睡到自然醒的猪  阅读(74)  评论(0)    收藏  举报

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