Python编写万花尺图案实例_Python

Python编写万花尺图案实例

2021-08-20 00:45zhimaHTTP Python

在本篇文章里小编给大家分享的是一篇关于Python编写万花尺图案实例的内容，有兴趣的朋友们可以参考下。

小的时候大家应该都玩过万花尺，将笔尖放置万花尺内不停的转动，便可以画出一幅精致的线稿图，现在我们不用万花尺，我们通过python也能绘制出万花尺图案。

（一）代码

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									#!/usr/bin/python# -*- coding: utf-8 - *-

									import mathclass pts:

									def __ init __(self):

									self.x = 0

									self.y = 0

									points = []

									def linetodemo():

									from tkinter import *

									screenx = 400

									screeny = 400

									canvas = canvas(width = screenx,height = screeny,bg = ‘white')

									aspectratio = 0.85

									maxpts = 15

									h = screeny

									w = screenx

									xcenter = w / 2

									ycenter = h / 2

									radius = (h - 30) / (aspectratio * 2) - 20

									step = 360 / maxpts

									angle = 0.0

									for i in range(maxpts):

									  rads = angle * math.pi / 180.0

									  p = pts()

									  p.x = xcenter + int(math.cos(rads) * radius)

									  p.y = ycenter - int(math.sin(rads) * radius * aspectratio)

									  angle += step

									  points.append(p)

									canvas.create_oval(xcenter - radius,ycenter - radius,

									          xcenter + radius,ycenter + radius)

									for i in range(maxpts):

									  for j in range(i,maxpts):

									    canvas.create_line(points[i].x,points[i].y,points[j].x,points[j].y)

									canvas.pack()

									mainloop()if __name__ == '__main__':

									linetodemo()