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# -*- coding:utf-8 -*-

__author__ = 'gjw'

__time__ = '2018/1/10 0010 上午 10:37'

# 题目：画图，综合例子。

# 程序分析：利用for循环控制100-999个数，每个数分解出个位，十位，百位。。

if __name__ == '__main__':

from tkinter import *

canvas = Canvas(width=300, height=300, bg='green')

canvas.pack(expand=YES, fill=BOTH)

x0 = 150

y0 = 100

canvas.create_oval(x0 - 10, y0 - 10, x0 + 10, y0 + 10)

canvas.create_oval(x0 - 20, y0 - 20, x0 + 20, y0 + 20)

canvas.create_oval(x0 - 50, y0 - 50, x0 + 50, y0 + 50)

import math

B = 0.809

for i in range(16):

a = 2 * math.pi / 16 * i

x = math.ceil(x0 + 48 * math.cos(a))

y = math.ceil(y0 + 48 * math.sin(a) * B)

canvas.create_line(x0, y0, x, y, fill='red')

canvas.create_oval(x0 - 60, y0 - 60, x0 + 60, y0 + 60)

for k in range(501):

for i in range(17):

a = (2 * math.pi / 16) * i + (2 * math.pi / 180) * k

x = math.ceil(x0 + 48 * math.cos(a))

y = math.ceil(y0 + 48 + math.sin(a) * B)

canvas.create_line(x0, y0, x, y, fill='red')

for j in range(51):

a = (2 * math.pi / 16) * i + (2 * math.pi / 180) * k - 1

x = math.ceil(x0 + 48 * math.cos(a))

y = math.ceil(y0 + 48 * math.sin(a) * B)

canvas.create_line(x0, y0, x, y, fill='red')

mainloop()