7925 - [B]实例065：画组合图形

admin · 发表于 2021-10-20 08:45:41

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题目：一个最优美的图案。
程序分析：无。

import math8 A! K g4 I: U) B" A' [
from tkinter import *5 B! W, ]7 ~6 B1 J, N5 X
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class PTS: s; C& n5 _- S: u. K7 M2 J0 R
def __init__(self):
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self.x = 0& R$ R, A8 F( ~" ]8 e+ m
self.y = 0
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points = []; {# x0 A; R* z2 q
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def LineToDemo():
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screenx = 400
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screeny = 4003 x W" s; f4 @% J3 I! O/ `5 U5 G' r
canvas = Canvas(width = screenx,height = screeny,bg = 'white')9 B; O% W9 j: Z5 m( J
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AspectRatio = 0.85
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MAXPTS = 15
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h = screeny8 _; _& {) T8 \3 T9 Q# N" t6 |
w = screenx
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xcenter = w / 23 @' r1 S" r/ S. [. M' C
ycenter = h / 2
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radius = (h - 30) / (AspectRatio * 2) - 20/ W/ ~% q" l# l- A
step = 360 / MAXPTS1 f& G* c( U. Q$ o/ X3 b' G/ A
angle = 0.0
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for i in range(MAXPTS):! s0 V- |1 `, }. z1 T2 c
rads = angle * math.pi / 180.0
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p = PTS()/ J1 |# b! B! A) g$ C* G
p.x = xcenter + int(math.cos(rads) * radius)
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p.y = ycenter - int(math.sin(rads) * radius * AspectRatio)
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angle += step
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points.append(p)# J* h6 E; x) G
canvas.create_oval(xcenter - radius,ycenter - radius,
xcenter + radius,ycenter + radius)2 m- X& f2 z. h' X" p5 e4 c4 s1 p
for i in range(MAXPTS):% X' u0 Q; C7 W/ F
for j in range(i,MAXPTS):
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canvas.create_line(points[i].x,points[i].y,points[j].x,points[j].y)
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canvas.pack()% \1 w# ^" r& a; K
mainloop()8 u ~- y; \5 M; i, [$ c- t$ G
if __name__ == '__main__':4 `8 P9 p4 c; W
LineToDemo()

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[题库] 7925 - [B]实例065：画组合图形

马上注册，结交更多好友，享用更多功能，让你轻松玩转新大榭论坛！