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 math
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from tkinter import *; D' W0 x, u* c0 \ M- y) H
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class PTS:0 s1 s' X" D( ~6 R" |8 r, @% n4 e* b
def __init__(self):
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self.x = 0$ S0 n- [$ A( K- ~
self.y = 07 o. b- Z' S1 {6 W
points = []
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def LineToDemo():
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screenx = 400
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screeny = 400) ]7 g, k+ J! n9 y% d2 w c
canvas = Canvas(width = screenx,height = screeny,bg = 'white')
# p! G& I5 _" ^. i, C: e$ h
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AspectRatio = 0.852 p1 {) K, A- z7 I( J( a
MAXPTS = 15
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h = screeny0 B3 @* v, W8 p4 Y
w = screenx5 Z- c- j& {8 f* O) O7 j& p2 s
xcenter = w / 2
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ycenter = h / 2
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radius = (h - 30) / (AspectRatio * 2) - 20
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step = 360 / MAXPTS
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angle = 0.0
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for i in range(MAXPTS):# a! a/ o0 J) D% Y9 j
rads = angle * math.pi / 180.0
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p = PTS()
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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% h3 ?* O4 w( c+ N# O- ~
points.append(p)
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canvas.create_oval(xcenter - radius,ycenter - radius,0 K V0 U; Q& O( \
xcenter + radius,ycenter + radius)
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for i in range(MAXPTS):% @7 h9 f0 i/ o* w7 L
for j in range(i,MAXPTS):+ e4 r5 \8 T; v
canvas.create_line(points[i].x,points[i].y,points[j].x,points[j].y)
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canvas.pack()" m) U! O a: ~! J2 e8 m s3 N, P" w
mainloop()
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if __name__ == '__main__':
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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！