penrose3.py

Created by schraf

Created on August 13, 2022

692 Bytes

Version en couleurs ici

from turtle import *
from math import pi, sin, cos

def co(angle) : return cos(angle * pi / 180)
def si(angle) : return sin(angle * pi / 180)

def penrose(n):
    pensize(2)
    penup()
    delta = 360 / n
    alpha, beta = 180 - delta, delta / 2
    a, b = 70 * si(2 * beta), 10
    goto(-a / 2, 110 - a)
    pendown()    
    for _ in range(n):
        for (t,r) in ((360-delta,b),(delta,a+2*b+2*b*co(alpha)),
                      (delta,a+2*b+4*b*co(alpha)),(beta,2*b*si(alpha/2)),
                      (180-beta,a+2*b+2*b*co(alpha)),(360-delta,a+b),
                      (180,a),(delta,0)):
            rt(t);fd(r)

n = int(input('Nb cotes ? '))
penrose(n)
hideturtle()

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