Python Fractal Structure, Pythagorean Tree Question.

from turtle import*

def pract(a,d):
    if d<=20: return
    for i in range(4):
        fd(d)
        lt(a)
    lt(a)
    fd(d)
    rt(a/2)
    pract(a,d*(2**(1/2)/2))

setup(800, 800)
up(); goto(0, -300); down()
speed(5)

pract(90,100)
done()

It's a Python Fractal problem. I made it on one side I'm asking you a question because I couldn't add it.

python3 turtle

2022-09-20 14:44

1 Answers

from turtle import *


def pract(d):
    """
             x

        x_________
        |         |
        |         |
        |         |
        ._________|

    . Start at a point and draw a square
    Draw a small square at point x.
    Finish the work and return to the initial starting point
    The direction is also returned to the original direction.

    """
    if d <= 20:
        return

    dd = d * (2 ** (1 / 2) / 2)
    for _ in range(4):
        fd(d)
        lt(90)
    lt(90)
    fd(d)
    rt(45)
    # Draw a small rectangle from the initial direction to lt 45 degrees at the first x point
    pract(dd)
    up()
    fd(dd)
    rt(90)
    down()
    # Draw a small rectangle from the initial direction to rt 45 degrees at the second x-point
    pract(dd)
    up()
    rt(90)
    fd(dd)
    lt(45)
    fd(d)
    lt(90)
    down()
    # The position and orientation at the end shall be the position and orientation at the start.


setup(800, 800)
up()
goto(0, -300)
down()
speed(5)

pract(100)
done()

2022-09-20 14:44

If you have any answers or tips

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