Adafruit_CircuitPython_turtle/examples/turtle_sierpinski.py
2019-06-29 17:43:17 -04:00

37 lines
1.1 KiB
Python

import board
from adafruit_turtle import turtle
def getMid(p1, p2):
return ((p1[0] + p2[0]) / 2, (p1[1] + p2[1]) / 2) #find midpoint
def triangle(points, depth):
turtle.penup()
turtle.goto(points[0][0], points[0][1])
turtle.pendown()
turtle.goto(points[1][0], points[1][1])
turtle.goto(points[2][0], points[2][1])
turtle.goto(points[0][0], points[0][1])
if depth > 0:
triangle([points[0],
getMid(points[0], points[1]),
getMid(points[0], points[2])],
depth-1)
triangle([points[1],
getMid(points[0], points[1]),
getMid(points[1], points[2])],
depth-1)
triangle([points[2],
getMid(points[2], points[1]),
getMid(points[0], points[2])],
depth-1)
turtle = turtle(board.DISPLAY)
big = min(board.DISPLAY.width / 2, board.DISPLAY.height / 2)
little = big / 1.4
seed_points = [[-big, -little], [0, big], [big, -little]] #size of triangle
triangle(seed_points, 4)
while True:
pass