Koch curve drawing

Koch curve drawing source

 

1. # KochDrawV1.py
2. import turtle
3. def koch(size, n):
4.     if n == 0:
5.         turtle.fd(size)
6.     else:
7.         for angle in [0, 60, -120, 60]:
8.            turtle.left(angle)
9.            koch(size/3, n-1)
10. def main():
11.     turtle.setup(800,400)
12.     turtle.penup()
13.     turtle.goto(-300, -50)
14.     turtle.pendown()
15.     turtle.pensize(2)
16.     Koch ( 600 , . 3 )      # 0 Koch curve length order, order
17.     turtle.hideturtle()
18. main()

Koch snowflakes drawing source

 

 

1. # KochDrawV2.py
2. import turtle
3. def koch(size, n):
4.     if n == 0:
5.         turtle.fd(size)
6.     else:
7.         for angle in [0, 60, -120, 60]:
8.            turtle.left(angle)
9.            koch(size/3, n-1)
10. def main():
11.     turtle.setup(600,600)
12.     turtle.penup()
13.     turtle.goto(-200, 100)
14.     turtle.pendown()
15.     turtle.pensize(2)
16.     Level  =  . 3       # order Koch snowflake. 3, the order
17.     koch(400,level)     
18.     turtle.right(120)
19.     koch(400,level)
20.     turtle.right(120)
21.     koch(400,level)
22.     turtle.hideturtle()
23. main()