def spec(turtle, level, n):

if level == 0:

return

     height = math.sqrt(n**2 - (n/2)**2)

for i in range(120):

turtle.forward(n)

turtle.left(55)

turtle.forward(n)

turtle.left(55)

turtle.forward(n)

turtle.left(55)

turtle.penup()

turtle.back(n / 2)

turtle.right(90)

turtle.forward(height * 3)

turtle.left(90)

turtle.back(n * 2)

turtle.pendown()

     spec(turtle, level - 1, n * 2)

def spec2(turtle, level, n):

if level == 0:

return

     height = math.sqrt(n**2 - (n/2)**2)

for i in range(120):

turtle.forward(n)

turtle.left(55)

turtle.forward(n)

turtle.left(55)

turtle.forward(n)

turtle.left(55)

turtle.penup()

turtle.forward(n / 2)

turtle.right(90)

turtle.forward(height * 2)

turtle.left(90)

turtle.back(n)

turtle.pendown()

     spec2(turtle, level - 1, n * 2)

def spec3(turtle, n, r, alpha):

     angle = float(360) / r

     length = n

while length > 0:

           i = 0

while i < r and length > 0:

turtle.forward(length)

                length = length - 1

turtle.left(alpha)

                i += 1

from turtle import Turtle

from mydraw import *

import math

turtle = Turtle()

spec(turtle, 5, 5);

lines = turtle.lines

drawLinesToFile(lines, "spec")

turtle = Turtle()

spec2(turtle, 5, 5);

lines = turtle.lines

drawLinesToFile(lines, "spec2")

turtle = Turtle()

spec3(turtle, 300, 11, 88);

lines = turtle.lines

drawLinesToFile(lines, "spec3_a")

turtle = Turtle()

spec3(turtle, 300, 11, 72);

lines = turtle.lines

drawLinesToFile(lines, "spec3_b")