def draw_s(t, n):
fd(t, n / 2)
arc(t, n / 2, 180)
arc(t, n / 2, -180)
fdlt(t, n / 2, -90)
skip(t, 2 * n)
lt(t)
def draw_j(t, n):
beam(t, n, 2)
arc(t, n / 2, 90)
fd(t, 3 * n / 2)
skip(t, -2 * n)
rt(t)
skip(t, n / 2)
def bump(t, n, height):
"""Makes a bump with radius n at height*n
"""
stump(t, n * height)
arc(t, n / 2.0, 180)
lt(t)
fdlt(t, n * height + n)
def petal(t, r, angle):
"""Draws a petal using two arcs.
t: Turtle
r: radius of the arcs
angle: angle (degrees) that subtends the arcs
"""
for i in range(2):
arc(t, r, angle)
t.lt(180 - angle)
def print_spiral1(t):
l = 1
while l < 400:
arc(t, l, 60)
if l < 10:
l += 2
elif l < 20:
l += 5
else:
l += 10
def print_spiral2(t, cte):
l = 1
while l < 400:
arc(t, l, 60)
l *= cte