def side_effect_2(turtle, order, side):
if order == 1:
polygon(turtle, side, 5)
else:
pos = [turtle.x, turtle.y]
_dir = turtle.phi
for i in xrange(5):
pentaflake(turtle, order - 1, side * 1.6)
turtle.right(72)
turtle.forward(side)
return
def side_effect_2(turtle, order, side):
if order == 1:
polygon(turtle, side, 5)
else:
pos = [ turtle.x, turtle.y ]
_dir = turtle.phi
for i in xrange(5):
pentaflake(turtle, order - 1, side * 1.6)
turtle.right( 72 )
turtle.forward( side )
return
def sierpinski(turtle, order, side):
A1 = [0, 0]
A2 = [side / 2., 0]
A3 = [side / 4., -3**0.5 / 4. * side]
if order == 1:
polygon(turtle, side, 3)
else:
side /= 2
shift = np.array([turtle.x, turtle.y])
for pos in [A1, A2, A3]:
pos += shift
turtle.set_pos(pos)
sierpinski(turtle, order - 1, side)
return
def sierpinski(turtle, order, side):
A1 = [ 0, 0]
A2 = [ side / 2., 0]
A3 = [ side / 4., - 3**0.5 / 4. * side]
if order == 1:
polygon(turtle, side, 3)
else:
side /= 2
shift = np.array( [turtle.x, turtle.y])
for pos in [ A1, A2, A3]:
pos += shift
turtle.set_pos( pos )
sierpinski(turtle, order - 1, side)
return
def side_effect_1(turtle, order, side):
if order == 1:
polygon(turtle, side, 5)
else:
pos = [turtle.x, turtle.y]
_dir = turtle.phi
for i in xrange(10):
#turtle.set_pos( pos )
turtle.forward(side)
turtle.right(72)
pentaflake(turtle, order - 1, side)
turtle.penup()
turtle.forward(side)
turtle.left(72)
turtle.forward(side)
turtle.right(36)
turtle.forward(side)
turtle.left(72)
turtle.forward(side)
turtle.right(72)
turtle.pendown()
return
def side_effect_1(turtle, order, side):
if order == 1:
polygon(turtle, side, 5)
else:
pos = [ turtle.x, turtle.y ]
_dir = turtle.phi
for i in xrange(10):
#turtle.set_pos( pos )
turtle.forward( side )
turtle.right( 72 )
pentaflake(turtle, order - 1, side)
turtle.penup()
turtle.forward( side )
turtle.left( 72 )
turtle.forward( side )
turtle.right( 36 )
turtle.forward( side )
turtle.left( 72 )
turtle.forward( side )
turtle.right(72)
turtle.pendown()
return