Python code coverage for Lib/turtledemo/penrose.py

#	count	content
1	n/a	#!/usr/bin/env python3
2	n/a	""" xturtle-example-suite:
3	n/a
4	n/a	xtx_kites_and_darts.py
5	n/a
6	n/a	Constructs two aperiodic penrose-tilings,
7	n/a	consisting of kites and darts, by the method
8	n/a	of inflation in six steps.
9	n/a
10	n/a	Starting points are the patterns "sun"
11	n/a	consisting of five kites and "star"
12	n/a	consisting of five darts.
13	n/a
14	n/a	For more information see:
15	n/a	http://en.wikipedia.org/wiki/Penrose_tiling
16	n/a	-------------------------------------------
17	n/a	"""
18	n/a	from turtle import *
19	n/a	from math import cos, pi
20	n/a	from time import clock, sleep
21	n/a
22	n/a	f = (5**0.5-1)/2.0 # (sqrt(5)-1)/2 -- golden ratio
23	n/a	d = 2 * cos(3*pi/10)
24	n/a
25	n/a	def kite(l):
26	n/a	fl = f * l
27	n/a	lt(36)
28	n/a	fd(l)
29	n/a	rt(108)
30	n/a	fd(fl)
31	n/a	rt(36)
32	n/a	fd(fl)
33	n/a	rt(108)
34	n/a	fd(l)
35	n/a	rt(144)
36	n/a
37	n/a	def dart(l):
38	n/a	fl = f * l
39	n/a	lt(36)
40	n/a	fd(l)
41	n/a	rt(144)
42	n/a	fd(fl)
43	n/a	lt(36)
44	n/a	fd(fl)
45	n/a	rt(144)
46	n/a	fd(l)
47	n/a	rt(144)
48	n/a
49	n/a	def inflatekite(l, n):
50	n/a	if n == 0:
51	n/a	px, py = pos()
52	n/a	h, x, y = int(heading()), round(px,3), round(py,3)
53	n/a	tiledict[(h,x,y)] = True
54	n/a	return
55	n/a	fl = f * l
56	n/a	lt(36)
57	n/a	inflatedart(fl, n-1)
58	n/a	fd(l)
59	n/a	rt(144)
60	n/a	inflatekite(fl, n-1)
61	n/a	lt(18)
62	n/a	fd(l*d)
63	n/a	rt(162)
64	n/a	inflatekite(fl, n-1)
65	n/a	lt(36)
66	n/a	fd(l)
67	n/a	rt(180)
68	n/a	inflatedart(fl, n-1)
69	n/a	lt(36)
70	n/a
71	n/a	def inflatedart(l, n):
72	n/a	if n == 0:
73	n/a	px, py = pos()
74	n/a	h, x, y = int(heading()), round(px,3), round(py,3)
75	n/a	tiledict[(h,x,y)] = False
76	n/a	return
77	n/a	fl = f * l
78	n/a	inflatekite(fl, n-1)
79	n/a	lt(36)
80	n/a	fd(l)
81	n/a	rt(180)
82	n/a	inflatedart(fl, n-1)
83	n/a	lt(54)
84	n/a	fd(l*d)
85	n/a	rt(126)
86	n/a	inflatedart(fl, n-1)
87	n/a	fd(l)
88	n/a	rt(144)
89	n/a
90	n/a	def draw(l, n, th=2):
91	n/a	clear()
92	n/a	l = l * f**n
93	n/a	shapesize(l/100.0, l/100.0, th)
94	n/a	for k in tiledict:
95	n/a	h, x, y = k
96	n/a	setpos(x, y)
97	n/a	setheading(h)
98	n/a	if tiledict[k]:
99	n/a	shape("kite")
100	n/a	color("black", (0, 0.75, 0))
101	n/a	else:
102	n/a	shape("dart")
103	n/a	color("black", (0.75, 0, 0))
104	n/a	stamp()
105	n/a
106	n/a	def sun(l, n):
107	n/a	for i in range(5):
108	n/a	inflatekite(l, n)
109	n/a	lt(72)
110	n/a
111	n/a	def star(l,n):
112	n/a	for i in range(5):
113	n/a	inflatedart(l, n)
114	n/a	lt(72)
115	n/a
116	n/a	def makeshapes():
117	n/a	tracer(0)
118	n/a	begin_poly()
119	n/a	kite(100)
120	n/a	end_poly()
121	n/a	register_shape("kite", get_poly())
122	n/a	begin_poly()
123	n/a	dart(100)
124	n/a	end_poly()
125	n/a	register_shape("dart", get_poly())
126	n/a	tracer(1)
127	n/a
128	n/a	def start():
129	n/a	reset()
130	n/a	ht()
131	n/a	pu()
132	n/a	makeshapes()
133	n/a	resizemode("user")
134	n/a
135	n/a	def test(l=200, n=4, fun=sun, startpos=(0,0), th=2):
136	n/a	global tiledict
137	n/a	goto(startpos)
138	n/a	setheading(0)
139	n/a	tiledict = {}
140	n/a	a = clock()
141	n/a	tracer(0)
142	n/a	fun(l, n)
143	n/a	b = clock()
144	n/a	draw(l, n, th)
145	n/a	tracer(1)
146	n/a	c = clock()
147	n/a	print("Calculation: %7.4f s" % (b - a))
148	n/a	print("Drawing: %7.4f s" % (c - b))
149	n/a	print("Together: %7.4f s" % (c - a))
150	n/a	nk = len([x for x in tiledict if tiledict[x]])
151	n/a	nd = len([x for x in tiledict if not tiledict[x]])
152	n/a	print("%d kites and %d darts = %d pieces." % (nk, nd, nk+nd))
153	n/a
154	n/a	def demo(fun=sun):
155	n/a	start()
156	n/a	for i in range(8):
157	n/a	a = clock()
158	n/a	test(300, i, fun)
159	n/a	b = clock()
160	n/a	t = b - a
161	n/a	if t < 2:
162	n/a	sleep(2 - t)
163	n/a
164	n/a	def main():
165	n/a	#title("Penrose-tiling with kites and darts.")
166	n/a	mode("logo")
167	n/a	bgcolor(0.3, 0.3, 0)
168	n/a	demo(sun)
169	n/a	sleep(2)
170	n/a	demo(star)
171	n/a	pencolor("black")
172	n/a	goto(0,-200)
173	n/a	pencolor(0.7,0.7,1)
174	n/a	write("Please wait...",
175	n/a	align="center", font=('Arial Black', 36, 'bold'))
176	n/a	test(600, 8, startpos=(70, 117))
177	n/a	return "Done"
178	n/a
179	n/a	if __name__ == "__main__":
180	n/a	msg = main()
181	n/a	mainloop()