summaryrefslogtreecommitdiff
path: root/Demo/turtle/tdemo_yinyang.py
blob: 04dd75870afea055fefb8ecf894c09a7d25f99b9 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
#!/usr/bin/env python
"""       turtle-example-suite:

            tdemo_yinyang.py

Another drawing suitable as a beginner's
programming example.

The small circles are drawn by the circle
command.

"""

from turtle import *

def yin(radius, color1, color2):
    width(3)
    color("black")
    fill(True)
    circle(radius/2., 180)
    circle(radius, 180)
    left(180)
    circle(-radius/2., 180)
    color(color1)
    fill(True)
    color(color2)
    left(90)
    up()
    forward(radius*0.375)
    right(90)
    down()
    circle(radius*0.125)
    left(90)
    fill(False)
    up()
    backward(radius*0.375)
    down()
    left(90)

def main():
    reset()
    yin(200, "white", "black")
    yin(200, "black", "white")
    ht()
    return "Done!"

if __name__ == '__main__':
    main()
    mainloop()