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
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
|
beginchar("J",em#,5cap#/7,0dth#); "Theta";
path p[];
save ww,hh,dd;
ww = w/10; hh = h/5;
b := ww;
x0 = x2 = 5ww;
y1 = y3 = 5hh;
y0 = 10hh - y2 = 0;
x3 = 10ww - x1 = 0;
p1 = z0{right}..{up}z1;
p2 = z1{up}..{left}z2;
p3 = z2{left}..{down}z3;
p4 = z3{down}..{right}z0;
z8 = point .25 of p1;
z4 = point .5 of p1;
z9 = point .75 of p1;
z10 = point .25 of p2;
z5 = point .5 of p2;
z11 = point .75 of p2;
z12 = point .25 of p3;
z6 = point .5 of p3;
z13 = point .75 of p3;
z14 = point .25 of p4;
z7 = point .5 of p4;
z15 = point .75 of p4;
z16 = .5[z6,z7];
z17 = .5[z4,z5];
y18 = y19 = y16;
x18 = x12;
x19 = x11;
z20 = 5(ww,hh);
z21 = .5[z11,z19];
z22 = .5[z12,z18];
z23 = .5[z18,z15];
z24 = .5[z8,z19];
penpos0(2b,270);
penpos1(2b,0);
penpos2(2b,90);
penpos3(2b,180);
penpos4(b,315);
penpos5(b,45);
penpos6(b,135);
penpos7(b,225);
penpos8(.6b,292.5);
penpos9(.6b,337.5);
penpos10(.6b,22.5);
penpos11(.6b,67.5);
penpos12(.6b,112.5);
penpos13(.6b,157.5);
penpos14(.6b,202.5);
penpos15(.6b,247.5);
penpos16(2b,90);
penpos18(.6b,90);
penpos20(1.7b,90);
penpos19(.6b,90);
penpos17(2b,90);
penstroke z0e{right}..z8e..z4e..z9e..{up}z1e{up}..z10e..z5e..z11e..
{left}z2e{left}..z12e..z6e..z13e..{down}z3e{down}..z14e..z7e..z15e..
{right}z0e;
penstroke z16e..z18e..z20e..z19e..z17e;
pickup pencircle scaled .4pt;
draw z23{up}..z20..{up}z21;
draw z24{up}..z20..{up}z22;
draw fullcircle scaled .5b shifted(z21);
draw fullcircle scaled .5b shifted(z22);
endchar;
|