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
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
|
pair c=(0,0.8);
int iters(pair z, int max=160) {
int n=0;
while(abs(z) < 2 && n < max) {
z=z*z+c;
++n;
}
return n;
}
int[] cutoffs={12,15,20,30,40,60,200};
int key(pair z) {
int i=iters(z);
int j=0;
while(cutoffs[j] < i)
++j;
return j;
}
int width=210;
int height=190;
real zoom=2.5/200;
int[][] values=new int[width][height];
int[] histogram; for(int v=0; v < 10; ++v) histogram.push(0);
for(int i=0; i < width; ++i) {
real x=zoom*(i-width/2);
for(int j=0; j < height; ++j) {
real y=zoom*(j-height/2);
int v=key((x,y));
values[i][j]=v;
++histogram[v];
}
}
// Print out a histogram.
write("histogram: ");
write(histogram);
pen linepen(int i, int max) {
real w=i == -1 || i == max+1 ? 2.0 :
i % 10 == 0 || i == max ? 1.0 :
i % 5 == 0 ? 0.8 :
0.25;
return linewidth(w);
}
pen xpen(int i) {
return linepen(i,width)+(i == width/2 ? red :
i == 75 || i == width-75 ? dashed :
black);
}
pen ypen(int i) {
return linepen(i,height)+(i == height/2 ? red :
i == 75 || i == height-75 ? dashed :
black);
}
// The length of the side of a cross stitch cell.
real cell=2.3mm;
transform t=scale(cell);
picture tick;
draw(tick,(0,0)--(1,1));
picture ell;
draw(ell,(0,1)--(0,0)--(0.7,0));
picture cross;
draw(cross,(0,0)--(1,1));
draw(cross,(1,0)--(0,1));
picture star;
draw(star,(0.15,0.15)--(0.85,0.85));
draw(star,(0.85,0.15)--(0.15,0.85));
draw(star,(.5,0)--(.5,1));
draw(star,(0,.5)--(1,.5));
picture triangle;
draw(triangle,(0,0)--(2,0)--(1,1.5)--cycle);
picture circle;
fill(circle,shift(1,1)*unitcircle);
picture ocircle;
draw(ocircle,shift(1,1)*unitcircle);
picture spare;
fill(spare,(0,0)--(1,1)--(0,1)--cycle);
picture[] pics={tick,ell,cross,star,triangle,circle};
pen[] colors={black,0.2purple,0.4purple,0.6purple,0.8purple,purple,
0.8purple+0.2white};
frame[] icons;
icons.push(newframe);
for(picture pic : pics) {
// Scaling factor, so that we don't need weird line widths.
real X=1.0;
frame f=pic.fit(.8X*cell,.8X*cell,Aspect);
f=scale(1/X)*f;
// Center the icon in the cell.
f=shift((cell/2,cell/2)-0.5(max(f)-min(f)))*f;
icons.push(f);
}
void drawSection(int xmin, int xmax, int ymin, int ymax) {
static int shipoutNumber=0;
// Draw directly to a frame for speed reasons.
frame pic;
for(int i=xmin; i <= xmax; ++i) {
draw(pic,t*((i,ymin)--(i,ymax)),xpen(i));
if(i%10 == 0) {
label(pic,string(i),t*(i,ymin),align=S);
label(pic,string(i),t*(i,ymax),align=N);
}
}
for(int j=ymin; j <= ymax; ++j) {
draw(pic,t*((xmin,j)--(xmax,j)),ypen(j));
if(j%10 == 0) {
label(pic,string(j),t*(xmin,j),align=W);
label(pic,string(j),t*(xmax,j),align=E);
}
}
if(xmin < 0)
xmin=0;
if(xmax >= width)
xmax=width-1;
if(ymin < 0)
ymin=0;
if(ymax >= height)
ymax=height-1;
int stitchCount=0;
path box=scale(cell) *((0,0)--(1,0)--(1,1)--(0,1)--cycle);
for(int i=xmin; i < xmax; ++i)
for(int j=ymin; j < ymax; ++j) {
int v=values[i][j];
add(pic,icons[v],(i*cell,j*cell));
//fill(pic,shift(i*cell,j*cell)*box,colors[v]);
if(v != 0)
++stitchCount;
}
write("stitch count: ",stitchCount);
// shipout("xstitch"+string(shipoutNumber),pic);
shipout(pic);
++shipoutNumber;
}
//drawSection(-1,width+1,-1,height+1);
//drawSection(-1,80,height-80,height+1);
//drawSection(70,150,height-80,height+1);
drawSection(quotient(width,2)-40,quotient(width,2)+40,quotient(height,2)-40,quotient(height,2)+40);
//drawSection(width-150,width-70,-1,80);
//drawSection(width-80,width+1,-1,80);
|
