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
|
// Draw and/or fill a box on frame dest using the dimensions of frame src.
path box(frame dest, frame src=dest, real xmargin=0, real ymargin=xmargin,
pen p=currentpen, filltype filltype=NoFill, bool above=true)
{
pair z=(xmargin,ymargin);
int sign=filltype == NoFill ? 1 : -1;
pair h=0.5*sign*(max(p)-min(p));
path g=box(min(src)-h-z,max(src)+h+z);
frame F;
if(above == false) {
filltype.fill(F,g,p);
prepend(dest,F);
} else filltype.fill(dest,g,p);
return g;
}
path roundbox(frame dest, frame src=dest, real xmargin=0, real ymargin=xmargin,
pen p=currentpen, filltype filltype=NoFill, bool above=true)
{
pair m=min(src);
pair M=max(src);
pair bound=M-m;
int sign=filltype == NoFill ? 1 : -1;
real a=bound.x+2*xmargin;
real b=bound.y+2*ymargin;
real ds=0;
real dw=min(a,b)*0.3;
path g=shift(m-(xmargin,ymargin))*((0,dw)--(0,b-dw){up}..{right}
(dw,b)--(a-dw,b){right}..{down}
(a,b-dw)--(a,dw){down}..{left}
(a-dw,0)--(dw,0){left}..{up}cycle);
frame F;
if(above == false) {
filltype.fill(F,g,p);
prepend(dest,F);
} else filltype.fill(dest,g,p);
return g;
}
path ellipse(frame dest, frame src=dest, real xmargin=0, real ymargin=xmargin,
pen p=currentpen, filltype filltype=NoFill, bool above=true)
{
pair m=min(src);
pair M=max(src);
pair D=M-m;
static real factor=0.5*sqrt(2);
int sign=filltype == NoFill ? 1 : -1;
pair h=0.5*sign*(max(p)-min(p));
path g=ellipse(0.5*(M+m),factor*D.x+h.x+xmargin,factor*D.y+h.y+ymargin);
frame F;
if(above == false) {
filltype.fill(F,g,p);
prepend(dest,F);
} else filltype.fill(dest,g,p);
return g;
}
path box(frame f, Label L, real xmargin=0, real ymargin=xmargin,
pen p=currentpen, filltype filltype=NoFill, bool above=true)
{
add(f,L);
return box(f,xmargin,ymargin,p,filltype,above);
}
path roundbox(frame f, Label L, real xmargin=0, real ymargin=xmargin,
pen p=currentpen, filltype filltype=NoFill, bool above=true)
{
add(f,L);
return roundbox(f,xmargin,ymargin,p,filltype,above);
}
path ellipse(frame f, Label L, real xmargin=0, real ymargin=xmargin,
pen p=currentpen, filltype filltype=NoFill, bool above=true)
{
add(f,L);
return ellipse(f,xmargin,ymargin,p,filltype,above);
}
typedef path envelope(frame dest, frame src=dest, real xmargin=0,
real ymargin=xmargin, pen p=currentpen,
filltype filltype=NoFill, bool above=true);
object object(Label L, envelope e, real xmargin=0, real ymargin=xmargin,
pen p=currentpen, filltype filltype=NoFill, bool above=true)
{
object F;
F.L=L.copy();
Label L0=L.copy();
L0.position(0);
L0.p(p);
add(F.f,L0);
F.g=e(F.f,xmargin,ymargin,p,filltype);
return F;
}
object draw(picture pic=currentpicture, Label L, envelope e,
real xmargin=0, real ymargin=xmargin, pen p=currentpen,
filltype filltype=NoFill, bool above=true)
{
object F=object(L,e,xmargin,ymargin,p,filltype,above);
pic.add(new void (frame f, transform t) {
frame d;
add(d,t,F.L);
e(f,d,xmargin,ymargin,p,filltype,above);
add(f,d);
},true);
pic.addBox(L.position,L.position,min(F.f),max(F.f));
return F;
}
object draw(picture pic=currentpicture, Label L, envelope e, pair position,
real xmargin=0, real ymargin=xmargin, pen p=currentpen,
filltype filltype=NoFill, bool above=true)
{
return draw(pic,Label(L,position),e,xmargin,ymargin,p,filltype,above);
}
pair point(object F, pair dir, transform t=identity())
{
pair m=min(F.g);
pair M=max(F.g);
pair c=0.5*(m+M);
pair z=t*F.L.position;
real[] T=intersect(F.g,c--2*(m+realmult(rectify(dir),M-m))-c);
if(T.length == 0) return z;
return z+point(F.g,T[0]);
}
frame bbox(picture pic=currentpicture,
real xmargin=0, real ymargin=xmargin,
pen p=currentpen, filltype filltype=NoFill)
{
frame f=pic.fit(max(pic.xsize-2*xmargin,0),max(pic.ysize-2*ymargin,0));
box(f,xmargin,ymargin,p,filltype,above=false);
return f;
}
|
