\documentclass[margin=10pt,convert]{standalone}
\usepackage{asymptote}
\begin{document}
\begin{asydef}
// Global Asymptote definitions
real linkLen=1, linkWidth=2pt;
real rl=2+linkLen; // distance between beads
guide link=(1,0)--(1+linkLen,0); // a link
pen beadColor=orange;
pen linkColor=beadColor;
void bead(transform t){
draw(t*link,linkColor+linkWidth);
radialshade(t*unitcircle,
beadColor,shift(t)*(-0.4,0.3),0.01
,black,shift(t)*(-0.4,0.3),1.5);
}
pair operator>(pair pos=(0,0), real phi){
transform t=shift(pos)*rotate(phi);
bead(t); // draw a bead with a link
pos+=rl*(Cos(phi),Sin(phi)); // Sin, Cos - in degrees, sin, cos - in radians
return pos;
};
pair pos;
\end{asydef}
\begin{asy}
size(150,150);
beadColor=lightyellow;
linkColor=lightblue;
pos=pos>90>90>42>0>0>0>0>-130>0>0>-130;
label( "Some text here",pos);
\end{asy}
\end{document}
Source: TeX.SE