%% 
%%  A DANTE-Edition example
%% 
%%  Example 36-00-50 on page 788.
%% 
%%  Copyright (C) 2011 Herbert Voss
%% 
%%  It may be distributed and/or modified under the conditions
%%  of the LaTeX Project Public License, either version 1.3
%%  of this license or (at your option) any later version.
%% 
%%  See http://www.latex-project.org/lppl.txt for details.
%% 
%% 
%% ==== 
% Show page(s) 1
%% 
\documentclass[]{article}
\pagestyle{empty}
\setlength\textwidth{201.70511pt}
\setlength\parindent{0pt}

\usepackage{pst-node,pst-coil}

\begin{document}
\circlenode*{A}{A}\hfill\circlenode{B}{B}
\nccoil[coilaspect=0,coilheight=2.5,coilwidth=.5,%
	coilarm=0.45cm,arrowscale=2,linecolor=cyan]{->}{A}{B}

\bigskip
\circlenode{A}{A}\hfill\circlenode*{B}{B}
\nccoil[coilaspect=0,coilheight=.5,coilwidth=.5,%
	coilarm=0.5cm,arrowscale=2,linecolor=red]{->}{A}{B}

\bigskip
\circlenode{A}{A}\hfill\circlenode{B}{B}
\nccoil[coilheight=.5,coilwidth=.5,%
	coilarm=0.5cm,arrowscale=2,linecolor=blue]{->}{A}{B}
\end{document}