%% 
%%  A DANTE-Edition example
%% 
%%  Example 32-01-20 on page 648.
%% 
%%  Copyright (C) 2010 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{177.70511pt}
\setlength\parindent{0pt}

\usepackage{pst-uml}

\begin{document}
\begin{pspicture}[showgrid=true](5,4)
\rput(1,1.5){\rnode{A}{%
    \umlClass{class1}{one\\two}}}
\rput(4,3){\rnode{B}{%
    \umlClass{class2}{one\\two}}}
\end{pspicture}
\ncEDE[linewidth=1pt,linestyle=dotted]{A}{B}
\ncSXE[linewidth=1pt,linecolor=red]{A}{B}
\nbput[npos=0.5]{\textbf{S}}\nbput[npos=1.5]{\textbf{X}}
\nbput[npos=2.5]{\textbf{X}}\naput[npos=3.5]{\textbf{E}}
\end{document}