%%
%% A DANTE-Edition example
%%
%% Example 24-03-38 on page 452.
%%
%% 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}
\usepackage{pst-circ}
\begin{document}
\begin{pspicture}(4,3)
\pnode(0,3){A}
\pnode(0,0){B}
\pnode(4,3){C}
\pnode(4,0){D}
\transformer(A)(B)(C)(D){$\mathcal T$}
\end{pspicture}
\end{document}
