%% 
%%  A DANTE-Edition example
%% 
%%  Example 19-01-2 on page 297.
%% 
%%  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{153.70511pt}
\setlength\parindent{0pt}
\usepackage{pstricks}
\newcommand\FSquare{%
  \begin{pspicture}(0.5,0.5)
     \psframe[dimen=middle](0.5,0.5)
  \end{pspicture}}

\usepackage[tiling]{pst-fill}

\begin{document}
\psboxfill{\FSquare}
\begin{pspicture}(2,2)
  \psframe[fillstyle=boxfill,fillsep=0.2cm](2,2)
\end{pspicture}~
\begin{pspicture}(2,2)
  \psframe[fillstyle=boxfill,fillsep=-0.25cm](2,2)
\end{pspicture}
\end{document}