%% 
%%  A DANTE-Edition example
%% 
%%  Example 21-04-1 on page 316.
%% 
%%  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{pstricks,pst-plot,pst-eps,graphicx,multido}
\def\particle#1#2{%
  \pscircle[fillstyle=solid,fillcolor=black](#1,#2){2pt} %particle
  \pscircle[linestyle=dotted,dotsep=1.5pt,linewidth=0.5pt,linecolor=gray](#1,#2){6pt}}

\begin{document}
\PSTtoEPS[bbllx=-1cm,bblly=-0.5cm,bburx=7cm,bbury=7cm]{figures/image1.eps}{%
  \begin{pspicture}(-1,-0.5)(7,7)
    \psset{linewidth=2pt}
    \psframe[linecolor=white](-1,-0.5)(7,7)
    \psgrid[subgriddiv=0,griddots=10,gridlabels=0,gridcolor=lightgray](0,0)(6,6)%grid
    \psline[linewidth=1.5pt]{-}(-1,6)(7,6) %boundary
    \psdots[dotscale=1,dotstyle=o,fillstyle=solid,fillcolor=red](3,6.5)  %photon
    \psline[linewidth=0.5pt]{->}(3,6.5)(3,5.5) %direction
    \multido{\ia=0+1}{7}{\multido{\ib=0+1}{7}{\particle{\ia}{\ib}}}
  \end{pspicture}}
\begin{figure}[htb]
\centering
\fbox{\includegraphics[scale=0.8]{figures/image1}}
\caption{Figure creation on the fly}
\end{figure}
\end{document}