productbox 1.1 (30dec10)

git-svn-id: svn://tug.org/texlive/trunk@20886 c570f23f-e606-0410-a88d-b1316a301751

7 files changed, 2158 insertions, 727 deletions

diff --git a/Master/texmf-dist/doc/latex/productbox/Makefile b/Master/texmf-dist/doc/latex/productbox/Makefile
index b2cc3e8e895..e92f9a8414a 100644
--- a/Master/texmf-dist/doc/latex/productbox/Makefile
+++ b/Master/texmf-dist/doc/latex/productbox/Makefile
@@ -1,32 +1,54 @@
 #******************************************************************************
-#* $Id: Makefile 8332 2010-12-20 22:22:36Z gene $
+#* $Id: Makefile 8333 2010-12-29 19:58:06Z gene $
 #******************************************************************************
 #* Author: Gerd Neugebauer
 #*=============================================================================
 
+DISTFILES = productbox.ins \
+	    productbox.dtx \
+	    productbox.bib \
+	    README         \
+	    Makefile       \
+	    productbox.pdf
+
 all: productbox.pdf
 
-%.pdf: %.dtx %.sty %.ind
-	pdflatex -draftmode $*.dtx
-	pdflatex $*.dtx
+%.pdf: %.dtx productbox.sty %.bbl %.ind %.gls
+	pdflatex -interaction=batchmode -draftmode $*.dtx
+	pdflatex -interaction=batchmode $*.dtx
+	${RM} $*.out
 
 %.sty: %.dtx *.ins
 	rm -f $*.sty
 	tex $*.ins
 
+%.bbl: %.aux *.bib
+	bibtex $*
+
 %.ind: %.idx
-	makeindex -s gind $*
+	makeindex -s gind $*.idx
 
 %.idx: %.dtx
 	pdflatex -draftmode $*.dtx
 
+%.aux: %.dtx
+	pdflatex -draftmode $*.dtx
+
+%.gls: %.glo
+	makeindex -s gglo -o $*.gls $*.glo
+
+%.glo: %.dtx
+	pdflatex -draftmode $*.dtx
+
+#------------------------------------------------------------------------------
+
 productbox.tgz dist: productbox.pdf
-	tar -cvzf productbox.tgz productbox.dtx README Makefile productbox.pdf
+	tar -cvzf productbox.tgz ${DISTFILES}
 
 clean:
-	rm productbox.aux productbox.ilg productbox.idx productbox.log productbox.toc
+	${RM} productbox.aux productbox.ilg productbox.idx productbox.log productbox.toc productbox.glo productbox.out *~
 
 distclean: clean
-	rm productbox.sty
+	${RM} productbox.sty productbox.pdf
 
 #
diff --git a/Master/texmf-dist/doc/latex/productbox/README b/Master/texmf-dist/doc/latex/productbox/README
index 0f68565234a..08179325ca2 100644
--- a/Master/texmf-dist/doc/latex/productbox/README
+++ b/Master/texmf-dist/doc/latex/productbox/README
@@ -1,17 +1,17 @@
 Purpose:
-     productbox.dtx provides a style file for typesetting a
-     three-diemnsional product box. This product box can be rendered
-     as it is standing on a surface and some light is shed onto it.
-     Alternatively it can be typeset as a wireframe to be cut out
+     productbox.dtx   provides  a  style  file   for  typesetting  a
+     three-dimensional product box. This product box can be rendered
+     as it is standing on a surface and  some light is shed onto it.
+     Alternatively  it can be typeset  as a wireframe  to be cut out
      and glued together. This will lead to a physical product box.
 
 Documentation:
-     The documentation  can be generated from the original file
-     productbox.dtx with the doc style/package. LaTeX the file    
-     productbox.tex to get the full documentation in pdf format. 
+     The  documentation  can  be  generated  from the  original file
+     productbox.dtx  with  the  doc  style/package.  LaTeX  the file    
+     productbox.dtx to get the full documentation in pdf format. 
 
 Prerequisite:
-     This package needs PGF and TikZ to be present at least in
+     This  package  needs  PGF and  TikZ  to be present  at least in
      version 2.0.
 
 Author: Gerd Neugebauer
diff --git a/Master/texmf-dist/doc/latex/productbox/productbox.bib b/Master/texmf-dist/doc/latex/productbox/productbox.bib
new file mode 100644
index 00000000000..3bd37308a17
--- /dev/null
+++ b/Master/texmf-dist/doc/latex/productbox/productbox.bib
@@ -0,0 +1,19 @@
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%%% $Id: productbox.bib,v 0.00 2010/12/26 22:09:16 gene Exp $
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+@Manual{tikz-manual,
+  title = 	 {Ti{\it k}Z \& PGF: Manual for Version 2.0},
+  author =	 {Till Tantau},
+  year =	 2008,
+  month =	 feb,
+  note =	 {\texttt{http://sourceforge.net/projects/pgf}}
+}
+
+@Manual{geormetry-manual,
+  title = 	 {The {\tt geometry} package},
+  author =	 {Hideo Umeki},
+  year =	 2007,
+  month =	 jul,
+  note =	 {}
+}
diff --git a/Master/texmf-dist/doc/latex/productbox/productbox.pdf b/Master/texmf-dist/doc/latex/productbox/productbox.pdf
index b33a60f055f..d41b684054f 100644
--- a/Master/texmf-dist/doc/latex/productbox/productbox.pdf
+++ b/Master/texmf-dist/doc/latex/productbox/productbox.pdf
diff --git a/Master/texmf-dist/source/latex/productbox/productbox.dtx b/Master/texmf-dist/source/latex/productbox/productbox.dtx
index 78add9542f5..b5320bbbe36 100644
--- a/Master/texmf-dist/source/latex/productbox/productbox.dtx
+++ b/Master/texmf-dist/source/latex/productbox/productbox.dtx
@@ -1,22 +1,21 @@
-%%^^A%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%%^^A $Id: productbox.dtx 8332 2010-12-20 22:22:36Z gene $
+%^^A%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%%^^A $Id: productbox.dtx 8333 2010-12-29 19:58:06Z gene $
 %%^^A%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 %\iffalse
 %% Purpose:
 %%      productbox.dtx   provides  a  style  file   for  typesetting  a
-%%      three-diemnsional product box. This product box can be rendered
+%%      three-dimensional product box. This product box can be rendered
 %%      as it is standing on a surface and  some light is shed onto it.
 %%      Alternatively  it can be typeset as a wireframe  to be  cut out
 %%      and glued together. This will lead to a physical product box.
 %%
 %% Documentation:
 %%      The  documentation  can  be  generated  from the  original file
-%%      productbox.dtx  with  the  doc style/package.  LaTeX  the  file    
-%%      productbox.tex to get the full documentation in pdf format. 
+%%      productbox.dtx  with  the  doc style/package.  LaTeX  the  file
+%%      productbox.dtx to get the full documentation in pdf format.
 %%
 %% Prerequisite:
-%%      This package  needs  PGF and  TikZ  to be present  at least  in
-%%      version 2.0.
+%%      This package needs TikZ to be present at least in version 2.0.
 %%
 %% Author: Gerd Neugebauer
 %%         Im Lerchelsb\"ohl 5
@@ -30,85 +29,72 @@
 %%      responsibility to anyone for the consequences of using it or for
 %%      whether it serves any particular purpose or works at all, unless
 %%      he says so in writing.
-%% 
+%%
 %%      Everyone is granted permission to  copy, modify and redistribute
 %%      productbox.dtx, provided this copyright notice is preserved  and
 %%      any modifications are indicated.
-%% 
+%%
 %\fi
 %^^A%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 %
 % \title{A \LaTeX\  Style for
-%    Typesetting a Three-Dimensional Product Box\thanks{This file%    
-%    documents \filename\ version \fileversion\ as of \filedate.}} 
+%    Typesetting a Three-Dimensional Product Box\thanks{This file
+%    documents \filename\ version \fileversion\ 
+%    (from revision \filerevision) as of \filedate.}}
 % \author{Gerd Neugebauer\\\small
-%	  Im Lerchelsb\"ohl 5\\\small
-%	  64521 Gro\ss-Gerau (Germany)\\\small
-%	  Email: \texttt{gene@gerd-neugebauer.de}}
-%
-% \date{{\footnotesize Documentation date: \docdate}}
-%
+%         Im Lerchelsb\"ohl 5\\\small
+%         64521 Gro\ss-Gerau (Germany)\\\small
+%         Email: \texttt{\href{mailto:gene@gerd-neugebauer.de}{gene@gerd-neugebauer.de}}}
+% \date{{\footnotesize Documentation date: \filedate}}
+% \hypersetup{pdftitle=A LaTeX Style for Typesetting a Three-Dimensional Product Box}
+% \hypersetup{pdfauthor=Gerd Neugebauer}
+% \hypersetup{pdfsubject=\filename\ version \fileversion\ as of \filedate}
 % \maketitle
 %
 %^^A%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 % \changes{1.0}{2010/12/20}{First public release.}
+% \changes{1.1}{2010/12/23}{Simplified user interface added.}
 %^^A%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 %
 % \DoNotIndex{\ ,\",\',\.,\[,\\,\],\^,\`,\~,\@,\@dottedtocline}
-% \DoNotIndex{\@gobble,\@gobbletwo,\@highpenalty,\@ifnextchar,\@ifstar}
-% \DoNotIndex{\@ifundefined,\@namedef,\@nameuse,\@pnumwidth,\@startsection}
-% \DoNotIndex{\@starttoc,\@tempdima,\@thefnmark,\@undefined}
-% \DoNotIndex{\@ixpt,\@vpt,\@vipt,\@viipt,\@viiipt}
-% \DoNotIndex{\@xpt,\@xipt,\@xiipt,\@xivpt,\@xvii,\@xxpt,\@xxvpt}
-% \DoNotIndex{\AA,\AE}
-% \DoNotIndex{\CurrentOption,\DeclareOption,\H,\L,\LARGE,\LaTeX,\Large}
-% \DoNotIndex{\LoadClass,\O,\OE,\OptionNotUsed,\PassOptionsToClass}
+% \DoNotIndex{\@gobble,\@gobbletwo,\@ifnextchar,\@ifstar}
+% \DoNotIndex{\@ifundefined,\@namedef,\@nameuse,\@tempdima,\@undefined}
+% \DoNotIndex{\CurrentOption,\DeclareOption,\LARGE,\LaTeX,\Large}
+% \DoNotIndex{\InputIfFileExists,\EnableCrossrefs,\DocInput}
+% \DoNotIndex{\DeleteShortVerb,\CodelineIndex,\MacroFont}
+% \DoNotIndex{\RecordChanges,\ProvidesPackage,\NeedsTeXFormat}
+% \DoNotIndex{\LoadClass,\OptionNotUsed,\PassOptionsToClass}
 % \DoNotIndex{\ProcessOptions,\ProvidesClass,\RequirePackage,\TeX}
-% \DoNotIndex{\aa,\addcontentsline,\addpenalty,\advance,\addvspace,\ae}
-% \DoNotIndex{\ast,\arabic}
-% \DoNotIndex{\b,\baselineskip,\begin,\begingroup,\bf,\bgroup,\egroup}
-% \DoNotIndex{\bigskip,\box,\bullet}
-% \DoNotIndex{\c,\cal,\catcode,\chardef,\circ,\clearpage,\closein,\closeout}
-% \DoNotIndex{\clubpenalty,\csname}
-% \DoNotIndex{\d,\def,\dimen,\diamond,\divide,\documentclass,\dp}
-% \DoNotIndex{\else,\em,\empty,\end,\endcsname,\endgroup,\endinput,\endlist}
-% \DoNotIndex{\expandafter,\fbox,\fi,\footskip,\framebox,\frenchspacing}
-% \DoNotIndex{\futurelet,\gdef,\global,\gobble}
-% \DoNotIndex{\hangafter,\hangindent,\hbox,\headheight,\headsep,\hfil}
-% \DoNotIndex{\hfill,\hrule,\hskip,\hspace,\hss,\ht,\huge,\ifcat,\ifeof}
-% \DoNotIndex{\ifdim,\ifx,\ignorespaces,\immediate,\index,\input,\it}
-% \DoNotIndex{\itemindent,\itemsep,\jobname,\kern,\l,\labelsep,\labelwidth}
-% \DoNotIndex{\large,\leavevmode,\leftmark,\leftskip,\let,\list}
-% \DoNotIndex{\llap,\long,\lower}
-% \DoNotIndex{\m@th,\makebox,\magstep,\makeindex,\markboth,\mbox,\medskip}
+% \DoNotIndex{\addcontentsline,\advance}
+% \DoNotIndex{\begin,\begingroup,\bf,\bgroup,\egroup}
+% \DoNotIndex{\bigskip,\box,\clearpage,\color,\csname}
+% \DoNotIndex{\def,\definecolor,\dimen,\divide,\documentclass,\dp}
+% \DoNotIndex{\else,\empty,\end,\endcsname,\endgroup,\endinput}
+% \DoNotIndex{\expandafter,\fbox,\fi,\framebox}
+% \DoNotIndex{\futurelet,\gdef,\global,\gobble,\hbox,\hfil}
+% \DoNotIndex{\hfill,\hrule,\hskip,\hspace,\hss,\huge}
+% \DoNotIndex{\ifdim,\ifx,\ignorespaces,\immediate,\index,\it}
+% \DoNotIndex{\kern,\large,\let,\long,\lower}
+% \DoNotIndex{\makebox,\makeindex,\markboth,\mbox,\medskip}
 % \DoNotIndex{\newblock,\newcommand,\newcount,\newenvironment,\newfont}
-% \DoNotIndex{\newif,\newpage,\newread,\newwrite}
-% \DoNotIndex{\nobreak,\noindent,\normalsize,\null,\o,\oe}
-% \DoNotIndex{\openin,\openout,\or,\pagestyle,\par,\paragraph,\parbox}
+% \DoNotIndex{\newif,\newpage,\nobreak,\noindent,\normalsize,\null}
+% \DoNotIndex{\or,\pagestyle,\par,\paragraph,\parbox}
 % \DoNotIndex{\parfillskip,\parindent,\parsep,\parskip,\partopsep}
-% \DoNotIndex{\penalty,\quad}
-% \DoNotIndex{\raggedbottom,\raise,\relax,\renewcommand,\renewenvironment}
-% \DoNotIndex{\rightskip,\rm,\rule}
+% \DoNotIndex{\relax,\renewcommand,\renewenvironment,\rm,\rule}
 % \DoNotIndex{\sbox,\sc,\setcounter,\settowidth,\sf,\sfcode,\sl}
-% \DoNotIndex{\sloppy,\small,\space,\ss,\string,\symbol}
-% \DoNotIndex{\t,\tenex,\textstyle,\the,\thepage,\thispagestyle}
+% \DoNotIndex{\small,\space,\string,\symbol}
+% \DoNotIndex{\the,\thepage,\thispagestyle}
 % \DoNotIndex{\topmargin,\topsep,\tt,\typeout}
-% \DoNotIndex{\u,\unitlength,\usecounter,\v,\varepsilon,\vbox}
-% \DoNotIndex{\vfill,\vsize,\vskip,\vspace,\vss}
-% \DoNotIndex{\wd,\widowpenalty,\write,\xdef,\z@}
+% \DoNotIndex{\unitlength,\usecounter,\varepsilon,\vbox}
+% \DoNotIndex{\vfill,\vsize,\vskip,\vspace,\vss,\xdef}
 % \DoNotIndex{\usetikzlibrary,\usepackage,\tikzfading,\setkeys}
-% \DoNotIndex{\setbox,\scalebox,\pgftransformyslant,\pgftransformyshift}
-% \DoNotIndex{\pgftransformyscale,\pgftransformxslant,\pgftransformxshift}
-% \DoNotIndex{\pgftransformxscale,\pgfsetcornersarced,\pgfpoint}
+% \DoNotIndex{\setbox,\scalebox}
 % \DoNotIndex{\newbox,\ignorespacesafterend,\foreach,\filldraw}
 % \DoNotIndex{\fill,\errmessage,\draw,\define@key,\copy,\clip}
-% \DoNotIndex{\RecordChanges,\ProvidesPackage,\NeedsTeXFormat}
-% \DoNotIndex{\InputIfFileExists,\EnableCrossrefs,\DocInput}
-% \DoNotIndex{\DeleteShortVerb,\CodelineIndex}
 %
 %^^A%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-% \CheckSum{791}
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+% \CheckSum{1028}
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 %%  \CharacterTable
 %%  {Upper-case    \A\B\C\D\E\F\G\H\I\J\K\L\M\N\O\P\Q\R\S\T\U\V\W\X\Y\Z
 %%   Lower-case    \a\b\c\d\e\f\g\h\i\j\k\l\m\n\o\p\q\r\s\t\u\v\w\x\y\z
@@ -127,12 +113,15 @@
 %%
 %^^A%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 %
+%    \newcommand\TikZ{Ti\textit{k}Z}
+%
 %    \begin{abstract}
-%      \textsf{productbox.dtx} provides a style file for typesetting a
-%      three-diemnsional product box. This product box can be rendered
-%      as it is standing on a surface and some light is shed onto it.
-%      Alternatively it can be typeset as a wireframe to be cut out and
-%      glued together. This will lead to a physical product box.
+%      The package \texttt{productbox} provides a style file for
+%      typesetting a three-dimensional product box. This product box
+%      can be rendered as it is standing on a surface and some light
+%      is shed onto it. Alternatively it can be typeset as a wireframe
+%      to be cut out and glued together. This will lead to a physical
+%      product box.
 %    \end{abstract}
 %
 %    \begin{center}%
@@ -141,249 +130,541 @@
 %        \draw[xshift=.2mm,yshift=-.2mm] (#1,#2) node[black,opacity=.9]{#3};
 %        \draw (#1,#2) node[blue]{#3};
 %      }%
-%    \begin{ProductBox}[mirror=true,flare=true,scale=.6]
-%      \begin{Front}
-%        \shade [top color=yellow!20!red,bottom color=yellow!80!red]
-%          rectangle (88mm,100mm);
-%        \PB(44mm,85mm){\Huge\bf Product Box}
-%        \draw (77mm,90mm) node[circle,fill=white,rotate=330]{\small\bf\fileversion};
-%        \draw (44mm,75mm) node{A \LaTeX\ package for just another kind of boxes};
-%    
-%        \foreach \x in {1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16} {
-%          \count0=\x \multiply\count0 4
-%          \draw [red,line width=.2mm]
-%          (0mm,0 mm) .. controls (88mm,\the\count0 mm) and (\x mm,66mm) ..
-%          (88mm,\the\count0 mm);
-%          \draw [xshift=.4mm,white,line width=.2mm,opacity=.5]
-%          (0mm,0 mm) .. controls (88mm,\the\count0 mm) and (\x mm,66mm) ..
-%          (88mm,\the\count0 mm);
-%        }
-%    
-%        \clip (0mm,0mm) .. controls (88mm,64mm) and (16mm,66mm) ..
-%        (88mm,64mm) -- (88mm,100mm) -- (0mm,100mm) -- cycle;
-%        \draw (4mm,66mm) node [white!30!black,anchor=north west] {
-%          \begin{minipage}{160mm}\tt\tiny\raggedright
-%
-%    |\usepackage{productbox}|\\
-%    | |\\
-%    | |\\ 
-%    |\begin{ProductBox}[scale=.8]|\\
-%    |  \begin{Front}|\\
-%    |    \shade [top color=yellow!20!red,bottom color=yellow!80!red]|\\
-%    |      rectangle (88mm,100mm);|\\
-%    |    \PB(44mm,85mm){\Huge\bf Product Box}|\\
-%    |    \draw (77mm,90mm) node[circle,fill=white]{\small\bf\fileversion};|\\
-%    |    \draw (44mm,75mm) node{A \LaTeX\ package for just another kind of boxes};|\\
-%    ||\\
-%    |    \foreach \x in {1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16} {|\\
-%    |      \count0=\x \multiply\count0 4|\\
-%    |      \draw [red,line width=.2mm]|\\
-%    |      (0mm,0 mm) .. controls (88mm,\the\count0 mm) and (\x mm,66mm) ..|\\
-%    |      (88mm,\the\count0 mm);|\\
-%    |      \draw [xshift=.4mm,white,line width=.2mm,opacity=.5]|\\
-%    |      (0mm,0 mm) .. controls (88mm,\the\count0 mm) and (\x mm,66mm) ..|\\
-%    |      (88mm,\the\count0 mm);|\\
-%    |    }|\\
-%    |    \clip (0mm,0mm) .. controls (88mm,64mm) and (16mm,66mm) ..|\\
-%    |    (88mm,64mm) -- (88mm,100mm) -- (0mm,100mm) -- cycle;|\\
-%    |  \end{Front}|\\
-%    |  \begin{Top}|\\
-%    |    \shade [outer color=yellow!20!red,inner color=yellow!80!red]|\\
-%    |      rectangle (88mm,30mm);|\\
-%    |    \PB(44mm,15mm){\huge\bf Product Box}|\\
-%    |  \end{Top}|\\
-%    |  \begin{Left}|\\
-%    |    \fill [top color=yellow!20!red,bottom color=yellow!80!red]|\\
-%    |      rectangle (30mm,100mm);|
-%          \end{minipage}};
-%      \end{Front}
-%      \begin{Top}
-%        \shade [outer color=yellow!20!red,inner color=yellow!80!red]
-%          rectangle (88mm,30mm);
-%        \PB(44mm,15mm){\huge\bf Product Box}
-%      \end{Top}
-%      \begin{Left}
-%        \fill [top color=yellow!20!red,bottom color=yellow!80!red]
-%          rectangle (30mm,100mm);
-%        \PB(15mm,90mm){
-%          \begin{minipage}{25mm}\centering
-%            \Large\bf Product Box
-%          \end{minipage}}
-%        \draw (15mm,25mm) node {
-%          \begin{minipage}{25mm}\sf\tiny\raggedright\parskip=.75ex
-%            Copyright (C) 2010 Gerd Neugebauer
-%    
-%            productbox.dtx is distributed in the hope that it will be useful,
-%            but  WITHOUT ANY WARRANTY.  No  author  or  distributor  accepts
-%            responsibility to anyone for the consequences of using it or for
-%            whether it serves any particular purpose or works at all, unless
-%            he says so in writing.
-%    
-%            Everyone is granted permission to  copy, modify and redistribute
-%            productbox.dtx, provided this copyright notice is preserved  and
-%            any modifications are indicated.
-%          \end{minipage}};
-%      \end{Left}
-%    \end{ProductBox}
+%      \begin{ProductBox}[mirror=true,flare=true,scale=.6]
+%        \begin{Front}
+%          \shade [top color=yellow!20!red,bottom color=yellow!80!red]
+%            rectangle (88mm,100mm);
+%          \PB(44mm,85mm){\Huge\bf Product Box}
+%          \draw (77mm,90mm) node[circle,ball color=white,rotate=330]{\small\bf\fileversion};
+%          \draw (44mm,75mm) node{A \LaTeX\ package for just another kind of boxes};
+%
+%          \foreach \x in {1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16} {
+%            \count0=\x \multiply\count0 4
+%            \draw [red,line width=.2mm]
+%            (0mm,0 mm) .. controls (88mm,\the\count0 mm) and (\x mm,66mm) ..
+%            (88mm,\the\count0 mm);
+%            \draw [xshift=.4mm,white,line width=.2mm,opacity=.5]
+%            (0mm,0 mm) .. controls (88mm,\the\count0 mm) and (\x mm,66mm) ..
+%            (88mm,\the\count0 mm);
+%          }
+%
+%          \clip (0mm,0mm) .. controls (88mm,64mm) and (16mm,66mm) ..
+%          (88mm,64mm) -- (88mm,100mm) -- (0mm,100mm) -- cycle;
+%          \draw (4mm,66mm) node [white!30!black,anchor=north west] {
+%            \begin{minipage}{160mm}\tt\tiny\raggedright
+%              |\usepackage{productbox}|\\
+%              | |\\
+%              | |\\
+%              |\begin{ProductBox}[scale=.8]|\\
+%              |  \begin{Front}|\\
+%              |    \shade [top color=yellow!20!red,bottom color=yellow!80!red]|\\
+%              |      rectangle (88mm,100mm);|\\
+%              |    \PB(44mm,85mm){\Huge\bf Product Box}|\\
+%              |    \draw (77mm,90mm) node[circle,ball color=white]{\small\bf\fileversion};|\\
+%              |    \draw (44mm,75mm) node{A \LaTeX\ package for just another kind of boxes};|\\
+%              ||\\
+%              |    \foreach \x in {1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16} {|\\
+%              |      \count0=\x \multiply\count0 4|\\
+%              |      \draw [red,line width=.2mm]|\\
+%              |      (0mm,0 mm) .. controls (88mm,\the\count0 mm) and (\x mm,66mm) ..|\\
+%              |      (88mm,\the\count0 mm);|\\
+%              |      \draw [xshift=.4mm,white,line width=.2mm,opacity=.5]|\\
+%              |      (0mm,0 mm) .. controls (88mm,\the\count0 mm) and (\x mm,66mm) ..|\\
+%              |      (88mm,\the\count0 mm);|\\
+%              |    }|\\
+%              |    \clip (0mm,0mm) .. controls (88mm,64mm) and (16mm,66mm) ..|\\
+%              |    (88mm,64mm) -- (88mm,100mm) -- (0mm,100mm) -- cycle;|\\
+%              |  \end{Front}|\\
+%              |  \begin{Top}|\\
+%              |    \shade [outer color=yellow!20!red,inner color=yellow!80!red]|\\
+%              |      rectangle (88mm,30mm);|\\
+%              |    \PB(44mm,15mm){\huge\bf Product Box}|\\
+%              |    \draw (77mm,20mm)|\\
+%              |      node[circle,ball color=white,rotate=330]{\small\bf\fileversion};|\\
+%              |  \end{Top}|\\
+%            \end{minipage}};
+%        \end{Front}
+%        \begin{Top}
+%          \shade [outer color=yellow!20!red,inner color=yellow!80!red]
+%            rectangle (88mm,30mm);
+%          \PB(44mm,15mm){\huge\bf Product Box}
+%          \draw (77mm,20mm)
+%            node[circle,ball color=white,rotate=330]{\small\bf\fileversion};
+%        \end{Top}
+%        \begin{Bottom}
+%          \shade [outer color=yellow!20!red,inner color=yellow!80!red]
+%            rectangle (88mm,30mm);
+%        \end{Bottom}
+%        \begin{Left}
+%          \fill [top color=yellow!20!red,bottom color=yellow!80!red]
+%            rectangle (30mm,100mm);
+%          \PB(15mm,90mm){
+%            \begin{minipage}{25mm}\centering
+%              \Large\bf Product Box
+%            \end{minipage}}
+%          \draw (15mm,25mm) node {
+%            \begin{minipage}{25mm}\sf\tiny\raggedright\parskip=.75ex
+%              Copyright (C) 2010 Gerd Neugebauer
+%
+%              productbox.dtx is distributed in the hope that it will be useful,
+%              but  WITHOUT ANY WARRANTY.  No  author  or  distributor  accepts
+%              responsibility to anyone for the consequences of using it or for
+%              whether it serves any particular purpose or works at all, unless
+%              he says so in writing.
+%
+%              Everyone is granted permission to  copy, modify and redistribute
+%              productbox.dtx, provided this copyright notice is preserved  and
+%              any modifications are indicated.
+%            \end{minipage}};
+%        \end{Left}
+%        \begin{Right}
+%          \fill [top color=yellow!20!red,bottom color=yellow!80!red]
+%            rectangle (30mm,100mm);
+%          \PB(15mm,90mm){
+%            \begin{minipage}{25mm}\centering
+%              \Large\bf Product Box
+%            \end{minipage}}
+%        \end{Right}
+%      \end{ProductBox}
 %    \end{center}
-%    
+%
 %    \newpage
 %    \tableofcontents
 %    \newpage
 %
+%    \section{Introduction}
+%
+%    Humans are tied to the physical world. Even in the age of
+%    software it is desirable to have a physical representation for
+%    it. In the commercial world the software is sold in product boxes
+%    containing a CD or DVD and printed documentation.
+%
+%    But even for open source software having a product box provides a
+%    means to associate a physical object with the more or less
+%    virtual entity ``software''.
+%
+%    There are many programs around devoted to producing layouts for
+%    product boxes. Each graphics program can be used for this purpose
+%    as well. Nevertheless the integration of material from the \TeX\
+%    world is not that easy.
+%
+%    The \LaTeX\ package |productbox| is an attempt to use the
+%    possibilities for \LaTeX\ and some packages to provide a means
+%    for typesetting the faces of a product box and assemble them into
+%    a three-dimensional image.
+%
+%    Note that this ``image'' is in fact a \textsc{pdf} object. It can
+%    be scaled without loss of quality\footnote{unless some pixel
+%    images have been included}. It is also possible to extract
+%    the text from the product box by cut and paste in an appropriate
+%    \textsc{pdf} reader.
+%
+%
 %    \section{The User Interface}
 %
-%    This style is based on Ti\emph{k}Z and \textsc{pgf} at least in
-%    version 2.0. It is best used with a \LaTeX\ variant which is able
-%    to produce PDF. If no proper tool chain is used then some of the
-%    effects should not be used.
-%    
+%    The \LaTeX\ style |productbox| is based on \TikZ{} at
+%    \cite{tikz-manual} least in version~2.0. It is best used with a
+%    \LaTeX\ variant which is able to produce \textsc{pdf}. If no
+%    proper tool chain is used then some of the effects should not be
+%    used.
 %
 %    \DescribeEnv{ProductBox}
-%    The envrionment |ProductBox| provides the central means for
+%    The environment |ProductBox| provides the central means for
 %    producing a product box. The contents is used to define the
 %    appearance of the faces. Finally the selected type of output is
-%    produced. 
+%    produced.
+%
+%    The content of the environment consists mainly of the definition
+%    of the six faces. Not all of them need to be defined. If one face
+%    is not defined then it appears as an empty rectangle of white
+%    color.
+%
+%    Thus you usually want to define the faces. Two approaches are
+%    provided to define the content of the faces. The simplified
+%    interface does not really require any knowledge of the underlying
+%    \TikZ{} package. Just some knowledge of \LaTeX\ is sufficient.
+%    The extended interface opens the full power to the user. Both
+%    interface types can be freely intermixed. The tow kinds of
+%    interfaces are described in section~\ref{sec:simplified}
+%    and~\ref{sec:extended}.
+%
+%    The environment |ProductBox| can be controlled with a number of
+%    optional parameters. Those parameters are described in
+%    section~\ref{sec:options}.
+%
+%
+%    \subsection{The Simplified User Interface}\label{sec:simplified}
+%
+%    The simplified user interface is meant for someone not familiar
+%    with \TikZ. It encapsulates nearly anything and relies on just
+%    some basic \LaTeX\ experience. As a downside the functionality is
+%    restricted. Any fancy artwork on the box background can hardly be
+%    achieved.
+%
+%    The following example shows a complete -- even rather useless --
+%    definition of a product box with the simplified user interface.
 %
-%    {\footnotesize\tt
+%    \noindent
+%    {\advance\textwidth-\fboxsep \advance\textwidth-\fboxsep
+%    \advance\textwidth-\fboxrule \advance\textwidth-\fboxrule
+%    \setbox127\hbox\bgroup\begin{minipage}{\textwidth}\footnotesize
 %    |\begin{ProductBox}|\\
+%    |  \begin{FrontFace}[bottom color=white!30!blue,top color=white]|\\
+%    |    \Huge Product Box|\\
+%    |  \end{FrontFace}|\\
+%    |  \begin{BackFace}[top color=yellow!30!red,bottom color=white]|\\
+%    |    \large Back Face|\\
+%    |  \end{BackFace}|\\
+%    |  \begin{TopFace}[outer color=white!30!red,inner color=white]|\\
+%    |    \large Top Face|\\
+%    |  \end{TopFace}|\\
+%    |  \begin{BottomFace}[outer color=red,inner color=black]|\\
+%    |    \large Bottom Face|\\
+%    |  \end{BottomFace}|\\
+%    |  \begin{LeftFace}[left color=green,right color=yellow]|\\
+%    |    \large Left Face|\\
+%    |  \end{LeftFace}|\\
+%    |  \begin{RightFace}[left color=white,right color=black]|\\
+%    |    \large Right Face|\\
+%    |  \end{RightFace}|\\
+%    |\end{ProductBox}|
+%    \end{minipage}\egroup
+%    \fcolorbox{red!30!black}{yellow!30!white}{\box127}}
+%
+%    \newcommand\simpleSample[1]{%
+%    \begin{ProductBox}[scale=.25,#1]
+%      \begin{FrontFace}[bottom color=white!30!blue,top color=white]
+%        \Huge Product Box
+%      \end{FrontFace}
+%      \begin{BackFace}[top color=yellow!30!red,bottom color=white]
+%        \large Back Face
+%      \end{BackFace}
+%      \begin{TopFace}[outer color=white!30!red,inner color=white]
+%        \large Top Face
+%      \end{TopFace}
+%      \begin{BottomFace}[outer color=red,inner color=black]
+%        \large Bottom Face
+%      \end{BottomFace}
+%      \begin{LeftFace}[left color=green,right color=yellow]
+%        \large Left Face
+%      \end{LeftFace}
+%      \begin{RightFace}[left color=white,right color=black]
+%        \large Right Face
+%      \end{RightFace}
+%    \end{ProductBox}%
+%    }
+%
+%    This code renders as
+%
+%    \begin{center}\simpleSample{}\end{center}
+%    \newcommand\SampleEnv[1]{\noindent\par
+%    \fcolorbox{red!30!black}{yellow!30!white}{\begin{minipage}[b]{.98\textwidth}\footnotesize\tt
+%    \textcolor{blue}{\char92begin}\char123#1\char125\\
+%    \hspace*{2em}...\\
+%    \textcolor{blue}{\char92end}\char123#1\char125
+%    \end{minipage}}\par}
+%
+%    The content of the environment |ProductBox| is simply evaluated.
+%    It can contain any code you like. Useful for the production of a
+%    product  box are some inner environments. They are called
+%    |FrontFace|, |BackFace|, |LeftFace|, |RightFace|, |TopFace|, and
+%    |BottomFace|.  They are defined inside the main  environment
+%    only. Those environments can be used to specify the contents of
+%    the respective faces of the box.
+%
+%    Note that in the three-dimensional rendering will show at most
+%    three of the faces. It does not hurt to define all of them, even
+%    if they are not shown at all.
+%
+%    \DescribeEnv{FrontFace}
+%    The environment |FrontFace| is used to define the content of
+%    the font face. The environment processes its contents inside a
+%    |minipage| of the default width 88\,mm reduced by the left and
+%    right separator width (|faceSep|).
+%
+%    The minipage is centered vertically on the face.
+%    Usually anything extending the default height of 100\,mm is
+%    clipped.
+%
+%    \SampleEnv{FrontFace}
+%
+%    \DescribeEnv{BackFace}
+%    The environment |BackFace| is used to define the content of
+%    the back face. The environment processes its contents inside a
+%    |minipage| of the default width 88\,mm reduced by the left and
+%    right separator width (|faceSep|).
+%
+%    The minipage is centered vertically on the face.
+%    Usually anything extending the default height of 100\,mm is
+%    clipped.
+%
+%    \SampleEnv{BackFace}
+%
+%    \DescribeEnv{LeftFace}
+%    The environment |LeftFace| is used to define the content of
+%    the left face. The environment processes its contents inside a
+%    |minipage| of the default width 100\,mm reduced by the left and
+%    right separator width (|faceSep|).
+%
+%    The minipage is centered vertically on the face.
+%    Usually anything extending the default height of 30\,mm is
+%    clipped.
+%
+%    \SampleEnv{LeftFace}
+%
+%    \DescribeEnv{RightFace}
+%    The environment |RightFace| is used to define the content of
+%    the right face. The environment processes its contents inside a
+%    |minipage| of the default width 100\,mm reduced by the left and
+%    right separator width (|faceSep|).
+%
+%    The minipage is centered vertically on the face.
+%    Usually anything extending the default height of 30\,mm is
+%    clipped.
+%
+%    \SampleEnv{RightFace}
+%
+%    \DescribeEnv{TopFace}
+%    The environment |TopFace| is used to define the content of
+%    the top face. The environment processes its contents inside a
+%    |minipage| of the default width 88\,mm reduced by the left and
+%    right separator width (|faceSep|).
+%
+%    The minipage is centered vertically on the face.
+%    Usually anything extending the default height of 30\,mm is
+%    clipped.
+%
+%    \SampleEnv{TopFace}
+%
+%    \DescribeEnv{BottomFace}
+%    The environment |BottomFace| is used to define the content of
+%    the bottom face. The environment processes its contents inside a
+%    |minipage| of the default width 88\,mm reduced by the left and
+%    right separator width (|faceSep|).
+%
+%    The minipage is centered vertically on the face.
+%    Usually anything extending the default height of 30\,mm is
+%    clipped.
+%
+%    \SampleEnv{BottomFace}
+%
+%    \newcommand\Sample[1]{
+%    \noindent
+%    \fcolorbox{red!30!black}{yellow!30!white}{\begin{minipage}[b]{.8\textwidth}\footnotesize\tt
+%      \textcolor{blue}{\char92begin}\char123ProductBox\char125 \\
+%      \hspace*{2em}\textcolor{blue}{\char92begin}\char123FrontFace\char125\\
+%      \hspace*{4em}\textcolor{red}{[#1]}\\
+%      \hspace*{4em}...\\
+%      \hspace*{2em}\textcolor{blue}{\char92end}\char123FrontFace\char125\\
+%      \hspace*{2em}...\\
+%      \textcolor{blue}{\char92end}\char123ProductBox\char125
+%    \end{minipage}}\hfill
+%    \begin{minipage}[b]{.18\textwidth}\hfill
+%      \begin{ProductBox}[front,scale=.2]
+%        \begin{FrontFace}[#1] \end{FrontFace}
+%      \end{ProductBox}
+%    \end{minipage}\medskip\par
+%    }%
+%    Any of the face defining environments described above can take an
+%    optional argument. This argument is used to specify the
+%    background. In the simplest case you just have one background
+%    color. This is specified with the keyword |color|.
+%
+%    \Sample{color=yellow}
+%
+%    Colors in \TikZ{} are either one of the named colors or a
+%    composition of those colors. The notation |red!60!blue| denotes
+%    the color by mixing 60\% red and 40\% blue.
+%
+%    \Sample{color=red!60!blue}
+%
+%    By mixing in black or white you can come to a lighter or darker
+%    color.
+%
+%    \Sample{color=red!20!white}
+%
+%    A fading from top to bottom can be specified with two
+%    colors named |top color| and |bottom color|.
+%
+%    \Sample{top color=red!50!blue,bottom color=yellow}
+%
+%    A fading from left to right can be specified with two
+%    colors named |left color| and |left color|.
+%
+%    \Sample{left color=red!50!blue,right color=yellow}
+%
+%    The parameter |middle color| can be used in horizontal or
+%    vertical fading to specifying the color in the middle. Note thta
+%    it has to be specified after the other colors!
+%
+%    \Sample{top color=red,bottom color=yellow,middle color=blue}
+%
+%    A circular fading can be specified with the color names
+%    |inner color| and |outer color|.
+%
+%    \Sample{inner color=red,outer color=yellow}
+%
+%
+%    \subsection{The Extended User Interface}\label{sec:extended}
+%
+%    The extended user interface allows you to use all features of
+%    \TikZ. For this purpose another set of face defining environments
+%    is provided which process their content in a |tikzpicture|
+%    environment.
+%
+%    The following example shows a complete example of a product box
+%    with the extended user interface. This example is used below to
+%    demonstrate the effect of the differnt options.
+%
+%    \noindent
+%    {\advance\textwidth-\fboxsep \advance\textwidth-\fboxsep
+%    \advance\textwidth-\fboxrule \advance\textwidth-\fboxrule
+%    \setbox127\hbox\bgroup\begin{minipage}{.98\textwidth}\footnotesize\raggedright
+%    |\begin{ProductBox}\sf|\\
 %    |  \begin{Front}|\\
-%    |    \shade [bottom color=white!30!blue,top color=white]|\\
-%    |      (0mm,0mm) rectangle (88mm,100mm);|\\
-%    |    \draw (44mm,50mm) node{{\Huge Product Box}};|\\
+%    |    \fill [top color=white!30!blue,bottom color=white]|\\
+%    |      rectangle (88mm,100mm);|\\
+%    |    \fill [bottom color=white!40!blue,top color=white!90!blue]|\\
+%    |          (0mm,0mm) -- (44mm,90mm) -- (88mm,0mm) -- cycle;|\\
+%    |    \draw (44mm,40mm) node{\Huge Product Box};|\\
 %    |  \end{Front}|\\
 %    |  \begin{Back}|\\
-%    |    \shade [top color=yellow!30!red,bottom color=white]|\\
-%    |      (0mm,0mm) rectangle (88mm,100mm);|\\
-%    |    \draw (44mm,50mm) node{{\large Back}};|\\
+%    |    \fill [top color=yellow!30!red,bottom color=white]|\\
+%    |      rectangle (88mm,100mm);|\\
+%    |    \fill [top color=white,bottom color=blue]|\\
+%    |    (0mm,0mm) -- (88mm,100mm) -- (0mm,100mm) --cycle;|\\
+%    |    \draw (44mm,50mm) node{\large Back};|\\
 %    |  \end{Back}|\\
 %    |  \begin{Top}|\\
-%    |    \shade [outer color=white!30!red,inner color=white]|\\
-%    |      (0mm,0mm) rectangle (88mm,30mm);|\\
-%    |    \draw (44mm,15mm) node{{\large Top}};|\\
+%    |    \fill [outer color=white!30!red,inner color=white]|\\
+%    |      rectangle (88mm,30mm);|\\
+%    |    \draw[white,thick] (0mm,5mm) -- (88mm,25mm);|\\
+%    |    \draw (44mm,15mm) node{\large Top};|\\
 %    |  \end{Top}|\\
 %    |  \begin{Bottom}|\\
-%    |    \fill [outer color=red,inner color=black]|\\
-%    |      (0mm,0mm) rectangle (88mm,30mm);|\\
-%    |    \draw (44mm,15mm) node{{\large Bottom}};|\\
+%    |    \fill [outer color=red!30!white,inner color=black]|\\
+%    |      rectangle (88mm,30mm);|\\
+%    |    \draw[white] (44mm,15mm) node{\large Bottom};|\\
 %    |  \end{Bottom}|\\
 %    |  \begin{Left}|\\
 %    |    \fill [left color=green,right color=yellow]|\\
-%    |      (0mm,0mm) rectangle (30mm,100mm);|\\
-%    |    \draw (15mm,50mm) node{{\large Left}};|\\
+%    |      rectangle (30mm,100mm);|\\
+%    |    \draw (15mm,50mm) node{\large Left};|\\
 %    |  \end{Left}|\\
 %    |  \begin{Right}|\\
-%    |    \fill [left color=white,right color=black]|\\
-%    |      (0mm,0mm) rectangle (30mm,100mm);|\\
-%    |    \draw (15mm,50mm) node{{\large Right}};|\\
+%    |    \fill [top color=green,bottom color=yellow]|\\
+%    |      rectangle (30mm,100mm);|\\
+%    |    \draw (15mm,50mm) node{\large Right};|\\
 %    |  \end{Right}|\\
 %    |\end{ProductBox}|
-%    }
-%
-%    \def\sample[#1]{%
-%    \begin{ProductBox}[scale=.25,#1]
+%    \end{minipage}\egroup
+%    \fcolorbox{red!30!black}{yellow!30!white}{\box127}}
+%    \newcommand\sample[1]{%
+%    \begin{ProductBox}[scale=.25,#1]\sf
 %      \begin{Front}
-%        \shade [bottom color=white!30!blue,top color=white] (0mm,0mm) rectangle (88mm,100mm);
-%        \draw (44mm,50mm) node{{\Huge Product Box}};
+%        \fill [top color=white!30!blue,bottom color=white]
+%          rectangle (88mm,100mm);
+%        \fill [bottom color=white!40!blue,top color=white!90!blue]
+%              (0mm,0mm) -- (44mm,90mm) -- (88mm,0mm) -- cycle;
+%        \draw (44mm,40mm) node{\Huge Product Box};
 %      \end{Front}
 %      \begin{Back}
-%        \shade [top color=yellow!30!red,bottom color=white] (0mm,0mm) rectangle (88mm,100mm);
-%        \draw (44mm,50mm) node{{\large Back}};
+%        \fill [top color=blue,bottom color=white]
+%          rectangle (88mm,100mm);
+%        \fill [top color=white,bottom color=blue]
+%        (0mm,0mm) -- (88mm,100mm) -- (0mm,100mm) --cycle;
+%        \draw (44mm,50mm) node{\large Back};
 %      \end{Back}
 %      \begin{Top}
-%        \shade [outer color=white!30!red,inner color=white] (0mm,0mm) rectangle (88mm,30mm);
-%        \draw (44mm,15mm) node{{\large Top}};
+%        \fill [outer color=white!30!red,inner color=white]
+%          rectangle (88mm,30mm);
+%        \draw[white,thick] (0mm,5mm) -- (88mm,25mm);
+%        \draw (44mm,15mm) node{\large Top};
 %      \end{Top}
 %      \begin{Bottom}
-%        \fill [outer color=red,inner color=black] (0mm,0mm) rectangle (88mm,30mm);
-%        \draw (44mm,15mm) node{{\large Bottom}};
+%        \fill [outer color=red!30!white,inner color=black]
+%          rectangle (88mm,30mm);
+%        \draw[white] (44mm,15mm) node{\large Bottom};
 %      \end{Bottom}
 %      \begin{Left}
-%        \fill [left color=green,right color=yellow] (0mm,0mm) rectangle (30mm,100mm);
-%        \draw (15mm,50mm) node{{\large Left}};
+%        \fill [left color=green,right color=yellow]
+%          rectangle (30mm,100mm);
+%        \draw (15mm,50mm) node{\large Left};
 %      \end{Left}
 %      \begin{Right}
-%        \fill [left color=white,right color=black] (0mm,0mm) rectangle (30mm,100mm);
-%        \draw (15mm,50mm) node{{\large Right}};
+%        \fill [top color=green,bottom color=yellow]
+%          rectangle (30mm,100mm);
+%        \draw (15mm,50mm) node{\large Right};
 %      \end{Right}
 %    \end{ProductBox}%
 %    }
 %
-%    \newcommand\SampleEnv[1]{\noindent\par
-%    \fcolorbox{red!30!black}{yellow!30!white}{\begin{minipage}[b]{.98\textwidth}\footnotesize\tt
-%    \textcolor{blue}{\char92begin}\char123#1\char125\\
-%    \hspace*{2em}...\\
-%    \textcolor{blue}{\char92end}\char123#1\char125
-%    \end{minipage}}\par}
-%
-%    \subsection{Content of the Environment}
-%
-%    The content of the environment is simply evaluated. It can
-%    contain any code you like. Useful for the production of a product
-%    box are some inner environments. They are called \texttt{Front},
-%    \texttt{Back}, \texttt{Left}, \texttt{Right}, \texttt{Top}, and
-%    \texttt{Bottom}. They are defined inside the main 
+%    The content of the environment is simply expanded. It may contain
+%    any code you like -- except an |ProductBox| environment. Useful
+%    for the production of a product box are some inner environments.
+%    They are called |Front|, |Back|, |Left|, |Right|, |Top|, and
+%    |Bottom|. They are defined inside the main
 %    environment only. Those environments can be used to specify the
-%    contenzs of the respective faces of the box.
+%    contents of the respective faces of the box.
 %
 %    Note that in the three-dimensional rendering will show at most
-%    three of the faces. It doies not hurt to define all of them, even
+%    three of the faces. It does not hurt to define all of them, even
 %    if they are not shown at all.
 %
 %    \DescribeEnv{Front}
-%    The environment \texttt{Front} is used to define the content of
-%    the font face. The environment prosesses its contents inside a
-%    \texttt{tikzpikture} of the default size 88mm$\times$100mm.
+%    The environment |Front| is used to define the content of
+%    the font face. The environment processes its contents inside a
+%    |tikzpicture| of the default size 88\,mm$\times$100\,mm.
 %    Usually anything outside of this range is clipped.
 %
 %    \SampleEnv{Front}
 %
 %    \DescribeEnv{Back}
-%    The environment \texttt{Back} is used to define the content of
-%    the back face. The environment prosesses its contents inside a
-%    \texttt{tikzpikture} of the default size 88mm$\times$100mm.
+%    The environment |Back| is used to define the content of
+%    the back face. The environment processes its contents inside a
+%    |tikzpicture| of the default size 88\,mm$\times$100\,mm.
 %    Usually anything outside of this range is clipped.
 %
 %    \SampleEnv{Back}
 %
 %    \DescribeEnv{Left}
-%    The environment \texttt{Left} is used to define the content of
+%    The environment |Left| is used to define the content of
 %    the left face, i.e. the face left to the front page. The
-%    environment prosesses its contents inside a \texttt{tikzpikture}
-%    of the default size 30mm$\times$100mm. Usually anything outside
-%    of this range is clipped.
+%    environment processes its contents inside a |tikzpicture|
+%    of the default size 30\,mm$\times$100\,mm. Usually anything
+%    outside of this range is clipped.
 %
 %    \SampleEnv{Left}
 %
 %    \DescribeEnv{Right}
-%    The environment \texttt{Right} is used to define the content of
+%    The environment |Right| is used to define the content of
 %    the right face, i.e. the face right to the front page. The
-%    environment prosesses its contents inside a \texttt{tikzpikture}
-%    of the default size 30mm$\times$100mm. Usually anything outside of this
-%    range is clipped.
+%    environment processes its contents inside a |tikzpicture|
+%    of the default size 30\,mm$\times$100\,mm. Usually anything
+%    outside of this range is clipped.
 %
 %    \SampleEnv{Right}
 %
 %    \DescribeEnv{Top}
-%    The environment \texttt{Top} is used to define the content of the
-%    top face. The environment prosesses its contents inside a
-%    \texttt{tikzpikture} of the default size 88mm$\times$30mm. Usually
+%    The environment |Top| is used to define the content of the
+%    top face. The environment processes its contents inside a
+%    |tikzpicture| of the default size 88\,mm$\times$30\,mm. Usually
 %    anything outside of this range is clipped.
 %
 %    \SampleEnv{Top}
 %
 %    \DescribeEnv{Bottom}
-%    The environment \texttt{Bottom} is used to define the content of the
-%    top face. The environment prosesses its contents inside a
-%    \texttt{tikzpikture} of the default size 88mm$\times$30mm. Usually
+%    The environment |Bottom| is used to define the content of the
+%    top face. The environment processes its contents inside a
+%    |tikzpicture| of the default size 88\,mm$\times$30\,mm. Usually
 %    anything outside of this range is clipped.
 %
 %    \SampleEnv{Bottom}
 %
 %
-%    \subsection{Settings and Options of the Environment}
+%    \subsection{Settings and Options of the Main Environment}\label{sec:options}
 %
-%    The environment \texttt{ProductBox} can take some options to
+%    The environment |ProductBox| can take some options to
 %    influence the appearance of the product box. Those options are
 %    comma separated.
 %
@@ -395,13 +676,13 @@
 %    }}%
 %    \CODE{\textcolor{blue}{\char92begin}\char123ProductBox\char125[shape=3d]}
 %
-%    The settings are local to the environment. If an option is not
+%    The settings are local to the main environment. If an option is not
 %    set then the fallback from the global settings are used.
 %
 %    \DescribeMacro{\ProductBoxSet}
-%    The macro |\ProductBoxSet| modify the global setting of the
-%    product box style. The arguments are the same like the optional
-%    arguments of the environment \texttt{ProductBox} -- but enclosed
+%    The macro |\ProductBoxSet| modifies the global setting of the
+%    product box style. The arguments are the same as the optional
+%    arguments of the environment |ProductBox| -- but enclosed
 %    in braces instead of brackets.
 %
 %    \CODE{\char92ProductBoxSet\char123shape=3d\char125 }
@@ -409,9 +690,9 @@
 %    The following options can be used to influence the result of the product
 %    box.
 %
-%    \def\SAMPLE[#1]{
+%    \newcommand\SAMPLE[1]{
 %      \noindent
-%      \fcolorbox{red!30!black}{yellow!30!white}{\begin{minipage}[b]{.44\textwidth}\footnotesize\tt
+%      \fcolorbox{red!30!black}{yellow!30!white}{\begin{minipage}[b]{.45\textwidth}\footnotesize\tt\raggedright
 %      \def\x{#1}%
 %      \def\e{}%
 %      \textcolor{blue}{\char92begin}\char123ProductBox\char125 \ifx\x\e\else\textcolor{red}{[#1]}\fi\\
@@ -424,139 +705,328 @@
 %      \hspace*{2em}...\\
 %      \textcolor{blue}{\char92end}\char123ProductBox\char125
 %    \end{minipage}}\hfill
-%    \begin{minipage}[b]{.54\textwidth}\hfill
-%      \sample[#1]
+%    \begin{minipage}[b]{.53\textwidth}\hfill
+%      \sample{#1}
 %    \end{minipage}\medskip\par
 %    }%
 %
-%
 %    \DescribeMacro{style}
 %    The box style determines, how the box is drawn. Several rendering
 %    functions are provided to produce different effects. Any value is
-%    accepted. Nevertheless unknown box styles will lead to an error message.
+%    accepted. Unknown box styles will lead to an error message.
 %
-%    \SAMPLE[style=3D]
+%    \SAMPLE{style=3D}
 %
 %    \DescribeMacro{3D}
-%    The box style \texttt{3D} is the default. It produces a
-%    three-dimensional box rendering with a drop shadow. The option
-%    \texttt{3D} is an abbreviation for \texttt{style=3D}. It can also be
-%    written as \texttt{3d} or \texttt{3D}.
+%    The box style |3D| is the default. It produces a
+%    three-dimensional view of the box. The option |3D| is an
+%    abbreviation for |style=3D|. It can also be written as |3d| or
+%    |threeD|.
 %
-%    \SAMPLE[]
+%    \SAMPLE{}
 %
 %    \DescribeMacro{shadow}
-%    The option \texttt{shadow} controls the drawing of the drop shadow in the
+%    The option |shadow| controls the drawing of the drop shadow in the
 %    3D rendering. It is a boolean value taking the values |true| and
-%    |false|. The default value is  |true|.
+%    |false|. The default value is |true|.
 %
-%    The option \texttt{shadow} is the abbreviation for |shadow=true|.
+%    The option |shadow| is the abbreviation for |shadow=true|.
 %
-%    \SAMPLE[shadow=false]
+%    \SAMPLE{shadow=false}
 %
 %    \DescribeMacro{mirror}
-%    The option \texttt{mirror} controls the rendering of the mirror effect in
+%    The option |mirror| controls the rendering of the mirror effect in
 %    the 3D rendering. It is a boolean value taking the values |true| and
-%    |false|. The default value is  |false|.
+%    |false|. The default value is |false|.
 %
-%    The option \texttt{mirror} is the abbreviation for |mirror=true|.
+%    The option |mirror| is the abbreviation for |mirror=true|.
 %
-%    \SAMPLE[mirror=true]
+%    \SAMPLE{mirror=true}
 %
 %    \DescribeMacro{flare}
-%    The option \texttt{flare} controls the rendering of the flare effect in
-%    the 3D rendering. It is a boolean value taking the values |true| and
-%    |false|. The default value is  |false|.
+%    The option |flare| controls the rendering of the flare effect in
+%    the 3D~rendering. The flare is a circular relection of the light
+%    source in the upper right corner of the front face. The option is
+%    a boolean value taking the values |true| and |false|. The default
+%    value is |false|.
+%
+%    The option |flare| is the abbreviation for |flare=true|.
 %
-%    The option \texttt{flare} is the abbreviation for |flare=true|.
+%    \SAMPLE{flare=true}
 %
-%    \SAMPLE[flare=true]
+%    \DescribeMacro{flareDiameter}
+%    The option |flareDiameter| takes a dimension which defines the
+%    diameter of the flare effect in the 3D~rendering. The default
+%    value is 24\,mm.
+%
+%    \SAMPLE{flare=true, flareDiameter=60mm}
+%    
+%    Internally the 3D rendering uses a |tikzpicture|.  You can expand
+%    your own code either at the beginning or at the end of this
+%    environment. This can be achieved by overwriting a macro.
+%
+%    \DescribeMacro{ProductBoxThreeDStartHook}
+%    The macro |ProductBoxThreeDStartHook| contains code to be
+%    expanded at the beginning of the 3D rendering. Initially it is
+%    defined as empty.
+%
+%    \noindent
+%    \fcolorbox{red!30!black}{yellow!30!white}{\begin{minipage}[b]{.49\textwidth}\footnotesize\tt\raggedright
+%      \textcolor{blue}{\char92renewcommand}\char92ProductBoxThreeDStartHook\char123\\
+%      \hspace*{2em}\char92 filldraw[yscale=.4,\\
+%      \hspace*{6em} shift=\char123(30mm,4mm)\char125,\\
+%      \hspace*{6em} color=white,\\
+%      \hspace*{6em} inner color=white!70!blue,\\
+%      \hspace*{6em} outer color=white]\\
+%      \hspace*{4em} circle (120mm);\\
+%      \char125\\
+%      \textcolor{blue}{\char92begin}\char123ProductBox\char125\\
+%      \hspace*{2em}...\\
+%      \textcolor{blue}{\char92end}\char123ProductBox\char125
+%    \end{minipage}}\hfill\hspace*{-4pt}
+%    \begin{minipage}[b]{.5\textwidth}\hfill
+%      \renewcommand\ProductBoxThreeDStartHook{
+%        \filldraw[yscale=.4,
+%                  shift={(30mm,4mm)},
+%                  color=white,
+%                  inner color=white!80!blue,
+%                  outer color=white] circle (120mm);
+%      }
+%      \sample{}
+%    \end{minipage}\hspace*{-3pt}\medskip\par
+%
+%    \DescribeMacro{ProductBoxThreeDEndHook}
+%    The macro |ProductBoxThreeDEndHook| contains code to be
+%    expanded at the end of the 3D rendering. Initially it is
+%    defined as empty.
 %
 %    \DescribeMacro{fold}
-%    The option \texttt{fold} switches to the box style for rendering a
+%    The option |fold| switches to the box style for rendering a
 %    complete wire frame with all faces in place. The option
-%    \texttt{fold} is an abbreviation for \texttt{style=fold}.
+%    |fold| is an abbreviation for |style=fold|.
+%
+%    \SAMPLE{fold}
+%
+%    The top face is printed on the left and right top ear as well.
+%    This should avoid a break in the pattern when the box is
+%    partially opened. The same principle applis for the glue ear on
+%    the right side and the bottom.
+%
+%    The bottom is formed in a way to maiximize stability without the
+%    need to glue. In addition numbers are printed on the parts of the
+%    bottom indicating the sequence in which the parts should be
+%    closed.
+%
+%    \DescribeMacro{earSize}
+%    The option |earSize| takes a dimension which defines the
+%    width of the ears in the fold rendering. The ears around the top
+%    are this wide. The width of the glueing ear is half of this size.
+%    The default value is 12\,mm.
+%
+%    \SAMPLE{fold,earSize=30mm}
+%
+%    Note that the ear size must not exceed the width of the left
+%    face, the width of the front face, and the heiht of the box.
+%    Otherwise funny effects in the ears will happen.
 %
-%    \SAMPLE[fold]
+%    \DescribeMacro{foldLine}
+%    The option |foldLine| takes a specification for the line
+%    surrounding the fold drawing. Usally you want to simply use a
+%    color like ``gray'' or ``red''. The default is a kind of gray.
+%
+%    \SAMPLE{fold,foldLine=red}
+%
+%    \DescribeMacro{foldOpacity}
+%    The option |foldOpacity| takes a fraction for the opacity of the line
+%    surrounding the fold drawing. The default is |0.5|. If you want
+%    to let the fold lines disappear then use a value of 1.
+%
+%    \SAMPLE{fold,foldOpacity=0}
 %
 %    \DescribeMacro{front}
-%    The option \texttt{front} switches to the box style for rendering the
-%    front face only. The option \texttt{front} is an abbreviation for
-%    \texttt{style=front}.
+%    The option |front| switches to the box style for rendering the
+%    front face only. The option |front| is an abbreviation for
+%    |style=front|.
 %
-%    \SAMPLE[front]
+%    \SAMPLE{front}
 %
 %    \DescribeMacro{back}
-%    The option \texttt{back} switches to the box style for rendering the
-%    back face only. The option \texttt{back} is an abbreviation for
-%    \texttt{style=back}.
+%    The option |back| switches to the box style for rendering the
+%    back face only. The option |back| is an abbreviation for
+%    |style=back|.
 %
-%    \SAMPLE[back]
+%    \SAMPLE{back}
 %
 %    \DescribeMacro{left}
-%    The option \texttt{left} switches to the box style for rendering the
-%    back face only. The option \texttt{left} is an abbreviation for
-%    \texttt{style=left}.
+%    The option |left| switches to the box style for rendering the
+%    left face only. The option |left| is an abbreviation for
+%    |style=left|.
 %
-%    \SAMPLE[left]
+%    \SAMPLE{left}
 %
 %    \DescribeMacro{right}
-%    The option \texttt{right} switches to the box style for rendering the
-%    back face only. The option \texttt{right} is an abbreviation for
-%    \texttt{style=right}.
+%    The option |right| switches to the box style for rendering the
+%    right face only. The option |right| is an abbreviation for
+%    |style=right|.
 %
-%    \SAMPLE[right]
+%    \SAMPLE{right}
 %
 %    \DescribeMacro{top}
-%    The option \texttt{top} switches to the box style for rendering the
-%    back face only. The option \texttt{top} is an abbreviation for
-%    \texttt{style=top}.
+%    The option |top| switches to the box style for rendering the
+%    top face only. The option |top| is an abbreviation for
+%    |style=top|.
 %
-%    \SAMPLE[top]
+%    \SAMPLE{top}
 %
 %    \DescribeMacro{bottom}
-%    The option \texttt{bottom} switches to the box style for rendering the
-%    back face only. The option \texttt{bottom} is an abbreviation for
-%    \texttt{style=bottom}.
+%    The option |bottom| switches to the box style for rendering the
+%    face only. The option |bottom| is an abbreviation for
+%    |style=bottom|.
+%
+%    \SAMPLE{bottom}
 %
-%    \SAMPLE[bottom]
+%    \DescribeMacro{empty}
+%    The option |empty| switches to the box style for not rendering
+%    the box at all. The option |empty| is an abbreviation for
+%    |style=empty|.
+%
+%    \SAMPLE{empty}
 %
 %    \DescribeMacro{scale}
-%    The option \texttt{scale} controlls the scaling of the whole rendering.
+%    The option |scale| controlls the scaling of the whole rendering.
 %    It is a number where 1. represents the original size.\footnote{The
 %    examples on the right side are normally rendered with a scale of 0.25.}
 %
-%    \SAMPLE[scale=.1]
+%    \SAMPLE{scale=.1}
 %
 %    \DescribeMacro{view}
 %    The option |view| takes a name of a view definition and activates
 %    the appropriate settings. A few views are predefined. The default
 %    value is |1|.
 %
-%    \SAMPLE[view=1]
+%    \SAMPLE{view=1}
+%
+%    \SAMPLE{view=2}
+%
+%    \SAMPLE{view=3}
 %
-%    \SAMPLE[view=2]
+%    \DescribeMacro{edgeColor}
+%    The option |edgeColor| takes a color specification for
+%    highlighting the inner edges in the 3D rendering.
 %
-%    \SAMPLE[view=3]
+%    \DescribeMacro{faceSep}
+%    The option |faceSep| takes a dimension denoting the additional
+%    separating whitespace between the outer border and the minipage
+%    in the simplified interface.
 %
 %    \DescribeMacro{width}
-%    The option |width| takes a dimension denoting the width of the box. The
-%    default value is 88mm.
+%    The option |width| takes a dimension denoting the width of the
+%    box. The default value is 88\,mm.
 %
 %    \DescribeMacro{height}
-%    The option |height| takes a dimension denoting the height of the box. The
-%    default value is 100mm.
+%    The option |height| takes a dimension denoting the height of the
+%    box. The default value is 100\,mm.
 %
 %    \DescribeMacro{depth}
-%    The option |depth| takes a dimension denoting the depth of the box. The
-%    default value is 30mm.
+%    The option |depth| takes a dimension denoting the depth of the
+%    box. The default value is 30\,mm.
+%
+%    \DescribeMacro{clean}
+%    The option |clean| controlls the cleaning of the stored faces
+%    upon entering the main environment. If it is turned off then the
+%    previously defined faces are still present and do not need to be
+%    defined again. It is a boolean value taking the values |true| and
+%    |false|. The default value is |true|.
+%
+%    This option can be used to typeset the same product box with
+%    differnt parameters. For this purpose the main environment
+%    |ProductBox| is left empty and the option |clean=false| is added.
 %
 %    \DescribeMacro{clip}
-%    The option \texttt{clip} controls the clipping of the faces to their
+%    The option |clip| controls the clipping of the faces to their
 %    defined size. If it is turned off then the faces can be oversized
 %    leading to strange effects. It is a boolean value taking the
 %    values |true| and |false|. The default value is |true|.
 %
+%    \section{Tipps and Tricks}
+%
+%    \subsection{Adjusting the Paper for the Fold Rendering}
+%
+%    When you produce the fold rendering it is usually meant to be cut
+%    out and glued together. This means that the normal rules for the
+%    paper layout are not relevant. Instead you want to use the
+%    complete page for printing the product box.
+%    Below an example is shown how this goal can be achieved.
+%
+%    \noindent
+%    {\advance\textwidth-\fboxsep \advance\textwidth-\fboxsep
+%    \advance\textwidth-\fboxrule \advance\textwidth-\fboxrule
+%    \setbox127\hbox\bgroup\begin{minipage}{.98\textwidth}\raggedright\footnotesize\tt
+%    |\documentclass{|\textcolor{red}{\tt report}|}|\\
+%    |\usepackage[|\textcolor{red}{a4paper}|,|\\
+%    |            landscape,|\\
+%    |            left=|\textcolor{red}{5mm}|,|\\
+%    |            right=|\textcolor{red}{5mm}|,|\\
+%    |            top=|\textcolor{red}{5mm}|,|\\
+%    |            bottom=|\textcolor{red}{5mm}|]{geometry}|\\
+%    |\usepackage{productbox}|\\
+%    \textcolor{green}{\itshape\% load any required packages here}\\
+%    |\pagestyle{empty}|\\
+%    |\begin{document}|\\
+%    |\noindent|\\
+%    |\begin{ProductBox}[style=fold]|\\
+%    |  |\textcolor{green}{\itshape\% include any definitions for the faces here}\\
+%    |\end{ProductBox}|\\
+%    |\end{document}|\\
+%    \end{minipage}\egroup
+%    \fcolorbox{red!30!black}{yellow!30!white}{\box127}}
+%
+%    The class for typesetting this example is |report|. This can be
+%    changed to suit your needs. For instance if you are used to a
+%    document class with other macros and environments predefined you
+%    can just use it instead.
+%
+%    The example above uses the package |geometry|
+%    \cite{geormetry-manual} to get rid of any predefined page layout.
+%    Some parameters (marked in red) can be adjusted. First of all is
+%    the paper definition. Here the value  |a4paper| is used. If you
+%    want to print onto paper of a different size just use an
+%    appropriate short name like |letterpaper| or |a3paper|. See the
+%    documentation of the geometry package for a complete list of
+%    values.
+%
+%    The values |left|, |right|, |top|, and |bottom| denote the
+%    margins left on the respective outer side of the paper. They are
+%    set to 5\,mm in this example to cope with the problem that some
+%    printers are not able to fill the complete page. They might need
+%    a small non-printable area at the borders. You can experiment and
+%    adjust those values to whatever suits your printer.
+%
+%    \section{Known Problems}
+%
+%    This section lists some issues which might lead to undesirable
+%    results.
+%
+%    \begin{description}
+%    \item[Nested |ProductBox| environments.] The definition of the
+%    environment uses some global storage. As a consequence the
+%    environment |ProductBox| can not be used inside the definition of
+%    a face. For instance if you want to show a product box on a side
+%    of another product box can lead to this problem.
+%
+%    In this case you can simply store the inner product box in a box
+%    register (with |setbox|) and use this bos register instead of a
+%    direct rendering. This will overcome the restriction.
+%
+%    \item[Free selection of the point of view.] The 3D rendering is
+%    rather limited in the possibilities of selecting the view.
+%    Arbitrary rotation about any axis is not implemented (yet). This
+%    is on the which list for a future release already.
+%    \end{description}
+%
+%
+%    \bibliographystyle{alpha}
+%    \bibliography{productbox}
 %
 %    \StopEventually
 %
@@ -569,24 +1039,26 @@
 %
 %    The documentation can be adapted in a file named productbox.dcf
 %    (documentation configuration). This file can contain instructions
-%    for |docstrip|. Especially useful might be the instruction 
+%    for |docstrip|. Especially useful might be the instruction
 %
 %    |\OnlyDescription|
 %
-%    which supresses the generation of the implementation description.
+%    which suppresses the generation of the implementation description.
 %
 %    \begin{macrocode}
 %<*driver>
 \documentclass{ltxdoc}
-\InputIfFileExists{productbox.dcf}{}{}
 \usepackage{productbox}
-\usepackage{moreverb}
+\usepackage[colorlinks,citecolor=blue]{hyperref}
+\usepackage{graphicx,color}
 \RecordChanges
 \EnableCrossrefs
 \CodelineIndex
-\setcounter{IndexColumns}2
+\definecolor{darkblue}{rgb}{.4,.4,1.}
+\renewcommand\MacroFont{\tt\footnotesize\color{darkblue}}
 \parindent=0pt
 \parskip=1ex plus .5ex minus .25ex
+\InputIfFileExists{productbox.dcf}{}{}
 \begin{document}
 \DocInput{productbox.dtx}
 \end{document}
@@ -600,240 +1072,339 @@
 %    \subsection{The Version Information}
 %
 %    The following lines define the version information for the class
-%    file. 
+%    file. The information is partially taken from the version control
+%    system (Subversion).
 %
 %    \begin{macrocode}
-%<*class>
+%<*style>
 \begingroup
   \def\ProductBox@VC$#1: #2 #3${#2}
   \def\ProductBox@VCdate$#1: #2-#3-#4 #5${#2/#3/#4}
-  \xdef\fileversion{1.0}
-  \xdef\filerevision{\ProductBox@VC$Revision: 8332 $}
-  \xdef\filedate{\ProductBox@VCdate$Date: 2010-12-20 23:22:36 +0100 (Mo, 20 Dez 2010) $}
+  \xdef\fileversion{1.1}
+  \xdef\filerevision{\ProductBox@VC$Revision: 8333 $}
+  \xdef\filedate{\ProductBox@VCdate
+    $Date: 2010-12-29 20:58:06 +0100 (Mi, 29 Dez 2010) $}
   \xdef\filename{productbox.dtx}
 \endgroup
-\let\docversion=\fileversion
-\let\docdate=\filedate
-%</class>
+%</style>
 %    \end{macrocode}
 %
 %
 %    \subsection{Getting Started}
 %
 %    First we have to determine that the right kind of \LaTeX{} is
-%    running and identify style file.
-%    
+%    running and identify the style file.
+%
 %    \begin{macrocode}
-%<*class>
+%<*style>
 \NeedsTeXFormat{LaTeX2e}
 \ProvidesPackage{productbox}[\filedate Another type of boxes...]
 %    \end{macrocode}
 %
-%   A bunch of packages is loaded to form the base of the work herein. 
+%   A bunch of packages is loaded to form the base of the work herein.
 %    \begin{macrocode}
 \RequirePackage{keyval}
-\RequirePackage{pgf}
 \RequirePackage{tikz}
 \usetikzlibrary{calc}
 \usetikzlibrary{fadings}
 %    \end{macrocode}
 %
-%    \subsection{Parameters}
+%    \subsection{Option Declarations}
 %
-%    The parameters are stored to be used later. Here the built-in defaults
-%    are defined.
+%    Define the parameters for the keyval package. They are used in
+%    the main environemnt |Product Box| and in the declaration of
+%    global options |\ProductBoxSet|.
 %
-%    The boolean \texttt{ProductBox@shadow} determines whether or not the
-%    shadow in the 3d rendering is shown.
+%    \subsubsection{General Parameters}
 %    \begin{macrocode}
-\newif\ifProductBox@shadow\ProductBox@shadowtrue
+\define@key{ProductBox}{scale}{%
+  \def\ProductBox@scale{#1}}
+\define@key{ProductBox}{width}{%
+  \def\ProductBox@x{#1}}
+\define@key{ProductBox}{height}{%
+  \def\ProductBox@y{#1}}
+\define@key{ProductBox}{depth}{%
+  \def\ProductBox@z{#1}}
+\define@key{ProductBox}{clean}[true]{%
+  \csname ProductBox@clean#1\endcsname}
 %    \end{macrocode}
 %
-%    The boolean \texttt{ProductBox@mirror} determines whether or not the
-%    mirror effect in the 3d rendering is shown.
+%    \subsubsection{Box Style Parameters}
 %    \begin{macrocode}
-\newif\ifProductBox@mirror
+\define@key{ProductBox}{flat}[true]{%
+  \def\ProductBox@style{flat}}
+\define@key{ProductBox}{fold}[true]{%
+  \def\ProductBox@style{fold}}
+\define@key{ProductBox}{3d}[true]{%
+  \def\ProductBox@style{threeD}}
+\define@key{ProductBox}{3D}[true]{%
+  \def\ProductBox@style{threeD}}
+\define@key{ProductBox}{threeD}[true]{%
+  \def\ProductBox@style{threeD}}
+\define@key{ProductBox}{top}[true]{%
+  \def\ProductBox@style{top}}
+\define@key{ProductBox}{bottom}[true]{%
+  \def\ProductBox@style{bottom}}
+\define@key{ProductBox}{front}[true]{%
+  \def\ProductBox@style{front}}
+\define@key{ProductBox}{back}[true]{%
+  \def\ProductBox@style{back}}
+\define@key{ProductBox}{left}[true]{%
+  \def\ProductBox@style{left}}
+\define@key{ProductBox}{right}[true]{%
+  \def\ProductBox@style{right}}
+\define@key{ProductBox}{empty}[true]{%
+  \def\ProductBox@style{empty}}
+\define@key{ProductBox}{style}{%
+  \def\ProductBox@style{#1}}
 %    \end{macrocode}
 %
-%    The boolean \texttt{ProductBox@flare} determines whether or not the
-%    flare effect in the 3d rendering is shown.
+%    \subsubsection{Parameters for the 3D Rendering}
 %    \begin{macrocode}
-\newif\ifProductBox@flare
+\define@key{ProductBox}{shadow}[true]{%
+  \csname ProductBox@shadow#1\endcsname}
+\define@key{ProductBox}{mirror}[true]{%
+  \csname ProductBox@mirror#1\endcsname}
+\define@key{ProductBox}{flare}[true]{%
+  \csname ProductBox@flare#1\endcsname}
+\define@key{ProductBox}{flareDiameter}{%
+  \def\ProductBox@flareDiameter{#1}}
+\define@key{ProductBox}{edgeColor}{%
+  \def\productBox@edgeColor{#1}}
+\define@key{ProductBox}{view}{%
+  \@nameuse{ProductBox@View@#1}}
 %    \end{macrocode}
 %
-%    The boolean \texttt{ProductBox@clip} determines whether or not the
-%    additional clipping of the boxes should be enabled.
+%    \subsubsection{Parameters for the Fold Rendering}
 %    \begin{macrocode}
-\newif\ifProductBox@clip\ProductBox@cliptrue
+\define@key{ProductBox}{earSize}{%
+  \def\ProductBox@earSize{#1}}
+\define@key{ProductBox}{foldLine}{%
+  \def\ProductBox@foldLine{#1}}
+\define@key{ProductBox}{foldOpacity}{%
+  \def\ProductBox@foldOpacity{#1}}
 %    \end{macrocode}
 %
-%   The edge color in the 3D rendering.
+%    \subsubsection{Parameters for the Simplified Interface}
 %    \begin{macrocode}
-\newcommand\ProductBox@edgeColor{white}
+\define@key{ProductBox}{faceSep}{%
+  \def\ProductBox@FaceSep{#1}}
 %    \end{macrocode}
 %
-%   The background color for the mirror effect.
-%    \begin{macrocode}
-\newcommand\ProductBox@bgColor{white}
-%    \end{macrocode}
+%    \subsection{Storage for the Faces}
 %
-%   The default style is the 3D rendering.
+%    \begin{macro}{\ProductBox@Front}
+%    The box |\ProductBox@Front| contains the front material.
 %    \begin{macrocode}
-\newcommand\ProductBox@style{threeD}
+\newbox\ProductBox@Front
 %    \end{macrocode}
+%    \end{macro}
 %
-%   A hook to add some code at the beginning.
+%    \begin{macro}{\ProductBox@Left}
+%    The box |\ProductBox@Left| contains the left material.
 %    \begin{macrocode}
-\newcommand\ProductBox@startOptions{}
+\newbox\ProductBox@Left
 %    \end{macrocode}
+%    \end{macro}
 %
-%   A hook to add some code at the end.
+%    \begin{macro}{\ProductBox@Top}
+%    The box |\ProductBox@Top| contains the top material.
 %    \begin{macrocode}
-\newcommand\ProductBox@endOptions{}
+\newbox\ProductBox@Top
 %    \end{macrocode}
+%    \end{macro}
 %
-%   The color of the additional lines in the fol rendering.
+%    \begin{macro}{\ProductBox@Right}
+%    The box |\ProductBox@Right| contains the right material.
 %    \begin{macrocode}
-\newcommand\ProductBox@foldLine{white!80!black}
+\newbox\ProductBox@Right
 %    \end{macrocode}
+%    \end{macro}
 %
-%   The diameter of the flare.
+%    \begin{macro}{\ProductBox@Bottom}
+%    The box |\ProductBox@Bottom| contains the bottom material.
 %    \begin{macrocode}
-\newcommand\ProductBox@flareDiameter{24mm}
+\newbox\ProductBox@Bottom
 %    \end{macrocode}
+%    \end{macro}
 %
-%   The width of the box.
+%    \begin{macro}{\ProductBox@Back}
+%    The box |\ProductBox@Back| contains the back material.
 %    \begin{macrocode}
-\newcommand\ProductBox@x{88mm}
+\newbox\ProductBox@Back
 %    \end{macrocode}
+%    \end{macro}
 %
-%   The height of the box.
-%    \begin{macrocode}
-\newcommand\ProductBox@y{100mm}
-%    \end{macrocode}
+%    \subsection{Settings}
 %
-%   The depth of the box.
+%    \begin{macro}{\ProductBoxSet}
+%    The macro |\ProductBoxSet| defines the global parameters used by
+%    the environment |ProductBox|. They can be overwritten either
+%    within a group or in the optional parameter of the environment.
 %    \begin{macrocode}
-\newcommand\ProductBox@z{30mm}
-%    \end{macrocode}
-%
-%    Define the parameters for the keyval package.
-%    \begin{macrocode}
-\define@key{ProductBox}{flat}[true]{\def\ProductBox@style{flat}}
-\define@key{ProductBox}{fold}[true]{\def\ProductBox@style{fold}}
-\define@key{ProductBox}{3d}[true]{\def\ProductBox@style{threeD}}
-\define@key{ProductBox}{3D}[true]{\def\ProductBox@style{threeD}}
-\define@key{ProductBox}{threeD}[true]{\def\ProductBox@style{threeD}}
-\define@key{ProductBox}{top}[true]{\def\ProductBox@style{top}}
-\define@key{ProductBox}{bottom}[true]{\def\ProductBox@style{bottom}}
-\define@key{ProductBox}{front}[true]{\def\ProductBox@style{front}}
-\define@key{ProductBox}{back}[true]{\def\ProductBox@style{back}}
-\define@key{ProductBox}{left}[true]{\def\ProductBox@style{left}}
-\define@key{ProductBox}{right}[true]{\def\ProductBox@style{right}}
-\define@key{ProductBox}{style}{\def\ProductBox@style{#1}}
-\define@key{ProductBox}{shadow}[true]{%
-  \csname ProductBox@shadow#1\endcsname}
-\define@key{ProductBox}{mirror}[true]{%
-  \csname ProductBox@mirror#1\endcsname}
-\define@key{ProductBox}{flare}[true]{%
-  \csname ProductBox@flare#1\endcsname}
-\define@key{ProductBox}{edgeColor}{\def\productBox@edgeColor{#1}}
-\define@key{ProductBox}{backgroundColor}{\def\ProductBox@bgColor{#1}}
-\define@key{ProductBox}{scale}{\def\ProductBox@scale{#1}}
-\define@key{ProductBox}{width}{\def\ProductBox@x{#1}}
-\define@key{ProductBox}{height}{\def\ProductBox@y{#1}}
-\define@key{ProductBox}{depth}{\def\ProductBox@z{#1}}
-\define@key{ProductBox}{flareDiameter}{%
-  \def\ProductBox@flareDiameter{#1}}
-\define@key{ProductBox}{view}{\@nameuse{ProductBox@View@#1}}
+\newcommand\ProductBoxSet[1]{\setkeys{ProductBox}{#1}}
 %    \end{macrocode}
+%    \end{macro}
 %
-%    \subsection{Internal Storage}
+%    \subsection{The Main Environment}
 %
-%    The box |\ProductBox@Front| contains the front material.
+%    \begin{macro}{\ProductBox@style}
+%    The default style is the 3D rendering.
 %    \begin{macrocode}
-\newbox\ProductBox@Front
+\newcommand\ProductBox@style{threeD}
 %    \end{macrocode}
+%    \end{macro}
 %
-%    The box |\ProductBox@Left| contains the left material.
+%    \begin{macro}{\ProductBox@x}
+%    The width of the box.
 %    \begin{macrocode}
-\newbox\ProductBox@Left
+\newcommand\ProductBox@x{88mm}
 %    \end{macrocode}
+%    \end{macro}
 %
-%    The box |\ProductBox@Top| contains the top material.
+%    \begin{macro}{\ProductBox@y}
+%    The height of the box.
 %    \begin{macrocode}
-\newbox\ProductBox@Top
+\newcommand\ProductBox@y{100mm}
 %    \end{macrocode}
+%    \end{macro}
 %
-%    The box |\ProductBox@Right| contains the right material.
+%    \begin{macro}{\ProductBox@z}
+%    The depth of the box.
 %    \begin{macrocode}
-\newbox\ProductBox@Right
+\newcommand\ProductBox@z{30mm}
 %    \end{macrocode}
+%    \end{macro}
 %
-%    The box |\ProductBox@Bottom| contains the bottom material.
+%    \begin{macro}{ifProductBox@clean}
+%    Indicator that the boxes for the faces should be cleaned.
 %    \begin{macrocode}
-\newbox\ProductBox@Bottom
+\newif\ifProductBox@clean
 %    \end{macrocode}
+%    \end{macro}
 %
-%    The box |\ProductBox@Back| contains the back material.
+%    \begin{macro}{ifProductBox@active}
+%    Indicator that we are inside a |ProductBox| environment already.
 %    \begin{macrocode}
-\newbox\ProductBox@Back
+\newif\ifProductBox@active
 %    \end{macrocode}
+%    \end{macro}
 %
-%    \subsection{Settings}
-%
-%    \begin{macro}{\ProductBoxSet}
-%    The macro |\ProductBoxSet| defines the global parameters used by
-%    the environment |ProductBox|. They can be overwritten either
-%    within a group or in the optional parameter of the environment.
+%    \begin{macro}{ifProductBox@clip}
+%    The boolean |ProductBox@clip| determines whether or not the
+%    additional clipping of the boxes should be enabled.
 %    \begin{macrocode}
-\newcommand\ProductBoxSet[1]{\setkeys{ProductBox}{#1}}
+\newif\ifProductBox@clip \ProductBox@cliptrue
 %    \end{macrocode}
 %    \end{macro}
 %
-%    \subsection{The Main Environment}
+%    \begin{macro}{\ProductBox@FaceSep}
+%    The horizontal separator of the minipage in the face definitions
+%    in the simplified interface.
+%    \begin{macrocode}
+\newcommand\ProductBox@FaceSep{1em}
+%    \end{macrocode}
+%    \end{macro}
 %
 %    \begin{environment}{ProductBox}
 %    This is the central environment provided by this style. In the begin code
 %    only the local environments are initialized and the optional parameters
-%    are evaluated with the help of the package keyval.
+%    are evaluated with the help of the package |keyval|.
 %    \begin{macrocode}
 \newenvironment{ProductBox}[1][]{%
   \setkeys{ProductBox}{#1}%
-  %
-  \def\Left{\ProductBox@Start\ProductBox@Left
-    (\ProductBox@z,\ProductBox@y)}%
-  \let\endLeft\ProductBox@end
-  \def\Front{\ProductBox@Start\ProductBox@Front
-    (\ProductBox@x,\ProductBox@y)}%
-  \let\endFront\ProductBox@end
-  \def\Top{\ProductBox@Start\ProductBox@Top
-    (\ProductBox@x,\ProductBox@z)}%
-  \let\endTop\ProductBox@end
-  \def\Bottom{\ProductBox@Start\ProductBox@Bottom(
-    \ProductBox@x,\ProductBox@z)}%
-  \let\endBottom\ProductBox@end
-  \def\Back{\ProductBox@Start\ProductBox@Back
-    (\ProductBox@x,\ProductBox@y)}%
-  \let\endBack\ProductBox@end
-  \def\Right{\ProductBox@Start\ProductBox@Right
-    (\ProductBox@z,\ProductBox@y)}%
-  \let\endRight\ProductBox@end
+%    \end{macrocode}
+%
+%    Next we clean the faces if this is required.
+%    \changes{1.1}{2010/12/27}{Do not clean the faces upon request.}
+%    \begin{macrocode}
+  \ifProductBox@clean
+    \global\setbox\ProductBox@Front\hbox{}%
+    \global\setbox\ProductBox@Back\hbox{}%
+    \global\setbox\ProductBox@Left\hbox{}%
+    \global\setbox\ProductBox@Right\hbox{}%
+    \global\setbox\ProductBox@Top\hbox{}%
+    \global\setbox\ProductBox@Bottom\hbox{}%
+  \fi
+%    \end{macrocode}
+%
+%    Next we define the local environments to make sure that they have
+%    the proper definitions within this environment. Since the
+%    environment provides an implicit group, the definitions are local
+%    to this environment.
+%
+%    To suppress any error messages about environments which are
+%    already defined the start macros are reset to undefined.
+%    \changes{1.1}{2010/12/23}{Simplified user interface added.}
+%    \changes{1.1}{2010/12/25}{Suppress error messages.}
+%    \changes{1.1}{2010/12/26}{Issue an error message for nested
+%    ProductBox environments.}
+%    \begin{macrocode}
+  \ifProductBox@active
+    \errmessage{Trying to use an environment ProductBox inside the
+      environment ProductBox. This is not allowed.}%
+  \else
+    \ProductBox@activetrue
+  \fi
+  \let\Front\undefined            \let\endFront\undefined
+  \let\Back\undefined             \let\endBack\undefined
+  \let\Left\undefined             \let\endLeft\undefined
+  \let\Right\undefined            \let\endRight\undefined
+  \let\Top\undefined              \let\endTop\undefined
+  \let\Bottom\undefined           \let\endBottom\undefined
+  \let\FrontFace\undefined        \let\endFrontFace\undefined
+  \let\BackFace\undefined         \let\endBackFace\undefined
+  \let\LeftFace\undefined         \let\endLeftFace\undefined
+  \let\RightFace\undefined        \let\endRightFace\undefined
+  \let\TopFace\undefined          \let\endTopFace\undefined
+  \let\BottomFace\undefined       \let\endBottomFace\undefined
+  \newenvironment{Front}{\ProductBox@Start\ProductBox@Front
+    (\ProductBox@x,\ProductBox@y)}{\ProductBox@End}%
+  \newenvironment{Back}{\ProductBox@Start\ProductBox@Back
+    (\ProductBox@x,\ProductBox@y)}{\ProductBox@End}%
+  \newenvironment{Left}{\ProductBox@Start\ProductBox@Left
+    (\ProductBox@z,\ProductBox@y)}{\ProductBox@End}%
+  \newenvironment{Right}{\ProductBox@Start\ProductBox@Right
+    (\ProductBox@z,\ProductBox@y)}{\ProductBox@End}%
+  \newenvironment{Top}{\ProductBox@Start\ProductBox@Top
+    (\ProductBox@x,\ProductBox@z)}{\ProductBox@End}%
+  \newenvironment{Bottom}{\ProductBox@Start\ProductBox@Bottom(
+    \ProductBox@x,\ProductBox@z)}{\ProductBox@End}%
+  \newenvironment{FrontFace}[1][white]{\ProductBox@StartFace\ProductBox@Front
+    {\ProductBox@x}{\ProductBox@y}{##1}}{\ProductBox@EndFace}%
+  \newenvironment{BackFace}[1][white]{\ProductBox@StartFace\ProductBox@Back
+    {\ProductBox@x}{\ProductBox@y}{##1}}{\ProductBox@EndFace}%
+  \newenvironment{LeftFace}[1][white]{\ProductBox@StartFace\ProductBox@Left
+    {\ProductBox@z}{\ProductBox@y}{##1}}{\ProductBox@EndFace}%
+  \newenvironment{RightFace}[1][white]{\ProductBox@StartFace\ProductBox@Right
+    {\ProductBox@z}{\ProductBox@y}{##1}}{\ProductBox@EndFace}%
+  \newenvironment{TopFace}[1][white]{\ProductBox@StartFace\ProductBox@Top
+    {\ProductBox@x}{\ProductBox@z}{##1}}{\ProductBox@EndFace}%
+  \newenvironment{BottomFace}[1][white]{\ProductBox@StartFace\ProductBox@Bottom
+    {\ProductBox@x}{\ProductBox@z}{##1}}{\ProductBox@EndFace}%
   \ignorespacesafterend
-}{%---
+}{%
 %    \end{macrocode}
-%    The main activity is performed in the end code. Since the flexibility of
-%    the environment is one of its design goals, the expansion of the macro
-%    |\ProductBo@style| is used to invoke the macro storen in it.
+%    Check that the box style is defined or issue an appropriate error
+%    message.
 %    \begin{macrocode}
   \@ifundefined{ProductBox@style@\ProductBox@style}{%
-    \errmessage{Style '\ProductBox@style' for ProductBox is unknown}%
+    \errmessage{Box style '\ProductBox@style' for ProductBox is unknown}%
   }{%
+%    \end{macrocode}
+%    The main activity is performed in the end code. Since the
+%    flexibility of the environment is one of its design goals, the
+%    expansion of the macro |\ProductBox@style| is used to invoke the
+%    macro stored in it. Optionally it is enclosed in a |\scalebox|
+%    macro to perform the scaling. Thus the implementations of the box
+%    styles do not need to care about scaling at all. 
+%    \begin{macrocode}
     \@ifundefined{ProductBox@scale}{%
       \@nameuse{ProductBox@style@\ProductBox@style}}{%
       \scalebox{\ProductBox@scale}%
                {\@nameuse{ProductBox@style@\ProductBox@style}}
     }}%
+  \ProductBox@activefalse
   \ignorespacesafterend
 }
 %    \end{macrocode}
@@ -844,21 +1415,61 @@
 %    \begin{macrocode}
 \def\ProductBox@Start#1(#2){%
   \global\setbox#1\hbox\bgroup\begin{tikzpicture}%
-    \ifProductBox@clip \clip (0,0) rectangle (#2); \fi
-    \ignorespaces
+    \ifProductBox@clip \clip rectangle (#2); \fi
   }%
 %    \end{macrocode}
 %    \end{macro}
 %
-%    \begin{macro}{\ProductBox@end}
-%    The macro |\ProductBox@end| ends the environment storing a face.
+%    \begin{macro}{\ProductBox@End}
+%    The macro |\ProductBox@End| ends the environment storing a face.
+%    \begin{macrocode}
+\newcommand\ProductBox@End{\end{tikzpicture}\egroup\ignorespacesafterend}
+%    \end{macrocode}
+%    \end{macro}
+%
+%    \begin{macro}{\ProductBox@StartFace}
+%    The macro |\ProductBox@StartFace| starts the environment storing
+%    a face in a minipage.
+%    \begin{macrocode}
+\newcommand\ProductBox@StartFace[4]{%
+  \let\ProductBox@@box#1%
+  \def\ProductBox@@w{#2}%
+  \def\ProductBox@@h{#3}%
+  \def\ProductBox@@args{[#4]}%
+  \@tempdima=#2
+  \advance\@tempdima-\ProductBox@FaceSep
+  \advance\@tempdima-\ProductBox@FaceSep
+  \setbox#1\hbox\bgroup\begin{minipage}{\the\@tempdima}%
+    \ignorespaces
+}
+%    \end{macrocode}
+%    \end{macro}
+%
+%    \begin{macro}{\ProductBox@EndFace}
+%    This macro ends a face definition and stores the result in the
+%    internal box |\ProductBox@@box|.
 %    \begin{macrocode}
-\def\ProductBox@end{\end{tikzpicture}\egroup \ignorespacesafterend}
+\newcommand\ProductBox@EndFace{\end{minipage}\egroup
+    \global\setbox\ProductBox@@box=\hbox{\begin{tikzpicture}
+    \ifProductBox@clip \clip rectangle (\ProductBox@@w,\ProductBox@@h); \fi
+    \expandafter\fill \ProductBox@@args rectangle(\ProductBox@@w,\ProductBox@@h);
+    \draw (.5*\ProductBox@@w,.5*\ProductBox@@h)
+      node[inner sep=0pt] {\box\ProductBox@@box};
+    \end{tikzpicture}}\ignorespacesafterend}
 %    \end{macrocode}
 %    \end{macro}
 %
 %    \subsection{Box Styles}
 %
+%    \begin{macro}{\ProductBox@style@empty}
+%    This macro defines the sytle \emph{empty} for a product box. It
+%    simply does nothing.
+%    \changes{1.1}{2010/12/26}{New box style ``empty''.}
+%    \begin{macrocode}
+\newcommand\ProductBox@style@empty{}
+%    \end{macrocode}
+%    \end{macro}
+%
 %    \begin{macro}{\ProductBox@style@flat}
 %    This macro defines the sytle \emph{flat} for a product box.
 %    \begin{macrocode}
@@ -890,7 +1501,7 @@
 %    This macro defines the sytle \emph{back} for a product box. Only this
 %    one face of the box is shown.
 %    \begin{macrocode}
-\newcommand\ProductBox@style@back{%
+\newcommand\ProductBox@style@back{%class
   \copy\ProductBox@Back
 }
 %    \end{macrocode}
@@ -946,180 +1557,179 @@
 %
 %    \subsubsection{Box Style \texttt{fold}}
 %
+%    \begin{macro}{\ProductBox@earSize}
+%    Parameter for the size of the ears.
+%    \begin{macrocode}
+\newcommand\ProductBox@earSize{12mm}
+%    \end{macrocode}
+%    \end{macro}
+%
+%    \begin{macro}{\ProductBox@foldLine}
+%    The color of the additional lines in the fold rendering.
+%    \begin{macrocode}
+\newcommand\ProductBox@foldLine{white!80!black}
+%    \end{macrocode}
+%    \end{macro}
+%
+%    \begin{macro}{\ProductBox@foldOpacity}
+%    The color of the additional lines in the fold rendering.
+%    \begin{macrocode}
+\newcommand\ProductBox@foldOpacity{.5}
+%    \end{macrocode}
+%    \end{macro}
+%
 %    \begin{macro}{\ProductBox@style@fold}
 %    This macro defines the sytle \emph{fold} for a product box.
 %    \begin{macrocode}
 \newcommand\ProductBox@style@fold{%
-  \begin{tikzpicture}
+  \begin{tikzpicture}[sw/.style={anchor=south west,
+                                 inner sep=0pt},
+                      se/.style={anchor=south east,
+                                 inner sep=0pt},
+                      nw/.style={anchor=north west,
+                                 inner sep=0pt},
+                      num/.style={circle,
+                                  fill=white!90!black,
+                                  fill opacity=.5,
+                                  font=\tiny\bfseries\sffamily}]
 %    \end{macrocode}
-%    front
+%    left face
 %    \begin{macrocode}
-    \begin{scope}[xshift=\ProductBox@z]
-      \clip (0mm,0mm) rectangle (\ProductBox@x,\ProductBox@y);
-      \draw
-        node[anchor=south west,
-             inner sep=0pt]{\copy\ProductBox@Front};
-      \draw[\ProductBox@foldLine]
-        (0mm,0mm) rectangle (\ProductBox@x,\ProductBox@y);
+    \begin{scope}
+      \clip rectangle (\ProductBox@z,\ProductBox@y);
+      \draw node[sw]{\copy\ProductBox@Left};
+      \draw[thin,opacity=\ProductBox@foldOpacity,\ProductBox@foldLine]
+        rectangle (\ProductBox@z,\ProductBox@y);
     \end{scope}
 %    \end{macrocode}
-%    back
+%    front face
 %    \begin{macrocode}
-    \begin{scope}[xshift=\ProductBox@x,
-                  xshift=\ProductBox@z,
-                  xshift=\ProductBox@z]
-      \clip (0mm,0mm) rectangle (\ProductBox@x,\ProductBox@y);
-      \draw
-        node[anchor=south west,
-             inner sep=0pt]{\copy\ProductBox@Back};
-      \draw[\ProductBox@foldLine]
-        (0mm,0mm) rectangle (\ProductBox@x,\ProductBox@y);
+    \begin{scope}[xshift=\ProductBox@z]
+      \clip rectangle (\ProductBox@x,\ProductBox@y);
+      \draw node[sw]{\copy\ProductBox@Front};
+      \draw[thin,opacity=\ProductBox@foldOpacity,\ProductBox@foldLine]
+        rectangle (\ProductBox@x,\ProductBox@y);
     \end{scope}
 %    \end{macrocode}
-%    top
+%    right face
 %    \begin{macrocode}
-    \begin{scope}[xshift=\ProductBox@z,yshift=\ProductBox@y]
-      \clip (0mm,0mm) rectangle (\ProductBox@x,\ProductBox@z);
-      \draw
-        node[anchor=south west,
-             inner sep=0pt]{\copy\ProductBox@Top};
-      \draw[\ProductBox@foldLine]
-        (0mm,0mm) rectangle (\ProductBox@x,\ProductBox@z);
+    \begin{scope}[xshift=\ProductBox@z+\ProductBox@x]
+      \clip rectangle (\ProductBox@z,\ProductBox@y);
+      \draw node[sw]{\copy\ProductBox@Right};
+      \draw[thin,opacity=\ProductBox@foldOpacity,\ProductBox@foldLine]
+        rectangle (\ProductBox@z,\ProductBox@y);
     \end{scope}
 %    \end{macrocode}
-%    left
+%    back face
 %    \begin{macrocode}
-    \begin{scope}
-      \clip (0mm,0mm) rectangle (\ProductBox@z,\ProductBox@y);
-      \draw 
-        node[anchor=south west,
-             inner sep=0pt]{\copy\ProductBox@Left};
-      \draw[\ProductBox@foldLine]
-        (0mm,0mm) rectangle (\ProductBox@z,\ProductBox@y);
+    \begin{scope}[xshift=\ProductBox@x+2*\ProductBox@z]
+      \clip rectangle (\ProductBox@x,\ProductBox@y);
+      \draw node[sw]{\copy\ProductBox@Back};
+      \draw[thin,opacity=\ProductBox@foldOpacity,\ProductBox@foldLine]
+         rectangle (\ProductBox@x,\ProductBox@y);
     \end{scope}
 %    \end{macrocode}
-%    right
+%    top face
 %    \begin{macrocode}
-    \begin{scope}[xshift=\ProductBox@z,xshift=\ProductBox@x]
-      \clip (0mm,0mm) rectangle (\ProductBox@z,\ProductBox@y);
-      \draw 
-        node[anchor=south west,
-             inner sep=0pt]{\copy\ProductBox@Right};
-      \draw[\ProductBox@foldLine]
-        (0mm,0mm) rectangle (\ProductBox@z,\ProductBox@y);
+    \begin{scope}[xshift=\ProductBox@z,yshift=\ProductBox@y]
+      \clip rectangle (\ProductBox@x,\ProductBox@z);
+      \draw node[sw]{\copy\ProductBox@Top};
+      \draw[thin,opacity=\ProductBox@foldOpacity,\ProductBox@foldLine]
+        rectangle (\ProductBox@x,\ProductBox@z);
     \end{scope}
 %    \end{macrocode}
 %    bottom ear 3 front
 %    \begin{macrocode}
-    \begin{scope}[xshift=\ProductBox@z,yshift=-\ProductBox@z]
-      \clip (0mm,\ProductBox@z) --
-        ($.5*(\ProductBox@z,\ProductBox@z)$) --
-        ($.5*(\ProductBox@z,0mm)$) --
-        ($(\ProductBox@x,0mm)-.5*(\ProductBox@z,0mm)$) --
-        ($(\ProductBox@x,0mm)+.5*(-\ProductBox@z,\ProductBox@z)$) --
-        (\ProductBox@x,\ProductBox@z) -- cycle;
-      \draw (\ProductBox@x,0mm) 
-        node[anchor=south east,
-             inner sep=0pt]{\copy\ProductBox@Bottom};
-      \draw [\ProductBox@foldLine]
-        (0mm,\ProductBox@z) --
-        ($.5*(\ProductBox@z,\ProductBox@z)$) --
-        ($.5*(\ProductBox@z,0mm)$) --
-        ($(\ProductBox@x,0mm)-.5*(\ProductBox@z,0mm)$) --
-        ($(\ProductBox@x,0mm)+.5*(-\ProductBox@z,\ProductBox@z)$) --
-        (\ProductBox@x,\ProductBox@z) -- cycle;
-      \draw ($.5*(\ProductBox@x,\ProductBox@z)-.25*(0mm,\ProductBox@z)$)
-        node[circle,fill=white!90!black]{\small\sf1};
+    \begin{scope}[xshift=\ProductBox@z]
+      \clip
+        (0mm,0mm) -- (.5*\ProductBox@z,-.5*\ProductBox@z) --
+        (.5*\ProductBox@z,-\ProductBox@z) --
+        (\ProductBox@x-.5*\ProductBox@z,-\ProductBox@z) --
+        (\ProductBox@x-.5*\ProductBox@z,-.5*\ProductBox@z) --
+        (\ProductBox@x,0mm) -- cycle;
+      \draw (\ProductBox@x,-\ProductBox@z)
+        node[se]{\copy\ProductBox@Bottom};
+      \draw [thin,opacity=\ProductBox@foldOpacity,\ProductBox@foldLine]
+        (0mm,0mm) -- (.5*\ProductBox@z,-.5*\ProductBox@z) --
+        (.5*\ProductBox@z,-\ProductBox@z) --
+        (\ProductBox@x-.5*\ProductBox@z,-\ProductBox@z) --
+        (\ProductBox@x-.5*\ProductBox@z,-.5*\ProductBox@z) --
+        (\ProductBox@x,0mm) -- cycle;
+      \draw (.5*\ProductBox@x,-.75*\ProductBox@z) node[num]{3};
     \end{scope}
 %    \end{macrocode}
 %    bottom ear 1 back
 %    \begin{macrocode}
-    \begin{scope}[xshift=\ProductBox@x,
-                  xshift=\ProductBox@z,
-                  xshift=\ProductBox@z,
-                  yshift=-\ProductBox@z]
-      \clip (0mm,0mm) --
-        ($.5*(\ProductBox@z,0mm)$) --
-        ($.5*(\ProductBox@z,\ProductBox@z)$) --
-        ($(\ProductBox@x,0mm)-.5*(\ProductBox@z,-\ProductBox@z)$) --
-        ($(\ProductBox@x,0mm)-.5*(\ProductBox@z,0mm)$) --
-        (\ProductBox@x,0mm) -- (\ProductBox@x,\ProductBox@z) --
-        (0mm,\ProductBox@z) -- cycle; 
-      \draw (0mm,\ProductBox@z)
-         node[rotate=180,anchor=south east,
-              inner sep=0pt]{\copy\ProductBox@Bottom};
-       \draw[\ProductBox@foldLine]
-        (0mm,0mm) --
-        ($.5*(\ProductBox@z,0mm)$) --
-        ($.5*(\ProductBox@z,\ProductBox@z)$) --
-        ($(\ProductBox@x,0mm)-.5*(\ProductBox@z,-\ProductBox@z)$) --
-        ($(\ProductBox@x,0mm)-.5*(\ProductBox@z,0mm)$) --
-        (\ProductBox@x,0mm) -- (\ProductBox@x,\ProductBox@z) --
-        (0mm,\ProductBox@z) -- cycle; 
-      \draw ($.25*(\ProductBox@z,\ProductBox@z)$)
-        node[circle,fill=white!90!black]{\small\sf1};
-      \draw ($(\ProductBox@x,0mm)+.25*(-\ProductBox@z,\ProductBox@z)$)
-        node[circle,fill=white!90!black]{\small\sf1};
+    \begin{scope}[xshift=\ProductBox@x+2*\ProductBox@z]
+      \clip
+        (0mm,0mm) -- (0mm,-\ProductBox@z) --
+        (.5*\ProductBox@z,-\ProductBox@z) --
+        (.5*\ProductBox@z,-.5*\ProductBox@z) --
+        (\ProductBox@x-.5*\ProductBox@z,-.5*\ProductBox@z) --
+        (\ProductBox@x-.5*\ProductBox@z,-\ProductBox@z) --
+        (\ProductBox@x,-\ProductBox@z) -- (\ProductBox@x,0mm) --
+        cycle;
+      \draw node[se,rotate=180]{\copy\ProductBox@Bottom};
+      \draw[thin,opacity=\ProductBox@foldOpacity,\ProductBox@foldLine]
+        (0mm,0mm) -- (0mm,-\ProductBox@z) --
+        (.5*\ProductBox@z,-\ProductBox@z) --
+        (.5*\ProductBox@z,-.5*\ProductBox@z) --
+        (\ProductBox@x-.5*\ProductBox@z,-.5*\ProductBox@z) --
+        (\ProductBox@x-.5*\ProductBox@z,-\ProductBox@z) --
+        (\ProductBox@x,-\ProductBox@z) -- (\ProductBox@x,0mm) --
+        cycle;
+      \draw (.25*\ProductBox@z,-.75*\ProductBox@z) node[num]{1};
+      \draw (\ProductBox@x-.25*\ProductBox@z,-.75*\ProductBox@z)
+        node[num]{1};
     \end{scope}
 %    \end{macrocode}
 %    bottom ear 2 right
 %    \begin{macrocode}
-    \begin{scope}[xshift=\ProductBox@z,yshift=-\ProductBox@z]
+    \begin{scope}[xshift=\ProductBox@z+\ProductBox@x]
       \clip
-        (\ProductBox@x,\ProductBox@z) --
-        ($(\ProductBox@x,\ProductBox@z)+(\ProductBox@z,0mm)$) --
-        ($(\ProductBox@x,0mm) + .5*(\ProductBox@z,\ProductBox@z)$) -- 
-        ($(\ProductBox@x,0mm) + .5*(\ProductBox@z,0mm)$) -- 
-        (\ProductBox@x,0mm) -- cycle; 
-      \begin{scope}[xshift=1mm,yshift=1mm]
-        \draw[xshift=\ProductBox@z,yshift=\ProductBox@z]
-          (\ProductBox@x,0mm)
-          node[rotate=90,anchor=south east]{\copy\ProductBox@Bottom};
-      \end{scope}
-      \draw[\ProductBox@foldLine]
-        (\ProductBox@x,\ProductBox@z) --
-        ($(\ProductBox@x,\ProductBox@z)+(\ProductBox@z,0mm)$) --
-        ($(\ProductBox@x,0mm) + .5*(\ProductBox@z,\ProductBox@z)$) -- 
-        ($(\ProductBox@x,0mm) + .5*(\ProductBox@z,0mm)$) -- 
-        (\ProductBox@x,0mm) -- cycle; 
-      \draw[xshift=\ProductBox@x]
-        ($.25*(\ProductBox@z,\ProductBox@z)$)
-        node[circle,fill=white!90!black]{\small\sf2};
+        (0mm,0mm) -- (\ProductBox@z,0mm) --
+        (.5*\ProductBox@z,-.5*\ProductBox@z) --
+        (.5*\ProductBox@z,-\ProductBox@z) -- (0mm,-\ProductBox@z) --
+        cycle;
+      \draw (\ProductBox@z,0mm)
+        node[se,rotate=90]{\copy\ProductBox@Bottom};
+      \draw[thin,opacity=\ProductBox@foldOpacity,\ProductBox@foldLine]
+        (0mm,0mm) -- (\ProductBox@z,0mm) --
+        (.5*\ProductBox@z,-.5*\ProductBox@z) --
+        (.5*\ProductBox@z,-\ProductBox@z) -- (0mm,-\ProductBox@z) --
+        cycle;
+      \draw (.25*\ProductBox@z,-.75*\ProductBox@z) node[num]{2};
     \end{scope}
 %    \end{macrocode}
 %    bottom ear 2 left
 %    \begin{macrocode}
-    \begin{scope}[yshift=-\ProductBox@z]
+    \begin{scope}
       \clip
-        (0mm,\ProductBox@z) -- (\ProductBox@z,\ProductBox@z) --
-        (\ProductBox@z,0mm) -- ($.5*(\ProductBox@z,0mm)$) --
-        ($.5*(\ProductBox@z,\ProductBox@z)$) -- cycle; 
-      \draw (0mm,\ProductBox@z)
-        node[rotate=270,anchor=south west,
-             inner sep=0pt]{\copy\ProductBox@Bottom};
-      \draw [\ProductBox@foldLine]
-        (0mm,\ProductBox@z) -- (\ProductBox@z,\ProductBox@z) --
-        (\ProductBox@z,0mm) -- ($.5*(\ProductBox@z,0mm)$) --
-        ($.5*(\ProductBox@z,\ProductBox@z)$) -- cycle; 
-      \draw ($(\ProductBox@z,0mm)+.25*(-\ProductBox@z,\ProductBox@z)$)
-        node[circle,fill=white!90!black]{\small\sf2};
+        (0mm,0mm) -- (\ProductBox@z,0mm) --
+        (\ProductBox@z,-\ProductBox@z) --
+        (.5*\ProductBox@z,-\ProductBox@z) --
+        (.5*\ProductBox@z,-.5*\ProductBox@z) -- cycle;
+      \draw
+        node[sw,rotate=270]{\copy\ProductBox@Bottom};
+      \draw [thin,opacity=\ProductBox@foldOpacity,\ProductBox@foldLine]
+        (0mm,0mm) -- (\ProductBox@z,0mm) --
+        (\ProductBox@z,-\ProductBox@z) --
+        (.5*\ProductBox@z,-\ProductBox@z) --
+        (.5*\ProductBox@z,-.5*\ProductBox@z) -- cycle;
+      \draw (.75*\ProductBox@z,-.75*\ProductBox@z) node[num]{2};
     \end{scope}
 %    \end{macrocode}
 %    glue ear
 %    \begin{macrocode}
-    \begin{scope}[xshift=\ProductBox@x,
-                  xshift=\ProductBox@x,
-                  xshift=\ProductBox@z,
-                  xshift=\ProductBox@z,\ProductBox@foldLine]
+    \begin{scope}[xshift=2*\ProductBox@x+2*\ProductBox@z]
       \clip
-        (0mm,0mm) -- (6mm,3mm) --
-        ($(6mm,\ProductBox@y)-(0mm,3mm)$) --
+        (0mm,0mm) -- (\ProductBox@earSize/2,\ProductBox@earSize/4) --
+        (\ProductBox@earSize/2,\ProductBox@y-\ProductBox@earSize/4) --
         (0mm,\ProductBox@y) -- cycle;
-      \draw node[anchor=south west,
-                 inner sep=0pt]{\copy\ProductBox@Left};
-      \draw[\ProductBox@foldLine]
-        (0mm,0mm) -- (6mm,3mm) --
-        ($(6mm,\ProductBox@y)-(0mm,3mm)$) --
+      \draw node[sw]{\copy\ProductBox@Left};
+      \draw[thin,opacity=\ProductBox@foldOpacity,\ProductBox@foldLine]
+        (0mm,0mm) -- (\ProductBox@earSize/2,\ProductBox@earSize/4) --
+        (\ProductBox@earSize/2,\ProductBox@y-\ProductBox@earSize/4) --
         (0mm,\ProductBox@y) -- cycle;
     \end{scope}
 %    \end{macrocode}
@@ -1127,50 +1737,44 @@
 %    \begin{macrocode}
     \begin{scope}[yshift=\ProductBox@y]
       \clip
-        (0mm,0mm) -- (6mm,12mm) --
-        ($(\ProductBox@z,12mm)-(6mm,0mm)$)
-        -- (\ProductBox@z,0mm) -- cycle;
-      \draw
-        node[rotate=90,anchor=north west,
-              inner sep=0pt]{\copy\ProductBox@Top};
-      \draw[\ProductBox@foldLine]
-        (0mm,0mm) -- (6mm,12mm) --
-        ($(\ProductBox@z,12mm)-(6mm,0mm)$)
-        -- (\ProductBox@z,0mm) -- cycle;
+        (0mm,0mm) -- (\ProductBox@earSize/2,\ProductBox@earSize) --
+        (\ProductBox@z-\ProductBox@earSize/2,\ProductBox@earSize) -- 
+        (\ProductBox@z,0mm) -- cycle;
+      \draw node[nw,rotate=90]{\copy\ProductBox@Top};
+      \draw[thin,opacity=\ProductBox@foldOpacity,\ProductBox@foldLine]
+        (0mm,0mm) -- (\ProductBox@earSize/2,\ProductBox@earSize) --
+        (\ProductBox@z-\ProductBox@earSize/2,\ProductBox@earSize) -- 
+        (\ProductBox@z,0mm) -- cycle;
     \end{scope}
 %    \end{macrocode}
 %    top ear right
 %    \begin{macrocode}
-    \begin{scope}[xshift=\ProductBox@x,
-                  xshift=\ProductBox@z,
+    \begin{scope}[xshift=\ProductBox@x+\ProductBox@z,
                   yshift=\ProductBox@y]
       \clip
-        (0mm,0mm) -- (6mm,12mm) --
-        ($(\ProductBox@z,12mm)-(6mm,0mm)$)
-        -- (\ProductBox@z,0mm) -- cycle;
-      \draw
-          node[rotate=270,anchor=south east,
-              inner sep=0pt]{\copy\ProductBox@Top};
-      \draw[\ProductBox@foldLine]
-        (0mm,0mm) -- (6mm,12mm) -- ($(\ProductBox@z,12mm)-(6mm,0mm)$)
-        -- (\ProductBox@z,0mm) -- cycle;
+        (0mm,0mm) -- (\ProductBox@earSize/2,\ProductBox@earSize) --
+        (\ProductBox@z-\ProductBox@earSize/2,\ProductBox@earSize) --
+        (\ProductBox@z,0mm) -- cycle; 
+      \draw node[se,rotate=270]{\copy\ProductBox@Top};
+      \draw[thin,opacity=\ProductBox@foldOpacity,\ProductBox@foldLine]
+        (0mm,0mm) -- (\ProductBox@earSize/2,\ProductBox@earSize) --
+        (\ProductBox@z-\ProductBox@earSize/2,\ProductBox@earSize) --
+        (\ProductBox@z,0mm) -- cycle; 
     \end{scope}
 %    \end{macrocode}
 %    top ear back
 %    \begin{macrocode}
     \begin{scope}[xshift=\ProductBox@z,
-                  yshift=\ProductBox@y,
-                  yshift=\ProductBox@z]
+                  yshift=\ProductBox@y+\ProductBox@z]
       \clip
-        (0mm,0mm) -- (6mm,12mm) --
-        ($(\ProductBox@x,12mm)-(6mm,0mm)$) --
-        (\ProductBox@x,0mm) -- cycle;
+        (0mm,0mm) -- (\ProductBox@earSize/2,\ProductBox@earSize) --
+        (\ProductBox@x-\ProductBox@earSize/2,\ProductBox@earSize) --
+        (\ProductBox@x,0mm) -- cycle; 
       \draw (0mm,\ProductBox@y)
-        node[rotate=180,anchor=south east,
-             inner sep=0pt]{\copy\ProductBox@Back};
-      \draw[\ProductBox@foldLine]
-        (0mm,0mm) -- (6mm,12mm) --
-        ($(\ProductBox@x,12mm)-(6mm,0mm)$) --
+        node[se,rotate=180]{\copy\ProductBox@Back};
+      \draw[thin,opacity=\ProductBox@foldOpacity,\ProductBox@foldLine]
+        (0mm,0mm) -- (\ProductBox@earSize/2,\ProductBox@earSize) --
+        (\ProductBox@x-\ProductBox@earSize/2,\ProductBox@earSize) --
         (\ProductBox@x,0mm) -- cycle;
     \end{scope}
   \end{tikzpicture}}
@@ -1179,13 +1783,78 @@
 %
 %    \subsubsection{Box Style \texttt{threeD}}
 %
+%    \begin{macro}{\ProductBoxThreeDStartHook}
+%    A hook to add some code at the beginning.
+%    \begin{macrocode}
+\newcommand\ProductBoxThreeDStartHook{}
+%    \end{macrocode}
+%    \end{macro}
+%
+%    \begin{macro}{\ProductBoxThreeDEndHook}
+%    A hook to add some code at the end.
+%    \begin{macrocode}
+\newcommand\ProductBoxThreeDEndHook{}
+%    \end{macrocode}
+%    \end{macro}
+%
+%    \begin{macro}{\ifProductBox@shadow}
+%    The boolean |ProductBox@shadow| determines whether or not the
+%    shadow in the 3D rendering is shown.
+%    \begin{macrocode}
+\newif\ifProductBox@shadow \ProductBox@shadowtrue
+%    \end{macrocode}
+%    \end{macro}
+%
+%    \begin{macro}{\ifProductBox@mirror}
+%    The boolean |ProductBox@mirror| determines whether or not the
+%    mirror effect in the 3D rendering is shown.
+%    \begin{macrocode}
+\newif\ifProductBox@mirror
+%    \end{macrocode}
+%    \end{macro}
+%
+%    \begin{macro}{\ifProductBox@flare}
+%    The boolean |ProductBox@flare| determines whether or not the
+%    flare effect in the 3D rendering is shown.
+%    \begin{macrocode}
+\newif\ifProductBox@flare
+%    \end{macrocode}
+%    \end{macro}
+%
+%    \begin{macro}{\ProductBox@edgeColor}
+%    The edge color in the 3D rendering.
+%    \begin{macrocode}
+\newcommand\ProductBox@edgeColor{white}
+%    \end{macrocode}
+%    \end{macro}
+%
+%    \begin{macro}{\ProductBox@flareDiameter}
+%    The diameter of the flare.
+%    \begin{macrocode}
+\newcommand\ProductBox@flareDiameter{24mm}
+%    \end{macrocode}
+%    \end{macro}
+%
+%    The angle to rotate the box about the z axis.
+%    \begin{macrocode}
+\newcommand\ProductBox@angleZ{8}
+%    \end{macrocode}
+%
+%    The angle to rotate the box about the x axis.
+%    \begin{macrocode}
+\newcommand\ProductBox@angleX{10}
+%    \end{macrocode}
+%
 %    \begin{macro}{\ProductBox@style@threeD}
 %    This macro defines the sytle \emph{threeD} for a product box. The
 %    faces are placed such the illusion of a three-dimensional box
-%    appears. In addition a shadow is shown if not disabled. 
+%    appears. In addition a shadow is shown if not disabled.
+%    \changes{1.1}{2010/12/26}{Fix: The flare is also transformed and clipped.}
 %    \begin{macrocode}
 \newcommand\ProductBox@style@threeD{
-  \begin{tikzpicture}\ProductBox@startOptions
+  \begin{tikzpicture}[sw/.style={anchor=south west,
+                                 inner sep=0pt}]
+    \ProductBoxThreeDStartHook
     \ifProductBox@mirror \ProductBox@threeD@mirror \fi
     \ifProductBox@shadow \ProductBox@threeD@shadow \fi
 
@@ -1193,69 +1862,82 @@
       \fill[white,
             yslant=\ProductBox@p@front@yslant,
             xscale=\ProductBox@p@front@xscale,
+            yscale=\ProductBox@p@front@yscale,
             anchor=south west]
         rectangle (\ProductBox@x,\ProductBox@y);
       \draw
-        node[yslant=\ProductBox@p@front@yslant,
+        node[sw,
+             yslant=\ProductBox@p@front@yslant,
              xscale=\ProductBox@p@front@xscale,
-             anchor=south west,
-             inner sep=0pt] {\copy\ProductBox@Front};
+             yscale=\ProductBox@p@front@yscale]
+            {\copy\ProductBox@Front};
       \fill[black,
             fill opacity=.025,
             yslant=\ProductBox@p@front@yslant,
             xscale=\ProductBox@p@front@xscale,
+            yscale=\ProductBox@p@front@yscale,
             anchor=south west]
         rectangle (\ProductBox@x,\ProductBox@y);
-        \ifProductBox@flare \ProductBox@threeD@flare \fi
+      \ifProductBox@flare
+        \begin{scope}[
+            yslant=\ProductBox@p@front@yslant,
+            xscale=\ProductBox@p@front@xscale,
+            yscale=\ProductBox@p@front@yscale]
+          \clip rectangle(\ProductBox@x,\ProductBox@y);
+          \ProductBox@threeD@flare
+        \end{scope}
+      \fi
     \end{scope}
-    \begin{scope}[shift={($\ProductBox@p@left@yslant
+    \begin{scope}[shift={(-\ProductBox@p@left@xscale*\ProductBox@z,
+                          \ProductBox@p@left@yslant
                              *\ProductBox@p@left@xscale
-                             *(0mm,\ProductBox@z)
-                          -\ProductBox@p@left@xscale
-                             *(\ProductBox@z,0mm)$)}]
+                             *\ProductBox@z)}]
       \fill[white,
             yslant=-\ProductBox@p@left@yslant,
             xscale=\ProductBox@p@left@xscale,
+            yscale=\ProductBox@p@left@yscale,
             anchor=south west]
         rectangle (\ProductBox@z,\ProductBox@y);
       \draw
-        node[yslant=-\ProductBox@p@left@yslant,
+        node[sw,
+             yslant=-\ProductBox@p@left@yslant,
              xscale=\ProductBox@p@left@xscale,
-             anchor=south west,
-             inner sep=0pt] {\copy\ProductBox@Left};
+             yscale=\ProductBox@p@left@yscale]
+            {\copy\ProductBox@Left};
       \fill[black,
             fill opacity=.25,
             yslant=-\ProductBox@p@left@yslant,
             xscale=\ProductBox@p@left@xscale,
-            anchor=south west] rectangle (\ProductBox@z,\ProductBox@y);
+            yscale=\ProductBox@p@left@yscale,
+            anchor=south west]
+        rectangle (\ProductBox@z,\ProductBox@y);
     \end{scope}
     \begin{scope}[yshift=\ProductBox@y]
       \fill [white,
+             anchor=south west,
              xslant=-\ProductBox@p@top@xslant,
-             yslant=\ProductBox@p@top@yslant,
              xscale=\ProductBox@p@top@xscale,
-             yscale=\ProductBox@p@top@yscale,
-             anchor=south west] rectangle (\ProductBox@x,\ProductBox@z);
-      \draw
-        node[xslant=-\ProductBox@p@top@xslant,
              yslant=\ProductBox@p@top@yslant,
+             yscale=\ProductBox@p@top@yscale]
+        rectangle (\ProductBox@x,\ProductBox@z);
+      \draw
+        node[sw,
+             xslant=-\ProductBox@p@top@xslant,
              xscale=\ProductBox@p@top@xscale,
-             yscale=\ProductBox@p@top@yscale,
-             anchor=south west,
-             inner sep=0pt] {\copy\ProductBox@Top};
+             yslant=\ProductBox@p@top@yslant,
+             yscale=\ProductBox@p@top@yscale]
+            {\copy\ProductBox@Top};
       \fill [black,
              fill opacity=.0025,
+             anchor=south west,
              xslant=-\ProductBox@p@top@xslant,
-             yslant=\ProductBox@p@top@yslant,
              xscale=\ProductBox@p@top@xscale,
-             yscale=\ProductBox@p@top@yscale,
-             anchor=south west] rectangle (\ProductBox@x,\ProductBox@z);
+             yslant=\ProductBox@p@top@yslant,
+             yscale=\ProductBox@p@top@yscale]
+         rectangle (\ProductBox@x,\ProductBox@z);
     \end{scope}
-    \begin{scope}[shift={($\ProductBox@p@left@yslant
-                             *\ProductBox@p@left@xscale
-                             *(0mm,\ProductBox@z)
-                           -\ProductBox@p@left@xscale
-                             *(\ProductBox@z,0mm)$)}]
+    \begin{scope}[shift={(-\ProductBox@p@left@xscale*\ProductBox@z,
+        \ProductBox@p@left@yslant*\ProductBox@p@left@xscale*\ProductBox@z)}]
       \draw [\ProductBox@edgeColor,
              line width=.5mm,
              draw opacity=.25,
@@ -1263,7 +1945,7 @@
              xscale=\ProductBox@p@left@xscale]
         (\ProductBox@z,0mm) --
         (\ProductBox@z,\ProductBox@y) --
-        (0mm,\ProductBox@y); 
+        (0mm,\ProductBox@y);
     \end{scope}
     \draw [\ProductBox@edgeColor,
            line width=.5mm,
@@ -1271,45 +1953,49 @@
            yslant=\ProductBox@p@front@yslant,
            xscale=\ProductBox@p@front@xscale,
            anchor=south west]
-      (0mm,\ProductBox@y) --
-      (\ProductBox@x,\ProductBox@y); 
-      \ProductBox@endOptions
+      (0mm,\ProductBox@y) -- (\ProductBox@x,\ProductBox@y);
+    \ProductBoxThreeDEndHook
   \end{tikzpicture}}
 %    \end{macrocode}
 %    \end{macro}
 %
-%    Parameters
+%    Parameters and views.
 %
 %    \begin{macrocode}
-\newcommand\ProductBox@Set@params[9]{%
-  \def\ProductBox@p@front@yslant{#1}
-  \def\ProductBox@p@front@xscale{#2}
-  \def\ProductBox@p@left@yslant{#3}
-  \def\ProductBox@p@left@xscale{#4}
-  \def\ProductBox@p@top@xslant{#5}
-  \def\ProductBox@p@top@yslant{#6}
-  \def\ProductBox@p@top@xscale{#7}
-  \def\ProductBox@p@top@yscale{#8}
-  \def\ProductBox@p@mirror@yscale{#9}
+\newcommand\ProductBox@setFrontParams[3]{%
+  \def\ProductBox@p@front@yslant{#1}%
+  \def\ProductBox@p@front@xscale{#2}%
+  \def\ProductBox@p@front@yscale{#3}%
+}
+\newcommand\ProductBox@setLeftParams[3]{%
+  \def\ProductBox@p@left@yslant{#1}%
+  \def\ProductBox@p@left@xscale{#2}%
+  \def\ProductBox@p@left@yscale{#3}%
 }
-\@namedef{ProductBox@View@1}{
-  \ProductBox@Set@params
-    {.25}{.9090909}%
-    {.5}{.6666666}%
-    {2}{.1666666}{1.36363636}{.3333333}%
-    {.2}}
-\@namedef{ProductBox@View@2}{
-  \ProductBox@Set@params
-    {.15}{.9090909}%
-    {.6666666}{.5}%
-    {1.5}{.12}{1.11}{.333333}%
-    {.2}}
-\@namedef{ProductBox@View@3}{
-  \ProductBox@Set@params
-    {.05}{.95}%
-    {.25}{.4}%
-    {4}{.04}{1.133333}{.1}%
-    {.2}}
+\newcommand\ProductBox@setTopParams[4]{%
+  \def\ProductBox@p@top@xslant{#1}%
+  \def\ProductBox@p@top@yslant{#2}%
+  \def\ProductBox@p@top@xscale{#3}%
+  \def\ProductBox@p@top@yscale{#4}%
+}
+\newcommand\ProductBox@setMirrorParams[1]{%
+  \def\ProductBox@p@mirror@yscale{#1}%
+}
+\@namedef{ProductBox@View@1}{%
+  \ProductBox@setFrontParams{.25}{.9090909}{1}%
+  \ProductBox@setLeftParams{.5}{.6666666}{1}%
+  \ProductBox@setTopParams{2}{.2265}{1.363}{.3333333}%
+  \ProductBox@setMirrorParams{.4}}
+\@namedef{ProductBox@View@2}{%
+  \ProductBox@setFrontParams{.15}{.9090909}{1}%
+  \ProductBox@setLeftParams{.6666666}{.5}{1}%
+  \ProductBox@setTopParams{1.5}{.12}{1.11}{.333333}%
+  \ProductBox@setMirrorParams{.4}}
+\@namedef{ProductBox@View@3}{%
+  \ProductBox@setFrontParams{.05}{.95}{1}%
+  \ProductBox@setLeftParams{.25}{.4}{1}%
+  \ProductBox@setTopParams{4}{.04}{1.133333}{.1}%
+  \ProductBox@setMirrorParams{.4}}
 \@nameuse{ProductBox@View@1}
 %    \end{macrocode}
 %
@@ -1318,10 +2004,10 @@
 %    \begin{macrocode}
 \newcommand\ProductBox@threeD@shadow{
     \begin{scope}
-      \pgfsetcornersarced{\pgfpoint{2mm}{2mm}}
       \foreach \x in {.5,1,1.5,2,2.5,3,4,5,6,8,10} {
         \filldraw [black,
                    line width=\x mm,
+                   rounded corners=2mm,
                    opacity=.01,
                    shift={(-1mm,1mm)}]
           (0mm,0mm) --
@@ -1329,13 +2015,13 @@
            *\ProductBox@p@left@xscale
            *\ProductBox@z,
            \ProductBox@p@top@yscale
-           *\ProductBox@z) -- 
+           *\ProductBox@z) --
           (0mm,
            \ProductBox@p@top@yscale*\ProductBox@z +
            \ProductBox@p@top@xslant
            *\ProductBox@p@left@xscale
            *\ProductBox@p@top@yslant
-           *\ProductBox@z) -- 
+           *\ProductBox@z) --
           cycle;
       }
     \end{scope}
@@ -1346,78 +2032,82 @@
 %    The following fading is used for the mirror effect in the 3D rendering.
 %    \begin{macrocode}
 \tikzfading[name=ProductBoxFade,
-            top color=transparent!0,
-            bottom color=transparent!60]
-%    \end{macrocode}
-%
-%    The following fading is used for the flare effect in the 3D rendering.
-%    \begin{macrocode}
-\tikzfading[name=ProductBoxFlare,
-            inner color=transparent!60,
-            outer color=transparent!100]
+            top color=transparent!100,
+            bottom color=transparent!50,
+            middle color=transparent!100]
 %    \end{macrocode}
-%
 %    \begin{macro}{\ProductBox@threeD@mirror}
 %    This macro defines the code to produce the mirror effect.
+%    \changes{1.1}{2010/12/27}{Code rewritten to make full use of tranparency.}
 %    \begin{macrocode}
 \newcommand\ProductBox@threeD@mirror{%
-  \begin{pgflowlevelscope}{
-      \pgftransformyslant{\ProductBox@p@front@yslant}
-      \pgftransformyscale{-\ProductBox@p@mirror@yscale}
-      \pgftransformxscale{\ProductBox@p@front@xscale}}
-    \begin{scope}
-      \clip rectangle (\ProductBox@x,50mm);
-      \fill
-        node[anchor=south west,
-              inner sep=0pt]{\copy\ProductBox@Front};
-    \end{scope}
-    \fill [white,path fading=ProductBoxFade]
-      rectangle (\ProductBox@x,50.5mm);
-  \end{pgflowlevelscope}
+  \fill
+    node[anchor=south west,
+         inner sep=0pt,
+         yslant=\ProductBox@p@front@yslant,
+         xscale=\ProductBox@p@front@xscale,
+         yscale=-\ProductBox@p@mirror@yscale]
+      {\begin{tikzpicture}
+            \clip rectangle (\ProductBox@x,
+                             \ProductBox@y*\ProductBox@p@mirror@yscale);
+            \fill node [scope fading=ProductBoxFade,
+                        yscale=\ProductBox@p@mirror@yscale,
+                        inner sep=0pt]{\copy\ProductBox@Front};
+          \end{tikzpicture}};
+  \fill[xshift=-\ProductBox@p@left@xscale*\ProductBox@z,
+        yshift=\ProductBox@p@top@yscale*\ProductBox@z]
+    node[anchor=south west,
+         inner sep=0pt,
+         yslant=-\ProductBox@p@left@yslant,
+         xscale=\ProductBox@p@left@xscale,
+         yscale=-\ProductBox@p@mirror@yscale]
+      {\begin{tikzpicture}
+         \clip rectangle (\ProductBox@z,
+                          \ProductBox@y*\ProductBox@p@mirror@yscale);
+         \fill node [scope fading=ProductBoxFade,
+                     yscale=\ProductBox@p@mirror@yscale,
+                     inner sep=0pt]{\copy\ProductBox@Left};
 
-  \begin{pgflowlevelscope}{
-      \pgftransformxshift{-\ProductBox@p@left@xscale*\ProductBox@z}
-      \pgftransformyshift{\ProductBox@p@top@yscale*\ProductBox@z}
-      \pgftransformyslant{-\ProductBox@p@left@yslant}
-      \pgftransformxscale{\ProductBox@p@left@xscale}
-      \pgftransformyscale{-\ProductBox@p@mirror@yscale}}
-    \begin{scope}
-      \clip rectangle (\ProductBox@z,50mm);
-      \fill
-        node[anchor=south west,
-             inner sep=0pt]{\copy\ProductBox@Left};
-      \fill[opacity=.25] rectangle (\ProductBox@z,\ProductBox@y);
-    \end{scope}
-    \fill [white,path fading=ProductBoxFade]
-      rectangle (\ProductBox@z,50.5mm);
-  \end{pgflowlevelscope}
+       \end{tikzpicture}};
 }
 %    \end{macrocode}
 %    \end{macro}
 %
 %    \begin{macro}{\ProductBox@threeD@flare}
-%    This macro defines the code to produce the flare effect.
+%    This macro defines the code to produce the flare effect. The
+%    flare is achieved with overlaying a partially transparent and
+%    fading circle of white color.
 %    \begin{macrocode}
 \newcommand\ProductBox@threeD@flare{
   \fill [white,path fading=ProductBoxFlare]
     (.8*\ProductBox@x,.9*\ProductBox@y)
-    circle(\ProductBox@flareDiameter); 
+    circle(\ProductBox@flareDiameter);
 }
 %    \end{macrocode}
 %    \end{macro}
 %
+%    The following fading is used for the flare effect in the 3D rendering.
+%    \begin{macrocode}
+\tikzfading[name=ProductBoxFlare,
+            inner color=transparent!60,
+            outer color=transparent!100]
+%    \end{macrocode}
+%
+%    Finally we define some variant names.
 %    \begin{macrocode}
 \@namedef{ProductBox@style@3D}{\ProductBox@style@threeD}
-%</class>
+\@namedef{ProductBox@style@3d}{\ProductBox@style@threeD}
+%</style>
 %    \end{macrocode}
 %    That's all.
 %
 %    \newpage
+%    \setcounter{IndexColumns}2
 %    \PrintChanges
 %    \newpage
 %    \PrintIndex
 %    \Finale
 \endinput
 %
-% Local Variables: 
-% End: 
+% Local Variables:
+% End:
diff --git a/Master/texmf-dist/source/latex/productbox/productbox.ins b/Master/texmf-dist/source/latex/productbox/productbox.ins
new file mode 100644
index 00000000000..f27c57bf31e
--- /dev/null
+++ b/Master/texmf-dist/source/latex/productbox/productbox.ins
@@ -0,0 +1,46 @@
+%%------------------------------------------------------------------
+%% Driver file to extract the productbox style file.
+%%
+%% Copyright (C) 2010 Gerd Neugebauer
+%%
+%%  productbox.ins is distributed in the hope that it will be useful,
+%%  but WITHOUT ANY WARRANTY.   No  author  or  distributor  accepts
+%%  responsibility to anyone for the consequences of using it or for
+%%  whether it serves any particular purpose or works at all, unless
+%%  he says so in writing.
+%% 
+%%  Everyone is granted permission to  copy, modify and redistribute
+%%  productbox.ins, provided this copyright notice is preserved  and
+%%  any modifications are indicated.
+%% 
+%%------------------------------------------------------------------
+%%
+%% Run this file through TeX or LaTeX to extract the files.
+%% You need the docstrip package as distributed with LaTeX2e.
+%% It is also available as seperate package from any CTAN site
+%% (http://www.ctan.org).
+%%------------------------------------------------------------------
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%% $Id: productbox.ins 8333 2010-12-29 19:58:06Z gene $
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+\input docstrip.tex \keepsilent \askonceonly
+
+\generate{\file{productbox.sty}{\from{productbox.dtx}{style}}
+         }
+
+\Msg{****************************************************************}
+\Msg{*}
+\Msg{* To finish the installation you have to move the following}
+\Msg{* files into a directory searched by (La)TeX:}
+\Msg{*}
+\Msg{* \space\space productbox.sty}
+\Msg{*}
+\Msg{* To produce the documentation run productbox.dtx through LaTeX,}
+\Msg{* BibTeX, makeindex (for index and glossary), and LaTeX twice }
+\Msg{* again.}
+\Msg{*}
+\Msg{* Happy TeXing}
+\Msg{****************************************************************}
+
+\endbatchfile
+\endinput
diff --git a/Master/texmf-dist/tex/latex/productbox/productbox.sty b/Master/texmf-dist/tex/latex/productbox/productbox.sty
new file mode 100644
index 00000000000..4a12c20bf50
--- /dev/null
+++ b/Master/texmf-dist/tex/latex/productbox/productbox.sty
@@ -0,0 +1,654 @@
+%%
+%% This is file `productbox.sty',
+%% generated with the docstrip utility.
+%%
+%% The original source files were:
+%%
+%% productbox.dtx  (with options: `style')
+%% 
+%% IMPORTANT NOTICE:
+%% 
+%% For the copyright see the source file.
+%% 
+%% Any modified versions of this file must be renamed
+%% with new filenames distinct from productbox.sty.
+%% 
+%% For distribution of the original source see the terms
+%% for copying and modification in the file productbox.dtx.
+%% 
+%% This generated file may be distributed as long as the
+%% original source files, as listed above, are part of the
+%% same distribution. (The sources need not necessarily be
+%% in the same archive or directory.)
+%%^^A $Id: productbox.dtx 8333 2010-12-29 19:58:06Z gene $
+%%^^A%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%% Purpose:
+%%      productbox.dtx   provides  a  style  file   for  typesetting  a
+%%      three-dimensional product box. This product box can be rendered
+%%      as it is standing on a surface and  some light is shed onto it.
+%%      Alternatively  it can be typeset as a wireframe  to be  cut out
+%%      and glued together. This will lead to a physical product box.
+%%
+%% Documentation:
+%%      The  documentation  can  be  generated  from the  original file
+%%      productbox.dtx  with  the  doc style/package.  LaTeX  the  file
+%%      productbox.dtx to get the full documentation in pdf format.
+%%
+%% Prerequisite:
+%%      This package needs TikZ to be present at least in version 2.0.
+%%
+%% Author: Gerd Neugebauer
+%%         Im Lerchelsb\"ohl 5
+%%         64521 Gro\ss-Gerau
+%% Mail:   gene@gerd-neugebauer.de
+%%
+%% Copyright (C) 2010 Gerd Neugebauer
+%%
+%%      productbox.dtx is distributed in the hope that it will be useful,
+%%      but  WITHOUT ANY WARRANTY.  No  author  or  distributor  accepts
+%%      responsibility to anyone for the consequences of using it or for
+%%      whether it serves any particular purpose or works at all, unless
+%%      he says so in writing.
+%%
+%%      Everyone is granted permission to  copy, modify and redistribute
+%%      productbox.dtx, provided this copyright notice is preserved  and
+%%      any modifications are indicated.
+%%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%%  \CharacterTable
+%%  {Upper-case    \A\B\C\D\E\F\G\H\I\J\K\L\M\N\O\P\Q\R\S\T\U\V\W\X\Y\Z
+%%   Lower-case    \a\b\c\d\e\f\g\h\i\j\k\l\m\n\o\p\q\r\s\t\u\v\w\x\y\z
+%%   Digits        \0\1\2\3\4\5\6\7\8\9
+%%   Exclamation   \!     Double quote  \"     Hash (number) \#
+%%   Dollar        \$     Percent       \%     Ampersand     \&
+%%   Acute accent  \'     Left paren    \(     Right paren   \)
+%%   Asterisk      \*     Plus          \+     Comma         \,
+%%   Minus         \-     Point         \.     Solidus       \/
+%%   Colon         \:     Semicolon     \;     Less than     \<
+%%   Equals        \=     Greater than  \>     Question mark \?
+%%   Commercial at \@     Left bracket  \[     Backslash     \\
+%%   Right bracket \]     Circumflex    \^     Underscore    \_
+%%   Grave accent  \`     Left brace    \{     Vertical bar  \|
+%%   Right brace   \}     Tilde         \~}
+%%
+\begingroup
+  \def\ProductBox@VC$#1: #2 #3${#2}
+  \def\ProductBox@VCdate$#1: #2-#3-#4 #5${#2/#3/#4}
+  \xdef\fileversion{1.1}
+  \xdef\filerevision{\ProductBox@VC$Revision: 8333 $}
+  \xdef\filedate{\ProductBox@VCdate
+    $Date: 2010-12-29 20:58:06 +0100 (Mi, 29 Dez 2010) $}
+  \xdef\filename{productbox.dtx}
+\endgroup
+\NeedsTeXFormat{LaTeX2e}
+\ProvidesPackage{productbox}[\filedate Another type of boxes...]
+\RequirePackage{keyval}
+\RequirePackage{tikz}
+\usetikzlibrary{calc}
+\usetikzlibrary{fadings}
+\define@key{ProductBox}{scale}{%
+  \def\ProductBox@scale{#1}}
+\define@key{ProductBox}{width}{%
+  \def\ProductBox@x{#1}}
+\define@key{ProductBox}{height}{%
+  \def\ProductBox@y{#1}}
+\define@key{ProductBox}{depth}{%
+  \def\ProductBox@z{#1}}
+\define@key{ProductBox}{clean}[true]{%
+  \csname ProductBox@clean#1\endcsname}
+\define@key{ProductBox}{flat}[true]{%
+  \def\ProductBox@style{flat}}
+\define@key{ProductBox}{fold}[true]{%
+  \def\ProductBox@style{fold}}
+\define@key{ProductBox}{3d}[true]{%
+  \def\ProductBox@style{threeD}}
+\define@key{ProductBox}{3D}[true]{%
+  \def\ProductBox@style{threeD}}
+\define@key{ProductBox}{threeD}[true]{%
+  \def\ProductBox@style{threeD}}
+\define@key{ProductBox}{top}[true]{%
+  \def\ProductBox@style{top}}
+\define@key{ProductBox}{bottom}[true]{%
+  \def\ProductBox@style{bottom}}
+\define@key{ProductBox}{front}[true]{%
+  \def\ProductBox@style{front}}
+\define@key{ProductBox}{back}[true]{%
+  \def\ProductBox@style{back}}
+\define@key{ProductBox}{left}[true]{%
+  \def\ProductBox@style{left}}
+\define@key{ProductBox}{right}[true]{%
+  \def\ProductBox@style{right}}
+\define@key{ProductBox}{empty}[true]{%
+  \def\ProductBox@style{empty}}
+\define@key{ProductBox}{style}{%
+  \def\ProductBox@style{#1}}
+\define@key{ProductBox}{shadow}[true]{%
+  \csname ProductBox@shadow#1\endcsname}
+\define@key{ProductBox}{mirror}[true]{%
+  \csname ProductBox@mirror#1\endcsname}
+\define@key{ProductBox}{flare}[true]{%
+  \csname ProductBox@flare#1\endcsname}
+\define@key{ProductBox}{flareDiameter}{%
+  \def\ProductBox@flareDiameter{#1}}
+\define@key{ProductBox}{edgeColor}{%
+  \def\productBox@edgeColor{#1}}
+\define@key{ProductBox}{view}{%
+  \@nameuse{ProductBox@View@#1}}
+\define@key{ProductBox}{earSize}{%
+  \def\ProductBox@earSize{#1}}
+\define@key{ProductBox}{foldLine}{%
+  \def\ProductBox@foldLine{#1}}
+\define@key{ProductBox}{foldOpacity}{%
+  \def\ProductBox@foldOpacity{#1}}
+\define@key{ProductBox}{faceSep}{%
+  \def\ProductBox@FaceSep{#1}}
+\newbox\ProductBox@Front
+\newbox\ProductBox@Left
+\newbox\ProductBox@Top
+\newbox\ProductBox@Right
+\newbox\ProductBox@Bottom
+\newbox\ProductBox@Back
+\newcommand\ProductBoxSet[1]{\setkeys{ProductBox}{#1}}
+\newcommand\ProductBox@style{threeD}
+\newcommand\ProductBox@x{88mm}
+\newcommand\ProductBox@y{100mm}
+\newcommand\ProductBox@z{30mm}
+\newif\ifProductBox@clean
+\newif\ifProductBox@active
+\newif\ifProductBox@clip \ProductBox@cliptrue
+\newcommand\ProductBox@FaceSep{1em}
+\newenvironment{ProductBox}[1][]{%
+  \setkeys{ProductBox}{#1}%
+  \ifProductBox@clean
+    \global\setbox\ProductBox@Front\hbox{}%
+    \global\setbox\ProductBox@Back\hbox{}%
+    \global\setbox\ProductBox@Left\hbox{}%
+    \global\setbox\ProductBox@Right\hbox{}%
+    \global\setbox\ProductBox@Top\hbox{}%
+    \global\setbox\ProductBox@Bottom\hbox{}%
+  \fi
+  \ifProductBox@active
+    \errmessage{Trying to use an environment ProductBox inside the
+      environment ProductBox. This is not allowed.}%
+  \else
+    \ProductBox@activetrue
+  \fi
+  \let\Front\undefined            \let\endFront\undefined
+  \let\Back\undefined             \let\endBack\undefined
+  \let\Left\undefined             \let\endLeft\undefined
+  \let\Right\undefined            \let\endRight\undefined
+  \let\Top\undefined              \let\endTop\undefined
+  \let\Bottom\undefined           \let\endBottom\undefined
+  \let\FrontFace\undefined        \let\endFrontFace\undefined
+  \let\BackFace\undefined         \let\endBackFace\undefined
+  \let\LeftFace\undefined         \let\endLeftFace\undefined
+  \let\RightFace\undefined        \let\endRightFace\undefined
+  \let\TopFace\undefined          \let\endTopFace\undefined
+  \let\BottomFace\undefined       \let\endBottomFace\undefined
+  \newenvironment{Front}{\ProductBox@Start\ProductBox@Front
+    (\ProductBox@x,\ProductBox@y)}{\ProductBox@End}%
+  \newenvironment{Back}{\ProductBox@Start\ProductBox@Back
+    (\ProductBox@x,\ProductBox@y)}{\ProductBox@End}%
+  \newenvironment{Left}{\ProductBox@Start\ProductBox@Left
+    (\ProductBox@z,\ProductBox@y)}{\ProductBox@End}%
+  \newenvironment{Right}{\ProductBox@Start\ProductBox@Right
+    (\ProductBox@z,\ProductBox@y)}{\ProductBox@End}%
+  \newenvironment{Top}{\ProductBox@Start\ProductBox@Top
+    (\ProductBox@x,\ProductBox@z)}{\ProductBox@End}%
+  \newenvironment{Bottom}{\ProductBox@Start\ProductBox@Bottom(
+    \ProductBox@x,\ProductBox@z)}{\ProductBox@End}%
+  \newenvironment{FrontFace}[1][white]{\ProductBox@StartFace\ProductBox@Front
+    {\ProductBox@x}{\ProductBox@y}{##1}}{\ProductBox@EndFace}%
+  \newenvironment{BackFace}[1][white]{\ProductBox@StartFace\ProductBox@Back
+    {\ProductBox@x}{\ProductBox@y}{##1}}{\ProductBox@EndFace}%
+  \newenvironment{LeftFace}[1][white]{\ProductBox@StartFace\ProductBox@Left
+    {\ProductBox@z}{\ProductBox@y}{##1}}{\ProductBox@EndFace}%
+  \newenvironment{RightFace}[1][white]{\ProductBox@StartFace\ProductBox@Right
+    {\ProductBox@z}{\ProductBox@y}{##1}}{\ProductBox@EndFace}%
+  \newenvironment{TopFace}[1][white]{\ProductBox@StartFace\ProductBox@Top
+    {\ProductBox@x}{\ProductBox@z}{##1}}{\ProductBox@EndFace}%
+  \newenvironment{BottomFace}[1][white]{\ProductBox@StartFace\ProductBox@Bottom
+    {\ProductBox@x}{\ProductBox@z}{##1}}{\ProductBox@EndFace}%
+  \ignorespacesafterend
+}{%
+  \@ifundefined{ProductBox@style@\ProductBox@style}{%
+    \errmessage{Box style '\ProductBox@style' for ProductBox is unknown}%
+  }{%
+    \@ifundefined{ProductBox@scale}{%
+      \@nameuse{ProductBox@style@\ProductBox@style}}{%
+      \scalebox{\ProductBox@scale}%
+               {\@nameuse{ProductBox@style@\ProductBox@style}}
+    }}%
+  \ProductBox@activefalse
+  \ignorespacesafterend
+}
+\def\ProductBox@Start#1(#2){%
+  \global\setbox#1\hbox\bgroup\begin{tikzpicture}%
+    \ifProductBox@clip \clip rectangle (#2); \fi
+  }%
+\newcommand\ProductBox@End{\end{tikzpicture}\egroup\ignorespacesafterend}
+\newcommand\ProductBox@StartFace[4]{%
+  \let\ProductBox@@box#1%
+  \def\ProductBox@@w{#2}%
+  \def\ProductBox@@h{#3}%
+  \def\ProductBox@@args{[#4]}%
+  \@tempdima=#2
+  \advance\@tempdima-\ProductBox@FaceSep
+  \advance\@tempdima-\ProductBox@FaceSep
+  \setbox#1\hbox\bgroup\begin{minipage}{\the\@tempdima}%
+    \ignorespaces
+}
+\newcommand\ProductBox@EndFace{\end{minipage}\egroup
+    \global\setbox\ProductBox@@box=\hbox{\begin{tikzpicture}
+    \ifProductBox@clip \clip rectangle (\ProductBox@@w,\ProductBox@@h); \fi
+    \expandafter\fill \ProductBox@@args rectangle(\ProductBox@@w,\ProductBox@@h);
+    \draw (.5*\ProductBox@@w,.5*\ProductBox@@h)
+      node[inner sep=0pt] {\box\ProductBox@@box};
+    \end{tikzpicture}}\ignorespacesafterend}
+\newcommand\ProductBox@style@empty{}
+\newcommand\ProductBox@style@flat{%
+  \par\noindent
+  \hspace*{\ProductBox@z}\kern1mm \copy\ProductBox@Top\\[1ex]
+  \copy\ProductBox@Left\kern1mm \copy\ProductBox@Front\kern1mm
+  \copy\ProductBox@Right\kern1mm \copy\ProductBox@Back\\[1ex]
+  \hspace*{\ProductBox@z}\kern1mm \copy\ProductBox@Bottom\par
+}
+\newcommand\ProductBox@style@front{%
+  \copy\ProductBox@Front
+}
+\newcommand\ProductBox@style@back{%class
+  \copy\ProductBox@Back
+}
+\newcommand\ProductBox@style@left{%
+  \copy\ProductBox@Left
+}
+\newcommand\ProductBox@style@right{%
+  \copy\ProductBox@Right
+}
+\newcommand\ProductBox@style@top{%
+  \copy\ProductBox@Top
+}
+\newcommand\ProductBox@style@bottom{%
+  \copy\ProductBox@Bottom
+}
+\newcommand\ProductBox@earSize{12mm}
+\newcommand\ProductBox@foldLine{white!80!black}
+\newcommand\ProductBox@foldOpacity{.5}
+\newcommand\ProductBox@style@fold{%
+  \begin{tikzpicture}[sw/.style={anchor=south west,
+                                 inner sep=0pt},
+                      se/.style={anchor=south east,
+                                 inner sep=0pt},
+                      nw/.style={anchor=north west,
+                                 inner sep=0pt},
+                      num/.style={circle,
+                                  fill=white!90!black,
+                                  fill opacity=.5,
+                                  font=\tiny\bfseries\sffamily}]
+    \begin{scope}
+      \clip rectangle (\ProductBox@z,\ProductBox@y);
+      \draw node[sw]{\copy\ProductBox@Left};
+      \draw[thin,opacity=\ProductBox@foldOpacity,\ProductBox@foldLine]
+        rectangle (\ProductBox@z,\ProductBox@y);
+    \end{scope}
+    \begin{scope}[xshift=\ProductBox@z]
+      \clip rectangle (\ProductBox@x,\ProductBox@y);
+      \draw node[sw]{\copy\ProductBox@Front};
+      \draw[thin,opacity=\ProductBox@foldOpacity,\ProductBox@foldLine]
+        rectangle (\ProductBox@x,\ProductBox@y);
+    \end{scope}
+    \begin{scope}[xshift=\ProductBox@z+\ProductBox@x]
+      \clip rectangle (\ProductBox@z,\ProductBox@y);
+      \draw node[sw]{\copy\ProductBox@Right};
+      \draw[thin,opacity=\ProductBox@foldOpacity,\ProductBox@foldLine]
+        rectangle (\ProductBox@z,\ProductBox@y);
+    \end{scope}
+    \begin{scope}[xshift=\ProductBox@x+2*\ProductBox@z]
+      \clip rectangle (\ProductBox@x,\ProductBox@y);
+      \draw node[sw]{\copy\ProductBox@Back};
+      \draw[thin,opacity=\ProductBox@foldOpacity,\ProductBox@foldLine]
+         rectangle (\ProductBox@x,\ProductBox@y);
+    \end{scope}
+    \begin{scope}[xshift=\ProductBox@z,yshift=\ProductBox@y]
+      \clip rectangle (\ProductBox@x,\ProductBox@z);
+      \draw node[sw]{\copy\ProductBox@Top};
+      \draw[thin,opacity=\ProductBox@foldOpacity,\ProductBox@foldLine]
+        rectangle (\ProductBox@x,\ProductBox@z);
+    \end{scope}
+    \begin{scope}[xshift=\ProductBox@z]
+      \clip
+        (0mm,0mm) -- (.5*\ProductBox@z,-.5*\ProductBox@z) --
+        (.5*\ProductBox@z,-\ProductBox@z) --
+        (\ProductBox@x-.5*\ProductBox@z,-\ProductBox@z) --
+        (\ProductBox@x-.5*\ProductBox@z,-.5*\ProductBox@z) --
+        (\ProductBox@x,0mm) -- cycle;
+      \draw (\ProductBox@x,-\ProductBox@z)
+        node[se]{\copy\ProductBox@Bottom};
+      \draw [thin,opacity=\ProductBox@foldOpacity,\ProductBox@foldLine]
+        (0mm,0mm) -- (.5*\ProductBox@z,-.5*\ProductBox@z) --
+        (.5*\ProductBox@z,-\ProductBox@z) --
+        (\ProductBox@x-.5*\ProductBox@z,-\ProductBox@z) --
+        (\ProductBox@x-.5*\ProductBox@z,-.5*\ProductBox@z) --
+        (\ProductBox@x,0mm) -- cycle;
+      \draw (.5*\ProductBox@x,-.75*\ProductBox@z) node[num]{3};
+    \end{scope}
+    \begin{scope}[xshift=\ProductBox@x+2*\ProductBox@z]
+      \clip
+        (0mm,0mm) -- (0mm,-\ProductBox@z) --
+        (.5*\ProductBox@z,-\ProductBox@z) --
+        (.5*\ProductBox@z,-.5*\ProductBox@z) --
+        (\ProductBox@x-.5*\ProductBox@z,-.5*\ProductBox@z) --
+        (\ProductBox@x-.5*\ProductBox@z,-\ProductBox@z) --
+        (\ProductBox@x,-\ProductBox@z) -- (\ProductBox@x,0mm) --
+        cycle;
+      \draw node[se,rotate=180]{\copy\ProductBox@Bottom};
+      \draw[thin,opacity=\ProductBox@foldOpacity,\ProductBox@foldLine]
+        (0mm,0mm) -- (0mm,-\ProductBox@z) --
+        (.5*\ProductBox@z,-\ProductBox@z) --
+        (.5*\ProductBox@z,-.5*\ProductBox@z) --
+        (\ProductBox@x-.5*\ProductBox@z,-.5*\ProductBox@z) --
+        (\ProductBox@x-.5*\ProductBox@z,-\ProductBox@z) --
+        (\ProductBox@x,-\ProductBox@z) -- (\ProductBox@x,0mm) --
+        cycle;
+      \draw (.25*\ProductBox@z,-.75*\ProductBox@z) node[num]{1};
+      \draw (\ProductBox@x-.25*\ProductBox@z,-.75*\ProductBox@z)
+        node[num]{1};
+    \end{scope}
+    \begin{scope}[xshift=\ProductBox@z+\ProductBox@x]
+      \clip
+        (0mm,0mm) -- (\ProductBox@z,0mm) --
+        (.5*\ProductBox@z,-.5*\ProductBox@z) --
+        (.5*\ProductBox@z,-\ProductBox@z) -- (0mm,-\ProductBox@z) --
+        cycle;
+      \draw (\ProductBox@z,0mm)
+        node[se,rotate=90]{\copy\ProductBox@Bottom};
+      \draw[thin,opacity=\ProductBox@foldOpacity,\ProductBox@foldLine]
+        (0mm,0mm) -- (\ProductBox@z,0mm) --
+        (.5*\ProductBox@z,-.5*\ProductBox@z) --
+        (.5*\ProductBox@z,-\ProductBox@z) -- (0mm,-\ProductBox@z) --
+        cycle;
+      \draw (.25*\ProductBox@z,-.75*\ProductBox@z) node[num]{2};
+    \end{scope}
+    \begin{scope}
+      \clip
+        (0mm,0mm) -- (\ProductBox@z,0mm) --
+        (\ProductBox@z,-\ProductBox@z) --
+        (.5*\ProductBox@z,-\ProductBox@z) --
+        (.5*\ProductBox@z,-.5*\ProductBox@z) -- cycle;
+      \draw
+        node[sw,rotate=270]{\copy\ProductBox@Bottom};
+      \draw [thin,opacity=\ProductBox@foldOpacity,\ProductBox@foldLine]
+        (0mm,0mm) -- (\ProductBox@z,0mm) --
+        (\ProductBox@z,-\ProductBox@z) --
+        (.5*\ProductBox@z,-\ProductBox@z) --
+        (.5*\ProductBox@z,-.5*\ProductBox@z) -- cycle;
+      \draw (.75*\ProductBox@z,-.75*\ProductBox@z) node[num]{2};
+    \end{scope}
+    \begin{scope}[xshift=2*\ProductBox@x+2*\ProductBox@z]
+      \clip
+        (0mm,0mm) -- (\ProductBox@earSize/2,\ProductBox@earSize/4) --
+        (\ProductBox@earSize/2,\ProductBox@y-\ProductBox@earSize/4) --
+        (0mm,\ProductBox@y) -- cycle;
+      \draw node[sw]{\copy\ProductBox@Left};
+      \draw[thin,opacity=\ProductBox@foldOpacity,\ProductBox@foldLine]
+        (0mm,0mm) -- (\ProductBox@earSize/2,\ProductBox@earSize/4) --
+        (\ProductBox@earSize/2,\ProductBox@y-\ProductBox@earSize/4) --
+        (0mm,\ProductBox@y) -- cycle;
+    \end{scope}
+    \begin{scope}[yshift=\ProductBox@y]
+      \clip
+        (0mm,0mm) -- (\ProductBox@earSize/2,\ProductBox@earSize) --
+        (\ProductBox@z-\ProductBox@earSize/2,\ProductBox@earSize) --
+        (\ProductBox@z,0mm) -- cycle;
+      \draw node[nw,rotate=90]{\copy\ProductBox@Top};
+      \draw[thin,opacity=\ProductBox@foldOpacity,\ProductBox@foldLine]
+        (0mm,0mm) -- (\ProductBox@earSize/2,\ProductBox@earSize) --
+        (\ProductBox@z-\ProductBox@earSize/2,\ProductBox@earSize) --
+        (\ProductBox@z,0mm) -- cycle;
+    \end{scope}
+    \begin{scope}[xshift=\ProductBox@x+\ProductBox@z,
+                  yshift=\ProductBox@y]
+      \clip
+        (0mm,0mm) -- (\ProductBox@earSize/2,\ProductBox@earSize) --
+        (\ProductBox@z-\ProductBox@earSize/2,\ProductBox@earSize) --
+        (\ProductBox@z,0mm) -- cycle;
+      \draw node[se,rotate=270]{\copy\ProductBox@Top};
+      \draw[thin,opacity=\ProductBox@foldOpacity,\ProductBox@foldLine]
+        (0mm,0mm) -- (\ProductBox@earSize/2,\ProductBox@earSize) --
+        (\ProductBox@z-\ProductBox@earSize/2,\ProductBox@earSize) --
+        (\ProductBox@z,0mm) -- cycle;
+    \end{scope}
+    \begin{scope}[xshift=\ProductBox@z,
+                  yshift=\ProductBox@y+\ProductBox@z]
+      \clip
+        (0mm,0mm) -- (\ProductBox@earSize/2,\ProductBox@earSize) --
+        (\ProductBox@x-\ProductBox@earSize/2,\ProductBox@earSize) --
+        (\ProductBox@x,0mm) -- cycle;
+      \draw (0mm,\ProductBox@y)
+        node[se,rotate=180]{\copy\ProductBox@Back};
+      \draw[thin,opacity=\ProductBox@foldOpacity,\ProductBox@foldLine]
+        (0mm,0mm) -- (\ProductBox@earSize/2,\ProductBox@earSize) --
+        (\ProductBox@x-\ProductBox@earSize/2,\ProductBox@earSize) --
+        (\ProductBox@x,0mm) -- cycle;
+    \end{scope}
+  \end{tikzpicture}}
+\newcommand\ProductBoxThreeDStartHook{}
+\newcommand\ProductBoxThreeDEndHook{}
+\newif\ifProductBox@shadow \ProductBox@shadowtrue
+\newif\ifProductBox@mirror
+\newif\ifProductBox@flare
+\newcommand\ProductBox@edgeColor{white}
+\newcommand\ProductBox@flareDiameter{24mm}
+\newcommand\ProductBox@angleZ{8}
+\newcommand\ProductBox@angleX{10}
+\newcommand\ProductBox@style@threeD{
+  \begin{tikzpicture}[sw/.style={anchor=south west,
+                                 inner sep=0pt}]
+    \ProductBoxThreeDStartHook
+    \ifProductBox@mirror \ProductBox@threeD@mirror \fi
+    \ifProductBox@shadow \ProductBox@threeD@shadow \fi
+
+    \begin{scope}
+      \fill[white,
+            yslant=\ProductBox@p@front@yslant,
+            xscale=\ProductBox@p@front@xscale,
+            yscale=\ProductBox@p@front@yscale,
+            anchor=south west]
+        rectangle (\ProductBox@x,\ProductBox@y);
+      \draw
+        node[sw,
+             yslant=\ProductBox@p@front@yslant,
+             xscale=\ProductBox@p@front@xscale,
+             yscale=\ProductBox@p@front@yscale]
+            {\copy\ProductBox@Front};
+      \fill[black,
+            fill opacity=.025,
+            yslant=\ProductBox@p@front@yslant,
+            xscale=\ProductBox@p@front@xscale,
+            yscale=\ProductBox@p@front@yscale,
+            anchor=south west]
+        rectangle (\ProductBox@x,\ProductBox@y);
+      \ifProductBox@flare
+        \begin{scope}[
+            yslant=\ProductBox@p@front@yslant,
+            xscale=\ProductBox@p@front@xscale,
+            yscale=\ProductBox@p@front@yscale]
+          \clip rectangle(\ProductBox@x,\ProductBox@y);
+          \ProductBox@threeD@flare
+        \end{scope}
+      \fi
+    \end{scope}
+    \begin{scope}[shift={(-\ProductBox@p@left@xscale*\ProductBox@z,
+                          \ProductBox@p@left@yslant
+                             *\ProductBox@p@left@xscale
+                             *\ProductBox@z)}]
+      \fill[white,
+            yslant=-\ProductBox@p@left@yslant,
+            xscale=\ProductBox@p@left@xscale,
+            yscale=\ProductBox@p@left@yscale,
+            anchor=south west]
+        rectangle (\ProductBox@z,\ProductBox@y);
+      \draw
+        node[sw,
+             yslant=-\ProductBox@p@left@yslant,
+             xscale=\ProductBox@p@left@xscale,
+             yscale=\ProductBox@p@left@yscale]
+            {\copy\ProductBox@Left};
+      \fill[black,
+            fill opacity=.25,
+            yslant=-\ProductBox@p@left@yslant,
+            xscale=\ProductBox@p@left@xscale,
+            yscale=\ProductBox@p@left@yscale,
+            anchor=south west]
+        rectangle (\ProductBox@z,\ProductBox@y);
+    \end{scope}
+    \begin{scope}[yshift=\ProductBox@y]
+      \fill [white,
+             anchor=south west,
+             xslant=-\ProductBox@p@top@xslant,
+             xscale=\ProductBox@p@top@xscale,
+             yslant=\ProductBox@p@top@yslant,
+             yscale=\ProductBox@p@top@yscale]
+        rectangle (\ProductBox@x,\ProductBox@z);
+      \draw
+        node[sw,
+             xslant=-\ProductBox@p@top@xslant,
+             xscale=\ProductBox@p@top@xscale,
+             yslant=\ProductBox@p@top@yslant,
+             yscale=\ProductBox@p@top@yscale]
+            {\copy\ProductBox@Top};
+      \fill [black,
+             fill opacity=.0025,
+             anchor=south west,
+             xslant=-\ProductBox@p@top@xslant,
+             xscale=\ProductBox@p@top@xscale,
+             yslant=\ProductBox@p@top@yslant,
+             yscale=\ProductBox@p@top@yscale]
+         rectangle (\ProductBox@x,\ProductBox@z);
+    \end{scope}
+    \begin{scope}[shift={(-\ProductBox@p@left@xscale*\ProductBox@z,
+        \ProductBox@p@left@yslant*\ProductBox@p@left@xscale*\ProductBox@z)}]
+      \draw [\ProductBox@edgeColor,
+             line width=.5mm,
+             draw opacity=.25,
+             yslant=-\ProductBox@p@left@yslant,
+             xscale=\ProductBox@p@left@xscale]
+        (\ProductBox@z,0mm) --
+        (\ProductBox@z,\ProductBox@y) --
+        (0mm,\ProductBox@y);
+    \end{scope}
+    \draw [\ProductBox@edgeColor,
+           line width=.5mm,
+           draw opacity=.25,
+           yslant=\ProductBox@p@front@yslant,
+           xscale=\ProductBox@p@front@xscale,
+           anchor=south west]
+      (0mm,\ProductBox@y) -- (\ProductBox@x,\ProductBox@y);
+    \ProductBoxThreeDEndHook
+  \end{tikzpicture}}
+\newcommand\ProductBox@setFrontParams[3]{%
+  \def\ProductBox@p@front@yslant{#1}%
+  \def\ProductBox@p@front@xscale{#2}%
+  \def\ProductBox@p@front@yscale{#3}%
+}
+\newcommand\ProductBox@setLeftParams[3]{%
+  \def\ProductBox@p@left@yslant{#1}%
+  \def\ProductBox@p@left@xscale{#2}%
+  \def\ProductBox@p@left@yscale{#3}%
+}
+\newcommand\ProductBox@setTopParams[4]{%
+  \def\ProductBox@p@top@xslant{#1}%
+  \def\ProductBox@p@top@yslant{#2}%
+  \def\ProductBox@p@top@xscale{#3}%
+  \def\ProductBox@p@top@yscale{#4}%
+}
+\newcommand\ProductBox@setMirrorParams[1]{%
+  \def\ProductBox@p@mirror@yscale{#1}%
+}
+\@namedef{ProductBox@View@1}{%
+  \ProductBox@setFrontParams{.25}{.9090909}{1}%
+  \ProductBox@setLeftParams{.5}{.6666666}{1}%
+  \ProductBox@setTopParams{2}{.2265}{1.363}{.3333333}%
+  \ProductBox@setMirrorParams{.4}}
+\@namedef{ProductBox@View@2}{%
+  \ProductBox@setFrontParams{.15}{.9090909}{1}%
+  \ProductBox@setLeftParams{.6666666}{.5}{1}%
+  \ProductBox@setTopParams{1.5}{.12}{1.11}{.333333}%
+  \ProductBox@setMirrorParams{.4}}
+\@namedef{ProductBox@View@3}{%
+  \ProductBox@setFrontParams{.05}{.95}{1}%
+  \ProductBox@setLeftParams{.25}{.4}{1}%
+  \ProductBox@setTopParams{4}{.04}{1.133333}{.1}%
+  \ProductBox@setMirrorParams{.4}}
+\@nameuse{ProductBox@View@1}
+\newcommand\ProductBox@threeD@shadow{
+    \begin{scope}
+      \foreach \x in {.5,1,1.5,2,2.5,3,4,5,6,8,10} {
+        \filldraw [black,
+                   line width=\x mm,
+                   rounded corners=2mm,
+                   opacity=.01,
+                   shift={(-1mm,1mm)}]
+          (0mm,0mm) --
+          (-\ProductBox@p@top@xslant
+           *\ProductBox@p@left@xscale
+           *\ProductBox@z,
+           \ProductBox@p@top@yscale
+           *\ProductBox@z) --
+          (0mm,
+           \ProductBox@p@top@yscale*\ProductBox@z +
+           \ProductBox@p@top@xslant
+           *\ProductBox@p@left@xscale
+           *\ProductBox@p@top@yslant
+           *\ProductBox@z) --
+          cycle;
+      }
+    \end{scope}
+}
+\tikzfading[name=ProductBoxFade,
+            top color=transparent!100,
+            bottom color=transparent!50,
+            middle color=transparent!100]
+\newcommand\ProductBox@threeD@mirror{%
+  \fill
+    node[anchor=south west,
+         inner sep=0pt,
+         yslant=\ProductBox@p@front@yslant,
+         xscale=\ProductBox@p@front@xscale,
+         yscale=-\ProductBox@p@mirror@yscale]
+      {\begin{tikzpicture}
+            \clip rectangle (\ProductBox@x,
+                             \ProductBox@y*\ProductBox@p@mirror@yscale);
+            \fill node [scope fading=ProductBoxFade,
+                        yscale=\ProductBox@p@mirror@yscale,
+                        inner sep=0pt]{\copy\ProductBox@Front};
+          \end{tikzpicture}};
+  \fill[xshift=-\ProductBox@p@left@xscale*\ProductBox@z,
+        yshift=\ProductBox@p@top@yscale*\ProductBox@z]
+    node[anchor=south west,
+         inner sep=0pt,
+         yslant=-\ProductBox@p@left@yslant,
+         xscale=\ProductBox@p@left@xscale,
+         yscale=-\ProductBox@p@mirror@yscale]
+      {\begin{tikzpicture}
+         \clip rectangle (\ProductBox@z,
+                          \ProductBox@y*\ProductBox@p@mirror@yscale);
+         \fill node [scope fading=ProductBoxFade,
+                     yscale=\ProductBox@p@mirror@yscale,
+                     inner sep=0pt]{\copy\ProductBox@Left};
+
+       \end{tikzpicture}};
+}
+\newcommand\ProductBox@threeD@flare{
+  \fill [white,path fading=ProductBoxFlare]
+    (.8*\ProductBox@x,.9*\ProductBox@y)
+    circle(\ProductBox@flareDiameter);
+}
+\tikzfading[name=ProductBoxFlare,
+            inner color=transparent!60,
+            outer color=transparent!100]
+\@namedef{ProductBox@style@3D}{\ProductBox@style@threeD}
+\@namedef{ProductBox@style@3d}{\ProductBox@style@threeD}
+\endinput
+%%
+%% End of file `productbox.sty'.