Practical use of Lua

kleberj 19. June 2016 0 Comments

There was a question on tex.sx about the practical use of Lua in LaTeX. One example is getmap.sty!

% compile with pdflatex -shell-escape
\documentclass{article}
\usepackage[latin1]{inputenc}
\usepackage{graphicx}
\usepackage{filecontents}
% use overwrite while optimizing the image
\usepackage[overwrite,mode=gm]{getmap}
\begin{document}
\begin{filecontents*}{berlin.epl}
&path=weight:5|color:purple|enc:_xq_IcgrpA?AFE@?^BFE@A^U@CLQXEZU?gCR?B?DBF@@?vA?D?D?BAHE@JBN@JLGFCG[DC~C?@?F?R?vA?p@iB@i@Fe@JWRSTOf@Gh@C^A?e@?gE?w@r@?lB@hA?`@??M?aA?]dI??O?O?Cn@cBfBeF|AeEHNVNBc@H@H_AEwA?OAMNA@N
\end{filecontents*}
\getmap[file=berlin, language=de, xsize=400, ysize=600,
        markers={&markers=size:mid|label:H|color:green|Berlin, Hbf
                 &markers=label:B|color:blue|Brandenburger Tor, Berlin},
        pathfile={berlin.epl}]{}
\includegraphics[width=6cm]{berlin}
\end{document}

% compile with pdflatex -shell-escape

\documentclass{article}

\usepackage[latin1]{inputenc}

\usepackage{graphicx}

\usepackage{filecontents}

% use overwrite while optimizing the image

\usepackage[overwrite,mode=gm]{getmap}

\begin{document}

\begin{filecontents*}{berlin.epl}

&path=weight:5|color:purple|enc:_xq_IcgrpA?AFE@?^BFE@A^U@CLQXEZU?gCR?B?DBF@@?vA?D?D?BAHE@JBN@JLGFCG[DC~C?@?F?R?vA?p@iB@i@Fe@JWRSTOf@Gh@C^A?e@?gE?w@r@?lB@hA?`@??M?aA?]dI??O?O?Cn@cBfBeF|AeEHNVNBc@H@H_AEwA?OAMNA@N

\end{filecontents*}

\getmap[file=berlin, language=de, xsize=400, ysize=600,

markers={&markers=size:mid|label:H|color:green|Berlin, Hbf

&markers=label:B|color:blue|Brandenburger Tor, Berlin},

pathfile={berlin.epl}]{}

\includegraphics[width=6cm]{berlin}

\end{document}

getmap.sty: practical lua