[Tex/LaTex] way to typeout the contents of \graphicspath

graphics

First of let me admit that I've very new to the LaTeX, so this may be obvious and I just do see it, but here's my question:

I'm trying to write a set of macros to automatically downsample images… sort of like degrade.sty, but for images that are inserted at arbitrary sizes in the document. What I would like to do is redefine \includegraphics so that this can be accomplished for existing documents. In order to find the intended graphics file, I need to know what paths are currently in the graphics path. Alas, I cannot figure out how to determine what those paths are. Is this possible?

Best Answer

The paths for graphics - set using \graphicspath - is stored in \Ginput@path as is indicated by \show\graphicspath and viewing the .log file:

> \graphicspath=macro:
#1->\def \Ginput@path {#1}.

\makeatletter\typeout{\Ginput@path}\makeatother will show its contents.

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[Tex/LaTex] Including pdf_tex images from inkscape

Page 2 of CTAN/info/svg-inkscape/InkscapePDFLaTeX.pdf suggests the alternative use of the import package. Assuming all three files (.PDF, .PDF_TEX, and .SVG) are in the same folder as chapter1.tex, then all you need is

\documentclass{article}

\usepackage{graphicx,import}

\begin{document}
\input{chapter1/chapter1}
\end{document}

and

\chapter{test chapter}

\begin{figure}[h!]\centering
\import{chapter1/}{peeling_flow_constant_width.pdf_tex}
\end{figure}

[Tex/LaTex] Append entries to an existing \graphicspath

The variable containing the paths is \Ginput@path, so you can define

\makeatletter
\newcommand\appendtographicspath[1]{%
  \g@addto@macro\Ginput@path{#1}%
}
\makeatother

and \appendtographicspath{{../images/}} should do. Remember the braces around the path; you can add several paths.

This addition is global. You might want to extend the macro for “prepending”; in this case, use etoolbox:

\usepackage{etoolbox}
\makeatletter
\newcommand\appendtographicspath[1]{%
  \gappto\Ginput@path{#1}%
}
\newcommand\prependtographicspath[1]{%
  \gpreto\Ginput@path{#1}%
}
\makeatother

With \appto and \preto the additions would be local, but I don't think it's good.

Best Answer

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[Tex/LaTex] Including pdf_tex images from inkscape

[Tex/LaTex] Append entries to an existing \graphicspath

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