[Tex/LaTex] scale in graphicx don´t work when width set with setkeys

graphicstufte

I am editing a document using graphicx with width options set by setkey, as in

\setkeys{Gin}{width=\linewidth,totalheight=\textheight,keepaspectratio}

The problem is that when I want to specifically resize a picture with scale option, it does not work. Therefore

\includegraphics[scale=0.5]{anypic.png}

Has no effect at all. It seems to be overriden by the width.

There is any way to make graphicx forget the width for one specific figure?

Obs: resetting the width of the figure works, but I would like to avoid measuring figures.

Best Answer

You can use an exclamation to reset the width and height values:

\documentclass{article}
\usepackage{graphicx}

\setkeys{Gin}{width=\linewidth,totalheight=\textheight,keepaspectratio}

\begin{document}
\includegraphics[scale=0.5]{example-image-A}

\includegraphics[width=!,totalheight=!,scale=0.5]{example-image-A}
\end{document}

Related Solutions

[Tex/LaTex] Use \setkeys{Gin} to set default scale value doesn’t work

The width key of graphicx sets a macro which then stays valid for the rest of the scope, while scale modifies the internal token register used to accumulate the required code for the current image. This token register is reset at the begin of the internal \includegraphics code and therefore any previous changes are lost. Anyway, the order of the keys and the code they put into the token register is very meaningful and so global settings wouldn't work. The temporary(!) token register first has to be initialized properly.

I studied graphics/x a lot for my adjustbox package which uses the same technique and which most keys can also be used for \includegraphics, if the export option was used. I'm planning to provide macros to allow for such kind of global settings. These would then simply store the keys and insert it to the list of \includegraphics or \adjustbox keys. In the meantime you could use some code like this:

\newcommand{\globalinclgrphkeys}{scale=0.5}

% ...

\expandafter\includegraphics\expandafter[\globalinclgrphkeys,<other options]{<file>}

or directly:

\newcommand{\myincludegraphics}[2][]{%
    \includegraphics[scale=0.5,#1]{#2}%
}

Update 31. Oct 2011:

Using the new version 0.7 from 2011/10/30 you could use \adjustboxset{scale=0.5} to set a global scale key for all \adjustbox macros. Then use \adjustimage{<other options>}{<filename>} instead of the usual \includegraphics[<options>]{<filename>}.

[Tex/LaTex] scale column width with image width

It's unclear if you want to use overlays; if you don't, here's the definition of an environment that does the necessary computations. I add also a “less automatized” solution.

\documentclass{beamer}
\usepackage{mwe}

\newlength{\mycolwidth}
\newsavebox{\mycolwidthbox}
%% Better way
\newenvironment{picturecolumn}[2][]
 {\sbox\mycolwidthbox{\includegraphics[#1]{#2}}%
  \setlength{\mycolwidth}{\wd\mycolwidthbox}%
  \begin{columns}
  \begin{column}{\dimexpr\textwidth-\mycolwidth}
  \centering}
 {\end{column}
  \begin{column}{\mycolwidth}
  \usebox{\mycolwidthbox}
  \end{column}
  \end{columns}}

%% Simpler way
\newcommand{\setmycolwidth}[2][]{%
  \settowidth{\mycolwidth}{\includegraphics[#1]{#2}}%
}

\begin{document}
\begin{frame}

\begin{picturecolumn}[height=\dimexpr\paperheight-5pt]{example-image-golden-upright}
\centering
centered text\\
spanning multiple lines
\end{picturecolumn}
\end{frame}

\begin{frame}

\setmycolwidth[height=\paperheight]{example-image-golden-upright}

\begin{columns}
\begin{column}{\dimexpr\textwidth-\mycolwidth}
\centering
centered text\\
spanning multiple lines
\end{column}
\begin{column}{\mycolwidth}
\includegraphics[height=\paperheight]{example-image-golden-upright}
\end{column}
\end{columns}
\end{frame}

\end{document}

enter image description here

Best Answer

Related Solutions

[Tex/LaTex] Use \setkeys{Gin} to set default scale value doesn’t work

Update 31. Oct 2011:

[Tex/LaTex] scale column width with image width

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