Graphics, Figures & Tables ⇒ Determining Size of Image prior to its Display

[ceke]

Hej,

I'm using the graphicx package to include pictures into a slide presentation.

The following works fine:

Code: Select all

\includegraphics[width=\textwidth,height=.75\textheight,keepaspectratio]{figure.png}

This automatically makes the figure fill the "printable" area.

What I would like to do, though, is to use the above call within a {minipage} environment, and I would like to adjust the width of the {minipage} relative to the width of the scaled image.

So, is there a way of determining the width a picture will have, prior to actually including it, so that I can create the {minipage}?

Many thanks in advance,
/Johan

[localghost]

You are probably looking for something like the varwidth package.


Thorsten

[ceke]

Hej,

That could have been exactly what I was looking for. Unfortunately it does not work.

I'm using Beamer and would like to do some customized block environment, for example to show a boxed image, automatically scaled to fit the slide. Problem is that the \begin{block}...\end{block} automatically spans the whole \textwidth. Placing it in a minipage enabled me to limit the width. With the varwidth environment this does not work.

My best bet now is to find the original definition of the block environment and modify it. Any ideas of in which file (in Beamer) this is defined?

/Johan

[Stefan Kottwitz]

Hi Johan,

have a look at my post here: Beamer block width.

Stefan

[ceke]

PROBLEM SOLVED!

So, this is how I did it, Beamer lingo:

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\newlength{\mywidth}

% Just find out the width of the image after scaling, don't actually show it
\settowidth{\mywidth}{\includegraphics[width=\textwidth,height=.75\textheight,keepaspectratio]{myimage.jpg}}

% Now build the beamer block with the width determined above and place image
\begin{minipage}{\mywidth}
  \begin{block}{}
     \includegraphics[width=\mywidth]{myimage.jpg}
  \end{block}
\end{minipage}