beamergraphicstikz-pgf
In a Beamer presentation, I want to put a box over a graphic file. For example, in one slide, I want to put a graphic file:
And, in the next slide, I want to put a box on the image:
This style of work was what I usually do with MS Powerpoint. I was wondering how I can do this with Beamer. If there is any other elegant way to do this with the similar purpose (i.e. pointing and emphasizing a part of images), I am open to any suggestion as well.
To import a slide from another beamer presentation as a "picture", you can use pdfpages. You'll have to \setbeamercolor{background canvas}{bg=} as explained in this answer because only a white frame will be shown otherwise:
\documentclass{beamer}
\usepackage{pdfpages}
\begin{document}
\begin{frame}
Content
\end{frame}
{
\setbeamercolor{background canvas}{bg=}
\includepdf[pages=3]{filea.pdf}
}
\end{document}
However, if you use head- or footlines or even a different theme in your existing presentation, this will probably not fit snugly. In this case, a better solution would be to actually import the source code of the existing presentation, which can be done using the docmute package in combination with the \againframe command:
Suppose this is your existing presentation filea.tex: You need to give the slides you want to import a name using the label option of the frame environment, like this:
\documentclass{beamer}
\begin{document}
\begin{frame}[label=myframe]
Frame to be included
\end{frame}
\end{document}
Then you can use this code in your new presentation:
\documentclass{beamer}
\usepackage{docmute}
\makeatletter
\newcommand*{\loadpresentation}[1]{{\beamer@inlecturefalse\input{#1}}}
\makeatother
\begin{document}
\loadpresentation{filea.tex}
\begin{frame}
The new presentation
\end{frame}
\againframe{myframe}
\end{document}
Issuing \loadpresentation{filea.tex} imports the frames from your existing presentation without displaying them. You can insert them wherever needed using \againframe with the label you chose in filea.tex. The command \loadpresentation should be used someplace after \begin{document} (but before you actually include a frame from this presentation, of course).
This works roughly the same as if you'd actually copy the source code of the frame from the existing presentation, so things like overlays etc. are taken over.
You could use the tried and tested tikzmark idea
Code
\documentclass{beamer}
\usepackage{tikz}
\usetikzlibrary{calc}
% tikzmark command, for shading over items
\newcommand{\tikzmark}[1]{\tikz[overlay,remember picture] \node (#1) {};}
\begin{document}
\begin{frame}
\begin{itemize}[<+->]
\item Software-as-a-Service?
\item Platform-as-a-Service?
\item \tikzmark{infrastructure}{Infrastructure-as-a-Service}
\item Other-stuff-as-a-Service?
\end{itemize}
\pause\tikz[overlay,remember picture]{\draw[draw=red,thick,double,fill opacity=0.2] ($(infrastructure)+(-0.5,0.4)$) rectangle ($(infrastructure)+(6,-0.2)$);}
\end{frame}
\end{document}
Best Answer
How about this: you have three commands:
\imagenodefor inserting the picture and setting up some dimensions\imagegridwhich helps putting the frame\highlightboxfor drawing the frameCode
Output