beamer
I'm a bit of a beginner to beamer and have been using
\frame{
stuff
}
until now. Today I received a tex file to merge into my lecture material and see the use of
\begin{frame}
stuff
\end{frame}
I was just wondering if there is a difference between the two and whether I should be using the latter? Does it allow more functionality?
If you move \AtBeginSection declaration to the preamble, it will work even with ignorenonframetext option.
I've could not find any explicit reference in beameruserguide about where to place \AtBeginSection commands. But on section 3 "Tutorial: Euclid's Presentation" a conference presentation example (conference-ornate-20min.en.tex) is detailed. In it, \AtBeginSection command is placed before \begin{document} so I always used this way without any problem.
I am definitely unfamiliar with both beamer and tikz (do not quite get what the \only are supposed to do) but perhaps this could go in the direction you want:
\documentclass{beamer}
\usepackage{tikz}
\usetikzlibrary{chains}
\newcounter{count}
% helper macro:
\long\def\GobToSemiColon #1;{}
\newcommand\myPicture{
\begin{tikzpicture}
\begin{scope}[start chain = going below]
\ifnum\value{count}<1 \expandafter\GobToSemiColon\fi
\ifnum\value{count}>3 \expandafter\GobToSemiColon\fi
\node[draw, rectangle, on chain] {display only when counter is between
1 and 3};
\ifnum\value{count}>-1 \expandafter\GobToSemiColon\fi
\node[draw, rectangle, on chain] {display only when counter is
negative};
\ifnum\value{count}<100 \expandafter\GobToSemiColon\fi
\ifnum\value{count}>200 \expandafter\GobToSemiColon\fi
\node[draw, rectangle, on chain] {display only if counter is between
100 and 200};
\ifnum\value{count}<3 \expandafter\GobToSemiColon\fi
\ifnum\value{count}>20 \expandafter\GobToSemiColon\fi
\node[draw, circle, on chain] {only when counter is in the range 3 to 20};
\end{scope}
\end{tikzpicture}
}
\begin{document}
\begin{frame}
\only{\setcounter{count}{-3}\myPicture}
\only{\setcounter{count}{105}\myPicture}
\only{\setcounter{count}{39}\myPicture}
\only{\setcounter{count}{2}\myPicture}
\only{\setcounter{count}{5}\myPicture}
\end{frame}
\end{document}
Best Answer
Quote from the beamer user guide:
If you are writing new code, you should use
otherwise you might sooner or later run into problems, for example \frame with options