beamergraphicspause
I would to \pause two different images (as I can to do with text). This is the ideal code:
\documentclass{beamer}
\usetheme{Copenhagen}
\setbeamercovered{dynamic}
\begin{document}
\begin{frame}
\centering
\includegraphics{gfx/img1} \\
\pause
\includegraphics{gfx/img2}
\end{frame}
\end{document}
What is the real code?
I see both the images on each pause.
Edit: I would to preserve the absolute position of the images and the dynamic behaviour.
See section 12.7 (Splitting a Frame into Multiple Columns) of the beamer manual:
twill cause the first lines of the columns to be aligned. Default if global optiontis used.
Tis similar to thetoption, butTaligns the tops of the first lines whiletaligns the so-called baselines of the first lines. If strange things seem to happen in conjunction with thetoption (for example if a graphic suddenly “drops down” with thetoption instead of “going up,”), try using this option instead.
I see you commented out some minipage environment. No need to use minipage in conjunction with column, because the latter uses the former internally. You should be able to achieve any multiple-column layout you want with just columns and column environments, without (explicitly) using minipage.
\documentclass[slidestop,compress,mathserif,11pt,xcolor=dvipsnames]{beamer}
\usepackage{beamerthemebars}
\usepackage[bars]{beamerthemetree}
\usepackage{multicol}
\setbeamercovered{higly dynamic}
\usetheme{Ilmenau} % Beamer theme v 3.0
\useoutertheme[subsection=true]{smoothbars}%Beamer Outer Theme-circles on top
\usefonttheme{serif}
\useinnertheme{circles}
\begin{document}
\section{Εισαγωγή}
\begin{frame}
\frametitle{Nuclear Propulsion}
\begin{columns}
\begin{column}[T]{0.48\textwidth}
\vspace{0pt}%
\includegraphics[width=\columnwidth]{AtomicSubmarine}
\vspace{1em}
\tiny
\begin{enumerate}
\item Item1$\rightarrow$ Conclusdion
\item Item2$\rightarrow$ Conclusdion
\item Item3$\rightarrow$ Conclusdion
\item Item4$\rightarrow$ Conclusdion
\item Item5$\rightarrow$ Conclusdion
\item Item6$\rightarrow$ Conclusdion
\end{enumerate}
\end{column}\hfill
\begin{column}[T]{0.48\textwidth}
\includegraphics[width=0.9\columnwidth]{SubmarineSnorkel}
\end{column}
\end{columns}
\end{frame}
\end{document}
This is so, because \insertsectionnumber is defined as (in the file beamerbasesection.sty)
\def\insertsectionnumber{\@arabic\c@section}
And \appendix doesn't change this;
\newcommand<>\appendix{%
\only#1{\part{\appendixname}
\addtocontents{nav}{\protect\headcommand{\protect\beamer@appendixpages{\the\c@page}}}}}
so the counter will appear using arabic representation.
You can change this, redefining \insertsectionnumber in the proper location:
\setcounter{section}{0}
\renewcommand\insertsectionnumber{\Alph{section}}
Perhaps you want to let \appendix do this change:
\documentclass{beamer}
\makeatletter
\renewcommand<>\appendix{%
\setcounter{section}{0}%
\renewcommand\insertsectionnumber{\Alph{section}}%
\only#1{\part{\appendixname}
\addtocontents{nav}{\protect\headcommand{\protect\beamer@appendixpages{\the\c@page}}}}}
\makeatother
\begin{document}
\section{test1}
\begin{frame}{\insertsectionnumber.~\insertsection}
bal bla
\end{frame}
\appendix
\section{test2}
\begin{frame}{\insertsectionnumber.~\insertsection}
bla bla
\end{frame}
\end{document}
Best Answer
You can also use
in order to have content only visible on slide 1, but reserve space for it on the other slides. This may help you with your positioning problem.