Document Classes ⇒ beamer | One Block displayed, the other covered

[nounouuuuu201186]

Hi all,

I want that when the first block is displayed, the second is gray, and vice versa.

Code: Select all

\begin{frame}[t]{General formalization of haplotyping.}
  \begin{block}{Inputs}
    \begin{itemize}
    \item A \alert{genotype matrix} $G$.
    \item The \alert{rows} of the matrix are \alert{taxa / individuals}.
    \item The \alert{columns} of the matrix are \alert{SNP sites /
        characters}. 
    \end{itemize}
  \end{block}
  \begin{block}{Outputs}
    \begin{itemize}
    \item A \alert{haplotype matrix} $H$.
    \item Pairs of rows in $H$ \alert{explain} the rows of $G$.
    \item The haplotypes in $H$ are \alert{biologically plausible}. 
    \end{itemize}
  \end{block}
\end{frame}

any help?

[localghost]

For an adequate problem description and in order to avoid guesses and random shots please prepare a minimal example that contains all necessary but only relevant information in form of code. You should keep this in mind for future requests. Otherwise it can happen that you will get no answer to your questions.


Thorsten

[nounouuuuu201186]

Sorry
I hope the code below is sufficient :

Code: Select all

\documentclass{beamer}
\usepackage[frenchb]{babel}
\usepackage[latin1]{inputenc}
\usepackage[T1]{fontenc}
\usepackage{amsmath}
\usepackage{epsfig,pslatex,colortbl}
\usepackage{graphics}
\usepackage{graphicx}%pour les includegraphics
\usepackage{array}
\usepackage{beamerthemesplit} 
\usepackage{multicol}

\usetheme{PaloAlto}
\usecolortheme{orchid}
\begin{document}
\begin{frame}[t]{General formalization of haplotyping.}
  \begin{block}{Inputs}
    \begin{itemize}
    \item A \alert{genotype matrix} $G$.
    \item The \alert{rows} of the matrix are \alert{taxa / individuals}.
    \item The \alert{columns} of the matrix are \alert{SNP sites /
        characters}. 
    \end{itemize}
  \end{block}
  \begin{block}{Outputs}
    \begin{itemize}
    \item A \alert{haplotype matrix} $H$.
    \item Pairs of rows in $H$ \alert{explain} the rows of $G$.
    \item The haplotypes in $H$ are \alert{biologically plausible}. 
    \end{itemize}
  \end{block}
\end{frame}
\end{document}

[nounouuuuu201186]

I solve the problem with :

Code: Select all

\setbeamercovered{invisible}
\setbeamercovered{transparent}
\onslide<2->

here is the new code:

Code: Select all

\documentclass{beamer}
\usepackage[frenchb]{babel}
\usepackage[latin1]{inputenc}
\usepackage[T1]{fontenc}
\usepackage{amsmath}
\usepackage{epsfig,pslatex,colortbl}
\usepackage{graphics}
\usepackage{graphicx}%pour les includegraphics
\usepackage{array}
\usepackage{beamerthemesplit} 
\usepackage{multicol}
\usetheme{PaloAlto}
\usecolortheme{orchid}
\setbeamercovered{invisible}
\setbeamercovered{transparent}
\begin{document}
\begin{frame}[t]{General formalization of haplotyping.}
  \begin{block}{Inputs}
    \begin{itemize}
    \item A \alert{genotype matrix} $G$.
    \item The \alert{rows} of the matrix are \alert{taxa / individuals}.
    \item The \alert{columns} of the matrix are \alert{SNP sites /
        characters}. 
    \end{itemize}
  \end{block}
  \onslide<2->
  \begin{block}{Outputs}
    \begin{itemize}
    \item A \alert{haplotype matrix} $H$.
    \item Pairs of rows in $H$ \alert{explain} the rows of $G$.
    \item The haplotypes in $H$ are \alert{biologically plausible}. 
    \end{itemize}
  \end{block}
\end{frame}
\end{document}

[localghost]

Just for information to other users for awareness of possibly already existing solutions. The question has also been posted to {TeX} SX (migrated from Stack Overflow).