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due to problems trying to make a footnote without number (the objective is to include the source of an image), I tried using beamercolorbox with a tiny font (maybe is not the most correct option, but produces what I want, text without a border).

I read the following links with no sucess: link1 link2

Here is my example:

\documentclass[pdf]{beamer}
\usepackage[spanish,es-tabla,es-nodecimaldot]{babel}
\usepackage[utf8]{inputenc}
\setbeamerfont{footnote}{size=\tiny}
\mode<presentation>{\usetheme{Warsaw}}

\begin{document}

\begin{frame}{Introducción}
  \begin{minipage}[0.9\textheight]{\textwidth}
    \begin{columns}
      \begin{column}[]{0.5\textwidth}
          texto 1
      \end{column}      
      \begin{column}[]{0.5\textwidth}
         texto 2
      \end{column}
    \end{columns}
  \end{minipage}
  \begin{minipage}[0.1\textheight]{\textwidth}
    \begin{beamercolorbox}[width=\textwidth,bottom]{}
     {\tiny 
    Fuente: Experimental analysis, modeling and simulation of a solar energy accumulator with paraffin wax as PCM}
    \end{beamercolorbox}
  \end{minipage}
\end{frame}

It seems like the height argument of the minipages is not respected. This example contains what I want, an image (here text) at the left, text at the right (because of this I use columns in first minipage), and the 'footnote' at the bootom (wich I can't make to work). Just to clarify, I read several post asking about alignment of text inside a box, I want the box alig

Thanks to everyone.

  • The beamercolorbox environment does not provide a width option or a bottom option... – Paul Gaborit Dec 4 '17 at 8:34
  • 1
    The height of a minipage is its second optional argument: \begin{minipage}[t][0.9\textheight]{\textwidth}... – Paul Gaborit Dec 4 '17 at 8:38
  • @PaulGaborit I failed to find a list of the available arguments to beamercolorbox, the bottom option was part of my attempt to align it to the bottom of the frame, I expected an error message for non existent arguments. Putting the height as second optional argument worked, thanks. – Francisco Angel Dec 4 '17 at 14:21
  • @PaulGaborit Would you like to add an answer? – user36296 Jan 14 '18 at 13:36
  • @samcarter I don't know how to produce a bottom aligned box with beamer.... – Paul Gaborit Jan 14 '18 at 15:18
1

You could simply stay with your original idea and use a footnote without number:

\documentclass{beamer}

\newcommand{\nonumbernote}[1]{%
  {%
      \setbeamertemplate{footnote}{%
        \parindent 1em\noindent%
        \raggedright
        \insertfootnotetext\par%
    }
    \footnotetext[42]{#1}
  }
}

\begin{document}

\begin{frame}

\nonumbernote{Fuente: Experimental analysis, modeling and simulation of a solar energy accumulator with paraffin wax as PCM}
\end{frame}

\end{document}

enter image description here

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