Setting width of figure element in fbox / minipage

Question

Following code is currently used to show a figure:

\begin{figure}[ht]
  \lineskip=-\fboxrule
  \fbox{\begin{minipage}{\dimexpr\textwidth-2\fboxsep-2\fboxrule}
    \centering
    \includegraphics[width=0.5\textwidth]{example-image}
  \end{minipage}}
  \fbox{\begin{minipage}{\dimexpr\textwidth-2\fboxsep-2\fboxrule}
    \caption{The caption text}
  \end{minipage}}
  \label{fig:test}
\end{figure}

Question: How can I adjust the code so that the full box is only 0.5\textwidth of a page, with the image being full width within the box?

what is the intention of \lineskip=-\fboxrule ? (the behaviour with negative lineskip is defined but rather odd) — David Carlisle, Apr 08 '18 at 19:21

score 3 · Answer 1 · answered Apr 08 '18 at 19:02

3

You are artificially enlarging the box by placing the image within a minipage. If you want the box to have the same width as your image, just remove the minipage:

\documentclass{article}

\usepackage{graphicx}

\begin{document}

\begin{figure}[ht]
\centering
  \lineskip=-\fboxrule
  \fbox{%
%  \begin{minipage}{\dimexpr\textwidth-2\fboxsep-2\fboxrule}
%    \centering
    \includegraphics[width=0.5\textwidth]{example-image}%
%  \end{minipage}
  }%

  \fbox{%
  \begin{minipage}{\dimexpr\textwidth-2\fboxsep-2\fboxrule}
    \caption{The caption text}
  \end{minipage}
  }
  \label{fig:test}
\end{figure}


\end{document}

answered Apr 08 '18 at 19:02

samcarter_is_at_topanswers.xyz

158,329

That works for the image and it's frame but the caption is still full width? Both should only be 50% of the full page. – TensorJoe Apr 08 '18 at 19:05
@TensorJoe But if the caption is longer it will occupy the whole textwidth, so it would leak out of a 50% width box. Is this intended? – samcarter_is_at_topanswers.xyz Apr 08 '18 at 19:08
No, actually the solution above worked well. Yet, I appreciate your help and upvoted. Thank you! – TensorJoe Apr 08 '18 at 19:24

Zarko · Accepted Answer · 2018-04-08T19:14:34.980

\documentclass{article}
\usepackage[export]{adjustbox}

\begin{document}
\begin{figure}[ht]
\lineskip=-\fboxrule
\fbox{\parbox{0.5\linewidth}{\includegraphics[width=\linewidth]{example-image}}}\\ \fbox{\parbox{0.5\linewidth}{
    \caption{The caption text}
    \label{fig:test}
                        }}
\end{figure}
\end{document}

addedndum: if you have many such figures, than it might be sensible to define new command as:

\newcommand\fparbox[2]{\fbox{\parbox{#1}{#2}}}

and than use it as follows:

\documentclass{article}
\usepackage[export]{adjustbox}
\newcommand\fparbox[2]{\fbox{\parbox{#1}{#2}}}

\begin{document}
\begin{figure}[ht]
\lineskip=-\fboxrule
\fparbox{0.5\linewidth}{\includegraphics[width=\linewidth]{example-image}}\\    
\fparbox{0.5\linewidth}{
    \caption{The caption text}
    \label{fig:test}
                        }
\end{figure}
\end{document}

result is the same as before.

Setting width of figure element in fbox / minipage

2 Answers2