[Tex/LaTex] caption package doesn’t recognize font=doublespacing

captionsline-spacing

The journal I'm targetting requires "doublespaced" figure captions, and posts like these

http://www.latex-community.org/forum/viewtopic.php?f=45&t=4187

made me try out the caption package. I grabbed it from CTAN and looking at its doc (p. 10) made me try the font=doublespacing option, via a \usepackage[font=doublespacing]{caption} line in my preamble. But doing so generates an unknown key error:

! Package keyval Error: doublespacing undefined.
See the keyval package documentation for explanation.
l.448 \ProcessOptionsWithKV{caption}

this is using  pdfeTeX, Version 3.141592-1.21a-2.2 (Web2C 7.5.4) (format=pdflatex 
2006.12.10), via LyX v2.0.3.

Best Answer

You must load the setspace package to use caption's doublespacing option .

\documentclass{article}

\usepackage{setspace}

\usepackage[font=doublespacing]{caption}

\begin{document}

\begin{figure}
\centering
\rule{1cm}{1cm}
\caption{Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Ut
    purus elit, vestibulum ut, placerat ac, adipiscing vitae, felis.
    Curabitur dictum gravida mauris. Nam arcu libero, nonummy eget,
    consectetuer id, vulputate a, magna. Donec vehicula augue eu neque.}
\end{figure}

\end{document}

enter image description here

Related Solutions

[Tex/LaTex] Using the itemize environment inside a caption

From the caption manual:

If you want to typeset something special (like a tabular) as caption, you need to give an optional argument to \caption resp. \captionof for the List of Figures resp. List of Tables, too, even if you don’t use such list.

\documentclass{article}
\usepackage{caption}

\begin{document}

\begin{figure}
\captionsetup{singlelinecheck=off}
\caption[foo bar]{foo
  \begin{itemize}
    \item bar
  \end{itemize}}
\end{figure}

\end{document}

[Tex/LaTex] Setting font size for caption package

You can use the font key with one of the values scriptsize, footnotesize, small, normalsize, large or Large. A little example:

\documentclass{article}
\usepackage[skip=2pt,font=scriptsize]{caption}

\begin{document}

\begin{figure}
\caption{A test caption}
\end{figure}
Some regular text

\end{document}

enter image description here

If you want other sizes, you can declare a new format and use \fontsize as in the following (just illustrative) example:

\documentclass{article}
\usepackage[skip=2pt]{caption}

\DeclareCaptionFormat{myformat}{\fontsize{5}{6}\selectfont#1#2#3}
\captionsetup{format=myformat}

\begin{document}

\begin{figure}
\caption{A test caption}
\end{figure}
Some regular text

\end{document}

enter image description here

Best Answer

Related Solutions

[Tex/LaTex] Using the itemize environment inside a caption

[Tex/LaTex] Setting font size for caption package

Related Question