Editing the reference style for subfigures using cleveref and memoir

Question

I'm using the cleveref package to reference floats (in this case subfigures) in the memoir class. Currently the output looks like this (sorry for the danish, I don't think it matters):

Using the following input (not all packages included, ofc):

\documentclass[oneside,article,12pt,danish]{memoir}
\usepackage{graphicx}
\newsubfloat{figure}
\captiontitlefont{\slshape}
\subcaptionfont{\slshape}

\usepackage{varioref}
\usepackage{hyperref}
\usepackage{cleveref}

\begin{document}

\begin{figure}[h!]
  \centering
  \subbottom[Subfigure 1 caption]{\rule{3cm}{1cm}\label{sub1}}
  \hspace{1cm}
  \subbottom[Subfigure 2 caption]{\rule{3cm}{1cm}\label{sub2}}
\caption{Figure text.}
\label{fig:secondfig}
\end{figure}

\cref{sub1,sub2}

\end{document}

I like the way the figure/subfigures are set up, but I would like the reference to say 5a or 5.a instead of 5(a) without changing the figure/subfigure captions. Is there a general way to do this in the entire document, so that it can be easilly be changed to a somewhat random notation?

Answer 1

This solution avoids the need to load caption and thereby retains the facilities of memoir. At least, it seems so although my testing has been somewhat minimal. Uncomment/comment the appropriate line to achieve formatting with or without the dot, as the mood takes you.

\documentclass[oneside,article,12pt,danish]{memoir}
\newsubfloat{figure}
\captiontitlefont{\slshape}
\subcaptionfont{\slshape}

% \renewcommand{\thesubfigure}{\alph{subfigure}}% plain version
\renewcommand{\thesubfigure}{.\alph{subfigure}}% dotted version
\makeatletter
\renewcommand{\@thesubfigure}{(\alph{subfigure})%
    \if@tightsubcap\hskip\subfloatlabelskip\else\space\fi}
\makeatother

\usepackage{varioref}
\usepackage{hyperref}
\usepackage{cleveref}

\begin{document}

\begin{figure}[h!]
  \centering
  \subbottom[Subfigure 1 caption]{\rule{3cm}{1cm}\label{sub1}}
  \hspace{1cm}
  \subbottom[Subfigure 2 caption]{\rule{3cm}{1cm}\label{sub2}}
\caption{Figure text.}
\label{fig:secondfig}
\end{figure}

\cref{sub1,sub2}

\end{document}

Were you to load xcolor then you could (perversely) have just the references to the sub-figure bits typeset in huge, blue lowercase without affecting the captions or other references:

\renewcommand{\thesubfigure}{\Huge\color{blue}.\alph{subfigure}}% dotted version

Obviously, this would be a terrible choice but it demonstrates that the format can be easily 'changed to a somewhat random notation' while retaining the format of sub-captions and the interface of memoir.

Answer 2

OK, here's a partial suggestion using subfig and caption. I've not used the memoir class before. If I use article, figures are labelled "1.a", when I switch to memoir I get "0.1.a". Some of your code doesn't compile for me. I've commented it out. I've changed the figure to look more like my own code (i.e. subfloat not subbottom) because I haven't used the latter before. I've incorporated the answer to the question I linked to before.

So, with the caveats above about the non-compiling code, my example here does what you want in terms of figure labelling (I think).

There's probably a better solution.

\documentclass[12pt]{memoir}
\usepackage{graphicx}



%%%%These do not work for me - is there a missing package?
%\newsubfloat{figure}
%\captiontitlefont{\slshape}
%\subcaptionfont{\slshape}
%%%%

\usepackage{varioref}
\usepackage{hyperref}
\usepackage{cleveref}

\usepackage[font=sl,labelfont=up]{caption}
\usepackage[font=sl,labelfont=up]{subfig}

\renewcommand\thesubfigure{\alph{subfigure}} % default: "(\alph{subfigure})"
\makeatletter
\renewcommand{\p@subfigure}{\thefigure.} % default: "\thefigure" (without the ".")
\makeatother


\begin{document}


\begin{figure}
  \centering
  \subfloat[Subfigure 1 caption]{\rule{3cm}{1cm}\label{sub1}}
  \hspace{1cm}
  \subfloat[Subfigure 2 caption]{\rule{3cm}{1cm}\label{sub2}}
\caption{Figure text.}
\label{fig:secondfig}
\end{figure}

\cref{sub1,sub2}

\end{document}