captionsfloatspositioningsubcaptionsubfloats
Is there some way to tell subfig package to place subfigure captions to the left or to the right of subfigures? There is sidecap package which does it for the main captions, but it does not affect subfigure captions.
Or, if subfig does not have this options, which way to do it is the best? I tried to use tabular environment inside the figure, but there were some problems with alignment inside cells.
I don't think using three different formats for the numbering of subfigures is good. Anyway, here it is:
\documentclass{article}
\usepackage{caption}
\captionsetup[figure]{labelsep=period,justification=centering,singlelinecheck=off}
\DeclareCaptionLabelFormat{rightparen}{#2)}
\usepackage{subfig}
\captionsetup[subfloat]{labelformat=rightparen}
\showcaptionsetup[uniq]{subfloat}
\usepackage{xparse}
\ExplSyntaxOn
\seq_new:N \g_akj_subfloat_seq
\NewDocumentCommand{\xsubfloat}{ m m }
{
\akj_subfloat:nn { #1 } { #2 }
}
\NewDocumentCommand{\makexcaption}{o}
{
\caption{\IfNoValueF{#1}{#1~}Subfigures:~%
\seq_use:Nnnn \g_akj_subfloat_seq {;~} {;~} {;~}}
}
\cs_new_protected:Npn \akj_subfloat:nn #1 #2
{
% initialize
\int_compare:nT { \value{subfigure} = 0 }
{ \seq_gclear:N \g_akj_subfloat_seq }
% do the subfloat
\subfloat[]{#2}
% store the subcaption
\seq_gput_right:Nx \g_akj_subfloat_seq { (\exp_not:N\textit{\alph{subfigure}}) ~ \exp_not:n { #1 } }
}
\ExplSyntaxOff
\renewcommand{\thesubfigure}{\textit{\alph{subfigure}}}
\makeatletter
\def\p@subfigure{\thefigure\,}
\makeatother
\begin{document}
\begin{figure}
\centering
\xsubfloat{subfigure A}{%
\rule{100pt}{50pt}%
\label{fig:subfig-a}%
}
\xsubfloat{subfigure B}{%
\rule{100pt}{50pt}%
\label{fig:subfig-b}%
}
\xsubfloat{subfigure C}{%
\rule{100pt}{50pt}%
\label{fig:subfig-c}%
}
\makexcaption\label{fig:figures}
\end{figure}
See Figures~\ref{fig:subfig-a}, \ref{fig:subfig-b} and~\ref{fig:subfig-c}.
\end{document}
The \makexcaption command has also an optional argument for text going before the list of subcaptions, so
\makexcaption[Some text.]
would produce
Figure 1. Some text. Subfigures: (a) subfigure A; (b) subfigure B; (c) subfigure C
Beware of unprotected end-of-lines in the arguments of \subfloat, that are the cause of your spurious spaces.
Here's a flexible solution; in a figure environment you define with \xsubfigure the objects you need and then arrange them as you like. Each command has as a first argument a symbolic key to be used in \makerow; the second argument defines the objects via a key-value syntax (add \label in the body of caption, if needed).
\documentclass{article}
\usepackage[font=footnotesize]{subcaption}
\usepackage[demo]{graphicx}
\usepackage{xparse}
\ExplSyntaxOn
\NewDocumentCommand{\xsubfigure}{ m m }
{% #1 is a symbolic key, #2 is a list of key-value pairs
\roly_xsubfigure:nn { #1 } { #2 }
}
\NewDocumentCommand{\makerow}{ m }
{% #1 is a list of symbolic keys
\roly_makerow:n { #1 }
}
% define the keys
\keys_define:nn { roly/subfigures }
{
width .tl_set:N = \l_roly_subfig_width_tl,
body .tl_set:N = \l_roly_subfig_body_tl,
caption .tl_set:N = \l_roly_subfig_caption_tl,
}
% the needed variables
\dim_new:N \l_roly_row_height_dim
\box_new:N \l_roly_body_box
% this is the inner command that stores the properties
\cs_new_protected:Npn \roly_xsubfigure:nn #1 #2
{
\prop_if_exist:cTF { l_roly_subfig_#1_prop }
{
\prop_clear:c { l_roly_subfig_#1_prop }
}
{
\prop_new:c { l_roly_subfig_#1_prop }
}
\keys_set:nn { roly/subfigures } { #2 }
\prop_put:cnV { l_roly_subfig_#1_prop } { width } \l_roly_subfig_width_tl
\prop_put:cnV { l_roly_subfig_#1_prop } { body } \l_roly_subfig_body_tl
\prop_put:cnV { l_roly_subfig_#1_prop } { caption } \l_roly_subfig_caption_tl
}
% this is the inner command for producing a row
\cs_new_protected:Npn \roly_makerow:n #1
{
% get the heights of the objects on a row
\dim_zero:N \l_roly_row_height_dim
\clist_map_inline:nn { #1 }
{
\hbox_set:Nn \l_roly_body_box
{
\prop_item:cn { l_roly_subfig_##1_prop } { body }
}
\dim_compare:nT { \box_ht:N \l_roly_body_box > \l_roly_row_height_dim }
{
\dim_set:Nn \l_roly_row_height_dim { \box_ht:N \l_roly_body_box }
}
}
% produce a line
\clist_map_inline:nn { #1 }
{
% a subfigure is set here
\begin{subfigure}[t]{ \prop_item:cn { l_roly_subfig_##1_prop } { width } }
\raggedright
\vspace{0pt} % for top alignment
% the body is set in a suitably dimensioned parbox
\parbox[t][\l_roly_row_height_dim]{\textwidth}{
\prop_item:cn { l_roly_subfig_##1_prop } { body }
}
% add the caption
\caption{ \prop_get:cn { l_roly_subfig_##1_prop } { caption } }
\end{subfigure}
\hspace{2em} % some space between the objects in a row
}
\unskip\\ % end up the row
}
\ExplSyntaxOff
\begin{document}
\begin{figure}
\captionsetup[subfigure]{justification=justified,singlelinecheck=false}
\centering
\xsubfigure{A}{
width=0.3\textwidth,
body={\includegraphics[width=3cm,height=2cm]{fig/workflow-S}},
caption={workflow $S$ and some text added to go to the next line}
}
\xsubfigure{B}{
width=0.5\textwidth,
body={\includegraphics[width=6cm,height=2.5cm]{fig/workflow-S-run}},
caption={run of $S$}
}
\xsubfigure{C}{
width=0.3\textwidth,
body={\includegraphics[width=2cm,height=1.5cm]{fig/workflow-S'}},
caption={workflow $S'$}
}
\xsubfigure{D}{
width=0.5\textwidth,
body={\includegraphics[width=4cm,height=1cm]{fig/workflow-S'-run}},
caption={run of $S'$}
}
\makerow{A,B}
\medskip
\makerow{C,D}
\caption{Here's a figure}
\end{figure}
\end{document}
Note that if you're not satisfied with the arrangement, you can rearrange the subfigures by saying, for instance,
\makerow{A,D}
\medskip
\makerow{C,B}
In the example I set height and width for every \includegraphics, as I don't have your images, but you can use the keys you prefer.
Best Answer
The subcaption package offers a command called
\subcaptionwhich typesets a sub-caption alone and has the same syntax as\caption. You can place this command where you want, i.e. also beside a figure.Addendum 2011-01-19, Example code:
Furthermore the floatrow package offers stuff like that (and more).