# Subfloat Caption left aligned

I would like to create a figure with a left-aligned subfloat caption as the following:

\documentclass{llncs}

\usepackage{todonotes}
\usepackage{floatflt}
\usepackage{graphicx}
\usepackage{subfig}

\begin{document}
\begin{figure}[t!]
\centering
\missingfigure[figwidth=0.5\textwidth]{Testing a long text string}
\label{fig:pwd_grant}
}
\subfloat[Client Credential Grant]{
\missingfigure[figwidth=0.5\textwidth]{Testing a long text string}
\label{fig:client_grant}
}
\caption{grants}
\label{fig:auth_impl_grant}
\end{figure}
\end{document}


(if you compile now the example you will see the actual problem with the caption and why I would wish to have it left aligned)

using the subfig package with documenttype lncs currently the caption is in block mode - means tex spreads it over the complete available distance. This looks pretty crappy to me...

Thank you very much in advance.

@Peiffap Thanks to your suggestion I was able to create an example that worked for me with left aligned caption, but also in height aligned caption, it looks as follows:

\documentclass{llncs}
\usepackage{todonotes}
\usepackage{floatflt}
\usepackage{graphicx}
\usepackage{subcaption}
\captionsetup{compatibility=false}

\begin{document}
\begin{figure}[t!]
\makebox[\linewidth][c]{
\missingfigure[figwidth=\textwidth]{Testing a text string}
\label{fig:auth_grant}
}
\hspace*{2cm}
\subcaptionbox{Client Credential Grant}[.47\linewidth]{
\centering
\missingfigure[figwidth=\textwidth]{Testing a text string}
\label{fig:impl_grant}
}
}
\caption{Caption}
\label{fig:auth_impl_grant}
\end{figure}

\end{document}


for some odd reason, when I put this into overleaf with the missing figure placeholder it looks odd, still locally it works totally fine.

• I hope the code snippet is now completly functional Mar 18, 2019 at 12:44
• Why \hspace{\textwidth}?
– user156344
Mar 18, 2019 at 12:52
• To create a linebreak in a caption, I would like to split the caption over two lines that it doesn't collide with the caption of figure (b) Mar 18, 2019 at 12:53
• That will definitely cause a warning. You have a much simpler command: \\
– user156344
Mar 18, 2019 at 12:57
• this doesn't compile on my machine, I mean of course I know \\ but I already googled this workaround to be able to produce a linebreak in a caption Mar 18, 2019 at 13:03

Using the subcaption package, I could make the following.

This is the code I used to generate that (admittedly, I didn't have the llncs package installed, so I changed that out for article).

\documentclass{article}
\usepackage{todonotes}
\usepackage{floatflt}
\usepackage{graphicx}
\usepackage{subcaption}

\begin{document}
\begin{figure}[t!]
\centering
\begin{subfigure}[t]{0.47\textwidth}
\centering
\missingfigure[figwidth=\textwidth]{Testing a long text string}
\caption{Resource Owner Password \\ Credential Grant}
\label{fig:pwd_grant}
\end{subfigure}\hfill
\begin{subfigure}[t]{0.47\textwidth}
\centering
\missingfigure[figwidth=\textwidth]{Testing a long text string}
\caption{Client Credential Grant}
\label{fig:client_grant}
\end{subfigure}
\caption{grants}
\label{fig:auth_impl_grant}
\end{figure}

\end{document}


Do note however that subcaption and subfig are not compatible! For what it's worth though, subfig was getting pretty obsolete last time I checked, while subcaption fixes some of its flaws (compatibility with hyperref being a big one).

## Edit

After some more work, OP went with the following code.

\documentclass{llncs}
\usepackage{todonotes}
\usepackage{floatflt}
\usepackage{graphicx}
\usepackage{subcaption}
\captionsetup{compatibility=false}

\begin{document}
\begin{figure}[t!]
\makebox[\linewidth][c]{
\missingfigure[figwidth=\textwidth]{Testing a text string}
\label{fig:auth_grant}
}
\hspace*{2cm}
\subcaptionbox{Client Credential Grant}[.47\linewidth]{
\centering
\missingfigure[figwidth=\textwidth]{Testing a text string}
\label{fig:impl_grant}
}
}
\caption{Caption}
\label{fig:auth_impl_grant}
\end{figure}

\end{document}

• I am using subfig because springers llncs and subcaption are not compatible Mar 19, 2019 at 10:01
• @SilenceandI. Have you tried using \captionsetup{compatibility=false}? Mar 19, 2019 at 10:03
• not yet, didn't know this exists Mar 19, 2019 at 10:03
• @SilenceandI. Tell me if it works, I will update my answer in case it does. Mar 19, 2019 at 10:07
• thank you very much - I added to my question the changes I made to your suggestion to get a properly formated version of it :) - feel free to update your answer Mar 19, 2019 at 10:36