# Vertical Spacing using \subcaption package

I have a simple problem. I'm trying to add a little bit of vertical spacing between the top two and bottom two subfigures. Here's my code:

\documentclass{article}
\usepackage[demo]{graphicx}
\usepackage{caption}
\usepackage{subcaption}
\begin{document}
\begin{figure}
\centering
\begin{subfigure}{.5\textwidth}
\centering
\includegraphics[scale=0.2]{CHRe100t0_5.jpg}
\caption{t = 0.5 s and Re = 100}
\end{subfigure}%
\begin{subfigure}{.5\textwidth}
\centering
\includegraphics[scale=0.2]{ChRe100t1.jpg}
\caption{t = 1.0 s and Re = 100}
\end{subfigure}
\begin{subfigure}{.5\textwidth}
\centering
\includegraphics[scale=0.2]{CHRe100t1_5.jpg}
\caption{t = 1.5 s and Re = 100}
\end{subfigure}%
\begin{subfigure}{.5\textwidth}
\centering
\includegraphics[scale=0.2]{CHRe100t2.jpg}
\caption{t = 2.0 s and Re = 100}
\end{subfigure}
\caption{y vs. u}
\end{figure}
\end{document}


Any suggestions would be greatly appreciated!

You could insert the instructions \par\bigskip between the second and third subfigure to create a bit of extra vertical space between the two sets of subfigures. If \bigskip is too much for your taste, try using \medskip.

\documentclass{article}
\usepackage[demo]{graphicx} % omit 'demo' option in real document
\usepackage{subcaption}
\begin{document}
\begin{figure}
\centering
\begin{subfigure}{.49\textwidth}
\centering
\includegraphics[scale=0.2]{CHRe100t0_5.jpg}
\caption{t = 0.5 s and Re = 100}
\end{subfigure}
\begin{subfigure}{.49\textwidth}
\centering
\includegraphics[scale=0.2]{ChRe100t1.jpg}
\caption{t = 1.0 s and Re = 100}
\end{subfigure}
\par\bigskip % force a bit of vertical whitespace
\begin{subfigure}{.49\textwidth}
\centering
\includegraphics[scale=0.2]{CHRe100t1_5.jpg}
\caption{t = 1.5 s and Re = 100}
\end{subfigure}
\begin{subfigure}{.49\textwidth}
\centering
\includegraphics[scale=0.2]{CHRe100t2.jpg}
\caption{t = 2.0 s and Re = 100}
\end{subfigure}
\caption{y vs. u}
\end{figure}
\end{document}

• Wouldn't \par\bigskip be (conceptually, but not only) better? – egreg Jun 23 '13 at 19:22
• @egreg - thanks for the suggestion. I've modified the code. – Mico Jun 23 '13 at 20:35

The same result (as Mico) can be obtained with less typing:

\documentclass{article}
\usepackage[demo]{graphicx} % omit 'demo' option in real document
\usepackage{stackengine}
\begin{document}
\begin{figure}
\centering
\stackunder{\includegraphics[scale=0.2]{CHRe100t0_5.jpg}}{(a) t = 0.5 s and Re = 100}~~~~~~
\stackunder{\includegraphics[scale=0.2]{ChRe100t1.jpg}}{(b) t = 1.0 s and Re = 100}
\par\bigskip
\stackunder{\includegraphics[scale=0.2]{CHRe100t1_5.jpg}}{(c) t = 1.5 s and Re = 100}~~~~~~
\stackunder{\includegraphics[scale=0.2]{CHRe100t2.jpg}}{(d) t = 2.0 s and Re = 100}
\caption{y vs. u}
\end{figure}
\end{document}

• An interesting solution. Real quick: Will this solution allow the creation of hyperlinks to each of the four subfigure environments (assuming, of course, that each one is given its own \label)? – Mico Jun 24 '13 at 0:50
• @Mico. I don't use hyperref so I can't answer with authority, but the stackengine package makes no special provisions for it. Thus, I would guess that \label{} would get you to the figure, but not the subfigure. – Steven B. Segletes Jun 24 '13 at 10:09
• @Mico A little late in reply, but this answer, tex.stackexchange.com/questions/170304/…, shows how hyperref can be incorporated with stackengine to handle subfigure hotlinks. – Steven B. Segletes Jul 11 '16 at 9:55