How to achieve top-alignment of images in subfigure?

Question

There are some threads about subfigures and alignment, but I could not find a solution for my problem. I want to have two figures side by side, both with their own capture (a and b) and below one capture for both. Using

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

\begin{document}
\begin{figure}
    \centering
    \begin{subfigure}[b]{.49\textwidth}
        \centering
        \includegraphics[width=6cm]{example-image-a}
        \caption{Caption describing fig a}
        \label{fig:figure_a}
    \end{subfigure}\hfill%
    \begin{subfigure}[b]{.49\textwidth}
        \centering
        \includegraphics[width=7cm]{example-image-b}
        \caption{Caption describing fig b}
        \label{fig:figure_b}
    \end{subfigure}
    \caption{Caption for both images}
    \label{fig:Filter_L_LCL}
\end{figure}
\end{document}

gives me this:

and using my graphics I get this, so it is quite the similar situation:

Exactly what I want, expect the image alignment. I'd like to have them top-aligned and captions bottom-aligned (the image size must not be changed since image and document font size match). How can this be done? Any solution without manually shifting?

Welcome to TeX.SX! You should edit your question to make your code a complete compilable minimal working example (MWE) beginning at \documentclass and ending at \end{document} providing all we need to compile it and reproduce your issue/error, but nothing more. For images you should use example-image in \includegraphics. — Skillmon, Sep 05 '17 at 18:15
https://tex.stackexchange.com/questions/152818/top-aligned-subfigure-with-bottom-aligned-caption looks like a duplicate of your question, does any of the answers there help? — Torbjørn T., Sep 05 '17 at 18:42
This seems to come up a lot: see also https://tex.stackexchange.com/questions/331118/how-do-i-align-both-baseline-and-caption-in-a-horizontal-tikzpicture-subcaption — John Kormylo, Sep 05 '17 at 20:49

Bernard · Accepted Answer · 2017-09-06T00:55:15.880

5

You can obtain it with the floatrow package:

\documentclass{article}
\usepackage{geometry}
\usepackage{subcaption}
\usepackage{graphicx, floatrow}

\begin{document}

\begin{figure}
\floatsetup{valign=t, heightadjust=all}
\ffigbox{%
\begin{subfloatrow}
\ffigbox{\includegraphics[width=6cm]{example-image-a}}{\caption{Caption describing fig a \label{fig:figure_a}}}
\ffigbox{\includegraphics[width=7cm]{example-image-b}}{\caption{Caption describing fig b} \label{fig:figure_b}}
    \end{subfloatrow}}
    {\caption{Caption for both images}
    \label{fig:Filter_L_LCL}}
\end{figure}

\end{document}

edited Sep 06 '17 at 00:55

answered Sep 05 '17 at 22:26

Bernard

271,350

1

Why isn't the total caption shown? ("Caption for both images") – skpblack Sep 05 '17 at 23:26
1

Sorry, I had forgotten it! 'Tis fixed now. – Bernard Sep 05 '17 at 23:49
Bernard, sorry but if i run your MWE, the total caption is not generated!. I don't know what is happening or if the problem is mine. – skpblack Sep 06 '17 at 00:28
Thanks for the answer. This is a nice and short solution that works well! – jesterhead Sep 06 '17 at 05:29
@skpblack: Did you run the last version of the code? Initially, as I focused on the top-alignment, I had forgotten to check the total caption was there. – Bernard Sep 06 '17 at 08:38
@jesterhead, if this answer satisfies your expectations, consider accepting it. – skpblack Sep 07 '17 at 02:32

score 3 · Answer 2 · answered Sep 06 '17 at 00:25

Move the shorter image into position using \raisebox:

\documentclass{article}

\usepackage{subcaption,graphicx}

\newsavebox{\tempfig}

\begin{document}

\begin{figure}
  \centering
  \begin{subfigure}[b]{.49\textwidth}
    \centering
    \savebox{\tempfig}{\includegraphics[width=7cm]{example-image-b}}% Store larger image in box
    \raisebox{\dimexpr\ht\tempfig-\height}{\includegraphics[width=6cm]{example-image-a}}
    \caption{Caption describing fig a}
  \end{subfigure}\hfill%
  \begin{subfigure}[b]{.49\textwidth}
    \centering
    \includegraphics[width=7cm]{example-image-b}
    \caption{Caption describing fig b}
  \end{subfigure}
  \caption{Caption for both images}
\end{figure}

\end{document}

The height of the raise is given by the difference between the height of the larger image (\ht\tempfig, where \tempfig is the box containing the larger image) and the smaller image (\height - the natural height of the element contained within \raisebox's second argument).

score 0 · Answer 3 · edited Jan 07 '24 at 10:58

I would suggest using similar code: (pay attention to "\usepackage[export]{adjustbox}" and " valign=t"

\documentclass{eage2024}
\usepackage{subcaption}
\usepackage{graphicx}
\usepackage[export]{adjustbox}
\begin{document}
\begin{figure}[!tbp]
\centering
\begin{subfigure}[b]{0.2\textwidth}
    \includegraphics[width=1\textwidth, valign=t]{8a.png}
    \caption{cc.}
    \label{fig:h1}
\end{subfigure}
\begin{subfigure}[b]{0.2\textwidth}
    \includegraphics[width=1\textwidth, valign=t]{8b.png}
    \caption{cc2.}
    \label{fig:h2}
\end{subfigure}
\begin{subfigure}[b]{0.2\textwidth}
    \includegraphics[width=1\textwidth, valign=t]{8c.png}
    \caption{cc3.}
    \label{fig:h3}
\end{subfigure}
\begin{subfigure}[b]{0.2\textwidth}
    \includegraphics[width=1\textwidth, valign=t]{8d.png}
    \caption{Triple layer-thickness 1.}
    \label{fig:h4}
\end{subfigure}
\caption{cc4.}
\label{fig:h5}
\end{figure}
\end{document}

As it’s currently written, your answer is unclear. Please [edit] to add additional details that will help others understand how this addresses the question asked. You can find more information on how to write good answers in the help center. — Community, Jan 07 '24 at 10:43
It would help to explain what your suggested changes are doing. — AlMa, Jan 07 '24 at 16:25

How to achieve top-alignment of images in subfigure?

3 Answers3

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