Subfloat vertical alignment in latex

Question

If I have to pictures of different height and the same width, how can I dock them to the top that both pictures are vertically aligned. This is my code so far:

\begin{figure}[h]
    \centering
       \subfloat[Part 1]{%
          \includegraphics[width=0.4\textwidth]{pic1.png}%
          \label{fig:left}%
       }
       \subfloat[Part 2]{%
          \includegraphics[width=0.4\textwidth]{pic2.png}%
          \label{fig:middle}%
       }
       \caption{Stuff will be here.}
       \label{fig:default}
\end{figure}

score 33 · Accepted Answer · answered Feb 29 '16 at 22:17

33

Sub-float package assumes that it is important to vertically align the captions, and therefore typically relies on a baseline alignment of the sub-float content.

Using adjustbox's valign=t option, the image's (the sub-float content) regular baseline alignment could be altered to now be at the top. However, you may also want to insert an appropriately-sized companion for the shorter image... do that by using \vphantom{<larger image>}:

\documentclass{article}

\usepackage[export]{adjustbox}
\usepackage{subfig}

\begin{document}

\begin{figure}
  \centering

  \subfloat[Part 1]{%
    \includegraphics[width=0.2\textwidth,valign=t]{example-image-a}%
  } \quad
  \subfloat[Part 2]{%
    \includegraphics[width=0.2\textwidth,valign=t]{example-image-10x16}%
  }

  \subfloat[Part 1]{%
    \includegraphics[width=0.2\textwidth,valign=t]{example-image-a}%
    \vphantom{\includegraphics[width=0.2\textwidth,valign=t]{example-image-10x16}}%
  } \quad
  \subfloat[Part 2]{%
    \includegraphics[width=0.2\textwidth,valign=t]{example-image-10x16}%
  }

  \caption{Stuff will be here.}
\end{figure}

\end{document}

answered Feb 29 '16 at 22:17

Werner

603,163

17

For those who are looking for center alignment, make all valign=c – Jo Kachikaran Nov 06 '16 at 11:48
1

I spent an afternoon and a morning struggling with that. That's exactly what I needed, I couldn't thank you enough. – Right leg Jul 20 '17 at 09:22
did anyone get? Package keyval Error: valign undefined. ...xtwidth,valign=t]{figures/circuitth.png}} – droid192 May 29 '19 at 11:36
3

@ItsmeJulian: You need \usepackage[export]{adjustbox} in your preamble. Did you add that? – Werner May 29 '19 at 13:58
See this question for the case with tikz figures instead of graphics, where this solution cannot be used. – Karlo May 03 '21 at 22:43
The second part is such an amazing trick – Manza Jan 11 '22 at 15:27
For anyone struggling with alignment: do not forget to add the valign inside the phantom too. I forgot this, with the result that there was lots of blank space above if you top- or center-align. – mxt3 Mar 28 '23 at 12:06

Subfloat vertical alignment in latex

1 Answers1

Linked

Related