[Tex/LaTex] Is it possible to add subtitles of a figure which contains subfigures

floatsgraphicssubfloats

I have a single image which contains two sub-images. I want the following subtitles (a) and (b) to be shown correctly.

In which, left sides is my current image which contains two rectangular. And right sides is my expected result. I found a solution is that we can use subfig package. However, it requires separating the original figure into two subfigure. In that question, I am regarding that we do not need split original figure, I want to write (a),(b) directly below figure. Thanks
Current solution is

\begin{figure}[H]
\captionsetup{labelfont={bf}}
  \centering
    \subfloat[]{\centering\includegraphics[scale=0.5]{Fig1a.png}} \\
    \subfloat[]{\centering\includegraphics[scale=0.5]{Fig1b.png}}
  \caption{This is main figure}
  \label{fig:9}
\end{figure}

Best Answer

My suggestion would be to clip the image contents within LaTeX; graphicx allows for that:

\documentclass{article}

\usepackage{graphicx,subcaption}

\begin{document}

\begin{figure}
  \centering
  \setbox1=\hbox{\includegraphics{example-image-a}}%
  \subcaptionbox{}{\centering\includegraphics[scale=0.5,viewport=.5\wd1 0 \wd1 \ht1,clip]{example-image-a}}%
  \qquad
  \setbox1=\hbox{\includegraphics{example-image-b}}%
  \subcaptionbox{}{\centering\includegraphics[scale=0.5,viewport=0 0 .5\wd1 \ht1,clip]{example-image-b}}
  \caption{This is main figure}
\end{figure}

\end{document}

I've used example-image-a and example-image-b (from mwe) above, although you will use the same image. As such, you'll only need to capture the image in box 1 once. Note how the image is split in half (at the .5\wd1 mark) with the viewport and clip combination.

Additionally, I've used subcaption, but you can manage the same with subfig.

Here is an example of breaking up a single image into six equal parts (perhaps synonymous to your situation):

\documentclass{article}

\usepackage{graphicx,subcaption}

\begin{document}

\begin{figure}
  \centering
  \setbox1=\hbox{\includegraphics{example-image}}%
  \subcaptionbox{}{\centering\includegraphics[scale=0.5,viewport=0 0 .16667\wd1 \ht1,clip]{example-image}}%
  \quad
  \subcaptionbox{}{\centering\includegraphics[scale=0.5,viewport=.16667\wd1 0 .3333\wd1 \ht1,clip]{example-image}}%
  \quad
  \subcaptionbox{}{\centering\includegraphics[scale=0.5,viewport=.3333\wd1 0 .5\wd1 \ht1,clip]{example-image}}%
  \quad
  \subcaptionbox{}{\centering\includegraphics[scale=0.5,viewport=.5\wd1 0 .66667\wd1 \ht1,clip]{example-image}}%
  \quad
  \subcaptionbox{}{\centering\includegraphics[scale=0.5,viewport=.6667\wd1 0 .8333\wd1 \ht1,clip]{example-image}}%
  \quad
  \subcaptionbox{}{\centering\includegraphics[scale=0.5,viewport=.8333\wd1 0 \wd1 \ht1,clip]{example-image}}%
  \caption{This is main figure}
\end{figure}

\end{document}

Each component is extracted as a sixth of the total width \wd1, one step at a time.

Related Solutions

[Tex/LaTex] Need help indexing subfigures: reference bugs using `subfigure` and `subcaption` not compatible with specialized document class

When all else fails, do \usepackage[caption=false]{subfig}:

\documentclass [11pt, twoside] {uwthesis}[2012/06/19]

\setcounter{tocdepth}{1}  % Print the chapter and sections to the toc

\usepackage{alltt}  %
\usepackage[demo]{graphicx}
\usepackage{epstopdf}

\usepackage[caption=false]{subfig}

\usepackage{float}
\usepackage{xfrac}
\usepackage{mathtools}
\usepackage{amsfonts}
\usepackage{gensymb}
\usepackage{inputenc}
\usepackage{rotating}
\usepackage[table]{xcolor}
\usepackage{booktabs}
\usepackage{multirow,bigdelim}
%\usepackage{fixltx2e}
\usepackage[xspace]{ellipsis}
\usepackage{changepage}
\usepackage[acronym]{glossaries} 

\usepackage{hyperref}

\newenvironment{demo}
  {\begin{alltt}\leftskip3em
     \def\\{\ttfamily\char`\\}%
     \def\{{\ttfamily\char`\{}%
     \def\}{\ttfamily\char`\}}}
  {\end{alltt}}

% metafont font.  If logo not available, use the second form
%
% \font\mffont=logosl10 scaled\magstep1
\let\mffont=\sf
% --- end-of-sample-stuff ---

\begin{document}

%
% ==========      Text pages
%

\textpages

%\include{Figures_SubcaptionsTest}
%\include{Figures_CaptionsTest}

% ================== figure 1, no subfigures
\begin{figure}
    \centering
        \includegraphics{//SampleFig.eps}
    \caption{Sample caption for figure 1.}
    \label{fig:Figure1}
\end{figure}

% ================= figure 2,  includes subfigures
\begin{figure}[h!p]
  \subfloat[First subfigure sample.]{%
    \includegraphics[width=.45\textwidth]{//SampleSubfig.eps}%
    \label{fig:FirstSampleSubFig}%
  }\hfill
  \subfloat[Second subfigure sample.]{%
    \includegraphics[width=.45\textwidth]{//SampleSubfig.eps}%
    \label{fig:SecondSampleSubFig}%
  }
  \caption{Sample composite caption for figure 2.}
  \label{fig:Figure2}
\end{figure}

% ================== figure 3, no subfigures
\begin{figure}
    \centering
        \includegraphics{//SampleFig.eps}
    \caption{Sample caption for figure 3.}
    \label{fig:Figure3}
\end{figure}

\ref{fig:Figure2}

\subref{fig:FirstSampleSubFig}

\ref{fig:FirstSampleSubFig}

\end{document}

enter image description here

[Tex/LaTex] Ordering subfigures inside a figure environment

For this you have more possibilities. The simple one is to omit empty line between last and one before subfigure. In this case the subfigure d will be vertically aligned with subfigure c.

More elegant result you can achieve with use of tabular environment:

\documentclass[11pt]{article}

\usepackage{pgfplots}
\usepackage{graphicx}
\usepackage{caption}
\usepackage{subcaption}
\usepackage{geometry}
\usepackage{float}
\floatstyle{boxed}
\restylefloat{figure}

\usepackage{array}% for m type of column

    \begin{document}
\begin{figure}[h]
    \begin{tabular}{m{0.5\hsize}m{0.5\hsize}}
 \begin{subfigure}{0.5\textwidth}
 \caption{subfig 1}\label{syntaxUW}
 \end{subfigure}

 \begin{subfigure}{0.5\textwidth}
 \caption{subfig 2}\label{UWBeispiel}
 \end{subfigure}

 \begin{subfigure}{0.5\textwidth}
 \caption{subfig 3}\label{syntaxUW}
 \end{subfigure}
    &
 \begin{subfigure}{0.5\textwidth}
 \caption{subfig 4}\label{syntaxUW}
 \end{subfigure}
    \end{tabular}

\caption{fig 1}
\label{UWAbb}
\end{figure}
    \end{document}

For centering subfigures inside table columns you can redefine column types as

{>{\centering\arraybackslash}m{0.5\hsize} ...}

Best Answer

Related Solutions

[Tex/LaTex] Need help indexing subfigures: reference bugs using `subfigure` and `subcaption` not compatible with specialized document class

[Tex/LaTex] Ordering subfigures inside a figure environment

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