[Tex/LaTex] Subfigure referencing shows Roman number

cross-referencingsubfloats

I am trying to refer figures and subfigures in my thesis. When i refer entire figure( which contains subfigures) I get it correctly as shown Fig. 1.1. Whenever I am referencing a subfigure. It shows roman numeral eg. Fig.I.1(a). How to get it as Fig. 1.1(a). I am adding a minimum working example. First is for main file. and second is chapter file

    \documentclass[12pt,twoside,openright]{report}
\ProvidesPackage{mypackage}
\usepackage{subfigure}
\usepackage[subfigure]{tocloft}
\usepackage[dvips]{graphicx}
\usepackage[cmex10]{amsmath}
\usepackage{setspace}
\usepackage{float}
\usepackage[margin=1in]{geometry}
\usepackage{cite}
\usepackage{caption}
\usepackage{etoolbox}
\usepackage{tabularx}
\usepackage[toc,page]{appendix}
\usepackage{acronym}
\usepackage{titletoc}

\cleardoublepage %\cleardoublepage %for openright

\renewcommand{\chaptername}{CHAPTER}

\renewcommand{\thechapter}{\Roman{chapter}}%chapter number in roman
\makeatletter
\renewcommand{\thefigure}{\arabic{chapter}.\arabic{figure}}

\renewcommand{\theequation}{\arabic{chapter}.\arabic{equation}}

\setcounter{section}{0}
\makeatletter
\renewcommand{\thesection}{\arabic{chapter}.\arabic{section}}
\setcounter{figure}{0}

\makeatletter
\renewcommand{\thefigure}{\arabic{chapter}.\arabic{figure}}

\renewcommand{\theequation}{\arabic{chapter}.\arabic{equation}}
\begin{document}

%\renewcommand{\thechapter}{\arabic{chapter}}

\include{MWCchapter_01}




\end{document}

Chapter MWC

\chapter{First Chapter}
\section{General}


If I refer entire figure I get it properly as Fig. \ref{Figure}. However if I refer subfigures, it shows roman numeral 
Fig.\ref{FigureA} and 
Fig. \ref{FigureB}  which I dont want (it should be shown as Fig. 1.1(a) and Fig. 1.1(b)). The figures, subfigure captions and numbering are proper. However the problem comes during referencing.

%

\begin{figure}[!htbp]
\centering
\subfigure[FigureA]{%
\includegraphics[width=3in]{FigureA}
\label{FigureA}}
\subfigure[FigureB]{%
\includegraphics[width=3in]{FigureB}
\label{FigureB}}
\caption{Figure}
\label{Figure}
\end{figure}

Best Answer

The subfigure package contains the following instruction:

\let\p@subfigure=\thefigure

This defines the "prefix string" that LaTeX inserts just ahead of \thesubfigure during the creation of cross-references to objects of type subfigure. Because the code (inappropriately, in my view!) uses the \let device to set up the macro \p@subfigure, and because \thefigure is set by the report document class to be a composite of the chapter number (in Roman numerals) and the actual figure number (in arabic numerals), you end up getting strings of the form I.1(a).

The reason \let isn't appropriate here is because \let makes a static macro definition: the properties of \thefigure that are in effect when \let\p@subfigure=\thefigure is run, i.e., during the processing of the code contained in report.cls, continue to be used even after \thefigure gets changed later on (in the preamble).

The immediate remedy is to run the following code at the end of the preamble:

\makeatletter
\renewcommand{\p@subfigure}{\thefigure}
\makeatother

The real remedy, though, is not to use the subfigure package in the first place. It's been deprecated for years and years, and good substitutes -- the subfig and subcaption packages -- are available.

Related Solutions

[Tex/LaTex] Referencing Subfigure in Subfloat

First of all \subfloat was indeed defined in very early versions of the subcaption package but this was never a documented feature (and has proven to be a very bad idea anyway since it was not 100% compatible with \subfloat offered by the subfig package). As equivalent the subcaption package offers the (well documented) command \subcaptionbox with a slightly different (and enhanced) syntax and behaviour:

\documentclass{article}
\usepackage[demo]{graphicx}
\usepackage{caption}
\usepackage{subcaption}

\begin{document}

\begin{figure}
     \subcaptionbox{A subcaption.\label{figure:subfigure1}}{\includegraphics[width=2cm]{logo}}
     \caption{A caption.}
     \label{figure:figure1}
\end{figure}

\noindent
Subfigure \ref{figure:subfigure1}, Figure \ref{figure:figure1}.

\end{document}

(Please note when using \subcaptionbox the \label needs to be placed inside the caption argument, not inside the content argument.)

[Tex/LaTex] Subfigure – Missing number

It seems that you use obsolete package subfigure. Instead it try to use for example subfig which is replacement for it:

\documentclass{article}
\usepackage{graphicx}
\usepackage{subfig}

    \begin{document}
\begin{figure}[htb]
\centering
\begin{minipage}{0.8\textwidth}
    \centering
    \subfloat[First caption]
    {
        \includegraphics[width=0.39\textwidth]{example-image-a}
        \label{fig:first_sub}
    }
    \\
    \subfloat[Second caption]
    {
        \includegraphics[width=0.39\textwidth]{example-image-b}
        \label{fig:second_sub}
    }
    \subfloat[Third caption]
    {
        \includegraphics[width=0.39\textwidth]{example-image-c}
        \label{fig:third_sub}
    }
    \caption{Common figure caption.}
    \label{fig:sample_subfigures}
\end{minipage}
\end{figure}
    \end{document}

It gives:

Addendum: Another better possibility -- as said Torbjørn T. in his comment -- is to use package subcaption. Considering it above code become:

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

    \begin{document}
\begin{figure}[htb]
\centering
\begin{minipage}{0.8\textwidth}
    \centering
\begin{subfigure}[b]{0.33\textwidth}\centering
        \includegraphics[width=0.9\textwidth]{example-image-a}
        \caption{First caption}
        \label{fig:first_sub}
\end{subfigure}
    \\
\begin{subfigure}[b]{0.33\textwidth}\centering
        \includegraphics[width=0.9\textwidth]{example-image-b}
        \caption{Second caption}
        \label{fig:second_sub}
\end{subfigure}
\begin{subfigure}[b]{0.33\textwidth}\centering
        \includegraphics[width=0.9\textwidth]{example-image-c}
        \caption{Third caption}
        \label{fig:third_sub}
\end{subfigure}
    \caption{Common figure caption.}
    \label{fig:sample_subfigures}
\end{minipage}
\end{figure}
    \end{document}

Obtained image is (almost) the same as before.

Best Answer

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[Tex/LaTex] Referencing Subfigure in Subfloat

[Tex/LaTex] Subfigure – Missing number

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