Figure labels with custom captions

Question

Currently I am writing a paper for a specific journal which however has a unique style thus causing some malfunctions in LaTex. Let me be more specific. The following is the first figure of the paper.

\begin{figure}[!tH]
\centering
\includegraphics[width=0.7\hsize]{fig1.eps}
\captionb{1}{This is a test caption.}
\label{test}
\end{figure}

As we can see, the caption is modified and it is not the usual \caption{} but \captionb{#}{} instead, where # is the number of the figure (I admit this is not very clever).

Now when I write inside the text Fig. \ref{test} I get Fig. with empty space where the number 1 should be. I guess that this is because of the modification of the caption command.

A MWE can be found here: MWE

main.tex:

\documentclass[10pt,a4paper,twoside]{article}
\usepackage{epsfig}
\usepackage{baltlat6}
\usepackage{array}
\usepackage{here}
\usepackage{natbib}
\pagestyle{headings}

\usepackage[dvipdfm=true]{hyperref}
\hypersetup{pdftitle = The title of my PDF, pdfauthor = My name, pdfsubject= The subject, pdfkeywords = keyword1 keyword2 keyword3}
\hypersetup{colorlinks = true, linkcolor = blue, anchorcolor = red, citecolor = blue, filecolor = red, pagecolor = red, urlcolor = blue}

\begin{document}
\ \
\vspace{0.5mm}
\setcounter{page}{1}
\vspace{8mm}

\titlehead{Baltic Astronomy, vol.\,00, 0--000, 2014}

\titleb{TITLE}

\begin{authorl}
\authorb{Author}{}
\end{authorl}

\begin{addressl}
\addressb{}{Affiliation}
\end{addressl}

\submitb{Received: - ; accepted: -}

\begin{summary}
Abstarct
\end{summary}

\begin{keywords}
keywords
\end{keywords}

\resthead{title}
{author}

\sectionb{1}{INTRODUCTION}

\begin{figure}
\centering
\includegraphics[width=0.7\hsize]{example-image}
\captionb{1}{This is a test caption.}
\label{tst}
\end{figure}

As we can see in Fig. \ref{tst} there is ...

\end{document}

baltlat6.sty:

% Baltic Astronomy Document Style BALTLAT6.STY  (updated 2007 Dec 05).

\font\norma=cmr10
\font\normbf=cmbx10
\font\smallbf=cmbx9
\font\smalit=cmti9
\font\itl=cmti9
\def\em{\it}
\def\norm{\normalsize}
%SOME LITHUANIAN LETTERS
\def\ac{a\kern-.35em\accent'30\kern-.05em}
\def\Ac{A\kern-.35em\accent'30\kern-.05em}
\def\uc{u\kern-.35em\accent'30\kern-.05em}
\def\Uc{U\kern-.35em\accent'30\kern-.05em}
\def\msf{\footnotesize}


%\@options
\lineskip 1pt
\normallineskip 1pt
\def\baselinestretch{1}
\parskip 1pt
\textwidth=125mm
\textheight=190mm
%\oddsidemargin=25.4mm
%\evensidemargin=9.78mm
\oddsidemargin=2.2mm % at twoside, but for the same position of text
\evensidemargin=2.2mm % at twoside, but for the same position of text
\baselineskip=11pt



\def\titlehead#1{\vskip-15mm{\noindent\it #1\norm}
\vskip15mm
\thispagestyle{empty}}

\def\fpagehead#1{
\thispagestyle{myheadings}
\markright{\it Baltic Astronomy, vol.#1.}
\markboth{\it Baltic Astronomy, vol.#1.}
{\it Baltic Astronomy, vol.#1.}
\norm}


\def\resthead#1#2{
\pagestyle{amyheadings}
\markright{\it #1}
\markboth{\it #2}{\it #1}
\norm}
\def\runninghead{\resthead}



\marginparwidth 2cm
\marginparsep 10pt
\topmargin 22.17pt

\headheight 12pt
\headsep 25pt

\advance\textheight by \topskip
\columnsep 10pt
\columnseprule 0pt
\footnotesep 8.4pt

\skip\footins 10.8pt plus 4pt minus 2pt
\floatsep 12pt plus 2pt minus 4pt
\textfloatsep 10pt plus 2pt minus 4pt
\intextsep 10pt plus 4pt minus 4pt


\def\captionb#1#2{\small\vspace{2mm}
\vbox{\baselineskip=9.5pt\hhuad{\bf Fig.\,#1.}
 \,#2} \baselineskip=11pt}

\def\captionr#1#2{\small\vspace{2mm}
\vbox{\baselineskip=9.5pt{\bf Fig.\,#1.}
 \,#2} \baselineskip=11pt}

\def\captionc#1#2{\small\begin{center}\vspace{2mm}
\vbox{\baselineskip=9.5pt{\bf Fig.\,#1.}
 \,#2}\end{center}\baselineskip=11pt}


\leftmargini 2.5em
\leftmarginii 2.2em
\leftmarginiii 1.87em
\leftmarginiv 1.7em
\leftmarginv 1em
\leftmarginvi 1em



\def\titleb#1{\noindent\hskip-.1pt{\parbox{123mm}{\bf #1}}\vspace{11mm}\norm}

\def\authorb#1#2{  #1$^{#2}$}
\def\addressb#1#2{\noindent{  $^{#1}$\,}
      \vtop{\hsize120mm\it\noindent\baselineskip10pt #2}\vskip.3mm\norm}


\def\authorl{\noindent\hskip.1pt}
\def\endauthorl{\vskip1mm\par\norm}

\def\addressl{\noindent\vskip.1pt}
\def\endaddressl{\vskip5mm\par\norm}

\def\submitb#1{\vskip2mm \noindent #1\vskip8mm}

\def\thanks#1{\vspace{4mm} ACKNOWLEDGMENTS.\ \ #1\par}

\def\sectionb#1#2{\vspace{5mm}\hbox{\kern-.9pt
{#1.\ \ }\vtop{\noindent #2}\nopagebreak}
\vspace{1mm} \noindent\baselineskip=11pt}

\def\subsectionb#1#2{\vspace{3mm}\hbox{\kern-.9pt
{\it #1.\ \ }\vtop{\noindent\it #2}\nopagebreak}
\vspace{.5mm} \noindent\baselineskip=11pt}

\def\subsubsectionb#1#2{\vspace{3mm}\hbox{\kern-.9pt
{#1.\ \ }\vtop{\noindent #2}\nopagebreak}
\vspace{.5mm} \noindent\baselineskip=11pt}


\def\summary{\vskip-5pt\noindent
\rightskip=0pc\leftskip=1pc%\parindent=\z@
 \baselineskip 10pt
{\bf Abstract.\ }}
\def\endsummary{\par\norm}


\def\keywords{\vskip 5pt\noindent
\rightskip=0pc\leftskip=1pc%\parindent=\z@
 \baselineskip 10pt
{\bf Key words:\ }}
\def\endkeywords{\par\norm}



% REFERENCES
%
\def\References{\vskip4mm
{\noindent
  REFERENCES\hfill}
  \vskip1mm

\norm}
\def\refb{\baselineskip=10pt
\vskip.3mm
\hangindent12pt\hangafter=1
\noindent\ignorespaces}
\def\endrefb{\endgroup}
%


\def\ps@myheadings{\let\@mkboth\@gobbletwo
\def\@oddhead{\hbox{}\it\rightmark \hfil\norm}
\def\@oddfoot{}\def\@evenhead{\it\leftmark\hbox {}\hfil\norm}
\def\@evenfoot{}\def\sectionmark##1{}\def\subsectionmark##1{}}

\def\ps@amyheadings{\let\@mkboth\@gobbletwo
\def\@oddhead{\hbox{}\it\rightmark \hfil\norma \thepage\norm}
\def\@oddfoot{}\def\@evenhead{\thepage\hfil\leftmark\hbox {}}
\def\@evenfoot{}\def\sectionmark##1{}\def\subsectionmark##1{}}

%TABLE TOOLS
\def\tablerule{\noalign{\vskip.7ex}\noalign{\hrule}\noalign{\vskip.5ex}}
\def\hhuad{\vrule height0pt depth0pt width10pt}%3.5mm
\def\huad{\vrule height0pt depth0pt width5pt}  %1.75mm
\def\sadd{\vrule height0pt depth0pt width.2em}
\def\badd{\vrule height0pt depth0pt width2em}
\def\add{\vrule height0pt depth0pt width.5em}
\def\addu{\vrule height0pt depth0pt width1.3em}
\def\addXcm{\vrule height0pt depth0pt width10truecm}
\def\qua{\vrule height0pt depth0pt width2pt}
\def\lhstrut{\vrule height10pt depth7pt width0pt}
\def\hstrut{\vrule height10pt depth0pt width0pt}
\def\lstrut{\vrule height0pt depth6pt width0pt}   %all of them
\def\llstrut{\vrule height1pt depth10pt width0pt} %not visible
\def\sstrut{\vrule height10pt depth5pt width0pt}
\def\hhstrut{\vrule height18pt depth0pt width0pt}
\def\lls{\vrule height0pt depth8pt width0pt}
\def\ddown{\lower2.5ex\hbox}
\def\ddow{\lower1.7ex\hbox}
\def\down{\lower1ex\hbox}
\def\uppp{\raise1ex\hbox}
\def\dnnn{\lower1ex\hbox}
\def\uuppp{\raise2ex\hbox}
\def\vm{\vskip3mm}
\def\hd{\hskip9.5mm}
\def\hs{\hskip2mm}
\def\hm{\hskip4mm}
\def\hll{\hd&\hfil\hd}
\def\hlm{\hm&\hfil\hm}
% ASTRONOMICAL ABBREVIATIONS
%
\def\sun{\hbox{$\odot$}}
\def\sq{\hbox{\rlap{$\sqcap$}$\sqcup$}}
\def\degr{\hbox{$^\circ$}}
\def\dgr{$^\circ\!$}
\def\arcmin{\hbox{$^\prime$}}
\def\arcsec{\hbox{$^{\prime\prime}$}}
\def\fd{\hbox{$.\!^{\rm d}$}}
\def\fh{\hbox{$.\!^{\rm h}$}}
\def\fm{\hbox{$.\!^{\rm m}$}}
\def\fs{\hbox{$.\!^{\rm s}$}}
\def\fdg{\hbox{$.\!^\circ$}}
\def\farcm{\hbox{$.\mkern-4mu^\prime$}}
\def\farcs{\hbox{$.\!\!^{\prime\prime}$}}
\def\fp{\hbox{$.\!\!^{\scriptscriptstyle\rm p}$}}

%\def~{\penalty100\thinspace}
\def\ts{\thinspace}
\def\oc{ $O\!-\!C$ }
\def\gmode{$g$-mode}
\def\pmode{$p$-mode}
\def\gmodes{$g$-modes}
\def\pmodes{$p$-modes}
\def\etal{et al.} %ApJlikes it this way now
\def\msun{$\,M_{\odot}$}
\def\rsun{$\,R_{\odot}$}
\def\lsun{$\,L_{\odot}$}
\def\te{$T_{\rm e}\,$}
\def\Te{$T_{\rm e}\,$}
\def\mstr{$\,M_{\star}$}
\def\rstr{$\,R_{\star}$}
\def\lstr{$\,L_{\star}$}
\def\angstr{\small A\kern-.57em\raise1.8ex\hbox{${\scriptscriptstyle\circ}$}$\,$}
\def\Pdot{$\dot P$}
\def\Tdot{$\dot T$}
\def\Rdot{$\dot R$}
\def\Tmax{$T_{\rm max}$}
\def\mitstar{$M\!$\raisebox{-.4ex}{$\star$}}
\def\mstar#1{$10^{-{#1}} {\rm M}_{\star}$}
\def\mh{${\rm M}_{\rm H}$}
\def\mhe{${\rm M_{\rm He}}$}
%the same definitions for using them in the math
\def\msunm{\,M_{\odot}}
\def\rsunm{\,R_{\odot}}
\def\lsunm{\,L_{\odot}}
\def\teff{T_{\rm eff}}
\def\Teff{T_{\rm eff}}
\def\mstrm{\,M_{\star}}
\def\rstrm{\,R_{\star}}
\def\lstrm{\,L_{\star}}
\def\Pdotm{\dot P}
\def\Tdotm{\dot T}
\def\Rdotm{\dot R}
\def\Tmaxm{T_{\rm max}}
\def\mstarm#1{10^{-{#1}} {\rm M}_{\star}}
\def\mhm{{\rm M}_{\rm H}}
\def\mhem{{\rm M_{\rm He}}}
%\chardef\o="1C
%\chardef\O="1F

%\ps@plain
\pagenumbering{arabic}
\onecolumn

So, is there a way to fix this?

Answer 1

\captionb is defined in your custom baltlat6.sty as

\def\captionb#1#2{\small\vspace{2mm}
\vbox{\baselineskip=9.5pt\hhuad{\bf Fig.\,#1.}
 \,#2} \baselineskip=11pt}

so it is not designed for \label-ref mechanism.

Add the following lines in your preamble so to let those custom commands support it:

\makeatletter
\def\captionb#1#2{\refstepcounter\@captype\small\vspace{2mm}
\vbox{\baselineskip=9.5pt\hhuad{\bfseries Fig.\,#1.}
 \,#2} \baselineskip=11pt}

\def\captionr#1#2{\refstepcounter\@captype\small\vspace{2mm}
\vbox{\baselineskip=9.5pt{\bfseries Fig.\,#1.}
 \,#2} \baselineskip=11pt}

\def\captionc#1#2{\refstepcounter\@captype\small\begin{center}\vspace{2mm}
\vbox{\baselineskip=9.5pt{\bfseries Fig.\,#1.}
 \,#2}\end{center}\baselineskip=11pt}
\makeatother

Your modified MWE:

\documentclass[10pt,a4paper,twoside]{article}
\usepackage{epsfig}
\usepackage{baltlat6}
\usepackage{array}
\usepackage{here}
\usepackage{natbib}
\pagestyle{headings}

\usepackage[dvipdfm=true]{hyperref}
\hypersetup{pdftitle = The title of my PDF, pdfauthor = My name, pdfsubject= The subject, pdfkeywords = keyword1 keyword2 keyword3}
\hypersetup{colorlinks = true, linkcolor = blue, anchorcolor = red, citecolor = blue, filecolor = red, pagecolor = red, urlcolor = blue}

\makeatletter
\def\captionb#1#2{\refstepcounter\@captype\small\vspace{2mm}
\vbox{\baselineskip=9.5pt\hhuad{\bfseries Fig.\,#1.}
 \,#2} \baselineskip=11pt}

\def\captionr#1#2{\refstepcounter\@captype\small\vspace{2mm}
\vbox{\baselineskip=9.5pt{\bfseries Fig.\,#1.}
 \,#2} \baselineskip=11pt}

\def\captionc#1#2{\refstepcounter\@captype\small\begin{center}\vspace{2mm}
\vbox{\baselineskip=9.5pt{\bfseries Fig.\,#1.}
 \,#2}\end{center}\baselineskip=11pt}
\makeatother

\begin{document}
\ \
\vspace{0.5mm}
\setcounter{page}{1}
\vspace{8mm}

\titlehead{Baltic Astronomy, vol.\,00, 0--000, 2014}

\titleb{TITLE}

\begin{authorl}
\authorb{Author}{}
\end{authorl}

\begin{addressl}
\addressb{}{Affiliation}
\end{addressl}

\submitb{Received: - ; accepted: -}

\begin{summary}
Abstarct
\end{summary}

\begin{keywords}
keywords
\end{keywords}

\resthead{title}
{author}

\sectionb{1}{INTRODUCTION}

\begin{figure}
\centering
\includegraphics[width=0.7\hsize]{fig1.eps}
\captionb{1}{This is a test caption.}
\label{tst}
\end{figure}

As we can see in Fig. \ref{tst} there is ...


\end{document}

now yields:

---

EDIT

Since also \sectionb & friends lack this functionality, I'll suggest you to also add the following lines in the preamble

\def\sectionb#1#2{\refstepcounter{section}\vspace{5mm}\hbox{\kern-.9pt
{#1.\ \ }\vtop{\noindent #2}\nopagebreak}
\vspace{1mm} \noindent\baselineskip=11pt}

\def\subsectionb#1#2{\refstepcounter{subsection}\vspace{3mm}\hbox{\kern-.9pt
{\it #1.\ \ }\vtop{\noindent\it #2}\nopagebreak}
\vspace{.5mm} \noindent\baselineskip=11pt}

\def\subsubsectionb#1#2{\refstepcounter{subsubsection}\vspace{3mm}\hbox{\kern-.9pt
{#1.\ \ }\vtop{\noindent #2}\nopagebreak}
\vspace{.5mm} \noindent\baselineskip=11pt}

---

EDIT #2

Since baltlat6.sty does not define captions for tables, we can define three types, \captiontb, \captiontr, \captiontc corresponding to \captionb, \captionr, \captionc for figures, but to be used inside tables.

So, replace all the additional code mentioned above and put the following lines in your preamble:

\def\captionb#1#2{\refstepcounter{figure}\small\vspace{2mm}
\vbox{\baselineskip=9.5pt\hhuad{\bfseries Fig.\,#1.}
 \,#2} \baselineskip=11pt}

\def\captionr#1#2{\refstepcounter{figure}\small\vspace{2mm}
\vbox{\baselineskip=9.5pt{\bfseries Fig.\,#1.}
 \,#2} \baselineskip=11pt}

\def\captionc#1#2{\refstepcounter{figure}\small\begin{center}\vspace{2mm}
\vbox{\baselineskip=9.5pt{\bfseries Fig.\,#1.}
 \,#2}\end{center}\baselineskip=11pt}

\def\captiontb#1#2{\refstepcounter{table}\small\vspace{2mm}
\vbox{\baselineskip=9.5pt\hhuad{\bfseries Table\,#1.}
 \,#2} \baselineskip=11pt}

\def\captiontr#1#2{\refstepcounter{table}\small\vspace{2mm}
\vbox{\baselineskip=9.5pt{\bfseries Table\,#1.}
 \,#2} \baselineskip=11pt}

\def\captiontc#1#2{\refstepcounter{table}\small\begin{center}\vspace{2mm}
\vbox{\baselineskip=9.5pt{\bfseries Table\,#1.}
 \,#2}\end{center}\baselineskip=11pt}

\def\sectionb#1#2{\refstepcounter{section}\vspace{5mm}\hbox{\kern-.9pt
{#1.\ \ }\vtop{\noindent #2}\nopagebreak}
\vspace{1mm} \noindent\baselineskip=11pt}

\def\subsectionb#1#2{\refstepcounter{subsection}\vspace{3mm}\hbox{\kern-.9pt
{\it #1.\ \ }\vtop{\noindent\it #2}\nopagebreak}
\vspace{.5mm} \noindent\baselineskip=11pt}

\def\subsubsectionb#1#2{\refstepcounter{subsubsection}\vspace{3mm}\hbox{\kern-.9pt
{#1.\ \ }\vtop{\noindent #2}\nopagebreak}
\vspace{.5mm} \noindent\baselineskip=11pt}