[l2h] Wrong figure numbers in figure captions when I attempted to have my figures automatically numbered using ~\ref..... commands in my .tex file

Pat Somerville l_pat_s at hotmail.com
Thu Jan 17 01:22:12 CET 2013

Hello.  Thanks, Les Kitchen and Robin Fairbairns, for kindly taking the time 
to write to me.  I appreciate people like you who are willing to help other 
people!  Sorry, my writing was admittedly not very
historically specific.----If one can manage it, of course it's better to 
write on a topic when it is fresh in one's mind
and experience rather than to wait for weeks to months later like I tried to 
do.  Unfortunately while online clicking on the hyperlink 
http://www.tex.ac.uk/faq/cgi-bin/texfaq2html?label=minxampl, kindly provided 
to me, did not "take" me to the corresponding Web page on the Internet. 
While online after clicking on that hyperlink I received the message "The 
requested URL /faq/cgi-bin/texfaq2html was not found on this server."  But 
regardless of that message, I found a way to reach the content on that Web 

1)  On the Internet "go" to the Web page http://www.tex.ac.uk/.
2)  Click on the hyperlink reading "UK TUG FAQ."
3)  On the ensuing Web page under "Documentation and Help" click on the 
hyperlink reading 'How to make a "minimal example".'  Then while there on 
the Internet from the address bar of my Mozilla Firefox-18 Web browser I 
copied and pasted here the Uniform Resource Locator (URL) 
http://www.tex.ac.uk/cgi-bin/texfaq2html?label=minxampl, which matches the 
Web address I cited above.

So I think this is a case in which that final Web page could not be reached 
from the Internet by inputting just the final URL into a Web browser. 
Instead, as I outlined above, I had to click on some hyperlinks on other Web 
pages in order to reach it.

I figured out how to "reach" that Web page after I had already written most 
of what is below this paragraph in this write-up.  I hope you don't mind; 
but my approach in tackling the problem of having automatically numbered 
figures in a LaTeX2HTML-produced, .html (HyperText Markup Language) output 
file has turned out to be very different than providing you with a minimal 
example of my failing LaTeX code, as recommended on the above Web page. 
Nevertheless the "Building-up" and "Hacking-down" approaches discussed on 
that Web page do appear to be valid approaches toward "homing in" on the 
cause of a problem in LaTeX code.  So at least for the benefit of other 
people, thanks, Robin Fairbairns, and/or whoever kindly prepared the 
contents of the above Web page, for preparing them.  You or someone wrote on 
the cited Web page, "First, preparing a minimum document very often leads 
you to the answer, without all the fuss of posting and looking for 
responses."---When and if that happens, that would demonstrate that your 
procedure is or procedures are very good toward finding the causes of 
problems in LaTeX code!

Here are the versions and/or times of release or production of the codes 
LaTeX and LaTeX2HTML to which my writing below applies:

LaTeX2e, September 24, 2009
LaTeX2HTML version 2008, version 1.71
Gratefully I have a solution for having figures automatically numbered in a 
.html file mostly produced by the code LaTeX2HTML in conjunction with the 
code LaTeX plus some final editing of the HTML source code in that file. 
Les mentioned using the command \caption.  I learned that it is a part of 
LaTeX's figure environment, as in an environment which begins with 
\begin{figure} and ends with \end{figure} (But I think there may be a 
separate software package called "caption" invoked by the command 
\usepackage{caption} with which I experimented recently, but finally did not 
use in my solution.).  I found a good posting at 
http://www.math.uiuc.edu/~hildebr/tex/tips-figures.html on the Internet 
which includes the following LaTeX commands:

\caption{Plot of the function $sin x$}

Figure \ref{sineplot} shows a plot of %just an example of textual reference 
to the figure in the document

The word "sineplot" has two functions in the above code: 1) It is the name 
of a figure file, for example sineplot.eps or sineplot.jpg, without both its 
extension, for example eps or jpg, and the period separating "sineplot" 
from, for example, eps or jpg.  2) It is the label assigned to the figure in 
the above code.  I made some minor changes to the above LaTeX procedure:

In the file name I might have included the .eps (Encapsulated PostScript) 
I may have used the format \caption[....]{....} with the caption text 
between the brackets repeated within the braces.
Also I may have included a width option in the \includegraphics command, as 
in the form of something like \includegraphics[width=5.99in]{myfigure.eps}.
And I might have had a tilde in textual references as in the form "in 
Fig.~\ref{FigureLabel}".  Also I read that the software package called 
graphicx may possibly conflict with other software packages; so somewhere 
along in my recent experimenting I placed graphicx first in my list of 
software packages I had listed in \usepackage{graphicx,..,..,.....}. 
Eventually I switched to using \begin{center} and \end{center}, but perhaps 
not in this early stage.

My working document in my experimenting reported here contained text and 
LaTeX commands on which an execution of latex and latex2html.... commands 
had failed to produce correct figure numbers in the .html output file 
produced by LaTeX2HTML.  Often  for my tests I ran a latex command three 
times and a latex2html command twice on the same .tex, LaTeX file. 
Something close to the above procedure, using the \caption instead of the 
\parbox command for figure captions, gratefully produced good figure 
numbering in the DeVice Independent (.dvi) output file produced by a command 
of the form "latex MyLaTeXFile.tex".  But unfortunately in the .html output 
file produced by LaTeX2HTML the references in text to figures using commands 
of the form \ref{FigureLabel} resulted in the wrong figure numbers; and the 
figure numbers were missing in the figure captions.

Given the kind writing of Robin Fairbairns to me, in an attempt to obtain 
good LaTeX2HTML output I decided to switch to putting my figure captions 
within the braces of a \parbox command; for a period of time I abandoned the 
use of the \caption command.  But unfortunately I did not have success that 
way in a .html file.  From 
http://www.cv.nrao.edu/~abridle/l2h4nrao/l2h4nrao.pdf for LaTeX2HTML I saw 
the following set of commands:

And within that write-up, written by probably A. Bridle, I found the 
important statement:

"Note that the \label command must come after, or within, the caption 
command for Figures and Tables, in order to generate the correct reference."

That statement was supported by the results of my experiments with LaTeX 
code in the use of LaTeX2HTML.  That is I could not obtain correct figure 
numbers in the LaTeX2HTML, .html output file unless in my .tex, LaTeX file I 
had a \caption.. command immediately preceding a command of the form 
\label{MyFigureLabel}.  So the use of the word "must" in A. Bridle's above 
writing seems very appropriate to me.

Comparing captions placed within \parbox, LaTeX commands to captions placed 
within \caption commands I prefer the right- and left-justified appearance 
of the captions in the corresponding .html file with the captions placed 
within \parbox commands; from my experience captions within \caption 
commands in the corresponding .html output file were centered, but with left 
and right "edges" of the lines of text that were often not vertically 
aligned.---This latter effect was often noticeable in multiline captions in 
a .html output file produced by LaTeX2HTML.

Secondly by experience I found that I should also include specifications for 
the heights of my figures within my \includegraphics commands.  So in my 
.tex, LaTeX file I tried a set of commands similar to the ones below, 
placing my figure captions within \parbox commands, and also having an empty 
\caption{} command so as to obtain the correct figure numbers in the 
LaTeX2HTML, .html, output file in both text and figure captions:

As shown in Fig.~\ref{MyFigureLabel} ....
Here is where I would place my caption to the Figure.}
\vspace{5 mm}
\noindent More text here

I changed some names in the above lines of code to names different from the 
ones which actually appeared in my .tex, LaTeX file.  Note that to obtain 
both the abbreviation "Fig." and the figure number within my figure caption 
in the output, .html file, within my \parbox command in my .tex, LaTeX file 
I have text and a command of the form "Fig.~\ref{MyFigureLabel}.  Here 

The above solution produced the correct, automatically numbered figure 
numbers in both the text and figure captions of my output, .html file.  But 
the inclusion of the empty \caption{} command had the unwanted result of 
producing, for example, "Figure 1:" right under my figure caption for that 
figure in both the LaTeX, .dvi and LaTeX2HTML, .html output files.  By a few 
means with ideas from Web postings I tried to by LaTeX coding eliminate such 
unwanted displays in my .html, output file, but did not succeed in doing so 
(Perhaps some procedures posted on the Internet for eliminating something 
like "Figure 1:" in a figure caption might work in a .dvi output file 
produced by LaTeX; but my main goal was to find a working procedure for a 
.html, output file.).

Of course one can get rid of content he does not want in a .html file he 
produced by deleting that content from the HTML source code for the .html 
file.---And that is what I did in this case.  I could open the .html output 
file produced by LaTeX2HTML in a text editor and delete lines, perhaps 
called HTML tags, of the following forms for each of my figures:


.  After using a second text editor I eventually had the edited .html file 
saved as a text file in the 8-bit, Uniform Transformation Format (UTF-8) 
encoding.  Then at last gratefully I could open that .html file in my 
Konqueror Web browser and see the following features that I wanted to see: 
1) no, for example, "Figure 8:" underneath a caption to figure 8; 2) 
internal hyperlinks in text displaying the correct figure numbers; 3) for 
example, "Fig. 1. " at the beginning of a figure caption to figure 1 with 
the correct figure number there; and 4) the figure captions neatly right- 
and left-justified.  One missing feature was that in having figure captions 
within \parbox commands, internal hyperlinks within a figure caption to 
another figure in my .html output file did not appear in the output, .html 
file.  For example, an internal hyperlink to figure 8 in the caption to 
figure 9 was only displayed as Fig. 8 with the "8" appearing in black 
instead of the blue text one would often see in my installation of the 
Konqueror Web browser in the case of an internal hyperlink.

Perhaps someone knows of a better way to have figures automatically numbered 
in a .html, output file produced by LaTeX2HTML.  For example, if someone 
knows of a way to have good-looking, left- and right-justified caption text 
confined to the width of a figure and located below it, then perhaps the 
caption could be included within the braces of a \caption{} command without 
the use of a \parbox command.  And in that case editing the .html source 
code produced by LaTeX2HTML could be unnecessary.


From: "Robin Fairbairns" <Robin.Fairbairns at cl.cam.ac.uk>
Sent: Tuesday, January 15, 2013 12:07 PM
To: "Pat Somerville" <l_pat_s at hotmail.com>
Cc: <latex2html at tug.org>
Subject: Re: [l2h] Wrong figure numbers in figure captions when I attempted 
to have my figures automatically numbered using ~\ref..... commands in my 
.tex file

> Pat Somerville <l_pat_s at hotmail.com> wrote:
>> Hello.  I tried to automatically number
>> figures using commands like "Fig.~\ref{....}" and in text and \label{...}
>> commands within figure environments in my .tex file.  I might have tried 
>> to
>> include figure captions within \caption and/or \parbox commands.
>> Anyhow, my figure numbers were incorrect in the figure captions.
>> Another variable is that I have been using both pdflatex and latex plus
>> latex2html commands in recent weeks; so there is a question whether I was
>> examining a Portable Document Format (.pdf) output file produced by a
>> pdflatex command or a .html file produced by executing a latex2html
>> command.  Recently I gave up on getting the figure numbers within 
>> captions
>> correct by attempting to have the figures automatically numbered via
>> the use of ~\ref{....} commands.---That is I numbered the figures myself
>> everywhere within a .tex file.  Would someone please guide me or refer
>> me to a guide of consistent \caption or \parbox commands together with
>> ~\ref{...} in text and \label{...} commands within figure environments 
>> for
>> automatic figure numbering in text that will enable both the figure 
>> numbers
>> within figure captions and the figure numbers within text to be correct? 
>> A
>> desirable solution for the automatic numbering of figures within both the 
>> figure
>> captions and the text of a document would be one which would work in a 
>> .tex file
>> with either pdflatex or latex2html commands.
> this is either totally trivial (sequence should always be
>  \caption{...}
>  \label{...}
> )
> or totally impossible to diagnose with statements like
>  I might have tried to include figure captions within \caption and/or
>  \parbox commands.
> captions would work within a \parbox but not with \caption.
> tbh, this doesn't sound particularly specific to latex2html: i would
> guess that if you feed rubbish to latex2html, you're _more_ likely to
> get rubbish out than if you feed it to (la)tex.  in such a circumstance,
> the (la)tex problem may be more amenable to comprehension.
> the standard recommendation is that you produce a "minimal example" of a
> problem.  this is described (for example) in
>  http://www.tex.ac.uk/faq/cgi-bin/texfaq2html?label=minxampl
> (there are different explanations all over the web).
> post the minimal example and we might be able to help.  (those of us
> owning crystal balls can probably see the solution without the minimal
> example, but we ordinary mortals can only understand things that have
> happened.)
> roibn (anag)

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