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I'm asking a question is quite similar to this one (where I don't seem to be able to leave comments):

MikTex error for PNG images when trying to produce DVI

I'm producing a PDF document, but I'm using the DVI previewer inside LeD while doing so. Including graphics is a bit problematic. Suppose I want to include a file simple_ambiguity.png.

\includegraphics[width=\textwidth]{simple_ambiguity.png}

doesn't work with the DVI, because of a bounding box error. This is a nuisance because I don't actually care about having the graphics display accurately inside the DVI, or even having it take up the right amount of space -- I just want it to compile.

At the moment I'm using a workaround: I'm creating a dummy `empty picture' file simple_ambiguity.eps whose dimensions I don't really care about, and then writing

\includegraphics[width=\textwidth]{simple_ambiguity}

But this is a nuisance because I have to manually create an eps every time I add a new picture. What I'm looking for is some simple fire-and-forget solution that will make the DVI just compile.

(Of the answers in the question I linked to, the first seems to involve manually creating bounding boxes, and the second involves invoking ImageMagick on every compile, which will be unnecessarily slow & introduce a rather awkward dependency.)

Community
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Mohan
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    I'm confused. If you are using the .dvi route, you need .eps graphics for final output. On the other hand, if you are using .png graphics you must be using PDF output mode, so where does the .dvi part come in? – Joseph Wright Aug 10 '12 at 14:00
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    You need some minimum reputation to leave comments everywhere. But you can always edit and/or comment your own quaestions. – matth Aug 10 '12 at 14:02
  • @Joseph Wright: I am using a IDE called LeD, and its built-in viewer only supports DVIs. As I said, I don't actually care about having the graphics display accurately inside the DVI, or even having it take up the right amount of space -- I just want it to compile so I have a rough preview available while editing. – Mohan Aug 10 '12 at 14:48
  • @Mohan I still don't understand: you are using the dvips route, so you have to have .eps graphics for your final PDF production, quite independent of the viewer in LeD. – Joseph Wright Aug 10 '12 at 15:10
  • @Joseph Wright: LeD allows one to invoke both latex and pdflatex. I use latex (frequently) while editing, together with the built-in previewer, to check everything except the pictures. I then use pdflatex to get the document I actually want to distribute. – Mohan Aug 10 '12 at 16:51
  • @Joseph Wright: this is the basic approach I was using... http://www.math.northwestern.edu/comp-help/including_graphics.html – Mohan Aug 10 '12 at 19:43

4 Answers4

8

you can use png or gif images also with the dvi route, but you have to define some graphic rules for the converting. The following needs 

latex <file>
dvips -R0 <file>
ps2pdf <file>.ps

The program convert must be installed. It is part of the ImageMagick bundle

\documentclass{article}
\usepackage[dvips]{graphicx}    
\DeclareGraphicsRule{.png}{eps}{.bb}{`convert #1 eps:-}
\DeclareGraphicsRule{.gif}{eps}{.bb}{`convert #1 eps:-}
\usepackage{grfext}
\AppendGraphicsExtensions*{.png,.gif}
\usepackage{bmpsize}

\makeatletter
\newcommand*{\IncludeGraphics}[2][]{{%
    \let\@found\@empty
    \@for\@type:=\bmpsize@types\do{%
      \ifx\@found\@empty
        \@nameuse{bmpsize@read@\@type}{#2.\@type}%
        \ifbmpsize@ok
          \let\@found=\@type
        \fi
      \fi
    }%
    \ifx\@found\@empty\includegraphics[{#1}]{#2}%
    \else\includegraphics[{natwidth=\bmpsize@width,natheight=\bmpsize@height,#1}]{#2}%
    \fi}}
\makeatother

\begin{document}
  \IncludeGraphics{lion.png} % a png image
  \IncludeGraphics{lion.gif} % a gif image
\end{document}
  • Thank you for theq uick reply. Correct me if I'm wrong, but isn't this the same as 'involves invoking ImageMagick on every compile, which will be unnecessarily slow & introduce a rather awkward dependency'? – Mohan Aug 10 '12 at 14:49
8

If you just want the image to go away in dvi/dvips mode then:

\makeatletter
\def\temp{dvips.def}
\ifx\Gin@driver\temp
\def\Ginclude@graphics#1{\def\temp{#1}---image \expandafter\strip@prefix\meaning\temp---}
\fi
\makeatother

In your preamble will have that effect.

David Carlisle
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  • Thank you. I think this is almost exactly what I want. Is there an easy way to have it e.g. leave two inches of vertical whitespace instead of including nothing? – Mohan Aug 10 '12 at 14:49
  • [I can insert \bigskip before the ---image, but \vspace and \vskip don't work.] – Mohan Aug 10 '12 at 15:01
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    put the text into a parbox and use the optional parbox arguments to specify width and height of the box – David Carlisle Aug 10 '12 at 15:48
  • Nice one, does the job for me! – Felix Goldberg Nov 12 '13 at 10:45
  • Exactly what I was looking for. Is there also an extension to this trick to disable the bibliography when generating a dvi file? – Bertjan Broeksema Apr 17 '14 at 07:38
  • @BertjanBroeksema It seems a strange request, but anyway the ifpdf package allows you to test for pdflatex and do different things depending. – David Carlisle Apr 17 '14 at 09:04
  • @DavidCarlisle Not that strange if you know the goal (I hope). When I'm writing I'd like to keep track of wordcount. I found catdvi to get plain ascii from latex and now I want to get rid of the reference when generating the dvi so that I can run 'wc -w' on the output of catdvi and get a reasonable estimate. – Bertjan Broeksema Apr 17 '14 at 09:36
  • @BertjanBroeksema OK:-) although I'd be surely tempted to tell anyone asking for a word count to go away and not be silly, I understand that that's always not a good idea if trying to get things published or theses accepted;-) (you could try pdftotext on the pdf rather than have dvi just for that) – David Carlisle Apr 17 '14 at 11:23
  • @DavidCarlisle argh =:D. Cleaned up my tex files immediately! Thanks for the tip! Although, pdftotext does include the references, which can be a significant amount of "words" even though they shouldn't be counted as such. – Bertjan Broeksema Apr 17 '14 at 11:27
  • @BertjanBroeksema you could use sed or perl or whatever to just delete all lines of the text file after "References" or whatever your title is. – David Carlisle Apr 17 '14 at 11:41
3

You could also manually add the natwidth and natheight properties to each image like:

\includegraphics[natwidth=800,natheight=600,width=\textwidth]{simple_ambiguity.png}

This should work with both latex and pdflatex.

Douba
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2

If you don't care about the size of the picture you can simply use the demo-option of the graphicx package: 

\documentclass[a4paper,12pt]{article}
\usepackage[demo]{graphicx}

\begin{document}

\includegraphics[width=\textwidth]{dontexist.png}

\end{document}

Or you can redefine \includegraphics:

\documentclass[a4paper,12pt]{article}
\usepackage{graphicx}
\renewcommand\includegraphics[2][]{\fbox{here graphic #2}}
\begin{document}

\includegraphics[width=\textwidth]{dontexist.png}

\end{document}
Ulrike Fischer
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