mailing-list for TeXmacs Users

["Charles James Leonardo Quarra Cappiello" <address@hidden>]

Hi,

I just realized there is a very nice and clean way to embed things like math 
and even subgraphics into eps graphics, this rely on the overpic package

You take the .eps you want to edit and include it in a minimal .tex just 
like the one in the end of this mail*,
then:
1) compile it with latex,
2) then you get dvips -E test.dvi -o test.eps, which overwrites your 
test.eps with a new one with the embedded equation (or whatever you want to 
put in there)

The beauty in this is that you dont need to embed extra-stuff into the 
document, since all what you wanted to embed in the graphics, is in the 
graphics file itself

Now, im trying to find an approach for visual editing the .eps. Until now 
there are two candidate routes:

1) With xfig:

    you convert the .eps into .fig with the following command

       pstoedit -f fig -psarg "-r600x600" test.eps test.fig

     this makes possible _any_ eps to be editable by xfig.
     you insert some latex commands into the fig as text with the xfig 
program

     Now comes some fugliness, since now you somehow have to start a script 
that scans the xfig and replaces the latex text with the corresponding 
overpic commands into the template minimal .tex file, compile it, dvi->eps 
then eps->fig, reload it in xfig and display it in "executed" latex

 2) With .. Texmacs!

    assuming you are able to write/overlay text over an image area in 
texmacs and get the position where the text was put and what the text was

     now you dont need to replace anything, you just start a script from 
texmacs that creates the template .tex, .tex -> .dvi -> .eps, which 
overwrites the former .eps, making texmacs to automatically reload it and 
display the new version!

In principle 1) is more conceptually affine, since xfig is precisely a 
program for graphics, but apparently 2) is easier to do

cheers






* The following embeds the y=x^2 equation in the 15,15 local coordinates of 
the test.eps

\documentclass[oneside,twocolumn,spanish]{scrbook}
\usepackage[T1]{fontenc}
\usepackage[latin1]{inputenc}
\usepackage{fancyhdr}
\pagestyle{fancy}
\setcounter{secnumdepth}{3}
\setcounter{tocdepth}{3}
\usepackage{graphicx, overpic}

\makeatletter

\usepackage{babel}
\makeatother
\begin{document}

\begin{overpic}{test.eps}
\put(15,15){\huge $y=x^{2}$}
\end{overpic}

\end{document}

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