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Converting tpic \special's into \pdfliteral's by awk
====================================================
The experimental awk-script tpic2pdftex builds one bridge between the
"pic" graphics language and pdfTeX.
What tpic2pdftex does:
We start from one or more graphics described by the venerable pic language
(see e. g., file example.pic), embedded inline within pdfTeX or pdfLaTeX
code, and limited by classical .PS and .PE markers as known from groff.
The pic graphics might be annotated by TeX or LaTeX text. This pic/TeX
language-mix file is piped through the (groff-)pic preprocessor and the
tpic2pdftex script. The result is a TeX file with inline \pdfliteral{}
sections, for further processing by pdftex or pdflatex.
Usage
-----
$ export LANG="C"
$ pic -t somefile.pic | tpic2pdftex > somefile.tex
Process somefile.tex by pdftex or pdflatex.
Files
-----
tpic2pdftex
The executable awk-script for converting tpic specials into pdfliterals
for further processing by pdftex. For usage see head of this file.
tpic2pdftex.1
The man-page for tpic2pdftex.
example.pic
A small pic sample file (plain-TeX), as input.
example.pdf
The resulting example PDF file (the dotted and dashed ellipses are
part of gpic from version 1.19.1 on).
beamerexample.pic
Another small pic sample file (pdfLaTeX), which shows that images
created by pic can be incrementally built up in the beamer class.
beamerexample.pdf
The resulting PDF file from beamerexample.pic.
Makefile
The Makefile used to produce file example.pdf and beamerexample.pdf
from the input files.
README
This file.
Portability
-----------
This awk-script should be useable on all systems on which a working awk
program (e. g., awk, gawk, mawk) is installed.
The script has been tested with GNU pic (groff), versions 1.18.1 and
1.19.3, and pdftex, versions 1.40.9 and 1.50.0 on a debian lenny (5.0)
x86_64 PC.
Remarks
-------
1. If more than a single .pic file provide the source for the .tex file,
there are two options: Either separately run all .pic files through the
pic -t | tpic2pdftex pipe and combine them by TeX's \input statements
as usual. Or make one big .pic file by using the soelim program from
groff (with option -t), and then run the resulting .pic file through pic,
tpic2pdftex, and TeX. File embedding by soelim is done by the request:
.so somefile.pic
The process call then could look like e. g.:
$ soelim -t somefile.pic | pic -t | tpic2pdftex > somefile.tex
2. Depending on the awk version, "locale" settings might have influence
on the separator in floating point numbers. PDF requires decimal _dots_
(e. g., 3.14 rather than 3,14) which is checked by tpic2pdftex at the
begin of the run. If you get an ERROR message, set LANG="C", so that
decimal dots are used as float separators.
Literature
----------
Brian W. Kernighan: PIC -- A Graphics Language for Typesetting, User
Manual, Revised, May, 1991. File cstr116.ps.
Eric S. Raymond: Making Pictures With GNU PIC. File gpic.raymond.ps.
Both files are available online from various places.
Comments welcome. Have fun!
Hartmut
$Id: README,v 1.11 2010/01/16 12:38:21 hahe Exp hahe $
======================================================================
CTAN SOURCE TREE INFORMATION
This CTAN source tree has been automatically extracted from the TeXLive
Subversion repository at svn://tug.org/texlive/trunk/Build/source/utils/.
It is not possible to use the supplied configure script.
In fact, if you call it; you will be told as such.
This source can only be compiled in a texk build environment.
You will need to download the whole environment, please refer to
http://www.tug.org/texlive/svn/.
It all boils down to a Subversion checkout of
svn://tug.org/texlive/trunk/Build/source
This will be the source tree that you can use for compilation. The
CTAN directory is there for archival and informational purpose.
For your convenience, the original configure script from the source
tree is available in this directory as configure.texk.
For the CTAN team,
Joachim Schrod <jschrod@acm.org>
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