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PIC2GRAPH(1)                                                      PIC2GRAPH(1)



NAME
       pic2graph - convert a PIC diagram into a cropped image

SYNOPSIS
       pic2graph [ -unsafe ] [ -format fmt ] [ -eqn delim ]

DESCRIPTION
       Reads  a PIC program as input; produces an image file (by default in Portable Network Graphics format) suitable
       for the Web as output.  Also translates eqn(1) constructs, so it can be used for generating images of mathemat-
       ical formulae.

       PIC is a rather expressive graphics minilanguage suitable for producing box-and-arrow diagrams of the kind fre-
       quently used in technical papers and textbooks.  The language is sufficiently flexible to be quite  useful  for
       state  charts,  Petri-net  diagrams, flow charts, simple circuit schematics, jumper layouts, and other kinds of
       illustration involving repetitive uses of simple geometric forms and splines.   Because  PIC  descriptions  are
       procedural and object-based, they are both compact and easy to modify.

       The  PIC  language  is  fully  documented  in  "Making  Pictures With GNU PIC", a document which is part of the
       groff(1) distribution.

       Your input PIC code should not be wrapped with the .PS and .PE macros that normally guard  it  within  groff(1)
       macros.

       The  output  image will be a black-on-white graphic clipped to the smallest possible bounding box that contains
       all the black pixels.  By specifying command-line options to be passed to convert(1) you can give it a  border,
       set the background transparent, set the image's pixel density, or perform other useful transformations.

       This program uses pic(1), eqn(1), groff(1), gs(1), and the ImageMagick convert(1) program.  These programs must
       be installed on your system and accessible on your $PATH for pic2graph to work.

OPTIONS
       -unsafe
              Run pic(1) and groff(1) in the 'unsafe' mode enabling the PIC macro sh to  execute  arbitrary  commands.
              The default is to forbid this.

       -format fmt
              Specify  an  output  format; the default is PNG (Portable Network Graphics).  Any format that convert(1)
              can emit is supported.

       -eqn delim
              Change the fencepost characters that delimit eqn(1) directives ($  and  $,  by  default).   This  option
              requires an argument, but an empty string is accepted as a directive to disable eqn(1) processing.

       Command-line switches and arguments not listed above are passed to convert(1).

FILES
       /usr/share/groff/1.18.1.4/tmac/eqnrc  The eqn(1) initialization file.

SEE ALSO
       eqn2graph(1), pic(1), eqn(1), groff(1), gs(1), convert(1).

AUTHOR
       Eric S. Raymond <esrATthyrsus.com>, based on a recipe by W. Richard Stevens.



Groff Version 1.18.1.4           17 July 2002                     PIC2GRAPH(1)