PIC2GRAPH(1)            FreeBSD General Commands Manual           PIC2GRAPH(1)

NAME
       pic2graph - convert a PIC diagram into a cropped image

SYNOPSIS
       pic2graph [-unsafe] [-format output-format] [-eqn delimiters]
                 [convert-arguments]

       pic2graph --help

       pic2graph -v
       pic2graph --version

DESCRIPTION
       pic2graph reads a pic(1) program from the standard input and writes an
       image file, by default in Portable Network Graphics (PNG) format, to
       the standard output.  It furthermore translates eqn(1) constructs, so
       it can be used for generating images of mathematical formulae.

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

       Arguments not recognized by pic2graph are passed to the ImageMagick or
       GraphicsMagick program convert(1).  By specifying these, you can give
       your image a border, set the image's pixel density, or perform other
       useful transformations.

       The output image is clipped using convert's -trim option to the
       smallest possible bounding box that contains all the black pixels.

OPTIONS
       -eqn delimiters
              Use delimiters as the opening and closing characters that
              delimit eqn directives; the default is "$$".  The option
              argument delimiters should be a two-character string, but an
              empty string ("") is accepted as a directive to disable eqn
              processing.

       -format output-format
              Write the image in output-format, which must be understood by
              convert; the default is PNG.

       --help Display a usage message and exit.

       -unsafe
              Run groff in unsafe mode, enabling the PIC command sh to execute
              arbitrary Unix shell commands.  The groff default is to forbid
              this.

       -v
       --version
              Display version information and exit.

ENVIRONMENT
       GROFF_TMPDIR
       TMPDIR
       TMP
       TEMP   These environment variables are searched in the given order to
              determine the directory where temporary files will be created.
              If none are set, /tmp is used.

AUTHORS
       pic2graph was written by Eric S. Raymond <esr@thyrsus.com>, based on a
       recipe by W. Richard Stevens.

SEE ALSO
       W. Richard Stevens, Turning PIC into HTML <http://www.kohala.com/start/
       troff/pic2html.html>

       eqn2graph(1), grap2graph(1), pic(1), eqn(1), groff(1), convert(1)

groff 1.22.4                   18 November 2018                   PIC2GRAPH(1)