pic2graph(1) — Linux manual page
pic2graph(1) General Commands Manual pic2graph(1)
Name
pic2graph - convert a pic diagram into a cropped image
Synopsis
pic2graph [-unsafe] [-format output-format] [-eqn delimiters]
[convert-argument ...]
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/.PF/.PY 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
--help displays a usage message, while -v and --version show
version information; all exit afterward.
-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.
-unsafe
Run groff in unsafe mode, enabling the PIC command sh to
execute arbitrary Unix shell commands. The groff default
is to forbid this.
Environment
GROFF_TMPDIR
TMPDIR
TMP
TEMP These environment variables are searched in the order
shown 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)
COLOPHON
This page is part of the groff (GNU troff) project. Information
about the project can be found at
⟨http://www.gnu.org/software/groff/⟩. If you have a bug report
for this manual page, see ⟨http://www.gnu.org/software/groff/⟩.
This page was obtained from the project's upstream Git repository
⟨https://git.savannah.gnu.org/git/groff.git⟩ on 2024-06-14. (At
that time, the date of the most recent commit that was found in
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