Reads a grap program as input; produces an image file (by default in
Portable Network Graphics format) suitable for the Web as output.
For a description of the grap language, see grap(1).
Your graph specification should not be wrapped with the .G1 and .G2
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 grap(1), pic(1), groff(1), and the ImageMagick
convert(1) program. These programs must be installed on your system
and accessible on your $PATH for grap2graph to work.
Run pic(1) and groff(1) in the `unsafe' mode enabling the PIC
macro sh to execute arbitrary commands. The default is to
Specify an output format; the default is PNG (Portable Network
Graphics). Any format that convert(1) can emit is supported.
Command-line switches and arguments not listed above are passed to
The directory in which temporary files will be created. If
this is not set grap2graph searches the environment variables
TMPDIR, TMP, and TEMP (in that order). Otherwise, temporary
files will be created in /tmp.
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 tarball groff-1.22.3.tar.gz fetched from
⟨ftp://ftp.gnu.org/gnu/groff/⟩ on 2016-08-07. If you discover any
rendering problems in this HTML version of the page, or you believe
there is a better or more up-to-date source for the page, or you have
corrections or improvements to the information in this COLOPHON
(which is not part of the original manual page), send a mail to
Groff Version 1.22.3 4 November 2014 GRAP2GRAPH(1)