GRAP2GRAPH(1) GRAP2GRAPH(1)
NAME
grap2graph - convert a grap diagram into a cropped bitmap image
SYNOPSIS
grap2graph [ -unsafe ] [ -resolution M|MxN ] [ -format fmt ]
DESCRIPTION
Reads a grap program as input; produces an image file (by default in Portable Network Graphics for-mat) format)
mat) 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.
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.
Command-line switches and arguments not listed above are passed to convert(1).
ENVIRONMENT
GROFF_TMPDIR
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, tempo-rary temporary
rary files will be created in /tmp.
SEE ALSO
pic2graph(1), eqn2graph(1), pic(1), groff(1), gs(1), convert(1).
AUTHOR
Eric S. Raymond <esr@thyrsus.com>
Groff Version 1.19.2 27 October 2003 GRAP2GRAPH(1)
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