GRAP2GRAPH
Section: User Commands (1)
Updated: 4 November 2014
Page Index
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 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.
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, temporary files will be created in
/tmp.
SEE ALSO
pic2graph(1),
eqn2graph(1),
pic(1),
groff(1),
gs(1),
convert(1).
COPYING
This documentation is released to the public domain.
AUTHORS
This document was written by
Eric S. Raymond