Section: User Commands (1)
Updated: 4 November 2014
grap2graph - convert a grap diagram into a cropped bitmap image
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
Your graph specification should not be wrapped with the .G1 and
.G2 macros that normally guard it within
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
you can give it a border, set the background transparent, set the
image's pixel density, or perform other useful transformations.
This program uses
and the ImageMagick
These programs must be installed on your system and accessible on your
$PATH for grap2graph to work.
in the `unsafe' mode enabling the PIC macro
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
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
searches the environment variables
(in that order).
Otherwise, temporary files will be created in
This documentation is released to the public domain.
This document was written by
Eric S. Raymond