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Man Pages


Manual Reference Pages  -  GRAP2GRAPH (1)

NAME

grap2graph - convert a grap diagram into a cropped bitmap image

CONTENTS

Synopsis
Description
Options
Environment
Author

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).

AUTHOR

Eric S. Raymond <esr@thyrsus.com>
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Groff Version 1.22.2 GRAP2GRAPH (1) 7 February 2013

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