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grap2graph - convert a grap diagram into a cropped bitmap image


grap2graph [ -unsafe ] [ -resolution M|MxN ] [ -format fmt ]


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 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).


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.

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