Name

       grap2graph - convert a grap diagram into a cropped image

Synopsis

       grap2graph [-unsafe] [-format output-format] [convert-argument ...]

       grap2graph --help

       grap2graph -v
       grap2graph --version

Description

       grap2graph  reads  a  grap(1) program from the standard input and writes an image file, by
       default in Portable Network Graphics (PNG) format, to the standard output.

       The input GRAP code should not be wrapped with the .G1 and .G2 macros that normally  guard
       it within groff(1) documents.

       Arguments  not  recognized  by  grap2graph are passed to the ImageMagick or GraphicsMagick
       program convert(1).  By specifying these, you can  give  your  image  a  border,  set  the
       image's pixel density, or perform other useful transformations.

       The output image is clipped using convert's -trim option to the smallest possible bounding
       box that contains all the black pixels.

Options

       --help displays a usage message, while -v and --version show version information; all exit
       afterward.

       -format output-format
              Write  the image in output-format, which must be understood by convert; the default
              is PNG.

       -unsafe
              Run groff in unsafe mode, enabling the PIC command sh  to  execute  arbitrary  Unix
              shell commands.  The groff default is to forbid this.

Environment

       GROFF_TMPDIR
       TMPDIR
       TMP
       TEMP   These  environment  variables  are  searched  in  the  given order to determine the
              directory where temporary files will be created.  If none are set, /tmp is used.

Authors

       grap2graph was written by Eric  S.  Raymond  ⟨esr@thyrsus.com⟩,  based  on  a  recipe  for
       pic2graph(1), by W. Richard Stevens.

See also

       pic2graph(1), eqn2graph(1), grap(1), pic(1), groff(1), convert(1)