grap

A charting preprocessor for the groff (GNU Troff) document formatting system. See also pic and groff. More information: https://manned.org/grap.

• Process a grap file and save the output file for future processing with pic and groff:
  grap {{path/to/input.grap}} > {{path/to/output.pic}}
• Typeset a grap file to PDF using the [me] macro package, saving the output to a file:
  grap {{path/to/input.grap}} | pic -T {{pdf}} | groff -{{me}} -T {{pdf}} > {{path/to/output.pdf}}