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