grodvi
The postprocessor grodvi
accepts the following command-line
options:
Do not use tpic specials to implement drawing commands.
Put the directory dir/devname in front of the search path for the font and device description files, given the target device name, usually dvi.
Use landscape orientation.
Set the page dimensions. Overrides the commands papersize, paperlength, and paperwidth in the DESC file. See groff_font(5) manual page for details.
Print the version number.
Set the line thickness to n/1000em. Overrides the default value n = 40.