extraction not imho. but the usual tools are pic (for diagrams) and grap (for graphs), as linked from here: http://n-t-roff.github.io/heirloom/doctools.html ht

extraction not imho. but the usual tools are pic (for diagrams) and grap (for graphs), as linked from here: http://n-t-roff.github.io/heirloom/doctools.html http://n-t-roff.github.io/heirloom/doctools.html this is the manual https://pikchr.org/home/uv/pic.pdf https://pikchr.org/home/uv/pic.pdf I've also used postscript for extreme usages, the doctools can also include ps verbatim.