xfig utility mentioned several times in this documentation is
a freely distributable interactive drawing editor for the X Window
System. It can display and edit the output of any application that
uses the Fig Plotter support contained in GNU
graph -T fig,
plot -T fig,
tek2plot -T fig, and
plotfont -T fig.
The current version is available at
ftp://ftp.x.org/contrib/applications/drawing_tools/. It can
import additional graphics in GIF, X11 bitmap, and Postscript formats.
Accompanying the editor is a package called
xfig graphics to be exported in many formats. GIF, X11
bitmap, LaTeX, and Postscript formats are supported.
There is a Web page on Fig format, which discusses application software that can interoperate with