TeXdraw is a set of macro definitions for TeX, which allow the user to produce PostScript drawings from within TeX and LaTeX. TeXdraw has been designed to be extensible. Drawing ‘segments’ are relocatable, self-contained units. Using a combination of TeX’s grouping mechanism and the gsave/grestore mechanism in PostScript, drawing segments allow for local changes to the scaling and line parameters. Using TeX’s macro definition capability, new drawing commands can be constructed from drawing segments.