gapfill – Generate LaTeX picture environments from PostScript output of drawing programs

GaPFilL ("Graph­ics as PostScript Fil­tered for LaTeX") is a method for the gen­er­a­tion of LaTeX pic­ture en­vi­ron­ments in four steps:
i) Con­struct the de­sired fig­ure with a draw­ing pro­gram; ii) Ex­port as a PostScript file; iii) Ap­ply a Perl fil­ter pro­gram to the PostScript text; iv) Trans­fer the re­sult­ing code into a LaTeX doc­u­ment.