% file: psfd.pro G. Moody 10 August 1988
% Last revised: 11 August 2005
% -----------------------------------------------------------------------------
% prolog for psfd output
% Copyright (C) 1988-2005 George B. Moody
% This program is free software; you can redistribute it and/or modify it under
% the terms of the GNU General Public License as published by the Free Software
% Foundation; either version 2 of the License, or (at your option) any later
% version.
% This program is distributed in the hope that it will be useful, but WITHOUT
% ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
% FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
% more details.
% You should have received a copy of the GNU General Public License along with
% this program; if not, see <http://www.gnu.org/licenses/>.
% You may contact the author by e-mail (wfdb@physionet.org) or postal mail
% (MIT Room E25-505A, Cambridge, MA 02139 USA). For updates to this software,
% please visit PhysioNet (http://www.physionet.org/).
% _____________________________________________________________________________
% Note: lines beginning with `%' and empty lines in this file are stripped by
% `psfd' before printing. Four lines immediately below begin with spaces and
% are not stripped.
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% If this message appears in your printout, you may be using a buggy version %
% of Adobe TranScript. Try using psfd with the -u option as a workaround. %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
save 100 dict begin /psfd exch def
% printer resolution (dots per inch; reset by newpage, see below)
/dpi 300 def
% x mm: convert x (in mm) to PostScript points (assuming default scales)
/mm {72 mul 25.4 div}def
% line width in mm for signals, grid lines, marker bars
/lwmm 0.2 def
% line width in PostScript points (reset by newpage)
/lw lwmm mm def
% TM for text
/tm matrix currentmatrix def
% TM for graphics
/gm matrix currentmatrix def
% n I: use italic font, n points
/I {/Times-Italic findfont exch scalefont setfont}def
% n R: use roman font, n points
/R {/Times-Roman findfont exch scalefont setfont}def
% n S: use sans-serif font, n points
/S {/Helvetica findfont exch scalefont setfont}def
% x0 y0 x1 y1 nt grid: print a grid with the lower corner at (x0, y0),
% the upper corner at (x1, y1), and nt+1 ticks at equal intervals between x0
% and y0; the units of x0, y0, x1, and y1 are printer coordinates.
/grid { /nt exch def /y1 exch def /x1 exch def /y0 exch def /x0 exch def
% calculate tick spacing, dx, in printer units
/dx x1 x0 sub nt div def
% calculate tick lengths, dy1 = 2 mm (major ticks), dy2 = 1 mm (minor ticks)
/dy1 dpi 12.7 div def /dy2 dpi 25.4 div def
% draw axes
x0 y0 moveto x1 y0 lineto x0 y1 moveto x1 y1 lineto stroke
% draw ticks. `cvi' below is needed for NeWSprint but not Apple LaserWriter.
0 1 nt cvi { dup 5 mod 0 eq {/dy dy1 def} {/dy dy2 def} ifelse
dx mul x0 add /xx exch def newpath
xx y0 moveto xx y0 dy sub lineto
xx y1 moveto xx y1 dy add lineto stroke }for
}bind def
% pn x y prpn: print page number, pn, centered on (x, y) (in mm).
/prpn { mm exch mm exch moveto 10 R /pn exch def /str 10 string def
pn str cvs stringwidth exch -.5 mul exch rmoveto
(- ) stringwidth exch neg exch rmoveto
(- ) show
% `str show' should be sufficient, but LaserWriters print extra spaces at end
pn str cvs show
( -) show } def
% str x y prco: print copyright message, str, beginning at (x, y) (in mm).
/prco { mm exch mm exch moveto
6 R (Copyright ) show
/Symbol findfont 6 scalefont setfont (\323) show
6 R show } def
% dpi newpage: start page, resolution dpi dots per inch
/newpage {/dpi exch def tm setmatrix newpath [] 0 setdash 0 setgray
1 setlinecap /lw lwmm mm def mark } def
% ss: set scales for plotting
/ss {72 dpi div dup scale /gm matrix currentmatrix def lw setlinewidth} def
% str t: print str starting at current position (label(str))
/t {tm setmatrix show gm setmatrix}def
% str b: print str ending at current position (rlabel(str))
/b {tm setmatrix dup stringwidth exch neg exch rmoveto currentpoint 3 -1 roll
show moveto gm setmatrix}def
% x y m: set current position to (x,y) (move(x,y))
/m {newpath moveto}def
% x y N: draw line segment from current position to (x,y), set current position
% to (x,y) (cont(x,y))
/N {rlineto currentpoint stroke moveto}bind def
% str z: decode str and draw connected line segments (see cont() in psfd.c)
/z {{33 sub dup 1 and exch 2 idiv 23 sub rlineto}forall
currentpoint stroke moveto}bind def
% default ordinate for annotation plotting
/ay 0 def
% y Ay: set ay
/Ay {/ay exch def}def
% ordinates for marker bars
/ya 0 def
/yb 0 def
/yc 0 def
/yd 0 def
/ye 0 def
% ya yb yc yd sb: set ordinates for marker bars
/sb {/yd exch def /yc exch def /yb exch def /ya exch def
/ye dpi 50.8 div lw sub def}def
% ya yb Sb: set ordinates for short marker bars
/Sb {/yb exch def /ya exch def /yc yb def /yd yb def
/ye dpi 50.8 div lw sub def}def
% x mb: draw marker bars at x
/mb { dup ya newpath moveto dup yb lineto dup yc moveto yd lineto
[lw ye] 0 setdash stroke [] 0 setdash}bind def
% str x a: plot str at (x, ay), with marker bars if defined
/a {ya yb ne {dup mb}if ay m t}bind def
% x A: plot a bullet (normal QRS annotation) at (x, ay)
/A {ya yb ne {dup mb}if ay m (\267) t}bind def
/endpsfd {cleartomark showpage psfd end restore}def