%    Copyright (C) 1993 Aladdin Enterprises.  All rights reserved.
% 
% 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, write to the Free Software Foundation, Inc.,
% 59 Temple Place, Suite 330, Boston, MA, 02111-1307.

% $Id: markpath.ps,v 1.2.6.1.2.1 2003/04/12 14:02:39 giles Exp $
% markpath.ps
% Mark the corners of a path, drawing it slowly if desired.

/Delay where { pop } { /Delay 0 def } ifelse
/setxy0
 { currentpoint /y0 exch def /x0 exch def
 } def
/bip
 { epsx epsy idtransform /ey exch def /ex exch def
   currentpoint ex 2 div ey 2 div rlineto currentpoint 0 ey neg rlineto
   ex neg 0 rlineto 0 ey rlineto lineto lineto
   stroke
 } def
/dally
 { Delay { } repeat
   Delay 0 ne { flushpage } if
 } def
/movebip
 { /xs 2 index def /ys 1 index def
   gsave newpath mpmx transform moveto setxy0 bip grestore
 } def
/linebip
 { gsave newpath x0 y0 moveto mpmx transform lineto setxy0 bip dally grestore
 } def
/curvebip
 { gsave newpath x0 y0 moveto 5 index 5 index mpmx transform lineto bip
   2 copy mpmx transform moveto 3 index 3 index mpmx transform lineto bip
   x0 y0 moveto
   3 { mpmx transform 6 2 roll } repeat
   curveto setxy0 bip dally grestore
 } def
/closebip
 { xs ys linebip
 } def

/markpath		% <matrix> markpath -
 { /mpmx exch def 
   gsave initgraphics 9 dup dtransform grestore
     /epsy exch def   /epsx exch def
   gsave 0 setlinewidth
    { movebip } { linebip } { curvebip } { closebip } pathforall
   grestore
 } def