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%
% This file is part of MusiXTeX
%
% MusiXTeX 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, or (at your option)
% any later version.
%
% MusiXTeX 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 MusiXTeX; see the file COPYING. If not, write to
% the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
% Boston, MA 02111-1307, USA.
%
% WpH May, 19, 1997 modified to be dashed.
%
min_bow:= internote;
max_bow:=3internote;
slope:=17.5/100;
gap:=thick; %Wph length of space between dashes.
dash:=1.6thick; %Wph Length of each rising or falling dash.
pointendl:=dash; %WpH length of first and last dash.
centerdashl:=-dash; %WpH length of center dash.
if unknown makedotted: makedotted:=0; fi % WpH
path outerpath, innerpath; %Wph declaration of path variables.
code=-1;
for iht=1 upto 8:
for iwd=0 upto 15:
beginchar(incr code, 0, 0, 0);
mw#:=(minwidth+iwd*delwidth)*pt#;
define_pixels(mw);
x1 = y1= 0; x3= mw; y3= 2y2'= iht*internote; x2'= .5x3;
mheight:=y3;
z2-z2'= whatever*dir(angle(z3-z1)+90);
my_bow:=min(max_bow, slope*mw);
my_bow:=max(my_bow, min_bow);
z1'=(z1-(0,my_bow)) rotated angle(z3-z1);
(z1'-z2)=whatever*(z1-z2');
penpos1(.15thick,(angle(z3-z1)+90));
penpos2(thick,(angle(z3-z1)+90));
penpos3(.15thick,(angle(z3-z1)+90));
penstroke (flex(z1e,z2e,z3e));
%{{{
currentpen:= pencircle;
draw (flex(z1,z2,z3));% draw z1--z3; draw z2'--z2--z1'--z1;
%}}}
%
% WpH start of added block to make gaps.
if makedotted<>1:
% variable makedotted has not been given a value.
% Dotted lines will not be made.
else:
cullit;
outerpath:= flex(z1r,z2r,z3r);
innerpath:= flex(z1l,z2l,z3l);
cl:=abs(z2-z1); %apporximate curve length/2
tcount:=(cl-pointendl-0.5centerdashl)/(gap+dash); % number of gaps on rise or fall.
tcount:=floor(tcount + .5); %round to nearest int number
tinc:=((cl-pointendl-.5centerdashl)/tcount);
pickup pencircle scaled gap;
for k=0 upto tcount-1:
tt:=((pointendl + .5gap) + k*tinc)/(cl);
undraw (point tt of outerpath)..(point tt of innerpath);
undraw (point (2-tt) of outerpath)..(point (2-tt) of innerpath);
%
% I expected the undraw statements to be the following. If the
% other code fails on your version of metafont, try this:
%
% undraw (point .5tt of outerpath)..(point .5tt of innerpath);
% undraw (point (1-.5tt) of outerpath)..(point (1-.5tt) of innerpath);
%
endfor;
cullit;
fi
% Wph End of added block to make gaps.
%
currentpicture:=currentpicture t;
p:=currentpicture;
endchar;
beginchar(code+128, 0, 0, 0);
currentpicture:=p T;
endchar;
endfor
endfor
end
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