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input musicdef
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% BALKEN %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
font_x_height beamht#;
def drawbeams (expr st, jj) =
save i, length, height;
numeric i, length, height;
length:= 0.5;
for i=0 upto 7:
height := length*st + beamht#;
beginchar(jj*8+i, length, height, 0);
clear;
% x2 = w; x1 = 0;
z2r = (w,h);
z1l = origin;
penpos1(beamht,90);
penpos2(beamht,90);
penstroke z1e---z2e;
endchar;
length := 2*length;
endfor;
enddef;
def drawbeamsneg (expr st, jj) =
save i, length, depth;
numeric i, length, depth;
length:= 0.5;
for i=0 upto 7:
depth := length*st - beamht#;
beginchar(jj*8+i, length, 0, depth);
clear;
z2l = (w,d);
z1r = origin;
penpos1(beamht,90);
penpos2(beamht,90);
penstroke z1e---z2e;
endchar;
length := 2*length;
endfor;
enddef;
numeric ss[];
ss[0]:=0.05;
ss[1]:=0.10;
ss[2]:=0.15;
ss[3]:=0.20;
ss[4]:=0.25;
ss[5]:=0.30;
ss[6]:=0.35;
ss[7]:=0.45;
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% Balken mit positiver Steigung %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
for j=0 upto 7 :
drawbeams(ss[j],j);
endfor;
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% Balken mit negativer Steigung %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
for j=0 upto 7 :
drawbeamsneg(-ss[j],j+8);
endfor;
end;
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