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BEAMNGEN.MF
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1991-11-07
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% Length has been changed to longueur for BCPL_string
% Nicolas Brouard 25/10/91
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% BALKEN %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
font_x_height beamht#;
def drawbeams (expr st, jj, nn) =
save i, j, longueur, height;
numeric i, j, longueur, height;
longueur:= 60.0/32;
for i=0 upto 5:
height := longueur*st ;
beginchar(jj*6+i, longueur, height, 0);
clear;
z2 = (w,h);
z1 = origin;
penpos1(beamht,90);
penpos2(beamht,90);
for j=0 upto nn-1:
penstroke (z1e---z2e) shifted (0,beamstep*j);
endfor;
endchar;
longueur := 2*longueur;
endfor;
enddef;
def drawbeamsneg (expr st, jj, nn) =
save i, longueur, depth;
numeric i, longueur, depth;
longueur:= 60.0/32;
for i=0 upto 5:
depth := longueur*st;
beginchar(64+jj*6+i, longueur, 0, depth);
clear;
z2 = (w,d);
z1 = origin;
penpos1(beamht,90);
penpos2(beamht,90);
for j=0 upto nn-1:
penstroke (z1e---z2e) shifted (0,beamstep*j);
endfor;
endchar;
longueur := 2*longueur;
endfor;
enddef;
numeric beamstep;
numeric ss[];
beamstep:=0.75nhh;
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]:=0.4;
ss[8]:=0.45;
ss[9]:=0.50;
ss[10]:=0.55;
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% Balken mit positiver Steigung %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
for j=0 upto 9 :
drawbeams(ss[j],j,beammult);
endfor;
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% Balken mit negativer Steigung %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
for j=0 upto 9 :
drawbeamsneg(-ss[j],j,beammult);
endfor;
end;