u#:=10pt#;
define_pixels(u);

% variables — defines the general parameters of the letter
w = 1u;				% width
h = u*1.2 = xh*0.8;	% height
b = 1/3;			% hauteur de barre (1=top, 0=bottom)
var = 1+2b;
slant = .0;			% slanted (-1 > backward > 0 > italic > 1)
pen_size = .25u;
pen_rotation = 45;

serif = 1;			% 1 or 0;
serif_ext = .01u; 	% épaisseur des pts extérieurs
serif_l = .3u; 		% longeur du sérif
serif_h = .1u; 	% hauteur du point à l'intérieur du fût (attention sensible)

%--------------------------------------------------- A
beginchar("A",1.6u#,2u#,0u#);"Letter A"; 

	y1 = y2 = y3-h = 0;
	x1 = x2-(w-pen_size/2) = pen_size/2;
	x3 - u*slant = (x2+x1)/2;
	y4 = y5 = y3*b;
	z4=whatever[z1,z3]; 
	z5=whatever[z2,z3];
	% fûts
	penpos1(pen_size/2,0); 	penpos2(pen_size,0);
	penpos3(pen_size,pen_rotation);
	penstroke z1e..z3e;	penstroke z2e..z3e;
	
	if (serif = 1):
		%serifs intérieurs
		y6 = y7 = serif_h;
		z6=whatever[z1,z3]; 
		z7=whatever[z2,z3];
		%serifs extérieurs (bot)
		y1+serif_ext/2 = y8 = y9;
		x1 = x8+serif_l = x9-serif_l;
		y2+serif_ext/2 = y10 = y11;
		x2 = x10+serif_l = x11-serif_l;

		penpos6(serif_h*2,90);
%		penpos6(serif_h*2,(z1 dotprod z3));
		penpos7(serif_h*1.99,90);
		penpos8(serif_ext,90);	penpos9(serif_ext,90);
		penpos10(serif_ext,90);	penpos11(serif_ext,90);

		%empattements
		penstroke z8e{right}..z6e & z6e..{right}z9e;
		penstroke z10e{right}..z7e & z7e..{right}z11e;
	fi
	pickup pencircle xscaled .5pen_size rotated pen_rotation; 
	draw z4{dir 20}..{dir 20}z5;
	labels(range 1 thru 11);
endchar;

%--------------------------------------------------- B
beginchar("B",1.6u#,2u#,0u#);"Letter B";
	x1 = x3 - u*slant = pen_size;
	x3 = (x4-w/3);
	x4 = x5/(1+b) + (u*slant)*.2;
	
	y1 = y3-h = 0;
	y2 = y3*2b;
	z2 = whatever[z1,z3];
	y4 = (y3+y2)/2;
	y5 = (y1+y2)/(2*2b);
	
	% empattements	
	if (serif=1):
		x6 = x1-serif_l;
		x7 = x3-serif_l;
		z8 = whatever[z1,z3];
		z9 = whatever[z1,z3];
		y6-serif_ext/2 = y1 = y8-serif_h;
		y7+serif_ext/2 = y3 = y9+serif_h;

		penpos6(serif_ext,90);	penpos7(serif_ext,90);
		penpos8(2serif_h,90);	penpos9(2serif_h,90);
		penstroke z7e{right}..z9e;
		penstroke z6e{right}..z8e;
	fi	
	%pickup pencircle xscaled pen_size rotated pen_rotation; 
	penpos1(pen_size,0);	penpos3(pen_size,0);
	penpos2(pen_size,pen_rotation);
	penpos4(pen_size,.5pen_rotation);	penpos5(pen_size,pen_rotation);
	penstroke z1e..z3e;
	penstroke z3e{right}..z4e..{left}z2r;
	penstroke z2e{right}..z5e..{left}z1e;

	%draw z2{right}..z5..{left}z1;
	labels(range 1 thru 9);
endchar;

%--------------------------------------------------- C
beginchar("C",1.6u#,2u#,0u#);"Letter C";
	x2 = pen_size/2;
	x3 = x1 - u*slant/2 = w-.3u;
	y3 = y1-h+.5u = y2-h*b = pen_size/3;

	pickup pencircle xscaled pen_size rotated pen_rotation; 
	draw z1{up}..{down}z2..z3;
endchar;

%--------------------------------------------------- D
beginchar("D",1.6u#,2u#,0u#);"Letter D";
	x1 = x2 - u*slant = x3-(w-.2u) - u*slant = pen_size/2;
	x11 = x1+.1u;	x10 = x2+.5u;
	y1 = y2-h = y3-h/var = 0;
	y10 = y2;
	y11 = y1+.02u;
	
	if (serif=1):
		x6 = x1-serif_l;
		x7 = x2-serif_l;
		z8 = whatever[z1,z2];
		z9 = whatever[z1,z2];
		y6-serif_ext/2 = y1 = y8-serif_h;
		y7+serif_ext/2 = y2 = y9+serif_h;

		penpos6(serif_ext,90);	penpos7(serif_ext,90);
		penpos8(2serif_h,90);	penpos9(2serif_h,90);
		penstroke z7e{right}..z9e;
		penstroke z6e{right}..z8e;
	fi	
	
	penpos1(pen_size,0);	penpos2(pen_size,0);
	penpos10(.5pen_size,pen_rotation);
	penpos11(.5pen_size,-pen_rotation);
	penpos3(pen_size,pen_rotation);
	
	penstroke z1e..z2e;
	penstroke z9e..z10e{right}..{down}z3e;
	penstroke z11e..{up}z3e;

	
	labels(range 1 thru 11);
endchar;

%--------------------------------------------------- E
beginchar("E",1.6u#,2u#,0u#);"Letter E";
	y1 = y6 = 0; % = pen_size/2
	y2 = y5 = h/var;
	y3 = y4 = h;

	x1 = x3 - u*slant = pen_size/2;
	z2 = whatever[z1,z3]; 
	x4 - u*slant  = x6 = x5*var - u*slant  = w*2b;
	
	pickup pencircle xscaled pen_size rotated pen_rotation; 
	draw z6--z1--z3--z4;
	draw z2--z5;
endchar;

%--------------------------------------------------- F
beginchar("F",1.6u#,2u#,0u#);"Letter F";
	y1 = 0;
	y2 = y5 = h/var;
	y3 = y4 = h;

	x1 = x3 - u*slant = pen_size/2;
	z2 = whatever[z1,z3]; 
	x4 - u*slant  = x5*var - u*slant  = w*2b;
	
	pickup pencircle xscaled pen_size rotated pen_rotation; 
	draw z1--z3--z4;
	draw z2--z5;
	labels(range 1 thru 5);
endchar;


%--------------------------------------------------- G
beginchar("G",1.6u#,2u#,0u#);"Letter G";
	y2 = y4-h = y3-h/2 = 0;
	y3 = y8 = y6 = y7;
	y3 = y1*var = y5/var;
	
	x5 - u*slant/2 = x1 = w*(2.5b);
	z6 = whatever[z1,z5];
	x3 = x7-w = 0;
	x2 = x4 - u*slant/2 = x8 = w/2;
	
	pickup pencircle xscaled pen_size rotated pen_rotation; 
	draw z5{up}..z4..z3..z2..{up}z1--z6;
	draw z8--z7;
	
	labels(range 1 thru 8);
endchar;

%--------------------------------------------------- H
beginchar("H",1.6u#,2u#,0u#);"Letter H";
	x1 = x3-u*slant = 0;
	x4 = x6-u*slant = w/var;
	
	y1 = y4 = 0;
	y3 = y6 = h;
	y2 = y5 = h/var;
	
	z2 = whatever[z1,z3];
	z5 = whatever[z4,z6];
	
	pickup pencircle xscaled pen_size rotated pen_rotation; 
	draw z1--z3; 	draw z4--z6; 	draw z2--z5; 
	labels(range 1 thru 6);
endchar;


%--------------------------------------------------- I
%beginchar("_",1.6u#,2u#,0u#);"Letter _";
%	pickup pencircle xscaled pen_size rotated pen_rotation; 
%	labels(range 1 thru _);
%endchar;


%--------------------------------------------------- J
%beginchar("_",1.6u#,2u#,0u#);"Letter _";
%\tpickup pencircle xscaled pen_size rotated pen_rotation; 
%	labels(range 1 thru _);
%endchar;


%--------------------------------------------------- K
%beginchar("_",1.6u#,2u#,0u#);"Letter _";
%\tpickup pencircle xscaled pen_size rotated pen_rotation; 
%	labels(range 1 thru _);
%endchar;


%--------------------------------------------------- L
%beginchar("_",1.6u#,2u#,0u#);"Letter _";
%\tpickup pencircle xscaled pen_size rotated pen_rotation; 
%	labels(range 1 thru _);
%endchar;


%--------------------------------------------------- M
%beginchar("_",1.6u#,2u#,0u#);"Letter _";
%\tpickup pencircle xscaled pen_size rotated pen_rotation; 
%	labels(range 1 thru _);
%endchar;


%--------------------------------------------------- N
%beginchar("_",1.6u#,2u#,0u#);"Letter _";
%\tpickup pencircle xscaled pen_size rotated pen_rotation; 
%	labels(range 1 thru _);
%endchar;

%--------------------------------------------------- O
%beginchar("_",1.6u#,2u#,0u#);"Letter _";
%\tpickup pencircle xscaled pen_size rotated pen_rotation; 
%	labels(range 1 thru _);
%endchar;


%--------------------------------------------------- P
%beginchar("_",1.6u#,2u#,0u#);"Letter _";
%\tpickup pencircle xscaled pen_size rotated pen_rotation; 
%	labels(range 1 thru _);
%endchar;


%--------------------------------------------------- Q
%beginchar("_",1.6u#,2u#,0u#);"Letter _";
%\tpickup pencircle xscaled pen_size rotated pen_rotation; 
%	labels(range 1 thru _);
%endchar;


%--------------------------------------------------- R
%beginchar("_",1.6u#,2u#,0u#);"Letter _";
%\tpickup pencircle xscaled pen_size rotated pen_rotation; 
%	labels(range 1 thru _);
%endchar;


%--------------------------------------------------- S
%beginchar("_",1.6u#,2u#,0u#);"Letter _";
%\tpickup pencircle xscaled pen_size rotated pen_rotation; 
%	labels(range 1 thru _);
%endchar;


%--------------------------------------------------- T
%beginchar("_",1.6u#,2u#,0u#);"Letter _";
%\tpickup pencircle xscaled pen_size rotated pen_rotation; 
%	labels(range 1 thru _);
%endchar;


%--------------------------------------------------- U
%beginchar("_",1.6u#,2u#,0u#);"Letter _";
%\tpickup pencircle xscaled pen_size rotated pen_rotation; 
%	labels(range 1 thru _);
%endchar;


%--------------------------------------------------- V
%beginchar("_",1.6u#,2u#,0u#);"Letter _";
%\tpickup pencircle xscaled pen_size rotated pen_rotation; 
%	labels(range 1 thru _);
%endchar;


%--------------------------------------------------- W
%beginchar("_",1.6u#,2u#,0u#);"Letter _";
%\tpickup pencircle xscaled pen_size rotated pen_rotation; 
%	labels(range 1 thru _);
%endchar;


%--------------------------------------------------- X
%beginchar("_",1.6u#,2u#,0u#);"Letter _";
%\tpickup pencircle xscaled pen_size rotated pen_rotation; 
%	labels(range 1 thru _);
%endchar;


%--------------------------------------------------- Y
%beginchar("_",1.6u#,2u#,0u#);"Letter _";
%\tpickup pencircle xscaled pen_size rotated pen_rotation; 
%	labels(range 1 thru _);
%endchar;


%--------------------------------------------------- Z
%beginchar("_",1.6u#,2u#,0u#);"Letter _";
%\tpickup pencircle xscaled pen_size rotated pen_rotation; 
%	labels(range 1 thru _);
%endchar;



%--------------------------------------------------- 
%beginchar("_",1.6u#,2u#,0u#);"Letter _";
%pickup pencircle xscaled pen_size rotated pen_rotation; 
%	labels(range 1 thru _);
%endchar;



beginchar("a",1.6u#,2u#,0u#);"Letter a";
	x1 - u*slant/4 = x3 = 0;
	x2 - u*slant/4 = x7 = w*2b;
	x4*1.5 = x6 = (x1+x2)/2;
	x5 = x2+u/3;
	
	y4 = y5 = y6-h*(1-b) = 0;
	y1 = y2 = y6/1.5;
	y3 = (y1+y4)/2;
	y7 = (y3+y4)/2;
	
	pickup pencircle xscaled pen_size yscaled .3pen_size rotated pen_rotation; 
	draw z1..z6..{down}z2..z7{down}..{right}z5;
	draw z2{down}..{down}z3..{right}z4..{up}z7;
	
	penlabels(1,2,3,4,5,6,7);
endchar;

%--------------------------------------- a; version fraktur
%beginchar("a1",1.6u#,2u#,0u#);"Letter a fraktur";
%	x1 = x3 = 0;
%	x2 = x7 = w*2b;
%	x4 = x6 = (x1+x2)/2;
%	x5 = x2*1.2;
%	
%	y4 = y5 = y6-xh = 0;
%	y1 = y2 = xh-b;
%	y3 = (y1+y4)/2;
%	y7 = (y3+y4)/2;
%	
%	pickup pencircle xscaled pen_size rotated pen_rotation; 
%	draw z1{up}..z6..{up}z2--z7..{left}z5;
%	draw z2{down}..{down}z3..{left}z4..{down}z7;
%	draw z7{down}..{left}z5;
%	
%	labels(range 1 thru 7);	
%endchar;


end