% LAMS4.MF      VERSION 1.0
% COPYRIGHT (C) 1989 BY THE TEXPLORATORS CORPORATION
% ALL RIGHTS RESERVED

if unknown cmbase: input cmbase fi
font_identifier:="LAMS"; font_size 10pt#;

u#:=20/36pt#;      % unit width
width_adj#:=0pt#;    % width adjustment for certain characters
serif_fit#:=0pt#;    % extra sidebar near lowercase serifs
cap_serif_fit#:=5/36pt#;  % extra sidebar near uppercase serifs
letter_fit#:=0pt#;    % extra space added to all sidebars

body_height#:=270/36pt#;  % height of tallest characters
asc_height#:=360/36pt#;    % height of lowercase ascenders
cap_height#:=246/36pt#;    % height of caps
fig_height#:=232/36pt#;    % height of numerals
x_height#:=155/36pt#;    % height of lowercase without ascenders
math_axis#:=90/36pt#;    % axis of symmetry for math symbols
bar_height#:=87/36pt#;    % height of crossbar in lowercase e
comma_depth#:=70/36pt#;    % depth of comma below baseline
desc_depth#:=0/36pt#;    % depth of lowercase descenders

crisp#:=8/36pt#;    % diameter of serif corners
tiny#:=8/36pt#;      % diameter of rounded corners
fine#:=7/36pt#;      % diameter of sharply rounded corners
thin_join#:=7/36pt#;    % width of extrafine details
hair#:=9/36pt#;      % lowercase hairline breadth
stem#:=24/36pt#;    % lowercase stem breadth
curve#:=29/36pt#;    % lowercase curve breadth
ess#:=27/36pt#;      % breadth in middle of lowercase s
flare#:=32/36pt#;    % diameter of bulbs or breadth of terminals
dot_size#:=38/36pt#;    % diameter of dots
cap_hair#:=11/36pt#;    % uppercase hairline breadth
cap_stem#:=30/36pt#;    % uppercase stem breadth
cap_curve#:=35/36pt#;    % uppercase curve breadth
cap_ess#:=33/36pt#;    % breadth in middle of uppercase s
rule_thickness#:=.4pt#;    % thickness of lines in math symbols

dish#:=1/36pt#;      % amount erased at top or bottom of serifs
bracket#:=20/36pt#;    % vertical distance from serif base to tangent
jut#:=30/36pt#;      % protrusion of lowercase serifs
cap_jut#:=37/36pt#;    % protrusion of uppercase serifs
beak_jut#:=10/36pt#;    % horizontal protrusion of beak serifs
beak#:=70/36pt#;    % vertical protrusion of beak serifs
vair#:=8/36pt#;      % vertical diameter of hairlines
notch_cut#:=10pt#;    % maximum breadth above or below notches
bar#:=11/36pt#;      % lowercase bar thickness
slab#:=11/36pt#;    % serif and arm thickness
cap_bar#:=11/36pt#;    % uppercase bar thickness
cap_band#:=11/36pt#;    % uppercase thickness above/below lobes
cap_notch_cut#:=10pt#;    % max breadth above/below uppercase notches
serif_drop#:=4/36pt#;    % vertical drop of sloped serifs
stem_corr#:=1/36pt#;    % for small refinements of stem breadth
vair_corr#:=1/36pt#;    % for small refinements of hairline height
apex_corr#:=0pt#;    % extra width at diagonal junctions

o#:=8/36pt#;      % amount of overshoot for curves
apex_o#:=8/36pt#;    % amount of overshoot for diagonal junctions

slant:=0;      % tilt ratio $(\Delta x/\Delta y)$
fudge:=1;      % factor applied to weights of heavy characters
math_spread:=0;      % extra openness of math symbols
superness:=1/sqrt2;    % parameter for superellipses
superpull:=1/6;      % extra openness inside bowls
beak_darkness:=11/30;    % fraction of triangle inside beak serifs
ligs:=2;      % level of ligatures to be included

square_dots:=false;    % should dots be square?
hefty:=false;      % should we try hard not to be overweight?
serifs:=true;      % should serifs and bulbs be attached?
monospace:=false;    % should all characters have the same width?
variant_g:=true;    % should an italic-style g be used?
low_asterisk:=false;    % should the asterisk be centered at the axis?
math_fitting:=true;    % should math-mode spacing be used?

mode_setup; font_setup;
autorounding:=0;

font_slant slant; font_x_height 0;
font_quad 18u# if not monospace:+4letter_fit# fi;

slant:=mono_charic#:=0;  % the remaining characters will not be slanted
currenttransform:=identity yscaled aspect_ratio scaled granularity;


def RevShaft (expr ChCode,ChWidthFrac,ChDepthFrac)=

beginchar(ChCode,ChWidthFrac*18u#,0,ChDepthFrac*18u#);
adjust_fit(0,0); pickup crisp.nib;
x1= 0; x0=(w);
y1=h; y0=-d;
pickup pencircle scaled rule_thickness;
draw z1--z0;
penlabels(1,2); endchar;
enddef;


def RevDashedShaft (expr ChCode, ChWidthFrac, ChDepthFrac)=
beginchar(ChCode,ChWidthFrac*18u#,0,ChDepthFrac*18u#);
adjust_fit(0,0); pickup crisp.nib;
x1= 0; x0=(w);
y1=h; y0=-d;
numeric theta,delta; theta=angle(z0-z1); delta=3u++.24asc_height;
if abs(theta-45)<2.5: theta:=45; y1:=y0+x1-x0; fi % near-45$^\circ$ angle
pos1(rule_thickness,90+theta); pos2(1.5rule_thickness,90+theta);
x2= w;
y2=-d;
pickup pencircle scaled rule_thickness;
draw z1--1/6[z1,z2];
draw 2/6[z1,z2]--4/6[z1,z2];
draw 5/6[z1,z2]--z2;
penlabels(1,2); endchar;
enddef;


def RevUpperHead (expr ChCode, ChWidthFrac, ChDepthFrac)=

beginchar(ChCode,ChWidthFrac*18u#,0, ChDepthFrac*18u#);
adjust_fit(0,0); pickup crisp.nib;
x1=0; x0=w;
y1=h; y0=-d;
numeric theta; theta=angle(z0-z1);
numeric delta; delta=((3u++.24asc_height)+eps-rule_thickness-.5crisp.breadth);
pos1(rule_thickness,90+theta);
pos2(1.5rule_thickness,theta);
pos3(bar,theta); pos4(bar,theta);
z4=z0+ dir -(90+(45-theta)) scaled delta;
z3=z0+ dir -(180+(45-theta)) scaled delta;
z2l=z0;
z9=.381966[.5[z3,z4],z0];
pickup crisp.nib;
filldraw z2r..{z3-z9}z3r---{z9-z3}z3l..z2l--cycle;
filldraw z2r..{z4-z9}z4r---{z9-z4}z4l..z2l--cycle;
endchar;
enddef;


def RevLowerHead (expr ChCode, ChWidthFrac, ChDepthFrac)=

beginchar(ChCode,ChWidthFrac*18u#,0,ChDepthFrac*18u#);
adjust_fit(0,0); pickup crisp.nib;
x1=w ; x0= 0;
y1=-d;  y0=h;
numeric theta; theta=angle(z1-z0);
numeric delta; delta=((3u++.24asc_height)+eps-rule_thickness-.5crisp.breadth);
pos1(rule_thickness,-90+theta);
pos2(1.5rule_thickness,theta);
pos3(bar,theta); pos4(bar,theta);
z4=z0+ dir (90-(45-theta)) scaled delta;
z3=z0+ dir -(45-theta) scaled delta;
pos5(bar,90-(45-theta)); z5l=z0; pos6(bar,-(45-theta)); z6l=z0;
z2r=z0;
z9=.381966[.5[z3,z4],z0];
pickup crisp.nib;
filldraw z2r..{z3-z9}z3r---{z9-z3}z3l..z2l--cycle;
filldraw z2r..{z4-z9}z4r---{z9-z4}z4l..z2l--cycle;
penlabels(0,1,2,3,4,5,6,9); endchar;
enddef;

def RevUpperTopBarb (expr ChCode, ChWidthFrac, ChDepthFrac)=
beginchar(ChCode,ChWidthFrac*18u#,0,ChDepthFrac*18u#);
adjust_fit(0,0); pickup crisp.nib;
x1=0; x0=w;
y1=h; y0=-d;
numeric theta; theta=angle(z0-z1);
pos1(rule_thickness,90+theta);
pos0(rule_thickness,90+theta);
pos2(1.5rule_thickness,theta);
pos3(bar,theta); pos4(bar,theta);
z4=z0+ dir -(90+(45-theta)) scaled ((3u++.24asc_height)+eps-rule_thickness-.5crisp.breadth);
z3=z0+ dir -(180+(45-theta)) scaled ((3u++.24asc_height)+eps-rule_thickness-.5crisp.breadth);
z2l=z0;
z9=.381966[.5[z3,z4],z0];
pickup crisp.nib;
filldraw z2r..{z3-z9}z3r---{z9-z3}z3l..z2l--cycle;
filldraw z2r{dir (270+theta)}..{z1-z0}z0l--z2l--cycle;
endchar;
enddef;


def RevUpperBotBarb (expr ChCode,ChWidthFrac,ChDepthFrac)=
beginchar(ChCode,ChWidthFrac*18u#,0,ChDepthFrac*18u#);
adjust_fit(0,0); pickup crisp.nib;
x1=0; x0=w;
y1=h; y0=-d;
numeric theta; theta=angle(z0-z1);
pos1(rule_thickness,90+theta);
pos0(rule_thickness,90+theta);
pos2(1.5rule_thickness,theta);
pos3(bar,theta); pos4(bar,theta);
z4=z0+ dir -(90+(45-theta)) scaled ((3u++.24asc_height)+eps-rule_thickness-.5crisp.breadth);
z3=z0+ dir -(180+(45-theta)) scaled ((3u++.24asc_height)+eps-rule_thickness-.5crisp.breadth);
z2l=z0;
z9=.381966[.5[z3,z4],z0];
pickup crisp.nib;
filldraw z2r..{z4-z9}z4r---{z9-z4}z4l..z2l--cycle;
filldraw z2r{dir (90+theta)}..{z1-z0}z0r--z2l--cycle;

endchar;

enddef;


def RevLowerTopBarb (expr ChCode, ChWidthFrac, ChDepthFrac)=
beginchar(ChCode,ChWidthFrac*18u#,0,ChDepthFrac*18u#);
adjust_fit(0,0); pickup crisp.nib;
x1=w ; x0=0;
y1=-d;  y0=h;
numeric theta; theta=angle(z1-z0);
pos1(rule_thickness,90+theta);
pos0(rule_thickness,90+theta);
pos2(1.5rule_thickness,theta);
pos3(bar,theta); pos4(bar,theta);
z4=z0+ dir (90-(45-theta)) scaled ((3u++.24asc_height)+eps-rule_thickness-.5crisp.breadth);
z3=z0+ dir -(45-theta) scaled ((3u++.24asc_height)+eps-rule_thickness-.5crisp.breadth);
pos5(bar,90-(45-theta)); z5l=z0; pos6(bar,-(45-theta)); z6l=z0;
z2r=z0;
z9=.381966[.5[z3,z4],z0];
pickup crisp.nib;
filldraw z2r..{z4-z9}z4r---{z9-z4}z4l..z2l--cycle;
filldraw z2l{dir (180+90+theta)}..{z1-z0}z0l--z2r--cycle;
endchar;

enddef;


def RevLowerBotBarb (expr ChCode, ChWidthFrac,ChDepthFrac)=
beginchar(ChCode,ChWidthFrac*18u#,0,ChDepthFrac*18u#);
adjust_fit(0,0); pickup crisp.nib;
x1=w ; x0=0;
y1=-d;  y0=h;
numeric theta,delta;theta=angle(z1-z0);
pos1(rule_thickness,90+theta);
pos0(rule_thickness,90+theta);
pos2(1.5rule_thickness,theta);
pos3(bar,theta); pos4(bar,theta);
z4=z0+ dir (90-(45-theta)) scaled ((3u++.24asc_height)+eps-rule_thickness-.5crisp.breadth);
z3=z0+ dir -(45-theta) scaled ((3u++.24asc_height)+eps-rule_thickness-.5crisp.breadth);
pos5(bar,90-(45-theta)); z5l=z0; pos6(bar,-(45-theta)); z6l=z0;
z2r=z0;
z9=.381966[.5[z3,z4],z0];
pickup crisp.nib;
filldraw z2r..{z3-z9}z3r---{z9-z3}z3l..z2l--cycle;
filldraw z2l{dir (90+theta)}..{z1-z0}z0r--z2r--cycle;

endchar;

enddef;

def RevLowerTopHook (expr ChCode, ChWidthFrac, ChDepthFrac)=
compute_spread(.45x_height#,.55x_height);
beginchar(ChCode,ChWidthFrac*18u#,0,ChDepthFrac*18u#);
adjust_fit(0,0); pickup crisp.nib;
x1=(w) ; x0= 0;
y1=-d;  y0=h;
numeric theta; theta=angle(z1-z0);
pos1(rule_thickness,-90+theta);
pos2(1.5rule_thickness,theta);
pos3(bar,theta); pos4(bar,theta);
z4=z0+ dir (90+theta) xscaled spread yscaled spread;
pos5(bar,90-(45-theta)); z5l=z0; pos6(bar,-(45-theta)); z6l=z0;
z2l=z0;
z9=.381966[.5[z3,z4],z0];
pickup rule.nib;
z40= 1/2[z0,z4] + dir (180+theta) xscaled 2.5u yscaled 2.5u;
draw z0{z0-z1}..{z4-z0}z40..{z1-z0}z4;
endchar;
enddef;


def RevLowerBotHook (expr ChCode, ChWidthFrac, ChDepthFrac)=
compute_spread(.45x_height#,.55x_height);
beginchar(ChCode,ChWidthFrac*18u#,0,ChDepthFrac*18u#);
adjust_fit(0,0); pickup crisp.nib;
x1=(w) ; x0= 0;
y1=-d;  y0=h;
numeric theta,delta; theta=angle(z1-z0); delta=3u++.24asc_height;
if abs(theta-45)<2.5: theta:=45; y1:=y0+x1-x0; fi % near-45$^\circ$ angle
pos1(rule_thickness,-90+theta);
pos2(1.5rule_thickness,theta);
pos3(bar,theta); pos4(bar,theta);
z4=z0+ dir -(90-theta) xscaled spread yscaled spread;
%dir (90-theta) xscaled (delta+eps) yscaled (delta+eps);
%z3=z0+ dir -(45-theta) xscaled (delta+eps) yscaled (delta+eps);
pos5(bar,90-(45-theta)); z5l=z0; pos6(bar,-(45-theta)); z6l=z0;
z2l=z0;
z9=.381966[.5[z3,z4],z0];
z40= 1/2[z0,z4] + dir (180+theta) xscaled 2.5u yscaled 2.5u;
pickup rule.nib;
draw z0{z0-z1}..{z4-z0}z40..{z1-z0}z4;
%penstroke z2e..{z4-z9}z4e;

penlabels(0,1,2,3,4,5,6,9); endchar;
enddef;

def RevUpperTopHook (expr ChCode, ChWidthFrac, ChDepthFrac)=

beginchar(ChCode,ChWidthFrac*18u#,0,ChDepthFrac*18u#);
adjust_fit(0,0); pickup crisp.nib;
x1=0; x0=(w);
y1=h; y0=-d;
numeric theta; theta=angle(z0-z1);
pos1(rule_thickness,90+theta);
pos2(1.5rule_thickness,theta);
pos3(bar,theta); pos4(bar,theta);
z4=z0+ dir (90+theta) xscaled (spread) yscaled (spread);
z2r=z0;
z9=.381966[.5[z3,z4],z0];
z40= 1/2[z0,z4] + dir theta xscaled 2.5u yscaled 2.5u;
pickup rule.nib;
draw z0{z0-z1}..{z4-z0}z40..{z1-z0}z4;
endchar;
enddef;

def RevUpperBotHook (expr ChCode, ChWidthFrac, ChDepthFrac)=
beginchar(ChCode,ChWidthFrac*18u#,0,ChDepthFrac*18u#);
adjust_fit(0,0); pickup crisp.nib;
x1= 0; x0=(w);
y1=h; y0=-d;
numeric theta; theta=angle(z0-z1);
pos1(rule_thickness,90+theta);
pos2(1.5rule_thickness,theta);
pos3(bar,theta); pos4(bar,theta);
z4=z0+ dir -(90-theta) xscaled (spread) yscaled (spread);
z2r=z0;
z9=.381966[.5[z3,z4],z0];
z40= 1/2[z0,z4] + dir theta xscaled 2.5u yscaled 2.5u;
pickup rule.nib;
draw z0{z0-z1}..{z4-z0}z40..{z1-z0}z4;
penlabels(0,1,2,3,4,5,6,9); endchar;
enddef;


def RevSquiggle (expr ChCode, ChWidthFrac,ChDepthFrac)=

beginchar(ChCode,ChWidthFrac*18u#,0,ChDepthFrac*18u#);
adjust_fit(0,0);
x0= 0; x1=(w);
y0=h; y1=-d;
numeric theta,delta; theta=angle(z1-z0);
delta=3u;
z2=.5/6[z0,z1];
z8=5.5/6[z0,z1];
z3=1/6[z0,z1] + dir (90+theta) xscaled (delta+eps) yscaled (delta+eps);
z5=3/6[z0,z1] + dir (90+theta) xscaled (delta+eps) yscaled (delta+eps);
z7=5/6[z0,z1] + dir (90+theta) xscaled (delta+eps) yscaled (delta+eps);
z4=2/6[z0,z1] + dir -(90-theta) xscaled (delta+eps) yscaled (delta+eps);
z6=4/6[z0,z1] + dir -(90-theta) xscaled (delta+eps) yscaled (delta+eps);

pickup pencircle scaled rule_thickness;
draw z0--z2--z3--z4--z5--z6--z7--z8--z1;
penlabels(1,2); endchar;
enddef;


RevShaft(0,1,2/5);
RevShaft(13,1,1/2);
RevShaft(26,1,3/5);
RevShaft(39,1,2/3);
RevShaft(52,1,3/4);
RevShaft(65,1,4/5);
RevShaft(78,1,5/6);
RevShaft(91,1,1);
RevShaft(104,5/6,1);

RevDashedShaft(1,1,2/5);
RevDashedShaft(14,1,1/2);
RevDashedShaft(27,1,3/5);
RevDashedShaft(40,1,2/3);
RevDashedShaft(53,1,3/4);
RevDashedShaft(66,1,4/5);
RevDashedShaft(79,1,5/6);
RevDashedShaft(92,1,1);
RevDashedShaft(105,5/6,1);

RevUpperHead(2,1,2/5);
RevUpperHead(15,1,1/2);
RevUpperHead(28,1,3/5);
RevUpperHead(41,1,2/3);
RevUpperHead(54,1,3/4);
RevUpperHead(67,1,4/5);
RevUpperHead(80,1,5/6);
RevUpperHead(93,1,1);
RevUpperHead(106,5/6,1);

RevLowerHead(3,1,2/5);
RevLowerHead(16,1,1/2);
RevLowerHead(29,1,3/5);
RevLowerHead(42,1,2/3);
RevLowerHead(55,1,3/4);
RevLowerHead(68,1,4/5);
RevLowerHead(81,1,5/6);
RevLowerHead(94,1,1);
RevLowerHead(107,5/6,1);


RevUpperTopBarb(4,1,2/5);
RevUpperTopBarb(17,1,1/2);
RevUpperTopBarb(30,1,3/5);
RevUpperTopBarb(43,1,2/3);
RevUpperTopBarb(56,1,3/4);
RevUpperTopBarb(69,1,4/5);
RevUpperTopBarb(82,1,5/6);
RevUpperTopBarb(95,1,1);
RevUpperTopBarb(108,5/6,1);


RevUpperBotBarb(5,1,2/5);
RevUpperBotBarb(18,1,1/2);
RevUpperBotBarb(31,1,3/5);
RevUpperBotBarb(44,1,2/3);
RevUpperBotBarb(57,1,3/4);
RevUpperBotBarb(70,1,4/5);
RevUpperBotBarb(83,1,5/6);
RevUpperBotBarb(96,1,1);
RevUpperBotBarb(109,5/6,1);


RevLowerTopBarb(6,1,2/5);
RevLowerTopBarb(19,1,1/2);
RevLowerTopBarb(32,1,3/5);
RevLowerTopBarb(45,1,2/3);
RevLowerTopBarb(58,1,3/4);
RevLowerTopBarb(71,1,4/5);
RevLowerTopBarb(84,1,5/6);
RevLowerTopBarb(97,1,1);
RevLowerTopBarb(110,5/6,1);



RevLowerBotBarb(7,1,2/5);
RevLowerBotBarb(20,1,1/2);
RevLowerBotBarb(33,1,3/5);
RevLowerBotBarb(46,1,2/3);
RevLowerBotBarb(59,1,3/4);
RevLowerBotBarb(72,1,4/5);
RevLowerBotBarb(85,1,5/6);
RevLowerBotBarb(98,1,1);
RevLowerBotBarb(111,5/6,1);


RevLowerTopHook(8,1,2/5);
RevLowerTopHook(21,1,1/2);
RevLowerTopHook(34,1,3/5);
RevLowerTopHook(47,1,2/3);
RevLowerTopHook(60,1,3/4);
RevLowerTopHook(73,1,4/5);
RevLowerTopHook(86,1,5/6);
RevLowerTopHook(99,1,1);
RevLowerTopHook(112,5/6,1);

RevLowerBotHook(9,1,2/5);
RevLowerBotHook(22,1,1/2);
RevLowerBotHook(35,1,3/5);
RevLowerBotHook(48,1,2/3);
RevLowerBotHook(61,1,3/4);
RevLowerBotHook(74,1,4/5);
RevLowerBotHook(87,1,5/6);
RevLowerBotHook(100,1,1);
RevLowerBotHook(113,5/6,1);


RevUpperTopHook(10,1,2/5);
RevUpperTopHook(23,1,1/2);
RevUpperTopHook(36,1,3/5);
RevUpperTopHook(49,1,2/3);
RevUpperTopHook(62,1,3/4);
RevUpperTopHook(75,1,4/5);
RevUpperTopHook(88,1,5/6);
RevUpperTopHook(101,1,1);
RevUpperTopHook(114,5/6,1);


RevUpperBotHook(11,1,2/5);
RevUpperBotHook(24,1,1/2);
RevUpperBotHook(37,1,3/5);
RevUpperBotHook(50,1,2/3);
RevUpperBotHook(63,1,3/4);
RevUpperBotHook(76,1,4/5);
RevUpperBotHook(89,1,5/6);
RevUpperBotHook(102,1,1);
RevUpperBotHook(115,5/6,1);

RevSquiggle(12,1,2/5);
RevSquiggle(25,1,1/2);
RevSquiggle(38,1,3/5);
RevSquiggle(51,1,2/3);
RevSquiggle(64,1,3/4);
RevSquiggle(77,1,4/5);
RevSquiggle(90,1,5/6);
RevSquiggle(103,1,1);
RevSquiggle(116,5/6,1);

beginchar(117,0,0,0);
adjust_fit(0,0); pickup crisp.nib;
numeric delta; delta=3u++.24asc_height;
pickup rule.nib;
lft x0=0;
y0=0;
lft x2=0;
y2=y0;  %top
pos2(1.5rule_thickness,270);
pos3(bar,270); pos4(bar,270);
z4=z0+ dir (90-45) scaled ((3u++.24asc_height)+eps-rule_thickness-.5crisp.breadth);
z3=z0+ dir (90+45) scaled ((3u++.24asc_height)+eps-rule_thickness-.5crisp.breadth);
z9=.381966[.5[z3,z4],z0];
pickup crisp.nib;
filldraw z2r..{z3-z9}z3r---{z9-z3}z3l..z2l--cycle;
filldraw z2r..{z4-z9}z4r---{z9-z4}z4l..z2l--cycle;

endchar;

beginchar(118,0,0,10/3pt#);
adjust_fit(0,0); pickup rule.nib;
numeric delta; delta=((3u++.24asc_height)+eps-rule_thickness-.5crisp.breadth);
lft x0=0;
y0=0;
lft x2=0;
y2=y0;  %top
pos2(1.5rule_thickness,90);
pos3(bar,90); pos4(bar,90);
z4=z0+ dir (270-45) xscaled (delta+eps) yscaled (delta+eps);
z3=z0+ dir (270+45) xscaled (delta+eps) yscaled (delta+eps);
z9=.381966[.5[z3,z4],z0];
pickup crisp.nib;
filldraw z2r..{z3-z9}z3r---{z9-z3}z3l..z2l--cycle;
filldraw z2r..{z4-z9}z4r---{z9-z4}z4l..z2l--cycle;
endchar;

beginchar(119,0,0,0);
adjust_fit(0,0); pickup rule.nib;
numeric delta; delta=((3u++.24asc_height)+eps-rule_thickness-.5crisp.breadth);
lft x0=0;
y0=0;
lft x2=0;
y2=y0;
pos0(rule_thickness,0);
pos2(1.5rule_thickness,270);
pos3(bar,270); pos4(bar,270);
z4=z0+ dir (90-45) xscaled (delta+eps) yscaled (delta+eps);
z3=z0+ dir (90+45) xscaled (delta+eps) yscaled (delta+eps);
z9=.381966[.5[z3,z4],z0];

pickup crisp.nib;
filldraw z2r..{z3-z9}z3r---{z9-z3}z3l..z2l--cycle;
filldraw z2r{right}..{up}z0r--z2l--cycle;
penlabels(0,1,2,3,4,5,6,9); endchar;

beginchar(120,0,0,0);
adjust_fit(0,0); pickup rule.nib;
numeric delta; delta=((3u++.24asc_height)+eps-rule_thickness-.5crisp.breadth);
lft x0=0;
y0=0;
lft x2=y0; y2=0;
pos0(rule_thickness,0);
pos2(1.5rule_thickness,270);
pos3(bar,270); pos4(bar,270);
z4=z0+ dir (90-45) xscaled (delta+eps) yscaled (delta+eps);
z3=z0+ dir (90+45) xscaled (delta+eps) yscaled (delta+eps);
z9=.381966[.5[z3,z4],z0];
pickup crisp.nib;
filldraw z2r..{z4-z9}z4r---{z9-z4}z4l..z2l--cycle;
filldraw z2r{left}..{up}z0l--z2l--cycle;
penlabels(0,1,2,3,4,5,6,9); endchar;

compute_spread(.45x_height#,.55x_height);
beginchar(121,0,0,10/3pt#);
adjust_fit(0,0); pickup rule.nib;
lft x0=0;
y0=0;
z4=z0+ dir 180 xscaled spread yscaled spread;
bot z40= 1/2[z0,z4] + dir 270 xscaled 2.5u yscaled 2.5u;
draw z0{down}..{z4-z0}z40..{up}z4;
penlabels(0,1,2,3,4,5,6,9); endchar;

compute_spread(.45x_height#,.55x_height);
beginchar(122,0,0,10/3pt#);
adjust_fit(0,0); pickup rule.nib;
lft x0=0;
y0=0;
z4=z0 - dir 180 xscaled spread yscaled spread;
bot z40= 1/2[z0,z4] + dir 270 xscaled 2.5u yscaled 2.5u;
%draw z0{down}..{z4-z0}z40..{up}z4;
draw z0{down}..{z4-z0}z40..{up}z4;
penlabels(0,1,2,3,4,5,6,9); endchar;
bye.