% Computer Modern Blackboard Fibonacci Font
%
% font v ?.? 29/03/1993, sauterised v1.0 15/11/1995
%
% Author :         Gilles F. ROBERT
% sauterisation : Hubert HOLIN

if unknown blbbase: input blbbase fi

font_identifier:="CMBBFIB"; font_size design_size * pt#;

u#:=(21*(design_size/8))/36pt#;      % unit width
width_adj#:=0pt#;    % width adjustment for certain characters
serif_fit#:=(-2*(design_size/8))/36pt#;    % extra sidebar near lowercase serifs
cap_serif_fit#:=0pt#;    % extra sidebar near uppercase serifs
letter_fit#:=0pt#;    % extra space added to all sidebars

body_height#:=(233*(design_size/8))/36pt#;  % height of tallest characters
asc_height#:=(233*(design_size/8))/36pt#;    % height of lowercase ascenders
cap_height#:=(233*(design_size/8))/36pt#;    % height of caps
fig_height#:=(233*(design_size/8))/36pt#;    % height of numerals
x_height#:=(144*(design_size/8))/36pt#;    % height of lowercase without ascenders
math_axis#:=(89*(design_size/8))/36pt#;    % axis of symmetry for math symbols
bar_height#:=(89*(design_size/8))/36pt#;    % height of crossbar in lowercase e
comma_depth#:=(55*(design_size/8))/36pt#;    % depth of comma below baseline
desc_depth#:=(55*(design_size/8))/36pt#;    % depth of lowercase descenders

crisp#:=0pt#;      % diameter of serif corners
tiny#:=(13*(design_size/8))/36pt#;      % diameter of rounded corners
fine#:=(13*(design_size/8))/36pt#;      % diameter of sharply rounded corners
thin_join#:=(13*(design_size/8))/36pt#;    % width of extrafine details
hair#:=(21*(design_size/8))/36pt#;      % lowercase hairline breadth
stem#:=(34*(design_size/8))/36pt#;    % lowercase stem breadth
curve#:=(39*(design_size/8))/36pt#;    % lowercase curve breadth
ess#:=(34*(design_size/8))/36pt#;      % breadth in middle of lowercase s
flare#:=(34*(design_size/8))/36pt#;    % diameter of bulbs or breadth of terminals
dot_size#:=(34*(design_size/8))/36pt#;    % diameter of dots
cap_hair#:=(21*(design_size/8))/36pt#;    % uppercase hairline breadth
cap_stem#:=(34*(design_size/8))/36pt#;    % uppercase stem breadth
cap_curve#:=(39*(design_size/8))/36pt#;    % uppercase curve breadth
cap_ess#:=(34*(design_size/8))/36pt#;    % breadth in middle of uppercase s
rule_thickness#:=(21*(design_size/8))/36pt#;  % thickness of lines in math symbols

dish#:=(1*(design_size/8))/36pt#;      % amount erased at top or bottom of serifs
bracket#:=(21*(design_size/8))/36pt#;    % vertical distance from serif base to tangent
jut#:=(21*(design_size/8))/36pt#;      % protrusion of lowercase serifs
cap_jut#:=(21*(design_size/8))/36pt#;    % protrusion of uppercase serifs
beak_jut#:=(13*(design_size/8))/36pt#;    % horizontal protrusion of beak serifs
beak#:=(55*(design_size/8))/36pt#;    % vertical protrusion of beak serifs
vair#:=(13*(design_size/8))/36pt#;      % vertical diameter of hairlines
notch_cut#:=(8*(design_size/8)) * pt#;    % maximum breadth above or below notches
bar#:=(13*(design_size/8))/36pt#;      % lowercase bar thickness
slab#:=(13*(design_size/8))/36pt#;    % serif and arm thickness
cap_bar#:=(13*(design_size/8))/36pt#;    % uppercase bar thickness
cap_band#:=(13*(design_size/8))/36pt#;    % uppercase thickness above/below lobes
cap_notch_cut#:=(8*(design_size/8)) * pt#;    % max breadth above/below uppercase notches
serif_drop#:=(3*(design_size/8))/36pt#;    % vertical drop of sloped serifs
stem_corr#:=(1*(design_size/8))/36pt#;    % for small refinements of stem breadth
vair_corr#:=(1*(design_size/8))/36pt#;    % for small refinements of hairline height
apex_corr#:=0pt#;    % extra width at diagonal junctions

o#:=(8*(design_size/8))/36pt#;      % amount of overshoot for curves
apex_o#:=(8*(design_size/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:=3/8;      % extra openness of math symbols
superness:=1/sqrt2;    % parameter for superellipses
superpull:=1/13;    % extra openness inside bowls
beak_darkness:=5/13;    % 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:=false;    % should an italic-style g be used?
low_asterisk:=false;    % should the asterisk be centered at the axis?
math_fitting:=false;    % should math-mode spacing be used?

interspace#:=jut#;    % space between the doubled bars

cap_interspace#:= cap_jut#;   % same for uppercase letters

generate blbord      % switch to the driver file