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% The Computer Modern Roman family of fonts (by D. E. Knuth, 1979--1985)
% Modified for Double Stroke Characters (by Olaf Kummer, 1995)
% This file was renamed from {\tt roman.mf} to {\tt dsrom.mf}
% and modified for double stroke characters by Olaf Kummer, 1995.
% The parameters doublestroke_curvedist and doublestroke_twist
% were added by Olaf Kummer, 1996.
% Version 1.0
mode_setup; font_setup;
% New parameters
if unknown doublestroke_thin#: doublestroke_thin#:=cap_hair#; fi
if unknown doublestroke_thick#: doublestroke_thick#:=cap_stem#; fi
if unknown doublestroke_dist#: doublestroke_dist#:=0.9cap_stem#; fi
if unknown doublestroke_curvedist#: doublestroke_curvedist#:=1.1cap_stem#; fi
if unknown doublestroke_twist:
boolean doublestroke_twist; doublestroke_twist:=serifs;
fi
% Calculate new parameters
define_whole_blacker_pixels(doublestroke_thick,doublestroke_thin);
define_whole_pixels(doublestroke_dist,doublestroke_curvedist);
% Add new macros
% Fit stroke to curve
def curve_stroke(suffix @)(expr xpos,width,patha,pathb) =
x@1l=x@2l=xpos=x@1r-width=x@2r-width;
y@1l=y@1r=2h; y@2l=y@2r=-h;
z@3=(patha)intersectionpoint(z@1l..z@2l);
z@4=(pathb)intersectionpoint(z@1l..z@2l);
z@5=(pathb)intersectionpoint(z@1r..z@2r);
z@6=(patha)intersectionpoint(z@1r..z@2r);
fill z@3--z@4--z@5--z@6--cycle;
enddef;
input dsromu; % upper case (majuscules)
input dsromo; % other characters
bye.
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