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|
%(c) 1992 by Jo Grant
mode_def testing=
pixels_per_inch:=300*4;
blacker:=.1;
o_correction:=1;
fillin:=.01;
proofing:=2;
fontmaking:=0;
tracingtitles:=1;
enddef;
if unknown mode:
mode:=testing; fi
mode_setup;
turningcheck := 0;
string style;
style := "classic";
%style := "academic";
%style := "academicbf";
if mode=testing: screenstrokes; fi
% parameters that control what a wedge looks like.
width_to_length_ratio := 1/2;
tailang := 30;
costail := cosd tailang;
tantail := sind tailang/cosd tailang;
u# = 1/384in#;
wedge_len# := 50u#;
letter_fit#:= 5u#;
wedge_wid# := wedge_len#*width_to_length_ratio;
tail_len# := wedge_wid#*costail;
stem_len# := wedge_len# - tail_len#;
tail_porp := tail_len#/wedge_len#;
stem_porp := stem_len#/wedge_len#;
let_height# := wedge_len#+wedge_wid#;
pen_thick# := wedge_len#/25;
half_big# := .5*let_height#*width_to_length_ratio;
define_pixels(wedge_len, wedge_wid, tail_len, stem_len, let_height, pen_thick);
define_pixels(letter_fit);
def wedgepen = pickup pencircle scaled pen_thick; enddef;
def wedgesetup =
save V;
numeric V[]len, V[]width, V[]theta, V[]doit;
pair V[]pnt, V[]cw, V[]ccw;
for n = 0 step 1 until 20:
wlen(n) := wedge_len;
wwid(n) := wedge_wid;
rot(n) := 0;
V[n]doit := 0;
endfor
enddef;
def set (expr n) =
wccw(n) = wpnt(n) - ((V[n]len,-V[n]wid/2) rotated (rot(n)));
wcw(n) = wpnt(n) - ((V[n]len, V[n]wid/2) rotated (rot(n)));
V[n]doit := 1;
enddef;
def drawwedges =
for n = 0 step 1 until 20:
if V[n]doit = 1:
% classic
if style = "classic":
wedgepen;
path cw, ccw, tail;
ccw = wpnt(n)..controls mid(n) and mid(n)..wccw(n);
tail = wccw(n)..controls .7[mid(n),wccw(n)] and .7[mid(n),wcw(n)]..wcw(n);
cw = wcw(n)..controls mid(n) and mid(n)..wpnt(n);
filldraw ccw & tail & cw & cycle;
drawdot wccw(n);
drawdot wcw(n);
fi;
% academic
if style = "academic":
wedgepen;
draw wpnt(n)--mid(n)--wccw(n)--wcw(n)--mid(n);
unfill edgein(mid(n), tback(n), pen_thick)--
edgein(wccw(n), cwmid(n), pen_thick)--
edgein(wcw(n), ccwmid(n), pen_thick)--cycle;
unfill edgein(mid(n), tback(n), pen_thick)--
edgein(wccw(n), cwmid(n), pen_thick)--
edgein(wcw(n), ccwmid(n), pen_thick)--cycle;
fi;
% % bf academic
if style = "academicbf":
wedgepen;
draw wpnt(n)--mid(n);
filldraw mid(n)--wccw(n)--wcw(n)--cycle;
fi;
fi;
endfor;
enddef;
def edgein(expr from, to, amnt) =
((from) + ((to) - (from))/length((to) - (from))*(amnt))
enddef;
def wedgeset(expr first, last) =
for n = first step 1 until last:
set(n);
endfor;
drawwedges;
enddef;
def wlen(expr n) =
V[n]len
enddef;
def wwid(expr n) =
V[n]wid
enddef;
def wlenwid(expr n, l) =
V[n]len := l; V[n]wid := l*width_to_length_ratio
enddef;
def rot(expr n) =
V[n]theta
enddef;
def wpnt(expr n) =
V[n]pnt
enddef;
def wccw(expr n) =
V[n]ccw
enddef;
def wcw(expr n) =
V[n]cw
enddef;
def tback(expr n) =
(.5[wcw(n), wccw(n)])
enddef;
def cwmid(expr n) =
(.5[wcw(n), mid(n)])
enddef;
def ccwmid(expr n) =
(.5[wccw(n), mid(n)])
enddef;
def wmid(expr n) = % identical to mid
((wpnt(n) + wcw(n) + wccw(n))/3)
enddef;
def mid(expr n) =
((wpnt(n) + wcw(n) + wccw(n))/3)
enddef;
def cen(expr n) =
(.5[tback(n), wpnt(n)])
enddef;
def mstem(expr n) =
(.5[mid(n), wpnt(n)])
enddef;
def tmid(expr n) =
((mid(n) + wcw(n) + wccw(n))/3)
enddef;
def adjust_fit(expr left_adj, right_adj) =
l := -hround(left_adj*hppp)-letter_fit;
interim xoffset := -l;
charwd := charwd+2letter_fit# + left_adj + right_adj;
r := l+hround(charwd*hppp);
w := r-hround(right_adj*hppp) - letter_fit;
enddef;
def makebox(text r) =
r((-letter_fit,0), (w+letter_fit,0));
r((-letter_fit,h), (w+letter_fit,h));
r((-letter_fit,0), (-letter_fit,h));
r((w+letter_fit,0), (w+letter_fit,h));
r((0,0), (0,h));
r((w,0), (w,h));
if charic<>0:
r((w+charic*hppp,h.o_),(w+charic*hppp,.5h.o_));
fi
enddef;
extra_beginchar := extra_beginchar & "wedgesetup;adjust_fit(0,0);";
input cunsum;
%input cun0076;
font_normal_space wedge_wid#;
font_normal_stretch wedge_wid#/3;
font_normal_shrink wedge_wid#/3;
end;
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