%%%%
%%%% This file belongs to the ROEX package.
%%%%
%%% draw write_preamble write_postamble find_BB set_BB fill_C draw_C
%%% draw fix_fill_cmyk fix_draw_cmyk
% ES-03.MF, ``COGWHEEL'':
%  Expanding stroke applied to a somewhat complex object, |miter_size|
%  set to zero.
% ---
input mftoeps; eps_mode_setup; input roex; tracingexpanding:=1;
% ---
vardef flex_polyg(expr n,a) =
 save zz; pair zz[\\];
 for i:=0 upto n-1:
  zz[i]:=up rotated (i*(360/n));
 endfor
 (zz0
 for i:=1 upto n:
  {(zz[i mod n]-zz[i-1]) rotated a}..{(zz[i mod n]-zz[i-1]) rotated -a}
   if i=n: cycle else: zz[i] fi
 endfor
 ) scaled .5
enddef;
% ---
beginchar("0",in#,in#,0);
  b:=.5mm; path p; p=flex_polyg(17,60) scaled w shifted (1/2w,1/2h);
 miter_size:=0bp; expand_stroke (p) (b) R;
% miter_size:=0bp; change_weight(p) (b) R;
 find_BB R1,R2;
 write_preamble jobname;
 draw_C R1,R2;
 write_postamble;
 for i:=1,2:
  if proofing>0:
   for j:=0 upto length(R[i])-1:
    makelabel(decimal(j) & "/" & decimal(i),point j of R[i]);
   endfor
  fi
 endfor
endchar;
end.
%%\end