% pseudo-halftone font with 65 radii that move counterclockwise
mode_setup; q:=savepen;
w#:=2.5pt#; font_quad:=w#; designsize:=8w#;

for i=0 upto 64: beginchar(i+ASCII"0",w#,w#,0); pickup q;
 draw ((0,0)--(w,0)) rotated (90*i/64); endchar;
 endfor
end.