% --- start of displayed preamble in the book --- input metaobj % Circles produced as before % --- end of displayed preamble in the book --- newCircle.a(btex start etex); newCircle.b(btex end etex); a.c=origin; b.c-a.c=(3cm,1cm); defaultfont:="ptmr8r"; warningcheck:=0; beginfig(1) nccurve(a)(b) "angleA(-30)", "angleB(80)", "linecolor(blue)","linewidth(3pt)", "linestyle(dashed withdots)", "linetension(2)"; drawObj(a,b); endfig; end;