% --- start of displayed preamble in the book --- input metaobj % --- end of displayed preamble in the book --- defaultfont:="ptmr8r"; warningcheck:=0; beginfig(1) newBox.a(btex Box A etex); newBox.b(btex Box B etex scaled \magstep3); newBox.c(btex Box C etex scaled \magstep2); newHBox.h(a,b,c) "align(top)"; h.c=origin; drawObj(h); endfig; end;