%%
%%  Ein Beispiel der DANTE-Edition
%%
%%  2. Auflage
%%
%%  Beispiel 15-02-1 auf Seite 717.
%%
%%  Copyright (C) 2016 Herbert Voss
%%
%%  It may be distributed and/or modified under the conditions
%%  of the LaTeX Project Public License, either version 1.3
%%  of this license or (at your option) any later version.
%%
%%  See http://www.latex-project.org/lppl.txt for details.
%%
%%
%% ====
% Show page(s) 1,2
%%

defaultfont:="ptmr8r";
warningcheck:=0;
% --- start of displayed preamble in the book ---

% --- end of displayed preamble in the book ---
% %
beginfig(1)
draw (0,0)--(50,0)--(50,30)--(0,30);
draw (0,0)..(50,0)..(50,30)..(0,30);
endfig;
beginfig(2);
draw (0,0)..(25,25)..(50,0)..(30,-20)..
     (25,0)..(10,20)..cycle;
endfig;
end;