%% 
%%  Ein Beispiel der DANTE-Edition
%%  
%%  2. Auflage
%% 
%%  Beispiel 15-02-46 auf Seite 735.
%% 
%%  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.
%% 
%% 
%% ==== 
verbatimtex
%% 
\documentclass[]{article}
\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}
\usepackage{textcomp}
\begin{document}
etex
% --- start of displayed preamble in the book ---
input metaobj;
% --- end of displayed preamble in the book ---
beginfig(1)
newCircle.anfang("Anfang")
  "filled(true)", "fillcolor(green)";
newCircle.ende(btex \textit{Ende} etex);
anfang.s = origin;
anfang.n + (0,1.5cm) = ende.s;
drawObj(anfang,ende);
ncline(anfang)(ende);
nccurve(anfang)(ende) "angleA(135)",
  "linecolor(red)",
  "posB(w)", "angleB(0)";
nccurve(ende)(anfang) "posA(e)",
  "angleA(0)", "angleB(210)",
  "posB(e)", "arrows(drawdblarrow)";
endfig;
end;
\end{document}