%% 
%%  Ein Beispiel der DANTE-Edition
%%  
%%  2. Auflage
%% 
%%  Beispiel 15-02-66 auf Seite 748.
%% 
%%  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{graphicx}
\def\XeTeX{X\raisebox{-0.5ex}{E}\kern-0.125em\TeX}
%\DeclareRobustCommand\XeTeX{X\kern-0.5em\raisebox{-0.5ex}{\reflectbox{E}}\kern0.27em\TeX}
\begin{document}
etex
% --- start of displayed preamble in the book ---
input piechartmp;
% --- end of displayed preamble in the book ---
beginfig(1)
SetupColors((0.6,0.5),(0.2,0.3),false);
SetupValue(this, " Tsnd");
Segment(44,"FU",auto);  % 1
Segment(27,"HU",auto);  % 2
Segment(14,"TFH",auto); % 3
Segment(41,"TU",auto);  % 4
SegmentState(1,this,0.2);
SegmentState(4,invisible,0);
PieChart(2.25cm,0.3,50,-90,0);
Label.auto(0)(name)(outwards,0);
Label(0)(value)(inwards,0)
  withcolor white;
endfig;
end;
\end{document}