%% Ein Beispiel der DANTE-Edition

%%
%% Ein Beispiel der DANTE-Edition
%%
%% 1. Auflage
%%
%% Beispiel 15-02-41 auf Seite 754.
%%
%% Copyright (C) 2011 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}
\begin{document}
etex
% --- start of displayed preamble in the book ---
input graph;
% --- end of displayed preamble in the book ---
beginfig(1)
draw
begingraph(8cm,5.5cm)
path p,q;
gdata("data/mp/data1-mp.dat", v,
augment.p(v1,v2); );
q:=(xpart point 0 of p, 0)--p--
(xpart point length(p) of p,0)--cycle;
gfill q withcolor 0.8white;
gdraw p withpen pencircle scaled 2bp;
endgraph;
endfig;
end;
\end{document}