%% %% Ein Beispiel der DANTE-Edition %% %% 2. Auflage %% %% Beispiel 15-02-19 auf Seite 722. %% %% 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 %% defaultfont:="ptmr8r"; warningcheck:=0; % --- start of displayed preamble in the book --- % --- end of displayed preamble in the book --- % % beginfig(1) u=1.75cm; pair A,B,C,AA,BB,CC,H; A=origin; B=(3u,0.25u); C=(1u,2u); AA = whatever [B,C] = whatever[A,A+((C-B) rotated 90)]; BB = whatever [A,C] = whatever[B,B+((C-A) rotated 90)]; CC = whatever [A,B] = whatever[C,C+((B-A) rotated 90)]; H = whatever [A,AA] = whatever [B,BB]; draw A--B--C--cycle; draw A--AA dashed evenly scaled 0.75; draw B--BB dashed evenly scaled 0.75; draw C--CC dashed evenly scaled 0.75; draw H withpen pencircle scaled 4bp; endfig; end;