envelope

Il est possible de modifier et de compiler cet exemple :

\documentclass[border=10pt]{standalone}
\usepackage{tkz-euclide}
\begin{document}
%Based on a figure from O. Reboux with pst-eucl by D Rodriguez.
\begin{tikzpicture}
 \tkzInit[xmin=-6,ymin=-4,xmax=6,ymax=6] % necessary
 \tkzClip
 \tkzDefPoint(0,0){O} 
 \tkzDefPoint(132:4){A}
 \tkzDefPoint(5,0){B}
 \foreach \ang in {5,10,...,360}{%
  \tkzDefPoint(\ang:5){M}
  \tkzDefLine[mediator](A,M)
  \tkzDrawLine[color=magenta,add= 3 and 3](tkzFirstPointResult,tkzSecondPointResult)}
\end{tikzpicture}
\end{document}