\input{preamble-standalone.ltx} \begin{document} % Ex. No. 221 (Section 27.1.4 : Example of \tkzcname{tkzShowLine} and \tkzname{mediator}) \begin{tikzpicture} \tkzDefPoint(2,2){A} \tkzDefPoint(5,4){B} \tkzDrawPoints(A,B) \tkzShowLine[mediator,color=orange,length=1](A,B) \tkzGetPoints{i}{j} \tkzDrawLines[add=-0.1 and -0.1](i,j) \tkzDrawLines(A,B) \tkzLabelPoints[below =3pt](A,B) \end{tikzpicture} \end{document}