\input{preamble-standalone.ltx}
\begin{document}

% Ex. No. 246 (Section 31.2.1 : Use of \tkzcname{tkzSetUpPoint})

\begin{tikzpicture}
  \tkzSetUpPoint[shape = cross out,color=blue]
  \tkzInit[xmax=100,xstep=20,ymax=.5]
  \tkzDefPoint(20,1){A}
  \tkzDefPoint(80,0){B}
  \tkzDrawLine(A,B)
  \tkzDrawPoints(A,B)
\end{tikzpicture}

\end{document}