\input{preamble-standalone.ltx} \begin{document} % Ex. No. 250 (Section 31.4 : Own style) \begin{tikzpicture} \tkzDefPoint(0,0){O} \tkzDefPoint(0,1){A} \tkzDrawPoints(O) % general style \tkzDrawPoints[mystyle,size=4](A) % my style \tkzLabelPoints(O,A) \end{tikzpicture} \end{document}