\input{preamble-standalone.ltx} \begin{document} % Ex. No. 85 (Section 10.5.1 : Example of the use of \tkzcname{tkzRestoreBB}) \begin{tikzpicture} \tkzDefPoint(-2,-2){A} \tkzDefPoint(2,1){B} \tkzDefPoint(0,0){O} \tkzSaveBB \tkzShowBB[red,line width=1pt] \tkzRestoreBB \tkzDrawCircle(O,B) \tkzClipBB \tkzFillCircle[gray!20](O,B) \end{tikzpicture} \end{document}