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+\input{preamble-standalone.ltx}
+\begin{document}
+
+% Ex. No. 191 (Section 26.2.1 : Exemple d'utilisation de \tkzcname{tkzShowTransformation})
+
+\begin{tikzpicture}[scale=.6]
+ \tkzDefPoint(0,0){O} \tkzDefPoint(2,-2){A}
+ \tkzDefPoint(70:4){B} \tkzDrawPoints(A,O,B)
+ \tkzLabelPoints(A,O,B)
+ \tkzDrawLine[add= 2 and 2](O,A)
+ \tkzDefPointBy[translation=from O to A](B)
+ \tkzGetPoint{C}
+ \tkzDrawPoint[color=orange](C) \tkzLabelPoints(C)
+ \tkzShowTransformation[translation=from O to A,%
+ length=2](B)
+ \tkzDrawSegments[->,color=orange](O,A B,C)
+ \tkzDefPointBy[reflection=over O--A](B) \tkzGetPoint{E}
+ \tkzDrawSegment[blue](B,E)
+ \tkzDrawPoint[color=blue](E)\tkzLabelPoints(E)
+ \tkzShowTransformation[reflection=over O--A,size=2](B)
+ \tkzDefPointBy[symmetry=center O](B) \tkzGetPoint{F}
+ \tkzDrawSegment[color=green](B,F)
+ \tkzDrawPoint[color=green](F)\tkzLabelPoints(F)
+ \tkzShowTransformation[symmetry=center O,%
+ length=2](B)
+ \tkzDefPointBy[projection=onto O--A](C)
+ \tkzGetPoint{H}
+ \tkzDrawSegments[color=magenta](C,H)
+ \tkzDrawPoint[color=magenta](H)\tkzLabelPoints(H)
+ \tkzShowTransformation[projection=onto O--A,%
+ color=red,size=3,gap=-2](C)
+\end{tikzpicture}
+
+\end{document}