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\section{Removing faces}
The key value \texttt{\Lkeyword{rm}=1 2 8} allows to suppress the drawing of the
faces with the index numbers 1, 2 and 8, to be able to have a look inside a \Index{hollow} solid.
\begin{LTXexample}[width=5cm]
\psset{Decran=12,grid=true,viewpoint=15 10 15}
\begin{pspicture}(-2.5,-2.5)(2.5,2.5)
\psSolid[object=cylindrecreux,
ngrid=2 6,
h=6,r=2,
fillcolor=green!60,
incolor=yellow!50,
RotZ=-60,
rm=1 3 6,](0,0,-3)
\end{pspicture}
\end{LTXexample}
\begin{LTXexample}[width=5cm]
\psset{Decran=12,grid=true,viewpoint=15 10 15}
\begin{pspicture}(-2.5,-2.5)(2.5,2.5)
\psSolid[object=troncconecreux,
rm=1 12 13 14,
r0=3,r1=1,h=6,
fillcolor=green!60,
incolor=yellow,
mode=3](0,0,-3)
\end{pspicture}
\end{LTXexample}
\endinput
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