1 \section{Numbering of the faces
}
3 The option
\Lkeyword{numfaces
} gives permission to number every face with its correspondent index number.
5 \item \texttt{\Lkeyword{numfaces
}=
\Lkeyval{all
}} all faces are numbered;
6 \item \verb+numefaces=
0 1 2 3+ only the faces that have index
0,
1,
2 and
3 are numbered.
8 The option
\Lkeyword{fontsize
} allows to fix the measurement of the used character set.
9 Finally, the Boolean
\Lkeyword{visibility
} the numbering of
\Index{faces
} that are not visible.
10 By default, the Boolean is set to
\texttt{\Lkeyword{visibility
}=true
}, so the visibility is set up (e.~g. numbers are not set to invisible faces).
13 \psset{viewpoint=
50 20 30 rtp2xyz,Decran=
50}
14 \begin{LTXexample
}[width=
8cm
]
16 \begin{pspicture
}(-
4,-
3)(
3,
1.5)
17 \psSolid[object=grille,
20 linecolor=gray
](
0,
0,
0)
21 \axesIIID(
0,
0,
0)(
4,
2,
1)
27 %% \begin{multicols}{2}
30 %% \psset{SphericalCoor=true,viewpoint=50 20 30}
33 %% \psset{lightsrc=30 -20 10,SphericalCoor=true,viewpoint=50 -20 10,Decran=50}
34 %% \begin{pspicture*}(-5,-4)(6,6)
35 %% \psframe(-5,-4)(6,6)
36 %% \axesIIID(0,0,0)(4,4,4)
37 %% \psSolid[object=cube,
41 %% action=draw**](0,0,0)
49 %% \axesIIID(0,0,0)(4,4,4)
50 %% \psSolid[object=cube,
54 %% action=draw**](0,0,0)
62 \psset{viewpoint=
50 -
20 10 rtp2xyz,Decran=
50}
63 \begin{LTXexample
}[width=
8cm
]
64 \begin{pspicture*
}(-
4,-
3)(
4,
3)
76 The options of
\Lcs{psSolid
} accept PostScript commands, in particular the
\verb+for+ loop.
78 With the instruction
\verb+numfaces=
0 1 5 {} for+ all faces with the index numbers between
0
79 and
5 are set up. The instruction
\verb+numfaces=
8 3 23 {} for+ sets up every third index number between
8 and
23.
81 \psset{viewpoint=
50 -
20 10 rtp2xyz,Decran=
50}
82 \begin{LTXexample
}[width=
8cm
]
83 \begin{pspicture*
}(-
4,-
3)(
4,
3)
84 \axesIIID(
0,
0,
0)(
8,
3,
2)
85 \psSolid[object=grille,