1 \section{Commands for drawing}
3 The parameter for \Index{drawing} comes with the key value \Lkeyword{action} within the command
6 Four values are possible:
8 \item \Lkeyval{none}: nothing is drawn.
9 \item \Lkeyval{draw}: draws the solid as a framework and sets up dashed lines for the hidden edges.
10 \item \Lkeyval{draw*}: draws the solid with dashed lines for the hidden edges and colours the visible faces.
11 \item \Lkeyword{draw**}: draws the solid with a painting algorithm, without the
12 hidden edges and with colouration of the visible faces.
14 \encadre{The key values \Lkeyval{draw} and \Lkeyword{draw*} only make sense for convex solids.}
19 \psset{viewpoint=50 -20 30 rtp2xyz}
22 \begin{pspicture}(-2.5,-2.5)(2.5,2.5)
23 \psframe(-2.5,-2.5)(2.5,2.5)
25 \psSolid[object=cube,action=draw,RotZ=20]%
26 \rput(-1,-2){\texttt{draw}}
30 \begin{pspicture}(-2.5,-2.5)(2.5,2.5)
31 \psframe(-2.5,-2.5)(2.5,2.5)
33 \psSolid[object=cube,action=draw*,fillcolor=magenta!20,RotZ=20]%
34 \rput(-1,-2){\texttt{draw*}}
38 \begin{pspicture}(-2.5,-2.5)(2.5,2.5)
39 \psframe(-2.5,-2.5)(2.5,2.5)
41 \psSolid[object=cube,fillcolor=magenta!20,RotZ=20]%
42 \rput(-1,-2){\texttt{draw**}}