2 \psset{lightsrc=40 20 25,viewpoint=50 30 10 rtp2xyz,Decran=30,deactivatecolor}
3 \begin{pspicture}(-5,-5)(5,5)
5 \psSolid[object=datfile,file=V1,unit=2]
6 \psSolid[object=grille,base=-4 8 0 10,ngrid=1,action=draw,unit=0.5]%
7 \psSolid[object=datfile,file=V2,unit=2]}
9 \psSolid[object=datfile,file=L1]
10 \psSolid[object=grille,base=-4 8 -4 10,ngrid=1,action=draw,unit=0.25]%
11 \psSolid[object=datfile,file=L2]}
13 \psset{lightsrc=40 20 25,viewpoint=50 10 20 rtp2xyz,Decran=30}
14 \psSolid[object=datfile,file=S1]
15 \psSolid[object=grille,base=-4 8 -4 10,ngrid=1,action=draw,unit=0.25]%
16 \psSolid[object=datfile,file=S2]}
18 \psSolid[object=datfile,file=G1]
19 \psSolid[object=grille,base=-4 8 -2 12,ngrid=1,action=draw,unit=0.25]%
20 \psSolid[object=datfile,file=G2]}
22 \psset{lightsrc=40 20 25,viewpoint=50 10 20 rtp2xyz,Decran=30}
23 \psSolid[object=datfile,file=S3]
24 \psSolid[object=grille,base=-4 8 -4 10,ngrid=1,action=draw,unit=0.25]%
25 \psSolid[object=datfile,file=S4]}