[pstricks] object=plan in pst-solides3d

[jp.vignault at free.fr]

Hi,

> The xz plane (figure 1.3.1c) simply does not show up. 

maybe you can try 

			\psSolid[object=plan,
				definition=equation,
				args={[0 -1 0 0]},
				fillcolor=gray,
				incolor=red!30,
				base=0 5 0 5,
%				planmarks,
%				plangrid,
				showbase,
%				
%				grid,
				]

(I did'nt try).

Jean-Paul