[pstricks] order of commands

[Jon Joseph]

All: I have run into this problem before and I am wondering if there is a general rule I should be aware of.  In the code below I have indicated three locations where I am trying to draw a 3D line. Two work and one doesn't.  When I forget about this ordering issue it can take me along time to figure out the goof.  Advice please. Jon


\documentclass[12pt]{article}
\usepackage[letterpaper,asymmetric=true, total={18cm,22cm}, 
		top=3cm, bindingoffset=1cm]{geometry}
\usepackage[svgnames]{pstricks}
\usepackage{pst-plot,pst-infixplot}
\usepackage{pst-solides3d}
\usepackage{pstricks-add}

\begin{document}


\psset{unit=2cm} 
\begin{pspicture}[showgrid=true](-1,-1)(4,5)
\psset{ viewpoint=50 -30 -15, lightsrc=50 -10 65, Decran=250}

\psLineIIID[linecolor=black, linestyle=dashed](0,0,0)(0.519615, 0.3, 1.03923) %<-- Does work if \psLineIIID command is here

\defFunction[algebraic]{patch1}(u,v){cos(u)*sin(v)}{sin(u)*sin(v)}{cos(v)}
\defFunction[algebraic]{patch2}(u,v){1.2*cos(u)*sin(v)}{1.2*sin(u)*sin(v)}{1.2*cos(v)}

%	\psLineIIID[linecolor=black](0,0,0)(0.519615, 0.3, 1.03923) %<---- Does NOT work if \psLineIIID command is here
	
	\psSolid[object=surfaceparametree,
		base= 0 pi 6 div pi 6 div pi 4 div,
		ngrid=25 25,
		grid=false,
		action=draw**,
		function=patch1]
		
	\psSolid[object=surfaceparametree,
		base= 0 pi 6 div pi 6 div pi 4 div,
		ngrid=25 25,
		grid=false,
		action=draw**,
		function=patch2]
	
	\psset{linestyle=dashed}
	\psLineIIID[linecolor=black](0,0,0)(0.734847, 0.424264, 0.848528)
	\psLineIIID[linecolor=black](0,0,0)(0.848528, 0., 0.848528)
%	\psLineIIID[linecolor=black](0,0,0)(0.519615, 0.3, 1.03923)  %  <--- Does work if \psLineIIID command is here.
	\psLineIIID[linecolor=black](0,0,0)(0.6, 0., 1.03923)
	\psset{linestyle=solid}
	\axesIIID[arrowscale=1.5](1.2,1.2,1.2)

	
 \end{pspicture}


\end{document}