[pstricks] trouble with postscript stack

[Manfred Braun]

Hi Jon,

apparently it is the space in  (u, v)  that makes the trouble -- I don't know why.  With  (u,v)  both versions work.

Manfred

On 12.10.2012, at 13:39, Jon Joseph wrote:

> In the following code I use two definitions of the parametric function.  The only thing I change is the order of the constant multiplier. One works and one generates nonsense.  Is this a bug or something I don't understand about the ps stack?  Thanks. 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-eucl}
> \usepackage{pst-fun, pst-coil}
> \usepackage{pst-solides3d}
> 
> 
> 
> \begin{document}
> 
> \begin{pspicture}(-5,5)(5,5)
> 	\psset{viewpoint=20 5 15, Decran=25, lightsrc=viewpoint}
> 	
> 	\defFunction{cone}(u,v) {v Cos 3 mul }{v Sin 2 mul }{u}% <---------------------  Works
> 	%\defFunction{cone}(u, v){3 v Cos mul}{2 v Sin mul}{u}%  <------------------------  Doesn't work
> 	
> 	\psSolid[object=surfaceparametree,
> 		 base=-2 2 0 2 pi mul, 
> 		 fillcolor=yellow!50, 
> 		 incolor=green!50,
> 		 function=cone, 
> 		 linewidth=0.5\pslinewidth, 
> 		 ngrid=25 40]
> \end{pspicture}
> 
> \end{document}
> 
> 
> _______________________________________________
> PSTricks mailing list
> PSTricks at tug.org
> http://tug.org/mailman/listinfo/pstricks
> archive: http://www.tug.org/pipermail/pstricks/
>