[pstricks] computed normal in \ThreeDput

[Manfred Braun]

Dear Herbert,
Thanks for your hint. It seems that I first have to update my pstricks
installation. The command \define at key is recognized as an undefined control
sequence. Is it defined within that keyval package?
Best regards, Manfred

-----Ursprüngliche Nachricht-----
Von: pstricks-bounces at tug.org [mailto:pstricks-bounces at tug.org] Im Auftrag
von Herbert Voss
Gesendet: Donnerstag, 27. Oktober 2005 15:44
An: pstricks at tug.org
Betreff: Re: [pstricks] computed normal in \ThreeDput

Manfred Braun wrote:

> Is there a possibility to specify a “computed” normal for the 
>  \ThreeDput command in pst-3d? What I mean is something like
> 
>   \ThreeDput[normal={30 cos} 0 {30 sin}](0,0,0){(some graphics)}
> 
> (which doesn’t work), instead of
> 
>   \ThreeDput[normal=0.866 0 0.5](0,0,0){(some graphics)}

\documentclass{article}

\usepackage{pst-3d}
\makeatletter
\define at key[psset]{pst-3d}{normal}{\def\psk at normal{#1}}
\makeatother
\begin{document}

  \ThreeDput[normal={30 cos} 0 {30 sin}](0,0,0){(some graphics)}

\end{document}

now "normal" cannot have values with a dimension

Herbert