[pstricks] PS operations inside multido

[Mikel Catania]

Thanks so much, that's what I was looking for. So easy in fact :) Thanks,

Mikel

2008/12/16 Marc GRILLET <marc.grillet at neuf.fr>

>  Hi,
>
>     \pstThreeDLine(0,0,0)(\rA*\space* cos,\rA*\space* sin,1)}
>
>  should work ;)
> Bye
>
> Hi all,
>
> I was trying to automatize some drawings using the multido package and
> PostScript operations (mul, add...). Let's suppose I want to draw a 3D
> vector rotating around the z-axis. The following works fine:
>
> \documentclass[a4paper,10pt]{article}
>
> \usepackage{pstricks}
> \usepackage{pst-3dplot}
>
> \begin{document}
> \begin{pspicture}(-4,-4)(4,4)
> \psset{Alpha=60,Beta=10}
> \pstThreeDCoor
> \pstThreeDLine(0,0,0)(0 cos,0 sin,1)
> \pstThreeDLine(0,0,0)(45 cos,45 sin,1)
> \pstThreeDLine(0,0,0)(90 cos,90 sin,1)
> \pstThreeDLine(0,0,0)(135 cos,135 sin,1)
> \pstThreeDLine(0,0,0)(180 cos,180 sin,1)
> \pstThreeDLine(0,0,0)(225 cos,225 sin,1)
> \pstThreeDLine(0,0,0)(270 cos,270 sin,1)
> \pstThreeDLine(0,0,0)(315 cos,315 sin,1)
> \end{pspicture}
> \end{document}
>
> But when trying to use multido, the sine and cosine commands seem to not
> work, nothing appears on the output (except the axes):
>
> \documentclass[a4paper,10pt]{article}
>
> \usepackage{pstricks}
> \usepackage{pst-3dplot}
> \usepackage{multido}
>
> \begin{document}
> \begin{pspicture}(-4,-4)(4,4)
> \psset{Alpha=60,Beta=10}
> \pstThreeDCoor
> \multido{\rA=0.00+45.00}{8}{%
>     \pstThreeDLine(0,0,0)(\rA cos,\rA sin,1)}
> \end{pspicture}
> \end{document}
>
> Is there any way to get this working? Why doesn't multido perform the
> operations?
>
> Mikel
>
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