[pstricks] Re : Fwd: PSTricks tip about 3D Rotation

[Manuel Luque]

Leon Free <leon.free at free.fr> wrote :

i>s what you want to do something like this ?
>http://leon.free.free.fr/mco_anim.pdf
>(it requires acrobat reader for playing the animation)

Génial ! Please, can you explain your method? Do you use PStricks?(I think the answer is positive)
Thank you.

Manuel

 

 


 

 

-----E-mail d'origine-----
De : Leon Free <leon.free at free.fr>
A : Graphics with PSTricks <pstricks at tug.org>; pedro.sacramento <pedro.sacramento at gmail.com>
Envoyé le : Mercredi, 8 Juin 2011 9:46
Sujet : Re: [pstricks] Fwd: PSTricks tip about 3D Rotation


pedro,
is what you want to do something like this ?
http://leon.free.free.fr/mco_anim.pdf
(it requires acrobat reader for playing the animation)


Le 07/06/2011 20:09, Herbert Voss a écrit :
> -------- Original-Nachricht --------
> Betreff: PSTricks tip about 3D Rotation
> Datum: Tue, 7 Jun 2011 09:34:28 -0300
> Von: Pedro Sacramento <pedro.sacramento at gmail.com>
> An: pedro sacramento <pedro.sacramento at gmail.com>
> 
> Hello,
> 
> I'm a new *pst-solides3d* user and I've been trying to use it to make an
> interactive 3D geometry like the sample above (the attached zip has the
> complete set of images too, if you want to see):
> http://www.yofla.com/flash/3d-rotate/classic/examples.php?exampleId=1
> 
> I'll be really thankfull if you can help me with a tip about manipulating
> the geometry in 3D space, I still wasn't able to figure it out, even though
> I'm making many tests with the manual.
> 
> And my question is:  *I already know how to rotate the 3D object around Z.
> But how can I move the camera from the top to the bottom of the image,
> always looking to the origin of the graph and keeping constant distance
> from
> the origin? I believe that a multido procedure can easily tackle it, to
> generate all the 272 images.*
> 
>  \begin{pspicture}[RotX=*0*,RotY=*0*,RotZ=*$z*](-6,-8)(7,8)
>  \psSurface[ngrid=.25 .25,incolor=yellow,
>  linewidth=0.5\pslinewidth,
>  algebraic,hue=0 1](-4,-4)(4,4){%
>  ((y^2)-(x^2))/4 }
>  \end{pspicture}
> 
> Best regards and thaks a lot,
> 
> *P.S.: As far as I can see, It's basically a 16x17 matrix of images where Z
> rotation increases 22,5º (360º/16 steps) degrees as j increases. Also the
> camera moves downwards as i increases (always looking to the origin of the
> graph). It must start looking the object from the top and then move down
> until looking to the bottom of it. The camera keeps in constant distance
> from origin while moving from top to bottom))*
> 
> 
> 
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