Translation & rotation?

General discussion about Animator for SketchUp

Translation & rotation?

Postby pilou » Thu Sep 27, 2018 3:58 pm

We can't have in the same time Translation + Rotation ?

not_trans_rot.jpg

GIF_not_trans_rot.gif


I don't want this : i want same rotation, same direction of translation
but with bottom move forward, top backward so a sort of gliding in rotation!
the same but in the same time! :)
Seems Screw don't make that but maybe i miss something?
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Re: Translation & rotation?

Postby fredo6 » Fri Sep 28, 2018 2:40 am

pilou wrote:We can't have in the same time Translation + Rotation ?

not_trans_rot.jpg

GIF_not_trans_rot.gif


I don't want this : i want same rotation, same direction of translation
but with bottom move forward, top backward so a sort of gliding in rotation!
the same but in the same time! :)
Seems Screw don't make that but maybe i miss something?

Can you attach the model. I don't understand what you want.

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Re: Translation & rotation?

Postby pilou » Fri Sep 28, 2018 8:35 am

Sur la vidéo du post précédent, on voit d'abord un déplacement puis ensuite une rotation!
Je voudrais les deux en même temps! :)
C'est pour cela que j'avais essayé de les "superposer" dans la barre de temps!

C'est ce que fait le Screw (une rotation en déplacement) mais pour mon cas la rotation n'est pas "placée" comme il faut par rapport au déplacement!
Il y a 3 façons de positionner le plan de rotation de l'axe de rotation sur l'axe de translation!
Le "Screw" (hélice) en est une! Il en reste 2 autres! :) Mon cas est celui du milieu! ;)


Problème connexe, pour tout dire je voudrais reproduire ceci! (là il n'y a pas de translation)
Il y a deux rotations en même temps.
On voit très bien que les "2 triangles en Papillon" du haut s'ouvrent et se ferment (1ère rotation) tout en subissant une 2ème rotation générale par rapport au point d'attache!
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Re: Translation & rotation?

Postby fredo6 » Fri Sep 28, 2018 10:57 am

Pilou,

Strange. Maybe you did not create the rotation correctly.



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Re: Translation & rotation?

Postby pilou » Fri Sep 28, 2018 11:47 am

OK for the first problem! :) (i did't take the good position axis) :oops:
trans_rot.jpg

I have now the 2 movements at the same place! :)

And for rotation of rotations I suppose that is possible ?



And a rotation along a path ?
Your video show a translation along a path...



Edit : I suppose yes :)
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Re: Translation & rotation?

Postby pilou » Mon Oct 01, 2018 1:49 pm

OK, it was so simple! :enlight:

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Re: Translation & rotation?

Postby fredo6 » Tue Oct 02, 2018 6:28 am

pilou wrote:OK, it was so simple! :enlight:


Image link seems to be invalid....
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Re: Translation & rotation?

Postby pilou » Tue Oct 02, 2018 8:07 am

Works fine for me ! Maybe a momently server's disturb ?
Enlarge of the forum works fine also!
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Re: Translation & rotation?

Postby pilou » Tue Oct 02, 2018 8:11 am

for Fredo ;)
Maybe I have made some conceptual errors!

- Animator ne commence que si on sauvegarde le fichier au départ! (même vide)
- Il vaut mieux nommer les objets!
- Animator ne "crée pas d'"Objet" ! Il faut donc tout préparer avant!
- On n'est pas forcer de construire à l'origine, mais c'est plus pratique pour s'y retrouver!



On va donc simplement animer le "Groupe", puis l'objet "B"
Et on fera démarrer les 2 animations en même temps!





Presser la Barre bleu des mers du Sud "New Movement"
ouvre cette Barre d'Outils des Mouvements "appliquables" aux objets que l'on va sélectionner!
























- On prend la Rotation générale - La Case "N" est cliquée!
- On on positionne le Rapporteur à la souris!
- On prend arbitrairement 50° - Vérification à la fin.



Validation de la Séquence des deux demi-animations jusqu'à 45°


On obtient deux Séquences dans la Ligne de Temps!




La manipulation des "cases" est très puissantes!
Quand on clique dessus on a la boîte de Paramètres qui s'ouvre
et surtout on peut les mettre où l'on veut dans le timing! :)





Vérification...


En fait cela va très vite à faire!   ;)
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Last edited by pilou on Tue Oct 02, 2018 10:01 am, edited 1 time in total.
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Re: Translation & rotation?

Postby pilou » Tue Oct 02, 2018 8:43 am

Why when i exit temporarily of Animator
- Copy Move the Group (animated)
- Come Back Animator
Run animation

The 2 groups of components don't make the same ?
Rotation of Component A is not taken in compt!
(All is local axe - tested also with Copy Move made before call Animator
and also tested with General axe)

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Re: Translation & rotation?

Postby pilou » Thu Oct 04, 2018 9:38 am

In fact I don't success with Animator! :(
But seems that must be possible but how ?




With MSPhysics yes! ;)



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Re: Translation & rotation?

Postby fredo6 » Thu Oct 04, 2018 12:16 pm

pilou wrote:In fact I don't success with Animator! :(
But seems that must be possible but how ?

Actually, this is more because the rotation of the half-panels is not linear, but a mathematical function.

This is the same when you try to animate an excavator, where the rotation of arms and the translation of the actuator follow a mathematical relationship which is not linear.

In general, this must be addressed with kinematic constraints (as in MS Physics). In Animator, there is only some predefined easing to customize the speeds of movements. This would be possible with custom easing.

Below is an approximation with polynomial easing, but the mathematical curve is more specific (in Sinus function actually)

Animator - Pilou Folded door.gif


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Re: Translation & rotation?

Postby pilou » Thu Oct 04, 2018 1:44 pm

Quasi perfect! ;)
Maybe for the next release ?

GIF_fredo_pliant.gif
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