[Squeak-fr] un premier rapport wonderland

[stéphane ducasse]

renvoie-le peut etre que qq sait. C'est a propos de Wonderland est la  
personne qui l'a code ne le maintient plus (et le code est aussi un peu  
moche).

Stef

On 15 août 04, at 14:26, Remi Sussan wrote:

> En exemple d'un premier "rapport" sur les problemes wonderland, je  
> renvoie
> ici mon courrier de  2003 à la squeak-dev. Non pas pour recevoir une  
> réponse
> (le probleme est assez tordu, j'en conviens, mais fondamental, car il  
> remet
> en question le systeme de hierarchie d'objets de Wonderland et risque,  
> si je
> ne me suis pas trompé et s'il n'y a pas de solution, d'invalider toute
> création un sophistiquée avec ce systeme), mais juste en contribution  
> au
> groupe ! De plus, c'est un exemple d'utilisation un peu complexe de
> Wonderland, en dehors de la fenêtre script, cela peut donc faire  
> office de
> petit tutoriel sur le sujet (mais un tutoriel qui echoue à la fin!)
>
> Remi
> ----- Original Message -----
> From: "Remi Sussan" <rsussan at noos.fr>
> To: "The general-purpose Squeak developers list"
> <squeak-dev at lists.squeakfoundation.org>
> Sent: Wednesday, October 15, 2003 2:23 PM
> Subject: problem with "becomepart" in wonderland
>
>
>> Hello,
>> I'm trying to create complex objects in wonderland (outside the script
>> window). I try to create two simple objects from primitives, then
> associate
>> them in a complex object, and try to scale this complex object. But I  
>> seem
>> to have a problem with the "becomePart" instruction.
>> If I try to write the following code:
>>
>> w_Wonderland new.
>> w makeActorFromVRML:'vrml\boule.wrl' named:'maboule'.
>> (w getNamespace at:'maboule') move:#up.
>> w makeActorFromVRML:'vrml\cylindre.wrl' named:'colonne'.
>> w makeActorNamed:'colonnade'.
>> (w getNamespace at:'maboule') becomeChildOf:(w getNamespace
> at:'colonnade').
>> (w getNamespace at:'colonne') becomeChildOf:(w getNamespace
> at:'colonnade').
>>
>> Then go on the script window, select in the list at the left the  
>> actors
>> "maboule" and "colonne", and specify "become Part" in the pop-up  
>> menu,then
>> go back to the workspace and write:
>>
>> (w getNamespace at:'colonnade') setSize:{0.5. 0.5. 0.5.}
>>  the scaling is working perfectly (image:withoutbecomepart.jpg).
>>
>> But, as I want to do all through an external program, I therefore  
>> write
> the
>> following lines:
>>
>> w_Wonderland new.
>> w makeActorFromVRML:'vrml\boule.wrl' named:'maboule'.
>> (w getNamespace at:'maboule') move:#up.
>> w makeActorFromVRML:'vrml\cylindre.wrl' named:'colonne'.
>> w makeActorNamed:'colonnade'.
>> (w getNamespace at:'maboule') becomeChildOf:(w getNamespace
>> at:'colonnade');becomePart.
>> (w getNamespace at:'colonne') becomeChildOf:(w getNamespace
>> at:'colonnade');becomePart.
>>
>> (w getNamespace at:'colonnade') setSize:{0.5. 0.5. 0.5.}
>>
>> (please note an associated problem. If I try to write :"(w  
>> getNamespace
>> at:'maboule') becomePart" in a single instruction, I have an error:  
>> "key
> not
>> found"; that's why I combine becomeChildOf and BecomePart on a single
> line).
>>
>> After executing this code, a "scaling" occurs, but now, the two simple
>> actors are scaled separately (meaning that the correct distance  
>> between
> the
>> two objects is lost: see image withbecomepart.jpg).
>>
>> If I completely suppress "becomePart", the scaling of the complex  
>> object
>> doesn't occur, of course..
>>
>> How can I correct this strange behavior? By the way, is there  
>> somewhere
> some
>> code using wonderland in an advanced way?
>>
>> thanks!
>> Remi
>>
>>
> <withoutbecomepart.jpg><withbecomepart.jpg>____________________________ 
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