@z3dev Bonjour,
j'ai bien réussi à créer cette forme avec les "paths / expand / offset".
mais cela me pose beaucoup de problèmes pour la suite, à savoir, le positionnement des perçages. En effet c'est compliqué car l'angle de pliage peut varier en fonction des utilisateurs.

J'ai trouvé une fonction OPENSCAD qui effectue exactement ce que je souhaite. Est-il possible de mettre cela en place sur JSCAD
https://www.youtube.com/watch?v=3xTjyYKtv4A
Je n'arrive pas bien à comprendre la logique de son code qui est "en vrac" dans la description de la vidéo.

Je vous remercie pour le temps que vous consacrerez à ma demande.

@Hermann-SW Thanks for all the super insights to your designs. It has been great to see you continue and improve the designs, and finally have a great base for more designs.

I haven't seen anyone compare JSCAD to OpenSCAD viewers. We continue to improve the viewer (and modeling library) so it's really nice to have some complements. 😃

We have had some recent performance improvements, based on @platypii and @briansturgill changes. And we have more planned ahead.

@hrgdavor I tried that with openjscad.xyz and it did not work. But it does work with locally hosted demo.html !
Thanks, until now I had browser console open right, editor in middle and only half of 3D view left. After drag and drop, I can close the editor and see new graphs whenever I run node.tetra.js to produce a different x.jscad. So much easier to work now ...

I implemented optional JSCAD output for planar graph playground "node.tetra.js", details here:
https://forums.raspberrypi.com/viewtopic.php?p=2030546#p2030546

Until now I played with C20 hand edited for JSCAD, this is newly created C60 fullerene with 60 vertices and 90 edges:
https://www.openjscad.xyz/?uri=https://stamm-wilbrandt.de/en/forum/JSCAD.C60_vtype.js

More vertices and edges than for C20, but design regeneration still done in less than 10 seconds on Intel it Linux Chrome!
https://forums.raspberrypi.com/download/file.php?id=56198

Forgot to post the "answer" link for viewing in browser:
https://openjscad.xyz/?uri=https://stamm-wilbrandt.de/en/forum/A.JSCAD.vertex_edge2.sp_tria.js

@ajw1970 super!

I'm interested in the final application. Why did you want to use Babylon for rendering? And do you further plans to create some online designs?

@z3dev ok, thank you very much for your feedback

@hrgdavor Thank you, I will try from this demo.html file. I already used that file at early stage of V2 to take snapshots of a scene to create an animation, but I'm not sure I understood it all.

I changed my obj importer code to make it work with obj without groups. Now I can start to colorize my models by code. And there's one nice thing about that : I can use that faces coloring to store a volume's unfold pattern.
Capture d’écran de 2022-03-26 21-48-08.png

@udif great question!

There are three main objects; geom3, geom2, and path2. You can create empty versions of these…

const a = geom3.create() const b = geom2.create() const c = path2.create()

@gilboonet that is definitely something worth considering either as part of jscad or an addon library. I think we will have better idea after I have some time to cooperate with you on your project. It is definitely an interesting use-case, and a real project will give much needed insight on how to proceed with it.

@z3dev the .json

this will soon be fixed https://github.com/jscad/OpenJSCAD.org/issues/935

@z3dev Thanks a lot, it is always helpful to understand the reason of specific behaviors. My design has one path for the outline that will be cut, and lines for the folds. To remove the black fill I can try to turn the path to a polygon.

@gilboonet excellent!

You are the super user!

@hrgdavor yes, the method I used was what was available but any other could replace it. The purpose is to get data from the embedded jscad script and create a pdf file from it that can then be downloaded or directly viewed into the browser.

@z3dev That's cool designs. Maybe you can add links to open them in JSCAD like

minion googles

Which reminds me that I have such links on several places but with old site that I need to replace.