@z3dev got my first email from this user group 🙂 and daily digest. That is great news that you got this working.

@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 this is one of many thing we would like to implement, but it is not implemented, or even specified as a possible future feature.

Current 3d engine is regl, and I am working on interchangeable support for Three.js and Babylon.js.

regl has slowed down with development but Three.js and Babylon.js are very much active
Getting info what object is clicked or mouse over is easy in Three.js and Babylon , but for regl I am not sure (it may or may not be easy to do).

You likely want to use jacad to generate geometries, give them some identifiers, interact with them and then upon interaction change the model with performance in mind by updating only things that changed.

This is something we could colaborate on, but it is not something that can be simply implemented as part of jscad script runner. Because the current workflow for jscad is:

make a script expose getParameterDefinitions - jscad can generate params form expose main method - jscad will call it with parameters and display result
As you can see there is no concept of partial interactions or reactive changes, it is more like a commandline program that you write, and jscad calls to display it's output in 3d (and provide export option)

there are several building blocks that make this combo getParameterDefinitions + main work, with proper separation of those building blocks users would be allow to create much more than just scripts that produce 3d geometry. But such efforts take time, and we are low on man-power.

One such reusable block I started creating is code editor https://github.com/hrgdavor/jsx6/tree/main/libs/editor-monaco although there are nice code editors, they are not too easy to use or combine with JS projects (takes too much knowledge) so I am aiming to create more friendly wrappers. Each editor is stuck with their own cool build process and tooling that was popular at the time of the project start.

I am also improving my skills with web workers, and babel transformations to provide building blocks for script execution with proper line numbers in stack traces and built-in browser's debugger integration.

so, slowly something is comming along ... slowly...

@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 ...

@cncandi It looks like you made a copy of the JSCAD website. That's really customize to support drag-n-drop, loading projects, URL options, etc. It's probably not what you really want.

Take a look at the websites and frameworks mentioned here.

https://openjscad.xyz/dokuwiki/doku.php?id=en:user_guide_help

Let us know if you have any more questions.

@Hermann-SW Good questions...

The website has a little Perl script that does the download of the requested file, and checks the content. This does two things; only know file types are allowed, and this goes around CORS.

https://github.com/jscad/OpenJSCAD.org/blob/master/packages/web/remote.pl

I guess that supporting data URL would be possible, but there would have to be some similar checks for data type, etc.

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

@David-Bolt The latest release has a change which retains the webworker thread. So, debugging should be easier now.

@Ion-0 it was great to meet up. I'm totally impressed with the amount of effort and engineering that went into the web application. Really cool stuff!

Let us know how JSCD needs to improve to assist others.

あなたが参加する機会を得たら、知らせてください。あなたのためのチケットを持っています!

@david-bolt one suggestion from what i've tried could be to set the camera position for regular perspective camera further away as an orthographic camera is just a perspective camera at infinity

Yes, this becomes quite limiting if one has to have users download, unzip, and drag & drop. Kind of defeats the purpose of projects. Also you'd have to deal with updates.
Very cumbersome for non-tech users.
It would be nice if you could include directories or even zip files in the URL.

@platypii Thank you for this investigation. I remember that I tried to get JSCAD to union those groups but then it loses colors. I use Wings 3d to colorize my models, and it does not split them into separate objects (on my screenshot I have only one geometry), only materials are separated into groups.
Capture d’écran du 2022-06-14 10-11-33.png

Capture d’écran du 2022-06-14 10-29-42.png

I splitted the model into 3 geometries and then exported it to .obj and the difference is that it contains 3 lines starting with "o " that defines start of an object. Maybe for the moment JSCAD translate lines starting with "g " like "o ".