@jin-kim Welcome! I don't know of anyone porting the JSCAD modeling library to Java, but it should be possible. A few years back, someone ported V1 to C++ but I don't have the link. And very recently, someone has ported the JSCAD modeling library to C# , and there will be an announcement shortly.

@gilboonet Well, actually I figured out! I was using earcut.js to create indice, and with little bit of touch with the result of CAG union/subtract/intersect it worked well. Thanks for the reply.

@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. [image: 1648412375738-capture-d-%C3%A9cran-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()

@z3dev hi, yes, it can be found in Apple App Store if you search for "Rukkou". Or use this link directly on a Mac OS. Do let me know your feedbacks

For those wondering, @platypii is a new member of the development team. He’s already put together some super nice fixes. In addition, he never sleeps so things are moving along at light speed. So, please let him know if there’s something missing from JSCAD.

@mark-hahn super thanks! There’s still a little wizardry going on here. But I’ll try this with VSCODE, and then ask a few more questions.

@gilboonet that is excellent, it may be possible later on to integrate that one with jscad or at least take your experience for ideas how to improve 2D use-cases in jscad.

@gilboonet yes, specification for sort functions is to return zero if a==b return neg or positive number depending if u want to sort ASC or DESC

@gilboonet I finally take advantage of geometries id and class preservation, and created a small js node script that creates a group for all paths having the same class, and at the same time I solve another annoyance that was the impossibility to search by numbers by creating id. That's very nice.

@z3dev You can also change the model, Venus has 1000 triangles and takes 30 sec. on my laptop to unfold (ubuntu with Firefox).

@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 Sadly, lines already have a color (red for cuts, maroon for mountain fold and green for valley fold). [image: 1642928915791-capture-d-%C3%A9cran-de-2022-01-23-10-07-15.png]