00:47 <JordanBrown> teepee why is that a problem?

00:47 <JordanBrown> Do we not cleanly ignore it?

01:06 <InPhase> JordanBrown: stl has no object sorting. The triangles do not need to be contiguous or anything.

01:07 <InPhase> Well, for manifoldness they do, but stl doesn't even require that. But what I meant to say is contiguous triangles do not need to be adjacent.

02:09 <linext> i read the book on OpenSCAD that came out in 2021

02:10 <linext> https://www.amazon.com/Programming-OpenSCAD-Beginners-3D-Printable-Objects/dp/159327954X/

02:11 <linext> it's part of the Bergen County NJ USA library

03:09 <gbruno> [github] kintel pushed 12 modifications (Add convenience methods addVertex/prependVertex taking Vertex3d) https://github.com/openscad/openscad/commit/3b19741290575794e0bab0aaf5fd142f623dc4bb

03:10 <gbruno> [github] kintel opened pull request #4932 (Add convenience methods addVertex/prependVertex taking Vertex3d) https://github.com/openscad/openscad/pull/4932

05:37 <gbruno> [github] kintel pushed 5 modifications (Removed some unused code) https://github.com/openscad/openscad/commit/973b67f373da3c5dc70efd89b9c31faa9119498d

05:38 <gbruno> [github] kintel opened pull request #4933 (WIP: PolySet Refactor) https://github.com/openscad/openscad/pull/4933

05:38 <gbruno> [github] kintel edited issue #4851 (PolySet needs cleanup) https://github.com/openscad/openscad/issues/4851

05:41 <kintel> linext Hope you liked it! It's mostly targeting beginners or young people, so it was probably a bit basic for you :)

12:14 <juri_> wait, you get books? ;)

12:23 <guso78k> a copy of this book is also waiting in my shelf ...

15:18 <phryk> there was a pattern to create geometry only if the file its defined in is directly loaded, anyone have an idea what i'm talking about?^^

15:19 <phryk> use-case is having .scad files that define a single thing, which can be seen when loading the file directly into openscad so i can work on it, but which can also be loaded into a bigger project and used as part in there, without the import already instantiating the geometry at the origin.

16:41 <teepee> phryk: that is the behavor with use<>

16:44 <phryk> great, thanks teepee :)

21:22 <linext> i think you should put mirror_copy() into the code base

21:22 <linext> https://www.reddit.com/r/openscad/comments/mlgm81/re_copy_mirror/

22:28 <JordanBrown> InPhase yes, you would need to identify disjoint objects topologically, rather than through the structure of the file.

22:29 <JordanBrown> My initial thought was that that seemed readily do-able, but now I'm realizing that a hollow object would be split into two solid objects because the inside and the outside wouldn't be touching and so wouldn't be considered part of the same object.

23:28 <linext> the intro book by kintel is good. i brought it to a makerspace and showed some beginners. they were able to follow along