01:03 <gbruno> [github] kintel pushed 1 modifications (Use prebuilt manifold on macOS) https://github.com/openscad/openscad/commit/70d4a4140d256ca9e8af1c4e0b7b5075161611eb

01:04 <gbruno> [github] kintel opened pull request #5481 (Use prebuilt manifold on macOS) https://github.com/openscad/openscad/pull/5481

01:05 <gbruno> [github] kintel closed pull request #5481 (Use prebuilt manifold on macOS) https://github.com/openscad/openscad/pull/5481

01:05 <gbruno> [github] kintel pushed 1 modifications (Use prebuilt manifold on macOS (#5481)) https://github.com/openscad/openscad/commit/a64a1b0b8015d0c76d76d9e4030f00c485761ed0

01:41 <Guest72> I want to make a roller coaster with openscad, is it possible?

01:42 <teepee> printable toy, yes, real one, probably not

01:42 <Guest72> of couse, I try to make a toy.

01:43 <Guest72> as I possible, after design my roller coaster, I want to print out a paper and try to make it.

01:43 <teepee> paper?

01:46 <Guest72> after print the genereated scad.

01:53 <teepee> hmm, I was expecting a 3d model that will be printed

01:54 <teepee> producing 2d prints is not exactly a strength of OpenSCAD as it requires solid geometry (= all polygons are closed)

01:57 <Guest72> I see, but I try to make the printed model for attached to my other products, so I thought it should be made as light as possible.

01:59 <teepee> makes sense, I think there is some special light filament

02:55 <gbruno> [github] kintel opened issue #5482 (linear_extrude yields non-manifold PolySet in cases where lots of touching polygons are unioned) https://github.com/openscad/openscad/issues/5482

03:01 <gbruno> [github] kintel edited issue #5308 (Support externally built Manifold) https://github.com/openscad/openscad/issues/5308

03:04 <gbruno> [github] kintel edited issue #5308 (Support externally built Manifold) https://github.com/openscad/openscad/issues/5308

03:04 <gbruno> [github] kintel edited issue #5308 (Support externally built Manifold) https://github.com/openscad/openscad/issues/5308

03:45 <gbruno> [github] kintel pushed 1 modifications (Enable Manifold's triangulator by default) https://github.com/openscad/openscad/commit/4ad9c4df1741b668ed64323d9214088de8ef99fd

03:45 <gbruno> [github] kintel opened pull request #5483 (Enable Manifold's triangulator by default) https://github.com/openscad/openscad/pull/5483

03:45 <gbruno> [github] kintel edited issue #4825 (Make manifold integration release ready) https://github.com/openscad/openscad/issues/4825

04:10 <kintel> The Linux Ci build failures seem pretty permanent now. Perhaps GitHub always chooses a broken mirror.. Anyway, I'm retorting to forge-merge PR's where the only failures are the Linux runners for now. Looks like ubuntu-24.04 still works though, so we get some Linux testing.

08:27 <pca006132> wondering why is the ubuntu CI pulling things from opensuse...

08:28 <pca006132> (and xubuntu stuff)

11:26 <teepee> pca006132: because OBS is a nice free platform to build packages for a number of different distros and distro versions

11:27 <teepee> basically they allow people to use their build infrastructure

11:30 <teepee> oh, also not *just* build but also public repository

12:18 <guso78k> In UserModule.h, I see :  std::shared_ptr<AbstractNode> instantiate(const std::shared_ptr<const Context>& defining_context, const ModuleInstantiation *inst, const std::shared_ptr<const Context>& context) const override;

12:19 <guso78k> can anybody help to to understand the difference of the 2 contexts suplied, and where to get them from ?

12:56 <pca006132> My guess would be the defining contex is the file local context, and the second context is the execution stack?

12:57 <pca006132> too tired to check where to get them from though...

13:44 <gbruno> [github] kintel closed pull request #5483 (Enable Manifold's triangulator by default) https://github.com/openscad/openscad/pull/5483

13:44 <gbruno> [github] kintel pushed 1 modifications (Enable Manifold's triangulator by default (#5483)) https://github.com/openscad/openscad/commit/8fb8c4865494bb536c0299fbfeb912109601df79

15:49 <gbruno> [github] kintel closed issue #5482 (linear_extrude yields non-manifold PolySet in cases where lots of touching polygons are unioned) https://github.com/openscad/openscad/issues/5482

16:12 <gbruno> [github] kintel pushed 9 additions 29 modifications 3 removals (Polygon2d-related refactoring Added goldens for even/odd polygon test Added overlapping hole test Use 'positive' field when constructing polygon from source Add TODO notes Rename createGeometryList() to createPolygonList() Added some comments even-odd => corner-cases more fill2 tests Add more comments Add Clipper2 submodule Remove old Clipper code Build Clipper2 Move mimalloc build t

20:33 <teepee> Functions... https://github.com/openscad/openscad-advent-calendar-2024/blob/main/TutorialPart06/TutorialPart06.scad - what else could be said about those?

20:49 <JordanBrown1> teepee want me to email you review comments?

20:50 <teepee> sure, why not

21:12 <J24k96> maybe some simple function add(a,b)=a+b;

21:14 <JordanBrown1> I was thinking inches-to-millimeters.

21:15 <J24k96> that would make more sense .. and can also show how  ```cube (inch(3));```  would be usefull

21:34 <JordanBrown1> sent

21:35 <JordanBrown1> The big question is how deep you want to get. It is as you know a potentially very deep subject.

22:25 <teepee> well, it's an advent calendar and the door opens in 90 minutes, so it's not going to be an exhaustive introduction

22:25 <teepee> also there's 9 more parts to go

22:26 <teepee> so compromises it is :)

22:29 <teepee> heh, I suppose scopes are out of scope ;-)

22:29 <teepee> at least for today

22:53 <teepee> inch would be a can of worms due to units/no-units, so it's just a simple rectangle aspect ratio for now

22:53 <teepee> otherwise updated

22:54 <teepee> nothing of the more complicated stuff, that's maybe something for next week