01:40 <TylerTork> Somehow I've initiated an infinite loop -- or at least a very long loop -- it's been sitting there 45 minutes. Is there no way to break out?

03:45 <Guest40> / Define the pole

03:45 <Guest40> cylinder(h = 100, r1 = 2, r2 = 2);

03:45 <Guest40> translate([0, 0, 100])

03:45 <Guest40> / Define the light fixture

03:45 <Guest40> cylinder(h = 5, r1 = 5, r2 = 0);

03:45 <Guest40> / Render the model

03:45 <Guest40> can you go through this code

05:13 <J24k45> guest40: ?

09:12 <jfw01> I seem to have had an attach of something, in response to events on github, and there are two trivially different new cut-downs there.

09:16 <jfw01> In case you-all are interested in ungrounded theorising, I assume that GCAL contains an oct-tree or some morally equivalent data-structure, and is assuming that some feature is consistent in which part of the data-structure it attaches too during scaling, but this is false due to floating-point error.  Take all such assumptions with a small

09:16 <jfw01> salt-mine, and I will tiptoe out now . . .

09:16 <jfw01> PS I adjusted some constants until I stopped triggering the error, and went on with designing my project.

15:04 <kintel> pca006132 I got back into testing the Manifold Triangulator, and reproduced my old bug: https://github.com/elalish/manifold/issues/790

15:05 <kintel> OpenSCAD use-case: triangulate the end caps of linear_extrude() to be able to feed proper manifolds into Manifold

15:07 <gbruno> [github] kintel closed pull request #5080 (backport linear_extrude with vector to upstream, fixes #5079) https://github.com/openscad/openscad/pull/5080

15:07 <gbruno> [github] kintel closed issue #5079 (Linear_extrude with 3d vector as height yields inapropriate result) https://github.com/openscad/openscad/issues/5079

15:07 <gbruno> [github] kintel pushed 22 modifications (backport linear_extrude with vector to upstream, fixes #5079 (#5080) Co-authored-by: Guenther Sohler <guenther.sohler@photeon.com>) https://github.com/openscad/openscad/commit/cc546b31bd6e78c2d16dac3cc30d49c621959a71

17:16 <gbruno> [github] kintel edited issue #4825 (Move manifold out of experimental) https://github.com/openscad/openscad/issues/4825

17:17 <kintel> What do people think about deprecating AMF import/export? It's annoying to keep dragging that code along..

17:17 <gbruno> [github] kintel edited issue #4825 (Move manifold out of experimental) https://github.com/openscad/openscad/issues/4825

17:38 <J24k45> blender can't export 3mf but else amf is probably not much used

17:40 <J24k45> AMF has native support for color, materials, lattices, and constellations.  So when OpenScad can export colors you want another file format that is capable and obj is propertary

17:44 <J24k45> most slicer can read AMF

17:46 <J24k45> Also when openscad can export multi material or just multiple  objects  - stl will no longer be useful.

17:54 <J24k45> kintel actually i am thinking of using amf instead of 3mf as  slicer always treat 3mf as their project files and also objects are all named "openSCAD model" while

17:55 <J24k45> AMF https://imgur.com/a/iakIjcs  keeps the filename and makes it clear when importing multiple model parts

17:55 <J24k45> microsoft 3d tools can't open AMF btw

17:57 <kintel> J24k45 Is there something AMF can do that 3MF cannot?

17:58 <kintel> I don't expect anyone to keep adding features to our AMF I/O, so at best we're probably stuck with what we have.

17:58 <J24k45> AMF is not a container it is XML based so this restriction makes it more useful in regards how other program use it

18:00 <J24k45> Kintel in theory AMF can https://en.wikipedia.org/wiki/Additive_manufacturing_file_format#Optional_curved_triangles  but this is nothing openSCAD will use

18:02 <J24k45> interestingly  the AMF holds the openSCAD version that was used (3mf don't)

18:18 <gbruno> [github] kintel edited issue #5046 (Bypass PolySetBuilder for rotate- and linear extrude) https://github.com/openscad/openscad/issues/5046

18:18 <gbruno> [github] kintel edited issue #5046 (Bypass PolySetBuilder for rotate- and linear extrude) https://github.com/openscad/openscad/issues/5046

18:20 <gbruno> [github] kintel edited issue #4825 (Move manifold out of experimental) https://github.com/openscad/openscad/issues/4825

18:20 <gbruno> [github] kintel edited issue #4825 (Move manifold out of experimental) https://github.com/openscad/openscad/issues/4825

18:21 <kintel> J24k45 Can you open a bug for that? I'm not too familiar with 3MF yet..

18:23 <J24k45> kintel i don't think it is a bug  the AMF just has a meta tag » <metadata type="producer">OpenSCAD 2024.03.28 (git f2d4c1b62)</metadata>«  and 3mf don't  - i don't think this is of any use

18:27 <J24k45> the 3mf would require to make a "metadata" folder and then put a file with that info in - and no program will read that

18:31 <J24k45> or it can be as tag in the 3dmodel.model file

18:37 <J24k45> kintel but as a feature request it would make sense to add meta data to 3mf like "license" "designer" "title" "description" or thumbnails https://imgur.com/a/RCCXRBx  makerworld uses that to fill the 3mf with a lot of data to show when the project is opened in BS(bambu studio slicer)

18:37 <kintel> Looks like metadata is well-defined in the spec: https://github.com/3MFConsortium/spec_core/blob/master/3MF%20Core%20Specification.md#341-metadata

18:38 <J24k45> yes i am just not sure how to conveniently fill this when saving a 3mf

18:39 <gbruno> [github] kintel edited issue #4825 (Move manifold out of experimental) https://github.com/openscad/openscad/issues/4825

18:39 <kintel> "How" is up to the developer doing it - the feature request only needs to ask for it :)

18:40 <J24k45> either we have the data in the script that is parsed - or it is saved in openscad to be inserted - you sure don't want to fill this out everytime  (except modification date )

18:40 <J24k45> I ll put a feature request in

18:42 <kintel> cool!

18:42 <kintel> If you have any other 3mf issues, feel free to open more FRs or bugs. I have to do some work in that domain related to Manifold

18:43 <gbruno> [github] kintel pushed 3 modifications (Minor refactoring) https://github.com/openscad/openscad/commit/fdce4a6505982443b078ad0752c9f6483abeccbc

18:44 <gbruno> [github] kintel opened pull request #5088 (Split 3MF implementation into separate files per API version) https://github.com/openscad/openscad/pull/5088

18:56 <gbruno> [github] UBaer21 opened issue #5089 (Add / change Metadata for 3mf export) https://github.com/openscad/openscad/issues/5089

18:56 <J24k45> kintel  i guess multi object and color export is not a 3mf feature but  rooted in openscads core system

18:58 <J24k45> and is already covered in https://github.com/openscad/openscad/issues/1608

23:40 <gbruno> [github] chrysn edited pull request #5038 (SVG import: Add normalize_coordinates option) https://github.com/openscad/openscad/pull/5038