teepee changed the topic of #openscad to: OpenSCAD - The Programmers Solid 3D CAD Modeller | This channel is logged! | Website: http://www.openscad.org/ | FAQ: https://goo.gl/pcT7y3 | Request features / report bugs: https://goo.gl/lj0JRI | Tutorial: https://bit.ly/37P6z0B | Books: https://bit.ly/3xlLcQq | FOSDEM 2020: https://bit.ly/35xZGy6 | Logs: https://bit.ly/32MfbH5
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<gbruno> [github] CrashCash opened issue #4921 (Emits "PulseAudioService: pa_context_connect() failed" to stderr every 30 sec) https://github.com/openscad/openscad/issues/4921
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<phryk> anybody got a nice pattern on hand to use the same geometry either with a union() or difference() depending on a boolean that *doesn't* have me write the same geometry code twice or creating a new module for that geometry?
<J24k93> either use a library or just import an SVG ..  not so difficult .. the SCADvent23 had a voronoi pattern
<phryk> import… an svg? i want to design in openscad, not inkscape^^
<J24k93> You said you don't want to create a module
<phryk> not another one for this specific geometry, if possible.
<J24k93> and there are a lot of pattern as svg available.
<J24k93> just make a grid and use children
<phryk> not at all what i'm looking for
<Scopeuk> I don't believe there is an option aside from creating a module for the geometry or a module which wraps the difference/union conditional using children to pull in the geometry
<phryk> J24k93: not the kind of pattern i'm talking about *at all*.
<phryk> Scopeuk: aye, thought so, but thank you for confirming.
<J24k93> maybe you need to add more context to your questions
<phryk> J24k93: I did. your patterns don't apply at all to conditionally applying different boolean operations. :P
<J24k93> you can use if conditionals in boolean operation and so switch between union or differences
<phryk> nvm J24k93
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<pca006132> I think you need first class module for that, which is still a PR
<pca006132> we have no ways to manipulate geometries
<pca006132> because they are not first class
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<L29Ah> so i want to draw a half-rim frame for my glasses' lenses
<L29Ah> the good thing that they have a groove around the lens so that one doesn't need to account for varying thickness of the lens
<L29Ah> the bad thing is that the groove doesn't lie in a plane
<L29Ah> how can i translate the groove path into openscad?
<J24k93> a chained hull or polyhedron
<L29Ah> J24k93: yes, but i don't see how to get the coordinates
<J24k93> or multmatrix if skewing is enough
<J24k93> measuring and interpolation - lookup() may help here
<L29Ah> lookup() is nice, thanks
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<gbruno> [github] ErQrYfkrju opened issue #4922 (OpenSCAD crashes with twisted linear_extrude) https://github.com/openscad/openscad/issues/4922
<gbruno> [github] ErQrYfkrju edited issue #4922 (OpenSCAD crashes with twisted linear_extrude) https://github.com/openscad/openscad/issues/4922
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