UmbralRaptor changed the topic of #kspacademia to: https://gist.github.com/pdn4kd/164b9b85435d87afbec0c3a7e69d3e6d | Dogs are cats. Spiders are cat interferometers. | Космизм сегодня! | Document well, for tomorrow you may get mauled by a ネコバス. | <UmbralRaptor> … one of the other grad students just compared me to nomal O_o | <ferram4> I shall beat my problems to death with an engineer.
Kosmo|EVA is now known as TheKosmonaut
GreeningGalaxy is now known as Ellied
<UmbralRaptor>
Astronomy units: we take the base 10 log of the "surface" gravity of a star (in cgs units)
<Iskierka>
... can we throw the people who decided this into the sun?
<UmbralRaptor>
I think many of them are long since retired, if not dead.
<Ellied>
why doesn't esper support cloaking anyway
<Iskierka>
can we do it anyway?
* Iskierka
is unaware of what specifically cloaking is
<egg>
well the terminology isn't at all trying to refer to what's happening geometrically :-p
<whitequark>
okay
<egg>
though arguably that's still a much saner word than slerp
<whitequark>
what *is* even happening geometrically
<egg>
I'm not entirely sure; do you rotate the closed contour as you drag it along the curve?
<whitequark>
generally no
<whitequark>
I imagine that would involve some nightmare-mode math
<egg>
ok, so it's some sort of parallel transport in Euclidean space I guess
<whitequark>
that does not sound wrong
<egg>
whitequark: well it's not necessarily nightmare-mode: a revolution surface is just that: rotating a thing as you drag it along a circle
<whitequark>
yes but now you have to represent it in NURBS
<egg>
ah apparently it's surface of revolution, not revolution surface
<egg>
whitequark: I don't really have any good intuition of how NURBS behave and whether they have any nice properties tbh, so no idea
<egg>
whitequark: also as far as terminology goes, that feels like a product of two 1d spaces, which you then immerse in 3d space in a rather boring way
<egg>
so the "natural" question that comes to my deranged mind is whether it makes sense to look at the pure tensors
<egg>
since the thing you're looking for sounds productish, maybe it's a tensor product?
<egg>
who knows
<egg>
I'm not sure where the points come from in that tensory talk though, so that's greatly confusing
<egg>
whitequark: so, if we see the curves as just arbitrary parametric things, this is just the sum of them (and possibly some offset to put one in the right place with respect to the other)?
<whitequark>
brep is super easy to write a CAD in, rrrright until the point where you need to interoperate with anything or make a triangle mesh, at which point you're fucked
<egg>
whitequark: ah, lofting *does* include rotation?
<egg>
whitequark: um, so, on lofting, I don't think I fully understand the rotation applied: we keep the plane of one curve normal to the other curve, but that leaves us one degree of freedom ("twisting" along the other curve). You could say "don't twist", but how do you define that
<kmath>
<whitequark> @eevee I would like to see a photo of my face when I learned that this is actually how you're supposed to run latex
<egg>
hmm, also I think eevee's figure style is similar to mine, figures in the margins? I think I managed to get something working for my applications
<egg>
or does she not want it in the margins
* egg
is confused
<Iskierka>
surely that part should be backing up all the latex pdfs, recompiling, comparing checksum, and repeating until checksum matches