raptop changed the topic of #principia to: READ THE FAQ: http://goo.gl/gMZF9H; The current version is Fréchet. We currently target 1.5.1, 1.6.1, and 1.7.x. <scott_manley> anyone that doubts the wisdom of retrograde bop needs to get the hell out | https://xkcd.com/323/ | <egg> calculating the influence of lamont on Pluto is a bit silly… | <egg> also 4e16 m * 2^-52 is uncomfortably large
<discord-> n​eph. — egg, I believe you might be interested in this lovely brand new mod. Is there any reason to believe it would conflict with Principia's camera handling?
<discord-> n​eph. — https://forum.kerbalspaceprogram.com/index.php?/topic/193054-19-tinu-there-is-no-up-001/&tab=comments#comment-3769360
<discord-> P​teropodidae. — @egg Do you still need to use c++1z or does everything support c++17 now?
<discord-> P​teropodidae. — Or are those different enough that that change won't work?
<discord-> e​gg. — hm
<discord-> e​gg. — I really don’t know
<discord-> e​gg. — we even use some 20 features tbh
<discord-> e​gg. — :D
<discord-> P​teropodidae. — Which ones?
<discord-> P​teropodidae. — Also, no more 32-bit support?
<discord-> e​gg. — @neph should be fine, we do not touch the flight camera, only map
<discord-> e​gg. — @Pteropodidae no 32-bit support anymore indeed
<discord-> P​teropodidae. — Alright
<discord-> e​gg. — how can we properly gobble all your memory if the address space is so smol
<discord-> n​eph. — Very nice.
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<discord-> P​teropodidae. — How much extra RAM does Principia consume over stock KSP anyways?
<discord-> P​teropodidae. — I assume a lot more the longer the save has run?
<discord-> e​gg. — well
<discord-> e​gg. — the save gets big, and the memory usage is even worse because some things are recomputed rather than saved
<discord-> P​teropodidae. — Would it be possible to use "checkpoint" ephemerides?
<discord-> P​teropodidae. — So integrate until something like 1970, then restart integration using precomputed ephemerides?
<discord-> P​teropodidae. — Also, as far as I can tell c++1z is a synonym for c++17
<discord-> e​gg. — > So integrate until something like 1970, then restart integration using precomputed ephemerides?
<discord-> e​gg. — that would mitigate the computation time a little bit, but the primary issue in that issue is one of storage
<discord-> e​gg. — the saves are chonk
<discord-> P​teropodidae. — Oh right, since you don't store history for the planets
<discord-> P​teropodidae. — Or do you?
<discord-> P​teropodidae. — > Obviously that's not very smart of us, but then the alternative of explicitly storing 72 years of history has its own drawbacks (it runs out of memory on my machine, for instance).
<discord-> P​teropodidae. — Apparently not?
<discord-> P​teropodidae. — If vessels themselves are taking up that much space then idk
<discord-> e​gg. — I have a plan
<discord-> e​gg. — well
<discord-> e​gg. — I have a sea of papers
<kmath> <eggleroy> <Majiir> I really am imagining egg just drowning in a sea of papers https://t.co/P2iqkDT7CN
<discord-> n​eph. — That's a handsome egg.
* UmbralRaptop gives egg a references.bib
<discord-> e​gg. — specifically, see the footnote in https://forum.kerbalspaceprogram.com/index.php?/topic/162200-wip151-161-17x-181-principia%E2%80%94version-frobenius-released-2020-03-24%E2%80%94n-body-and-extended-body-gravitation-axial-tilt/page/60/&tab=comments#comment-3753887
<discord-> e​gg. — (yes my forum posts have footnotes)
<discord-> P​teropodidae. — At this point I'm convinced Principia is less a mod and more a lab for implementing astrophysics-related papers
<discord-> e​gg. — yeah, a geometry, numerics, physics, and astronomy library with a KSP mod in a corner for some reason
<discord-> D​RVeyl. — The KSP mod is so you can have library testers. 😉
<discord-> e​gg. — We roughly replicated the parameter search from the TRAPPIST-1 paper at one point
<discord-> l​pg. — isn't KSP a mod for principia?
<discord-> e​gg. — KSP is a graphical frontend for Principia
<discord-> P​teropodidae. — Holy moly that's a lot of PRs needed to handle angular momentum
<discord-> e​gg. — yup, about a year of work
<discord-> e​gg. — and I still have to review the documentation, see the open PR
<_whitenotifier-d13c> [Principia] Thanametron starred Principia - https://git.io/JvjeK
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<discord-> P​teropodidae. — What c++2a features are you using?
<discord-> P​teropodidae. — @egg btw, the `principia_make.sh` files you pushed aren't executable. Is that intentional?
<discord-> P​teropodidae. — It's not a big deal since I can source the files instead of executing them, but just wanted to make sure
<_whitenotifier-d13c> [glog] ts826848 opened pull request #7: Fix misspelled BUILD_SHARED_LIBS - https://git.io/Jvjf9
<discord-> P​teropodidae. — Jeez, template torture indeed. >6GB of RAM for `make`
<_whitenotifier-d13c> [abseil-cpp] ts826848 forked the repository - https://git.io/JvhYv
<_whitenotifier-d13c> [zfp] ts826848 forked the repository - https://git.io/JvhYv
<_whitenotifier-d13c> [zfp] ts826848 opened pull request #4: Remove CMAKE_LD_FLAGS - https://git.io/JvjJv
<_whitenotifier-d13c> [abseil-cpp] ts826848 opened pull request #2: Tweak principia_make.sh cmake flags - https://git.io/JvjJT
<_whitenotifier-d13c> [benchmark] ts826848 forked the repository - https://git.io/JvhYv
<_whitenotifier-d13c> [benchmark] ts826848 opened pull request #4: Tweak principia_make.sh cmake flags - https://git.io/JvjJk
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<_whitenotifier-d13c> [Principia] ts826848 synchronize pull request #2523: Build fixes on macOS - https://git.io/Jvp7K
<_whitenotifier-d13c> [Principia] ts826848 edited pull request #2523: Update install_deps.sh to use principia_make.sh from dependencies - https://git.io/Jvp7K
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<_whitenotifier-d13c> [Principia] ts826848 commented on pull request #2523: Update install_deps.sh to use principia_make.sh from dependencies - https://git.io/JvjJ4
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<discord-> e​gg. — I think pleroy preferred that they not be executable
<_whitenotifier-d13c> [Principia] Pending. Build queued… - 
<_whitenotifier-d13c> [Principia] Pending. Build queued… - 
<_whitenotifier-d13c> [Principia] Pending. Building… - http://casanova.westeurope.cloudapp.azure.com:8080/job/Principia/4207/
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<discord-> S​tandecco. — <ùhttps://www.desmos.com/calculator/6mty0qef1t> (edited)
<discord-> S​tandecco. — <https://www.desmos.com/calculator/6mty0qef1t> (edited)
<discord-> e​gg. — @Pteropodidae I think you definitely need to source rather than eggsecute the `principia_variable_override` files at least, since they set variables
<discord-> S​tandecco. — better without the preview
<kmath> <stephentyrone> Architectural innovation by hens. https://t.co/8dR3Nsvp2b
<discord-> S​tandecco. — I read this piece on how modern architecture is garbage compared to, well, any architecture from other times or places
<discord-> S​tandecco. — I have to admit that it's kinda true
<discord-> S​tandecco. — we don't get the awesome old stuff nor the awesome futuristic stuff
<discord-> S​tandecco. — we get this instead
<_whitenotifier-d13c> [Principia] Success. Build finished. - http://casanova.westeurope.cloudapp.azure.com:8080/job/Principia/4207/
<_whitenotifier-d13c> [Principia] Pending. Building… - http://casanova.westeurope.cloudapp.azure.com:8080/job/Principia/4208/
<discord-> B​utcher. — That looks terrible.
<discord-> B​utcher. — We get glass and steel.
<discord-> S​tandecco. — glass and steel can look good, but it's only a very specific type of good, usually
<discord-> S​tandecco. — modern buildings in general either have terribly asymmetrical ornaments, or no ornaments at all
* discord- e​gg. — pets a cat_
<discord-> B​utcher. — You want cats? I get you cats. Many cats.
<_whitenotifier-d13c> [Principia] Success. Build finished. - http://casanova.westeurope.cloudapp.azure.com:8080/job/Principia/4208/
<discord-> B​utcher. — @Standecco al the old stuff here is either brick or stone faced. I think it looks much better.
<discord-> S​tandecco. — here are your CATs
<discord-> B​utcher. — My cat is so lazy.
<discord-> S​tandecco. — @Butcher that's true almost anywhere, and it's why people go to "historical" places; that type of building just looks better 99% of the time
<discord-> B​utcher. — Apparently it's a grey cat thing.
<discord-> S​tandecco. — my cat is incredibly lazy too, and he's black and white
<discord-> S​tandecco. — he's never reacted to TV or mirrors or whatever cats usually react to either
<discord-> S​tandecco. — he's either incredibly dumb or incredibly smart
<discord-> B​utcher. — Normal state.
<discord-> B​utcher. — That or begging for food.
<discord-> B​utcher. — He's over 6 kilos already.
<discord-> e​gg. — mine is snoring
<discord-> K​irk. — Art Deco is my favorite kind of architecture
<discord-> e​gg. — hm, getting more reports of the aerodynamics issue https://forum.kerbalspaceprogram.com/index.php?/topic/162200-wip151-161-17x-181-principia%E2%80%94version-frobenius-released-2020-03-24%E2%80%94n-body-and-extended-body-gravitation-axial-tilt/page/61/&tab=comments#comment-3769860
<discord-> e​gg. — @neph have you been able to reproduce it in non-RSS/RO?
<_whitenotifier-d13c> [Principia] eggrobin commented on issue #2519: Spin-up on reentry under physics warp with FAR - https://git.io/JvjOt
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<_whitenotifier-d13c> [Principia] pleroy opened pull request #2527: Avoid exceptions on very long flight plans - https://git.io/JvjZE
<_whitenotifier-d13c> [Principia] Pending. Build queued… - 
<_whitenotifier-d13c> [Principia] Pending. Building… - http://casanova.westeurope.cloudapp.azure.com:8080/job/Principia/4209/
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<_whitenotifier-d13c> [Principia] Success. Build finished. - http://casanova.westeurope.cloudapp.azure.com:8080/job/Principia/4209/
<discord-_> P​teropodidae. — @egg The files are sourced, but they use the POSIX-standard `.` notation instead of the bash-speciic `source`. Should I change that?
<discord-_> e​gg. — . is fine
<discord-_> e​gg. — LGTM overall, will add some comments to the script and merge
<discord-_> e​gg. — but also worrying about the aerodynamics bug right now
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<_whitenotifier-d13c> [Principia] eggrobin synchronize pull request #2523: Update install_deps.sh to use principia_make.sh from dependencies - https://git.io/Jvp7K
<discord-_> P​teropodidae. — Yeah, that one does not sound fun
<_whitenotifier-d13c> [Principia] Pending. Build queued… - 
<_whitenotifier-d13c> [Principia] Pending. Building… - http://casanova.westeurope.cloudapp.azure.com:8080/job/Principia/4210/
<discord-_> n​eph. — I haven't attempted yet. First KSP opportunity since last week was yesterday, and I spent it building planes instead.
<discord-_> e​gg. — I managed to reproduce it
<discord-_> e​gg. — in stock, no FAR, no RO, no physics warp
<discord-_> e​gg. — @ferram4 as could have been predicted FAR is innocent
<discord-_> P​teropodidae. — Nice!
<discord-_> P​teropodidae. — Curious to find out what the bug will be
<discord-_> S​ir Mortimer. — *twisting thumbs*
<discord-_> S​ir Mortimer. — im slowly running out of contracts to implement
<_whitenotifier-d13c> [Principia] Success. Build finished. - http://casanova.westeurope.cloudapp.azure.com:8080/job/Principia/4210/
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<discord-_> l​pg. — where's the d100?
<discord-_> S​ir Mortimer. — that's so yesterday.
<discord-_> l​pg. — I've not heard of a d&d edition that uses d100
<discord-_> S​ir Mortimer. — if you're really bored (and skilled)
<discord-_> l​pg. — I've not heard of a d&d edition that uses d00 (edited)
<discord-_> l​pg. — I've not heard of a d&d edition that uses d200 (edited)
<discord-_> e​gg. — > im slowly running out of contracts to implement
<discord-_> e​gg. — hast du DOP denn schon geschrieben? :-p
<discord-_> S​ir Mortimer. — nö 😛
<discord-_> S​ir Mortimer. — oh and there are some things that are utterly untested (hence buggy)
* discord-_ e​gg. — pets cat_
<discord-_> S​ir Mortimer. — and regarding DOP... i'm not sure how to do this in a way that lets the player improve his constellation based on nothing but the status indication I display in the contract. doing an accurate real life calculation would probably overdo it, unless there is something people can look at that says "do this to improve it"
<discord-_> S​ir Mortimer. — for instance, dual frequency transmitters and stratospheric effects are pretty much out of scope
<discord-_> S​ir Mortimer. — for instance, dual frequency transmitters and ionospheric effects are pretty much out of scope (edited)
<discord-_> e​gg. — I think we had discussed that already
<discord-_> e​gg. — you can show eggsagerated shells of error
<discord-_> e​gg. — highlight their intersections, and that gives you a visualization of the error
<discord-_> e​gg. — and the rest follows naturally
<discord-_> e​gg. — dual frequency transmitters make the shell thinner, this is something you can see
<discord-_> e​gg. — this does require some map view visualization to be usable, but then so do things like radiation belts
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<discord-_> A​cer_Saccharum. — These things take time
<discord-_> A​cer_Saccharum. — this is the 128 from yesterday
<discord-_> A​cer_Saccharum. — I could try a 256, but I'd need to make it much larger
<discord-_> S​ir Mortimer. — Seeing what you did there I’m reluctant of generating a 256
<discord-_> A​cer_Saccharum. — I printed this on an 11x17 (A3-ish) inch sheet of paper
<discord-_> S​ir Mortimer. — Besides half the ball would be impossible o glue because of the tiny flaps, but you could just glue some paper strips on the back
<discord-_> A​cer_Saccharum. — well to go larger I'd split each strip of polygons into it's own shape
<discord-_> A​cer_Saccharum. — and print them separately
<discord-_> S​ir Mortimer. — A3 helps. Shame I haven’t got that 🙂
<discord-_> A​cer_Saccharum. — well the structural limit is probably around 1k, beyond that it might just collapse under its own weight
<discord-_> S​ir Mortimer. — ok. generating 256 faces. this will take a while.
<discord-_> A​cer_Saccharum. — is there a way to make the lines thinner?
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<discord-_> S​ir Mortimer. — it would appear so, yes
<discord-_> S​ir Mortimer. — ```py
<discord-_> S​ir Mortimer. — linewidth = 0.5
<discord-_> S​ir Mortimer. — ```
<discord-_> S​ir Mortimer. — ^ i guess that's it
<discord-_> S​ir Mortimer. — (it's sitll calculating the vertices)
<discord-_> A​cer_Saccharum. — well I figure it would take a while for them all to settle down
<discord-_> A​cer_Saccharum. — aren't these being generated by repelling points on a sphere?
<discord-_> S​ir Mortimer. — yes. iterative simulation until they stop moving
<discord-_> S​ir Mortimer. — there's his story <https://www.chiark.greenend.org.uk/~sgtatham/polyhedra/>
<_whitenotifier-d13c> [Principia] eggrobin labeled pull request #2523: Update install_deps.sh to use principia_make.sh from dependencies - https://git.io/Jvp7K
<_whitenotifier-d13c> [Principia] eggrobin closed pull request #2523: Update install_deps.sh to use principia_make.sh from dependencies - https://git.io/Jvp7K
<_whitenotifier-d13c> [Principia] eggrobin pushed 9 commits to master [+0/-0/±9] https://git.io/Jvj40
<_whitenotifier-d13c> [Principia] Alex Wang 2820779 - Add zfp to install_deps.sh
<_whitenotifier-d13c> [Principia] Alex Wang 3c8dad0 - Fix zfp.h include zfp.h is located at include/zfp.h, not include/zfp/zfp.h.
<_whitenotifier-d13c> [Principia] Alex Wang ba56718 - Use zfp fork instead of LLNL's repo
<_whitenotifier-d13c> [Principia] ... and 6 more commits.
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<discord-_> S​ir Mortimer. — line width 0.1
<discord-_> S​ir Mortimer. — and that's what you're building 🙂
<discord-_> A​gustinCaniglia. — I am experiencing a shake when I land something in stock system... I guess it has something to do with principia though I am not sure.
<discord-_> A​gustinCaniglia. — Its like an warthquake
<discord-_> A​gustinCaniglia. — It does not happen If I rover around, But when I land a probe it happens...
<discord-_> A​gustinCaniglia. — Its hard to reproduce since it only happened on kerbin twice when I landed sideways... Maybe it is a parts bug....
<discord-_> A​gustinCaniglia. — Yeah.. I think principia has nothing to do with itt..... erasing commentaries...