#principia on 2019-12-28 — irc logs at esper.irclog.whitequark.org

2019-12-26 20:29 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

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04:07 <discord-> OndrikB. — just updated to Fréchet, and it gave me this error

04:07 <discord-> OndrikB. — https://cdn.discordapp.com/attachments/480397772248580098/660332906509500446/unknown.png

04:07 <discord-> OndrikB. — this was not there when I had the previous version literally like 10 minutes ago

04:07 <discord-> OndrikB. — it worked fine then

04:07 <discord-> OndrikB. — this was not there when I had an older version literally like 10 minutes ago (edited)

04:11 <discord-> lpg. — <https://github.com/mockingbirdnest/Principia/wiki/Installing,-reporting-bugs,-and-frequently-asked-questions#windows-users>

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09:01 <_whitenotifier-d13c> [Principia] pleroy opened pull request #2415: Fix an error found by Clang - https://git.io/JeNnp

09:07 <_whitenotifier-d13c> [Principia] Pending. Build queued… -

09:07 <_whitenotifier-d13c> [Principia] Pending. Building… - http://casanova.westeurope.cloudapp.azure.com:8080/job/Principia/4047/

09:26 <_whitenotifier-d13c> [Principia] Success. Build finished. - http://casanova.westeurope.cloudapp.azure.com:8080/job/Principia/4047/

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11:15 <_whitenotifier-d13c> [Principia] pleroy labeled pull request #2415: Fix an error found by Clang - https://git.io/JeNnp

11:15 <_whitenotifier-d13c> [Principia] pleroy pushed 2 commits to master [+0/-0/±2] https://git.io/JeNCZ

11:15 <_whitenotifier-d13c> [Principia] pleroy 9b68ebb - Fix an error found by Clang.

11:15 <_whitenotifier-d13c> [Principia] pleroy fde2f2d - Merge pull request #2415 from pleroy/Clang Fix an error found by Clang

11:15 <_whitenotifier-d13c> [Principia] pleroy closed pull request #2415: Fix an error found by Clang - https://git.io/JeNnp

11:15 <_whitenotifier-d13c> [Principia] Pending. queued - https://dev.azure.com/mockingbirdnest/445d7b9d-0318-42e3-857f-b69d40b1ed1b/_build/results?buildId=292

11:15 <_whitenotifier-d13c> [Principia] Pending. queued - https://dev.azure.com/mockingbirdnest/445d7b9d-0318-42e3-857f-b69d40b1ed1b/_build/results?buildId=293

11:16 <_whitenotifier-d13c> [Principia] Pending. in progress - https://dev.azure.com/mockingbirdnest/445d7b9d-0318-42e3-857f-b69d40b1ed1b/_build/results?buildId=292

11:16 <_whitenotifier-d13c> [Principia] Pending. in progress - https://dev.azure.com/mockingbirdnest/445d7b9d-0318-42e3-857f-b69d40b1ed1b/_build/results?buildId=293

11:36 <_whitenotifier-d13c> [Principia] eggrobin unlabeled pull request #2415: Fix an error found by Clang - https://git.io/JeNnp

11:36 <_whitenotifier-d13c> [Principia] eggrobin labeled pull request #2415: Fix an error found by Clang - https://git.io/JeNnp

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11:50 <_whitenotifier-d13c> [Principia] Success. #292 succeeded - https://dev.azure.com/mockingbirdnest/445d7b9d-0318-42e3-857f-b69d40b1ed1b/_build/results?buildId=292

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12:01 <_whitenotifier-d13c> [Principia] Success. #293 succeeded - https://dev.azure.com/mockingbirdnest/445d7b9d-0318-42e3-857f-b69d40b1ed1b/_build/results?buildId=293

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13:52 <discord-> egg. — @OndrikB do what the FAQ says and it will work again

13:52 <discord-> OndrikB. — okay

13:52 <discord-> OndrikB. — I just thought that since I have the 2015 redistributable it would work

13:54 <discord-> egg. — nope, now you need the 2015-2019 one

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14:19 <_whitenotifier-d13c> [Principia] eggrobin opened pull request #2416: Use Signature in the Euler-Arnold solver - https://git.io/JeNlt

14:21 <_whitenotifier-d13c> [Principia] Pending. Build queued… -

14:21 <_whitenotifier-d13c> [Principia] Pending. Building… - http://casanova.westeurope.cloudapp.azure.com:8080/job/Principia/4048/

14:24 <_whitenotifier-d13c> [Principia] pleroy reviewed pull request #2416 commit - https://git.io/JeNlG

14:24 <_whitenotifier-d13c> [Principia] pleroy reviewed pull request #2416 commit - https://git.io/JeNlZ

14:25 <_whitenotifier-d13c> [Principia] eggrobin opened issue #2417: A smarter Forget - https://git.io/JeNln

14:25 <_whitenotifier-d13c> [Principia] pleroy labeled pull request #2416: Use Signature in the Euler-Arnold solver - https://git.io/JeNlt

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14:37 <_whitenotifier-d13c> [Principia] Success. Build finished. - http://casanova.westeurope.cloudapp.azure.com:8080/job/Principia/4048/

15:01 <_whitenotifier-d13c> [Principia] eggrobin synchronize pull request #2416: Use Signature in the Euler-Arnold solver - https://git.io/JeNlt

15:03 <_whitenotifier-d13c> [Principia] Pending. Build queued… -

15:03 <_whitenotifier-d13c> [Principia] Pending. Building… - http://casanova.westeurope.cloudapp.azure.com:8080/job/Principia/4049/

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15:20 <_whitenotifier-d13c> [Principia] Success. Build finished. - http://casanova.westeurope.cloudapp.azure.com:8080/job/Principia/4049/

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17:01 <_whitenotifier-d13c> [Principia] pleroy opened pull request #2418: Change the construction of the solver - https://git.io/JeNBO

17:03 <_whitenotifier-d13c> [Principia] Pending. Build queued… -

17:03 <_whitenotifier-d13c> [Principia] Pending. Building… - http://casanova.westeurope.cloudapp.azure.com:8080/job/Principia/4050/

17:04 <discord-> neph. — How do I better wrap my head around the Kozai mechanism?

17:19 <_whitenotifier-d13c> [Principia] Failure. Build finished. - http://casanova.westeurope.cloudapp.azure.com:8080/job/Principia/4050/

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17:23 <discord-> egg. — Лидов–古在!

17:24 <_whitenotifier-d13c> [Principia] eggrobin closed pull request #2416: Use Signature in the Euler-Arnold solver - https://git.io/JeNlt

17:24 <_whitenotifier-d13c> [Principia] eggrobin pushed 5 commits to master [+0/-0/±37] https://git.io/JeNBp

17:24 <_whitenotifier-d13c> [Principia] eggrobin 7078624 - Signatures in the Euler solver

17:24 <_whitenotifier-d13c> [Principia] eggrobin 776afe6 - Merge remote-tracking branch 'la-vache/master' into signature

17:24 <_whitenotifier-d13c> [Principia] eggrobin f6ca628 - construction

17:24 <_whitenotifier-d13c> [Principia] ... and 2 more commits.

17:24 <_whitenotifier-d13c> [Principia] Pending. queued - https://dev.azure.com/mockingbirdnest/445d7b9d-0318-42e3-857f-b69d40b1ed1b/_build/results?buildId=294

17:24 <_whitenotifier-d13c> [Principia] Pending. queued - https://dev.azure.com/mockingbirdnest/445d7b9d-0318-42e3-857f-b69d40b1ed1b/_build/results?buildId=295

17:24 <_whitenotifier-d13c> [Principia] Pending. in progress - https://dev.azure.com/mockingbirdnest/445d7b9d-0318-42e3-857f-b69d40b1ed1b/_build/results?buildId=294

17:24 <_whitenotifier-d13c> [Principia] Pending. in progress - https://dev.azure.com/mockingbirdnest/445d7b9d-0318-42e3-857f-b69d40b1ed1b/_build/results?buildId=295

17:25 <_whitenotifier-d13c> [Principia] eggrobin labeled pull request #2418: Change the construction of the solver - https://git.io/JeNBO

17:42 <_whitenotifier-d13c> [Principia] pleroy synchronize pull request #2418: Change the construction of the solver - https://git.io/JeNBO

17:43 <_whitenotifier-d13c> [Principia] Pending. Build queued… -

17:43 <_whitenotifier-d13c> [Principia] Pending. Building… - http://casanova.westeurope.cloudapp.azure.com:8080/job/Principia/4051/

17:47 <_whitenotifier-d13c> [Principia] pleroy synchronize pull request #2418: Change the construction of the solver - https://git.io/JeNBO

17:48 <_whitenotifier-d13c> [Principia] Failure. Build finished. - http://casanova.westeurope.cloudapp.azure.com:8080/job/Principia/4051/

17:49 <_whitenotifier-d13c> [Principia] Pending. Build queued… -

17:49 <_whitenotifier-d13c> [Principia] Pending. Building… - http://casanova.westeurope.cloudapp.azure.com:8080/job/Principia/4052/

17:54 <discord-> egg. — @neph we have an open bug to write a test for it if you feel like it :-p https://github.com/mockingbirdnest/Principia/issues/1119

17:55 <discord-> neph. — Love me some directed hands-on-learning. To which orbital element timeseries would such a test have access?

17:57 <_whitenotifier-d13c> [Principia] Success. #294 succeeded - https://dev.azure.com/mockingbirdnest/445d7b9d-0318-42e3-857f-b69d40b1ed1b/_build/results?buildId=294

17:57 <discord-> egg. — dunno, I guess make a 2-massive-body test system, plonk a massless body in it, shove it in the orbit analyser, and look at the mean elements

17:58 <discord-> egg. — the APIs might be a bit of a learning cliff, though they tend to direct you towards not being wrong

17:59 <discord-> neph. — It seems I'll have to learn Kop syntax first.

18:01 <discord-> neph. — Only mean elements? My first intuition was to run a FFT on a projected timeseries of instantaneous orbital elements (if such a thing is calculated) and then peek at the main period of the inclination & eccentricity, assuming I understand the conditions of the Lidov-Kozai right

18:01 <discord-> egg. — @neph oh you mean testing it in-game?

18:02 <discord-> egg. — well, the mean elements will eliminate some high frequency noise

18:02 <discord-> egg. — they're 1-orbit mean

18:02 <discord-> egg. — not loooooong-term mean

18:02 <discord-> neph. — Ah, nice

18:02 <discord-> egg. — the test was more about testing it in a unit test, independently of KSP

18:02 <discord-> egg. — playing Principia is best done in a C++ IDE :-p

18:03 <discord-> egg. — without KSP

18:03 <discord-> neph. — (disclosure: I still haven't updated Principia to Fibonacci

18:03 <discord-> neph. — (disclosure: I still haven't updated Principia to Fibonacci) (edited)

18:04 <discord-> neph. — Are the mean elements projectable? Just thinking about how this would be implemented in-game

18:04 <discord-> neph. — Are the mean elements projectable or do you have to wait for them to generate? Just thinking about how this would be implemented in-game (edited)

18:04 <discord-> neph. — I suppose that doesn't at all matter outside of the game environment...

18:05 <discord-> neph. — Thanks for the pointers, if I find time to play/develop/fuck around I'll try to output a bunch of mean elements to a csv and then fool around in matlab

18:05 <discord-> neph. — Thanks for the pointers, if I find time to play/develop/fuck around I'll try to output a bunch of hopefully-interesting mean elements to a csv and then fool around in matlab (edited)

18:05 <_whitenotifier-d13c> [Principia] Success. Build finished. - http://casanova.westeurope.cloudapp.azure.com:8080/job/Principia/4052/

18:08 <UmbralRaptop> no, no. use FITS, not CSV

18:08 * UmbralRaptop <_<

18:09 <_whitenotifier-d13c> [Principia] Success. #295 succeeded - https://dev.azure.com/mockingbirdnest/445d7b9d-0318-42e3-857f-b69d40b1ed1b/_build/results?buildId=295

18:14 <discord-> egg. — > I still haven't updated Principia to Fibonacci

18:14 <discord-> egg. — Bad @neph

18:14 * discord- egg. — slaps @neph with a trout_

18:16 <_whitenotifier-d13c> [Principia] pleroy closed pull request #2418: Change the construction of the solver - https://git.io/JeNBO

18:16 <_whitenotifier-d13c> [Principia] pleroy pushed 4 commits to master [+0/-0/±9] https://git.io/JeN0Z

18:16 <_whitenotifier-d13c> [Principia] pleroy 17c21dd - Change the construction of the solver to take the momentum in the inertial frame.

18:16 <_whitenotifier-d13c> [Principia] pleroy dcbb7fe - Lint.

18:16 <_whitenotifier-d13c> [Principia] pleroy b39e2fc - Merge.

18:16 <_whitenotifier-d13c> [Principia] pleroy e4d629e - Merge pull request #2418 from pleroy/SolverConstruction Change the construction of the solver

18:16 <_whitenotifier-d13c> [Principia] Pending. queued - https://dev.azure.com/mockingbirdnest/445d7b9d-0318-42e3-857f-b69d40b1ed1b/_build/results?buildId=296

18:16 <_whitenotifier-d13c> [Principia] Pending. queued - https://dev.azure.com/mockingbirdnest/445d7b9d-0318-42e3-857f-b69d40b1ed1b/_build/results?buildId=297

18:16 <_whitenotifier-d13c> [Principia] Pending. in progress - https://dev.azure.com/mockingbirdnest/445d7b9d-0318-42e3-857f-b69d40b1ed1b/_build/results?buildId=296

18:16 <_whitenotifier-d13c> [Principia] Pending. in progress - https://dev.azure.com/mockingbirdnest/445d7b9d-0318-42e3-857f-b69d40b1ed1b/_build/results?buildId=297

18:30 <discord-> Sir Mortimer. — Neither did I

18:30 <discord-> Sir Mortimer. — But i don’t have principia on my smartphone

18:31 <discord-> Sir Mortimer. — KSP for iOS when?

18:33 <discord-> egg. — @Sir Mortimer you don't need to have KSP to have Principia though=

18:33 <discord-> egg. — just run clang on your phone

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18:39 * UmbralRaptop 's phone doesn't have enough ram. I think it at least has a 64bit processor though

18:47 <_whitenotifier-d13c> [Principia] Success. #296 succeeded - https://dev.azure.com/mockingbirdnest/445d7b9d-0318-42e3-857f-b69d40b1ed1b/_build/results?buildId=296