UmbralRaptop changed the topic of #principia to: READ THE FAQ: http://goo.gl/gMZF9H; The current version is 🐇. 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…
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Standecco. — how were you able to fix the performance and prediction length problems?
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egg. — By showing only the bodies that ksp would and only the length of the vessel's prediction and history
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egg. — Rather than trying to be smart and show one orbit
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egg. — If you have short histories you'll just see tiny trails and that's ok
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Standecco. — yeah that's smart
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Standecco. — you can't do anything useful with the orbit if you don't know your own trajectory, after all
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egg. — yeah, and showing the same length for all bodies (rather than one orbit for each) gives you a sense of their speed that you lose otherwise
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Standecco. — also true
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Standecco. — I have basically no idea about planets' angular velocities
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Acer_Saccharum. — so in this case the path length is the same as the history length?
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egg. — what do you mean by path length
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egg. — the duration over which the trajectories of the celestial bodies is shown is always the history length of the selected/active vessel if there is one, or the chosen maximal history length otherwise
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egg. — This is, notably, independent of geometric path length (contrary to KSP, which always shows one revolution, regardless of how long a revolution takes)
<UmbralRaptop>
One (1) true anomaly
<UmbralRaptop>
… or I suppose mean anomaly
<egg|zzz|egg>
for unperturbed orbits if you take an entire period, it doesn't matter which one that is :-p
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Acer_Saccharum. — yeah I definitely could have phrased that question better
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Acer_Saccharum. — does that therefore mean that when you increase history length, the lengths of the planet orbit lines do not immediately increase?
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Acer_Saccharum. — or have you somehow made it back-calculate the orbits to account for that
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Acer_Saccharum. — ~~does that therefore mean that when you increase history length, the lengths of the planet orbit lines do not immediately increase?
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Acer_Saccharum. — or have you somehow made it back-calculate the orbits to account for that~~
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Acer_Saccharum. — I just read the text of the pull request and the answer to my question was in the first sentence 🤦 (edited)
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Damien. — I take it this will make interplanetary maneuvers easier to do too
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Antstar. — Ahh, a place for principia, excellent...
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Antstar. — Question: Does anyone have any tips for approximate launch times and inclinations for planetary transfers. Because of how everything is so insanely out of plane, it is hard to find a camera angle that provides any kind of use
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Antstar. — I have tried to aim for the ecliptic. It seems to be the *least bad* method. I have tried polar launches at teh right time and that can be okay, but is usually very very bad
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Antstar. — Not asking for an exact solution. I'm asking for the best visual hack that someone has come up with that I haven't thought of yet
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PlasticGuy. — i think a good way is to launch into plane of the moon and launch at irl transfer windows
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Antstar. — So, in other words, my method now is: Wait until you are launch inclination degrees before midday/night and launch to 23deg N or south final inclination
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Antstar. — @PlasticGuy yeah, moon is 5 deg off ecliptic, which is a lot of dV. But helps to align the actual ecliptic up, sometimes
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Antstar. — Oh, and I should say +/- up to the launch inclination before or after midday, depending if it is summer or winter