unable to edit rotational axis

[Thundercracker]

in my simulation, i have one star orbited by a vey large number of bodies. after some time, i noticed a lot of z-axis ecentriccity, which isnt a big deal, i used the "flatten to equatoral plane" tool.

i noticed that on my planets, this knocked their rotational axis out of alignment in proportion to the z-correction. this is not a big deal, i expect many collisions which will fix that over time.

the problem is with the parent star. the star has now decided that it's rotational plane is exactly perpendicular to the orbital plane.... it's rotating like uranus.

all options to correct this in the info pannel are either greyed out or do not actually accept input (they reset to their previous value after focus leaves the input box)

the edit tool does allow me to rotate the star... but the field of particals surrounding it is "attached" for lack of a better term. this means that if i manually rotate the star with the edit tool, my partical disk ends up perpendicular to my actual planets.

i am trying to avoid deleting my particals, as i have a bunch of emitted gas that's been mixing for over 25 years in simulation, and at ~1 hour a step, that's quite a while in realtime. plus, i dont know that if i do reset my partical disks, they wont stick to the same, incorrect plane.

[Jar]

Sorry for the issue. It looks like you stumbled upon a series of bugs!

1 - I'm not sure why the axis of the star would have changed, but it does appear that using the "Make 2D - Zero All Height Values" feature makes some undesired changes to rotational period, too. I'll make a note to check on how it's affecting rotations, because that shouldn't be happening.

2 - We're aware of an issue with editing Rotation Axis via the Properties Panel. This broke recently and hopefully we can get it working again soon.

3 - Yes particles will move in respect to their parent bodies when using Edit, if they were specifically created around the body. This makes sense in a lot of cases where you'd want rings to move with a planet, for example, but I can see how it doesn't make sense in your case.

I'm not certain what your best solution here is, but maybe you could simply replace the star. Delete the current one, add an identical new one, then use "Auto Orbit" in Tools to keep everything moving as it was.

[Thundercracker]

Originally posted by Jar:

Sorry for the issue. It looks like you stumbled upon a series of bugs!

1 - I'm not sure why the axis of the star would have changed, but it does appear that using the "Make 2D - Zero All Height Values" feature makes some undesired changes to rotational period, too. I'll make a note to check on how it's affecting rotations, because that shouldn't be happening.

2 - We're aware of an issue with editing Rotation Axis via the Properties Panel. This broke recently and hopefully we can get it working again soon.

3 - Yes particles will move in respect to their parent bodies when using Edit, if they were specifically created around the body. This makes sense in a lot of cases where you'd want rings to move with a planet, for example, but I can see how it doesn't make sense in your case.

I'm not certain what your best solution here is, but maybe you could simply replace the star. Delete the current one, add an identical new one, then use "Auto Orbit" in Tools to keep everything moving as it was.

ive managed to get the star into roughly the rotation i'd like by toying with the orientation numbers on the motion tab of the infobox. i dont think this method would properly work on a planet, as im turning the object without actually turning the axis of roation. on a body that is "stationary" in the frame of reference, the object just appears to rotate, but if orbiting it would "cartwheel" rather than either normal or uranian style rotation.

but for my single-star protoplanetary disk, it's a fine stopgap.

i guess the best suggestion i can make is perhaps a toggle for "attaching" orbiting bodies in edit mode, so that you can rotate an object with it's particles, bodies, both, or neither.