Question create a vessel in the right place

[johnnymanly]

I'm working on a multistage vessel but I can't create new vessels in the right position.
I can create them, give them velocity and rotation, but I have to cheat and use "shiftCG" to get them to spawn in the right place.
It works OK but it's not perfect. Anyone know the proper way to do this?

 

[gattispilot]

Are you using ms2015? It is just a matter of attachment position

 

[johnnymanly]

Are you using ms2015? It is just a matter of attachment position

Are you taking the p*ss out of me?

 

[gattispilot]

Not sure. I use ms2015 for sls,....you can pm me if you need help

 

[DaveS]

Not sure. I use ms2015 for sls,....you can pm me if you need help

He' asking about doing this Lua, not MS2015. This the Lua Scripging subforum after all.

 

[johnnymanly]

- BUMP -

I still haven't figured this out.
Creating the spent vessel is easy enough. Giving it some rotation is fine:

local vs = vi:get_rawstatus(1)
  local t = vs:get()
  t.vrot = {x=0,y=0.5,z=0}
  vs:set(t)
  oapi.create_vessel("OmegaFairing1", "OmegaFairing1", vs)

I'm giving it a little velocity in the "prestep" of the created vessel:

if (0+simdt) < 0.01 then
    vi:add_force({x=-600,y=0,z=0}, {x=0,y=0,z=0})
end

But I don't know what method to use to create the vessel in the right position relative to the focus vessel.
I'm using "shiftCG" which is not ideal.
Anyone know the answer?

 

[Gondos]

You need to transform the mesh offset from vessel coordinates to planet relative with Local2Rel.
Maybe something like this if you have a mesh_id to spawn from (untested) :

local ofs = vi:get_meshoffset(mesh_id)
t.rpos = vi:local2rel(ofs)

 

[johnnymanly]

You need to transform the mesh offset from vessel coordinates to planet relative with Local2Rel.
Maybe something like this if you have a mesh_id to spawn from (untested) :

local ofs = vi:get_meshoffset(mesh_id)
t.rpos = vi:local2rel(ofs)

That's it.
Thank you very much