Did you link to the subfile/model the reference to the rotor lives in? This is needed when the reference you want to use is not in the top level ldr (as ldc.subfile() links to toplevel by default), e.g.:
Alternatively you could create a nested group at top level, but if it's a single part or submodel you want to rotate walking the model tree is the better / cleaner solution.
Groups can be (re)named by opening the selection properties dialog, click on the coordinates panel or enter key while the group is selected.
You can add items to a group by selecting it, followed by also selecting the items you want to add from the grouping menu (listed one level up in the default sel rightclick menu) and then choose 'add selection to group'.
Code:
local roof=ldc.subfile('roof.ldr')
local rotor1=roof:getRef('rotorpart.dat', 1)
local rotor2=roof:getRef('rotorpart.dat', 2)Alternatively you could create a nested group at top level, but if it's a single part or submodel you want to rotate walking the model tree is the better / cleaner solution.
Groups can be (re)named by opening the selection properties dialog, click on the coordinates panel or enter key while the group is selected.
You can add items to a group by selecting it, followed by also selecting the items you want to add from the grouping menu (listed one level up in the default sel rightclick menu) and then choose 'add selection to group'.