[Closed] copy mirror options keeping the scale

Maybe i don’t understand but,

doesn’t mirror keep the same scale by default?

can you elaborate and show the code you’re working with?

But how to find the mirror matrix of object B?

rootGroup is object B
o is object A

for o in objs do
 (
     ...
     tm = o.transform * (inverse rootGroup.transform)
     o.transform = tm*destinationGroups[i].transform
     ...
 )
 

If I save the previous scale of Object A then I loose the mirror option:

for o in objs do
 (
     ...
       parentscale = o.scale
       tm = o.transform * (inverse rootGroup.transform)
       o.transform = tm*destinationGroups[i].transform
       o.scale = parentscale 
     ...
 )