Save the transform relative to another object when transforming.

Help . Hello. There are for example 3 points. How to get a transform matrix of 1 point when transforming 2 points to 3, so that the position and rotation itself is also preserved between 1 and 2 point. (as if point 1 was linked to point 2)

ObjT = $Point002.transform
TrgtT = $Point003_Point.transform
OffT = $Point001_Point.transform

TmOffset = TrgtT * inverse ObjT

in coordsys local TmOffset .rotation = inverse (TmOffset.rotation as quat)
TmOffset.pos += TmOffset.pos