Getting the child coordinates relative to it's parent

Support Modeling
1

Hi all =]

I have a bunch of parent objects with 4 children each; I need to know the position of the children relative to it’s parent.

For example, if the parent is at ( 1, 1, 1 ), a child at ( 2, 2, 2 ) in world space coordinates would have it’s relative position set at ( 1, 1, 1 ), because ( 2, 2, 2 ) - ( 1, 1, 1 ) equals ( 1, 1, 1 ).

Something similar to the Transform Properties window would be useful, except I do not want the absolute coordinates. I need this to be relative to be based on the object’s center, not vertices, so going into EDIT mode is not an option =/

2

I think Blender always shows in TP panel parent relative coords not globals ( in object mode ).
Quick test : open TP panel ( N-key ), select parent then child with Shift to see child coords in TP panel, hit G-key to move both. Coords in TP panel doesn’t change.