Hi Marco,

re:
> I mean, given a bunch of "point" objects how can I calculate or get the "frame" that represents the
> default axis orientation of each point (inside a loop) ?

Well a point object by itself doesn't have any concept of an orientation. It's just x,y,z coordinates in space, the default would just be world axis directions. But you might check out Max's scripts from here if you've got other additional information like surfaces or curves on a surface: http://moi3d.com/forum/index.php?webtag=MOI&msg=6486.1

- Michael