For Frame, try vector\FrameByVec.
Right hand rule with two orthogonal vectors yields z axis.

I find a lot of the point characteristics confusing:-)
Lots of luck with SplitPts and PointExt.

- Brian

There are also Infos/ShowFrame
and Points2/getCrvSFrame

Text2:
https://moi3d.com/forum/index.php?webtag=MOI&msg=7777.936