Hi Karsten

Thank you for the information. I'll study on it after work :-)
I need to understand it better, as well as your code.

Your script makes some very nice curves, even 3D.
I did a loft from a ccc of a clothoid curve to the moved clothoid, for a nice surface.

Yesterday I worked on moving some of the code to htm, for a speedup.
I tried switching from factory/factories to object lists, and even though
I used some of Max's type code, I still got a "type mismatch," so I am doing something wrong.
It is puzzling.

- Brian

Only one thing gets returned. A factory, an array, or an object list.
So I hope to separate out lFactories, acFactory, and pLFactory.

lFactories holds the lines. (?)
acFactory is the array of points. (?)
plFactory is the interpcurve made up of line end points. (?)