I'm not sure what the actual queston is here,
you can bring in a curve through free points using x,y,z coordinate points from a spreadsheet.
you can convert a spline into equal points if you so need to. For instance if a made a spline with 5 control points and I wanted to break that spline into 20 points, yet still have the control points in tact. This is an API function that you have to write a macro for, I have one if you need it. The only thing I have not been successful with at the moment is making those points update when I change the spline. working on this!
Did i answer the right question? LOL
It's too early in the morning!
Regards,
Jon Benavides
Fisher Unitech
Troy MI