Simplest way to create a plane curve?

[HelterSkelter]

I have a set of XY data that I want to create a datum curve in a plane from. What is the simplest way to do this?

 

[ndk]

There 2 ways to drill the solution (as my thought):


1/ Generate a interpolative equation through all these points and then, create a datum curve using equation. It's a laborious work.


2/ Using notepad, create a data file with .pts extension,contain your points data:


Coordinates of spline points:
(they may be edited using available editor; changes in X and Y
coordinates of the first and the last points will be ignored)


CARTESIAN COORDINATES:


X Y Z
0 0 0
35.51771 69.87091 0
143.8176 108.2999 0
241.6369 164.1966 0
315.0014 130.4257 0
394.1884 69.87091 0
415.1497 0 0


Then, create sketch datum curve. In sketch environment, assign a CS, and ketch a spline at your convenience. Double click on the spline to edit. Chose file, point out the CS, end then, load the data file .pts for the curve by choosing the "open" icon. See pic below


View attachment 1292