I have a set of points scattered in a 2D plane. The points are scattered in a somwhat circular/elipptical way, but I would like to fit some arbitrarily (but smoothed) shaped spline. The points are distributed like:
To enable closing of a spline, the last and first data points are the same.
As said I would like to fit a closed smoothed spline to this curve. I've tried the cscvn-option giving me the below, but I would like something a bit more smoothened out (cscvn forces the spline to go exactly through each and every point):
Reading up in the help, csaps seem to enable smoothing (to be fair, I'm not really sure how), but if trying this on my data I get a smoothed non-closed curve like below:
However I might be applying the parametrization in an incorrect way...
So, to my question. Does anyone have a good way of creating a closed smoothed spline to my data? Any suggestion or help would be very much appreciated. (P.S: I'm trying to create an automatized code, so I'm preferably looking for executable code than GUI in the curve fitting toolbox (but I understand that they are somewhat connected...)).
Thanks for the help!