How to generate a closed surface using sverchok? I just learned how to create a surface from a number of circles with different radii:



the problem with this though is that the shape has a hole at the top and bottom (although the radius is 0 at both points). that's why when applying a subsurf modifier creates this kind of unwanted result:



so my question is: using only sverchok, is there a way to close these holes?
It looks like that you have an internal vertex/circle of vertices on the top. Can you check the topology before subsurf? 




You can see on the second picture that there is one circle with 0 radius inside on this reproduction of your problem.

Then, I dont know sverchok but i guess it should do the trick:

sverch Remove Doubles