STL Creation after Savitzky Filter

Hello All,

I have a program that will create STL files of these contours (see images). However, without using a Savitzky filter, the contours are very jagged. But, the triangulation only seems to work correctly when Savitszky filter is not used. Manipulate lines 46 and 47 to turn on or off the filter to see the difference.

Does anyone know how I can get the STLs being created correctly again but with using the Savitzky filter?

Thanks in advanced