Fitpackpp wraps the package of Fortran subroutines for smoothing splines by P. Dierckx, FITPACK. This wrapper uses the double precision version of FITPACK distributed with scipy.
The BSplineCurve class wraps the 1D routines "curfit", "splev", and "splder".
The BSplineSurface class wraps the 2D routines "surfit", "bispev", and "parder".
Paul Dierckx, Curve and Surface Fitting with Splines, Oxford University Press, 1993.