Module freeform 

The freeform surfaces of the Creo B-rep: interpolating bicubic splines (splsrf), rolling-ball fillets (fillet_srf) and ruled surfaces (ruled_srf). All three carry absolute 3D data, so they need no convention and even seed the resolution of the analytic faces.

Curves and grids are clamped C² cubic splines through their points with the stored end derivatives (de Boor), evaluated as piecewise cubic Hermite segments.

Structs

Grid

Bicubic C² interpolation through a nu × nv grid with end tangents and corner twists (splsrf).

Spline

A clamped C² cubic spline through points at knots.

Enums

Curve

A boundary curve of a ruled surface.

Freeform

One freeform surface.

Functions

read

Reads a freeform surface from its srf_prim_ptr(<kind>) node.