AcGeNurbCurve3d::AcGeNurbCurve3d

C++

AcGeNurbCurve3d(
    int degree, 
    const AcGeKnotVector& knots, 
    const AcGePoint3dArray& cntrlPnts, 
    Adesk::Boolean isPeriodic = Adesk::kFalse
);

Parameters

Parameters	Description
degree	Input degree of spline
knots	Input array of knot values, partitioning spline's domain into polynomial pieces
cntrlPnts	Input array of 3D control points
isPeriodic	Input flag indicating if spline is a closed curve

Description

If isPeriodic = Adesk::kFalse then the length of knot vector must be greater than the length of the control array by degree+1.

If isPeriodic = Adesk::kTrue then one of the following must be true:

length of the knot vector must be greater than length of the control array by 1. The first and the last control points must not be identical.
knot vector and control array must have same length, and the first and the last control points must be identical.

Links

AcGeNurbCurve3d