ProBsplinedataInit

(

int degree

/* (In)

The basis function's degree.

*/

double* params

/* (In)

The ProArray of knots on the parameter line.

*/

double* weights

/* (In)

In the case of rational B-splines, this is a ProArray of the same dimension as the array of c_pnts. Otherwise, this is NULL.

*/

ProPoint3d* c_pnts

/* (In)

The ProArray of knots on control points.

*/

int num_knots

/* (In)

The size of the params array.

*/

int num_c_points

/* (In)

The size of the c_pnts (and weights, if not NULL).

*/

ProCurvedata* p_curve

/* (Out)

The B-spline data structure.

*/

)

The function successfully initialized the B-spline data structure.

One or more of the input arguments are invalid.

The degree is greater than the effectively supported maximum (3).

The end knots do not have degree + 1 multiplicity.