PK_BCURVE_spline_t

typedef int PK_BCURVE_spline_t;

Used in:

PK_BCURVE_create_spline
PK_BCURVE_spline_r_t

This datatype is used to return the status of a B-curve splining operation.

It has the values:

    PK_BCURVE_spline_ok_c           Successfully created the spline.

    PK_BCURVE_spline_failure_c      Failed to create the spline.

    PK_BCURVE_spline_degree_c       The degree is negative or too low for
                                    the derivative conditions imposed.

    PK_BCURVE_spline_bad_derivs_c   An invalid derivative has been supplied.
                                    The indices of the bad derivatives in
                                    the 'derivs' array are returned in
                                    'fault_values'.

    PK_BCURVE_spline_many_derivs_c  Too many derivatives of a given order.
                                    The order of the overabundant derivatives
                                    is returned in 'fault_values'.

    PK_BCURVE_spline_bad_params_c   A parameter value in 'parameters' lies
                                    outside the 'param_interval' or the
                                    'parameters' are not monotonically
                                    increasing with respect to the order
                                    of the corresponding positions. For
                                    periodic curves, this error is also given
                                    if the start and end of the
                                    'param_interval' are both supplied as
                                    parameters. The index of the incorrect
                                    value in 'parameters' is returned in
                                    'fault_values'.

    PK_BCURVE_spline_bad_knots_c    The knot values are inconsistent with
                                    the parameter range in 'param_interval'
                                    or are not monotonically increasing.

    PK_BCURVE_spline_high_mult_c    The knot multiplicity is too high for
                                    the given 'degree'.  The index of the
                                    incorrect knot in 'knots' is returned
                                    in 'fault_values'.

    PK_BCURVE_spline_overdefined_c  The position, parameter and derivative
                                    conditions (locally) overdefine a spline
                                    of the given knotset.