PK_PARAM_knot_t    


typedef int PK_PARAM_knot_t;


This data type is used to specify the knot vector of splinewise
bcurves and bsurfs.
It has the following values:

    PK_PARAM_knot_auto_c     knot vector derived from accumulated chord length
    PK_PARAM_knot_defined_c  knot vector is supplied by application