PK_PARAM_twist_t   

typedef int PK_PARAM_twist_t;

Used in:

PK_BCURVE_make_bsurf_lofted_o_t
PK_BSURF_splinewise_sf_t


This datatype is used to specify whether twist vectors are supplied
It has the following values:

    PK_PARAM_twist_no_c                  twist vectors not supplied
    PK_PARAM_twist_yes_c                 twist vectors supplied