typedef int PK_FACE_trim_degen_t;


This data type is used to select whether surface degeneracies will be
included in the output of PK_FACE_output_surf_trimmed.  It has two values:

    PK_FACE_trim_degen_no_c         Do not include degeneracies except those
                                    implied by the PK_FACE_trim_confine_t
                                    setting.
    PK_FACE_trim_degen_yes_c        All parametric degeneracies occurring on
                                    the face will be represented (irrespective
                                    of whether they are associated with
                                    topology).