struct PK_FACE_hollow_o_s
    {
    int                o_t_version;    --- version number of option structure
    PK_check_fa_fa_t   check_fa_fa;    --- check for face-face
                                       --- (PK_check_fa_fa_yes_c)
    PK_LOGICAL_t       pierce_tangent; --- process tangent pierce faces before
                                       --- offset operation
                                       --- (PK_LOGICAL_false)
    PK_offset_method_t offset_method;  --- offset method
                                       --- (PK_offset_method_accurate_c)
    };
typedef struct PK_FACE_hollow_o_s PK_FACE_hollow_o_t;


This structure contains optional controls for PK_FACE_hollow_3



Description of fields:

check_fa_fa           Check for face-face inconsistencies. Permitted values
                        are:
                              PK_check_fa_fa_yes_c
                              PK_check_fa_fa_no_c
                        The default value is PK_check_fa_fa_yes_c.

pierce_tangent        A "tangent pierce face" is a pierce face which
                        shares at least one smooth edge with a face which
                        is not a pierce face. When this option is set to
                        PK_LOGICAL_true, any tangent pierce face(s) will be
                        processed before offsetting the faces in the body
                        so that side faces can be created along the smooth
                        boundary edges. Setting this option to
                        PK_LOGICAL_true has no effect on the result if
                        the body has no tangent pierce faces.

offset_method         The method used for offsetting surfaces in the body.
                        The default value is PK_offset_method_accurate_c.