struct PK_FACE_change_s
    {
    PK_FACE_change_type_t  op_type;    --- change operation type
    PK_FACE_change_data_t  op_param;   --- change operation parameters
    PK_FACE_change_opts_t  op_opts;    --- change operation options
    };
typedef struct PK_FACE_change_s PK_FACE_change_t;


This structure contains the definition of a change operation.


Description of fields:



op_type                Type of the change operation to perform.
                         Values can be :
                             PK_FACE_change_type_none_c
                             PK_FACE_change_type_offset_c
                             PK_FACE_change_type_taper_c
                             PK_FACE_change_type_transform_c
                             PK_FACE_change_type_replace_c
                             PK_FACE_change_type_blend_c
                         The default value is PK_FACE_change_type_none_c.


op_param               Parameters of the change operation. This field is
                         a union of the different possible change operation
                         parameters (cf PK_FACE_change_data_t).


op_opts                Change-operation-specific options. This field is
                         a union of the different possible change operation
                         parameters (cf PK_FACE_change_opts_t).