struct PK_FACE_identify_blends_r_s
    {
    int                 n_blend_facesets;   --- number of blend facesets found
    PK_FACE_array_t    *blend_facesets;     --- faces classified as blends
    double             *blend_radii;        --- radii of blend facesets
    PK_convexity_t     *blend_convexities;  --- convexities of blend facesets
    };
typedef struct PK_FACE_identify_blends_r_s PK_FACE_identify_blends_r_t;


This structure contains the results of an identity blends operation.
The PK memory associated with this structure may be freed by calling
PK_FACE_identify_blends_r_f



Description of fields:

n_blend_facesets  The number of blend facesets found

blend_facesets    An array of blend facesets, each faceset contains an array
                    of connected blend faces

blend_radii       This field will be an array parallel to blend_facesets.
                    Each element of this array giving the radius of the blends
                    in the corresponding element of blend_facesets

blend_convexities This field will be an array parallel to blend_facesets.
                    Each element of this array gives the convexity of the
                    blends in the corresponding element of blend_facesets.