struct PK_SURF_intersect_curve_o_s
    {
    int             o_t_version;    --- version number of option structure
    PK_LOGICAL_t    have_box;       --- whether box provided (PK_LOGICAL_false)
    PK_BOX_t        box;            --- box of interest
    };

typedef struct PK_SURF_intersect_curve_o_s PK_SURF_intersect_curve_o_t;



Holds optional controls on intersections between a surface and a curve.


The option structure defines options applicable to the intersection of a
surface and a curve.