PK_CURVE_self_ints_t

struct PK_CURVE_self_ints_s
    {
    int                  n_self_int; --- number of self-intersections
    PK_CURVE_self_int_t *self_int;   --- details of self-intersections
    };

typedef struct PK_CURVE_self_ints_s PK_CURVE_self_ints_t;



A structure packaging details of self-intersections on a curve.

Used in:

PK_CURVE_find_self_int
PK_CURVE_fix_self_int
PK_CURVE_self_ints_f

The structure has the following fields :

'n_self_int'        The number of self-intersections on the curve.

'self_int'          An array of length 'n_self_int', holding information on
                    each self-intersecting physical region. Each self-
                    intersection corresponds to a physical region in three-
                    space, and consists of two or more parametric regions of
                    the curve. For example, for a curve which has two
                    parametric regions "A" and "B" occupying the same physical
                    space, and two more parametric regions "C" and "D"
                    occupying another space, then the function would return an
                    array of length two, with one entry storing the parametric
                    regions "A" and "B", and the other entry storing the
                    parametric regions "C" and "D".

The function PK_CURVE_self_ints_f may be used to free associated memory.