PK_make_spcurves_degen_t

typedef int PK_make_spcurves_degen_t;

Used in:

PK_CURVE_make_spcurves_o_t

SP-curves may start or end on surface degeneracies, may lie entirely
within them, but may not pass through them. A trimmed curve which passes
through a surface degeneracy will be approximated by at least two
SP-curves. This datatype is used to indicate whether a zero length SP-curve
is returned which joins the otherwise disjoint SP-curves in parameter space.
Zero length SP-curves may not be attached to a model.

PK_make_spcurves_degen_t has the values:

    PK_make_spcurves_degen_no_c    A zero length SP-curve is not returned.

    PK_make_spcurves_degen_join_c  A zero length SP-curve which joins the
                                   otherwise disjoint SP-curves is returned.