public static double?tryIntersectWithBezier(CubicBezier bezier, BezierEnd end, Func <Point, bool> isPointInside)
{
double start = end == BezierEnd.Start ? 0.0 : 1.0;
double fin = end == BezierEnd.Start ? 1 : 0;
// bisect always returns a valid value.
return(linearBisect(start, fin, DefaultIntersectionIterations,
(a, b) =>
{
var p1 = bezier.AtT(a);
var p2 = bezier.AtT(b);
return (p2 - p1).Length() > DefaultIntersectionTolerance;
},
(h) =>
{
var p = bezier.AtT(h);
return isPointInside(p);
}
)
);
}