private static void UpdateActivePoints(ref Point p, ref Point firstActive, SkipList <Point> t, double delta)
{
var q = firstActive;
while (p.X - q.X > delta && q.X < double.NegativeInfinity)
{
firstActive = t.Next(q);
t.Remove(q);
q = firstActive;
}
}
private static void UpdateDeltaOnRight(ref Point p, ref Point r, ref double delta, SkipList <Point> t, ref Point?a, ref Point?b)
{
var i = 0;
while (r != new Point(double.NegativeInfinity, double.PositiveInfinity) && (i < 4))
{
var dist = D(p, r);
if (dist < delta)
{
delta = dist;
a = p;
b = r;
}
r = t.Next(r);
if (r == default(Point))
{
break;
}
i++;
}
}
