private static void UpdateDeltaOnLeft(ref Point p, ref Point l, ref double delta, SkipList <Point> t, ref Point?a, ref Point?b)
{
var i = 0;
while (l != new Point(double.NegativeInfinity, double.NegativeInfinity) && (i < 4))
{
var dist = D(p, l);
if (dist < delta)
{
delta = dist;
a = p;
b = l;
}
l = t.Previous(l);
if (l == default(Point))
{
break;
}
i++;
}
}
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++;
}
}
