internal double FindMinimum(Key from, Key to)
{
if (Predicates.LessOrEqual(from, From) && Predicates.LessOrEqual(To, to))
{
return(Minimum);
}
if (Predicates.Less(to, From) || Predicates.More(from, To))
{
return(double.PositiveInfinity);
}
if ((null != FirstChild) && (null != SecondChild))
{
double first = FirstChild.FindMinimum(from, to);
double second = SecondChild.FindMinimum(from, to);
double result = Math.Min(first, second);
return(result);
}
if (Predicates.LessOrEqual(from, To))
{
return(Close);
}
if (Predicates.MoreOrEqual(to, From))
{
return(Open);
}
return(double.PositiveInfinity);
}