public static IntervalDictionary <K, VR> Filter <K, V, VR>(this IntervalDictionary <K, V> me, Interval <K> filter, Func <Interval <K>, V, VR> mapper)
where K : struct, IComparable <K>, IEquatable <K>
{
IntervalDictionary <K, VR> result = new IntervalDictionary <K, VR>();
foreach (var item in me)
{
var intersection = item.Key.Intersection(filter);
if (intersection != null)
{
result.Add(intersection.Value, mapper(intersection.Value, item.Value));
}
}
return(result);
}
internal static IntervalDictionary <K, int> ToIndexIntervalDictinary <Q, K>(this IEnumerable <Q> squares, Func <Q, IEnumerable <K> > func)
where K : struct, IComparable <K>, IEquatable <K>
{
List <K> list = squares.SelectMany(func).Distinct().ToList();
list.Sort();
IntervalDictionary <K, int> result = new IntervalDictionary <K, int>();
for (int i = 0; i < list.Count - 1; i++)
{
result.Add(new Interval <K>(list[i], list[i + 1]), i);
}
return(result);
}