public bool Intersects(SmallDateInterval other)
{
var start = ElementPair.Max(Start, other.Start);
var end = ElementPair.Min(End, other.End);
var intersects = start <= end;
return(intersects);
}
public SmallDateInterval?Intersect(SmallDateInterval other)
{
var start = ElementPair.Max(Start, other.Start);
var end = ElementPair.Min(End, other.End);
var intersects = start <= end;
return(intersects
? new SmallDateInterval(start, end)
: (SmallDateInterval?)null);
}
public bool Contains(SmallDateInterval other)
{
var contains = Start <= other.Start && other.End <= End;
return(contains);
}
public static bool Starts(this SmallDateInterval x, SmallDateInterval y) => x.Start == y.Start && x.End < y.End;
public static bool OverlapsWith(this SmallDateInterval x, SmallDateInterval y) => x.Start < y.Start && y.Start <= x.End && x.End < y.End;
public static bool Meets(this SmallDateInterval x, SmallDateInterval y) => x.End.Next == y.Start;
public static bool Precedes(this SmallDateInterval x, SmallDateInterval y) => x.End.Next < y.Start;
public static TemporalIntervalRelation GetTemporalIntervalRelation(this SmallDateInterval x, SmallDateInterval y)
{
TemporalIntervalRelation relation;
if (x.Precedes(y))
{
relation = TemporalIntervalRelation.Precedes;
}
else if (x.Meets(y))
{
relation = TemporalIntervalRelation.Meets;
}
else if (x.OverlapsWith(y))
{
relation = TemporalIntervalRelation.OverlapsWith;
}
else if (x.Starts(y))
{
relation = TemporalIntervalRelation.Starts;
}
else if (x.During(y))
{
relation = TemporalIntervalRelation.During;
}
else if (x.Finishes(y))
{
relation = TemporalIntervalRelation.Finishes;
}
else if (x.IsPrecededBy(y))
{
relation = TemporalIntervalRelation.IsPrecededBy;
}
else if (x.IsMetBy(y))
{
relation = TemporalIntervalRelation.IsMetBy;
}
else if (x.IsOverlappedBy(y))
{
relation = TemporalIntervalRelation.IsOverlappedBy;
}
else if (x.IsStartedBy(y))
{
relation = TemporalIntervalRelation.IsStartedBy;
}
else if (Contains(x, y))
{
relation = TemporalIntervalRelation.Contains;
}
else if (x.IsFinishedBy(y))
{
relation = TemporalIntervalRelation.IsFinishedBy;
}
else if (x.IsEqualTo(y))
{
relation = TemporalIntervalRelation.IsEqualTo;
}
else
{
throw new InvalidOperationException();
}
return(relation);
}
public static bool Finishes(this SmallDateInterval x, SmallDateInterval y) => y.Start < x.Start && x.End == y.End;
public static bool IsFinishedBy(this SmallDateInterval x, SmallDateInterval y) => y.Finishes(x);
public static bool Contains(this SmallDateInterval x, SmallDateInterval y) => y.During(x);
public static bool IsStartedBy(this SmallDateInterval x, SmallDateInterval y) => y.Starts(x);
public static bool IsOverlappedBy(this SmallDateInterval x, SmallDateInterval y) => y.OverlapsWith(x);
public static bool IsMetBy(this SmallDateInterval x, SmallDateInterval y) => y.Meets(x);
public static bool IsPrecededBy(this SmallDateInterval x, SmallDateInterval y) => y.Precedes(x);
public static bool IsEqualTo(this SmallDateInterval x, SmallDateInterval y) => x.Start == y.Start && x.End == y.End;
public static bool During(this SmallDateInterval x, SmallDateInterval y) => y.Start < x.Start && x.End < y.End;