public static bool Starts(this SmallTimeInterval x, SmallTimeInterval y) => x.Start == y.Start && x.End < y.End;
public static bool Meets(this SmallTimeInterval x, SmallTimeInterval y) => x.End == y.Start;
public static bool OverlapsWith(this SmallTimeInterval x, SmallTimeInterval y) => x.Start < y.Start && y.Start < x.End && x.End < y.End;
public static TemporalIntervalRelation GetTemporalIntervalRelation(this SmallTimeInterval x, SmallTimeInterval y)
{
TemporalIntervalRelation relation;
if (x.Before(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.Equal(y))
{
relation = TemporalIntervalRelation.IsEqualTo;
}
else if (x.After(y))
{
relation = TemporalIntervalRelation.IsPrecededBy;
}
else if (x.MetBy(y))
{
relation = TemporalIntervalRelation.IsMetBy;
}
else if (x.OverlappedBy(y))
{
relation = TemporalIntervalRelation.IsOverlappedBy;
}
else if (x.StartedBy(y))
{
relation = TemporalIntervalRelation.IsStartedBy;
}
else if (x.Contains(y))
{
relation = TemporalIntervalRelation.Contains;
}
else if (x.FinishedBy(y))
{
relation = TemporalIntervalRelation.IsFinishedBy;
}
else
{
throw new InvalidOperationException();
}
return(relation);
}
public static bool Before(this SmallTimeInterval x, SmallTimeInterval y) => x.End < y.Start;
public static bool Contains(this SmallTimeInterval x, SmallTimeInterval y) => y.During(x);
public static bool FinishedBy(this SmallTimeInterval x, SmallTimeInterval y) => y.Finishes(x);
public static bool OverlappedBy(this SmallTimeInterval x, SmallTimeInterval y) => y.OverlapsWith(x);
public static bool StartedBy(this SmallTimeInterval x, SmallTimeInterval y) => y.Starts(x);
public static bool MetBy(this SmallTimeInterval x, SmallTimeInterval y) => y.Meets(x);
public static bool After(this SmallTimeInterval x, SmallTimeInterval y) => y.Before(x);
public static bool Equal(this SmallTimeInterval x, SmallTimeInterval y) => x.Start == y.Start && x.End == y.End;
public static bool Finishes(this SmallTimeInterval x, SmallTimeInterval y) => y.Start < x.Start && x.End == y.End;
public static bool During(this SmallTimeInterval x, SmallTimeInterval y) => y.Start < x.Start && x.End < y.End;
