/// <summary>
/// Gets the sign corresponding to the given overlap kind.
/// -- means the first interval, and
/// () means the second interval.
/// </summary>
/// <param name="overlapKind">Kind of the overlap.</param>
/// <returns></returns>
public static string GetSign(IntervalOverlapKinds overlapKind)
{
switch (overlapKind)
{
case IntervalOverlapKinds.FirstInsideSecond:
return("(--)");
case IntervalOverlapKinds.FirstIncludesSecond:
return("-()-");
case IntervalOverlapKinds.FirstBeforeAndInsideSecond:
return("-(-)");
case IntervalOverlapKinds.FirstInsideAndAfterSecond:
return("(-)-");
case IntervalOverlapKinds.FirstBeforeSecond:
return("--()");
case IntervalOverlapKinds.FirstAfterSecond:
return("()--");
default:
throw new Exception("Unknown interval overlap type!");
}
}
/// <summary>
/// Detects kind of the overlap that the specified two ranges have.
/// </summary>
/// <param name="start1">The inclusive start of the first interval.</param>
/// <param name="end1">The exclusive end of the first interval.</param>
/// <param name="start2">The inclusive start of the second interval.</param>
/// <param name="end2">The exclusive end of the second interval.</param>
/// <returns></returns>
public static IntervalOverlapKinds Detect(int start1, int end1, int start2, int end2)
{
IntervalOverlapKinds relation = IntervalOverlapKinds.FirstAfterSecond;
if (start2 <= start1 && end1 <= end2)
{
// (--)
relation = IntervalOverlapKinds.FirstInsideSecond;
}
else if (start1 <= start2 && end2 <= end1)
{
// -()-
relation = IntervalOverlapKinds.FirstIncludesSecond;
}
else if (start1 < start2 && start2 < end1 && end1 <= end2)
{
// -(-)
relation = IntervalOverlapKinds.FirstBeforeAndInsideSecond;
}
else if (start2 <= start1 && start1 < end2 && end1 > end2)
{
// (-)-
relation = IntervalOverlapKinds.FirstInsideAndAfterSecond;
}
else if (start1 < start2 && end1 <= start2)
{
// --()
relation = IntervalOverlapKinds.FirstBeforeSecond;
}
else if (start1 >= end2)
{
// ()--
relation = IntervalOverlapKinds.FirstAfterSecond;
}
else
{
throw new Exception("Could not detect interval overlapping kinds");
}
return(relation);
}
