public void Add(SweepLineInterval sweepInt)
{
SweepLineEvent insertEvent = new SweepLineEvent(sweepInt.Min, null, sweepInt);
events.Add(insertEvent);
events.Add(new SweepLineEvent(sweepInt.Max, insertEvent, sweepInt));
}
public SweepLineEvent(double x, SweepLineEvent insertEvent, SweepLineInterval sweepInt)
{
this.xValue = x;
this.insertEvent = insertEvent;
this.eventType = SweepLineEventType.INSERT;
if (insertEvent != null)
{
this.eventType = SweepLineEventType.DELETE;
}
this.sweepInt = sweepInt;
}
private void ProcessOverlaps(int start, int end,
SweepLineInterval s0, ISweepLineOverlapAction action)
{
/// <summary> Since we might need to test for self-intersections,
/// include current insert event object in list of event objects to test.
/// Last index can be skipped, because it must be a Delete event.
/// </summary>
for (int i = start; i < end; i++)
{
SweepLineEvent ev = (SweepLineEvent)events[i];
if (ev.IsInsert)
{
SweepLineInterval s1 = ev.Interval;
action.Overlap(s0, s1);
nOverlaps++;
}
}
}