/// <summary>
/// This function can be overridden if the original chains are needed.
/// </summary>
/// <param name="mc1"></param>
/// <param name="start1">The index of the start of the overlapping segment from mc1.</param>
/// <param name="mc2"></param>
/// <param name="start2">The index of the start of the overlapping segment from mc2.</param>
public virtual void Overlap(MonotoneChain mc1, int start1, MonotoneChain mc2, int start2)
{
mc1.GetLineSegment(start1, ref overlapSeg1);
mc2.GetLineSegment(start2, ref overlapSeg2);
Overlap(overlapSeg1, overlapSeg2);
}
/// <summary>
/// This method is overridden to process a segment
/// in the context of the parent chain.
/// </summary>
/// <param name="mc">The parent chain</param>
/// <param name="startIndex">The index of the start vertex of the segment being processed</param>
public virtual void Select(MonotoneChain mc, int startIndex)
{
mc.GetLineSegment(startIndex, ref SelectedSegment);
// call this routine in case select(segment) was overridden
Select(SelectedSegment);
}
