public void Case1(Sink sink, Edge edge, Trapezoid[] tList)
{
YNode yNode = new YNode(edge, Sink.Isink(tList[1]), Sink.Isink(tList[2]));
XNode qNode = new XNode(edge.Q, yNode, Sink.Isink(tList[3]));
XNode pNode = new XNode(edge.P, Sink.Isink(tList[0]), qNode);
Replace(sink, pNode);
}
public void Case3(Sink sink, Edge edge, Trapezoid[] tList)
{
YNode yNode = new YNode(edge, Sink.Isink(tList[0]), Sink.Isink(tList[1]));
Replace(sink, yNode);
}