From 5f651233d8b929f0ecec61a8127940fb029365c0 Mon Sep 17 00:00:00 2001
From: zzzzrrr <mason.green@gmail.com>
Date: Thu, 16 Jul 2009 09:30:30 -0400
Subject: [PATCH] removed unessary case 4 query graph pointer magic

---
 src/org/poly2tri/QueryGraph.scala | 10 ++--------
 src/org/poly2tri/XNode.scala      |  9 ++-------
 2 files changed, 4 insertions(+), 15 deletions(-)

diff --git a/src/org/poly2tri/QueryGraph.scala b/src/org/poly2tri/QueryGraph.scala
index f950b5c..3a6bc35 100644
--- a/src/org/poly2tri/QueryGraph.scala
+++ b/src/org/poly2tri/QueryGraph.scala
@@ -86,13 +86,7 @@ class QueryGraph(var head: Node) {
   
   def case4(sink: Sink, s: Segment, tList: ArrayBuffer[Trapezoid]) {
     val yNode = new YNode(s, Sink.init(tList(0)), Sink.init(tList(1)))
-    if(s.left != null) {
-      val pNode = new XNode(new Point(s.p.x, s.p.y, s), Sink.init(s.left), yNode)
-      val qNode = new XNode(new Point(s.q.x, s.q.y, s), pNode, Sink.init(tList(2)))
-      replace(sink, qNode)
-    } else {
-      val qNode = new XNode(new Point(s.q.x, s.q.y, s), yNode, Sink.init(tList(2)))
-      replace(sink, qNode)
-    }
+    val qNode = new XNode(new Point(s.q.x, s.q.y, s), yNode, Sink.init(tList(2)))
+    replace(sink, qNode)
   }
 }
diff --git a/src/org/poly2tri/XNode.scala b/src/org/poly2tri/XNode.scala
index e923433..f684083 100644
--- a/src/org/poly2tri/XNode.scala
+++ b/src/org/poly2tri/XNode.scala
@@ -37,16 +37,11 @@ class XNode(point: Point, lChild: Node, rChild: Node) extends Node(lChild, rChil
       // Move to the right in the graph
       return right.locate(s)
     } else if(s.p.x == point.x) {
-      if(point.y > s.p.y) {
-        s.left = point.segment.below
-      } else {
-        s.left = point.segment.above
-      }
+      // Move to the right in the graph
       return right.locate(s)
     } else {
       // Move to the left in the graph
       return left.locate(s)
     } 
   }
-
-}
+}
\ No newline at end of file