diff --git a/Edge.java b/Edge.java
deleted file mode 100644
index e8c88c7..0000000
--- a/Edge.java
+++ /dev/null
@@ -1,33 +0,0 @@
-package sig;
-
-public class Edge {
-	Point a,b;
-	int min_y;
-	int max_y;
-	int min_x;
-	int max_x;
-	double x_of_min_y;
-	double inverse_slope;
-	public Edge(Point a, Point b) {
-		super();
-		this.a = a;
-		this.b = b;
-		min_y=Math.min(a.y, b.y);
-		max_y=Math.max(a.y, b.y);
-		min_x=Math.min(a.x, b.x);
-		max_x=Math.max(a.x, b.x);
-		if (a.y==min_y) {
-			x_of_min_y=a.x;
-		} else {
-			x_of_min_y=b.x;
-		}
-		
-		inverse_slope=(double)(a.x-b.x)/(a.y-b.y);
-	}
-	@Override
-	public String toString() {
-		return "Edge [a=" + a + ", b=" + b + ", min_y=" + min_y + ", max_y=" + max_y + ", min_x=" + min_x + ", max_x="
-				+ max_x + ", x_of_min_y=" + x_of_min_y + ", inverse_slope=" + inverse_slope + "]";
-	}
-	
-}