diff --git a/src/org/ntlab/animations/EdgeAnimation.java b/src/org/ntlab/animations/EdgeAnimation.java
deleted file mode 100644
index cdd0a87..0000000
--- a/src/org/ntlab/animations/EdgeAnimation.java
+++ /dev/null
@@ -1,66 +0,0 @@
-package org.ntlab.animations;
-
-import java.awt.Point;
-import java.awt.geom.Point2D;
-import java.util.concurrent.ThreadPoolExecutor;
-
-import org.ntlab.deltaViewer.DeltaGraphAdapter;
-
-import com.mxgraph.model.mxICell;
-import com.mxgraph.swing.mxGraphComponent;
-import com.mxgraph.util.mxPoint;
-
-/**
- * Animation of edge stretching and shrinking.
- * 
- * @author Nitta Lab.
- */
-public class EdgeAnimation extends MagnetRONAnimation {
-	
-    /**
-     * The constructor of {@code EdgeAnimation}.
-     * 
-     * @param mxgraph
-     * @param mxgraphComponent
-     */
-	public EdgeAnimation(DeltaGraphAdapter mxgraph, mxGraphComponent mxgraphComponent) {
-		super(mxgraph, mxgraphComponent);
-	}
-	
-	/**
-	 * See {@code MagnetRONAnimation#init(mxICell, Point2D, ThreadPoolExecutor)}
-	 * 
-	 * @param sourceCell
-	 * @param targetPoint
-	 */
-	@Override
-	public void init(mxICell sourceCell, Point2D targetPoint, ThreadPoolExecutor threadPoolExecutor) {
-		super.init(sourceCell, targetPoint, threadPoolExecutor);
-		
-		Point2D curPoint = new Point(sourceCell.getGeometry().getPoint());
-		System.out.println("sourcePoint: " + sourceCell.getGeometry().getPoint());
-		System.out.println("targetPoint: " + targetPoint);
-		
-		// Calculate resize line model
-		mxPoint distancePoint = new mxPoint();
-		distancePoint.setX(targetPoint.getX() - curPoint.getX()); 
-		distancePoint.setY(targetPoint.getY() - curPoint.getY());
-		Point2D updatePoint = new Point2D.Double();
-		updatePoint.setLocation(distancePoint.getX() / getTotalCycleCount(), distancePoint.getY() / getTotalCycleCount());
-		setVelocity(updatePoint);
-		System.out.println("updatePoint: " + getVelocity());
-	}
-	
-	protected void jumpTo(int curCycleCount) {
-		// Add a vertex to the graph in a transactional fashion. The vertex is actually a 'cell' in jgraphx terminology.
-		mxgraph.getModel().beginUpdate();
-		try {
-			getSourceCell().getGeometry().setX(getSourceInitalPoint().getX() + getVelocity().getX() * curCycleCount);
-			getSourceCell().getGeometry().setY(getSourceInitalPoint().getY() + getVelocity().getY() * curCycleCount);
-		} finally {
-			  mxgraph.getModel().endUpdate();
-		}
-    	mxgraphComponent.refresh();		
-	}
-
-}