diff --git a/src/org/ntlab/animations/EdgeAnimation.java b/src/org/ntlab/animations/EdgeAnimation.java
new file mode 100644
index 0000000..cdd0a87
--- /dev/null
+++ b/src/org/ntlab/animations/EdgeAnimation.java
@@ -0,0 +1,66 @@
+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();		
+	}
+
+}