diff --git a/src/main/java/cit/PureATN/Note.java b/src/main/java/cit/PureATN/Note.java
index 9a907ad..51f80dc 100644
--- a/src/main/java/cit/PureATN/Note.java
+++ b/src/main/java/cit/PureATN/Note.java
@@ -57,8 +57,8 @@
         getCanvas().addInputEventListener(squiggleEventHandler);
 
         // install mouse wheel zoom event handler
-        final PMouseWheelZoomEventHandler mouseWheelZoomEventHandler = new PMouseWheelZoomEventHandler();
-        getCanvas().addInputEventListener(mouseWheelZoomEventHandler);
+        // final PMouseWheelZoomEventHandler mouseWheelZoomEventHandler = new PMouseWheelZoomEventHandler();
+        getCanvas().addInputEventListener(new WheelEvent_on_Note(getCanvas()));
 
         // pan
         // final MyPPanEventHandler panEventHandler = new
diff --git a/src/main/java/cit/PureATN/WheelEvent_on_Note.java b/src/main/java/cit/PureATN/WheelEvent_on_Note.java
new file mode 100644
index 0000000..68b9792
--- /dev/null
+++ b/src/main/java/cit/PureATN/WheelEvent_on_Note.java
@@ -0,0 +1,119 @@
+package cit.PureATN;
+
+import java.awt.Point;
+import java.awt.Robot;
+import java.awt.AWTException;
+
+import java.awt.geom.Point2D;
+import org.piccolo2d.PCamera;
+import org.piccolo2d.PCanvas;
+import org.piccolo2d.PLayer;
+import org.piccolo2d.event.PBasicInputEventHandler;
+import org.piccolo2d.event.PInputEvent;
+import org.piccolo2d.util.PBounds;
+
+public class WheelEvent_on_Note extends PBasicInputEventHandler {
+    public int direction = -1;
+    PCamera camera;
+    PLayer layer;
+    PCanvas canvas;
+
+    Point2D cursorpoint;
+    Robot robot;
+
+    public WheelEvent_on_Note(PCanvas canv) {
+        canvas = canv;
+        camera = canvas.getCamera();
+        layer = canvas.getLayer();
+        try {
+			robot = new Robot();
+		} catch (AWTException e) {
+		}
+    }
+    public void mouseMoved(PInputEvent e){
+        cursorpoint = e.getCanvasPosition();
+        try {
+            e.getPath().getPathTransformTo(layer).inverseTransform(cursorpoint, cursorpoint);
+        } catch (RuntimeException ex) {
+            cursorpoint = e.getPosition(); // Camera付きのメニューボタンや，背景部分(PCamera)のとき
+        }
+    }
+
+    public void setDirection(int d) {
+        direction = d;
+    }
+
+    public void mouseWheelRotated(PInputEvent e) {
+        if (!e.isControlDown() && !e.isShiftDown() && !e.isAltDown()) {
+
+            // System.out.println("wheel rotation: " + pc.getAttribute("hoge"));
+            PBounds pb = camera.getViewBounds();
+            // System.out.println(pb.toString());
+            float f = 1.0f + (0.1f * direction * e.getWheelRotation());
+            if (e.getWheelRotation() // 下に回すと正になるので
+                    * direction < 0) {
+                pb = zoomBounds_focusbyCursor(pb, f);
+            } else {
+                pb = zoomBounds(pb, f);
+            }
+            if (pb.x == 0 && pb.y == 0) {
+                System.out.println("ズームイン位置がまだ準備前");
+                return;
+            }
+            camera.animateViewToCenterBounds(pb, true, 0);
+            // if (MyPCanvas.this.wheelListener != null)
+            //     MyPCanvas.this.wheelListener.mouseWheelRotated(f);
+        }
+    }
+
+    /**
+     * 引数pbで与えた領域を，引数rateだけ拡大した新しい領域を返す
+     * 
+     * @param pagemanager 領域
+     * @param rate        ズーム率
+     * @return 新しい領域
+     */
+    public static PBounds zoomBounds(PBounds pb, double rate) {
+        double x = pb.getX();
+        double y = pb.getY();
+        double w = pb.getWidth();
+        double h = pb.getHeight();
+        double nw = w * rate;
+        double nh = h * rate;
+        double nx = x - (nw - w) / 2;
+        double ny = y - (nh - h) / 2;
+        return new PBounds(nx, ny, nw, nh);
+    }
+
+    public PBounds zoomBounds_focusbyCursor(PBounds pb, double rate) {
+        double x = pb.getX();
+        double y = pb.getY();
+        double w = pb.getWidth();
+        double h = pb.getHeight();
+        double nw = w * rate;
+        double nh = h * rate;
+        Point2D camcp = camera.getViewBounds().getCenter2D();
+        double camcx = camcp.getX();
+        double camcy = camcp.getY();
+        // System.out.println("camcp "+camcx+" "+camcy);
+        double curx = cursorpoint.getX();
+        double cury = cursorpoint.getY();
+        // System.out.println("cursor "+curx+" "+cury);
+        double nx = x - (nw - w) / 2 + curx - camcx;
+        double ny = y - (nh - h) / 2 + cury - camcy;
+        PBounds ret = new PBounds(nx, ny, nw, nh);
+        cursorpoint = ret.getCenter2D();
+
+        moveCursorPointCenter();
+        return ret;
+    }
+	public void moveCursorPointCenter() {
+		Point canvasglobalp = canvas.getLocationOnScreen();
+		int canvasw = canvas.getWidth();
+		int canvash = canvas.getHeight();
+		if (robot != null)
+			robot.mouseMove((int) (canvasglobalp.getX() + canvasw / 2),
+					(int) (canvasglobalp.getY() + canvash / 2));
+	}
+
+}