diff --git a/src/main.cpp b/src/main.cpp
index 8ef35d34..5d13ebaa 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -373,26 +373,25 @@ protected:
 int main(int argc, char* argv[]) {
 	SpdLogger logger("logs/log.txt", 5);
  //
-	// Application::setAttribute(Qt::AA_EnableHighDpiScaling);
+	Application::setAttribute(Qt::AA_EnableHighDpiScaling);
  //
- //    Application app(argc, argv);
-	// app.setAttribute(Qt::AA_DontCreateNativeWidgetSiblings);
+    Application app(argc, argv);
+	app.setAttribute(Qt::AA_DontCreateNativeWidgetSiblings);
 	// InstallCrashHandler();
  //
-	// RecourceHelper::ChangeSkin("default");
+	RecourceHelper::ChangeSkin("default");
+	
+	MainFrame mainWindow;
+	mainWindow.showMaximized();
 	//
-	// MainFrame mainWindow;
-	// mainWindow.showMaximized();
-	//
-	// int ret = app.exec();
- //    return ret;
+	 int ret = app.exec();
+     return ret;
 	
 	osg::ArgumentParser arguments(&argc, argv);
 	
 	// Qt5 is currently crashing and reporting "Cannot make QOpenGLContext current in a different thread" when the viewer is run multi-threaded, this is regression from Qt4
 	osgViewer::ViewerBase::ThreadingModel threadingModel = osgViewer::ViewerBase::SingleThreaded;
 	
-	QApplication app(argc, argv);
 	OsgWidget* viewWidget = new OsgWidget(nullptr, Qt::Widget);
 	// ViewerWidget* viewWidget = new ViewerWidget(nullptr, Qt::Widget, threadingModel);
 	viewWidget->setGeometry( 100, 100, 800, 600 );
diff --git a/src/scene/ui/CompositeHandle.cpp b/src/scene/ui/CompositeHandle.cpp
index 3a62fca5..94cce511 100644
--- a/src/scene/ui/CompositeHandle.cpp
+++ b/src/scene/ui/CompositeHandle.cpp
@@ -1,8 +1,31 @@
 #include "CompositeHandle.h"
+#include <osgEarthUtil/EarthManipulator>
 #include "CompositeWidgetManager.h"
 #include <iostream>
 
 
+#define M_PI 3.14159265358979323846  /* mathematical constant pi */
+
+///Radian to degree conversion factor
+static const double RAD2DEG = 180.0 / M_PI;
+///Degree to radian conversion factor
+static const double DEG2RAD = M_PI / 180.0;
+
+inline double angFix360(double in) {
+	in -= 45.0;
+	if ((in < 0.0) || (in >= 360.0)) {
+		in = fmod(in, 360.0);
+
+		if (in < 0.0)
+			in += 360.0;
+	}
+	return in;
+}
+
+inline bool areEqual(double a, double b, double t = 1.0e-6) {
+	return fabs(a - b) < t;
+}
+
 CompositeHandle::CompositeHandle(CompositeWidgetManager* cw)
 	: _cw(cw), 
 	 _operate(cw->GetcanvasO()),
@@ -17,7 +40,32 @@ CompositeHandle::CompositeHandle(CompositeWidgetManager* cw)
 bool CompositeHandle::handle(const osgGA::GUIEventAdapter&ea, osgGA::GUIActionAdapter& aa)
 {
 	if (ea.getEventType() == osgGA::GUIEventAdapter::FRAME) {
-		
+		constexpr double TWO_DECIMAL_PLACES = 1e-02;
+		double heading = 0.0;
+		osgViewer::View* activeView = static_cast<osgViewer::View*>(aa.asView());
+		const osgEarth::Util::EarthManipulator* manip = dynamic_cast<const osgEarth::Util::EarthManipulator*>(activeView->getCameraManipulator());
+		if (manip != NULL)
+		{
+			manip->getCompositeEulerAngles(&heading);
+			// Convert to degrees
+			heading = angFix360(heading * RAD2DEG);
+		}
+		else
+		{
+			// Fall back to the viewpoint's heading
+			heading = angFix360(manip->getViewpoint().heading()->as(osgEarth::Units::DEGREES));
+		}
+
+		// make sure that anything equivalent to 0.00 is displayed as 0.00
+		if (areEqual(heading, 0.0, TWO_DECIMAL_PLACES) || areEqual(heading, 360.0, TWO_DECIMAL_PLACES)) {
+			heading = 0.0;
+		}
+
+		if (!areEqual(_N->getRotate(), -heading, TWO_DECIMAL_PLACES))
+		{
+			_N->setRotate(-heading);
+			_N->update();
+		}
 	}
 		// compass_->update_();
 
diff --git a/src/scene/ui/OESceneUI.cpp b/src/scene/ui/OESceneUI.cpp
index 25957f5f..227f3c5f 100644
--- a/src/scene/ui/OESceneUI.cpp
+++ b/src/scene/ui/OESceneUI.cpp
@@ -29,13 +29,13 @@ void OESceneUI::InitUI(OsgViewUI* ui) {
 
     compositeWidgetManager_ = new CompositeWidgetManager();
     compositeWidgetManager_->AttachViewUI(ui);
-    zoomManager_ = new ZoomManager(oeScene_);
-    zoomManager_->AttachViewUI(ui);
+    //zoomManager_ = new ZoomManager(oeScene_);
+    //zoomManager_->AttachViewUI(ui);
 
     queryElevationWidget_ = new QueryElevationWidget(oeScene_);
     queryElevationWidget_->AttachViewUI(ui);
 
-    ui->getView()->addEventHandler(new ZoomHandle(zoomManager_, compositeWidgetManager_));
+    //ui->getView()->addEventHandler(new ZoomHandle(zoomManager_, compositeWidgetManager_));
     ui->getView()->addEventHandler(new CompositeHandle(compositeWidgetManager_));
 
     isInit_ = true;
@@ -44,9 +44,9 @@ void OESceneUI::InitUI(OsgViewUI* ui) {
 
 void OESceneUI::OnResize(double width, double height) {
     dyt_check(compositeWidgetManager_);
-    dyt_check(zoomManager_);
+    //dyt_check(zoomManager_);
 
     compositeWidgetManager_->ResetCanvasPosition(width, height);
-    zoomManager_->ResetCanvasPosition(width, height);
+    //zoomManager_->ResetCanvasPosition(width, height);
     queryElevationWidget_->ResetCanvasPosition(width, height);
 }
diff --git a/src/scene/ui/OESceneUI.h b/src/scene/ui/OESceneUI.h
index 4197d2c4..f0c3d4fe 100644
--- a/src/scene/ui/OESceneUI.h
+++ b/src/scene/ui/OESceneUI.h
@@ -22,6 +22,6 @@ private:
 	class OEScene* oeScene_;
 	bool isInit_{ false };
 	osg::ref_ptr<class CompositeWidgetManager> compositeWidgetManager_{ nullptr };
-	osg::ref_ptr<class ZoomManager> zoomManager_{ nullptr };
+	//osg::ref_ptr<class ZoomManager> zoomManager_{ nullptr };
 	osg::ref_ptr<class QueryElevationWidget> queryElevationWidget_{ nullptr };
 };
diff --git a/src/scene/ui/ZoomManager.cpp b/src/scene/ui/ZoomManager.cpp
index 8c11ea14..64b1b807 100644
--- a/src/scene/ui/ZoomManager.cpp
+++ b/src/scene/ui/ZoomManager.cpp
@@ -82,6 +82,8 @@ void ZoomManager::slotZoom() {
 	double dx = val*(-1.0)*(0.0005);// dx不起作用
 	double dy = val*(-1.0)*(0.0005);
 
+	return;
+
 	// dx *= getSettings()->getMouseSensitivity();
 	// dy *= getSettings()->getMouseSensitivity();
 
diff --git a/src/scene/ui/ZoomManager.h b/src/scene/ui/ZoomManager.h
index 5f2d5acd..02516237 100644
--- a/src/scene/ui/ZoomManager.h
+++ b/src/scene/ui/ZoomManager.h
@@ -21,6 +21,9 @@ public:
     osgWidget::Canvas* GetCanvasZoom() {
         return _canvasZoom;
     }
+	osgWidget::Widget* GetBar() const {
+		return _bar;
+	}
 
     void AttachViewUI(class OsgViewUI* ui);
     //
diff --git a/src/scene/ui/ZoomWidget.cpp b/src/scene/ui/ZoomWidget.cpp
index 3b314078..6bd9f78d 100644
--- a/src/scene/ui/ZoomWidget.cpp
+++ b/src/scene/ui/ZoomWidget.cpp
@@ -38,11 +38,14 @@ bool ZoomWidget::mousePush(double x, double y, const  osgWidget::WindowManager*
 	if ("lessen" == _order)
 	{
 		_pZoomManager->zoom = -43;
+		UpdateBarPosition(_pZoomManager->zoom);
 	}
 	else if ("enlargement" == _order)
 	{
 		_pZoomManager->zoom = 43;
+		UpdateBarPosition(_pZoomManager->zoom);
 	}
+
 	setColor(1, 1, 1, 1);
 	return false;
 }
@@ -51,48 +54,55 @@ bool ZoomWidget::mouseRelease(double x, double y, const osgWidget::WindowManager
 {
 	_pZoomManager->state = ZoomManager::MOUSE_RELEASE;
 
-	if ("bar" == _order)
-	{
-		setOrigin(0, 67);
-		getParent()->getByName("bar_")->setOrigin(0, 66);
-		getParent()->resize();
-	}
+	//if ("bar" == _order)
+	//{
+	//	setOrigin(0, 67);
+	//	getParent()->getByName("bar_")->setOrigin(0, 66);
+	//	getParent()->resize();
+	//}
 	_pZoomManager->zoom = 0.0;
+	UpdateBarPosition(_pZoomManager->zoom);
 	setColor(1, 1, 1, 0);
 	return false;
 }
+//
+//bool ZoomWidget::mouseDrag(double x, double y, const  osgWidget::WindowManager* wm)
+//{
+//	if (_order == "bar")
+//	{
+//		_pointX += x;
+//		_pointY += y;
+//
+//		while (_pZoomManager->zoom > 43)
+//			_pZoomManager->zoom = 43;
+//		while (_pZoomManager->zoom < -43)
+//			_pZoomManager->zoom = -43;
+//
+//		if (y > 43 - _pZoomManager->zoom)
+//		{
+//			y = 43 - _pZoomManager->zoom;
+//		}
+//		if (y < -43 - _pZoomManager->zoom)
+//		{
+//			y = -43 - _pZoomManager->zoom;
+//		}
+//
+//		if (_pZoomManager->zoom >= -43 && _pZoomManager->zoom <= 43)
+//		{
+//			/*addOrigin(0, y);
+//			getParent()->getByName("bar_")->addOrigin(0, y);*/
+//			double y1 = _pZoomManager->GetBar()->getOrigin().y();
+//			UpdateBarPosition(y + y1);
+//			_pZoomManager->zoom += y;
+//		}
+//		else {
+//			_pZoomManager->zoom += y;
+//		}
+//	}
+//	return true;
+//}
 
-bool ZoomWidget::mouseDrag(double x, double y, const  osgWidget::WindowManager* wm)
-{
-	if (_order == "bar")
-	{
-		_pointX += x;
-		_pointY += y;
-
-		while (_pZoomManager->zoom > 43)
-			_pZoomManager->zoom = 43;
-		while (_pZoomManager->zoom < -43)
-			_pZoomManager->zoom = -43;
-
-		if (y > 43 - _pZoomManager->zoom)
-		{
-			y = 43 - _pZoomManager->zoom;
-		}
-		if (y < -43 - _pZoomManager->zoom)
-		{
-			y = -43 - _pZoomManager->zoom;
-		}
-
-		if (_pZoomManager->zoom >= -43 && _pZoomManager->zoom <= 43)
-		{
-			addOrigin(0, y);
-			getParent()->getByName("bar_")->addOrigin(0, y);
-			_pZoomManager->zoom += y;
-		}
-		else {
-			_pZoomManager->zoom += y;
-		}
-		getParent()->resize();
-	}
-	return true;
-}
\ No newline at end of file
+void ZoomWidget::UpdateBarPosition(double y) {
+	_pZoomManager->GetBar()->setOrigin(0, 67 + y * 0.5);
+	_pZoomManager->GetCanvasZoom()->update();
+}
diff --git a/src/scene/ui/ZoomWidget.h b/src/scene/ui/ZoomWidget.h
index e4af9b3d..de11dc9b 100644
--- a/src/scene/ui/ZoomWidget.h
+++ b/src/scene/ui/ZoomWidget.h
@@ -25,11 +25,12 @@ public:
 
 	bool mousePush(double, double, const  osgWidget::WindowManager*);
 	bool mouseRelease(double, double, const  osgWidget::WindowManager*);
-	bool mouseDrag(double, double, const  osgWidget::WindowManager*);
+	//bool mouseDrag(double, double, const  osgWidget::WindowManager*);
 
 	std::string GetOrder() { return _order; }
 	double GetPointerX() { return _pointX; }
 	double GetpointerY() { return _pointY; }
+	void UpdateBarPosition(double y);
 
 private:
 	double _pointX;