diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 87c20252..ed7c91e0 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -103,7 +103,7 @@ INCLUDE_DIRECTORIES(
 
  if(MSVC)
 
-   	set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} /Zi") #/Od
+   	set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} /Zi /Od") #/Od
 	set(CMAKE_EXE_LINKER_FLAGS_RELEASE "${CMAKE_EXE_LINKER_FLAGS_RELEASE} /DEBUG /OPT:REF /OPT:ICF")
 
     foreach(var 
@@ -183,7 +183,7 @@ endif()
 SET_TARGET_PROPERTIES(${PROJECT_NAME} PROPERTIES RUNTIME_OUTPUT_DIRECTORY ${ProjectDIR}/bin)
 
 TARGET_LINK_LIBRARIES(${PROJECT_NAME})
-#SET(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} /SUBSYSTEM:CONSOLE")
+SET(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} /SUBSYSTEM:CONSOLE")
 
 add_custom_command(TARGET ${PROJECT_NAME}
     POST_BUILD
diff --git a/src/effects/ConeWave.cpp b/src/effects/ConeWave.cpp
index d6a003d0..63d34061 100644
--- a/src/effects/ConeWave.cpp
+++ b/src/effects/ConeWave.cpp
@@ -116,7 +116,7 @@ void ConeWave::CreateTexturedCone(osg::Geode* geode) {
     fragmentShader->setShaderSource(fragSource);
 
     osg::StateSet* stateset = coneDrawable_->getOrCreateStateSet();
-    stateset->setRenderBinDetails(10000, "RenderBin");
+    stateset->setRenderBinDetails(13, "DepthSortedBin");
     osg::ref_ptr<osg::BlendFunc> blendFunc = new osg::BlendFunc();
     stateset->setAttributeAndModes(blendFunc, osg::StateAttribute::ON);
     osg::ref_ptr<osg::Program> program = new osg::Program();
diff --git a/src/entities/MeshComponent.cpp b/src/entities/MeshComponent.cpp
index c2eb95bc..a6b12f45 100644
--- a/src/entities/MeshComponent.cpp
+++ b/src/entities/MeshComponent.cpp
@@ -52,6 +52,7 @@ bool MeshComponent::LoadNode(const char* mesh) {
         }
     }
     mt_ = mt;
+    //mt_->getOrCreateStateSet()->setMode(GL_LIGHTING, osg::StateAttribute::OFF);
     UpdateLocationAndRotation();
     return true;
 }
diff --git a/src/scene/OEScene.cpp b/src/scene/OEScene.cpp
index a314b27f..73e44aa3 100644
--- a/src/scene/OEScene.cpp
+++ b/src/scene/OEScene.cpp
@@ -19,6 +19,7 @@
 #include "scene/ScopedTimer.h"
 #include "viewer/OsgView.h"
 #include "viewer/OsgCameraManipulator.h"
+#include "scene/ScaleBarHandler.h"
 
 const osgEarth::SpatialReference* g_srs_{ nullptr };
 
diff --git a/src/scene/OEScene.h b/src/scene/OEScene.h
index 7039fb02..2ce39485 100644
--- a/src/scene/OEScene.h
+++ b/src/scene/OEScene.h
@@ -10,6 +10,9 @@
 
 //#include "scene/SkyDome.h"
 
+#include "common/SpdLogger.h"
+#include "config.h"
+
 class OsgView;
 
 class OEScene : public osg::Referenced {
@@ -32,6 +35,11 @@ public:
         return earthMapNode_.get();
     }
 
+    osgEarth::MapNode* GetMapNode(void) const {
+        dyt_check(earthMapNode_.valid());
+        return earthMapNode_;
+    }
+
     void AddToScene(osg::Node* node);
 
 private:
diff --git a/src/scene/ScaleBarHandler.cpp b/src/scene/ScaleBarHandler.cpp
new file mode 100644
index 00000000..1170c034
--- /dev/null
+++ b/src/scene/ScaleBarHandler.cpp
@@ -0,0 +1,18 @@
+#include "scene/ScaleBarHandler.h"
+
+#include <osgViewer/View>
+
+bool ScaleBarHandler::handle(const osgGA::GUIEventAdapter& ea, osgGA::GUIActionAdapter& aa) {
+    if (nullptr == delegate_) {
+        return false;
+    }
+
+    osgViewer::View* view = dynamic_cast<osgViewer::View*>(&aa);
+    if (view) {
+        if (ea.getEventType() == ea.SCROLL || ea.getEventType() == ea.KEYDOWN) {
+            delegate_->OnComputeScale();
+            return false;
+        }
+    }
+    return false;
+}
diff --git a/src/scene/ScaleBarHandler.h b/src/scene/ScaleBarHandler.h
new file mode 100644
index 00000000..d54d29e1
--- /dev/null
+++ b/src/scene/ScaleBarHandler.h
@@ -0,0 +1,24 @@
+#pragma once
+
+#include <osgGA/GUIEventHandler>
+
+class ScaleBarHandler : public osgGA::GUIEventHandler {
+public:
+    class Delegate {
+    public:
+        enum class Units {
+            UNITS_METERS,
+            UNITS_INTL_FEET,
+            UNITS_US_SURVEY_FEET,
+            UNITS_NAUTICAL_MILES
+        };
+    public:
+        virtual ~Delegate() {}
+        virtual void OnComputeScale() = 0;
+    };
+
+public:
+    ScaleBarHandler(Delegate* delegate) : delegate_(delegate) {}
+    bool handle(const osgGA::GUIEventAdapter& ea, osgGA::GUIActionAdapter& aa);
+    Delegate* delegate_;
+};
diff --git a/src/translations/Dyt_zh_CN.ts b/src/translations/Dyt_zh_CN.ts
index 30a28039..0ceb91ed 100644
--- a/src/translations/Dyt_zh_CN.ts
+++ b/src/translations/Dyt_zh_CN.ts
@@ -634,6 +634,11 @@
         <source>Matlab File</source>
         <translation type="unfinished"></translation>
     </message>
+    <message>
+        <location filename="../ui/MainWindow.cpp" line="207"/>
+        <source>name: 5year 0412</source>
+        <translation type="unfinished"></translation>
+    </message>
 </context>
 <context>
     <name>ModelBrowser</name>
@@ -1262,18 +1267,18 @@
 <context>
     <name>QtOsgViewWidget</name>
     <message>
-        <location filename="../viewer/QtOsgViewWidget.cpp" line="123"/>
-        <location filename="../viewer/QtOsgViewWidget.cpp" line="131"/>
+        <location filename="../viewer/QtOsgViewWidget.cpp" line="389"/>
+        <location filename="../viewer/QtOsgViewWidget.cpp" line="397"/>
         <source>warning</source>
         <translation>警告</translation>
     </message>
     <message>
-        <location filename="../viewer/QtOsgViewWidget.cpp" line="123"/>
+        <location filename="../viewer/QtOsgViewWidget.cpp" line="389"/>
         <source>default workspace failed</source>
         <translation>加载默认空间失败</translation>
     </message>
     <message>
-        <location filename="../viewer/QtOsgViewWidget.cpp" line="131"/>
+        <location filename="../viewer/QtOsgViewWidget.cpp" line="397"/>
         <source>open dyt file failed</source>
         <translation>打开空间文件失败</translation>
     </message>
diff --git a/src/ui/MainWindow.cpp b/src/ui/MainWindow.cpp
index eed403af..3b5e1d34 100644
--- a/src/ui/MainWindow.cpp
+++ b/src/ui/MainWindow.cpp
@@ -204,7 +204,7 @@ void MainWindow::InitUI() {
     matlabFileDlg_->AttachDock(matlabDock);
     m_mapDockWidget.insert("Matlab", matlabDock);
 
-    //ui->discript->setText(tr("name: 5year 0412"));
+    ui->discript->setText(tr("name: 5year 0412"));
     //ui->status->setText(tr("start: no start"));
 
     InitDockLayout();
diff --git a/src/viewer/QtOsgViewWidget.cpp b/src/viewer/QtOsgViewWidget.cpp
index 190f45d3..e8516841 100644
--- a/src/viewer/QtOsgViewWidget.cpp
+++ b/src/viewer/QtOsgViewWidget.cpp
@@ -15,6 +15,7 @@
 
 #include <osgEarth/EarthManipulator>
 #include <osgEarth/Viewpoint>
+#include <osgEarth/GeoMath>
 
 #include "config.h"
 #include "app/Application.h"
@@ -26,8 +27,146 @@
 #include "scene/OsgScene.h"
 #include "workspace/WorkSpace.h"
 #include "workspace/WorkSpaceManager.h"
+#include "scene/SceneContent.h"
 #include "ui/MainFrame.h"
 
+
+double normalizeScaleMeters(double meters) {
+    if (meters <= 3) {
+        meters = 1;
+    } else if (meters <= 7.5) {
+        meters = 5;
+    } else if (meters <= 15) {
+        meters = 10;
+    } else if (meters <= 35) {
+        meters = 20;
+    } else if (meters <= 75) {
+        meters = 50;
+    } else if (meters <= 150) {
+        meters = 100;
+    } else if (meters <= 350) {
+        meters = 200;
+    } else if (meters <= 750) {
+        meters = 500;
+    } else if (meters <= 1500) {
+        meters = 1000;
+    } else if (meters <= 3500) {
+        meters = 2000;
+    } else if (meters <= 7500) {
+        meters = 5000;
+    } else if (meters <= 15000) {
+        meters = 10000;
+    } else if (meters <= 35000) {
+        meters = 20000;
+    } else if (meters <= 55000) {
+        meters = 50000;
+    } else if (meters <= 150000) {
+        meters = 100000;
+    } else if (meters <= 350000) {
+        meters = 200000;
+    } else if (meters <= 750000) {
+        meters = 500000;
+    } else if (meters <= 1500000) {
+        meters = 1000000;
+    } else {
+        meters = 2000000;
+    }
+    return meters;
+}
+
+double normalizeScaleFeet(double feet) {
+    double feetPerMile = 5280.0;
+    if (feet <= 7.5) {
+        feet = 5;
+    } else if (feet <= 15) {
+        feet = 10;
+    } else if (feet <= 35) {
+        feet = 20;
+    } else if (feet <= 75) {
+        feet = 50;
+    } else if (feet <= 150) {
+        feet = 100;
+    } else if (feet <= 350) {
+        feet = 200;
+    } else if (feet <= 750) {
+        feet = 500;
+    } else if (feet <= 1500) {
+        feet = 1000;
+    } else if (feet <= 3640) {
+        feet = 2000;
+    } else if (feet <= 1.5 * feetPerMile) {
+        feet = 1 * feetPerMile;
+    } else if (feet <= 3.5 * feetPerMile) {
+        feet = 2 * feetPerMile;
+    } else if (feet <= 7.5 * feetPerMile) {
+        feet = 5 * feetPerMile;
+    } else if (feet <= 15 * feetPerMile) {
+        feet = 10 * feetPerMile;
+    } else if (feet <= 35 * feetPerMile) {
+        feet = 20 * feetPerMile;
+    } else if (feet <= 75 * feetPerMile) {
+        feet = 50 * feetPerMile;
+    } else if (feet <= 150 * feetPerMile) {
+        feet = 100 * feetPerMile;
+    } else if (feet <= 350 * feetPerMile) {
+        feet = 200 * feetPerMile;
+    } else if (feet <= 750 * feetPerMile) {
+        feet = 500 * feetPerMile;
+    } else if (feet <= 1500 * feetPerMile) {
+        feet = 1000 * feetPerMile;
+    } else {
+        feet = 2000 * feetPerMile;
+    }
+    return feet;
+}
+
+double normalizeScaleNauticalMiles(double nmi) {
+    //double feetPerMile = 6076.12;
+    if (nmi <= 0.0015) {
+        nmi = 0.001;
+    } else if (nmi <= 0.0035) {
+        nmi = 0.002;
+    } else if (nmi <= 0.0075) {
+        nmi = 0.005;
+    } else if (nmi <= 0.015) {
+        nmi = 0.01;
+    } else if (nmi <= 0.035) {
+        nmi = 0.02;
+    } else if (nmi <= 0.075) {
+        nmi = 0.05;
+    } else if (nmi <= 0.15) {
+        nmi = 0.1;
+    } else if (nmi <= 0.35) {
+        nmi = 0.2;
+    } else if (nmi <= 0.75) {
+        nmi = 0.5;
+    } else if (nmi <= 1.5) {
+        nmi = 1;
+    } else if (nmi <= 3.5) {
+        nmi = 2;
+    } else if (nmi <= 7.5) {
+        nmi = 5;
+    } else if (nmi <= 15) {
+        nmi = 10;
+    } else if (nmi <= 35) {
+        nmi = 20;
+    } else if (nmi <= 75) {
+        nmi = 50;
+    } else if (nmi <= 150) {
+        nmi = 100;
+    } else if (nmi <= 350) {
+        nmi = 200;
+    } else if (nmi <= 750) {
+        nmi = 500;
+    } else if (nmi <= 1500) {
+        nmi = 1000;
+    } else {
+        nmi = 2000;
+    }
+    return nmi;
+}
+
+
 QtOsgViewWidget::QtOsgViewWidget(QWidget* parent)
     : QWidget(parent) {
     LOG_INFO("actor, self={}", fmt::ptr(this));
@@ -55,6 +194,131 @@ void QtOsgViewWidget::keyReleaseEvent(QKeyEvent* event) {
     view_->KeyRelease(event);
 }
 
+void QtOsgViewWidget::OnComputeScale() {
+    osgEarth::MapNode* mapNode = activeScene_->GetMapNode();
+    if (nullptr == mapNode || nullptr == mapNode->getTerrain()) {
+        return;
+    }
+    dyt_check(nullptr != view_);
+
+    float x = 0.0f, y = 0.0f;
+    osg::Vec3d world1, world2;
+    if (!mapNode->getTerrain()->getWorldCoordsUnderMouse(view_->GetView(), x, y, world1)) {
+        emit signalScaleBarInfo("");
+        return;
+    }
+    x += devicePixelRatio_;
+    if (!mapNode->getTerrain()->getWorldCoordsUnderMouse(view_->GetView(), x, y, world2)) {
+        emit signalScaleBarInfo("");
+        return;
+    }
+
+#if 0
+    TRACE("w1: %g %g %g w2: %g %g %g",
+        world1.x(), world1.y(), world1.z(),
+        world2.x(), world2.y(), world2.z());
+#endif
+
+    double meters;
+    double radius = 6378137.0;
+    dyt_check(nullptr != g_srs_);
+    radius = g_srs_->getEllipsoid().getRadiusEquator();
+
+    if (!g_srs_->isGeocentric() ) {
+        //        TRACE("Map is geographic");
+        // World cords are already lat/long
+        // Compute great circle distance
+        meters = osgEarth::GeoMath::distance(world1, world2, g_srs_);
+    } else {
+        osgEarth::GeoPoint mapPoint1, mapPoint2;
+        mapPoint1.fromWorld(g_srs_, world1);
+        mapPoint1.makeGeographic();
+        mapPoint2.fromWorld(g_srs_, world2);
+        mapPoint2.makeGeographic();
+        // Compute great circle distance
+        meters = osgEarth::GeoMath::distance(osg::DegreesToRadians(mapPoint1.y()),
+            osg::DegreesToRadians(mapPoint1.x()),
+            osg::DegreesToRadians(mapPoint2.y()),
+            osg::DegreesToRadians(mapPoint2.x()),
+            radius);
+    }
+
+    double scale = meters / devicePixelRatio_;
+    double pixelWidth = devicePixelRatio_ * 2.0;
+    // 1mi = 5280 feet
+    //double scaleMiles = scale / 1609.344; // International mile = 1609.344m
+    //double scaleNauticalMiles = scale / 1852.0; // nautical mile = 1852m
+    //double scaleUSSurveyMiles = scale / 1609.347218694; // US survey mile = 5280 US survey feet
+    //double scaleUSSurveyFeet = scale * 3937.0/1200.0; // US survey foot = 1200/3937 m
+#if 0
+    TRACE("m: %g px: %g m/px: %g", meters, pixelWidth, scale);
+#endif
+   /* switch (scaleUnits_) {
+    case ScaleBarHandler::Delegate::Units::UNITS_NAUTICAL_MILES: {
+        double nmi = meters / 1852.0;
+        scale = nmi / devicePixelRatio_;
+        nmi = normalizeScaleNauticalMiles(nmi);
+        pixelWidth = nmi / scale;
+        if (_scaleLabel.valid()) {
+            _scaleLabel->setText(osgEarth::Stringify()
+                << nmi
+                << " nmi");
+        }
+    } break;
+    case ScaleBarHandler::Delegate::Units::UNITS_US_SURVEY_FEET: {
+        double feet = meters * 3937.0 / 1200.0;
+        scale = feet / pixelWidth;
+        feet = normalizeScaleFeet(feet);
+        pixelWidth = feet / scale;
+        if (_scaleLabel.valid()) {
+            if (feet >= 5280) {
+                _scaleLabel->setText(osgEarth::Stringify()
+                    << feet / 5280.0
+                    << " miUS");
+            } else {
+                _scaleLabel->setText(osgEarth::Stringify()
+                    << feet
+                    << " ftUS");
+            }
+        }
+    } break;
+    case ScaleBarHandler::Delegate::Units::UNITS_INTL_FEET: {
+        double feet = 5280.0 * meters / 1609.344;
+        scale = feet / pixelWidth;
+        feet = normalizeScaleFeet(feet);
+        pixelWidth = feet / scale;
+        if (_scaleLabel.valid()) {
+            if (feet >= 5280) {
+                _scaleLabel->setText(osgEarth::Stringify()
+                    << feet / 5280.0
+                    << " mi");
+            } else {
+                _scaleLabel->setText(osgEarth::Stringify()
+                    << feet
+                    << " ft");
+            }
+        }
+    } break;
+    case ScaleBarHandler::Delegate::Units::UNITS_METERS:
+    default: {
+        meters = normalizeScaleMeters(meters);
+        pixelWidth = meters / scale;
+        if (_scaleLabel.valid()) {
+            if (meters >= 1000) {
+                _scaleLabel->setText(osgEarth::Stringify()
+                    << meters / 1000.0
+                    << " km");
+            } else {
+                _scaleLabel->setText(osgEarth::Stringify()
+                    << meters
+                    << " m");
+            }
+        }
+    } break;
+    }
+   */
+}
+
 void QtOsgViewWidget::Initialize(void) {
     if (view_) {
         LOG_INFO("view is created");
@@ -102,6 +366,8 @@ void QtOsgViewWidget::Initialize(void) {
 
     OsgCameraManipulator* cameraManipulator = new OsgCameraManipulator(manipulator, this);
     view_->Initialize(cameraManipulator);
+
+    //activeScene_
 }
 
 void QtOsgViewWidget::Uninitialize(void) {
@@ -151,8 +417,8 @@ void QtOsgViewWidget::resizeEvent(QResizeEvent* event) {
         return;
     }
 
-    double pixelRatio = screen()->devicePixelRatio();
+    devicePixelRatio_ = screen()->devicePixelRatio();
     const QSize& size = event->size();
-    view_->Resize(0, 0, size.width() * pixelRatio, size.height() * pixelRatio);
+    view_->Resize(0, 0, size.width() * devicePixelRatio_, size.height() * devicePixelRatio_);
 }
 
diff --git a/src/viewer/QtOsgViewWidget.h b/src/viewer/QtOsgViewWidget.h
index 21970ff6..02a153e9 100644
--- a/src/viewer/QtOsgViewWidget.h
+++ b/src/viewer/QtOsgViewWidget.h
@@ -4,6 +4,7 @@
 #include <QWidget>
 
 #include "scene/OEScene.h"
+#include "scene/ScaleBarHandler.h"
 
 
 class QMouseEvent;
@@ -12,7 +13,7 @@ class QKeyEvent;
 class QInputEvent;
 class QResizeEvent;
 
-class QtOsgViewWidget : public QWidget {
+class QtOsgViewWidget : public QWidget, public ScaleBarHandler::Delegate {
     Q_OBJECT
 public:
     explicit QtOsgViewWidget(QWidget* parent = nullptr);
@@ -23,6 +24,8 @@ public:
         return nullptr;
     }
 
+    void OnComputeScale() override;
+
     void Initialize(void);
     void Uninitialize(void);
 
@@ -33,6 +36,7 @@ public:
 
 signals:
     void signalResetWorkSpace();
+    void signalScaleBarInfo(const QString&);
 
 protected:
 
@@ -45,4 +49,6 @@ private:
     class OsgView* view_{ nullptr };
     osg::ref_ptr<OEScene> activeScene_;
     class WorkSpace* workspace_{ nullptr };
+    ScaleBarHandler::Delegate::Units scaleUnits_{ ScaleBarHandler::Delegate::Units::UNITS_METERS };
+    float devicePixelRatio_{ 1.0f };
 };
\ No newline at end of file