增加回到home视点的方法

MJYCo-Ltd · Apr 7, 2021 · 368fe01 · 368fe01
1 parent cb7fffd
commit 368fe01
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Showing 8 changed files with 208 additions and 81 deletions.
diff --git a/Inc/Inner/IOsgViewPoint.h b/Inc/Inner/IOsgViewPoint.h
@@ -9,8 +9,9 @@ class IOsgViewPoint
     /// 设置视点状态
     enum ViewPointType
     {
-        View_2D,  /// 二维查看
-        View_3D,  /// 三维查看
+        View_2DMap,  /// 二维查看
+        View_3DMap,  /// 三维查看
+        View_Osg,    /// 不使用地图的时候的操作器
         View_User,/// 用户查看
         View_Node /// 跟踪节点
     };

diff --git a/LoadMap/mainwindow.cpp b/LoadMap/mainwindow.cpp
@@ -590,6 +590,8 @@ void MainWindow::on_action_triggered()
 
 void MainWindow::on_action_2_triggered()
 {
+    m_pSceneGraph->GetMainWindow()->GetMainViewPoint()->HomeViewPoint();
+    return;
 //    SceneColor color;
 //    color.fG=color.fB=0.0f;
 //    pSatellite->SetOribitColor(color);

diff --git a/SceneCore/SceneGraph/DealViewPortChange.h b/SceneCore/SceneGraph/DealViewPortChange.h
@@ -84,4 +84,37 @@ class ChangeManipulator:public osg::Operation
     osg::ref_ptr<osgGA::CameraManipulator> m_pManipulator;
 };
 
+/// 更改视点
+class ChangeViewPoint:public osg::Operation
+{
+public:
+    ChangeViewPoint(osgGA::CameraManipulator* pManipulator,SceneViewPoint viewPoint,IOsgViewPoint::ViewPointType type):
+        m_pManipulator(pManipulator),
+        m_stViewPoint(viewPoint),
+        m_emPointType(type){}
+
+    void operator()(osg::Object*)
+    {
+        m_pManipulator;
+    }
+private:
+    osg::ref_ptr<osgGA::CameraManipulator> m_pManipulator;
+    SceneViewPoint m_stViewPoint;
+    IOsgViewPoint::ViewPointType  m_emPointType;
+};
+
+/// 更改视点
+class HomeViewPoint:public osg::Operation
+{
+public:
+    HomeViewPoint(osgGA::CameraManipulator* pManipulator):m_pManipulator(pManipulator){}
+
+    void operator()(osg::Object*)
+    {
+        m_pManipulator->home(0);
+    }
+private:
+    osg::ref_ptr<osgGA::CameraManipulator> m_pManipulator;
+};
+
 #endif // DEALVIEWPORTCHANGE_H
diff --git a/SceneCore/SceneGraph/MyEarthManipulator.cpp b/SceneCore/SceneGraph/MyEarthManipulator.cpp
@@ -21,14 +21,18 @@ void CMyEarthManipulator::ChangeMap(MapType emType)
         {
         case MAP_3D:
             getSettings()->setThrowingEnabled(true);
-            getSettings()->setThrowDecayRate(0.1);
+            getSettings()->setThrowDecayRate(0.009);
             getSettings()->setMinMaxDistance(1,DBL_MAX);
             getSettings()->setLockAzimuthWhilePanning(false);
             getSettings()->setTerrainAvoidanceEnabled(true);
             break;
         case MAP_2D:
             getSettings()->setMinMaxDistance(10,m_dMaxDistance);
-            AdjustViewPoint();
+            auto vp = getViewpoint();
+            if(AdjustViewPoint(vp))
+            {
+                setViewpoint(vp);
+            }
             break;
         }
     }
@@ -91,10 +95,9 @@ void CMyEarthManipulator::pan(double dx, double dy)
             vp.focalPoint()->y() = m_extent.yMin();
         }
 
+        AdjustViewPoint(vp);
         /// 设置视点位置
         setViewpoint(vp);
-
-        AdjustViewPoint();
     }
 }
 
@@ -115,18 +118,21 @@ void CMyEarthManipulator::zoom(double dx, double dy, osg::View *view)
     osgEarth::Util::EarthManipulator::zoom(-dx,-dy,view);
     if(MAP_2D == m_emType)
     {
-        AdjustViewPoint();
+        auto vp = getViewpoint();
+        if(AdjustViewPoint(vp))
+        {
+            setViewpoint(vp);
+        }
     }
 }
 
 /// 调整视点
-void CMyEarthManipulator::AdjustViewPoint()
+bool CMyEarthManipulator::AdjustViewPoint(osgEarth::Viewpoint& vp)
 {
     if(!m_bInit)
     {
-        return;
+        return(false);
     }
-    osgEarth::Viewpoint vp = getViewpoint();
 
     const double YOffet = vp.focalPoint()->y();
     const double EyeHeight = vp.range()->getValue();
@@ -135,31 +141,54 @@ void CMyEarthManipulator::AdjustViewPoint()
     if(YOffet > 0 && (YOffet + EyeHeight*m_dFactor) > m_extent.yMax())
     {
         vp.focalPoint()->y() = DISTANCE;
-        setViewpoint(vp);
+        return(true);
     }
     else if(YOffet < 0 && (-YOffet + EyeHeight*m_dFactor) > m_extent.yMax())
     {
         vp.focalPoint()->y() = -DISTANCE;
-        setViewpoint(vp);
+        return(true);
     }
 
+    return(false);
 }
 
 /// 初始化视点
-void CMyEarthManipulator::InitViewPoint()
+void CMyEarthManipulator::InitHomePoint(const SceneViewPoint &homePoint)
 {
     osgEarth::Viewpoint vp;
-    auto srs = osgEarth::SpatialReference::get("wgs84");
+    vp.focalPoint()= osgEarth::GeoPoint(osgEarth::SpatialReference::get("wgs84"),
+                                        homePoint.stPos.fX,homePoint.stPos.fY,homePoint.stPos.fZ);
+    vp.heading()->set(homePoint.fAzimuth,osgEarth::Units::DEGREES);
+    vp.range()->set(homePoint.fDistance,osgEarth::Units::METERS);
 
+    if(MAP_2D == m_emType)
+    {
+        AdjustViewPoint(vp);
+    }
+    else
+    {
+        vp.pitch()->set(homePoint.fElev-90.,osgEarth::Units::DEGREES);
+    }
 
-    vp.focalPoint()= osgEarth::GeoPoint(srs,118.8,32.1,0);
-    vp.heading()->set(0,osgEarth::Units::DEGREES);
-    vp.pitch()->set(-90,osgEarth::Units::DEGREES);
-    vp.range()->set(12000,osgEarth::Units::KILOMETERS);
     setHomeViewpoint(vp);
+}
+
+/// 设置视点
+void CMyEarthManipulator::SetViewPoint(const SceneViewPoint &viewPoint,double dTimes)
+{
+    osgEarth::Viewpoint vp;
+    vp.focalPoint()= osgEarth::GeoPoint(osgEarth::SpatialReference::get("wgs84"),
+                                        viewPoint.stPos.fX,viewPoint.stPos.fY,viewPoint.stPos.fZ);
+    vp.heading()->set(viewPoint.fAzimuth,osgEarth::Units::DEGREES);
+    vp.range()->set(viewPoint.fDistance,osgEarth::Units::METERS);
 
     if(MAP_2D == m_emType)
     {
-        AdjustViewPoint();
+        AdjustViewPoint(vp);
+    }
+    else
+    {
+        vp.pitch()->set(0-viewPoint.fElev,osgEarth::Units::DEGREES);
     }
+    setViewpoint(vp,dTimes);
 }
diff --git a/SceneCore/SceneGraph/MyEarthManipulator.h b/SceneCore/SceneGraph/MyEarthManipulator.h
@@ -10,6 +10,7 @@
 #endif
 
 #include <Plot/Map/IMap.h>
+#include <SceneGraph/ViewType.h>
 
 class CMyEarthManipulator : public osgEarth::Util::EarthManipulator
 {
@@ -30,14 +31,20 @@ class CMyEarthManipulator : public osgEarth::Util::EarthManipulator
     /**
      * @brief 初始化视点
      */
-    void InitViewPoint();
+    void InitHomePoint(const SceneViewPoint& homePoint);
+
+    /**
+     * @brief 设置视点
+     * @param viewPoint
+     */
+    void SetViewPoint(const SceneViewPoint& viewPoint, double dTimes);
 
 protected:
 
     /**
      * @brief 调整视点
      */
-    void AdjustViewPoint();
+    bool AdjustViewPoint(osgEarth::Viewpoint &vp);
 
 private:
     MapType m_emType;

diff --git a/SceneCore/SceneGraph/QtSceneGraph.cpp b/SceneCore/SceneGraph/QtSceneGraph.cpp
@@ -173,11 +173,11 @@ void QtSceneGraph::InitSceneGraph()
         {
             if(SCENEGRAPH_2D == m_emType)
             {
-                pViewPoint->ViewPointTypeChanged(IOsgViewPoint::View_2D);
+                pViewPoint->ViewPointTypeChanged(IOsgViewPoint::View_2DMap);
             }
             else
             {
-                pViewPoint->ViewPointTypeChanged(IOsgViewPoint::View_3D);
+                pViewPoint->ViewPointTypeChanged(IOsgViewPoint::View_3DMap);
             }
 
             m_pMap->AsOsgSceneNode()->Init();