ArcGlobe三维开发之十九——GlobeControl与MapControl的二三维联动
实现思路:2D—>3D,将当前MapControl的可视范围设置为GlobeControl中Extent属性的值;3D--->2D。获取当前GlobeControl的target和observer的Camera的BLH以及当前的图形显示范围,并将其设置为Mapcontrol的显示范围。
中心点可取observer、target或者二者的中心点均可。
所有代码例如以下:
#region 二三维切换及联动 //3D视图 private void tabItem_3D_Click (object sender,EventArgs e) { axToolbarControl_Map.Visible = false; axToolbarControl_Globe.Visible = true; axTOCControl_Globe.Visible = true; axTOCControl_Map.Visible = false; statusStripXYZ.Visible = true; statusStripXY.Visible = false; //2D—>3D联动 IActiveView avtiveView = m_globeControl.Globe as IActiveView; avtiveView.Extent = axMapControl1.ActiveView.ScreenDisplay.DisplayTransformation.VisibleBounds; avtiveView.Refresh(); } //2D视图 private void tabItem_2D_Click (object sender,EventArgs e) { axToolbarControl_Globe.Visible = false; axToolbarControl_Map.Visible = true; axTOCControl_Globe.Visible = false; axTOCControl_Map.Visible = true; statusStripXYZ.Visible = false; statusStripXY.Visible = true; Synchronization_3DTo2D(); } //3D—>2D private void Synchronization_3DTo2D () { IScene scene = m_globeControl.Globe.GlobeDisplay.Scene; ISceneViewer sceneViewer = m_globeControl.GlobeDisplay.ActiveViewer; IGlobeCamera globeCamera = sceneViewer.Camera as IGlobeCamera; IGlobeViewUtil globeViewUtil = globeCamera as IGlobeViewUtil; IEnvelope pEnv = new EnvelopeClass(); globeViewUtil.QueryVisibleGeographicExtent(pEnv);//得到GlobeControl的Extent if(pEnv == null) { return; } IPoint observerPoint = new PointClass(); IPoint targetPoint = new PointClass(); //获取Target和observer的坐标 GetObserverTarget(out observerPoint,out targetPoint); IPoint point = new PointClass(); (point as IZAware).ZAware = true; point.X = (observerPoint.X + targetPoint.X) / 2; point.Y = (observerPoint.Y + targetPoint.Y) / 2; point.Z = (observerPoint.Z + targetPoint.Z) / 2; pEnv.CenterAt(point); axMapControl1.ActiveView.ScreenDisplay.DisplayTransformation.VisibleBounds = pEnv; axMapControl1.ActiveView.PartialRefresh(esriViewDrawPhase.esriViewGeography,null,null); } //获取target和observer的坐标 private void GetObserverTarget (out IPoint ObserverPoint,out IPoint TargetPoint) { IGlobeDisplay m_GlobeDisplay = m_globeControl.Globe.GlobeDisplay; ISceneViewer pSceneViewer = m_GlobeDisplay.ActiveViewer; ICamera pCamera = pSceneViewer.Camera; IGlobeCamera pGlobeCamera = m_GlobeDisplay.ActiveViewer.Camera as IGlobeCamera; ObserverPoint = null; TargetPoint = null; //获取observer的BLH double obsLat,obsLon,obsAltKms; pGlobeCamera.GetObserverLatLonAlt(out obsLat,out obsLon,out obsAltKms); //获取target的BLH double tgtLat,tgtLon,tgtAltKms; pGlobeCamera.GetTargetLatLonAlt(out tgtLat,out tgtLon,out tgtAltKms); ObserverPoint = new PointClass(); (ObserverPoint as IZAware).ZAware = true; ObserverPoint.PutCoords(obsLon,obsLat); ObserverPoint.Z = obsAltKms; TargetPoint = new PointClass(); (TargetPoint as IZAware).ZAware = true; TargetPoint.PutCoords(tgtLon,tgtLat); TargetPoint.Z = tgtAltKms; } #endregion
posted on 2017-06-21 20:41 yjbjingcha 阅读(183) 评论(0) 编辑 收藏 举报