在ArcGlobe三维环境中进行数据查询2（模型定位显示）

 void dataGridView1_CellClick(object sender,DataGridViewCellEventArgs e)

        {

 

           //取查询条件

            StringstrCode = dataGridView1.Rows[e.RowIndex].Cells[1].Value.ToString();

            if (strCode== String.Empty)

            {

               return;

            }

 

           //取查询图层名称

            StringLayerName = this.comboBox1.SelectedItem.ToString();

           //获得当前视图

            IScene scene= this.axGlobe.Globe.GlobeDisplay.Scene;

 

           IQueryFilter pQueryFilter = new QueryFilterClass();

            IActiveViewpActiveView;

            pActiveView= (IActiveView)scene;

 

            //清空上一次选择

           scene.ClearSelection();

 

           IFeatureLayer pFeatureLayer;

            pFeatureLayer= (IFeatureLayer)scene.get_Layer(GetLayerId(LayerName, scene));

           pQueryFilter.WhereClause = “NAME=”" + strCode + “”";

           IFeatureCursor pFeatureCursor;

           pFeatureCursor = pFeatureLayer.FeatureClass.Search(pQueryFilter, false);

            IFeaturepFeature;

            pFeature =pFeatureCursor.NextFeature();

            while(pFeature != null)

            {

               scene.SelectFeature(pFeatureLayer, pFeature);

               pFeature = pFeatureCursor.NextFeature();

            }

           ESRI.ArcGIS.Carto.ILayer layer =(ESRI.ArcGIS.Carto.ILayer)scene.get_Layer(GetLayerId(LayerName, scene));

            // Get theline feature selected in the layer

           ESRI.ArcGIS.Carto.IFeatureLayer featureLayer = (ESRI.ArcGIS.Carto.IFeatureLayer)layer;

           ESRI.ArcGIS.Carto.IFeatureSelection featureSelection =(ESRI.ArcGIS.Carto.IFeatureSelection)layer;

 

           ESRI.ArcGIS.Geodatabase.ISelectionSet selectionSet =featureSelection.SelectionSet;

           ESRI.ArcGIS.Geodatabase.IFeatureClass featureClass = featureLayer.FeatureClass;

            stringshapeField = featureClass.ShapeFieldName;

           ESRI.ArcGIS.Geodatabase.ISpatialFilter spatialFilterCls = newESRI.ArcGIS.Geodatabase.SpatialFilterClass();

 

           ESRI.ArcGIS.Geometry.ISpatialReference spatialReference =scene.SpatialReference;

           spatialFilterCls.GeometryField = shapeField;

           spatialFilterCls.set_OutputSpatialReference(shapeField, spatialReference);

           ESRI.ArcGIS.Geodatabase.ICursor cursor;

           selectionSet.Search(spatialFilterCls, true, out cursor);

           ESRI.ArcGIS.Geodatabase.IFeatureCursor featureCursor =(ESRI.ArcGIS.Geodatabase.IFeatureCursor)cursor;

 

           ESRI.ArcGIS.Geodatabase.IFeature SFeature;

            SFeature =featureCursor.NextFeature();

           ESRI.ArcGIS.Geometry.IEnvelope envelope = SFeature.Shape.Envelope;

           ESRI.ArcGIS.Analyst3D.ICamera camera =this.axGlobe.Globe.GlobeDisplay.ActiveViewer.Camera;

           ESRI.ArcGIS.GlobeCore.IGlobeCamera globeCamera =(ESRI.ArcGIS.GlobeCore.IGlobeCamera)camera;

           ESRI.ArcGIS.Analyst3D.ISceneViewer sceneViewer =this.axGlobe.Globe.GlobeDisplay.ActiveViewer;

           globeCamera.OrientationMode =esriGlobeCameraOrientationMode.esriGlobeCameraOrientationGlobal;

            IPointtarget = new PointClass();

           target.PutCoords(0, 0);

            target.Z =0;

           axGlobe.Globe.GlobeDisplay.ActiveViewer.Camera.Target = target;

           axGlobe.Globe.GlobeDisplay.ActiveViewer.Camera.ViewingDistance = 1.5;

           axGlobe.Globe.GlobeDisplay.ActiveViewer.Camera.ViewFieldAngle = 8.5;

           axGlobe.Globe.GlobeDisplay.ActiveViewer.Camera.RollAngle = 0.0;

            axGlobe.Globe.GlobeDisplay.ActiveViewer.Camera.RecalcUp();

 

            //定位

           globeCamera.SetToZoomToExtents(envelope, this.axGlobe.Globe, sceneViewer);

 

           //显示比例调整

            double vfa =this.axGlobe.Globe.GlobeDisplay.ActiveViewer.Camera.ViewFieldAngle;

           axGlobe.Globe.GlobeDisplay.ActiveViewer.Camera.ViewFieldAngle = vfa * 6;

           axGlobe.Globe.GlobeDisplay.ActiveViewer.Redraw(false);

        }