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ArcEngine加载SDE中的栅格数据的问题
在加载矢量数据时直接转到IFeatureWorkspace接口即可,但是在加载栅格数据时要转到IRasterWorkspaceEx接口。效果图如下,双击即可添加到Globe中。
代码如下:
public partial class SDEDataViewer : DevComponents.DotNetBar.Office2007Form { #region 私有变量 private IWorkspace sdeWorkSpace; //sde工作控件 private IGlobeControl globecontrol; private string selectedVectorName;//待添加矢量 private string selectedRasterName; #endregion #region 构造函数 public SDEDataViewer(IGlobeControl m_globecontrol , IWorkspace workspace) { this.sdeWorkSpace = workspace; this.globecontrol = m_globecontrol; InitializeComponent(); } #endregion #region load private void SDEDataViewer_Load(object sender , EventArgs e) { IAoInitialize initAO = new AoInitializeClass(); initAO.Initialize((esriLicenseProductCode.esriLicenseProductCodeEngineGeoDB)); loadData(); } //获取所有数据 private void loadData() { listView_vector.GridLines = true;//表格是否显示网格线 listView_vector.FullRowSelect = true;//是否选中整行 listView_vector.View = View.Details;//设置显示方式 listView_vector.Scrollable = true;//是否自动显示滚动条 listView_vector.MultiSelect = false;//是否可以选择多行 listView_raster.GridLines = true; listView_raster.FullRowSelect = true; listView_raster.View = View.Details; listView_raster.Scrollable = true; listView_raster.MultiSelect = false; //添加表头(列) listView_vector.Columns.Add("要素名称" , 150 , HorizontalAlignment.Center); listView_vector.Columns.Add("要素类型" , 100 , HorizontalAlignment.Center); listView_raster.Columns.Add("数据名称" , 150 , HorizontalAlignment.Center); listView_raster.Columns.Add("数据类型" , 100 , HorizontalAlignment.Center); try { IEnumDataset enumDataset = sdeWorkSpace.get_Datasets(esriDatasetType.esriDTAny); IDataset dataset = null; while ((dataset = enumDataset.Next()) != null) { if (dataset.Type == esriDatasetType.esriDTFeatureClass) { ListViewItem item = new ListViewItem(); item.SubItems.Clear(); item.SubItems[0].Text = dataset.Name; string strFeatureType = GetFeatureType(dataset.Name); item.SubItems.Add(strFeatureType); listView_vector.Items.Add(item); } else if (dataset.Type == esriDatasetType.esriDTRasterDataset) { ListViewItem item = new ListViewItem(); item.SubItems.Clear(); item.SubItems[0].Text = dataset.Name; item.SubItems.Add("栅格数据集"); listView_raster.Items.Add(item); } } } catch (System.Exception ex) { MessageBox.Show(ex.Message); } } //获取要素类型 private string GetFeatureType(string pDataSetName) { string featureType = ""; IFeatureWorkspace pFeatureWS = sdeWorkSpace as IFeatureWorkspace; IFeatureClass featureClass = pFeatureWS.OpenFeatureClass(pDataSetName); switch (featureClass.ShapeType) { case esriGeometryType.esriGeometryPoint: featureType = "点要素"; break; case esriGeometryType.esriGeometryPolyline: featureType = "线要素"; break; case esriGeometryType.esriGeometryPolygon: featureType = "面要素"; break; default: break; } // System.Runtime.InteropServices.Marshal.ReleaseComObject(pFeatureWS); System.Runtime.InteropServices.Marshal.ReleaseComObject(featureClass); return featureType; } #endregion #region 添加数据 //添加矢量 private void listView_vector_MouseDoubleClick(object sender , MouseEventArgs e) { IFeatureClass featureClass = (sdeWorkSpace as IFeatureWorkspace).OpenFeatureClass(selectedVectorName); IFeatureLayer featureLayer = new FeatureLayerClass() { FeatureClass = featureClass , Name = featureClass.AliasName }; VectorHelper_FeatureOpt VectorAdderHelper = new VectorHelper_FeatureOpt(globecontrol , featureLayer); VectorAdderHelper.ShowDialog(); this.Close(); //System.Runtime.InteropServices.Marshal.ReleaseComObject(featureClass); //System.Runtime.InteropServices.Marshal.ReleaseComObject(featureLayer); } //添加栅格 private void listView_raster_MouseDoubleClick(object sender , MouseEventArgs e) { IRasterWorkspaceEx rasterWSEx = sdeWorkSpace as IRasterWorkspaceEx; IRasterDataset rasterDataset = rasterWSEx.OpenRasterDataset(selectedRasterName); IRasterLayer rasterLayer = new RasterLayerClass(); rasterLayer.CreateFromDataset(rasterDataset); RasterHelper_LayerType rasterAdderHelper = new RasterHelper_LayerType(globecontrol , rasterLayer); rasterAdderHelper.ShowDialog(); this.Close(); //System.Runtime.InteropServices.Marshal.ReleaseComObject(rasterLayer); } //obtain selected vector private void listView_vector_SelectedIndexChanged(object sender , EventArgs e) { ListViewItem item = new ListViewItem(); item = listView_vector.SelectedItems[0]; string featureClassName_temp = item.SubItems[0].ToString(); int lastIndex_left = featureClassName_temp.LastIndexOf("{"); int lastIndex_right = featureClassName_temp.LastIndexOf("}"); selectedVectorName = featureClassName_temp.Substring(lastIndex_left + 1 , lastIndex_right - lastIndex_left - 1); } //obtain selected raster private void listView_raster_SelectedIndexChanged(object sender , EventArgs e) { ListViewItem item = new ListViewItem(); item = listView_raster.SelectedItems[0]; string rasterName_temp = item.SubItems[0].ToString(); int lastIndex_left = rasterName_temp.LastIndexOf("{"); int lastIndex_right = rasterName_temp.LastIndexOf("}"); selectedRasterName = rasterName_temp.Substring(lastIndex_left + 1 , lastIndex_right - lastIndex_left - 1); } #endregion }欢迎留言交流。
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