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。