用ArcEngine的工具条添加图层要素

用ArcEngine的工具条添加图层要素

2008-03-25 01:43:41| 分类： 专业之AO|字号 订阅

private void Form1_Load(object sender, System.EventArgs e)
{
//清空图层
this.axMapControl1.Map.ClearLayers();

//加载服务器SDE地图信息
ESRI.ArcGIS.esriSystem.IPropertySet Proset = new ESRI.ArcGIS.esriSystem.PropertySetClass();//属性集
ESRI.ArcGIS.Geodatabase.IWorkspaceFactory Fact;//工作空间仓库
ESRI.ArcGIS.Geodatabase.IWorkspace Workspace;//工作空间

Proset.SetProperty("Server","服务器名");//服务器名
Proset.SetProperty("Instance","端口");//实例化端口
Proset.SetProperty("user","用户名");//SDE用户名
Proset.SetProperty("password","密码");//密码
Proset.SetProperty("version","sde.DEFAULT");//连接版本

Fact = new ESRI.ArcGIS.DataSourcesGDB.SdeWorkspaceFactoryClass();//实例化为SDE工作空间仓库
Workspace = Fact.Open(Proset,Int32.Parse(this.Handle.ToString()));//填入属性集

ESRI.ArcGIS.Geodatabase.IFeatureWorkspace FeatureWorkspace;
FeatureWorkspace = Workspace as ESRI.ArcGIS.Geodatabase.IFeatureWorkspace;//传递给Feature工作空间

ESRI.ArcGIS.Geodatabase.IFeatureClass FeatureClass;
FeatureClass = FeatureWorkspace.OpenFeatureClass("SDE.BBBB");//填充所需Feature集合

ESRI.ArcGIS.Carto.FeatureLayer FLayer = new ESRI.ArcGIS.Carto.FeatureLayerClass();
FLayer.FeatureClass = FeatureClass;//将Feature加载到图层

axMapControl1.Map.AddLayer(FLayer);//加载图层

axMapControl1.Update();//更新空白区域
axMapControl1.Refresh();//刷新地图视窗
}

private void Form1_Closed(object sender, System.EventArgs e)
{
ESRI.ArcGIS.esriSystem.IAoInitialize aoi = new ESRI.ArcGIS.esriSystem.AoInitializeClass();
aoi.Shutdown();
}

private void button1_Click(object sender, System.EventArgs e)
{
IGraphicsContainerSelect GraphicsContainerSelect = (IGraphicsContainerSelect)axMapControl1.Map;

if(GraphicsContainerSelect.ElementSelectionCount ==0)//判断是否选中图斑

{
MessageBox.Show("请选中欲导入图斑！");
return;
}

IWorkspaceEdit WorkspaceEdit;
IFeatureLayer FeatureLayer;
IFeatureClass FeatureClass;
IFeature Feature;
IDataset Dataset;

FeatureLayer = (IFeatureLayer)this.axMapControl1.get_Layer(0);//选中导入图层
FeatureClass = FeatureLayer.FeatureClass;//该图层的feature集

Dataset = (IDataset)FeatureClass;//该图层的数据集
WorkspaceEdit = (IWorkspaceEdit)Dataset.Workspace;//关联到编辑空间

WorkspaceEdit.StartEditing(true);//使之可编辑

WorkspaceEdit.StartEditOperation();//开始编辑
Feature = FeatureClass.CreateFeature();//创建空feature
Feature.Shape = GraphicsContainerSelect.SelectedElement(0).Geometry;//仅导入最新选中图斑,即多选时只有一个可以导入
Feature.Store();
WorkspaceEdit.StopEditOperation();

WorkspaceEdit.StopEditing(true);//结束编辑并保存

IGraphicsContainer GraphicsContainer = (IGraphicsContainer)GraphicsContainerSelect;
GraphicsContainer.DeleteAllElements();//删除graphic图层

axMapControl1.ActiveView.Refresh();//刷新当前视图

MessageBox.Show("ok");
}