AE实现不同图层的合并C#代码-优快云博客

本文介绍了一种使用ArcEngine实现具有相同数据结构的shapefile图层合并的方法，并在MapControl中进行了展示。通过具体代码示例展示了如何进行图层合并及输出。

今天在单位做图层合并的工作,刚开始找不到相应的接口,现在解决了,放出来与大家共享
本程序实现了对具有同类型数据结构的shapefile的图层合并,并在MapControl中显示.
         ILayer pLayer;
         IFeatureLayer pFeatureLayer;
         IFeatureClass pFeatureClass;
         IWorkspaceName pNewWSName;
         IBasicGeoprocessor pBasicGeop;
         IFeatureClassName pFeatureClassName;
         IDatasetName pDatasetName;
         IFeatureClass pOutputFeatClass;
         IFeatureLayer pOutputFeatLayer;
         IArray pArray;
         ITable pTable;
         //合并图层的集合
         pArray = new ArrayClass();
         for (int i = 0; i < this.axMapcontrol1.LayerCount;i++ )
         {
            pLayer = this.MapC_main.get_Layer(i);
            pArray.Add(pLayer);
         }
         //定义输出图层的fields表
         pLayer = this.MapC_main.get_Layer(0);
         pTable = (ITable)pLayer;
         pFeatureLayer=(IFeatureLayer)pLayer;
         pFeatureClass = pFeatureLayer.FeatureClass;
         //判断图层是否大于2个
         if(this..axMapcontrol1.LayerCount< 2){
            MessageBox.Show("Table QI failed");
            return;
         }
         //输出文件类型
         pFeatureClassName = new FeatureClassNameClass();
         pFeatureClassName.FeatureType = esriFeatureType.esriFTSimple;
         pFeatureClassName.ShapeFieldName = "Shape";
         pFeatureClassName.ShapeType = pFeatureClass.ShapeType;
         //输出shapefile的名称和位置
         pNewWSName = new WorkspaceNameClass();
         pNewWSName.WorkspaceFactoryProgID="esriDataSourcesFile.ShapefileWorkspaceFactory";
         pNewWSName.PathName = "E:\\Cshape";
         pDatasetName = (IDatasetName)pFeatureClassName;
         pDatasetName.Name = "Union_result_1";
         pDatasetName.WorkspaceName = pNewWSName;

         //合并图层
         pBasicGeop = new BasicGeoprocessorClass();
         pOutputFeatClass=pBasicGeop.Merge(pArray,pTable,pFeatureClassName);
         //Add the output layer to the map
         pOutputFeatLayer = new FeatureLayerClass();
         pOutputFeatLayer.FeatureClass = pOutputFeatClass;
         pOutputFeatLayer.Name = pOutputFeatClass.AliasName;
         this..axMapcontrol1.AddLayer(pOutputFeatLayer as ILayer, 0);

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分类: ArcEngine, ArcGIS Object

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