C#、AE開發入門之打開CAD文件並顯示

加載CAD文件稍顯復雜一些，總體還是和前面基本類似

　　　　　private void button3_Click(object sender, EventArgs e)
        {
            axMapControl1.ClearLayers();
            IWorkspaceFactory pWF = new ESRI.ArcGIS.DataSourcesFile.CadWorkspaceFactory();//利用工廠對象去生成一個CAD文件的工作空間
            IWorkspace pW = pWF.OpenFromFile(cadPath,0);    //打開對應的文件夾路徑
            IFeatureWorkspace pFW = (IFeatureWorkspace)pW;

            IFeatureClass pFW_text = pFW.OpenFeatureClass("裙子.dwg:Polygon");//利用要素類去接收對應的cad文件中的面屬性
            IFeatureLayer pFeatureLayer2 = new FeatureLayerClass();//生成一個要素圖層對象
            pFeatureLayer2.FeatureClass = pFW_text;//將接收要素類的cad文件賦值給要素圖層的要素類屬性
            axMapControl1.AddLayer(pFeatureLayer2);//添加對應的polygon圖層

            IFeatureClass pFC = pFW.OpenFeatureClass("裙子.dwg:Polyline");//利用要素類去接收對應的cad文件中的線屬性
            IFeatureLayer pFeatLyr = new FeatureLayerClass();//生成一個要素圖層對象（接收線）
            pFeatLyr.FeatureClass = pFC;//將線屬性賦值給對應的要素圖層
            ISimpleLineSymbol pLineSymbol = new SimpleLineSymbolClass();//創建一個線特征對象
            IRgbColor pColor = new RgbColorClass();//生成一個顏色控制的接口
            pColor.Red = 0;
            pColor.Blue = 255;
            pColor.Green = 0;

            pLineSymbol.Color = (IColor)pColor;//將線對象的顏色設置為對應的顏色
            pLineSymbol.Style = esriSimpleLineStyle.esriSLSSolid;//設置線的樣式

            ISimpleRenderer pRender = new SimpleRendererClass();
            pRender.Symbol = pLineSymbol as ISymbol;

            IGeoFeatureLayer pGeoLyr = pFeatLyr as IGeoFeatureLayer;
            pGeoLyr.Renderer = pRender as IFeatureRenderer;

            axMapControl1.AddLayer(pFeatLyr);
            axMapControl1.ActiveView.Refresh();
        }