ae中矢量数据转换成栅格数据

 IMap pMap = axMapControl1.Map;
            IFeatureLayer pFeatLyr = (IFeatureLayer)axMapControl1.get_Layer(0);
            IFeatureClass pFeatClass = pFeatLyr.FeatureClass;
            IFeatureClassDescriptor pFClsDp = new FeatureClassDescriptorClass();
            pFClsDp.Create(pFeatClass, null, "CODE");

            IWorkspaceFactory pWsf = new RasterWorkspaceFactoryClass();
            IWorkspace pWs = pWsf.OpenFromFile(@"E:\data\result", 0);

            IConversionOp pConOp = new RasterConversionOpClass();
            IRasterAnalysisEnvironment pRasterEn = pConOp as IRasterAnalysisEnvironment;
            object oo = 200;
            pRasterEn.SetCellSize(esriRasterEnvSettingEnum.esriRasterEnvValue, ref oo);

            IRasterDataset pRDataset = pConOp.ToRasterDataset(pFClsDp as IGeoDataset, "GRID", pWs, "raster");
            IRasterLayer pRlyr = new RasterLayerClass();
            pRlyr.CreateFromDataset(pRDataset);
            pMap.AddLayer(pRlyr as ILayer);