1  /// <summary>
 2 剔除栅格块
 3 /// /// </summary>
 4 public void ImageSieveFilte ()
 5 {
 6    FrmImageSieveFilter frmImageSieveFilter = new FrmImageSieveFilter();
 7    if (frmImageSieveFilter.ShowDialog() != System.Windows.Forms.DialogResult.OK) return;
 8 IRasterDataset dataset = DatasetFactory.OpenRasterDataset(frm.Exchange_info.InputFile, OpenMode.ReadOnly);
 9     if (dataset == null) return;
10     ImageSieveFilter_Exchange_info info = new ImageSieveFilter_Exchange_info();//得到生成实体文件用这种方法
11     info = frm.Exchange_info;
12     //ImageSieveFilterDataset_Exchange_info info = new ImageSieveFilterDataset_Exchange_info();//生成缓存数据集或者该别原数据集
13     //info.BModifyOriginal = false;
14     //info.InputRasterDataset = dataset;
15     //info.MinArea = frm.Exchange_info.MinArea;
16
17     ISystemAlgo algo = AlgoFactory.Instance().CreateAlgo("PIE.CommonAlgo.dll", "PIE.CommonAlgo.ImageSieveFilterAlgo");
18     if (algo == null) return;
19     algo.Params = info;
20     bool result = AlgoFactory.Instance().ExecuteAlgo(algo);
21     //info = algo.Params as ImageSieveFilterDataset_Exchange_info;//得到执行后的结果输出栅格数据集,算法执行完后把结果存在   OutputRasterDataset,需要重新获取一下
22     if (result)
23     {
24         // ILayer layer = LayerFactory.CreateDefaultRasterLayer(info.OutputRasterDataset) as ILayer;
25         ILayer layer = LayerFactory.CreateDefaultLayer(info.OutputFile);
26         if (layer == null) return;
27         mapControlMain.ActiveView.FocusMap.AddLayer(layer);
28         mapControlMain.ActiveView.PartialRefresh(ViewDrawPhaseType.ViewAll);
29     }
30 }