基于arcpro3.0.2的删除图层中与掩码图层不相交的要素功能

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基于arcpro3.0.2的删除图层中与掩码图层不相交的要素功能

其代码如下所示：

//开始删除功能
private void btnRun_Click(object sender, EventArgs e)
{ProcessWindow pw = null;try{//获取图层var delFeatsLayer = this.cb_DeleteFeatures.SelectedItem as FeatureLayer;if (delFeatsLayer == null){MessageBox.Show("请先选择一个要删除要素的图层", "提示");return;}var maskLayer = this.cb_MaskLayer.SelectedItem as FeatureLayer;if (maskLayer == null){MessageBox.Show("请先选择一个掩码图层", "提示");return;}pw = appTool.getNewProcessWindow("删除进度...");pw.Show();QueuedTask.Run(() =>{pw.setMinValue(0);pw.setMaxValue(10);pw.setValue(0);//FeatureClass delFc = delFeatsLayer.GetFeatureClass();FeatureClass maskFc = maskLayer.GetFeatureClass();long fIndex = 0;long fCount = delFc.GetCount();pw.setMaxValue(fCount);using (RowCursor rowCursor =delFc.Search(null)){   using(RowCursor maskCursor=maskFc.Search(null)){//合并几何对象pw.addMessageTime("正在准备合并掩码几何对象");Geometry maskGeo = null;while(maskCursor.MoveNext()){using(Feature maskFeat =maskCursor.Current as Feature){if(maskFeat != null && maskFeat.GetShape()!=null){if(maskGeo==null){maskGeo = maskFeat.GetShape();}else{maskGeo = GeometryEngine.Instance.Union(maskGeo, maskFeat.GetShape());}}}}pw.addMessageTime("合并掩码几何对象完毕");pw.addMessageTime("准备删除与掩码图层不相交的要素...");//判断并删除要素List<long> idList = new List<long>();while (rowCursor.MoveNext()){using (Feature delFeat = rowCursor.Current as Feature){fIndex += 1;if (delFeat != null){if (GeometryEngine.Instance.Intersects(delFeat.GetShape(),maskGeo)==false){    //不相交的要素，则删除之                                            idList.Add(delFeat.GetObjectID());}}if (fIndex % 5000 == 0){pw.addMessageTime("正在处理要素:    " + fIndex + "/" + fCount);}}}pw.setMaxValue(idList.Count);Table table = delFeatsLayer.GetTable();                            //for (int i=0;i<idList.Count; i++){                                long oid = idList[i];EditOperation delFeats = new EditOperation();delFeats.Delete(table, oid);if (delFeats.IsEmpty == false){delFeats.Execute();                                    }if (i % 5000 == 0){pw.addMessageTime("正在删除要素:    " + i + "/" + idList.Count);}}pw.addMessageTime("处理要素个数 " + fCount + "/" + fCount);}                        }                    pw.addMessageTime("处理完毕");//});}catch (Exception ex){MessageBox.Show(ex.ToString());}finally{}}

本blog地址：https://blog.csdn.net/hsg77

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