ArcGIS Engine - 绘制范围线

class RangeManager { #region 类成员变量 public bool oprFlag = false; static private string pFilePath = null; static private string rangeName = null; static private string listName = ""; static private AxMapControl MapControl = null; static private List<string> List_village = new List<string>(); #endregion #region 类构造方法 /// <summary> /// 打开shp文件 /// </summary> public static Response OpenFile(AxMapControl mapControl) { MapControl = mapControl; OpenFileDialog openFileDialog = new OpenFileDialog(); openFileDialog.Title = "打开文件"; openFileDialog.Filter = "shp文件(*.shp)|*.shp";//|CAD文件(*.cad)|*.cad"; openFileDialog.Multiselect = true; openFileDialog.InitialDirectory = Configuration.Environment.WorkPath; if (openFileDialog.ShowDialog() == DialogResult.OK) { string path = ""; IWorkspaceFactory pWorkspaceFactory = new ShapefileWorkspaceFactory(); //打开多个文件 for (int i = 0; i < openFileDialog.FileNames.Length; i++) { path = openFileDialog.FileNames.GetValue(i).ToString(); pFilePath = System.IO.Path.GetDirectoryName(path); string pFileName = System.IO.Path.GetFileName(path); IFeatureWorkspace pFeaWorkspace = pWorkspaceFactory.OpenFromFile(pFilePath, 0) as IFeatureWorkspace; IFeatureClass pFeatureClass = pFeaWorkspace.OpenFeatureClass(pFileName); AddLayerToMap(pFeatureClass); } return new Response(Constant.Success, ""); } return new Response(Constant.Nothing, ""); } /// <summary> /// 绘制范围线 /// </summary> public static Response DrawRange() { ILayer pLayer = GetLayerByName(MapControl, Constant.Range_DLTB); IFeatureLayer pFeatureLayer = pLayer as IFeatureLayer; IFeatureClass pFeatureClass = pFeatureLayer.FeatureClass; if (pFeatureClass != null) { MainForm frmMain = new MainForm(); BarButtonItem btiDrawBoundary = frmMain.btiDrawBoundary; if (btiDrawBoundary.Caption == "绘范围线") { btiDrawBoundary.Caption = "停止绘线"; oprFlag = true; } else { btiDrawBoundary.Caption = "绘范围线"; oprFlag = false; } //更改鼠标指针样式 MapControl.MousePointer = esriControlsMousePointer.esriPointerCrosshair; } else { MessageBox.Show("未发现可编辑图层！", "提示"); return new Response(Constant.Nothing, ""); } return new Response(Constant.Success, ""); } /// <summary> /// 开始绘制 /// </summary> public static Response CreateDrawPolygon() { //axMapControl1控件的当前地图工具为空 MapControl.CurrentTool = null; //绘制多边形事件 IGeometry pGeometry = MapControl.TrackLine(); //通过AddFeature函数的两个参数, sLayer——绘制折线的图层; pGeometry——绘制几何的图层 AddFeature("DLTB", pGeometry); return new Response(Constant.Success, ""); } /// <summary> /// 添加实体对象到地图图层(添加线、面要素) /// </summary> private void AddFeature(string layerName, IGeometry pGeometry) { //ILayer pLayer = GetLayerByName(MapControl,layerName); ILayer pLayer = MapControl.get_Layer(0); //得到要添加地物的图层 IFeatureLayer pFeatureLayer = pLayer as IFeatureLayer; if (pFeatureLayer != null) { //定义一个地物类, 把要编辑的图层转化为定义的地物类 IFeatureClass pFeatureClass = pFeatureLayer.FeatureClass; //先定义一个编辑的工作空间, 然后将其转化为数据集, 最后转化为编辑工作空间 IWorkspaceEdit pWorkspaceEdit = (pFeatureClass as IDataset).Workspace as IWorkspaceEdit; IFeature pFeature; //开始事务操作 pWorkspaceEdit.StartEditing(false); //开始编辑 pWorkspaceEdit.StartEditOperation(); //在内存创建一个用于暂时存放编辑数据的要素(FeatureBuffer) IFeatureBuffer pFeatureBuffer = pFeatureClass.CreateFeatureBuffer(); //定义游标 IFeatureCursor pFtCursor; //查找到最后一条记录, 游标指向该记录后再进行插入操作 pFtCursor = pFeatureClass.Search(null, true); pFeature = pFtCursor.NextFeature(); //开始插入新的实体对象(插入对象要使用Insert游标) pFtCursor = pFeatureClass.Insert(true); try { //向缓存游标的Shape属性赋值 pFeatureBuffer.Shape = pGeometry; } catch (COMException ex) { MessageBox.Show("绘制的几何图形超出了边界！"); return; } object featureOID = pFtCursor.InsertFeature(pFeatureBuffer); //保存实体 pFtCursor.Flush(); //结束编辑 pWorkspaceEdit.StopEditOperation(); //结束事务操作 pWorkspaceEdit.StopEditing(true); //释放游标 Marshal.ReleaseComObject(pFtCursor); MapControl.ActiveView.PartialRefresh(esriViewDrawPhase.esriViewGeography, pLayer, null); //更改编辑状态 oprFlag = false; } else { MessageBox.Show("未发现" + layerName + "图层"); } } /// <summary> /// 选择村落 /// </summary> public static Response LocationRange() { if(MapControl != null) { ILayer pLayer = GetLayerByName(Constant.Range_DLTB); if (pLayer != null) { IFeatureLayer pFeatureLayer = pLayer as IFeatureLayer; IFeatureClass pFeatureClass = pFeatureLayer.FeatureClass; //判断是否找到村落字段 int Judge = 0; IFields pFields = pFeatureClass.Fields; for (int i = 0; i < pFields.FieldCount; i++) { IField ifield = pFields.get_Field(i); if (ifield.Name == Constant.Range_Shp_Field) { Judge = 1; List<string> List = new List<string>(); IFeatureCursor pFeaCursor = pFeatureClass.Search(null, true); IFeature pFeature = pFeaCursor.NextFeature(); while (pFeature != null) { string fieldValue = pFeature.get_Value(i).ToString();//获取指定字段的值 List.Add(fieldValue); pFeature = pFeaCursor.NextFeature(); } List = List.Distinct().ToList(); //列表去除重复 //实例化窗体 SelectRange selectRange = new SelectRange(List); selectRange.ShowDialog(); } } if (Judge == 0) { MessageBox.Show("未找到村落名称字段，请重新加载地图！", "提示"); return new Response(Constant.Nothing, ""); } } else { MessageBox.Show("请先加DLTB！", "提示"); return new Response(Constant.Nothing, ""); } } else { MessageBox.Show("请先加载数据！", "提示"); return new Response(Constant.Nothing, ""); } return new Response(Constant.Success, ""); } /// <summary> /// 根据定位村落绘制范围线 /// </summary> public static Response drawLocationRange(List<string> List) { listName = null; rangeName = null; List_village.Clear(); //实例化进度条 ProcessBar processBar = new ProcessBar(); //通过名字获取图层 ILayer pLayer = GetLayerByName(Constant.Range_DLTB); IFeatureLayer pFeatureLayer = pLayer as IFeatureLayer; //根据勾选信息进行属性筛选 IFeatureSelection pFeatureSelection = pFeatureLayer as IFeatureSelection; IQueryFilter queryFilter = new QueryFilterClass(); for (int i = 0; i < List.Count; i++) { queryFilter.WhereClause = Constant.Range_Shp_Field + Constant.File_Ext_equal + "'" + List[i] + "'"; pFeatureSelection.SelectFeatures(queryFilter, esriSelectionResultEnum.esriSelectionResultAdd, false); listName += Constant.File_Ext_Char1 + List[i]; List_village.Add(List[i]); } rangeName = Constant.Project_File_Range + listName + Constant.File_Ext_Char + Constant.Project_File_Shp; //要素数据集路径 string pPath = pFilePath + Constant.File_Ext_Char2; //创建工作空间 IWorkspaceFactory pWorkspaceFactory = new ShapefileWorkspaceFactory(); IFeatureWorkspace pFeaWorkspace = pWorkspaceFactory.OpenFromFile(pFilePath, 0) as IFeatureWorkspace; //判断文件是否存在 if (System.IO.File.Exists(pPath + rangeName)) { if (MessageBox.Show("文件已存在，是否覆盖？", "提示", MessageBoxButtons.YesNo, MessageBoxIcon.Asterisk) == DialogResult.Yes) { IFeatureClass pFCChecker = pFeaWorkspace.OpenFeatureClass(rangeName); if (pFCChecker != null) { IDataset pds = pFCChecker as IDataset; pds.Delete(); } } else { MapControl.Map.ClearSelection(); return new Response(Constant.Nothing, ""); } } processBar.Show(); processBar.Update(); //绘制范围线 Geoprocessor GP_Tool = new Geoprocessor(); ESRI.ArcGIS.DataManagementTools.Dissolve GP_Dissolve = new Dissolve(); GP_Dissolve.in_features = pFeatureSelection as FeatureClass; GP_Dissolve.out_feature_class = pPath + rangeName; try { GP_Tool.Execute(GP_Dissolve, null); } catch (Exception ex) { MessageBox.Show(ex.Message, "GP Error"); System.Text.StringBuilder sb = new System.Text.StringBuilder(); for (int i = 0; i < GP_Tool.MessageCount; i++) sb.AppendLine(GP_Tool.GetMessage(i)); if (sb.Capacity > 0) MessageBox.Show(sb.ToString(), "GP Messages"); } MapControl.Map.ClearSelection(); IFeatureClass lFeatureClass = pFeaWorkspace.OpenFeatureClass(rangeName); processBar.Close(); //将要素添加到图层 AddLayerToMap(lFeatureClass); return new Response(Constant.Success, ""); } /// <summary> /// 生成边框 /// </summary> public static Response CreateFrame() { CreateEnvelope(pFilePath, rangeName, 1000, 1000); return new Response(Constant.Success, ""); } /// <summary> /// 根据范围线生成边框 /// </summary> public static Response CreateEnvelope(String pFilePath, String rangeName, double x, double y) { if (pFilePath != null) { if (rangeName != null) { //创建工作空间 IWorkspaceFactory pWorkspaceFactory = new ShapefileWorkspaceFactory(); IFeatureWorkspace pFeaWorkspace = pWorkspaceFactory.OpenFromFile(pFilePath, 0) as IFeatureWorkspace; //根据范围线范围进行矩形裁剪 IFeatureClass lFeatureClass = pFeaWorkspace.OpenFeatureClass(rangeName); //判断文件是否存在 if (System.IO.File.Exists(pFilePath + Constant.File_Ext_Char2 + Constant.Project_File_Envelope + listName + Constant.File_Ext_Char + Constant.Project_File_Shp)) { if (MessageBox.Show("文件已存在，是否覆盖？", "提示", MessageBoxButtons.YesNo, MessageBoxIcon.Asterisk) == DialogResult.Yes) { IFeatureClass pFCChecker = pFeaWorkspace.OpenFeatureClass(Constant.Project_File_Envelope + listName + Constant.File_Ext_Char + Constant.Project_File_Shp); if (pFCChecker != null) { IDataset pds = pFCChecker as IDataset; pds.Delete(); } } else { return new Response(Constant.Nothing, ""); } } ProcessBar processBar = new ProcessBar(); processBar.Show(); processBar.Update(); IFeature pFeature = lFeatureClass.GetFeature(0); IPolygon pPolygon = pFeature.ShapeCopy as IPolygon; IEnvelope envelope = pPolygon.Envelope; //扩大矩形,false=按长度,true=按比例 envelope.Expand(x, y, false); //将矩形转换为IPolygon IPolygon pPolygon_E = EnvelopeToPolygon(envelope); IGeometry pGeometry = pPolygon_E; ITopologicalOperator2 pTopoOperator = pGeometry as ITopologicalOperator2; pTopoOperator.IsKnownSimple_2 = false; pTopoOperator.Simplify(); //将矩形要素存入新的FeatureClass IFields pFields = lFeatureClass.Fields; IFeatureClass eFeatureClass = pFeaWorkspace.CreateFeatureClass(Constant.Project_File_Envelope + listName, pFields, null, null, esriFeatureType.esriFTSimple, "SHAPE", null); IFeature pFeature1 = eFeatureClass.CreateFeature(); pFeature1.Shape = pGeometry; pFeature1.Store(); processBar.Close(); //添加图框要素到图层 AddLayerToMap(eFeatureClass); } else { MessageBox.Show("请先绘制范围线！", "提示"); return new Response(Constant.Nothing, ""); } } else { MessageBox.Show("请先加载数据！", "提示"); return new Response(Constant.Nothing, ""); } return new Response(Constant.Success, ""); } /// <summary> /// 数据处理 /// </summary> public static Response DataProcessor() { if (pFilePath != null) { //创建工作空间 IWorkspaceFactory pWorkspaceFactory = new ShapefileWorkspaceFactory(); IFeatureWorkspace pFeaWorkspace = pWorkspaceFactory.OpenFromFile(pFilePath, 0) as IFeatureWorkspace; //通过名字获取图层 ILayer pLayer = GetLayerByName(Constant.Range_DLTB); if (pLayer != null) { //要素数据集路径 string pPath = pFilePath + Constant.File_Ext_Char2; IFeatureLayer pFeatureLayer = pLayer as IFeatureLayer; if (rangeName != null) { IFeatureClass pFeatureClass = pFeatureLayer.FeatureClass; IFeatureClass lFeatureClass = pFeaWorkspace.OpenFeatureClass(rangeName); if (System.IO.File.Exists(pPath + Constant.Project_File_Envelope + listName + Constant.File_Ext_Char + Constant.Project_File_Shp)) { IFeatureClass eFeatureClass = pFeaWorkspace.OpenFeatureClass(Constant.Project_File_Envelope + listName + Constant.File_Ext_Char + Constant.Project_File_Shp); //判断文件是否存在 if (System.IO.File.Exists(pPath + pFeatureClass.AliasName + Constant.Project_File_Range_out + listName + Constant.File_Ext_Char + Constant.Project_File_Shp)) { if (MessageBox.Show("文件已存在，是否覆盖？", "提示", MessageBoxButtons.YesNo, MessageBoxIcon.Asterisk) == DialogResult.Yes) { IFeatureClass pFCChecker = pFeaWorkspace.OpenFeatureClass(pFeatureClass.AliasName + Constant.Project_File_Range_out + listName); if (pFCChecker != null) { IDataset pds = pFCChecker as IDataset; pds.Delete(); } } else { return new Response(Constant.Nothing, ""); } } ProcessBar processBar = new ProcessBar(); processBar.Show(); //移除上层范围线 DeleteLayerByName(lFeatureClass.AliasName); //进行DLTB裁剪操作 ClipTool(pFeaWorkspace, pFeatureClass, lFeatureClass, eFeatureClass, pPath, listName); DeleteLayerByName(Constant.Range_DLTB); AddLayer(pFeaWorkspace, pFeatureClass); //进行XZDW裁剪操作 ILayer pLayer1 = GetLayerByName(Constant.Range_XZDW); if (pLayer1 != null) { IFeatureLayer pFeatureLayer1 = pLayer1 as IFeatureLayer; IFeatureClass pFeatureClass1 = pFeatureLayer1.FeatureClass; ClipTool(pFeaWorkspace, pFeatureClass1, lFeatureClass, eFeatureClass, pPath, listName); DeleteLayerByName(Constant.Range_XZDW); AddLayer(pFeaWorkspace, pFeatureClass1); } //进行XZQJX裁剪操作 ILayer pLayer2 = GetLayerByName(Constant.Range_XZQJX); if (pLayer2 != null) { IFeatureLayer pFeatureLayer2 = pLayer2 as IFeatureLayer; IFeatureClass pFeatureClass2 = pFeatureLayer2.FeatureClass; ClipTool(pFeaWorkspace, pFeatureClass2, lFeatureClass, eFeatureClass, pPath, listName); DeleteLayerByName( Constant.Range_XZQJX); AddLayer(pFeaWorkspace, pFeatureClass2); } processBar.Close(); //添加范围线到图层 AddLayerToMap(lFeatureClass); } else { MessageBox.Show("请先绘制图框！", "提示"); return new Response(Constant.Nothing, ""); } } else { MessageBox.Show("请先绘制范围线！", "提示"); return new Response(Constant.Nothing, ""); } } else { MessageBox.Show("请先加载地图！", "提示"); return new Response(Constant.Nothing, ""); } } else { MessageBox.Show("请先加载数据！", "提示"); return new Response(Constant.Nothing, ""); } return new Response(Constant.Success, ""); } /// <summary> /// 裁剪工具 /// </summary> private static void ClipTool(IFeatureWorkspace pFeaWorkspace, IFeatureClass pFeatureClass, IFeatureClass lFeatureClass, IFeatureClass eFeatureClass, string pPath, string listName) { //判断文件是否存在 if (System.IO.File.Exists(pPath + pFeatureClass.AliasName + Constant.Project_File_Range_out + listName + Constant.File_Ext_Char + Constant.Project_File_Shp)) { IFeatureClass pFCChecker = pFeaWorkspace.OpenFeatureClass(pFeatureClass.AliasName + Constant.Project_File_Range_out + listName); if (pFCChecker != null) { IDataset pds = pFCChecker as IDataset; pds.Delete(); } } //矩形裁剪 Geoprocessor GP_Tool = new Geoprocessor(); ESRI.ArcGIS.AnalysisTools.Clip GP_Clip = new ESRI.ArcGIS.AnalysisTools.Clip(); GP_Clip.clip_features = eFeatureClass; GP_Clip.in_features = pFeatureClass; GP_Clip.out_feature_class = pPath + pFeatureClass.AliasName + Constant.Project_File_Range_out + listName; try { GP_Tool.Execute(GP_Clip, null); } catch (Exception ex) { MessageBox.Show(ex.Message, "GP_Clip_envelope Error"); System.Text.StringBuilder sb = new System.Text.StringBuilder(); for (int i = 0; i < GP_Tool.MessageCount; i++) sb.AppendLine(GP_Tool.GetMessage(i)); if (sb.Capacity > 0) MessageBox.Show(sb.ToString(), "GP Messages"); } IFeatureClass eFeatureClass_out = pFeaWorkspace.OpenFeatureClass(pFeatureClass.AliasName + Constant.Project_File_Range_out + listName); //判断文件是否存在 if (System.IO.File.Exists(pPath + pFeatureClass.AliasName + Constant.File_Ext_Char1 + listName + Constant.File_Ext_Char + Constant.Project_File_Shp)) { IFeatureClass pFCChecker = pFeaWorkspace.OpenFeatureClass(pFeatureClass.AliasName + Constant.File_Ext_Char1 + listName); if (pFCChecker != null) { IDataset pds = pFCChecker as IDataset; pds.Delete(); } } //内裁剪 ESRI.ArcGIS.AnalysisTools.Clip GP_Clip1 = new ESRI.ArcGIS.AnalysisTools.Clip(); GP_Clip1.clip_features = lFeatureClass; GP_Clip1.in_features = eFeatureClass_out; GP_Clip1.out_feature_class = pPath + pFeatureClass.AliasName + Constant.File_Ext_Char1 + listName; try { GP_Tool.Execute(GP_Clip1, null); } catch (Exception ex) { MessageBox.Show(ex.Message, "GP_Clip_Range Error"); System.Text.StringBuilder sb = new System.Text.StringBuilder(); for (int i = 0; i < GP_Tool.MessageCount; i++) sb.AppendLine(GP_Tool.GetMessage(i)); if (sb.Capacity > 0) MessageBox.Show(sb.ToString(), "GP Messages"); } //外裁剪 ISpatialFilter pSpatialFilter = new SpatialFilterClass(); IGeometry pGeometry = lFeatureClass.GetFeature(0).ShapeCopy as IGeometry; pSpatialFilter.Geometry = pGeometry; pSpatialFilter.SpatialRel = esriSpatialRelEnum.esriSpatialRelIntersects; //求出与裁切框相交要素 IFeatureCursor pFeatureCursor = eFeatureClass_out.Search(pSpatialFilter, false); IFeature pFeature = pFeatureCursor.NextFeature(); while (pFeature != null) { IGeometry tGeo = pFeature.ShapeCopy; ITopologicalOperator tTope = tGeo as ITopologicalOperator; tTope.Simplify(); //用裁切出来的要素,再与其源要素进行求差处理,即得到外围要素 IGeometry tGeoDe = tTope.Difference(pGeometry); //把外围要素赋予源要素 pFeature.Shape = tGeoDe; pFeature.Store(); pFeature = pFeatureCursor.NextFeature(); } } /// <summary> /// 面积统计获取地类 /// </summary> public static Response AreaSum() { if(MapControl != null) { ILayer pLayer = GetLayerByName(Constant.Range_DLTB); if (pLayer != null) { IFeatureLayer pFeatureLayer = pLayer as IFeatureLayer; IFeatureClass pFeatureClass = pFeatureLayer.FeatureClass; //判断是否找到地类名称字段 int Judge = 0; IFields pFields = pFeatureClass.Fields; for (int i = 0; i < pFields.FieldCount; i++) { IField ifield = pFields.get_Field(i); if (ifield.Name == Constant.Range_Field_DLMC) { Judge = 1; List<string> List = new List<string>(); IFeatureCursor pFeaCursor = pFeatureClass.Search(null, true); IFeature pFeature = pFeaCursor.NextFeature(); while (pFeature != null) { string fieldValue = pFeature.get_Value(i).ToString();//获取指定字段的值 List.Add(fieldValue); pFeature = pFeaCursor.NextFeature(); } List = List.Distinct().ToList(); //列表去除重复 //实例化窗体 AreaSum areaSum = new AreaSum(List); areaSum.ShowDialog(); } } if (Judge == 0) { MessageBox.Show("未找到地类名称字段，请重新加载地图！", "提示"); return new Response(Constant.Nothing, ""); } } else { MessageBox.Show("请先加载DLTB！", "提示"); return new Response(Constant.Nothing, ""); } } else { MessageBox.Show("请先加载数据！", "提示"); return new Response(Constant.Nothing, ""); } return new Response(Constant.Success, ""); } /// <summary> /// 根据选择地类进行面积统计 /// </summary> public static Response AreaShow(List<string> List) { //实例化窗体 AreaShow areaShow = new AreaShow(); GridControl gridControl = areaShow.dataGrid; GridView gridView = areaShow.gridView; //新建表格 DataTable dataTable = new DataTable(); gridControl.DataSource = dataTable; //通过名字获取图层 ILayer pLayer = GetLayerByName(Constant.Range_DLTB); IFeatureLayer pFeatureLayer = pLayer as IFeatureLayer; IFeatureClass pFeatureClass = pFeatureLayer.FeatureClass; IFeatureSelection pFeatureSelection = pFeatureLayer as IFeatureSelection; //根据勾选信息进行属性筛选 if (List.Count != 0) { dataTable.Columns.Add("村名", typeof(string)); for (int l = 0; l < List_village.Count+1; l++) { dataTable.Rows.Add(); } for (int i = 0; i < List.Count; i++) { dataTable.Columns.Add(List[i], typeof(string)); IDataStatistics dataStatistics = new DataStatisticsClass(); IQueryFilter queryFilter = new QueryFilterClass(); queryFilter.WhereClause = Constant.Range_Field_DLMC + Constant.File_Ext_equal + "'" + List[i] + "'"; ICursor cursor = pFeatureClass.Search(queryFilter, false) as ICursor; dataStatistics.Field = Constant.Range_Field_TBMJ;//面积字段 dataStatistics.Cursor = cursor; IStatisticsResults results = dataStatistics.Statistics; double sum = results.Sum; double Sum = Math.Round(sum, 2);//保留两位小数 dataTable.Rows[List_village.Count][0] = "总计："; dataTable.Rows[List_village.Count][i+1] = Sum; } //数据查询 if (List_village.Count != 0) { for (int l = 0; l < List_village.Count; l++) { dataTable.Rows[l][0] = List_village[l]; for (int i = 0; i < List.Count; i++) { IDataStatistics dataStatistics = new DataStatisticsClass(); IQueryFilter queryFilter = new QueryFilterClass(); //"ZLDWMC = '村名'AND DLMC = '类型'" string SQL = Constant.Range_Shp_Field + Constant.File_Ext_equal + "'" + List_village[l] + "'" + "AND" + ' ' + Constant.Range_Field_DLMC + Constant.File_Ext_equal + "'" + List[i] + "'"; queryFilter.WhereClause = SQL; ICursor cursor = pFeatureClass.Search(queryFilter, false) as ICursor; dataStatistics.Field = Constant.Range_Field_TBMJ;//面积字段 dataStatistics.Cursor = cursor; IStatisticsResults results = dataStatistics.Statistics; double sum = results.Sum; double Sum = Math.Round(sum, 2);//保留两位小数 dataTable.Rows[l][i+1] = Sum; } } } gridView.PopulateColumns(); areaShow.ShowDialog(); } else { MessageBox.Show("请勾选地类！", "提示"); return new Response(Constant.Nothing, ""); } return new Response(Constant.Success, ""); } /// <summary> /// 添加图层 /// </summary> private static void AddLayerToMap(IFeatureClass pFeatureClass) { //去除后缀 String LayerName = pFeatureClass.AliasName; LayerName = LayerName.Split('_')[0]; //将要素添加到显示 IFeatureLayer pFeatureLyr = new FeatureLayer(); pFeatureLyr.FeatureClass = pFeatureClass; pFeatureLyr.Name = LayerName; if (LayerName == Constant.Project_File_Range || LayerName == Constant.Project_File_Envelope) { SimpleFillSymbol(pFeatureLyr, esriSimpleFillStyle.esriSFSHollow, null, new RgbColorClass() { Red = 255, Green = 0, Blue = 0 }, 2); } MapControl.Map.AddLayer(pFeatureLyr); MapControl.ActiveView.Refresh(); } /// <summary> /// 添加内、外图层显示 /// </summary> private static void AddLayer(IFeatureWorkspace pFeaWorkspace, IFeatureClass pFeatureClass) { //添加内、外层要素到图层 IFeatureClass open_pFeatureClass = pFeaWorkspace.OpenFeatureClass(pFeatureClass.AliasName + Constant.File_Ext_Char1 + listName); IFeatureClass open_pFeatureClass_out = pFeaWorkspace.OpenFeatureClass(pFeatureClass.AliasName + Constant.Project_File_Range_out + listName); AddLayerToMap(open_pFeatureClass); AddLayerToMap(open_pFeatureClass_out); } /// <summary> /// 根据图层名获取图层 /// </summary> private static ILayer GetLayerByName(string IN_LayerName) { ILayer pLayer = null; for (int i = 0; i < MapControl.LayerCount; i++) { if (MapControl.get_Layer(i).Name == IN_LayerName) { pLayer = MapControl.get_Layer(i); break; } } return pLayer; } /// <summary> /// 根据图层名删除图层 /// </summary> private static void DeleteLayerByName(string Delete_LayerName) { for (int i = 0; i < MapControl.LayerCount; i++) { if (MapControl.get_Layer(i).Name == Delete_LayerName) { MapControl.DeleteLayer(i); } } } /// <summary> /// 符号化 /// </summary> private static void SimpleFillSymbol(IFeatureLayer pFeatureLayer, esriSimpleFillStyle FillStyle, IColor pFillColor, IColor pOutLineColor, int nOutLineWidth = 1) { //填充风格、颜色 ISimpleFillSymbol pSimpleFillSymbol = new SimpleFillSymbolClass { Style = FillStyle }; if (null != pFillColor) { pSimpleFillSymbol.Color = pFillColor; } ISimpleLineSymbol pSimpleLineSymbol = new SimpleLineSymbolClass { Style = esriSimpleLineStyle.esriSLSSolid, Color = pOutLineColor,//边线颜色 Width = nOutLineWidth > 0 ? nOutLineWidth : 1 //线宽 }; pSimpleFillSymbol.Outline = pSimpleLineSymbol; ISimpleRenderer simpleRender = new SimpleRendererClass { Symbol = pSimpleFillSymbol as ISymbol, }; IGeoFeatureLayer geoLayer = pFeatureLayer as IGeoFeatureLayer; if (geoLayer != null) { geoLayer.Renderer = simpleRender as IFeatureRenderer; } } /// <summary> /// EnvelopeToPolygon /// </summary> private static IPolygon EnvelopeToPolygon(IEnvelope envelope) { IPointCollection pointColl = new PolygonClass(); IPoint point = new PointClass(); point.PutCoords(envelope.XMin, envelope.YMin); pointColl.AddPoint(point); point = new PointClass(); point.PutCoords(envelope.XMax, envelope.YMin); pointColl.AddPoint(point); point = new PointClass(); point.PutCoords(envelope.XMax, envelope.YMax); pointColl.AddPoint(point); point = new PointClass(); point.PutCoords(envelope.XMin, envelope.YMax); pointColl.AddPoint(point); point = new PointClass(); point.PutCoords(envelope.XMin, envelope.YMin); pointColl.AddPoint(point); return pointColl as IPolygon; } #endregion } }