using System;

 using System.Collections.Generic;

 using System.ComponentModel;

 using System.Data;

 using System.Drawing;

 using System.Linq;

 using System.Text;

 using System.Windows.Forms;

 using NewDistrict;

 using System.IO;

 using System.Threading.Tasks;

 using ESRI.ArcGIS.Carto;

 using ESRI.ArcGIS.Controls;

 using ESRI.ArcGIS.DataSourcesFile;

 using ESRI.ArcGIS.Geodatabase;

 using ESRI.ArcGIS.Geometry;

 namespace SignalDeal

 {

     public partial class Formtxt2shp : Form

     {

         public Formtxt2shp()

         {

             ESRI.ArcGIS.RuntimeManager.Bind(ESRI.ArcGIS.ProductCode.EngineOrDesktop);

             InitializeComponent();

         }

         //选择Txt文件

         private void btn_TxtPath_Click(object sender, EventArgs e)

         {

             OpenFileDialog xjTxtOpenFileDialog = new OpenFileDialog();

             xjTxtOpenFileDialog.Multiselect = false;

             xjTxtOpenFileDialog.Title = "打开txt坐标文件";

             xjTxtOpenFileDialog.Filter = "txt坐标文件（*.txt）|*.txt";

             if (xjTxtOpenFileDialog.ShowDialog() == DialogResult.OK)

             {

                 txt_TxtPath.Text = xjTxtOpenFileDialog.FileName;

             }

         }

         //Shp矢量点保存路径

         private void btn_ShpPath_Click(object sender, EventArgs e)

         {

             SaveFileDialog xjShpSaveFileDialog = new SaveFileDialog();

             xjShpSaveFileDialog.Filter = "Shape文件（*.shp）|*.shp";

             if (File.Exists(txt_TxtPath.Text))

             {

                 xjShpSaveFileDialog.FileName = System.IO.Path.GetFileNameWithoutExtension(txt_TxtPath.Text);

             }

             if (xjShpSaveFileDialog.ShowDialog() == DialogResult.OK)

             {

                 txt_ShpPath.Text = xjShpSaveFileDialog.FileName;

             }

         }

         //显示保存

         //检查数据和路径

         private bool Check()

         {

             if (txt_TxtPath.Text == "" || !File.Exists(txt_TxtPath.Text))

             {

                 MessageBox.Show("数据无效，重选", "提示", MessageBoxButtons.OK);

                 return false;

             }

             if (txt_ShpPath.Text == "" || System.IO.Path.GetExtension(txt_ShpPath.Text).ToLower() != ".shp")

             {

                 MessageBox.Show("Shp矢量点保存路径无效，重选", "提示", MessageBoxButtons.OK);

                 return false;

             }

             return true;

         }

         //结构体

         struct Point

         {

             public string Name;

             public double X;

             public double Y;

         }

         List<string> xjColumn = new List<string>();

         //获取点数据

         private List<Point> GetPoint(string surveyDataFullName)

         {

                 List<Point> xjList = new List<Point>();

                 char[] xjchar = new char[] { ',', ' ', '\t' };  //常用的分隔符为逗号、空格、制位符

                 //读取

                 FileStream xjFileStream = new FileStream(surveyDataFullName, FileMode.Open);

                 StreamReader xjStreamReader = new StreamReader(xjFileStream, Encoding.Default);

                 string xjstringLine = xjStreamReader.ReadLine();

                 if (xjstringLine != null)

                 {

                     string[] xjstrArray = xjstringLine.Split(xjchar);

                     if (xjstrArray.Length > )

                     {

                         for (int i = ; i < xjstrArray.Length; i++)

                         {

                             xjColumn.Add(xjstrArray[i]);

                         }

                     }

                     while ((xjstringLine = xjStreamReader.ReadLine()) != null)

                     {

                         //点信息的读取

                         xjstrArray = xjstringLine.Split(xjchar);

                         Point xjPoint = new Point();

                         xjPoint.Name = xjstrArray[].Trim();

                         xjPoint.X = Convert.ToDouble(xjstrArray[]);

                         xjPoint.Y = Convert.ToDouble(xjstrArray[]);

                         xjList.Add(xjPoint);

                     }

                 }

                 else

                 {

                     return null;

                 }

                 xjStreamReader.Close();

                 return xjList;

             //catch (Exception ex)

             //{

             //    MessageBox.Show(ex.Message);

             //    return null;

             //}

         }

         //创建Shp矢量图层

         private IFeatureLayer CreateShpFromPoints(List<Point> xjPointList, string xjFilePath)

         {

             int index = xjFilePath.LastIndexOf('\\');

             string xjFolder = xjFilePath.Substring(, index);

             string xjShapeName = xjFilePath.Substring(index + );

             IWorkspaceFactory xjWsF = new ShapefileWorkspaceFactoryClass();

             IFeatureWorkspace xjFWs = (IFeatureWorkspace)xjWsF.OpenFromFile(xjFolder, );

             IFields xjFields = new FieldsClass();

             IFieldsEdit xjFieldsEdit;

             xjFieldsEdit = (IFieldsEdit)xjFields;

             IField xjField = new FieldClass();

             IFieldEdit xjFieldEdit = (IFieldEdit)xjField;

             xjFieldEdit.Name_2 = "Shape";

             xjFieldEdit.Type_2 = esriFieldType.esriFieldTypeGeometry;

             IGeometryDef xjGeometryDef = new GeometryDefClass();

             IGeometryDefEdit xjGDefEdit = (IGeometryDefEdit)xjGeometryDef;

             xjGDefEdit.GeometryType_2 = esriGeometryType.esriGeometryPoint;

             //定义坐标系

             ISpatialReferenceFactory pSRF = new SpatialReferenceEnvironmentClass();

             ISpatialReference pSpatialReference = pSRF.CreateProjectedCoordinateSystem((int)esriSRProjCS4Type.esriSRProjCS_Beijing1954_3_Degree_GK_CM_114E);

             xjGDefEdit.SpatialReference_2 = pSpatialReference;

             xjFieldEdit.GeometryDef_2 = xjGeometryDef;

             xjFieldsEdit.AddField(xjField);

             IFeatureClass xjFeatureClass;

             xjFeatureClass = xjFWs.CreateFeatureClass(xjShapeName, xjFields, null, null, esriFeatureType.esriFTSimple, "Shape", "");

             IPoint xjPoint = new PointClass();

             for (int j = ; j < xjPointList.Count; j++)

             {

                 xjPoint.X = xjPointList[j].X;

                 xjPoint.Y = xjPointList[j].Y;

                 IFeatureBuffer xjFeature = xjFeatureClass.CreateFeatureBuffer();

                 IFeatureCursor featureCursor = xjFeatureClass.Insert(true);

                 xjFeature.Shape = xjPoint;

                 xjFeature.set_Value(xjFeature.Fields.FindField("id"), xjPointList[j].Name);

                 featureCursor.InsertFeature(xjFeature);

             }

             IFeatureLayer xjFeatureLayer = new FeatureLayerClass();

             xjFeatureLayer.Name = xjShapeName;

             xjFeatureLayer.FeatureClass = xjFeatureClass;

             return xjFeatureLayer;

         }

         //单击显示保存

         private void btn_ShowSave_Click(object sender, EventArgs e)

         {

             if (Check())

             {

                 List<Point> xjPointList = GetPoint(txt_TxtPath.Text);

                 if (xjPointList == null)

                 {

                     MessageBox.Show("选择文件是空的！");

                 }

                 else

                 {

                     IFeatureLayer pFeatureLayer = CreateShpFromPoints(xjPointList, txt_ShpPath.Text);

                     //MainForm.m_mapControl.Map.AddLayer(pFeatureLayer);

                 }

             }

             MessageBox.Show("完成！");

         }

     }

 }

 Formtxt2shp.cs