C#+ArcEngine：txt點資料轉Shp向量資料
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using ESRI.ArcGIS.Carto;
using ESRI.ArcGIS.Controls;
using ESRI.ArcGIS.DataSourcesFile;
using ESRI.ArcGIS.Geodatabase;
using ESRI.ArcGIS.Geometry;
namespace AE簡單開發
{
publicpartialclassForm_TxtToShpPoint :Form
{
publicForm_TxtToShpPoint()
{
ESRI.ArcGIS.RuntimeManager.Bind(ESRI.ArcGIS.ProductCode.EngineOrDesktop);
InitializeComponent();
}
//
privatevoidbtn_TxtPath_Click(object sender,EventArgs e)
{
OpenFileDialog xjTxtOpenFileDialog =newOpenFileDialog();
xjTxtOpenFileDialog.Multiselect = false;
xjTxtOpenFileDialog.Title = "開啟txt座標檔案";
xjTxtOpenFileDialog.Filter = "txt座標檔案（*.txt
if(xjTxtOpenFileDialog.ShowDialog() ==DialogResult.OK)
{
txt_TxtPath.Text = xjTxtOpenFileDialog.FileName;
}
}
//Shp向量點儲存路徑
privatevoidbtn_ShpPath_Click(object sender,EventArgs e)
{
SaveFileDialogxjShpSaveFileDialog =newSaveFileDialog();
xjShpSaveFileDialog.Filter = "Shape檔案（*.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;
}
}
//顯示儲存
//檢查資料和路徑
privateboolCheck()
{
if(txt_TxtPath.Text =="" || !File.Exists(txt_TxtPath.Text))
{
MessageBox.Show("資料無效哇，重選","提示",MessageBoxButtons.OK);
return false;
}
if(txt_ShpPath.Text =="" ||System.IO.Path.GetExtension(txt_ShpPath.Text).ToLower()!=".shp")
{
MessageBox.Show("Shp向量點儲存路徑無效哇，重選","提示",MessageBoxButtons.OK);
return false;
}
returntrue;
}
//結構體
structPoint
{
publicstringName;
publicdoubleX;
publicdoubleY;
}
List<string>xjColumn =newList<string>();
//獲取點資料
privateList<Point>GetPoint(string surveyDataFullName)
{
try
{
List<Point>xjList =newList<Point>();
char[] xjchar = newchar[]{ ',', ' ','\t' }; //常用的分隔符為逗號、空格、制位符
//讀取
FileStream xjFileStream =newFileStream(surveyDataFullName,FileMode.Open);
StreamReader xjStreamReader =newStreamReader(xjFileStream,Encoding.Default);
string xjstringLine =xjStreamReader.ReadLine();
if(xjstringLine !=null)
{
string[] xjstrArray =xjstringLine.Split(xjchar);
if (xjstrArray.Length > 0)
{
for(inti = 0; i < xjstrArray.Length; i++)
{
xjColumn.Add(xjstrArray[i]);
}
}
while ((xjstringLine =xjStreamReader.ReadLine()) !=null)
{
//點資訊的讀取
xjstrArray =xjstringLine.Split(xjchar);
Point xjPoint =newPoint();
xjPoint.Name =xjstrArray[0].Trim();
xjPoint.X = Convert.ToDouble(xjstrArray[1]);
xjPoint.Y = Convert.ToDouble(xjstrArray[2]);
xjList.Add(xjPoint);
}
}
else
{
return null;
}
xjStreamReader.Close();
return xjList;
}
catch(Exception ex)
{
MessageBox.Show(ex.Message);
return null;
}
}
//建立Shp向量圖層
private IFeatureLayer CreateShpFromPoints(List<Point> xjPointList,stringxjFilePath)
{
intindex = xjFilePath.LastIndexOf('\\');
stringxjFolder = xjFilePath.Substring(0, index);
stringxjShapeName = xjFilePath.Substring(index + 1);
IWorkspaceFactory xjWsF =newShapefileWorkspaceFactoryClass();
IFeatureWorkspace xjFWs = (IFeatureWorkspace)xjWsF.OpenFromFile(xjFolder,0);
IFields xjFields =newFieldsClass();
IFieldsEdit xjFieldsEdit;
xjFieldsEdit = (IFieldsEdit)xjFields;
IField xjField =newFieldClass();
IFieldEdit xjFieldEdit = (IFieldEdit)xjField;
xjFieldEdit.Name_2 = "Shape";
xjFieldEdit.Type_2 = esriFieldType.esriFieldTypeGeometry;
IGeometryDef xjGeometryDef =newGeometryDefClass();
IGeometryDefEdit xjGDefEdit = (IGeometryDefEdit)xjGeometryDef;
xjGDefEdit.GeometryType_2 = esriGeometryType.esriGeometryPoint;
//定義座標系
ISpatialReferenceFactory pSRF =newSpatialReferenceEnvironmentClass();
ISpatialReference pSpatialReference =pSRF.CreateGeographicCoordinateSystem((int)esriSRGeoCSType.esriSRGeoCS_Beijing1954);
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 =newPointClass();
for(intj = 0; j < xjPointList.Count; j++)
{
xjPoint.X = xjPointList[j].X;
xjPoint.Y = xjPointList[j].Y;
IFeature xjFeature =xjFeatureClass.CreateFeature();
xjFeature.Shape = xjPoint;
xjFeature.Store();
}
IFeatureLayer xjFeatureLayer =newFeatureLayerClass();
xjFeatureLayer.Name = xjShapeName;
xjFeatureLayer.FeatureClass = xjFeatureClass;
returnxjFeatureLayer;
}
//單擊顯示儲存
privatevoidbtn_ShowSave_Click(object sender,EventArgs e)
{
if(Check())
{
List<Point>xjPointList = GetPoint(txt_TxtPath.Text);
if (xjPointList ==null)
{
MessageBox.Show("選擇檔案是空的，轉毛線啊");
}
else
{
IFeatureLayer pFeatureLayer =CreateShpFromPoints(xjPointList, txt_ShpPath.Text);
ShpMapControl.Map.AddLayer(pFeatureLayer);
}
}
}
}
}
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