.net开发的从text读取特定格式数据并生成图形

muli 发表于 2006-10-17 14:33:00

我是一个初学者，不懂编程，也不懂arx，最近才开始学C#.net + ARX开发CAD，刚作出一个小程序，与初学的交流一下，也请高手帮我完善一下，因我我没有加异常处理^_^，加了老是“并非所有代码路径都返回值”的错误，所以删了~~~希望谁能帮我改写一下，程序如下：
using System ; using System.Collections; using System.ComponentModel; using System.Windows.Forms; using System.Data; using System.IO; using System.Collections.Specialized; using Autodesk.AutoCAD.Runtime ; using Autodesk.AutoCAD.DatabaseServices; using Autodesk.AutoCAD.ApplicationServices; //using Autodesk.AutoCAD.Colors; using Autodesk.AutoCAD.Geometry; using Autodesk.AutoCAD.EditorInput;

namespace ClassLibrary {  /// <summary>  /// Summary description for MyClass.  /// </summary>  public class MyClass  {   public MyClass()   {    //    // TODO: Add constructor logic here    //   }
  static public ObjectId CreateLayer()   {    ObjectId layerId; //它返回函数的值    Database db = HostApplicationServices.WorkingDatabase;    Transaction trans = db.TransactionManager.StartTransaction();    //首先取得层表……    LayerTable lt = (LayerTable)trans.GetObject(db.LayerTableId, OpenMode.ForWrite);    //检查EmployeeLayer层是否存在……    if (lt.Has("LAJ"))    {     layerId = lt["LAJ"];    }    else    {     //如果EmployeeLayer层不存在，就创建它     LayerTableRecord ltr = new LayerTableRecord();     ltr.Name = "LAJ"; //设置层的名字     ltr.Color = Autodesk.AutoCAD.Colors.Color.FromColorIndex(Autodesk.AutoCAD.Colors.ColorMethod.ByAci, 1);     layerId = lt.Add(ltr);     trans.AddNewlyCreatedDBObject(ltr, true);    }      trans.Commit();    trans.Dispose();    return layerId;   }
  static public Point3dCollection InputCoo()   {         Point3dCollection point3dCollection = new Point3dCollection();     System.Windows.Forms.OpenFileDialog openFileDialog1 = new System.Windows.Forms.OpenFileDialog();     OpenFileDialog openFileDialog = new OpenFileDialog();     openFileDialog1.InitialDirectory =  @"D:\Documents and Settings\muli\My Documents\";     openFileDialog1.Filter = "txt files (*.txt)|*.txt|All files (*.*)|*.*";     openFileDialog1.FilterIndex = 1;     openFileDialog1.RestoreDirectory = true ;     if (openFileDialog1.ShowDialog() == DialogResult.OK)     {       StreamReader sr = new StreamReader(openFileDialog1.FileName,System.Text.Encoding.Default);       string [] sLine = null;          ArrayList arrText = new ArrayList();       //    string delimStr = ",,,";       //    char [] delimiter = delimStr.ToCharArray();       while (sr.Peek() != -1)       {        string aa = sr.ReadLine();        string delimStr = " ,";        char [] delimiter = delimStr.ToCharArray();
       sLine = aa.Split(delimiter);             for (int i = 0; i < 3; i++)        {         string sL = sLine;         arrText.Add(sL);        }             }      string[] arrString = new string;         arrText.CopyTo(arrString,0);      //以下代码将arrString中的元素转为Point3dCollection      for (int C = 0; C < arrText.Count/3; C++)      {                               double X = System.Convert.ToDouble(arrString);       double Y = System.Convert.ToDouble(arrString);       Point3d point3d = new Point3d(X,Y,0);       point3dCollection.Add(point3d);      }      sr.Close();         return point3dCollection;      }     else     {      MessageBox.Show("打开/读写文件出错");      return null;     }   }      static public void createpline()   {    Point3dCollection ptArr = InputCoo();//定义三维坐标数组对象    Editor ed = Autodesk.AutoCAD.ApplicationServices.Application.DocumentManager.MdiActiveDocument.Editor;    Database db = HostApplicationServices.WorkingDatabase;    Transaction trans = db.TransactionManager.StartTransaction();    try    {     Polyline2d pline = new Polyline2d(Poly2dType.SimplePoly, ptArr, 0.0, true, 0.0, 0.0, null);     ObjectId layerLAJ = CreateLayer();     pline.Closed = true;     pline.LayerId = layerLAJ;     BlockTable bt = (BlockTable)trans.GetObject(db.BlockTableId, OpenMode.ForRead);     BlockTableRecord btr = (BlockTableRecord)trans.GetObject(db.CurrentSpaceId,OpenMode.ForWrite );     btr.AppendEntity(pline);                 trans.AddNewlyCreatedDBObject(pline,true);     trans.Commit();    }    catch    {     ed.WriteMessage("Error!");    }    finally    {     trans.Dispose();    }   }  }
 }

另，坐标文件的格式如下：
1,X,Y
2,X,Y
3,x,Y
......
其中，分隔符可以是“,”，或者空格。

muli 发表于 2006-10-25 09:45:00

为什么没有高手帮我看一下呢？才哥呢？

cooolseee 发表于 2013-11-18 23:20:33

我也想学I学习

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.net开发的从text读取特定格式数据并生成图形