社区 › AutoCAD.net/VB.net/C# 编程技术 › 【已解决】用户坐标系出现偏差如何解决？

白糖 发表于 2012-10-11 15:28:16

【已解决】用户坐标系出现偏差如何解决？

本帖最后由 白糖 于 2012-10-11 16:42 编辑

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Drawing;
using System.IO;
using System.Windows.Forms;

using Autodesk.AutoCAD.ApplicationServices;
using Autodesk.AutoCAD.DatabaseServices;
using Autodesk.AutoCAD.EditorInput;
using Autodesk.AutoCAD.Geometry;
using Autodesk.AutoCAD.Runtime;

namespace UCS
{
/// <summary>
/// Description of UserControl1.
/// </summary>
public partial class UserControl1 : UserControl
{
    public static int i = 1;
    public static List<Point3d> pts = new List<Point3d>();

    public UserControl1()
    {
      //
      // The InitializeComponent() call is required for Windows Forms designer support.
      //
      InitializeComponent();
      
      //
      // TODO: Add constructor code after the InitializeComponent() call.
      //
    }
   
   
    public void NewUCS()
    {
      Document doc = Autodesk.AutoCAD.ApplicationServices.Application.DocumentManager.MdiActiveDocument;
      Database db = doc.Database;
      Editor ed = doc.Editor;
      Point3d breakPoint = new Point3d();
      using (Transaction trans = db.TransactionManager.StartTransaction())
      {
      UcsTable ut = trans.GetObject(db.UcsTableId,OpenMode.ForRead) as UcsTable;
      UcsTableRecord utr;
      if (ut.Has("New_UCS") == false)
      {
          utr = new UcsTableRecord();
          utr.Name = "New_UCS";
          ut.UpgradeOpen();
          ut.Add(utr);
          trans.AddNewlyCreatedDBObject(utr,true);
      }else
      {
          utr = trans.GetObject(ut["New_UCS"],OpenMode.ForWrite) as UcsTableRecord;
      }
      //指定原点
      PromptPointOptions pPtOpts = new PromptPointOptions("\n指定原点");
      PromptPointResult pPtRes = ed.GetPoint(pPtOpts);
      if (pPtRes.Status == PromptStatus.OK)
      {
          utr.Origin = pPtRes.Value;
          breakPoint = pPtRes.Value;
      }
      
      //指定Y轴
      pPtOpts = new PromptPointOptions("指定Y轴方向");
      pPtRes = ed.GetPoint(pPtOpts);
      if (pPtRes.Status == PromptStatus.OK)
      {
          Vector3d vec = pPtRes.Value - utr.Origin;
          utr.YAxis = vec.GetNormal();
      }
      
      //Y轴旋转90°为X轴
      utr.XAxis = utr.YAxis.RotateBy(Math.PI*3/2,Vector3d.ZAxis);
      
      Matrix3d mt = Matrix3d.AlignCoordinateSystem(Point3d.Origin,Vector3d.XAxis,Vector3d.YAxis,Vector3d.ZAxis,utr.Origin,utr.XAxis,utr.YAxis,Vector3d.ZAxis);
      ed.CurrentUserCoordinateSystem = mt;
      trans.Commit();
      }
      AddPoint();
    }
   
    // 添加点
   
    public void AddPoint()
    {
      Database db = HostApplicationServices.WorkingDatabase;
      Editor ed = Autodesk.AutoCAD.ApplicationServices.Application.DocumentManager.MdiActiveDocument.Editor;
      Point3d pt;
      PromptPointResult pPtRes;
      PromptPointOptions pPtOpts = new PromptPointOptions("");
      pPtOpts.Message = "\n请选择起点";
      pPtRes = ed.GetPoint(pPtOpts);
      while (pPtRes.Status == PromptStatus.OK | pPtRes.Status != PromptStatus.Cancel)
      {
      pt = pPtRes.Value;
      ed.WriteMessage("选点"+pt.ToString());
      Vector3d vec = db.Ucsorg.GetAsVector();
      AddPoint(pt+vec);
      pts.Add(pt);
      pPtOpts.Message = "\n请选择下一点";
      pPtOpts.UseBasePoint = true;
      pPtOpts.BasePoint = pPtRes.Value;
      pPtRes = ed.GetPoint(pPtOpts);
      }
    }
   
    public static ObjectIdCollection AddPoint(Point3d position)
    {
      DBPoint ent1 = new DBPoint(position);
      DBText ent2 = new DBText();
      ent2.Position = new Point3d(position.X + 5, position.Y + 5, position.Z);
      ent2.TextString = i.ToString();
      ent2.Height = 5;
      Circle ent3 = new Circle(position,Vector3d.ZAxis,5);
      
      Entity[] ents = new Entity;
      ents = ent1;
      ents = ent2;
      ents = ent3;
      ObjectIdCollection entsId = AppendEntity(ents);
      i++;
      return entsId;
    }
   
    public static ObjectIdCollection AppendEntity(params Entity[] ents)
    {
      Database db = HostApplicationServices.WorkingDatabase;
      ObjectIdCollection objIds = new ObjectIdCollection();
      using (Transaction trans = db.TransactionManager.StartTransaction())
      {
      BlockTable bt = (BlockTable)trans.GetObject(db.BlockTableId, OpenMode.ForRead);
      BlockTableRecord btr = (BlockTableRecord)trans.GetObject(bt, OpenMode.ForWrite);
      foreach (var ent in ents)
      {
          ent.ColorIndex = 210;
          objIds.Add(btr.AppendEntity(ent));
          trans.AddNewlyCreatedDBObject(ent, true);
      }
      trans.Commit();
      return objIds;
      }
    }
}
}转换坐标解决了~

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