Teigha(ODA＜Open Design Alliance＞_开放设计联盟)——cad c# 二次开发

 需将dll库文件与exe文件放同一路径下，运行exe即可执行。

 

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 Teigha.DatabaseServices;
using Teigha.Geometry;
using Teigha.Runtime;namespace WindowsFormsApp1
{public partial class Form1: Form{public Form1(){InitializeComponent();}private void button1_Click(object sender, EventArgs e){using (Services svc = new Services()){string desktopPath = System.Environment.GetFolderPath(System.Environment.SpecialFolder.Desktop);string fname = Path.Combine(desktopPath, "teigha创建的文件.dwg");Database db = new Database();using (var tr = db.TransactionManager.StartTransaction()){BlockTableRecord btr = (BlockTableRecord)tr.GetObject(db.CurrentSpaceId, OpenMode.ForWrite);for (int i = 0; i < 200; i++){Point3d pt1 = new Point3d(i, i + 200, 0);string str = "aaa" + i.ToString();DBText txt = new DBText();txt.Position = pt1;txt.TextString = str;btr.AppendEntity(txt);tr.AddNewlyCreatedDBObject(txt, true);}tr.Commit();db.SaveAs(fname, DwgVersion.AC1027);db.Dispose();}}}private void button2_Click(object sender, EventArgs e){using (Services svc = new Services()){string desktopPath = Environment.GetFolderPath(Environment.SpecialFolder.Desktop);string fname = Path.Combine(desktopPath, "teigha创建的文件.dwg");Database db = new Database(false, false);db.ReadDwgFile(fname, System.IO.FileShare.Read, false, null);using (var tr = db.TransactionManager.StartTransaction()){BlockTableRecord btr = (BlockTableRecord)tr.GetObject(db.CurrentSpaceId, OpenMode.ForWrite);Circle cir = new Circle();for (global::System.Int32 i = 0; i < 20; i++){Point3d pt1 = new Point3d(i, i * 2, 0);double rad = 100;cir.Center = pt1;cir.Radius = rad;cir.ColorIndex = i;}btr.AppendEntity(cir);tr.AddNewlyCreatedDBObject(cir, true);tr.Commit();db.Save();db.Dispose();}}}private void button3_Click(object sender, EventArgs e){using (Services ser = new Services()){string desktopPath = Environment.GetFolderPath(Environment.SpecialFolder.Desktop);string fname = Path.Combine(desktopPath, "teigha创建的文件.dwg");Database db = new Database(false, false);db.ReadDwgFile(fname, System.IO.FileShare.Read, false, null);using (var trans = db.TransactionManager.StartTransaction()){BlockTableRecord btrec = (BlockTableRecord)trans.GetObject(db.CurrentSpaceId, OpenMode.ForWrite);foreach (ObjectId objid in btrec){Entity ent = trans.GetObject(objid, OpenMode.ForWrite) as Entity;if (ent.GetType().Name == "DBText"){DBText txt = (DBText)ent;if (txt.TextString == "aaa2"){txt.TextString = "teigha";}}}trans.Commit();}db.Save();db.Dispose();}}}
}