C#中读取cad文件中的属性(原创) 获取CAD属性单行文本的代码片断: using System;using System.IO;using System.Collections.Generic;using System.ComponentModel;using System.Data;using System.Drawing;using System.Text;using System.Windows.Forms;using Autodesk.AutoCAD.ApplicationServices;using ..

离线wzx

六级士官

发帖: 897

金币: 2267

怪币: 0

只看楼主倒序阅读楼主发表于: 2009-09-28

— 本帖被水潭从 CAD 移动到本区(2009-11-14) —

获取CAD属性单行文本的代码片断:

复制代码

using System;
using System.IO;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using Autodesk.AutoCAD.ApplicationServices;
using Autodesk.AutoCAD.DatabaseServices;
Database db = new Database(false, true);
try
{
//把DWG文件读入到一个临时的内存数据库中
db.ReadDwgFile(fullFileName, System.IO.FileShare.ReadWrite, true, null);
//现在进入数据库并获得数据库的块表引用
BlockTable bt = (BlockTable)trans.GetObject(db.BlockTableId, OpenMode.ForRead, false, true);
//从块表的模型空间特性中获得块表记录,块表记录对象包含DWG文件数据库实体
BlockTableRecord btr = (BlockTableRecord)trans.GetObject(bt[BlockTableRecord.ModelSpace], OpenMode.ForRead, false, true);
foreach (ObjectId btrId in btr)
{
DBObject entBlock = (DBObject)trans.GetObject(btrId, OpenMode.ForRead, false, true);
if (entBlock.GetRXClass().DxfName.ToUpper() == "INSERT")
{
BlockReference bRef = (BlockReference)entBlock;
if (bRef.AttributeCollection.Count != 0)
{
System.Collections.IEnumerator bRefEnum = bRef.AttributeCollection.GetEnumerator();
while (bRefEnum.MoveNext())
{
ObjectId aId = (ObjectId)bRefEnum.Current;//这一句极其关键
AttributeReference aRef = (AttributeReference)trans.GetObject(aId, OpenMode.ForRead, false, true);
aRef.TextString;//此语句即获得属性单行文本,请自行在此语句前添加属性单行文本赋于的变量
}
}
}
}
trans.Commit(); //提交事务处理
btr.Dispose();
bt.Dispose();
}
catch (System.Exception ex)
{
MessageBox.Show("\n出错啦: " + ex.Message);
}
finally
{
db.Dispose();
}