最近寫了個(gè)工具，將指定目錄下的CAD文件批量轉(zhuǎn)換為圖片格式。

首先需要添加對應(yīng)的引用 ：

在AutoCAD2008的環(huán)境下對應(yīng)AutoCAD 2008 Type Library 和 AutoCAD/ObjectDBX  Common 17.0 Type Library 這兩個(gè)引用，

筆者由于是AutoCAD2010，只找到了AutoCAD 2010 Type Library 沒能找到第二個(gè)，百度后得知添加對文件“C:\Program Files\Common Files\Autodesk Shared\axdb18enu.tlb”的引用就可以了。

初始化AutoCAD，根據(jù)版本不同對應(yīng)的ProgramID也不相同：

 1 private static AcadApplication _app = null; 

1 #region 初始化CAD程序 2 #region CAD ProgramID對照表 3 //AutoCAD 2004 4 //R16 5 //AutoCAD.Application.16 6 //AutoCAD 200 7 //R16. 8 //AutoCAD.Application.16. 9 //AutoCAD 2006 10 //R16. 11 //AutoCAD.Application.16. 12 //AutoCAD 2007 13 //R17 14 //AutoCAD.Application.17 15 //AutoCAD 2008 16 //R17. 17 //AutoCAD.Application.17. 18 //AutoCAD 2009 19 //R17. 20 //AutoCAD.Application.17. 21 //AutoCAD 2010 22 //R18 23 //AutoCAD.Application.18 24 //AutoCAD 20 25 //R18. 26 //AutoCAD.Application.18. 27 #endregion 28 string programID = "AutoCAD.Application.18.0"; 29 try 30 { 31 //如果CAD已經(jīng)打開，就直接獲取 32 _app = (AcadApplication)Marshal.GetActiveObject(programID); 33 } 34 catch 35 { 36 try 37 { 38 //創(chuàng)建新的實(shí)例 39 _app = (AcadApplication)new AcadDocument().Application; 40 } 41 catch (Exception ex) 42 { 43 return; 44 } 45 } 46 #endregion

然后加載CAD文件并轉(zhuǎn)換為圖片格式，轉(zhuǎn)換完成后需要關(guān)閉對應(yīng)的CAD文件釋放占用：

1 AcadDocument doc = null; 2 string destPath = string.Empty; 3 try 4 { 5 doc = _app.Documents.Open(pFile.FullName, true); 6 doc.SetVariable("sdi", 0); 7 doc.SetVariable("Filedia", 0); 8 doc.SetVariable("RASTERPREVIEW", 1); 9 doc.SetVariable("BACKGROUNDPLOT", 0); 10 doc.ActiveLayout.ConfigName = "PublishToWeb JPG.pc3"; 11 doc.ActiveLayout.UseStandardScale = true; 12 doc.ActiveLayout.StandardScale = AcPlotScale.acScaleToFit; 13 doc.ActiveLayout.PlotType = AcPlotType.acExtents; 14 doc.ActiveLayout.CenterPlot = true; 15 doc.ActiveLayout.PlotRotation = AcPlotRotation.ac0degrees; 16 doc.ActiveLayout.PlotType = Autodesk.AutoCAD.Interop.Common.AcPlotType.acExtents; 17 doc.Plot.QuietErrorMode = true; 18 destPath = Path.Combine(pFile.Directory.FullName, Path.GetFileNameWithoutExtension(pFile.Name) + ".jpg"); 19 doc.Plot.PlotToFile(destPath, "PublishToWeb JPG.pc3"); 20 21 } 22 catch (System.Exception e) 23 { 24 return false; 25 } 26 finally 27 { 28 if (doc != null) doc.Close(false); 29 }

在全部處理完成后需要關(guān)閉CAD應(yīng)用：

#region 關(guān)閉CAD程序 try { _app.Quit(); } catch (Exception ex) { return; } #endregion