Copying (DeepCloning) from one Drawing to another using .NET

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Copying (DeepCloning) from one Drawing to another using .NET                                                          

by Fenton Webb

        

Here’s how to copy entities from the Model Space of a DWG file hosted inside of AutoCAD to an external DWG file.

1. // copy Model Space to external DWG
   
2. 
   
3. // by Fenton Webb, DevTech 14/9/2012
   
4. 
   
5. [CommandMethod("CopySpaceToExtDWG")]
   
6. 
   
7. public static void CopySpaceToExtDWG()
   
8. 
   
9. {
   
10. 
    
11. // get the working database (in AutoCAD)
    
12. 
    
13. Database sourceDb = Application.DocumentManager.MdiActiveDocument.Database;
    
14. 
    
15. try
    
16. 
    
17. {
    
18. 
    
19.   // create a new destination database
    
20. 
    
21.   using (Database destDb = new Database(true, true))
    
22. 
    
23.   {
    
24. 
    
25.    // get the model space object ids for both dbs
    
26. 
    
27.    ObjectId sourceMsId = SymbolUtilityServices.GetBlockModelSpaceId(sourceDb);
    
28. 
    
29.    ObjectId destDbMsId = SymbolUtilityServices.GetBlockModelSpaceId(destDb);
    
30. 
    
31. 
    
32. 
    
33.    // now create an array of object ids to hold the source objects to copy
    
34. 
    
35.    ObjectIdCollection sourceIds = new ObjectIdCollection();
    
36. 
    
37. 
    
38. 
    
39.    // open the sourceDb ModelSpace (current autocad dwg)
    
40. 
    
41.    using (BlockTableRecord ms = sourceMsId.Open(OpenMode.ForRead)
    
42. 
    
43.         as BlockTableRecord)
    
44. 
    
45.     // loop all the entities and record their ids
    
46. 
    
47.     foreach (ObjectId id in ms)
    
48. 
    
49.      sourceIds.Add(id);
    
50. 
    
51. 
    
52. 
    
53.    // next prepare to deepclone the recorded ids to the destdb
    
54. 
    
55.    IdMapping mapping = new IdMapping();
    
56. 
    
57.    // now clone the objects into the destdb
    
58. 
    
59.    sourceDb.WblockCloneObjects(sourceIds, destDbMsId, mapping, DuplicateRecordCloning.Replace, false);
    
60. 
    
61.    destDb.SaveAs("c:\\temp\\dwgs\\CopyTest.dwg", DwgVersion.Current);
    
62. 
    
63.   }
    
64. 
    
65. }
    
66. 
    
67. catch (System.Exception eXP)
    
68. 
    
69. {
    
70. 
    
71.   System.Windows.Forms.MessageBox.Show(eXP.ToString());
    
72. 
    
73. }
    
74. 
    
75. }

// copy Model Space to external DWG<br /> <br /> // by Fenton Webb, DevTech 14/9/2012<br /> <br /> [CommandMethod("CopySpaceToExtDWG")]<br /> <br /> public static void CopySpaceToExtDWG()<br /> <br /> {<br /> <br /> // get the working database (in AutoCAD)<br /> <br /> Database sourceDb = Application.DocumentManager.MdiActiveDocument.Database;<br /> <br /> try<br /> <br /> {<br /> <br />   // create a new destination database<br /> <br />   using (Database destDb = new Database(true, true))<br /> <br />   {<br /> <br />    // get the model space object ids for both dbs<br /> <br />    ObjectId sourceMsId = SymbolUtilityServices.GetBlockModelSpaceId(sourceDb);<br /> <br />    ObjectId destDbMsId = SymbolUtilityServices.GetBlockModelSpaceId(destDb);<br /> <br /> <br /> <br />    // now create an array of object ids to hold the source objects to copy<br /> <br />    ObjectIdCollection sourceIds = new ObjectIdCollection();<br /> <br /> <br /> <br />    // open the sourceDb ModelSpace (current autocad dwg)<br /> <br />    using (BlockTableRecord ms = sourceMsId.Open(OpenMode.ForRead)<br /> <br />         as BlockTableRecord)<br /> <br />     // loop all the entities and record their ids<br /> <br />     foreach (ObjectId id in ms)<br /> <br />      sourceIds.Add(id);<br /> <br /> <br /> <br />    // next prepare to deepclone the recorded ids to the destdb<br /> <br />    IdMapping mapping = new IdMapping();<br /> <br />    // now clone the objects into the destdb<br /> <br />    sourceDb.WblockCloneObjects(sourceIds, destDbMsId, mapping, DuplicateRecordCloning.Replace, false);<br /> <br />    destDb.SaveAs("c:\\temp\\dwgs\\CopyTest.dwg", DwgVersion.Current);<br /> <br />   }<br /> <br /> }<br /> <br /> catch (System.Exception eXP)<br /> <br /> {<br /> <br />   System.Windows.Forms.MessageBox.Show(eXP.ToString());<br /> <br /> }<br /> <br /> }