如何修改图形中XREF路径（包括嵌套）？

LoveArx

问题：

如何修改图形中XREF路径（包括嵌套）？
How to change the path of Xref (including the nested ones) in a drawing?

解决方案：

下面代码段演示来如何修改图形中XREFS的路径指向一个新的位置。对于嵌套的XREFS，代码递归运行改变路径。这个代码适合把XREFS文件从一个目录改变到另外的目录时候使用。

The following code snippet shows how to change the path of all the Xrefs in a given drawing, to point to a new location. The code sample runs recursively to change the paths of the Xref even in the nested Xrefs. This code is useful in situations where the Xrefed drawings are being migrated from one folder/server to another folder/server.

1. // TODO: Here you can add your own includes / declarations
   
2. #include "acedxref.h"
   
3. void fTest();
   
4. void fXrefRePath(const char* pDwgPath,const char* pNewLocation,long mnDepth = 1);
   
5. 
   
6. 
   
7. ///////////////////////////////////////////////////////////////////////////////////////////////
   
8. //Description: fGetXYPlane
   
9. //1)Call this from ARX defined command
   
10. ///////////////////////////////////////////////////////////////////////////////////////////////
    
11. void fTest()
    
12. {
    
13. acutPrintf(_T("\nTrying to change the paths of XREFs..."));
    
14. fXrefRePath(_T("c:\\test.dwg"),_T("c:\\newlocation\\")); //feel free to change the path as required
    
15. }
    
16. 
    
17. ///////////////////////////////////////////////////////////////////////////////////////////////
    
18. //Description: fGetXYPlane
    
19. //Parameters:
    
20. //a)pDwgPath: Drawing name to repath the XREFs
    
21. //b)pNewLocation: The new folder where the XREF are available
    
22. //c)nDepth: Do not use. It specifies the nest level. It is optional and is used while running recursively
    
23. ///////////////////////////////////////////////////////////////////////////////////////////////
    
24. void fXrefRePath(const TCHAR* pDwgPath,const TCHAR* pNewLocation,long nDepth)
    
25. {
    
26. //preparing the prefix
    
27. TCHAR mPrefix[255];
    
28. 
    
29. if (1 < nDepth)
    
30. {
    
31.   mPrefix[nDepth] = _T('\0');
    
32. }
    
33. else
    
34. {
    
35.   mPrefix[0] = _T('\0');
    
36. }
    
37. 
    
38. AcDbBlockTable *pBT;
    
39. AcDbBlockTableRecord *pBTR;
    
40. AcDbBlockTableIterator *pBTIter;
    
41. 
    
42. AcDbDatabase *pDB = new AcDbDatabase(Adesk::kFalse);
    
43. Acad::ErrorStatus mEs;
    
44. 
    
45. mEs = pDB->readDwgFile(pDwgPath);
    
46. 
    
47. if(Acad::eOk != mEs)
    
48. {
    
49.   acutPrintf(_T("\n%sError: reading database: %s"),mPrefix,pDwgPath);
    
50.   delete pDB;
    
51.   return;
    
52. }
    
53. 
    
54. pDB->getBlockTable(pBT,AcDb::kForRead);
    
55. pBT->newIterator(pBTIter);
    
56. pBT->close();
    
57. 
    
58. const TCHAR *pOldPathName;
    
59. TCHAR *pNewPathName = new TCHAR[255];
    
60. 
    
61. //path buffers
    
62. TCHAR mOldDrive[_MAX_DRIVE];
    
63. TCHAR mOldDir[_MAX_DIR];
    
64. TCHAR mOldFname[_MAX_FNAME];
    
65. TCHAR ext[_MAX_EXT];
    
66. 
    
67. TCHAR mNewDrive[_MAX_DRIVE];
    
68. TCHAR mNewDir[_MAX_DIR];
    
69. TCHAR mNewFname[_MAX_FNAME];
    
70. TCHAR mNewExt[_MAX_EXT];
    
71. 
    
72. 
    
73. acutPrintf(_T("\n%s-%s"),mPrefix,pDwgPath);
    
74. 
    
75. while(!pBTIter->done())
    
76. {
    
77.   if(Acad::eOk != pBTIter->getRecord(pBTR,AcDb::kForRead)) continue;
    
78. 
    
79.   if (pBTR->isFromExternalReference())
    
80.   {
    
81.    //changing the path name
    
82.    pBTR->pathName(pOldPathName);
    
83. 
    
84.    //split the old location
    
85.    _wsplitpath_s(pOldPathName, mOldDrive, mOldDir, mOldFname, ext);
    
86. 
    
87.    //split the new location
    
88.    //file name and ext not used and is not expected to be supplied
    
89.    _wsplitpath_s(pNewLocation, mNewDrive, mNewDir, mNewFname, mNewExt);
    
90. 
    
91.    _wmakepath_s(pNewPathName, MAX_PATH,mNewDrive, mNewDir, mOldFname, ext);
    
92. 
    
93.    //break if unable to upgrade to write
    
94.    if(Acad::eOk != pBTR->upgradeOpen()) break;
    
95.    mEs = pBTR->setPathName(pNewPathName);
    
96. 
    
97.    //recurse to update all the drawings that are refered too
    
98.    fXrefRePath(pNewPathName,pNewLocation,nDepth+1);
    
99.   }
    
100. 
     
101.   pBTR->close();
     
102.   pBTIter->step();
     
103. 
     
104. }
     
105. 
     
106. //save the changes
     
107. if(Acad::eOk != pDB->saveAs(pDwgPath))
     
108.   acutPrintf(_T("\n%sError: unable to save the changes to %s "),mPrefix,pDwgPath);
     
109. 
     
110. //clean up
     
111. delete pBTIter;
     
112. delete pDB;
     
113. }
     

// TODO: Here you can add your own includes / declarations<br /> #include "acedxref.h"<br /> void fTest();<br /> void fXrefRePath(const char* pDwgPath,const char* pNewLocation,long mnDepth = 1);<br /> <br /> <br /> ///////////////////////////////////////////////////////////////////////////////////////////////<br /> //Description: fGetXYPlane<br /> //1)Call this from ARX defined command<br /> ///////////////////////////////////////////////////////////////////////////////////////////////<br /> void fTest()<br /> {<br /> acutPrintf(_T("\nTrying to change the paths of XREFs..."));<br /> fXrefRePath(_T("c:\\test.dwg"),_T("c:\\newlocation\\")); //feel free to change the path as required<br /> }<br /> <br /> ///////////////////////////////////////////////////////////////////////////////////////////////<br /> //Description: fGetXYPlane<br /> //Parameters:<br /> //a)pDwgPath: Drawing name to repath the XREFs<br /> //b)pNewLocation: The new folder where the XREF are available<br /> //c)nDepth: Do not use. It specifies the nest level. It is optional and is used while running recursively<br /> ///////////////////////////////////////////////////////////////////////////////////////////////<br /> void fXrefRePath(const TCHAR* pDwgPath,const TCHAR* pNewLocation,long nDepth)<br /> {<br /> //preparing the prefix<br /> TCHAR mPrefix[255];<br /> <br /> if (1 < nDepth)<br /> {<br />   mPrefix[nDepth] = _T('\0'); <br /> }<br /> else<br /> {<br />   mPrefix[0] = _T('\0');<br /> } <br /> <br /> AcDbBlockTable *pBT;<br /> AcDbBlockTableRecord *pBTR;<br /> AcDbBlockTableIterator *pBTIter;<br /> <br /> AcDbDatabase *pDB = new AcDbDatabase(Adesk::kFalse);<br /> Acad::ErrorStatus mEs;<br /> <br /> mEs = pDB->readDwgFile(pDwgPath);<br /> <br /> if(Acad::eOk != mEs) <br /> {<br />   acutPrintf(_T("\n%sError: reading database: %s"),mPrefix,pDwgPath); <br />   delete pDB;<br />   return;<br /> }<br /> <br /> pDB->getBlockTable(pBT,AcDb::kForRead);<br /> pBT->newIterator(pBTIter);<br /> pBT->close();<br /> <br /> const TCHAR *pOldPathName;<br /> TCHAR *pNewPathName = new TCHAR[255];<br /> <br /> //path buffers<br /> TCHAR mOldDrive[_MAX_DRIVE];<br /> TCHAR mOldDir[_MAX_DIR];<br /> TCHAR mOldFname[_MAX_FNAME];<br /> TCHAR ext[_MAX_EXT];<br /> <br /> TCHAR mNewDrive[_MAX_DRIVE];<br /> TCHAR mNewDir[_MAX_DIR];<br /> TCHAR mNewFname[_MAX_FNAME];<br /> TCHAR mNewExt[_MAX_EXT]; <br /> <br /> <br /> acutPrintf(_T("\n%s-%s"),mPrefix,pDwgPath); <br /> <br /> while(!pBTIter->done())<br /> {<br />   if(Acad::eOk != pBTIter->getRecord(pBTR,AcDb::kForRead)) continue;<br /> <br />   if (pBTR->isFromExternalReference())<br />   {<br />    //changing the path name<br />    pBTR->pathName(pOldPathName);<br /> <br />    //split the old location<br />    _wsplitpath_s(pOldPathName, mOldDrive, mOldDir, mOldFname, ext);<br /> <br />    //split the new location<br />    //file name and ext not used and is not expected to be supplied<br />    _wsplitpath_s(pNewLocation, mNewDrive, mNewDir, mNewFname, mNewExt); <br /> <br />    _wmakepath_s(pNewPathName, MAX_PATH,mNewDrive, mNewDir, mOldFname, ext);<br /> <br />    //break if unable to upgrade to write<br />    if(Acad::eOk != pBTR->upgradeOpen()) break;<br />    mEs = pBTR->setPathName(pNewPathName);<br /> <br />    //recurse to update all the drawings that are refered too<br />    fXrefRePath(pNewPathName,pNewLocation,nDepth+1);<br />   }<br /> <br />   pBTR->close();<br />   pBTIter->step();<br /> <br /> }<br /> <br /> //save the changes<br /> if(Acad::eOk != pDB->saveAs(pDwgPath))<br />   acutPrintf(_T("\n%sError: unable to save the changes to %s "),mPrefix,pDwgPath);<br /> <br /> //clean up<br /> delete pBTIter;<br /> delete pDB;<br /> }<br />