[分享]：选择当前图形中的实体，作为块插入外部DWG的代码

cjh00222001

同时想请教各位，如果外部DWG由程序生成，用对话框预览的方法？因为acdbDisplayPreviewFromDwg
(path,GetDlgItem(IDC_COUSTOM1)->GetSafeHwnd());无法实现

1. [font=courier new]
   
2. //代码
   
3. addBlockToDwg()
   
4. {
   
5.         //省略构造选择集的
   
6.         AcDbObjectIdArray objIdArray(0,8);
   
7.         AcDbDatabase *pTempDb;
   
8.         ads_name ent;
   
9.         long nss;
   
10.         AcDbObjectId objId;
    
11.         acedSSLength(ss,&nss);
    
12.         for(long i=0;i<nss;i++)
    
13.         {
    
14.         acedSSName(ss,i,ent);
    
15.         acdbGetObjectId(objId,ent);
    
16.         objIdArray.append(objId);
    
17.            }
    
18.         acedSSFree(ss);
    
19. 
    
20. AcGePoint3d   BASEPT(newbasept[X],newbasept[Y],newbasept[Z]);
    
21. 
    
22. acdbHostApplicationServices()->workingDatabase()->wblock(pTempDb,objIdArray,BASEPT);
    
23. AcDbDatabase *EquipDb = new AcDbDatabase(Adesk::kFalse);
    
24. AcDbDatabase *EquipDb1 = new AcDbDatabase(Adesk::kTrue);
    
25. CString tukuname;
    
26. CString path;
    
27. CString path1;
    
28. path="D:\\dwgname.dwg";//外部DWG
    
29. path="D:\\newdwgname.dwg";
    
30. ads_printf("\n%s\n",path);
    
31. ads_printf("\n%s\n",path1);
    
32. EquipDb->readDwgFile(path,_SH_DENYRW);//读取外部DWG
    
33.         AcDbObjectId blockId;
    
34.     EquipDb->insert(blockId,"signname",pTempDb);
    
35.     EquipDb->saveAs(path);
    
36. 
    
37.    EquipDb1->insert(blockId,"signname",pTempDb);//以下代码生成新的DWG，包含可见的块参照
    
38.    AcDbBlockTable *pBlockTable;
    
39.    AcDbBlockTableRecord *pBTableRecord;
    
40.    AcDbBlockReference *pBTableRefer;
    
41.    AcDbObjectId blockId1;
    
42.    AcDbObjectId insId;
    
43.    EquipDb1->getBlockTable(pBlockTable,AcDb::kForRead);
    
44.    pBlockTable->getAt(signname,blockId1);
    
45.    pBlockTable->getAt(ACDB_MODEL_SPACE,pBTableRecord,AcDb::kForWrite);
    
46.    
    
47. pBTableRefer= new AcDbBlockReference(BASEPT,blockId1);
    
48. pBTableRecord->appendAcDbEntity(insId,pBTableRefer);
    
49. pBTableRefer->close();
    
50. pBTableRecord->close();
    
51. pBlockTable->close();
    
52.    EquipDb1->saveAs(path1);
    
53.                 delete EquipDb;
    
54.                 delete pTempDb;
    
55.                 delete EquipDb1;
    
56. }
    
57. 
    
58. [/font]

复制代码

XDSoft

下面是ARX联机帮助，注意下蓝色的部分。

2. [font=courier new]
   
3. acdbDisplayPreviewFromDwg Global Function bool
   
4. 
   
5. acdbDisplayPreviewFromDwg(
   
6. 
   
7. const char * pszDwgfilename,
   
8. 
   
9. void* pPreviewWnd,
   
10. 
    
11. const Adesk::UInt32* pBgColor = NULL);
    
12. 
    
13. pszDwgfilename Input path\filename string
    
14. pPreviewWnd Input HWND for window within which to display preview
    
15. pBgColor Description to come
    
16. 
    
17. This function obtains the preview image [color=blue](if any)[/color] of the drawing specified by pszDwgfilename
    
18. and displays it in the window identified by the HWND argument pPreviewWnd.
    
19. 
    
20. The image size varies up to a maximum size no larger than 256 x 188 pixels.
    
21. If the pPreviewWnd window is larger than the image, then the image will be stretched to fit.
    
22. But, if the window is smaller than the image, the image will not be
    
23. adjusted and will spill out beyond the window's borders.
    
24. 
    
25. Returns true if successful; otherwise, it returns false.
    
26. 
    
27. 
    
28. [/font]

[font=courier new]<br /> acdbDisplayPreviewFromDwg Global Function bool<br /> <br /> acdbDisplayPreviewFromDwg(<br /> <br /> const char * pszDwgfilename,<br /> <br /> void* pPreviewWnd,<br /> <br /> const Adesk::UInt32* pBgColor = NULL);<br /> <br /> pszDwgfilename Input path\filename string <br /> pPreviewWnd Input HWND for window within which to display preview <br /> pBgColor Description to come <br /> <br /> This function obtains the preview image [color=blue](if any)[/color] of the drawing specified by pszDwgfilename<br /> and displays it in the window identified by the HWND argument pPreviewWnd.<br /> <br /> The image size varies up to a maximum size no larger than 256 x 188 pixels. <br /> If the pPreviewWnd window is larger than the image, then the image will be stretched to fit. <br /> But, if the window is smaller than the image, the image will not be<br /> adjusted and will spill out beyond the window's borders.<br /> <br /> Returns true if successful; otherwise, it returns false.<br /> <br /> <br /> [/font]

2. [font=courier new]
   
3. AcDbDatabase::saveAs Function Acad::ErrorStatus
   
4. 
   
5. saveAs(
   
6. 
   
7. const char* fileName);
   
8. 
   
9. fileName Input file name or URL to write database out to
   
10. 
    
11. Runs the save process on the database and writes the drawing information out to fileName.
    
12. The fileName argument is taken as is. If no file extension is present, .dwg is not appended.
    
13. 
    
14. [color=blue]If the database executing the saveAs() function is not the current database
    
15. in the AutoCAD editor, then the thumbnail preview image is not saved to fileName.[/color]
    
16. 
    
17. Returns Acad::eOk if process completes successfully
    
18. 
    
19. [/font]

[font=courier new]<br /> AcDbDatabase::saveAs Function Acad::ErrorStatus<br /> <br /> saveAs(<br /> <br /> const char* fileName);<br /> <br /> fileName Input file name or URL to write database out to <br /> <br /> Runs the save process on the database and writes the drawing information out to fileName. <br /> The fileName argument is taken as is. If no file extension is present, .dwg is not appended.<br /> <br /> [color=blue]If the database executing the saveAs() function is not the current database <br /> in the AutoCAD editor, then the thumbnail preview image is not saved to fileName.[/color]<br /> <br /> Returns Acad::eOk if process completes successfully<br /> <br /> [/font]