[每日一码] 如何从一个image定义得到所有引用它的raster image

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1. void GetRasterImageReferences(const ACHAR* strRasterImgName)
2. {
3. Acad::ErrorStatus es;
5. AcDbObjectId dicoId;
7. if((dicoId = AcDbRasterImageDef::imageDictionary(acdbCurDwg())) == AcDbObjectId::kNull)
8. {
9.   acutPrintf(L"\nImage dictionary does not exist...");
10.   return;
11. }
13. AcDbDictionary* pDict;
14. if((es = acdbOpenObject((AcDbObject*&)pDict, dicoId, AcDb::kForRead)) != Acad::eOk)
15. {
16.   acutPrintf(L"\nCould not open image dictionary...");
17.   return;
18. }
21. AcDbRasterImageDef* pImageDef;
23. if (!pDict->has(strRasterImgName))
24. {
25.   acutPrintf(L"\nImage dictionary does not contain specified definition...");
26.   return;
27. }
29. es = pDict->getAt(strRasterImgName, (AcDbObject*&)pImageDef, AcDb::kForRead);
30. pDict->close();
32. AcDbObjectIdArray hardPointerIds;
33. AcDbObjectIdArray softPointerIds;
34. AcDbObjectIdArray hardOwnershipIds;
35. AcDbObjectIdArray softOwnershipIds;
38.     asdkReferencesFiler filer;
40. pImageDef->dwgOut(&filer);
41.     pImageDef->close();
43.     hardPointerIds   = filer.m采用hardPointerIds;
44.     softPointerIds   = filer.m采用softPointerIds;
45.     hardOwnershipIds = filer.m采用hardOwnershipIds;
46.     softOwnershipIds = filer.m采用softOwnershipIds;
49. for (int i = 0; i < softPointerIds.length(); i++)
50. {
51.   AcDbObject* pReference;
52.   if((es = acdbOpenObject((AcDbObject*&)pReference, softPointerIds<i>, AcDb::kForRead)) != Acad::eOk)
53.   {
54.    acutPrintf(L"\nCould not open object");
55.    continue;
56.   }
58.   //acutPrintf(L"\nReference type: %s", pReference->isA()->name());
60.   AcDbRasterImageDefReactor* pImgReactor = NULL;
62.   if ((pImgReactor = AcDbRasterImageDefReactor::cast(pReference)) != NULL )
63.   {
64.    AcDbRasterImage* pImgReference;
65.    if((es = acdbOpenObject((AcDbObject*&)pImgReference, pImgReactor->ownerId(), AcDb::kForRead)) != Acad::eOk)
66.    {
67.     acutPrintf(L"\nCould not open image ref...");
68.    }
69.    else
70.    {
71.     AcDbExtents extents;
72.     pImgReference->getGeomExtents(extents);
74.     acutPrintf(L"\nImage Reference position: [%f, %f, %f]", extents.minPoint().x, extents.minPoint().y, extents.minPoint().z);
75.     pImgReference->close();
76.    }
77.   }
79.   pReference->close();
80. }
82. }

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