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要在另一个DWG文件中复制属性块(包括属性定义)和动态块,你首先需要打开目标DWG文件并获取其数据库,然后按照类似的方式进行复制操作。以下是一个简化的示例:
- #include "dbmain.h"
- #include "dbdict.h"
- #include "dbblockrec.h"
- #include "dbattrib.h"
- #include "dbidmap.h"
- #include "acdocman.h"
- // 在目标DWG文件中复制源块参照及其内容
- Acad::ErrorStatus CopyBlockToAnotherDrawing(AcDbBlockReference* pSrcBlkRef, const char* dstDwgFilePath, AcGePoint3d insertionPt)
- {
- Acad::ErrorStatus es;
- // 打开目标DWG文件
- AcDbDatabase* pTargetDb = acdbHostApplicationServices()->workingDatabase();
- if (dstDwgFilePath)
- {
- AcApDocumentManager* docMan = acDocManager;
- if (docMan)
- {
- AcApDocument* pTargetDoc = docMan->open(dstDwgFilePath, true, false, false);
- if (pTargetDoc)
- {
- pTargetDb = pTargetDoc->database();
- }
- else
- {
- acutPrintf("\nFailed to open target drawing file.");
- return Acad::eInvalidInput;
- }
- }
- }
- // 获取源块参照关联的块定义
- AcDbBlockTableRecord* pSrcBlkRec;
- es = acdbOpenObject(pSrcBlkRec, pSrcBlkRef->blockTableRecord(), AcDb::kForRead);
- if (es != Acad::eOk)
- {
- return es;
- }
- // 将源块定义复制到目标数据库
- AcDbBlockTableRecord* pDstBlkRec = pSrcBlkRec->clone(pTargetDb);
- if (!pDstBlkRec)
- {
- pSrcBlkRec->close();
- return Acad::eOutOfMemory;
- }
- pSrcBlkRec->close();
- // 创建一个新的块参照
- AcDbBlockReference* pDstBlkRef = new AcDbBlockReference();
- es = pDstBlkRef->setBlockTableRecord(pDstBlkRec);
- if (es != Acad::eOk)
- {
- delete pDstBlkRef;
- pDstBlkRec->erase();
- return es;
- }
- // 设置插入点
- pDstBlkRef->setPosition(insertionPt);
- // 复制属性(深度复制,包括属性和子对象)
- AcDbIdMapping idMap;
- es = pSrcBlkRef->copy(idMap, pDstBlkRef, Adesk::kTrue);
- if (es != Acad::eOk)
- {
- delete pDstBlkRef;
- pDstBlkRec->erase();
- return es;
- }
- // 对于动态块,还需要更新动态参数
- if (pDstBlkRef->isDynamicBlock())
- {
- AcDbDynamicBlockReference* pDynBlkRef = AcDbDynamicBlockReference::cast(pDstBlkRef);
- AcDbBlockChangeIterator* pBCI = new AcDbBlockChangeIterator(pDynBlkRef);
- if (pBCI->done() == Adesk::kFalse)
- {
- do
- {
- AcDbEntity* pEnt = pBCI->entity();
- if (pEnt->isKindOf(AcDbParameterManagerEntity::desc()))
- {
- AcDbParameterManagerEntity* pParamEnt = AcDbParameterManagerEntity::cast(pEnt);
- // 在这里根据需要设置动态参数值,例如:
- // pParamEnt->setParameter("MyParamName", newValue);
- }
- } while (pBCI->next());
- }
- delete pBCI;
- }
- // 添加新块参照到目标DWG文件的当前空间
- AcDbBlockTableRecord* pCurrentSpace;
- AcDbObjectId pCurrentSpaceId;
- es = pTargetDb->getActiveSpaceId(pCurrentSpaceId);
- if (es == Acad::eOk)
- {
- es = acdbOpenObject(pCurrentSpace, pCurrentSpaceId, AcDb::kForWrite);
- if (es == Acad::eOk)
- {
- es = pCurrentSpace->appendAcDbEntity(pDstBlkRef);
- pDstBlkRef->close(); // 关闭新块参照以便提交到数据库
- pCurrentSpace->close();
- }
- }
- return es;
- }
- // 使用方法
- AcDbBlockReference* pSourceBlockRef; // 假设这是你的源块参照
- const char* destinationDwgFilePath = "path采用to采用your采用destination采用dwg采用file.dwg";
- AcGePoint3d newPosition; // 新的插入点坐标
- CopyBlockToAnotherDrawing(pSourceBlockRef, destinationDwgFilePath, newPosition);
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