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admin 发表于 2024-3-14 20:26:23

[每日一码] 克隆一个块定义（AcDbBlockTableRecord）

AcDbObjectId cloneBlockRecord(AcDbObjectId from, char *to)
{
    AcDbBlockTable *pBlockTable;
    AcDbBlockTableRecord *pBlockTableRecord;
    AcGePoint3d tempOrigin;
    AcDbObjectIdArray arrayId;
    AcDbBlockTableRecordIterator *pIter;
    AcDbObjectId objId, tableId, blockTargetId;
    AcDbDatabase *pDB;
    AcDbIdMapping idMap;

    char buffer;


    pDB = acdbHostApplicationServices()->workingDatabase();

    acdbOpenAcDbObject ((AcDbObject *&)pBlockTableRecord, from,
AcDb::kForRead);
    tempOrigin = pBlockTableRecord->origin();   
    pBlockTableRecord->newIterator(pIter);
    while (!pIter->done())
    {
      pIter->getEntityId(objId);
      arrayId.append(objId);
      pIter->step();
    }
    delete pIter ;

    tableId = pBlockTableRecord->ownerId();
    pBlockTableRecord->close();


    pDB->getBlockTable(pBlockTable, AcDb::kForRead);

    strcpy(buffer, to);
    if(pBlockTable->has(buffer))
    {
      for (int i = 0; i < 255; i++)
      {
            sprintf(buffer, "%s%d", to, i);
            if(!pBlockTable->has(buffer))
            {
                break;
            }
      }
    }

    pBlockTable->upgradeOpen ();
    pBlockTableRecord = new AcDbBlockTableRecord;
    pBlockTableRecord->setName(buffer);
    pBlockTableRecord->setOrigin(tempOrigin);

    pBlockTable->add(blockTargetId, pBlockTableRecord);
    pBlockTableRecord->close();
    pBlockTable->close();

    pDB->deepCloneObjects(arrayId, blockTargetId, idMap);

    return blockTargetId;
}

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