ObjectARX学习笔记(三十)---如何克隆实体clone(),getTransformedCopy()

我不是女神ヾ 2022-08-13 16:54 335阅读 0赞

<pre name="code" class="cpp">AcDbDatabase *pDataBase = NULL;
    		pDataBase = acdbCurDwg();  //根据需要传入不同AcDbDatabase 就可以做到不同dwg克隆实体
    	
    		Acad::ErrorStatus es = Acad::eOk;
    			
    		//
    		AcDbBlockTable *pBlockTable = NULL;
    		es = pDataBase->getBlockTable(pBlockTable, AcDb::kForRead); //得到块表指针
    		if (Acad::eOk != es)
    			return false;
    
    		AcDbBlockTableRecord *pBlockTableRecord = NULL;
    		es = pBlockTable->getAt(ACDB_MODEL_SPACE,pBlockTableRecord,AcDb::kForWrite);	//得到块表记录指针
    		if (Acad::eOk != es)
    			return false;
    
    		pBlockTable->close();
    		pBlockTable = NULL;
    
    		AcDbBlockTableRecordIterator *pBlockIter = NULL;
    		es = pBlockTableRecord->newIterator(pBlockIter);
    		if (Acad::eOk != es)
    			return false;
    		AcDbEntity *pEntity = NULL;
    		AcGeMatrix3d xform;
    		xform.setToTranslation(AcGeVector3d(100,500,0));
    		AcDbObjectId objTmpId = AcDbObjectId::kNull;
    		for (pBlockIter->start(); !pBlockIter->done(); pBlockIter->step())
    		{
    			pBlockIter->getEntityId(objTmpId);
    			AcDbObjectPointer<AcDbEntity> pEnt(objTmpId, AcDb::kForWrite);
    			if (pEnt.openStatus() == Acad::eOk)
    			{
    					
    					//pEntity = AcDbEntity::cast(pEnt->clone());//克隆不移动
    					pEnt->getTransformedCopy(xform,(AcDbEntity*&)pEntity); //克隆移动实体
    					pEntity->setColorIndex(1);			
    			}
    
    		}
    
    		pBlockTableRecord->appendAcDbEntity(objTmpId,pEntity);
    		pEntity->close();
    		pBlockTableRecord->close();
    		pBlockTableRecord = NULL;
    	
    		if (pBlockIter != NULL)
    		{
    			delete pBlockIter;
    			pBlockIter = NULL;
    		}
    		return true;