void CTestCommands::TestSelectSubEntity()
        {
            MrxDbgSelSet ss;
            ss.setSelectSubEntitys(true);
            ss.userSelect(_T("选择对象"),NULL,NULL);

            McDbObjectIdArray aryId;
            ss.asArray(aryId);

            if(aryId.isEmpty())
                return;

            // 得到选择的块里面的子实体。
            std::map<McDbObjectId,McGeMatrix3d*> mapSubEntitys;
            ss.getSubEntitys(mapSubEntitys);


            std::map<McDbObjectId,McGeMatrix3d*>::iterator iter = mapSubEntitys.begin();
            for(;iter != mapSubEntitys.end();++iter)
            {
                McGeMatrix3d* pMat = iter->second;

                McDbObjectPointer<McDbEntity> spEnt(iter->first,McDb::kForRead);
                if(spEnt.openStatus() != Mcad::eOk)
                {
                    continue;
                }

                McDbEntity* pClone = (McDbEntity*)spEnt->clone();

                if(pClone == NULL)
                    continue;

                pClone->transformBy(*pMat);

                // 把块里面的子实体，拿出来，显示在图上。

                MrxDbgUtils::addToCurrentSpaceAndClose(pClone);
            }

            // 释放内存。
            iter = mapSubEntitys.begin();
            for(;iter != mapSubEntitys.end();++iter)
            {
                McGeMatrix3d* pMat = iter->second;
                delete pMat;
            }
        }