【转帖】插入外部图块时的错误,提示实体为空?????????
 

插入外部图块时的错误,提示实体为空?????????
插入外部图块时的错误,提示实体为空?????????
acdocmanager->lockdocument( acdocmanager->curdocument(), acap::kwrite, null, null,true) ;
//////////////////////////////////
acdbobjectid id;
acdbobjectidarray list;
acdbdatabase extdatabase( adesk::kfalse );

if (acad::eok != extdatabase.readdwgfile( "c:\\d.dwg")) //打开图库文件
// if (acad::eok != extdatabase.readdwgfile( dwgname ))
{
acedalert( "error reading dwg!" );
return;
}
acdbblocktable* pbt;
if (acad::eok != extdatabase.getsymboltable( pbt, acdb::kforread ))
{
acedalert( "error getting blocktable of dwg" );
return;
}
acdbblocktablerecord* pbtr;
acad::errorstatus es = pbt->getat( _t("bigblock"), pbtr, acdb::kforread );
//"bigblock"是要插入的块名
pbt->close();
if (acad::eok != es) {
acedalert( "error getting the specific blockdef of dwg" );
return;
}
acdbblockreferenceiditerator *pitr;
if (acad::eok != pbtr->newblockreferenceiditerator(pitr))
{
acedalert( "error iterating" );
pbtr->close();
return;
}
for (pitr->start(); !pitr->done(); pitr->step())
{
acdbobjectid blkrefid;
if (acad::eok == pitr->getblockreferenceid(blkrefid))
{
list.append(blkrefid);
break;
}
}
delete pitr;
pbtr->close();
if (list.isempty()) {
acedalert( "no entities found in model space of dwg" );
return;
}
acdbdatabase *ptempdb;
if (acad::eok != extdatabase.wblock( ptempdb, list, acgepoint3d::korigin ))
{
acedalert( "wblock failed!" );
return;
}
if (acad::eok != acdbhostapplicationservices()->workingdatabase()
->insert( acgematrix3d::kidentity, ptempdb ))
acedalert( "insert failed!" );
delete ptempdb;
// 如果不需要插入块参照，将模型空间中的最后一个对象删除即可
ads_name lastent;
if (acdbentlast(lastent) != rtnorm)
{
acedalert("获得模型空间最后一个实体失败！");
return;
}
acdbobjectid entid;
es = acdbgetobjectid(entid, lastent);
acdbentity *pent;
es = acdbopenacdbentity(pent, entid, acdb::kforwrite);
pent->erase();
pent->close();
//////////////////////////
//用窗口的时候
acdocmanager->unlockdocument( acdocmanager->curdocument());//

程序运行插入块时提示实体为空"no entities found in model space of dwg" ,应该是这里出错了,list.append(blkrefid);
break;这两句没有执行,这是什么原因?
pbtr中没有blockreference，应将pbtr中的所有entity insert to curdb
楼上的可以说的更详细一点好吗?
acdbobjectid blkid = pbtrecord->objectid();
//将块写到一临时数据库中
acdbdatabase *ptempdb;
extdatabase.wblock(ptempdb,blkid);
谢谢楼上的兄弟,问题已解决!
程序只是把该图块插入到当前图形的块表中,怎样把该图块画到当前图形中呀????????
刚刚开始学习arx不就，请教楼主，如在当前图中何绘制该图块？
谢谢！qq：19154480
qq：19154480
msn：freejustinji@hotmail.com
e-mail：justin3@citiz.net