【转帖】急呀!请问版主和大侠们,我这个反应器怎么用不起?
 

急呀!请问版主和大侠们,我这个反应器怎么用不起?
急呀!请问版主和大侠们,我这个反应器怎么用不起?
我在做布局视口时采用多边形作边界.我看cad本身都把多边形都附有永久的反应器.
我用下面的代码怎么就加不起永久反应器
acdbviewport *pviewport = new acdbviewport();
pviewport->setheight(height);
pviewport->setwidth(width);
pviewport->setviewcenter(acgepoint2d(rotatemodelcenterpt.x,rotatemodelcenterpt.y));
pviewport->settwistangle(twistangle);
pviewport->setlenslength(50.0);
pviewport->setcustomscale(scale);
pviewport->setviewheight(height*scale);
pviewport->setviewdirection(acgevector3d(0,0,1));
pviewport->setnonrectclipentityid(trimobjectid);
pviewport->setnonrectclipon();
//acedalert("3");
// 将新的布局对象添加到图纸空间块表记录中
acdbobjectid viewportid;
pblktblrcd->appendacdbentity(viewportid, pviewport);
//pviewport->downgradeopen();
pviewport->seton();
pviewport->upgradeopen();
pviewport->settransparent();
pviewport->close();
pblktblrcd->close();
acdbentity *pent;
acad::errorstatus esadddrecactor;
esadddrecactor = acdbopenacdbentity(pent, entid, acdb::kforwrite);
if (esadddrecactor == acad::eok)
{
pent->addpersistentreactor(viewportid);
pent->close();
}
红色代码段怎么不起作用,