急呀!请问版主和大侠们,我这个反应器怎么用不起?

tom.wery

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,

li_master

加入rector你也得用recortor对象吧！