临时反应器的简单应用

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1. void MyDatabaseReactor::objectModified(const AcDbDatabase * dwg, const AcDbObject * dbObj)
   
2. {
   
3. if (dbObj->isKindOf(AcDbPolyline::desc()))
   
4. {
   
5. AcDbPolyline* pPoly=AcDbPolyline::cast(dbObj);
   
6. int vernum=pPoly->numVerts();
   
7. AcGePoint2d ptCenter;
   
8. AcGePoint2d pt;
   
9. pPoly->getPointAt(0,pt);
   
10. ptCenter.x=pt.x;
    
11. ptCenter.y=pt.y-100;
    
12. pPoly->upgradeOpen();
    
13. for (int i=0;i<vernum;i++)
    
14. {
    
15. pt.rotateBy(2*pi()/vernum,ptCenter);
    
16. pPoly->setPointAt(i,pt);
    
17. }
    
18. pPoly->setClosed(Adesk::kTrue);
    
19. pPoly->setColorIndex(1);
    
20. }
    
21. else if (dbObj->isKindOf(AcDbCircle::desc()))
    
22. {
    
23. AcDbCircle* pCir=AcDbCircle::cast(dbObj);
    
24. pCir->upgradeOpen();
    
25. pCir->setRadius(100);
    
26. pCir->setColorIndex(100);
    
27. }
    
28. 
    
29. }

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