获取多段线起始点和结束点

c735023723

BDYCAD 发表于 2011-8-11 14:37
ads_name Ename;
  ads_point p1;
  AcGePoint3d Spt,Ept;

怎么选择开始点和结束点之外的别的点呢啊？

BDYCAD

1. ads_real Dist;
   
2. ads_name Ename;
   
3. ads_point p1;
   
4. AcGePoint3d Spt,Ept,Mpt;
   
5. AcGePoint3dArray PtList;
   
6. AcDbObjectId ObjID;
   
7. AcDbCurve *pCur;
   
8. if (acedEntSel(_T("\n选线:"),Ename,p1)!=RTNORM)return;
   
9. acdbGetObjectId(ObjID,Ename);
   
10. if (acdbOpenObject(pCur,ObjID,AcDb::kForWrite)!=Acad::eOk)return;
    
11. pCur->getStartPoint(Spt);//取出对象起点
    
12. pCur->getEndPoint(Ept);//取出对象终点
    
13. pCur->getDistAtPoint(Ept,Dist);
    
14. pCur->getPointAtDist(Dist*0.5,Mpt);//对象中点
    
15. pCur->getStretchPoints(PtList);//对象所有节点
    
16. pCur->close();
    

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