CDrawNode* pDrawNode=(CDrawNode*)pView->GetDocument()->m_objects.GetNext(circlepos);

if(pDrawNode!=NULL)

{

if(nIndex==pDrawNode->GetObjIndex())

{//计算箭线的新位置

if(abs(length)<abs(width)&&width<0)

deltarect.TopLeft()=pDrawNode->GetHandle(4);

if(abs(length)<abs(width)&&width>0)

deltarect.TopLeft()=pDrawNode->GetHandle(8);

if((abs(length)>abs(width)&&width>0&&length<0)||    (abs(length)>abs(width)&&width<0&&length<0))

    deltarect.TopLeft()=pDrawNode->GetHandle(6);

if((abs(length)>abs(width)&&length>0&&width>0)||

    (abs(length)>abs(width)&&length>0&&width<0))

    deltarect.TopLeft()=pDrawNode->GetHandle(2);                                    }}i++;}}}

    pDrawObj->MoveTo(deltarect,pView);

    }

    if(Index==pDrawObj->m_BackConnect)

    {//节点是箭线终节点

        CRect deltarect=pDrawObj->m_position;

        deltarect.TopLeft()+=delta;

        int length=deltarect.top-deltarect.bottom;

        int width=deltarect.left-deltarect.right;

        if(abs(length)<abs(width)&&width<0)

                                        deltarect.TopLeft()=pDrawCircle->GetHandle(4);

    if(abs(length)<abs(width)&&width>0)

    deltarect.TopLeft()=pDrawCircle->GetHandle(8);

    if((abs(length)>abs(width)&&width>0&&length<0)||    (abs(length)>abs(width)&&width<0&&length<0))

    deltarect.TopLeft()=pDrawCircle->GetHandle(6);

    if((abs(length)>abs(width)&&length>0&&width>0)||

    (abs(length)>abs(width)&&length>0&&width<0))

    deltarect.TopLeft()=pDrawCircle->GetHandle(2);