MFC课程设计报告(15)

void CMyView::Gettingfunction() //提取线的函数 {

if(m_Get==TRUE) return;

for(int i=0;i<Save.size();i++) {

//计算两点间的距离 double

d=sqrt(pow(Save[i].m_StartPoint.y-Save[i].m_EndPoint.y,2)+pow(Save[i].m_StartPoint.x-Save[i].m_EndPoint.x,2));

double

d1=sqrt(pow(Save[i].m_StartPoint.y-m_startPoint.y,2)+pow(Save[i].m_StartPoint.x-m_endPoint.x,2));

double

d2=sqrt(pow(Save[i].m_EndPoint.y-m_startPoint.y,2)+pow(Save[i].m_EndPoint.x-m_endPoint.x,2));

if((d1+d2)-d<1) //误差比较 {

CDC *pdc=GetDC();

CPen pen(0,Save[i].m_nLineWidth,RGB(255,0,0)); pdc->SelectObject(&pen);

pdc->MoveTo(Save[i].m_StartPoint); pdc->LineTo(Save[i].m_EndPoint);

CPen pen1(0,Save[i].m_nLineWidth,RGB(125,125,125)); pdc->SelectObject(&pen1);

pdc->MoveTo(Save[i].m_StartPoint); pdc->LineTo(Save[i].m_EndPoint);

}

CSave dlg_save; dlg_save.DoModal(); } }

void CMyView::OnSave() //存储函数 {

// TODO: Add your command handler code here

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