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//»æÖÆÆ½»¬Å×ÎïÏß
const int  Clip=10;
void Draw2DGraph::DrawFreeLine()
{
HPEN mhPen = CreatePen(PS_SOLID,1,RGB(255,0,0));
HPEN mOldPen = (HPEN)SelectObject(hMem,mhPen);
// int i=0,j=0;
    int n=12;    //²ÉÑùµã¸öÊý
POINT point[12];
POINT Pt[12];
double t1,t2,t3,t,a,b,c,d,x,y;

point[0].x = 0;
point[0].y = 0;
       
        /*Óû§×ø±êת»»³ÉÆÁÄ»×ø±ê*/
for (int k = 1;k <SEGMENTS;k++)
{
point[k].x = rectClient.left+100+(CTTestpointSet[m_Index][k-1]/m_dXMaxValue)*5*STEP_LEN_X;
point[k].y = rectClient.bottom-100-50-(CTTestpointVoltage[m_Index][k-1]/m_dYMaxValue)*5*STEP_LEN_Y;
}

        point[0].x = point[1].x;
point[0].y = point[1].y;
POINT pt = point[10];
point[11] = pt;
t=0.5f/Clip;

MoveToEx(hMem,point[1].x,point[1].y,NULL);
for (int


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