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void CTeeChartDlg::OnBnClickedButtondraw2() {
CSeriesChartSpeed = (CSeries)m_Chart.Series(0); UpdateData(TRUE); if (m_nPointNum<=0) {
MessageBox(_T(\Êý¾ÝµãÊý²»ÄÜСÓÚ0\)); return;
}
DWORD dwTimeS,dwTimeE; CString str(_T(\)); long i(0); double val;
COleSafeArrayXValues; COleSafeArrayYValues;
DWORD pNumElements[] = {m_nPointNum}; XValues.Create(VT_R8, 1, pNumElements); YValues.Create(VT_R8, 1, pNumElements); for(i=0; i XValues.PutElement(&i, &val); val = randf(-20,20); YValues.PutElement(&i, &val); }; //ÓÉÓÚÐèÒª¼ÆËãʱ¼ä£¬»Í¼¾Í²»ÔÚµÚÒ»¸öforÑ»·ÀïʵÏÖÁË dwTimeS = GetTickCount(); ChartSpeed.Clear(); ChartSpeed.AddArray(m_nPointNum,YValues,XValues); dwTimeE = GetTickCount(); dwTimeE -= dwTimeS; str.Format(_T(\ºÄʱ£º%d ms\),dwTimeE); SetDlgItemText(IDC_STATIC_T,str); } Ч¹ûÈçºÎ£¿ ¿´Í¼ ¿ì30±¶£¬1638400¸öµã˲¼äÍê³É Ò»°ãÎÒÃǵÄÊý¾Ý¾³£ÊÇÓÃdoubleÊý×é±£´æµÄ£¬ºÜÉÙÓÃCOleSafeArrayËùÒÔ£¬ÎªÁË·½±ã£¬¿ÉÒÔдһ¸öº¯Êý·½±ã»Í¼ ÈçÏ£º void DrawLine(double* pX,double* pY,long nNum) { COleSafeArrayXValues; COleSafeArrayYValues; long i(0); DWORD wLength = nNum; XValues.Create(VT_R8, 1, &wLength); YValues.Create(VT_R8, 1, &wLength); for(i=0; i XValues.PutElement(&i, pX+i); YValues.PutElement(&i, pY+i); } CSeries Chart = (CSeries)m_Chart.Series(0); Chart.Clear(); Chart.AddArray(nNum,YValues,XValues); } µ÷ÓÃʱֻҪ°ÑÊý×éµÄÊ×µØÖ·ºÍ³¤¶È´«½øÈ¥¾ÍÐÐÁË¡£ 1. 1 Ìí¼ÓTeeChart¿Ø¼þ£¬¸ø¿Ø¼þÌí¼Ó±äÁ¿m_TeeChart Ìí¼ÓTeeChart¿Ø¼þ£¬ÓÒ»÷¿Ø¼þ£¬Ñ¡ÔñÌí¼Ó±äÁ¿£¬vs»á×Ô¶¯¸øÎÒÃÇÒýÈëCTchart1Õâ¸öÀ࣬µ«ÊÇÖ»ÓÐÕâ¸öÀ࣬ÎÒÃÇÊÇÔ¶Ô¶²»¹»µÄ£¬ÐèÒªÌí¼ÓteechartÆäËûÏà¹ØµÄÀ࣬Ìí¼Ó·½·¨ÔÚ֮ǰÒѾ½²¹ý£¬²»ÔÙÖØ¸´¡£ 1.2. ÒýÈë±ØÒªµÄÍ·Îļþ