绘制波形.docx
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绘制波形.docx
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绘制波形
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¾¹ý¶Ô±È£¬±¾È˾õµÃ²ÉÓþ²Ì¬Îı¾¿Ø¼þ£¨CStatic£©×÷ΪµÄ²¨ÐÎÇúÏ߿ؼþµÄÏÔʾÔØÌå½ÏΪ·½±ã¡¢¼òµ¥¡£¹ÊÖ»ÐèÒª¼Ì³ÐCStatic£¬ÅÉÉú³öÒ»¸ö²¨ÐÎÇúÏßÏÔʾ¿Ø¼þ¼´¿É£¨Ôݶ¨ÎªCGraghCtrl£©¡£Õâ¸öÀïÃæÉæ¼°Á½¸öÄѵ㣬һ¸öÊǾ²Ì¬Îı¾µÄͼÐÎ×Ի棬һ¸öÊÇ×ø±êµÄת»¯¡£
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CStatic¿Ø¼þ¿Í»§ÇøµÄ×Ô»æÊÇÔÚWM_PAINTÀïÃæʵÏֵġ£ÓÉÓÚ»æÖÆͼÐοÉÄÜ»áÕ¼Óý϶àµÄʱ¼ä£¬Ö±½ÓÔڿؼþ±íÃæ»æÖÆ£¬Í¼ÐεĹý¶É¾Í»áºÜ²»×ÔÈ»£¬Ó°Ïì»æͼÖÊÁ¿£¬¹ÊÔÚ»æÖÆͼÐεÄʱºò£¬Ó¦¸Ã¾¡Á¿²ÉÓÃË«»º³å»úÖÆ¡£Ë«»º³å»úÖƾͺÃÈçÄãÒªÔÚÄãµÄǽ±ÚÉÏ×ö»£¬ÓÉÓÚÖ±½ÓÔÚǽ±ÚÉÏ×ö»£¬¿ÉÄÜ»á¶ÔÄãµÄǽ±ÚÔì³ÉΣº¦£¬¶øÕâÖÖΣº¦¼¸ºõ¶¼ÊDz»¿ÉÄæµÄ£¬ÓÚÊǶÔÓÚ»¹¤À´Ëµ£¬ËûÃdz£³£»áÑ¡ÔñÒ»¸öÓëÔÏÈǽ±Ú¼æÈݵIJÄÖÊ£¬²¢ÔÚÄǸö²ÄÖÊÉÏ×÷Í껺ó£¬Ö±½Ó½«Ëû¸½µ½Ç½±ÚÉϾͿÉÒÔÁË£¬ÖÁÓÚ×÷»µÄ¹ý³Ì£¬ÎÒÃÇÊDz»»á¹ØÐĵġ£¿Ø¼þµÄË«»º³å»æÖÆ´úÂëÈçÏ£º
1./////////////////////////////////////////////////////////////////////////////
2.//ÏûÏ¢ÏìÓ¦º¯Êý
3.voidCGraghCtrl:
:
OnPaint()
4.{
5.CPaintDCdc(this);
6.CDCMemDC;//Ê×Ïȶ¨ÒåÒ»¸öÏÔʾÉ豸¶ÔÏó
7.CBitmapMemBitmap;//¶¨ÒåÒ»¸öλͼ¶ÔÏó
8.
9.MemDC.CreateCompatibleDC(&dc);//Ëæºó½¨Á¢ÓëÆÁÄ»ÏÔʾ¼æÈݵÄÄÚ´æÏÔʾÉ豸
10.MemBitmap.CreateCompatibleBitmap(&dc,m_rcClient.Width(),m_rcClient.Height());
11.CBitmap*pOldBit=MemDC.SelectObject(&MemBitmap);
12.DrawMemDC(&MemDC);//Õâ¸öº¯ÊýÍê³ÉͼÐεĻæÖÆ
13.dc.BitBlt(0,0,m_rcClient.Width(),m_rcClient.Height(),&MemDC,0,0,SRCCOPY);//½«ÄÚ´æÖеÄͼ¿½±´µ½ÆÁÄ»ÉϽøÐÐÏÔʾ
14.MemDC.SelectObject(pOldBit);
15.MemBitmap.DeleteObject();
16.MemDC.DeleteDC();
17.}
ÆäÖУ¬DrawMemDC(CDC*pDC)ʵÏÖÁ˶ÔͼÐεĻæÖÆ¡£¶ÔÓÚÎÒÃǵIJ¨ÐÎÇúÏßÀ´Ëµ£¬»æÖƵÄÔªËØ×ÜÌå°üº¬ÒÔϼ¸ÖÖ£º
1¡¢±³¾°É«¡£voidDrawBgcolor()£»
2¡¢ÇúÏß±êÌâÎÄ×Ö£¬ÓÃÀ´ÃèÊöÇúÏßµÄһЩ»ù±¾ÐÅÏ¢¡£ÈçȪÖݹÙÇűä1#Ö÷±äÓÍÉ«Æ×ÇúÏß×ßÊÆͼ¡£voidDrawTitle(CDC*pDC)£»
3¡¢×ø±êϵ£¬ÆäÖÐԵ㡢Õý·½ÏòºÍµ¥Î»³¤¶È¹¹³ÉÆäÈýÒªËØ£¬Õâ¸öÔÚ»æͼÀïÃæÊÇÏ൱¹Ø¼üµÄ¡£voidDrawCoordinate(CDC*pDC)£»
4¡¢²¨ÐÎÇúÏߵĻæÖÆ¡£voidDrawGragh(CDC*pDC)£»
5¡¢ÇúÏßµÄÇл»¿ØÖƱêÇ©¡£ÈçȪÖݹÙÇűä1#Ö÷±äÓÍÉ«Æ×ÇúÏߣ¬ÔÚÕâ¸ö×ßÊÆͼÉÏÓ¦¿ÉÒÔͬʱ²é¿´ËùÓÐÓÍÉ«Æ×µÄÇúÏßÇé¿ö(H2¡¢CO¡¢C02¡¢CH4¡¢C2H4¡¢C2H6¡¢C2H2),ͨ¹ýÇл»±êÇ©£¬¿ÉÒÔÑ¡Ôñ×Ô¼ºÐèÒª²é¿´µÄ¼¸×éÆøÌåµÄÇúÏßÇé¿ö¡£DrawSwitch(CDC*pDC)£»
DrawMemDCµÄʵÏÖ´úÂëÈçÏ£º
1./////////////////////////////////////////////////////////////////////////////
2.//»æÖƸ÷ÖÖͼÐÎÔªËØ
3.voidCGraghCtrl:
:
DrawMemDC(CDC*pDC)
4.{
5.DrawBgcolor(pDC);
6.DrawTitle(pDC);
7.DrawCoordinate(pDC);
8.DrawGragh(pDC);
9.DrawSwitch(pDC);
10.}
11.
12.//»æÖƱ³¾°
13.voidCGraghCtrl:
:
DrawBgcolor(CDC*pDC)
14.{
15.intnBkMode=pDC->SetBkMode(TRANSPARENT);
16.pDC->FillSolidRect(m_rcClient,m_bkColor);
17.pDC->SetBkMode(nBkMode);
18.}
19.
20.//»æÖƱêÌâÀ¸
21.voidCGraghCtrl:
:
DrawTitle(CDC*pDC)
22.{
23.intnBkMode=pDC->SetBkMode(TRANSPARENT);
24.CFont*pOldFont=pDC->SelectObject(&M_Fonttitle);
25.COLORREFoldClr=pDC->SetTextColor(0X0000FF);
26.CRectrcTitle(m_rcClient.left,m_rcClient.top,m_rcClient.right,30);
27.pDC->DrawText(m_layout.strTitle,24,rcTitle,DT_CENTER);
28.pDC->SetTextColor(oldClr);
29.pDC->SelectObject(pOldFont);
30.pDC->SetBkMode(nBkMode);
31.}
32.
33.//»æÖÆ×ø±êϵ
34.voidCGraghCtrl:
:
DrawCoordinate(CDC*pDC)
35.{
36.intnBkMode=pDC->SetBkMode(TRANSPARENT);
37.
38.CPen*pOldPen=pDC->SelectObject(&pen2);
39.CPenpen(PS_SOLID,1,m_bkColor);
40.if(ColyToScreen(0)
41.{
42.pDC->SelectObject(&pen);
43.}
44.else
45.{
46.pDC->SelectObject(&pen2);
47.}
48.pDC->MoveTo(m_layout.page.nLeftMargin,ColyToScreen(0));
49.pDC->LineTo(m_rcClient.right-m_layout.page.nRightMargin,ColyToScreen(0));
50.
51.pDC->MoveTo(m_rcClient.right-m_layout.page.nRightMargin,ColyToScreen(0));
52.pDC->LineTo(m_rcClient.right-m_layout.page.nRightMargin-m_layout.coordin.arrow.nArrowHeight,ColyToScreen(0)-m_layout.coordin.arrow.nArrowWidth);
53.pDC->MoveTo(m_rcClient.right-m_layout.page.nRightMargin,ColyToScreen(0));
54.pDC->LineTo(m_rcClient.right-m_layout.page.nRightMargin-m_layout.coordin.arrow.nArrowHeight,ColyToScreen(0)+m_layout.coordin.arrow.nArrowWidth);
55.
56.if(ColxToScreen(0)>m_rcClient.right-m_layout.page.nRightMargin||ColxToScreen(0) 57.{ 58.pDC->SelectObject(&pen); 59.} 60.else 61.{ 62.pDC->SelectObject(&pen2); 63.} 64.pDC->MoveTo(ColxToScreen(0),m_rcClient.bottom-m_layout.page.nBottomMargin); 65.pDC->LineTo(ColxToScreen(0),m_layout.page.nTopMargin); 66. 67.pDC->MoveTo(ColxToScreen(0),m_layout.page.nTopMargin); 68.pDC->LineTo(ColxToScreen(0)-m_layout.coordin.arrow.nArrowWidth,m_layout.page.nTopMargin+m_layout.coordin.arrow.nArrowHeight); 69.pDC->MoveTo(ColxToScreen(0),m_layout.page.nTopMargin); 70.pDC->LineTo(ColxToScreen(0)+m_layout.coordin.arrow.nArrowWidth,m_layout.page.nTopMargin+m_layout.coordin.arrow.nArrowHeight); 71. 72.//»×ø±êµÄ¿Ì¶È,ÓÃÐéÏß»,ºá×ø±ê,×Ý×ø±ê 73.pOldPen=pDC->SelectObject(&penDot); 74.CStringstrXdel; 75.CStringstrYdel; 76.intnxSrv=m_layout.coordin.xCol.nxSrv; 77.intnxEnd=ScreenxToCol(m_rcClient.right-m_layout.page.nRightMargin); 78.for(inti=nxSrv;i 79.{ 80.if(i%30==0) 81.{ 82.pDC->MoveTo(ColxToScreen(i),m_rcClient.bottom-m_layout.page.nBottomMargin); 83.pDC->LineTo(ColxToScreen(i),m_layout.page.nTopMargin); 84.pDC->SetTextColor(RGB(0,98,255)); 85.strXdel.Format("%d",i); 86.pDC->TextOut(ColxToScreen(i),m_rcClient.bottom-m_layout.page.nBottomMargin+5,strXdel); 87.} 88.} 89. 90.intnySrv=m_layout.coordin.yCol.nySrv; 91.intnyEnd=ScreenyToCol(m_layout.page.nTopMargin); 92.for(inti=nySrv;i 93.{ 94.if(i%30==0) 95.{ 96.pDC->MoveTo(m_layout.page.nLeftMargin,ColyToScreen(i)); 97.pDC->LineTo(m_rcClient.right-m_layout.page.nRightMargin,ColyToScreen(i)); 98.pDC->SetTextColor(RGB(0,98,255)); 99.strYdel.Format("%d",i); 100.pDC->TextOut(m_layout.page.nLeftMargin-30,ColyToScreen(i),strYdel); 101.} 102.} 103. 104.pDC->SetBkMode(nBkMode); 105.} 106. 107.//»æÖÆÇúÏß 108.voidCGraghCtrl: : DrawGragh(CDC*pDC) 109.{ 110.intnCount=m_graghArray.GetSize(); 111.for(inti=0;i 112.{ 113.GraghStruct*pGs=(GraghStruct*)m_graghArray.GetAt(i); 114.DrawGragh(pDC,pGs); 115.} 116.} DrawGraghʵÏÖÁ˶ÔËùÓвÎÊýÇúÏߵĻæÖÆ£¬ËüÓÖµ÷ÓÃÁËDrawGragh(pDC,pGs);À´»æÖÆijµ¥·ùÇúÏߣ¬²¢Í¨¹ýÁ´ ±íÀ´ÊµÏÖ¶ÔÕâЩÇúÏߵĹÜÀíºÍά»¤£¬µ±È»¶ÔÓÚÿÖÖÇúÏ߶¨ÒåÁËͳһµÄÇúÏ߽ṹ£¬¶¨ÒåÈçÏ£º 1.//ÇúÏ߽ṹ 2.structGraghStruct 3.{ 4.CStringstrTip;//ÇúÏßµÄÃèÊö 5.COLORREFclrGragh;//ÇúÏß¡¢¿ØÖƱêÇ©µÄÑÕÉ« 6.CRectrcTip;//¿ØÖƱêÇ©µÄλÖà 7.BOOLbFlag;//ÇúÏßµÄÏÔʾ״̬ 8.floatfData[50000];//ÇúÏßµÄÊý¾Ý£¬Õâ±ßÔÝʱ֧³Ö50000¸öÊý¾Ýµã¡£ 9.intnDataCount;//ÇúÏßµÄʵ¼ÊÊý¾Ýµã 10.}; »æÖÆÇúÏßµÄʱºò»¹Éæ¼°µ½Ò»¸ö¹Ø¼üµÄÎÊÌ⣬Õâ¸öÒ²ÊÇ»æÖÆÇúÏßÖеÄÄѵãÎÊÌ⣬¼´É豸×ø±êÓëÂß¼×ø±êÖ®¼äµÄת»»×ø±êת»»¡£ É豸×ø±ê£ºÒ»¸öʵ¼ÊÎïÀíÆÁÄ»ÊÇÓÉÏñËØ×é³ÉµÄÈçƽ³£Ëù˵µÄ640¡Á480£¬1024¡Á768Ö¸µÄ¾ÍÊÇÏÔʾÆ÷µÄʵ¼Ê¿í¶ÈºÍ¸ß¶ÈµÄÏñËØÊýÄ¿¡£ C++»æͼÓкü¸ÖÖģʽ£¬Ä¬ÈÏÇé¿öÏÂÊÇMM_TEXT£¬ÔÚ´ËģʽÏ»æͼ¾ÍÊÇÉ豸×ø±ê£¬ÒòΪËüµÄµ¥Î»ÊÇÏñËØ£¬ÔÚÕâ¸öģʽÏ£¬CDCµÄ»æͼ¶¼ÊÇÒÔÏóËØΪµ¥Î»¡£ Âß¼×ø±ê£º±¾ÏµÍ³Êý¾ÝËù²ÉÓõÄ×ø±ê¡£¶ø»æÖƵÄʱºò¶¼ÊÇÒÔÏóËØΪµ¥Î»£¬ÐèÒª½øÐÐÁ½ÕßµÄ×ø±êת»»£¬×ª»»º¯ÊýÈçÏ£º 1.//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// 2.////////////////////////////////////////////////////////ÒÔÏÂΪ×ø±êת»¯º¯Êý///////////////////////////////////////////////////// 3.//ʵ¼Ê×ø±êת»¯ÎªÆÁÄ»×ø±ê 4.intCGraghCtrl: : ColxToScreen(floatfColx) 5.{ 6.return(int)m_layout.coordin.xCol.fxDel*(fColx-m_layout.coordin.xCol.nxSrv)+m_layout.page.nLeftMargin; 7.} 8. 9.intCGraghCtrl: : ColyToScreen(floatfColy) 10.{ 11.return(int)m_rcClient.bottom-m_layout.page.nBottomMargin-m_layout.coordin.yCol.fyDel*(fColy-m_layout.coordin.yCol.nySrv); 12.} 13. 14.//ÆÁÄ»×ø±êת»»ÎªÊµ¼Ê×ø±ê 15.floatCGraghCtrl: : ScreenxToCol(intnSrcx) 16.{ 17.return(nSrcx-m_layout.page.nLeftMargin)/(m_layout.coordin.yCol.fyDel*1.0)+m_layout.coordin.xCol.nxSrv; 18.} 19. 20.floatCGraghCtrl: : ScreenyToCol(intnSrcy) 21.{ 22.return(m_rcClient.bottom-m_layout.page.nBottomMargin-nSrcy)/(m_layout.coordin.yCol.fyDel*1.0)+m_layout.coordin.yCol.nySrv; 23.} 24.///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// ÓÐÁËÉÏÊö»ù´¡£¬¾Í»ù±¾ÉÏ¿ÉÒÔʵÏÖÇúÏßµÄ×Ի棬ÇáËÉ°ÚÍÑÁËMSCHARTµÄÊø¸¿¡£ÇúÏß³ýÁËÉÏÃæËùÃèÊöµÄ»ù±¾¹¦ÄÜÍ⣬ÇúÏß»¹Ó¦¸ÃÖ§³Ö·Å´ó¡¢ËõС¡¢Í϶¯µÈ¹¦ÄÜ¡£ÕâЩ¹¦ÄÜÎÞ·ÇÊǸıä±ÈÀýÒò×ÓºÍ×ø±êÔµãÀ´ÊµÏÖ¡£ 1.//ʵÏÖÇúÏßµÄÍ϶¯ 2.voidCGraghCtrl: : OnMouseMove(UINTnFlags,CPointpoint) 3.{ 4.m_rcGragh.left=m_layout.page.nLeftMargin; 5.m_rcGragh.right=m_rcClient.right-m_layout.page.nRightMargin; 6.m_rcGragh.top=m_layout.page.nTopMargin; 7.m_rcGragh.bottom=m_rcClient.bottom-m_layout.page.nBottomMargin; 8.if(m_rcGragh.PtInRect(point)) 9.{ 10.if(m_bDown) 11.{ 12.m_layout.coor
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