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详细说明： 数字识别之神经网络法(来自网络) /* ============================================= *\ * File: OnrDlg.cpp * * Description: 主对话框头文件 * * 包括所有的函数 * \* ============================================= */ #include "stdafx.h" #in clude "Onr.h" #include "OnrDlg.h" #include #include #include #ifdef _DEBUG #define new DEBUG_NEW #undef THIS_FILE static char THIS_FILE[] = __FILE__; #endif ///////////////////////////////////////////////////////////////////////////// // CAboutDlg dialog used for App About class CAboutDlg : public CDialog { public: CAboutDlg(); // Dialog Data //{{AFX_DATA(CAboutDlg) enum { IDD = IDD_ABOUTBOX }; //}}AFX_DATA // ClassWizard generated virtual function overrides //{{AFX_VIRTUAL(CAboutDlg) protected: virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support //}}AFX_VIRTUAL // Implementation protected: //{{AFX_MSG(CAboutDlg) virtual BOOL OnInitDialog(); //}}AFX_MSG DECLARE_MESSAGE_MAP() }; CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD) { //{{AFX_DATA_INIT(CAboutDlg) //}}AFX_DATA_INIT } void CAboutDlg::DoDataExchange(CDataExchange* pDX) { CDialog::DoDataExchange(pDX); //{{AFX_DATA_MAP(CAboutDlg) //}}AFX_DATA_MAP } BEGIN_MESSAGE_MAP(CAboutDlg, CDialog) //{{AFX_MSG_MAP(CAboutDlg) //}}AFX_MSG_MAP END_MESSAGE_MAP() BOOL CAboutDlg::OnInitDialog() { CDialog::OnInitDialog(); return TRUE; } ///////////////////////////////////////////////////////////////////////////// // COnrDlg dialog COnrDlg::COnrDlg(CWnd* pParent) : CDialog(COnrDlg::IDD, pParent) { //{{AFX_DATA_INIT(COnrDlg) //}}AFX_DATA_INIT m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME); } void COnrDlg::DoDataExchange(CDataExchange* pDX) { CDialog::DoDataExchange(pDX); //{{AFX_DATA_MAP(COnrDlg) DDX_Control(pDX, IDC_TRAINSPIN, m_Trainspin); DDX_Control(pDX, IDC_TESTSPIN, m_Testspin); DDX_Control(pDX, IDC_TRAININFO, m_TrainInfo); DDX_Control(pDX, IDC_INFOBOX, m_cInfoBox); DDX_Control(pDX, IDC_TESTWINDOW, m_TestWindow); //}}AFX_DATA_MAP } BEGIN_MESSAGE_MAP(COnrDlg, CDialog) //{{AFX_MSG_MAP(COnrDlg) ON_WM_SYSCOMMAND() ON_WM_PAINT() ON_WM_QUERYDRAGICON() ON_BN_CLICKED(IDC_TRAIN, OnTrain) ON_BN_CLICKED(IDC_CLASSIFY, OnClassify) ON_NOTIFY(UDN_DELTAPOS, IDC_TRAINSPIN, OnDeltaposTrainspin) ON_NOTIFY(UDN_DELTAPOS, IDC_TESTSPIN, OnDeltaposTestspin) //}}AFX_MSG_MAP END_MESSAGE_MAP() /////////////////////////////////////////////////////////////////////////////// // 初始化对话框 BOOL COnrDlg::OnInitDialog() { CDialog::OnInitDialog(); // IDM_ABOUTBOX must be in the system command range. ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX); ASSERT(IDM_ABOUTBOX < 0xF000); CMenu* pSysMenu = GetSystemMenu(FALSE); if (pSysMenu != NULL) { CString strAboutMenu; strAboutMenu.LoadString(IDS_ABOUTBOX); if (!strAboutMenu.IsEmpty()) { pSysMenu->AppendMenu(MF_SEPARATOR); pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu); } } SetIcon(m_hIcon, TRUE); // Set big icon SetIcon((HICON)(LoadImage(AfxGetResourceHandle(), MAKEINTRESOURCE(IDR_MAINFRAME), IMAGE_ICON, 16, 16, 0)), FALSE); // 设置滚动条的范围 m_Testspin.SetRange(0,NN_NUMBERS-1); m_Trainspin.SetRange(0,NN_NUMBERS-1); m_Testspin.SetPos(0); m_Trainspin.SetPos(0); // 打开文件 ifstream data("learn.dat", ios::nocreate); ifstream test("test.dat", ios::nocreate); // 检查文件的有效性 if (!test || !data) { MessageBox("No learning or test data present.", "Cannot run...", MB_OK | MB_ICONERROR); } // 读文件 for(int i=0;i> onoff; m_bTestData[i][j] = onoff; data >> onoff; m_bNumbers[i][j] = onoff; } } // 设置初始要画的数字指针 m_ipDrawNum = &m_bNumbers[0][0]; return true; } void COnrDlg::OnSysCommand(UINT nID, LPARAM lParam) { if ((nID & 0xFFF0) == IDM_ABOUTBOX) { CAboutDlg dlgAbout; dlgAbout.DoModal(); } else { CDialog::OnSysCommand(nID, lParam); } } void COnrDlg::OnPaint() { if (IsIconic()) { CPaintDC dc(this); // device context for painting SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0); // Center icon in client rectangle int cxIcon = GetSystemMetrics(SM_CXICON); int cyIcon = GetSystemMetrics(SM_CYICON); CRect rect; GetClientRect(&rect); int x = (rect.Width() - cxIcon + 1) / 2; int y = (rect.Height() - cyIcon + 1) / 2; // Draw the icon dc.DrawIcon(x, y, m_hIcon); } else { CPaintDC dc(this); CDialog::OnPaint(); // 这种方法画矩形可能有点迂回，不过的确可以工作 CRect rect; m_TestWindow.GetClientRect(&rect); m_TestWindow.ClientToScreen(&rect); ScreenToClient(&rect); dc.FrameRect(&rect, &CBrush(RGB(0,0,0))); rect.DeflateRect(1,1); dc.FillSolidRect(rect, RGB(255,255,255)); // 画数字 DrawNumber(&dc, m_ipDrawNum, &rect); } } HCURSOR COnrDlg::OnQueryDragIcon() { return (HCURSOR) m_hIcon; } /////////////////////////////////////////////////////////// // 由于某些原因，如果采用"Maxinum Speed"优化将引起程序运行的 // 失败，所以先关掉优化，在该段代码结束后再打开优化功能 /////////////////////////////////////////////////////////// #pragma optimize( "", off ) ////////////////////////////////////////////////////////////////////////// // 训练数据 void COnrDlg::OnTrain() { srand((unsigned)time(NULL)); // 设置随机数 m_cInfoBox.ResetContent(); // 所有权值0初始化 memset(&m_fWeights,0,sizeof(m_fWeights)); // 产生一些带有随机噪声的训练数据 m_cInfoBox.InsertString(-1, "Generating noisy data..."); int num = 0; for (int i=0;iEnableWindow(true); } /////////////////////////////////////////////////////////////////////////// // 画数字 void COnrDlg::DrawNumber(CDC *dc, int *cell, CRect *rect) { // 下面的计算主要是使得数字画在矩形筐的正中央 CPoint tl; tl.x = rect->Width()/2 - (NN_RESX*10)/2; tl.y = rect->Height()/2 - (NN_RESY*10)/2; tl.Offset(rect->TopLeft()); int ix = tl.x; // 产生一些围绕数字的红色虚线 CPen pen; if (pen.CreatePen(PS_DOT, 1, RGB(127,0,0))) { CPen *pOldPen = dc->SelectObject(&pen); CPoint pt1 = rect->TopLeft(); CPoint pt2 = rect->BottomRight(); dc->MoveTo(tl.x-5, tl.y-2); dc->LineTo(tl.x+NN_RESX*10+5, tl.y-2); dc->MoveTo(tl.x-5, tl.y+10*NN_RESY+1); dc->LineTo(tl.x+NN_RESX*10+5, tl.y+10*NN_RESY+1); dc->MoveTo(tl.x-2, tl.y-7); dc->LineTo(tl.x-2, tl.y+NN_RESY*10+7); dc->MoveTo(tl.x+NN_RESX*10+2, tl.y-7); dc->LineTo(tl.x+NN_RESX*10+2, tl.y+NN_RESY*10+7); dc->SelectObject(pOldPen); } // 显示一些文本 CRect format(tl.x+1, tl.y+NN_RESY*10+2, tl.x+NN_RESX*10-1, tl.y+NN_RESY*10+18); if (m_bDisplayString) { CFont fnt; if (fnt.CreatePointFont(80,"Arial")) { CFont* pOldFont = dc->SelectObject(&fnt); dc->SetTextColor(RGB(0,0,127)); dc->DrawText(m_Str,format,DT_CENTER); dc->SelectObject(pOldFont); } } // 画数字 for(int i=0;iFillSolidRect(tl.x,tl.y,10,10,RGB(0,0,0)); } tl.x += 10; if (tl.x == ix + 10*NN_RESX) { tl.x = ix; tl.y += 10; } cell++; } } ////////////////////////////////////////////////////////////////////////////////// // 识别 void COnrDlg::OnClassify() { int pos = (BYTE)m_Testspin.GetPos(); m_ipDrawNum = &m_bTestData[pos][0]; InvalidateNumber(); float d[NN_NUMBERS]; for(int j=0;j d[bestind]) bestind = j; // 计算画文本的区域 CRect size; m_TestWindow.GetClientRect(&size); int x = size.Width()/2 - (NN_RESX*10)/2; int y = size.Height()/2 - (NN_RESY*10)/2; CRect format(x,size.Height()-y+1, size.Width()-x, size.Height()-5); m_bDisplayString = true; GetText(m_Str, bestind+1); } ///////////////////////////////////////////////////////////////////////////// // 运行网络 // 参数：training－为真时表示网络出于训练状态 void COnrDlg::RunNet(bool training) { // 检测带有噪声的数据 float d[NN_NUMBERS]; int cycles = 0;//初始化循环次数为0 bool correct; do { correct = true; for(int i=0;i d[bestind]) bestind = j; int realval = (int)(i/NN_NOISY); if (bestind == realval) continue; if (training) { CString result; result.Format("Guessed %d instead of %d.",bestind, realval); m_TrainInfo.SetWindowText(result); correct = false; for(j=0;j= NN_MAXITER) { MessageBox("Training has timed-out.", "Error in Training", MB_OK | MB_ICONINFORMATION); return; } } //恢复系统优化 #pragma optimize( "", on ) //////////////////////////////////////////////////////////////////////// // 处理训练数据的滚动条 void COnrDlg::OnDeltaposTrainspin(NMHDR* pNMHDR, LRESULT* pResult) { NM_UPDOWN* pNMUpDown = (NM_UPDOWN*)pNMHDR; int iPos = pNMUpDown->iPos; int iDelta = pNMUpDown->iDelta; m_bDisplayString = false; if ((iPos == 0 && iDelta == -1) || (iPos == NN_NUMBERS-1 && iDelta == 1)) { if (iDelta == -1) { m_ipDrawNum = &m_bNumbers[0][0]; InvalidateNumber(); } else { m_ipDrawNum = &m_bNumbers[NN_NUMBERS-1][0]; InvalidateNumber(); } } else { m_ipDrawNum = &m_bNumbers[iPos+iDelta][0]; InvalidateNumber(); } *pResult = 0; } ////////////////////////////////////////////////////////////////////////////////// // 处理测试数据的滚动条 void COnrDlg::OnDeltaposTestspin(NMHDR* pNMHDR, LRESULT* pResult) { NM_UPDOWN* pNMUpDown = (NM_UPDOWN*)pNMHDR; int iPos = pNMUpDown->iPos; int iDelta = pNMUpDown->iDelta; m_bDisplayString = false; if ((iPos == 0 && iDelta == -1) || (iPos == NN_NUMBERS-1 && iDelta == 1)) { if (iDelta == -1) { m_ipDrawNum = &m_bTestData[0][0]; InvalidateNumber(); } else { m_ipDrawNum = &m_bTestData[NN_NUMBERS-1][0]; InvalidateNumber(); } } else { m_ipDrawNum = &m_bTestData[iPos+iDelta][0]; InvalidateNumber(); } *pResult = 0; } ////////////////////////////////////////////////////////////////////////// // 得到数字相对应的文本 void COnrDlg::GetText(CString &str, int num) { switch (num) { case 1: str = "Result:1"; break; case 2: str = "Result:2"; break; case 3: str = "Result:3"; break; case 4: str = "Result:4"; break; case 5: str = "Result:5"; break; case 6: str = "Result:6"; break; case 7: str = "Result:7"; break; case 8: str = "Result:8"; break; case 9: str = "Result:9"; break; default: str = "Undetermined"; } } /////////////////////////////////////////////////////////////////////////////// // 强制重画 void COnrDlg::InvalidateNumber() { CRect rect; m_TestWindow.GetClientRect(&rect); m_TestWindow.ClientToScreen(&rect); ScreenToClient(&rect); InvalidateRect(rect, false); } ...展开收缩
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