xor_learndlg.cpp

神经网络中的多层感知器的BP(反向传播)学习算法

// xor_learnDlg.cpp : implementation file
//

#include "stdafx.h"
#include "xor_learn.h"
#include "xor_learnDlg.h"


#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

/////////////////////////////////////////////////////////////////////////////
// CXorLearnDlg dialog

CXorLearnDlg::CXorLearnDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CXorLearnDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CXorLearnDlg)
	m_dbLearnRate = 0.1;
	m_dbMomentum = 0.3;
	m_dbActiveLvl = 2.0;
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32

	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CXorLearnDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CXorLearnDlg)
	DDX_Control(pDX, IDC_NEURON_VIEW, m_neuronView);
	DDX_Text(pDX, IDC_EDIT_LEARN_RATE, m_dbLearnRate);
	DDX_Text(pDX, IDC_EDIT_MOMENTUM, m_dbMomentum);
	DDX_Text(pDX, IDC_EDIT_ACTIVELVL, m_dbActiveLvl);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CXorLearnDlg, CDialog)
	//{{AFX_MSG_MAP(CXorLearnDlg)
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_BUTTON_RESET, OnButtonReset)
	ON_BN_CLICKED(IDC_BUTTON_ADJUST, OnButtonAdjust)
	ON_BN_CLICKED(IDC_BUTTON_STOP, OnButtonStop)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CXorLearnDlg message handlers

BOOL CXorLearnDlg::OnInitDialog()
{
	CDialog::OnInitDialog();

	// Set the icon for this dialog.  The framework does this automatically
	//  when the application's main window is not a dialog
	SetIcon(m_hIcon, TRUE);			// Set big icon
	SetIcon(m_hIcon, FALSE);		// Set small icon
	
	// TODO: Add extra initialization here
    m_ucState = ST_PREP;
    
    m_neuronView.SetWeightsListener(this);
    m_neuronView.SetMouseListener(NULL);
    OnButtonReset();

	return TRUE;  // return TRUE  unless you set the focus to a control
}

// If you add a minimize button to your dialog, you will need the code below
//  to draw the icon.  For MFC applications using the document/view model,
//  this is automatically done for you by the framework.

void CXorLearnDlg::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
	{
        CDialog::OnPaint();  
	}
}

// The system calls this to obtain the cursor to display while the user drags
//  the minimized window.
HCURSOR CXorLearnDlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}

void CXorLearnDlg::OnWeightsNotify(double *pdbWeights, int num)
{
    CString str;
    str.Format("%7.5f", pdbWeights[0]);
    ((CStatic *)GetDlgItem(IDC_STATIC_B1))->SetWindowText(str);
    str.Format("%7.5f", pdbWeights[1]);
    ((CStatic *)GetDlgItem(IDC_STATIC_W1))->SetWindowText(str);    
    str.Format("%7.5f",pdbWeights[2]);
    ((CStatic *)GetDlgItem(IDC_STATIC_W2))->SetWindowText(str); 
    str.Format("%7.5f", pdbWeights[3]);
    ((CStatic *)GetDlgItem(IDC_STATIC_B2))->SetWindowText(str);
    str.Format("%7.5f", pdbWeights[4]);
    ((CStatic *)GetDlgItem(IDC_STATIC_W3))->SetWindowText(str);    
    str.Format("%7.5f",pdbWeights[5]);
    ((CStatic *)GetDlgItem(IDC_STATIC_W4))->SetWindowText(str);    
    str.Format("%7.5f", pdbWeights[6]);
    ((CStatic *)GetDlgItem(IDC_STATIC_B3))->SetWindowText(str);
    str.Format("%7.5f", pdbWeights[7]);
    ((CStatic *)GetDlgItem(IDC_STATIC_W5))->SetWindowText(str);    
    str.Format("%7.5f",pdbWeights[8]);
    ((CStatic *)GetDlgItem(IDC_STATIC_W6))->SetWindowText(str);    
}

void CXorLearnDlg::OnButtonReset() 
{
	// TODO: Add your control notification handler code here
    OnButtonStop();
    UpdateData();
    m_ucState = ST_PREP;
	m_neuronView.ResetNeuron(m_dbLearnRate, m_dbActiveLvl, m_dbMomentum);
    m_neuronView.Redraw();
}

void CXorLearnDlg::LButtonDown(CPointf *pointf)
{

}

void CXorLearnDlg::OnButtonAdjust() 
{
	// TODO: Add your control notification handler code here
    if (m_ucState == ST_PREP)
    {
        m_ucState = ST_ADJUSTING;
        m_neuronView.BeginAdjust();
    }	
}

void CXorLearnDlg::OnButtonStop() 
{
	// TODO: Add your control notification handler code here
	if (m_ucState == ST_ADJUSTING)
    {
        m_ucState = ST_PREP;
        m_neuronView.EndAdjust();
    }
}