IFS.rar_双击Debug作用

// ifs01Dlg.cpp : implementation file // #include "stdafx.h" #include "ifs01.h" #include "ifs01Dlg.h" #ifdef _DEBUG #define new DEBUG_NEW #undef THIS_FILE static char THIS_FILE[] = __FILE__; #endif ///////////////////////////////////////////////////////////////////////////// // CIfs01Dlg dialog CIfs01Dlg::CIfs01Dlg(CWnd* pParent /*=NULL*/) : CDialog(CIfs01Dlg::IDD, pParent) { //{{AFX_DATA_INIT(CIfs01Dlg) // NOTE: the ClassWizard will add member initialization here //}}AFX_DATA_INIT m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME); } void CIfs01Dlg::DoDataExchange(CDataExchange* pDX) { CDialog::DoDataExchange(pDX); //{{AFX_DATA_MAP(CIfs01Dlg) // NOTE: the ClassWizard will add DDX and DDV calls here //}}AFX_DATA_MAP } BEGIN_MESSAGE_MAP(CIfs01Dlg, CDialog) //{{AFX_MSG_MAP(CIfs01Dlg) ON_WM_PAINT() ON_WM_QUERYDRAGICON() //}}AFX_MSG_MAP END_MESSAGE_MAP() ///////////////////////////////////////////////////////////////////////////// // CIfs01Dlg message handlers BOOL CIfs01Dlg::OnInitDialog() { CDialog::OnInitDialog(); SetIcon(m_hIcon, TRUE); // Set big icon SetIcon(m_hIcon, FALSE); // Set small icon // TODO: Add extra initialization here 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 CIfs01Dlg::OnPaint() { AfxGetMainWnd()->SetWindowText("IFS系统（分形频道：fractal.cn）2004"); 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(); } } HCURSOR CIfs01Dlg::OnQueryDragIcon() { return (HCURSOR) m_hIcon; } /** 绘制图形 */ void CIfs01Dlg::OnOK() { CDC * pDC = GetDC(); ifs(pDC); ReleaseDC(pDC); } void CIfs01Dlg::ifs(CDC *pDC) { float x=0; // '仿射变换中的自变量 float y=0; float newx, newy; //'仿射变换产生的新点 float a, b, c, d, e, f; //'仿射变幻中的系数 long n=100000; // '迭代次数 float R; //'随机变量 float m[7][7]={0}; // '存放IFS码 //'IFS码赋值 m[0][0] = 0.5; m[0][1] = 0; m[0][2] = 0; m[0][3] = 0.5; m[0][4] = 0; m[0][5] = 0; m[0][6] = 0.333; m[1][0] = 0.5; m[1][1] = 0; m[1][2] = 0; m[1][3] = 0.5; m[1][4] = 0.5; m[1][5] = 0; m[1][6] = 0.333; m[2][0] = 0.5; m[2][1] = 0; m[2][2] = 0; m[2][3] = 0.5; m[2][4] = 0.25; m[2][5] = 0.5; m[2][6] = 0.334; //'循环迭代，在不同的概率空间下，赋不同的IFS码值 while (n > 0) { R = (float)rand()/RAND_MAX; if (R <= m[0][6]) { a = m[0][0]; b = m[0][1]; c = m[0][2]; d = m[0][3]; e = m[0][4]; f = m[0][5]; } else if (R <= m[0][6] + m[1][6]) { a = m[1][0]; b = m[1][1]; c = m[1][2]; d = m[1][3]; e = m[1][4]; f = m[1][5]; } else if (R <= m[0][6] + m[1][6] + m[2][6]) { a = m[2][0]; b = m[2][1]; c = m[2][2]; d = m[2][3]; e = m[2][4]; f = m[2][5]; } else { a = m[3][0]; b = m[3][1]; c = m[3][2]; d = m[3][3]; e = m[3][4]; f = m[3][5]; } newx = (a * x) + (b * y) + e; newy = (c * x) + (d * y) + f; x = newx; y = newy; pDC->SetPixelV((1000 + 7000 * x)/15, (6500 - 6000 * y)/15, RGB(x * 500 * R, R * 100, y * 2000 * R)); n--; } }