OpenGL+MFC实现旋转、缩放、平移

// paint_cylinderView.cpp : Cpaint_cylinderView 类的实现 // #include "ArcBall.h" #include "stdafx.h" // SHARED_HANDLERS 可以在实现预览、缩略图和搜索筛选器句柄的 // ATL 项目中进行定义，并允许与该项目共享文档代码。 #ifndef SHARED_HANDLERS #include "paint_cylinder.h" #endif #include "paint_cylinderDoc.h" #include "paint_cylinderView.h" #ifdef _DEBUG #define new DEBUG_NEW #endif // Cpaint_cylinderView IMPLEMENT_DYNCREATE(Cpaint_cylinderView, CView) BEGIN_MESSAGE_MAP(Cpaint_cylinderView, CView) // 标准打印命令 ON_COMMAND(ID_FILE_PRINT, &CView::OnFilePrint) ON_COMMAND(ID_FILE_PRINT_DIRECT, &CView::OnFilePrint) ON_COMMAND(ID_FILE_PRINT_PREVIEW, &Cpaint_cylinderView::OnFilePrintPreview) ON_WM_CONTEXTMENU() ON_WM_RBUTTONUP() ON_WM_CREATE() ON_WM_SIZE() ON_WM_DESTROY() ON_WM_ERASEBKGND() ON_WM_LBUTTONDOWN() ON_WM_RBUTTONDOWN() ON_WM_MOUSEHWHEEL() ON_WM_LBUTTONUP() ON_WM_MOUSEMOVE() ON_WM_MOUSEWHEEL() END_MESSAGE_MAP() // Cpaint_cylinderView 构造/析构 Cpaint_cylinderView::Cpaint_cylinderView() { // TODO: 在此处添加构造代码 m_dScale=1.0; } Cpaint_cylinderView::~Cpaint_cylinderView() { } BOOL Cpaint_cylinderView::PreCreateWindow(CREATESTRUCT& cs) { // TODO: 在此处通过修改 // CREATESTRUCT cs 来修改窗口类或样式 cs.style |= (WS_CLIPSIBLINGS | WS_CLIPCHILDREN); return CView::PreCreateWindow(cs); } // Cpaint_cylinderView 绘制 void Cpaint_cylinderView::OnDraw(CDC* /*pDC*/) { Cpaint_cylinderDoc* pDoc = GetDocument(); ASSERT_VALID(pDoc); if (!pDoc) return; // TODO: 在此处为本机数据添加绘制代码 glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT ); glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); // Clear Screen And Depth Buffer glMatrixMode(GL_MODELVIEW); glLoadIdentity(); // Reset The Current Modelview Matrix gluLookAt(0, 0,3, 0, 0, 0, 0, 1, 0); double *data=m_arcball.GetRotationData(); glMultMatrixd(data); glScaled(m_dScale, m_dScale, m_dScale); glTranslated(m_translate[0], m_translate[1], m_translate[2]); RenderScene(); glFinish(); SwapBuffers( m_pDC->GetSafeHdc() ); } // Cpaint_cylinderView 打印 void Cpaint_cylinderView::OnFilePrintPreview() { #ifndef SHARED_HANDLERS AFXPrintPreview(this); #endif } BOOL Cpaint_cylinderView::OnPreparePrinting(CPrintInfo* pInfo) { // 默认准备 return DoPreparePrinting(pInfo); } void Cpaint_cylinderView::OnBeginPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/) { // TODO: 添加额外的打印前进行的初始化过程 } void Cpaint_cylinderView::OnEndPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/) { // TODO: 添加打印后进行的清理过程 } void Cpaint_cylinderView::OnContextMenu(CWnd* /* pWnd */, CPoint point) { #ifndef SHARED_HANDLERS theApp.GetContextMenuManager()->ShowPopupMenu(IDR_POPUP_EDIT, point.x, point.y, this, TRUE); #endif } // Cpaint_cylinderView 诊断 #ifdef _DEBUG void Cpaint_cylinderView::AssertValid() const { CView::AssertValid(); } void Cpaint_cylinderView::Dump(CDumpContext& dc) const { CView::Dump(dc); } Cpaint_cylinderDoc* Cpaint_cylinderView::GetDocument() const // 非调试版本是内联的 { ASSERT(m_pDocument->IsKindOf(RUNTIME_CLASS(Cpaint_cylinderDoc))); return (Cpaint_cylinderDoc*)m_pDocument; } #endif //_DEBUG // Cpaint_cylinderView 消息处理程序 int Cpaint_cylinderView::OnCreate(LPCREATESTRUCT lpCreateStruct) { if (CView::OnCreate(lpCreateStruct) == -1) return -1; // TODO: 在此添加您专用的创建代码 InitializeOpenGL(); return 0; } BOOL Cpaint_cylinderView::InitializeOpenGL() { m_pDC = new CClientDC(this); if(m_pDC == NULL) { AfxMessageBox(_T("Error Obtaining DC")); return FALSE; } if(!SetupPixelFormat()) { return FALSE;} m_hRC = ::wglCreateContext (m_pDC->GetSafeHdc ()); if(m_hRC == 0) { MessageBox(_T("Error Creating RC")); return FALSE; } if(::wglMakeCurrent (m_pDC->GetSafeHdc (), m_hRC)==FALSE) { MessageBox(_T("Error making RC Current")); return FALSE; } ::glClearColor(1.0f,1.0f,1.0f,1.0f); ::glClearDepth(1.0f); ::glEnable(GL_DEPTH_TEST); GLfloat light_ambient[] = {0.0, 0.0, 0.0, 1.0}; GLfloat light_diffuse[] = {1.0, 1.0, 1.0, 1.0}; GLfloat light_specular[] = {1.0, 1.0, 1.0, 1.0}; glEnable(GL_LIGHTING); glEnable(GL_LIGHT0); glEnable(GL_LIGHT1); glEnable(GL_LIGHT2); GLfloat mat_ambient[] = {0.7, 0.7, 0.7, 1.0}; glMaterialfv(GL_FRONT, GL_AMBIENT, mat_ambient); return TRUE; } BOOL Cpaint_cylinderView::SetupPixelFormat() { static PIXELFORMATDESCRIPTOR pfd = { sizeof(PIXELFORMATDESCRIPTOR), // size of this pfd 1, // version number PFD_DRAW_TO_WINDOW | // support window PFD_SUPPORT_OPENGL | // support OpenGL PFD_DOUBLEBUFFER, // double buffered PFD_TYPE_RGBA, // RGBA type 24, // 24-bit color depth 0, 0, 0, 0, 0, 0, // color bits ignored 0, // no alpha buffer 0, // shift bit ignored 0, // no accumulation buffer 0, 0, 0, 0, // accum bits ignored 16, // 16-bit z-buffer 0, // no stencil buffer 0, // no auxiliary buffer PFD_MAIN_PLANE, // main layer 0, // reserved 0, 0, 0 // layer masks ignored }; int nPixelFormat = ::ChoosePixelFormat(m_pDC->GetSafeHdc(), &pfd); if ( nPixelFormat == 0 ) { return FALSE;} if ( ::SetPixelFormat(m_pDC->GetSafeHdc(), nPixelFormat, &pfd) == FALSE) { return FALSE; } return TRUE; } void Cpaint_cylinderView::OnSize(UINT nType, int cx, int cy) { CView::OnSize(nType, cx, cy); // TODO: Add your message handler code here if ( 0 >= cx || 0 >= cy ) { return; } m_arcball.SetBound(cx, cy); // select the full client area m_nWinWidth = cx; m_nWinHeight = cy; //m_render.SetWindowSize(cx, cy); glViewport(0, 0, cx, cy); // compute the aspect ratio // this will keep all dimension scales equal GLdouble aspect_ratio = (GLdouble)m_nWinWidth/(GLdouble)m_nWinHeight; // select the projection matrix and clear it glMatrixMode(GL_PROJECTION); glLoadIdentity(); // select the viewing volume double width = 1, height = 1; if (m_nWinWidth > m_nWinHeight) width *= aspect_ratio; else height /= aspect_ratio; glOrtho(-width, width, -height, height, 1.0, 6.0); //glFrustum(-width, width, -height, height, 1, 3); // switch back to the modelview matrix and clear it glMatrixMode(GL_MODELVIEW); } void Cpaint_cylinderView::OnDestroy() { CView::OnDestroy(); // TODO: 在此处添加消息处理程序代码 //绘制完成后断开dc和rc的绑定 if(::wglMakeCurrent (NULL, NULL) == FALSE) { MessageBox(_T("Could not make RC non-current")); } //删除rc if(::wglDeleteContext (m_hRC)==FALSE) { MessageBox(_T("Could not delete RC")); } //删除dc if(m_pDC) { delete m_pDC; } //Set it to NULL m_pDC = NULL; } void Cpaint_cylinderView::RenderScene() { /* glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); // Clear Screen And Depth Buffer glLoadIdentity(); // Reset The Current Modelview Matrix glTranslatef(-1.5f,0.0f,-6.0f); // Move Left 1.5 Units And Into The Screen 6.0 glRotatef(45,0.0f,4.0f,-1.0f); */ #define PI 3.1415926 // glEnable(GL_COLOR_MATERIAL); int nSlice=32; double r=0.5,h=2.5; double delta = PI * 2 / nSlice; double angle = delta; glColor3f(1.0f, 0.0f, 0.0f); //top glBegin(GL_TRIANGLE_FAN); glNormal3f(0, 0, 1); glVertex3d(0, 0, h); glVertex3d