OpenGL新手入门实验3view类代码

OpenGL新手入门实验3view类代码 /Exam3View.h:interface ofthe CExam3View class/#include#include#include#include#includeDlgAngle.h#if!defined(AFX_EXAM3VIEW_H_BCC1829A_1BA5_4C57_A92A_F2DE14AD7505_INCLUDED_)#define AFX_EXAM3VIEW_H_BCC1829A_1BA5_4C57_A92A_F2DE14AD7505_INCLUDED_#if_MSC_VER1000#pragma once#endif/_MSC_VER1000class CExam3View:public CViewprotected:/create fromserialization onlyCExam3View();DECLARE_DYNCREA TE(CExam3View)/Attributes public:CExam3Doc*GetDocument();/Operations public:/Overrides/ClassWizard generatedvirtual functionoverrides/AFX_VIRTUAL(CExam3View)public:virtual voidOnDraw(CDC*pDC);/overridden todraw thisview virtual BOOL PreCreateWindow(CREATESTRUCT&cs);protected:virtualBOOLOnPreparePrinting(CPrintInfo*pInfo);virtual voidOnBeginPrinting(CDC*pDC,CPrintInfo*pInfo);virtual voidOnEndPrinting(CDC*pDC,CPrintInfo*pInfo);/AFX_VIRTUAL/Implementation public:void gl_point(GLint x,GLint y);/声明+定义一些列的变量+函数来方便以后使用void DrawSence();void DrawCube();HGLRC m_hRC;HDC m_hDC;void Draw();void gl_Init();BOOL m_play;BOOL my_play;GLfloat m_fDeltaAngleZ;/标识角度GLfloat m_fDeltaAngleY;/标识角度GLfloat m_fDeltaAngleX;/标识角度GLfloat m_fAngleZ;/传递的参数GLfloat m_fAngleY;GLfloat m_fAngleX;virtualCExam3View();virtual voidAssertValid()const;#ifdef_DEBUG virtualvoid Dump(CDumpContext&dc)const;#endif protected:/Generated messagemap functionsprotected:/AFX_MSG(CExam3View);afx_msg voidOnPlayPause();afx_msg voidOnUpdatePlayPause(CCmdUI*pCmdUI);afx_msg voidOnDeltaAngle();afx_msg voidOnTimer(UINT nIDEvent);afx_msg voidOnSize(UINT nType,int cx,int cy);afx_msg intOnCreate(LPCREATESTRUCT lpCreateStruct);afx_msg voidOnDestroy();/AFX_MSG DECLARE_MESSAGE_MAP()#ifndef_DEBUG/debug versionin Exam3View.cpp inlineCExam3Doc*CExam3View:GetDocument()return(CExam3Doc*)m_pDocument;#endif/AFX_INSERT_LOCATION/Microsoft VisualC+will insertadditional declarationsimmediately beforethe previousline.#endif/!defined(AFX_EXAM3VIEW_H_BCC1829A_1BA5_4C57_A92A_F2DE14AD7505_INCLUDED_)/Exam3View.cpp:implementation ofthe CExam3View class/#include#include#include#include#includeDlgAngle.h#includestdafx.h#includeExam3.h#includeExam3Doc.h#includeExam3View.h#ifdef_DEBUG#define newDEBUG_NEW#undef THIS_FILE statihar THIS_FILE=_FILE_;#endif/CExam3View IMPLEMENT_DYNCREATE(CExam3View,CView)BEGIN_MESSAGE_MAP(CExam3View,CView)/AFX_MSG_MAP(CExam3View)ON_MAND(IDM_PLAY_PAUSE,OnPlayPause)ON_UPDATE_MAND_UI(IDM_PLAY_PAUSE,OnUpdatePlayPause)ON_MAND(IDM_DELTA_ANGLE,OnDeltaAngle)ON_WM_TIMER()ON_WM_SIZE()ON_WM_CREATE()ON_WM_DESTROY()/AFX_MSG_MAP/Standard printingmands ON_MAND(ID_FILE_PRINT,CView:OnFilePrint)ON_MAND(ID_FILE_PRINT_DIRECT,CView:OnFilePrint)ON_MAND(ID_FILE_PRINT_PREVIEW,CView:OnFilePrintPreview)END_MESSAGE_MAP()/CExam3View construction/destruction CExam3View:CExam3View()/构造函数中进行变量初始化/TODO:add constructioncode herem_fDeltaAngleX=10.0f;/定义刚开始的时候的窗口坐标初始值m_fDeltaAngleY=1.0f;/定义刚开始的时候的窗口坐标初始值m_fDeltaAngleZ=5.0f;/定义刚开始的时候的窗口坐标初始值CExam3View:CExam3View()BOOL CExam3View:PreCreateWindow(CREATESTRUCT&cs)/CExam3View drawingvoid CExam3View:OnDraw(CDC*pDC)CExam3Doc*pDoc=GetDocument();ASSERT_VALID(pDoc);DrawSence();/一定记得调用哦/TODO:add drawcode fornative datahere/TODO:Modify theWindow classor styleshere bymodifying/the CREATESTRUCTcs returnCView:PreCreateWindow(cs);m_fAngleX=m_fDeltaAngleX;/令变量等于框获取的数值m_fAngleY=m_fDeltaAngleY;/令变量等于框获取的数值m_fAngleZ=m_fDeltaAngleZ;/令变量等于框获取的数值m_play=FALSE;/刚开始的状态时不转动的/CExam3View printingBOOL CExam3View:OnPreparePrinting(CPrintInfo*pInfo)/default preparationreturn DoPreparePrinting(pInfo);void CExam3View:OnBeginPrinting(CDC*/*pDC*/,CPrintInfo*/*pInfo*/)/TODO:add extrainitialization beforeprintingvoid CExam3View:OnEndPrinting(CDC*/*pDC*/,CPrintInfo*/*pInfo*/)/TODO:add cleanupafter printing/CExam3View diagnostics#ifdef_DEBUG void CExam3View:AssertValid()constCView:Dump(dc);CExam3Doc*CExam3View:GetDocument()/non-debug versionis inlineASSERT(m_pDocument-IsKindOf(RUNTIME_CLASS(CExam3Doc);CView:AssertValid();void CExam3View:Dump(CDumpContext&dc)const return(CExam3Doc*)m_pDocument;#endif/_DEBUG/CExam3View message handlers void CExam3View:OnPlayPause()/定时器的使用调用/TODO:Add yourmand handlercode here/TODO:Add yourmand handlercode herevoid CExam3View:OnUpdatePlayPause(CCmdUI*pCmdUI)void CExam3View:OnDeltaAngle()CDlgAngle angleDlg;/声明CDlgAngle类的变量angleDlg angleDlg.m_DeltaAngleX=m_fDeltaAngleX;/初始化框angleDlg.m_DeltaAngleY=m_fDeltaAngleY;/对象的某属性=所取数值angleDlg.m_DeltaAngleZ=m_fDeltaAngleZ;/对象.属性=所取数值if(angleDlg.DoModal()=IDOK)/如果点击OK（创建对话框）/TODO:Add yourmand updateUI handlercode herem_play=m_play?FALSE:TRUE;/变量赋值if(m_play)SetTimer(1,45,NULL);/这个定时器的iD；时间延迟45毫秒启动一次else KillTimer (1);/停止定时器/则更新刚才所取到的数值，应用新的数值m_fDeltaAngleX=angleDlg.m_DeltaAngleX;/更新变量m_fDeltaAngleY=angleDlg.m_DeltaAngleY;m_fDeltaAngleZ=angleDlg.m_DeltaAngleZ;void CExam3View:OnTimer(UINT nIDEvent)/时间控制器MW_TIMER/TODO:Add yourmessage handlercode hereand/or calldefault m_fAngleY+=m_fDeltaAngleX;/随着时间的增加，每次围绕旋转的角度改变m_fAngleX+=m_fDeltaAngleY;/随着时间的增加，每次围绕旋转的角度改变m_fAngleZ+=m_fDeltaAngleZ;/随着时间的增加，每次围绕旋转的角度改变Invalidate(FALSE);CView:OnTimer(nIDEvent);void CExam3View:OnSize(UINT nType,int cx,int cy)CView:OnSize(nType,cx,cy);glViewport(0,0,cx,cy);/设定视口大小glMatrixMode(GL_PROJECTION);/设置当前矩阵元素值/用当前矩阵去乘*m所指定的矩阵，并将结果存放于*m中。 当前矩阵可以是用glLoadMatrix()/指定的矩阵，也可以是其它矩阵变换函数的综合结果glLoadIdentity();/单位矩阵的导入/glFrustum(-cx/2,cx/2,-cy/2,cy/2,-10,10);/设置用户定义的绘图区域/glFrustum（）；/glOtho2D();设置投影方式glOrtho(-cx/100,cx/100,-cy/100,cy/100,-10,10);/设置用户定义的绘图区域int CExam3View:OnCreate(LPCREATESTRUCT lpCreateStruct)if(CView:OnCreate(lpCreateStruct)=-1)return-1;gl_Init();/初始化OpenGL绘图环境return0;void CExam3View:OnDestroy()CView:OnDestroy();:wglMakeCurrent(NULL,NULL);:wglDeleteContext(m_hRC);KillTimer (1);/增加对KillTimer（）的调用/TODO:Add yourmessagehandlercode herevoid CExam3View:gl_Init()/下面的结构说明绘图设备的像素格式，例如像素的表示方法、各种颜色表示位数等PIXELFORMATDESCRIPTOR pfd=sizeof(PIXELFORMATDESCRIPTOR),/数据结构大小;1,/数据结构版本号PFD_DRAW_TO_WINDOW|PFD_SUPPORT_OPENGL|PFD_DOUBLEBUFFER,PFD_TYPE_RGBA,/缓冲区可以在窗口上绘图，支持OpenGL绘图24,/深度颜色缓冲区位数0,0,0,0,0,0,/忽略颜色位0,0,0,/没有非透明度缓存，忽略移位位，无累加缓存0,0,0,0,/忽略累加位32,/32位深度缓存0,/无模板缓存0,/无辅助缓存PFD_MAIN_PLANE,/主层0,/保留0,0,0,/忽略层，可见性和损毁掩模/得到当前正在使用的绘图设备句柄m_hDC=GetDC()-GetSafeHdc();/*根据当前绘图设备的特性，为之选择一个与pfd所指定的格式相匹配的像素格式，存于nPixelFormat中。 */int nPixelFormat=:ChoosePixelFormat(m_hDC,&pfd);/将当前绘图设备的像素格式设为nPixelFormat:SetPixelFormat(m_hDC,nPixelFormat,&pfd);/根据当前绘图设备，创建一个像素格式与之相匹配的OpenGL的绘图上下文m_hRC=:wglCreateContext(m_hDC);/*指定OpenGL的绘图上下文是m_hRC，并且建立它与当前绘图设备m_hDC间的连接，下列函数执行后，所有绘图命令的结果都出现在设备m_hDC上*/:wglMakeCurrent(m_hDC,m_hRC);glEnable(GL_DEPTH_TEST);/实际就是消隐，可以测试不加的时候会出现什么情况void CExam3View:Draw()glClearColor(1.0f,1.0f,1.0f,1.0f);glClear(GL_COLOR_BUFFER_BIT);/置窗口底色为白色glColor3f(0.0f,0.0f,0.0f);/设置绘图颜色为黑色DrawCube();/SwapBuffers(m_hDC);/glFlush();/显示上述OpenGL命令的执行效果void CExam3View:DrawCube()/用坐标法绘制立方体/glRotatef(m_play,1.0f,1.0f,1.0f);/在XYZ轴上旋转立方体glBegin(GL_QUADS);glColor3f(0.0f,1.0f,0.0f);/颜色改为蓝色glVertex3f(1.0f,1.0f,-1.0f);/四边形的右上顶点(顶面)glVertex3f(-1.0f,1.0f,-1.0f);/四边形的左上顶点(顶面)glVertex3f(-1.0f,1.0f,1.0f);/四边形的左下顶点(顶面)glVertex3f(1.0f,1.0f,1.0f);/四边形的右下顶点(顶面)glColor3f(1.0f,0.5f,0.0f);/颜色改成橙色glVertex3f(1.0f,-1.0f,1.0f);/四边形的右上顶点(底面)glVertex3f(-1.0f,-1.0f,1.0f);/四边形的左上顶点(底面)glVertex3f(-1.0f,-1.0f,-1.0f);/四边形的左下顶点(底面)glVertex3f(1.0f,-1.0f,-1.0f);/四边形的右下顶点(底面)/接着画立方体的前面。 保持Z坐标为一单位，前面正对着我们。 /glColor3f(1.0f,0.0f,0.0f);/颜色改成红色glVertex3f(1.0f,1.0f,1.0f);/四边形的右上顶点(前面)glVertex3f(-1.0f,1.0f,1.0f);/四边形的左上顶点(前面)glVertex3f(-1.0f,-1.0f,1.0f);/四边形的左下顶点(前面)glVertex3f(1.0f,-1.0f,1.0f);/四边形的右下顶点(前面)立方体后面的绘制方法与前面类似。 只是位于屏幕的里面。 注意Z坐标现在保持-1不变。 glColor3f(1.0f,1.0f,0.0f);/颜色改成黄色glVertex3f(1.0f,-1.0f,-1.0f);/四边形的右上顶点(后面)glVertex3f(-1.0f,-1.0f,-1.0f);/四边形的左上顶点(后面)glVertex3f(-1.0f,1.0f,-1.0f);/四边形的左下顶点(后面)glVertex3f(1.0f,1.0f,-1.0f);/四边形的右下顶点(后面)/还剩两个面就完成了。 您会注意到总有一个坐标保持不变。 这一次换成了X坐标。 因为我们在画左侧面。 glColor3f(0.0f,0.0f,1.0f);/颜色改成蓝色glVertex3f(-1.0f,1.0f,1.0f);/四边形的右上顶点(左面)glVertex3f(-1.0f,1.0f,-1.0f);/四边形的左上顶点(左面)glVertex3f(-1.0f,-1.0f,-1.0f);/四边形的左下顶点(左面)glVertex3f(-1.0f,-1.0f,1.0f);/四边形的右下顶点(左面)/立方体的最后一个面了。 X坐标保持为一单位。 逆时针绘制。 您愿意的话，留着这个面不画也可以，这样就是一个盒子:)/或者您要是有兴趣可以改变立方体所有顶点的色彩值，象金字塔那样混合颜色。 您会看见一个非常漂亮的彩色立方体，各种颜色在它的各个表面流淌。 glColor3f(1.0f,0.0f,1.0f);/颜色改成紫罗兰色glVertex3f(1.0f,1.0f,-1.0f