OpenGL sample
 

1.SDOpenGLView.h
// SDOpenGLView.h : interface of the CSDOpenGLView class
//
/////////////////////////////////////////////////////////////////////////////
#if !defined(AFX_MYSDOPENGLVIEW_H__75C5AAEC_37B0_4A8B_9132_9A0C663F6DDC__INCLUDED_)
#define AFX_MYSDOPENGLVIEW_H__75C5AAEC_37B0_4A8B_9132_9A0C663F6DDC__INCLUDED_
#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000
#include "MainFrm.h"
#include "math.h"
#include "SDOpenGLDoc.h"

class CSDOpenGLView : public CView
{
protected: // create from serialization only
DECLARE_DYNCREATE(CSDOpenGLView)
// Attributes
public:
CSDOpenGLDoc* GetDocument();
CSDOpenGLView();
virtual ~CSDOpenGLView();
// Operations
public:
int SX,SY;
// Overrides
// ClassWizard generated virtual function overrides
//{{AFX_VIRTUAL(CSDOpenGLView)
public:
virtual void OnDraw(CDC* pDC); // overridden to draw this view
virtual BOOL PreCreateWindow(CREATESTRUCT& cs);
protected:
virtual BOOL OnPreparePrinting(CPrintInfo* pInfo);
virtual void OnBeginPrinting(CDC* pDC, CPrintInfo* pInfo);
virtual void OnEndPrinting(CDC* pDC, CPrintInfo* pInfo);
//}}AFX_VIRTUAL
// Implementation
public:
void ReSetView(int N,int Kind);
CRect VRect[5];
void DrawView(int n);
void CadViewDirection(int direction);
void DrawGrid();
void SetBkColor();
void OnFrontView();
void OnLeftView();
void OnTopView();

/////////////////////////////////////////////////////////////////
//添加成员函数与成员变量
BOOL RenderScene();
BOOL SetupPixelFormat(void);
void SetLogicalPalette(void);
BOOL InitializeOpenGL(CDC* pDC);
CGpsApp *pApp;
HGLRC m_hRC; //OpenGL绘制描述表
HPALETTE m_hPalette; //OpenGL调色板
CDC* m_pDC; //OpenGL设备描述表
/////////////////////////////////////////////////////////////////
#ifdef _DEBUG
virtual void AssertValid() const;
virtual void Dump(CDumpContext& dc) const;
#endif
protected:
// Generated message map functions
protected:
//{{AFX_MSG(CSDOpenGLView)
afx_msg int OnCreate(LPCREATESTRUCT lpCreateStruct);
afx_msg void OnDestroy();
afx_msg void OnSize(UINT nType, int cx, int cy);
afx_msg void OnTimer(UINT nIDEvent);
afx_msg void OnLButtonDown(UINT nFlags, CPoint point);
afx_msg void OnChar(UINT nChar, UINT nRepCnt, UINT nFlags);
afx_msg BOOL OnMouseWheel(UINT nFlags, short zDelta, CPoint pt);
afx_msg void OnViewLight();
//}}AFX_MSG
DECLARE_MESSAGE_MAP()
};
#ifndef _DEBUG // debug version in SDOpenGLView.cpp
inline CSDOpenGLDoc* CSDOpenGLView::GetDocument()
{ return (CSDOpenGLDoc*)m_pDocument; }
#endif
/////////////////////////////////////////////////////////////////////////////
//{{AFX_INSERT_LOCATION}}
// Microsoft Visual C++ will insert additional declarations immediately before the previous line.
#endif // !defined(AFX_MYSDOPENGLVIEW_H__75C5AAEC_37B0_4A8B_9132_9A0C663F6DDC__INCLUDED_)

回复: OpenGL sample
 

2.SDOpenGLView.cpp
// SDOpenGLView.cpp : implementation of the CSDOpenGLView class
//
#include "stdafx.h"
#include "Gps.h"
#include "SDOpenGLDoc.h"
#include "SDOpenGLView.h"
#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif
/////////////////////////////////////////////////////////////////////////////
// CSDOpenGLView
IMPLEMENT_DYNCREATE(CSDOpenGLView, CView)
BEGIN_MESSAGE_MAP(CSDOpenGLView, CView)
//{{AFX_MSG_MAP(CSDOpenGLView)
ON_WM_CREATE()
ON_WM_DESTROY()
ON_WM_SIZE()
ON_WM_TIMER()
ON_WM_LBUTTONDOWN()
ON_WM_CHAR()
ON_WM_MOUSEWHEEL()
ON_COMMAND(ID_VIEW_LIGHT, OnViewLight)
//}}AFX_MSG_MAP
// Standard printing commands
ON_COMMAND(ID_FILE_PRINT, CView::OnFilePrint)
ON_COMMAND(ID_FILE_PRINT_DIRECT, CView::OnFilePrint)
ON_COMMAND(ID_FILE_PRINT_PREVIEW, CView::OnFilePrintPreview)
END_MESSAGE_MAP()
/////////////////////////////////////////////////////////////////////////////
// CSDOpenGLView construction/destruction
CSDOpenGLView::CSDOpenGLView()
{
// TODO: add construction code here
pApp=(CGpsApp*)AfxGetApp();
ReSetView(1,1);
ReSetView(2,2);
ReSetView(3,3);
ReSetView(4,4);

}
CSDOpenGLView::~CSDOpenGLView()
{
}
BOOL CSDOpenGLView::PreCreateWindow(CREATESTRUCT& cs)
{
// TODO: Modify the Window class or styles here by modifying
// the CREATESTRUCT cs
////////////////////////////////////////////////////////////////
//设置窗口类型
cs.style |=WS_CLIPCHILDREN | WS_CLIPSIBLINGS;
////////////////////////////////////////////////////////////////

return CView::PreCreateWindow(cs);
}
/////////////////////////////////////////////////////////////////////////////
// CSDOpenGLView drawing
void CSDOpenGLView::OnDraw(CDC* pDC)
{
CSDOpenGLDoc* pDoc = GetDocument();
ASSERT_VALID(pDoc);
// TODO: add draw code for native data here
CRect reWindow;
GetWindowRect(reWindow);
//SX,SY分别对应屏幕的1/2宽和1/2高
SX=reWindow.Width()/2;
SY=reWindow.Height()/2;
/*
VRect[1].left=0;VRect[1].right=SX/2;
VRect[1].top=0;VRect[1].bottom=SY+SY/2;
VRect[2].left=SX/2;VRect[2].right=SX*2;
VRect[2].top=0;VRect[2].bottom=SY+SY/2;
VRect[3].left=0;VRect[3].right=SY;
VRect[3].top=SY;VRect[3].bottom=SY*2;
VRect[4].left=SY;VRect[4].right=SY*2;
VRect[4].top=SY;VRect[4].bottom=SY*2;
*/

//////////////////////////////////////////////////////////////////
RenderScene(); //渲染场景
//////////////////////////////////////////////////////////////////


}
/////////////////////////////////////////////////////////////////////////////
// CSDOpenGLView printing
BOOL CSDOpenGLView::OnPreparePrinting(CPrintInfo* pInfo)
{
// default preparation
return DoPreparePrinting(pInfo);
}
void CSDOpenGLView::OnBeginPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/)
{
// TODO: add extra initialization before printing
}
void CSDOpenGLView::OnEndPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/)
{
// TODO: add cleanup after printing
}
/////////////////////////////////////////////////////////////////////////////
// CSDOpenGLView diagnostics
#ifdef _DEBUG
void CSDOpenGLView::AssertValid() const
{
CView::AssertValid();
}
void CSDOpenGLView::Dump(CDumpContext& dc) const
{
CView::Dump(dc);
}
CSDOpenGLDoc* CSDOpenGLView::GetDocument() // non-debug version is inline
{
ASSERT(m_pDocument->IsKindOf(RUNTIME_CLASS(CSDOpenGLDoc)));
return (CSDOpenGLDoc*)m_pDocument;
}
#endif //_DEBUG
/////////////////////////////////////////////////////////////////////////////
// CSDOpenGLView message handlers
int CSDOpenGLView::OnCreate(LPCREATESTRUCT lpCreateStruct)
{
if (CView::OnCreate(lpCreateStruct) == -1)
return -1;

// TODO: Add your specialized creation code here
//////////////////////////////////////////////////////////////////
//初始化OpenGL和设置定时器
m_pDC = new CClientDC(this);
SetTimer(1, 20, NULL);
InitializeOpenGL(m_pDC);
//////////////////////////////////////////////////////////////////
return 0;
}
void CSDOpenGLView::OnDestroy()
{
CView::OnDestroy();

// TODO: Add your message handler code here
/////////////////////////////////////////////////////////////////
//删除调色板和渲染上下文、定时器
::wglMakeCurrent(0,0);
::wglDeleteContext( m_hRC);
if (m_hPalette)
DeleteObject(m_hPalette);
if ( m_pDC )
{
delete m_pDC;
}
KillTimer(1);
/////////////////////////////////////////////////////////////////

}
void CSDOpenGLView::OnSize(UINT nType, int cx, int cy)
{
CView::OnSize(nType, cx, cy);

// TODO: Add your message handler code here
/////////////////////////////////////////////////////////////////
//添加窗口缩放时的图形变换函数
// glViewport(0,0,cx,cy);
/////////////////////////////////////////////////////////////////

}
void CSDOpenGLView::OnTimer(UINT nIDEvent)
{
// TODO: Add your message handler code here and/or call default
/////////////////////////////////////////////////////////////////
//添加定时器响应函数和场景更新函数
Invalidate(FALSE);
/////////////////////////////////////////////////////////////////

CView::OnTimer(nIDEvent);
}
/////////////////////////////////////////////////////////////////////
// 设置逻辑调色板
//////////////////////////////////////////////////////////////////////
void CSDOpenGLView::SetLogicalPalette(void)
{
struct
{
WORD Version;
WORD NumberOfEntries;
PALETTEENTRY aEntries[256];
} logicalPalette = { 0x300, 256 };
BYTE reds[] = {0, 36, 72, 109, 145, 182, 218, 255};
BYTE greens[] = {0, 36, 72, 109, 145, 182, 218, 255};
BYTE blues[] = {0, 85, 170, 255};
for (int colorNum=0; colorNum<256; ++colorNum)
{
logicalPalette.aEntries[colorNum].peRed =
reds[colorNum & 0x07];
logicalPalette.aEntries[colorNum].peGreen =
greens[(colorNum >> 0x03) & 0x07];
logicalPalette.aEntries[colorNum].peBlue =
blues[(colorNum >> 0x06) & 0x03];
logicalPalette.aEntries[colorNum].peFlags = 0;
}
m_hPalette = CreatePalette ((LOGPALETTE*)&logicalPalette);
}

//////////////////////////////////////////////////////////
// 初始化openGL场景
//////////////////////////////////////////////////////////
BOOL CSDOpenGLView::InitializeOpenGL(CDC* pDC)
{

m_pDC = pDC;
SetupPixelFormat();
//生成绘制描述表
m_hRC = ::wglCreateContext(m_pDC->GetSafeHdc());
//置当前绘制描述表
::wglMakeCurrent(m_pDC->GetSafeHdc(), m_hRC);

return TRUE;
}
//////////////////////////////////////////////////////////
// 设置像素格式
//////////////////////////////////////////////////////////
BOOL CSDOpenGLView::SetupPixelFormat()
{
PIXELFORMATDESCRIPTOR pfd = {
sizeof(PIXELFORMATDESCRIPTOR), // pfd结构的大小
1, // 版本号
PFD_DRAW_TO_WINDOW | // 支持在窗口中绘图
PFD_SUPPORT_OPENGL | // 支持 OpenGL
PFD_DOUBLEBUFFER, // 双缓存模式
PFD_TYPE_RGBA, // RGBA 颜色模式
24, // 24 位颜色深度
0, 0, 0, 0, 0, 0, // 忽略颜色位
0, // 没有非透明度缓存
0, // 忽略移位位
0, // 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
};
int pixelformat;
pixelformat = ::ChoosePixelFormat(m_pDC->GetSafeHdc(), &pfd);//选择像素格式
::SetPixelFormat(m_pDC->GetSafeHdc(), pixelformat, &pfd); //设置像素格式
if(pfd.dwFlags & PFD_NEED_PALETTE)
SetLogicalPalette(); //设置逻辑调色板
return TRUE;
}

//////////////////////////////////////////////////////////
// 场景绘制与渲染
//////////////////////////////////////////////////////////
BOOL CSDOpenGLView::RenderScene()
{
//设置背景色
SetBkColor();
glClear(GL_COLOR_BUFFER_BIT);
for(int i=1;i<5;i++)
{
if((pApp->WFlag!=1)&&(pApp->ActScean!=i))
DrawView(i);
}
DrawView(pApp->ActScean);
::SwapBuffers(m_pDC->GetSafeHdc());
//m_pDC->TextOut(10,10,"顶视图");
return TRUE;
}
//设置背景色
void CSDOpenGLView::SetBkColor()
{
glClearColor(pApp->BkR, pApp->BkG, pApp->BkB, 0.0f);
}

void CSDOpenGLView::DrawGrid()
{
float gs,gxmax,gx;
gs=pApp->GridS;
gxmax=(pApp->GridN-1)*gs/2;
gx=-gxmax;
//指定颜色
glColor3f(0.263, 0.4, 0.333);//墨绿色
//glColor3f(1.0f, 1.0f, 1.0f);//白色

for(int i=0;i<pApp->GridN;i++,gx+=gs)
{
glBegin(GL_LINES);
glVertex2f(-gxmax,gx);
glVertex2f(gxmax,gx);
glVertex2f(gx,-gxmax);
glVertex2f(gx,gxmax);
glEnd();
}
}
void CSDOpenGLView::OnLButtonDown(UINT nFlags, CPoint point)
{
// TODO: Add your message handler code here and/or call default

for(int i=1;i<5;i++)
if((VRect[i].PtInRect(point))&&(pApp->WFlag!=1))
{
pApp->ActScean=i;
}
CView::OnLButtonDown(nFlags, point);
}
void CSDOpenGLView::OnChar(UINT nChar, UINT nRepCnt, UINT nFlags)
{
// TODO: Add your message handler code here and/or call default
if(nChar=='w')pApp->WFlag=1;
if(nChar=='W')pApp->WFlag=0;
if(nChar=='t')ReSetView(pApp->ActScean,1);
if(nChar=='l')ReSetView(pApp->ActScean,3);
if(nChar=='f')ReSetView(pApp->ActScean,2);
if(nChar=='p')ReSetView(pApp->ActScean,4);
if(nChar=='a'){
pApp->SceanX[pApp->ActScean]-=0.1*sin(45);
pApp->SceanZ[pApp->ActScean]-=0.1*cos(45);
}
if(nChar=='d'){
pApp->SceanX[pApp->ActScean]+=0.1*sin(45);
pApp->SceanZ[pApp->ActScean]+=0.1*cos(45);
}

CView::OnChar(nChar, nRepCnt, nFlags);
}
void CSDOpenGLView::DrawView(int n)
{
if(n==1) glViewport(0,0,SX*2,SY*2);
//if(n==1)glViewport(0,SY,SY,SY);
//if(n==2)glViewport(SY,SY,SY,SY);
//if(n==3)glViewport(0,0,SY,SY);
//if(n==4)glViewport(SY,0,SY,SY);
//if(pApp->WFlag==1)glViewport(0,0,SY*2,SY*2);

glLoadIdentity ();
glRotatef(pApp->SceanAy[n],0,1,0);
glRotatef(pApp->SceanAx[n],1,0,0);
glRotatef(pApp->SceanAz[n],0,0,1);
glTranslatef(pApp->SceanX[n],pApp->SceanY[n],pApp->SceanZ[n]);
glScalef(pApp->SceanSx[n],pApp->SceanSy[n],pApp->SceanSz[n]);
//画栅格
DrawGrid();
//设置图形的颜色
glColor3f(0.3f, 1.0f, 1.0f);
auxSolidBox(0.3,0.2,0.3);
glColor3f(0.8,0.8,0.8);
if(pApp->ActScean==n)
{
glColor3f(0.9,0.8,0.3);
}
glLoadIdentity ();
glLineWidth(3);
glBegin(GL_LINE_STRIP);
glVertex2f(-1,-1);
glVertex2f(1,-1);
glVertex2f(1,1);
glVertex2f(-1,1);
glVertex2f(-1,-1);
glEnd();
glLineWidth(1);
}
BOOL CSDOpenGLView::OnMouseWheel(UINT nFlags, short zDelta, CPoint pt)
{
// TODO: Add your message handler code here and/or call default
if(zDelta>0){
pApp->SceanSx[pApp->ActScean]+=0.1;
pApp->SceanSy[pApp->ActScean]+=0.1;
pApp->SceanSz[pApp->ActScean]+=0.1;
}
if(zDelta<0){
pApp->SceanSx[pApp->ActScean]-=0.1;
pApp->SceanSy[pApp->ActScean]-=0.1;
pApp->SceanSz[pApp->ActScean]-=0.1;
}
return CView::OnMouseWheel(nFlags, zDelta, pt);
}
void CSDOpenGLView::ReSetView(int N, int Kind)
{
pApp->SceanSx[N]=1;
pApp->SceanSy[N]=1;
pApp->SceanSz[N]=1;
pApp->SceanX[N]=0;
pApp->SceanY[N]=0;
pApp->SceanZ[N]=0;
if(Kind==1){
pApp->SceanAx[N]=0;
pApp->SceanAy[N]=0;
pApp->SceanAz[N]=0;
}
if(Kind==2){
pApp->SceanAx[N]=90;
pApp->SceanAy[N]=0;
pApp->SceanAz[N]=0;
}
if(Kind==3){
pApp->SceanAx[N]=90;
pApp->SceanAy[N]=0;
pApp->SceanAz[N]=0;
}
if(Kind==4){
pApp->SceanAx[N]=45;
pApp->SceanAy[N]=0;
pApp->SceanAz[N]=45;
}
}
//不同视图方向——主视图，左视图，俯视图等
void CSDOpenGLView::CadViewDirection(int direction)
{
// if(direction==1)
// AfxMessageBox("i");
switch(direction)
{
case 0 :
OnFrontView();
break;
case 1:
OnLeftView();
break;
case 2:
OnTopView();
break;
default:
OnFrontView();
break;
}

}
//主视图
void CSDOpenGLView::OnFrontView()
{
// TODO: Add your command handler code here
pApp->SceanSx[pApp->ActScean]=1;
pApp->SceanSy[pApp->ActScean]=1;
pApp->SceanSz[pApp->ActScean]=1;
pApp->SceanAx[pApp->ActScean]=90;
pApp->SceanAy[pApp->ActScean]=0;
pApp->SceanAz[pApp->ActScean]=0;
}
//左视图
void CSDOpenGLView::OnLeftView()
{
// TODO: Add your command handler code here
pApp->SceanSx[pApp->ActScean]=1;
pApp->SceanSy[pApp->ActScean]=1;
pApp->SceanSz[pApp->ActScean]=1;
pApp->SceanAx[pApp->ActScean]=90;
pApp->SceanAy[pApp->ActScean]=0;
pApp->SceanAz[pApp->ActScean]=0;

}
//俯视图
void CSDOpenGLView::OnTopView()
{
// TODO: Add your command handler code here

pApp->SceanSx[pApp->ActScean]=1;
pApp->SceanSy[pApp->ActScean]=1;
pApp->SceanSz[pApp->ActScean]=1;
pApp->SceanAx[pApp->ActScean]=0;
pApp->SceanAy[pApp->ActScean]=0;
pApp->SceanAz[pApp->ActScean]=0;
}
void CSDOpenGLView::OnViewLight()
{
// TODO: Add your command handler code here
// theApp.pDocTemplateCatalog->OpenDocumentFile(NULL);//窗口大小???
}