www.pudn.com > CPoint3DCloud.rar > COpenGL.h
/************************************************************************/
/* 北京博维恒信公司 */
/* COpenGL.h */
/* 编写人：李瑞 */
/* 日期： 二○○五年三月十五日 */
/* 用途： 封装OpenGL有关参数设置用于MFC */
/************************************************************************/
/**/
#ifndef __COPENGL_H__
#define __COPENGL_H__
#include "MyClass.h" //三维点、向量、四维点、颜色、二维纹理坐标
//矩阵计算 加 乘 逆 转 特征值 特征向量
//变换矩阵 平移 绕X\Y\Z任意一轴旋转
// 点绕任意轴旋转
// 向量旋转到Z轴平行方向
////////////////////////////////////////////////////////////////////////////
#include //win32 API 画图程序库
#pragma comment(lib,"gdi32.lib")//
////////////////////////////////////////////////////////////////////////////
class __declspec(dllexport) COpenGL //Set OpenGL Condition in CView
{
public:
////////////////////////////////////////////////////////////////////////////////
//鼠标视图操作mouse view operator
//鼠标键 左 中 右 滚轮button - left middle right wheel
//鼠标操作 单击 放开 双击 移动 转动 operator - down up d-down move
void OnRButtonUp(UINT nFlags, CPoint point);
void OnRButtonDown(UINT nFlags, CPoint point);
void OnRButtonDblClk(UINT nFlags, CPoint point);
BOOL OnMouseWheel(UINT nFlags, short zDelta, CPoint pt);
void OnMouseMove(UINT nFlags, CPoint point);
void OnMButtonUp(UINT nFlags, CPoint point);
void OnMButtonDown(UINT nFlags, CPoint point);
void OnMButtonDblClk(UINT nFlags, CPoint point);
void OnLButtonUp(UINT nFlags, CPoint point);
void OnLButtonDown(UINT nFlags, CPoint point);
void OnLButtonDblClk(UINT nFlags, CPoint point);
////////////////////////////////////////////////////////////////////////////////////////////////////////
// char ch =
// 'l' or 'L' - Left View
// 'r' or 'R' - Right View
// other - one view
void GetViewModelProjectMatrix(char ch , GLint Viewport[4], GLdouble Modelmatrix[16] , GLdouble Projmatrix[16]);//view model project matrix
//获取 Viewport － 视图矩阵 Modelmatrix － 模型矩阵 Projmatrix － 投影矩阵
void GetRotate(char ch , GLdouble Matrix[4][4]);//旋转矩阵
void SetRotate(char ch , GLdouble Matrix[4][4]);//rotate matrix
tagCVector GetScaling(char ch);//缩放比例
void SetScaling(char ch , tagCVector& fScaling);//scaling
tagCVector GetTranslate(char ch);//平移量
void SetTranslate(char ch , tagCVector& fTranslate);//translate
tagCVector GetRotateCenter(char ch);//旋转中心
void SetRotateCenter(char ch , tagCVector& fRotateCenter);// rotate center
// char ch
////////////////////////////////////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////////////////////////////////////
void GetLookAtData(tagCVector& fEyePos, tagCVector& fAspectPos, tagCVector& fUpAspect);
//视点设置 look view point
// fEyePos -视点 viewpiont fAspectPos - 视区中心viewbox center fUpAspect -相机方向 camera up aspect
void SetLookAtData(tagCVector& fEyePos , tagCVector& fAspectPos , tagCVector& fUpAspect);
tagCVector GetPerspectiveProjectionData();
//三维透视投影参数
//m_fPerspective.x - 角度 angle
//m_fPerspective.y - 距离视点最近距离near position Frustum 3D
//m_fPerspective.z - 距离视点最远距离far position Frustum 3D
void SetPerspectiveProjectionData(tagCVector& fPerspective);//3D Perspective
//m_fPerspective;//3D Perspective Projection
//m_fPerspective.x - angle
//m_fPerspective.y - near position Frustum 3D
//m_fPerspective.z - far position Frustum 3D
GLdouble GetOrthoScaleZAxis();//正交投影 Z方向与Y方向比例
void SetOrthoScaleZAxis(GLdouble& dOrthScale_Z);//3D Ortho z axis scale
bool IsTwoView();//判定是否切分窗口 CView::OnDraw(CDC *pDC) is or not two view
void SetTwoView(bool bBTwoView);//设置切分窗口与否 set two view or not
void GetBox(tagCVector& fBoxCenter, tagCVector& fBoxSize);//数据包围盒 中心 半边长box fBoxCenter - center point fBoxSize - box size
void SetBox(tagCVector& fBoxCenter, tagCVector& fBoxSize);
tagColor GetBfColor();//前景颜色
void SetBfColor(tagColor& fBfColor);//before color
tagColor GetBkColor();//背景颜色
void SetBkColor(tagColor& fBkColor);//back color
BYTE GetProjectionMode();//投影模式
void SetProjectionMode(BYTE bProjectionMode);//投影模式
//0 - Orthographic 2D Projection
//1 - Orthographic 3D Projection default
//2 - 3D Perspective Projection
//3 - Frustum 3D Perspective Projection
///////////////////////////////////////////////////////////////////////////////////////////////////
void OnDrawRight();//切分窗口 右窗口设置 CView::OnDraw(CDC *pDC) set right view projection data
void OnInitRenderOpenGL();//初始化窗口设置 包括切分左窗口 CView::OnDraw(CDC *pDC) one view and left view
void OnInitUpdateData();//初始化COpenGL内部参数 CView::CView()
void OnInitUpdatePartData();//初始化COpenGL内部部分参数 update part data
void SwapBufferOpenGL();//双缓存 CView::OnDraw(CDC *pDC)
void OnSizeOpenGL(UINT nType, int cx, int cy);//设置窗口大小 set view size CView::OnSize(UINT nType, int cx, int cy)
bool OnDestroyOpenGL();//释放OpenGL资源 destroy opengl rc //CView::OnDestroy() //
bool OnInitOpenGL(HWND hWnd);//获取Windows手柄 初始化环境参数 get windows handle int CView::OnCreate(LPCREATESTRUCT lpCreateStruct) OnInitOpenGL(GetSafeHwnd())
COpenGL();
~COpenGL();
protected:
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
void OnMouseScalePart(CPoint point , CRect& pRect , tagCVector& fScaling , tagCVector& fTranslate);
//鼠标操作局部放大
//scale part by select in rectangle return fscaling and fTranslate
void OnMouseRotateZAxis(CPoint point,tagCVector& fRotateCenter, GLint Viewport[4], GLdouble Modelmatrix[16] , GLdouble Projmatrix[16], GLdouble Matrix[][4]);
//鼠标操作绕垂直于屏幕方向旋转
//rotate around fRotateCenter in screen return Matrix
void OnMouseRotate(CPoint point,GLdouble Matrix[4][4]);
//鼠标操作任意旋转
//rotate by mouse move
void OnMouseTranslate(CPoint point,CSize& nSize,tagCVector& fScaling ,tagCVector& fTranslate);
//鼠标操平移
//translate view - size is nSize by mouse move return fTranslate
void OnMouseMoveTransform(UINT nFlags , CPoint point);
//鼠标中键操作进行变换
//transform by mouse middle
///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
void OnComputeProjectionParameter();//计算投影参数 compute project parameter (y,z) int m_fPerspective and m_fEyePos
void OnMouseDownRect(CPoint point);//如果切分窗口 判定鼠标单击在左还是右窗口if view divide into parts ,it jugdes mouse down in which view
void OnDrawMiddle();//画切分条 view divide into two , draw middle rectangle
void OnTransformOpenGL(char ch);//变换矩阵 transform matrix translate rotate get matrix
void OnProjectionCOpenGL(GLint xGL, GLint yGL, GLsizei xGLWidth, GLsizei yGLHeight);
//投影设置 (xGL , yGL) - 左上角视点 (xGLWidth , yGLHeight) - 视图区域横纵向大小
//opengl projection set
//(xGL , yGL) - view leftup point (xGLWidth , yGLHeight) - view size
void PrintString(const char *str);//绘制三维字体 print 3d string
void RasterFont();//初始化字体string raster
bool CreateCViewCOpenGLContext();//创建OpenGL设备文 create CView COpenGL Context
bool SetWindowPixelFormat();//设置Windows像素设置 set windows pixel format
protected:
///////////////////////////////////////////////////////////////////////////////////////////
/////COpenGL Data
HWND m_hWnd;//windows handle active
HDC m_hDC;//dc handle about windows
HGLRC m_hRC;//rc handle
CSize m_nSize;//windows view size
GLuint m_nFont;// 3d font
BYTE m_bProjectionMode;//0 - Orthographic 2D Projection
//1 - Orthographic 3D Projection
//2 - 3D Perspective Projection
//3 - Frustum 3D Perspective Projection
tagColor m_fBkColor;// set opengl back color
tagColor m_fBfColor;// set opengl before color
tagCVector m_fBoxSize;// box size half (length width height) x y z
tagCVector m_fBoxCenter;// box center vertex
GLdouble m_dBoxMaxSize;// half length of max edge of Box
bool m_bBTwoView;//is or not two view left and right
BYTE m_bMouseLeftRight;//Left Button Down in Left View or Right View
//0-no 1-Left View 2-Right View
///////////////////////////////////////////////////////////////////////////////////////
///projection data
GLdouble m_dOrthScale_Z;//Orthographic 3D Projection z axis ratio
tagCVector m_fPerspective;//3D Perspective Projection
//m_fPerspective.x - angle
//m_fPerspective.y - near position Frustum 3D
//m_fPerspective.z - far position Frustum 3D
tagCVector m_fEyePos;//3D Perspective Projection Eye position
tagCVector m_fAspectPos;////3D Perspective Projection eye aspect position
tagCVector m_fUpAspect;//3D Perspective Projection up aspect
/////////////////////////////////////////////////////////////////////////////////////////
////one view data
tagCVector m_fRotateCenter;//set opengl rotate center
tagCVector m_fTranslate;//set opengl translate dxyz
tagCVector m_fScaling;//m_fScaling (x,y,z) on x y z axis scaling
GLint viewport[4];//view matrix
GLdouble modelmatrix[16],projmatrix[16];//model projection matrix
GLdouble matrix[4][4];//i - clos j - rows
//rotate matrix all -left hand criterion
/////////////////////////////////////////////////////////////////////////////////////////
////left view data
tagCVector m_fLRotateCenter;//set left view opengl rotate center
tagCVector m_fLTranslate;//set left view opengl translate dxyz
tagCVector m_fLScaling;//m_fLScaling (x,y,z) on left view x y z axis scaling
GLint lviewport[4];// left view matrix
GLdouble lmodelmatrix[16],lprojmatrix[16];// left view model projection matrix
GLdouble lmatrix[4][4];//i - clos j - rows
//rotate matrix left view -left hand criterion
/////////////////////////////////////////////////////////////////////////////////////////
////right view data
tagCVector m_fRRotateCenter;//set right view opengl rotate center
tagCVector m_fRTranslate;//set right view opengl translate dxyz
tagCVector m_fRScaling;//m_fRScaling (x,y,z) on right view x y z axis scaling
GLint rviewport[4];// right view matrix
GLdouble rmodelmatrix[16],rprojmatrix[16];// right view model projection matrix
GLdouble rmatrix[4][4];//i - clos j - rows
//rotate matrix right view -left hand criterion
///////////////////////////////////////////////////////////////////////////////////
CPoint m_nMouseMovePos;// mouse move position
CPoint m_nMouseDownPos;// mouse down position
};
#endif